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128-434: The Mount Washington Cog Railway , also known as the Cog , is the world's first mountain-climbing cog railway (rack-and-pinion railway). The railway climbs Mount Washington in New Hampshire , United States. It uses a Marsh rack system and both steam and biodiesel -powered locomotives to carry tourists to the top of the mountain. Its track is built to a 4 ft 8 in ( 1,422 mm ) gauge, which

256-401: A diesel locomotive or electric locomotive , the steam locomotive only works when its powerplant (the boiler, in this case) is fairly level. The locomotive boiler requires water to cover the boiler tubes and firebox sheets at all times, particularly the crown sheet , the metal top of the firebox. If this is not covered with water, the heat of the fire will soften it enough to give way under

384-470: A ratchet and pawl mechanism engaged during the climb that prevents any roll-back; during descent, both locomotive and car are braked. Design improvements have replaced the ratchet (gear and pawl mechanism) with sprag clutches and disc brake assemblies. Most of the locomotives were made by the Manchester Locomotive Works . The rack rail design used is one of Marsh's own inventions, using

512-513: A royal charter in the name of King George III establishing the college. That charter created a college "for the education and instruction of youth of the Indian tribes in this land in reading, writing, and all parts of learning which shall appear necessary and expedient for civilizing and christianizing children of pagans as well as in all liberal arts and sciences and also of English youth and any others". The reference to educating Native American youth

640-469: A 20- tooth , 3-foot (914 mm) diameter cog wheel (pinion) on the left side that engaged in rack teeth (two teeth per foot) on the outer side of the rail, the metal "fishbelly" edge rail with its side rack being cast all in one piece, in 3-foot (1 yd; 914 mm) lengths. Blenkinsop's system remained in use for 25 years on the Middleton Railway, but it became a curiosity because simple friction

768-458: A 35-room hotel along the line, about one mile (1.6 km) below the summit and two miles (3.2 km) above the station, to be opened in 2019 for the 150th anniversary of the train. However, the proposal drew opposition due to its location in the alpine zone of the mountain and was shelved. In April 2017, the Bedor family sold its interest in the railway to Wayne Presby, the only remaining member of

896-548: A charter, not merely up Mount Washington, but also to the moon. Marsh obtained a charter for the road on June 25, 1858, but the American Civil War prevented any action until May 1866. He developed a prototype locomotive and a short demonstration section of track, then found investors, forming the Mount Washington Railway Company in the spring of 1866, and started construction. The route closely followed

1024-473: A commemorative trip for the railway's 60th anniversary. After ascending to Jacob's Ladder, the locomotive began a planned descent but jumped up and landed to the right of the cog rail when a tooth broke from a gear wheel. The friction brake was unable to prevent the locomotive from accelerating downhill. The crew jumped to safety (though some suffered broken bones), but a photographer riding the engine to take publicity photos, Daniel P. Rossiter, fell to his death as

1152-440: A continuous rack. So long as the breaks in the rack were shorter than the distance between the drive pinions on the locomotive, the rack rail could be interrupted wherever there was need to cross over a running rail. Turnouts are far more complex when the rack is at or below the level of the running rails. Marsh's first rack patent shows such an arrangement, and the original Mount Washington Cog Railway he built had no turnouts. It

1280-473: A contract by the state and reversed New Hampshire's takeover of the college. Webster concluded his peroration with the famous words: "It is, Sir, as I have said, a small college. And yet there are those who love it." Dartmouth taught its first African-American students in 1775 and 1808. By the end of the Civil War , 20 black men had attended the college or its medical school. and Dartmouth "was recognized in

1408-598: A daily route connecting Hanover and Montreal . All three cities are popular weekend/vacation destinations for Dartmouth students. The college's creative and performing arts facility is the Hopkins Center for the Arts ("the Hop"). Opened in 1962, the Hop houses the college's drama, music, film, and studio arts departments, as well as a woodshop, pottery studio, and jewelry studio which are open for use by students and faculty. The building

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1536-709: A few years on display locally, it was shipped to the World's Columbian Exposition in 1893. The Baltimore and Ohio Railroad (B&O) took possession of the locomotive after the Exposition, and stored it in Baltimore until the 1927 Fair of the Iron Horse celebrating the B&;O's 100th birthday. The Boston & Maine Railroad restored Old Peppersass at its Concord shops following the Fair to make

1664-445: A gradient. This is one of the reasons why rack railways were among the first to be electrified and most of today's rack railways are electrically powered. In some cases, a vertical boiler can be used that is less sensitive for the track gradient. On a rack-only railroad, locomotives are always downward of their passenger cars for safety reasons: the locomotive is fitted with powerful brakes, often including hooks or clamps that grip

1792-491: A ladder between two L-shaped wrought-iron rails. The first public trial of the Marsh rack on Mount Washington was made on August 29, 1866, when only one quarter of a mile (402 meters) of track had been completed. The Mount Washington railway opened to the public on August 14, 1868. The pinion wheels on the locomotives have deep teeth that ensure that at least two teeth are engaged with the rack at all times; this measure helps reduce

1920-615: A ladder-like rack with open bar rungs engaged by the teeth of the cog wheel . This system allows snow and debris to fall through the rack, rather than lodging in it. A similar design, called the Riggenbach rack system , was invented by engineer Niklaus Riggenbach in Switzerland at about the same time. The Swiss Consul to the United States visited Marsh while constructing the railway up Mount Washington, and his enthusiastic reports persuaded

2048-640: A major revitalization of facilities, faculty, and the student body, following large endowments such as the $ 10,000 given by Dartmouth alumnus and law professor John Ordronaux . 20 new structures replaced antiquated buildings, while the student body and faculty both expanded threefold. Tucker is often credited for having "refounded Dartmouth" and bringing it into national prestige. Presidents Ernest Fox Nichols (1909–16) and Ernest Martin Hopkins (1916–45) continued Tucker's trend of modernization, further improving campus facilities and introducing selective admissions in

2176-526: A mechanical engineer whose career began at the Portsmouth Naval Shipyard . In the summer of 2008, the Cog introduced its first diesel locomotive. The Great Recession and the 2000s energy crisis led to fewer passengers, and the Cog sought to cut costs with the diesel, which could make three round trips for the cost of one steam train round trip. In December 2016, the owner of the Cog proposed building

2304-419: A men's institution, began admitting women as full-time students and undergraduate degree candidates in 1972 amid much controversy. At about the same time, the college adopted its " Dartmouth Plan " of academic scheduling, permitting the student body to increase in size within the existing facilities. In 1988, Dartmouth's alma mater song's lyrics changed from "Men of Dartmouth" to "Dear old Dartmouth". During

2432-468: A mountain trail that had been established earlier in the century by Ethan Allen Crawford . Despite the railroad's incomplete state, the first paying customers started riding on August 14, 1868, and the construction reached the summit in July 1869. The early locomotives – represented today by the restored display locomotive, #1 Old Peppersass – all had vertical boilers , like many stationary steam engines of

2560-504: A quarter—27.4% to be exact—of student loans for undergraduate students. So, while Dartmouth gets glowing coverage in news publications across the country, 72.6% of the debt it saddles its students with remains." Dartmouth functions on a quarter system, operating year-round on four ten-week academic terms . The Dartmouth Plan (or simply "D-Plan") is an academic scheduling system that permits the customization of each student's academic year. All undergraduates are required to be in residence for

2688-461: A record 28,841 applications of which 6.2% were accepted, consistent with the prior two years; approximately 67% of those accepted are expected to matriculate. Of those admitted students who reported class rank, 444 were ranked first or second in their class, while 96% ranked in the top decile. The admitted students' academic profile showed an all-time high SAT average score of 1501, while the average composite ACT score remained at 33. Additionally, for

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2816-468: A simplified but compatible rack, where the teeth on the engine pinions engaged square holes punched in a bar-shaped center rail. J. H. Morgan patented several alternative turnout designs for use with this rack system. Curiously, Morgan recommended an off-center rack in order to allow clear passage for pedestrians and animals walking along the tracks. Some photos of early Morgan installations show this. A simplified rack mounting system could be used when

2944-570: A term off for vacation, outside internships, or research projects. The typical course load is three classes per term, and students will generally enroll in classes for 12 total terms over the course of their academic career. The D-Plan was instituted in the early 1970s at the same time that Dartmouth began accepting female undergraduates. It was initially devised as a plan to increase the enrollment without enlarging campus accommodations, and has been described as "a way to put 4,000 students into 3,000 beds". Although new dormitories have been built since,

3072-539: A terrace above the Connecticut River , Dartmouth's 269-acre (109 ha) main campus is in the rural Upper Valley region of New England . The university functions on a quarter system, operating year-round on four ten-week academic terms. Dartmouth is known for its undergraduate focus, Greek culture , and campus traditions . Its 34 varsity sports teams compete intercollegiately in the Ivy League conference of

3200-693: A total of 607 tenured or tenure-track faculty members, including the highest proportion of female tenured professors among the Ivy League universities, and the first black woman tenure-track faculty member in computer science at an Ivy League university . Faculty members have been at the forefront of such major academic developments as the Dartmouth Workshop , the Dartmouth Time-Sharing System , Dartmouth BASIC , and Dartmouth ALGOL 30 . In 2005, sponsored project awards to Dartmouth faculty research amounted to $ 169 million. Dartmouth served as

3328-556: A variety of academic fields, proficiency in a foreign language, and completion of a writing class and first-year seminar in writing. Many departments offer honors programs requiring students seeking that distinction to engage in "independent, sustained work", culminating in the production of a thesis . In addition to the courses offered in Hanover, Dartmouth offers 57 different off-campus programs, including Foreign Study Programs, Language Study Abroad programs, and Exchange Programs. Through

3456-533: Is accredited by the New England Commission of Higher Education . In Forbes ' 2019 rankings of 650 universities, liberal arts colleges and service academies, Dartmouth ranked 10th overall and 10th in research universities. In the Forbes 2018 "grateful graduate" rankings, Dartmouth came in first for the second year in a row. The 2021 Academic Ranking of World Universities ranked Dartmouth among

3584-524: Is $ 200,400, with 58% of students coming from the top 10% highest-earning families and 14% from the bottom 60%. However, a 2022 article from The Dartmouth disputes the college's claims by saying the following: "To put it all together with the $ 9 million of student debt from the Class of 2021, this change in Dartmouth policy, hailed as "eliminat[ing] loans for undergraduate students" actually eliminated only about

3712-450: Is among Dartmouth's most popular majors. These two departments are known for enforcing a median grade of B+ in most of their courses in order to curb the burgeoning trend of grade inflation at American universities. In order to graduate, a student must complete 35 total courses, eight to ten of which are typically part of a chosen major program. Other requirements for graduation include the completion of ten "distributive requirements" in

3840-510: Is centered on a 5-acre (2 ha) " Green ", a former field of pine trees cleared in 1771. Dartmouth is the largest private landowner of the town of Hanover, and its total landholdings and facilities are worth an estimated $ 434 million. In addition to its campus in Hanover, Dartmouth owns 4,500 acres (18 km ) of Mount Moosilauke in the White Mountains and a 27,000-acre (110 km ) tract of land in northern New Hampshire known as

3968-549: Is closed to wheeled vehicles in winter – and usually before and after – and used primarily by snowmobiles. The roughly northbound route from U.S. Route 302 in Crawford Notch via Mt. Clinton Road is also closed in the winter to vehicular traffic. Operations of trains all winter began in 2004–2005, and the Cog Base Road is plowed and sanded all winter to allow tourists, skiers, and employees access to

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4096-525: Is now a research university rather than simply an undergraduate college, it continues to go by "Dartmouth College" to emphasize its focus on undergraduate education. Following a liberal arts curriculum, Dartmouth provides undergraduate instruction in 40 academic departments and interdisciplinary programs, including 60 majors in the humanities , social sciences , natural sciences , and engineering , and enables students to design specialized concentrations or engage in dual degree programs. In addition to

4224-674: Is one of the nine colonial colleges chartered before the American Revolution . Emerging into national prominence at the turn of the 20th century, Dartmouth has since been considered among the most prestigious undergraduate colleges in the United States. Although originally established to educate Native Americans in Christian theology and the English way of life, the university primarily trained Congregationalist ministers during its early history before it gradually secularized. While Dartmouth

4352-415: Is provided for students from families with total incomes of $ 125,000 or less and possessing typical assets. Dartmouth is also one of a few U.S. universities to eliminate undergraduate student loans and replace them with expanded scholarship grants. In 2015, $ 88.8 million (~$ 112 million in 2023) in need-based scholarships were awarded to Dartmouth students. The median family income of Dartmouth students

4480-652: Is technically a narrow gauge , as it is 1 ⁄ 2 inch (13 mm) less than a 4 ft  8 + 1 ⁄ 2  in ( 1,435 mm ) standard gauge . It is the second-steepest rack railway in the world, after the Pilatus Railway in Switzerland, with an average grade of over 25% and a maximum grade of 37%. The railway is approximately 3 miles (5 km) long and ascends Mount Washington's western slope, beginning at an elevation of approximately 2,700 feet (820 m) above sea level and ending just short of

4608-560: Is very low, generally from 9 to 25 kilometres per hour (5.6 to 15.5 mph) depending on gradient and propulsion method. Because the Skitube has gentler gradients than typical, its speeds are higher than typical. The Culdee Fell Railway is a fictional cog railway on the Island of Sodor in The Railway Series by Rev. W. Awdry . Its operation, locomotives and history are based on those of

4736-587: The Matariki Network of Universities (MNU) together with Durham University (UK), Queen's University (Canada), University of Otago (New Zealand), University of Tübingen (Germany), University of Western Australia (Australia) and Uppsala University (Sweden). In early August 2019, Dartmouth College agreed to pay nine current and former students a total of $ 14 million to settle a class-action lawsuit alleging they were sexually harassed by three former neuroscience professors. In 2019, Dartmouth College

4864-450: The Montauks . Wheelock founded Moor's Indian Charity School in 1755. The Charity School proved somewhat successful, but additional funding was necessary to continue school's operations, and Wheelock sought the help of friends to raise money. The first major donation to the school was given by John Phillips in 1762, who would go on to found Phillips Exeter Academy . Occom, accompanied by

4992-584: The NCAA Division I . The university has many prominent alumni , including 170 members of the United States Congress , 25 U.S. governors , 8 U.S. Cabinet secretaries , 3 Nobel Prize laureates, 2 U.S. Supreme Court justices, and a U.S. vice president . Other notable alumni include 81 Rhodes Scholars , 26 Marshall Scholarship recipients, 13 Pulitzer Prize recipients, 10 CEOs of Fortune 500 companies, and 51 Olympic medalists . Dartmouth

5120-530: The Nilgiri Mountain Railway . The Agudio rack system was invented by Tommaso Agudio. Its only long-lived application was on the Sassi–Superga tramway which opened in 1884. It used a vertical rack with cog wheels on each side of the central rack. Its unique feature, however, was that the 'locomotive' was propelled by means of an endless cable driven from an engine house at the foot of the incline. It

5248-617: The Second College Grant . Dartmouth's campus buildings vary in age from Wentworth and Thornton Halls of the 1820s (the oldest surviving buildings constructed by the college) to new dormitories and mathematics facilities completed in 2006. Most of Dartmouth's buildings are designed in the Georgian colonial architecture style, a theme which has been preserved in recent architectural additions. The college has actively sought to reduce carbon emissions and energy usage on campus, earning it

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5376-661: The Snowdon Mountain Railway . It is featured in the book Mountain Engines . The Štrbské Pleso rack railway in Slovakia is featured in "The Bounty" by Janet Evanovich and Steve Hamilton . Dartmouth College Dartmouth College ( / ˈ d ɑːr t m ə θ / ; DART -məth ) is a private Ivy League research university in Hanover, New Hampshire , United States. Established in 1769 by Eleazar Wheelock , Dartmouth

5504-510: The V-12 Navy College Training Program which offered students a path to a navy commission. The Dartmouth workshop , which was held in 1956, is widely considered to be the founding event of artificial intelligence as a field. In 1970, longtime professor of mathematics and computer science John George Kemeny became president of Dartmouth. Kemeny oversaw several major changes at the college. Dartmouth, which had been

5632-455: The 1920s. In 1945, Hopkins was subject to no small amount of controversy, as he openly admitted to Dartmouth's practice of using racial quotas to deny Jews entry into the university. John Sloan Dickey , serving as president from 1945 until 1970, strongly emphasized the liberal arts, particularly public policy and international relations . During World War II , Dartmouth was one of 131 colleges and universities nationally that took part in

5760-537: The 1990s, the college saw a major academic overhaul under President James O. Freedman and a controversial (and ultimately unsuccessful) 1999 initiative to encourage the school's single-sex Greek houses to go coed. The first decade of the 21st century saw the commencement of the $ 1.5 billion Campaign for the Dartmouth Experience, the largest capital fundraising campaign in the college's history, which surpassed $ 1 billion in 2008. The mid- and late first decade of

5888-442: The 2016–2017 academic year, Dartmouth received 685 transfer applications of which 5.1% were accepted, with an average SAT composite score of 1490, average composite ACT score of 34, and average college GPA of about 3.85. Dartmouth meets 100% of students' demonstrated financial need in order to attend the college, and currently admits all students, including internationals, on a need-blind basis . Dartmouth guarantees to meet 100% of

6016-530: The 21st century have also seen extensive campus construction, with the erection of two new housing complexes, full renovation of two dormitories, and a forthcoming dining hall, life sciences center, and visual arts center. In 2004, Booz Allen Hamilton selected Dartmouth College as a model of institutional endurance "whose record of endurance has had implications and benefits for all American organizations, both academic and commercial", citing Dartmouth College v. Woodward and Dartmouth's successful self-reinvention in

6144-410: The 90–110th best universities in the nation. However, this specific ranking has drawn criticism from scholars for not adequately adjusting for the size of an institution, which leads to larger institutions ranking above smaller ones like Dartmouth. The 2006 Carnegie Foundation classification listed Dartmouth as the only "majority-undergraduate", "arts-and-sciences focus[ed]", "research university" in

6272-693: The Abt system was on the Harzbahn in Germany, which opened in 1885. The Abt system was also used for the construction of the Snowdon Mountain Railway in Wales from 1894 to 1896. The pinion wheels can be mounted on the same axle as the rail wheels, or driven separately. The steam locomotives on the West Coast Wilderness Railway have separate cylinders driving the pinion wheel, as do the "X"-class locomotives on

6400-573: The Abt system, but typically wider than a single Abt bar. The Lamella rack can be used by locomotives designed for use on the Riggenbach or the Strub systems, so long as the safety-jaws that were a feature of the original Strub system are not used. Some railways use racks from multiple systems; for example, the St. Gallen Gais Appenzell Railway in Switzerland has sections of Riggenbach, Strub, and Lamella rack. Most of

6528-606: The African-American community as a place where a man of color could go to get educated". One of them, Jonathan C. Gibbs , served as Secretary of State and Superintendent of Public Instruction for the state of Florida . In 1866, the New Hampshire College of Agriculture and the Mechanic Arts was incorporated in Hanover, in connection with Dartmouth College. The institution was officially associated with Dartmouth and

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6656-548: The Base Road's full length from Bretton Woods . An especially scenic route, initially southbound from U.S. Route 2 , follows Jefferson Notch Road, a narrow dirt road with hairpin turns; it rises 1,500 feet (460 m) to the pass, at 3,000 feet (914 m) above sea level , between Mount Jefferson in the Presidential Range and Mount Dartmouth , before descending to its junction with the Base Road. The Jefferson Notch Road

6784-479: The Base Station. The steam locomotives on the railway generate large amounts of smoke, nicknamed "Cog Smog". The railway is exempted from the state's air-pollution-control law (RSA 125-C:20), which exempts "any steam locomotives and engines or replacements thereof used in connection with the operation of a railroad or railway which were in operation or on order prior to January 1, 1973, and are located entirely within

6912-841: The British market. Between 1903 and 1909, the McKell Coal and Coke company in Raleigh County, West Virginia, installed 35,000 feet (10,700 m) of Morgan rack/third-rail track in its mines. Between 1905 and 1906, the Mammoth Vein Coal Company installed 8,200 feet (2,500 m) of powered rack in two of its mines in Everist, Iowa , with a maximum grade of 16%. The Donohoe Coke Co. of Greenwald, Pennsylvania had 10,000 feet (3,050 m) of Goodman rack in its mine in 1906. The Morgan system saw limited use on one common carrier railroad in

7040-613: The Cog Railway are between the two main stations, one at the summit and the other adjacent to the operators' logistical and repair base. From 2003 to 2006, "ski trains" ran, stopping at an intermediate station, from which passengers could ski down to the Base Station. The Cog Railway track crosses over three hiking trails, including the Gulfside Trail, which is part of the Appalachian Trail . Some hikers have been known to wait for

7168-531: The Cog Railway was controlled and owned by Wayne Presby and Joel Bedor of Littleton, New Hampshire . The Bedor and Presby families also owned the Mount Washington Hotel and Resort in Bretton Woods for the period 1991–2006. In 1995, the railway appointed Charles Kenison as general manager. These individuals were responsible for a complete revitalization of the railroad, with the assistance of Al LaPrade,

7296-554: The Graduate Studies program, Dartmouth grants doctorate and master's degrees in 19 Arts & Sciences graduate programs. Although the first graduate degree, a PhD in classics, was awarded in 1885, many of the current PhD programs have only existed since the 1960s. Furthermore, Dartmouth is home to three professional schools: the Geisel School of Medicine (established 1797), Thayer School of Engineering (1867)—which also serves as

7424-526: The Morgan rack was not used for third-rail power and the Morgan rack offered interesting possibilities for street railways. The Morgan rack was good for grades of up to 16 percent . The Goodman Equipment Company began marketing the Morgan system for mine railways , and it saw widespread use, particularly where steep grades were encountered underground. By 1907, Goodman had offices in Cardiff, Wales , to serve

7552-552: The Reverend Nathaniel Whitaker, traveled to England in 1766 to raise money from churches. With these funds, they established a trust to help Wheelock. The head of the trust was a Methodist named William Legge, 2nd Earl of Dartmouth . Although the fund provided Wheelock ample financial support for the Charity School, Wheelock initially had trouble recruiting Indians to the institution, primarily because its location

7680-595: The Social Sciences , the Hood Museum of Art , the John Sloan Dickey Center for International Understanding, and the Hopkins Center for the Arts . With a student enrollment of about 6,700, Dartmouth is the smallest university in the Ivy League. Undergraduate admissions are highly selective with an acceptance rate of 5.3% for the class of 2028, including a 3.8% rate for regular decision applicants. Situated on

7808-541: The Strub system is on the Jungfraubahn in Switzerland. Strub is the simplest rack system to maintain and has become increasingly popular. In 1900, E. C. Morgan of Chicago received a patent on a rack railway system that was mechanically similar to the Riggenbach rack, but where the rack was also used as a third rail to power the electric locomotive. Morgan went on to develop heavier locomotives and with J. H. Morgan, turnouts for this system. In 1904, he patented

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7936-577: The Swiss government to commission Riggenbach to build the Vitznau-Rigi-Bahn on Mount Rigi , which opened on May 21, 1871. Initially, there was no way for two trains to pass one another on the Mount Washington Cog Railway. In 1941, a nine-motion switch was invented, and two spur sidings were added, each long enough to divert two descending trains so that climbing trains could continue to

8064-565: The Swiss government. Eager to boost tourism in Switzerland, the government commissioned Riggenbach to build a rack railway up Mount Rigi . Following the construction of a prototype locomotive and test track in a quarry near Bern , the Vitznau–Rigi railway opened on 22 May 1871. The Riggenbach system is similar in design to the Marsh system. It uses a ladder rack, formed of steel plates or channels connected by round or square rods at regular intervals. The Riggenbach system suffers from

8192-628: The United States, the Chicago Tunnel Company , a narrow gauge freight carrier that had one steep grade in the line up to their surface disposal station on the Chicago lakefront. The Lamella system (also known as the Von Roll system) was developed by the Von Roll company after the rolled steel rails used in the Strub system became unavailable. It is formed from a single blade cut in a similar shape to

8320-437: The board ("alumni trustees"). The nominees for alumni trustee are determined by a poll of the members of the Association of Alumni of Dartmouth College, selecting from among names put forward by the Alumni Council or by alumni petition. Although the board elected its members from the two sources of nominees in equal proportions between 1891 and 2007, the board decided in 2007 to add several new members, all charter trustees. In

8448-401: The boiler pressure, leading to a catastrophic failure. On rack systems with extreme gradients, the boiler, cab, and general superstructure of the locomotive are tilted forward relative to the wheels so that they are more or less horizontal when on the steeply graded track. These locomotives often cannot function on level track, and so the entire line, including maintenance shops, must be laid on

8576-400: The centre rail, as well as by means of the normal running wheels. The first successful rack railway in the United States was the Mount Washington Cog Railway, developed by Sylvester Marsh . Marsh was issued a U.S. patent for the general idea of a rack railway in September 1861, and in January 1867 for a practical rack where the rack teeth take the form of rollers arranged like the rungs of

8704-434: The college' charter to make the school a public university. An institution called Dartmouth University occupied the college buildings and began operating in Hanover in 1817, though the college continued teaching classes in rented rooms nearby. Daniel Webster , an alumnus of the class of 1801, presented the college's case to the Supreme Court , which found the amendment of Dartmouth's charter to be an illegal impairment of

8832-403: The construction of turnouts. If the rack is elevated above the running rails, there is no need to interrupt the running rails to allow passage of the driving pinions of the engines. Strub explicitly documented this in his U.S. patent. Strub used a complex set of bell-cranks and push-rods linking the throw-rod for the points to the two throw-rods for the moving rack sections. One break in the rack

8960-474: The controversy that followed the decision, the Association of Alumni filed a lawsuit, although it later withdrew the action. In 2008, the board added five new charter trustees. This is what a college is supposed to look like. —U.S. President Dwight D. Eisenhower , 1953 Dartmouth College is situated in the rural town of Hanover, New Hampshire , located in the Upper Valley along the Connecticut River in New England . Its 269-acre (1.09 km ) campus

9088-422: The country that also had "some graduate coexistence" and "very high research activity". Undergraduate admission to Dartmouth College is characterized by the Carnegie Foundation and U.S. News & World Report as "most selective". The Princeton Review , in its 2024 edition, gave the university an admissions selectivity rating of 99 out of 99. For the freshman class entering Fall 2023, Dartmouth received

9216-436: The demonstrated need of every admitted student who applies for financial aid at the time of admission. Dartmouth is one of seven American universities to practice international need-blind admissions. This means that all applicants, including U.S. permanent residents, undocumented students in the U.S., and international students, are admitted to the college without regard to their financial circumstances. At Dartmouth, free tuition

9344-443: The design of the rack was changed so that the old braking mechanism could no longer grip. The railway has taken more than five million people to the summit during its existence; there have been two incidents resulting in fatalities. The first major accident occurred on July 20, 1929, involving locomotive no.   1, known as Old Peppersass . This locomotive was used to build the railway, and operated until retirement in 1878. After

9472-540: The design was attempting the impossible – but benefits were guaranteed. He was putting up $ 5,000 of his own money, and that, plus whatever else he could raise, would be spent locally, including building the Fabyan House hotel at nearby Fabyan Station to accommodate the expected tourists. The railway is sometimes called "Railway to the Moon", because one state legislator remarked during the proceedings that Marsh should be given

9600-403: The down-mountain end. The average time for the descent of the mountain using these boards was about 15 minutes. The record was 2:45, an average speed above 62 mph (100 km/h). The "Devil's shingles" were banned in 1908 after the accidental death of an employee. However, that did not stop workers, and there are sources claiming the shingles were used by some up until the 1920s. Later,

9728-403: The early 1880s, Abt worked to devise an improved rack system that overcame the limitations of the Riggenbach system. In particular, the Riggenbach rack was expensive to manufacture and maintain and the switches were complex. In 1882, Abt designed a new rack using solid bars with vertical teeth machined into them. Two or three of these bars are mounted centrally between the rails, with the teeth of

9856-471: The engine plunged off the trestle. The locomotive broke into pieces, but the boiler did not rupture, and the pieces were later reassembled to reconstruct the locomotive for static display. It is now located at the railway's base station. On September 17, 1967, eight passengers were killed and 72 injured when locomotive no.   3 derailed at the Skyline switch, about a mile below the summit. The engine rolled off

9984-406: The fall, winter, and spring terms of their freshman year and two terms of their senior year, as well as the summer term of their sophomore year. However, students may petition to alter this plan so that they may be off during terms of their senior year or sophomore summer terms. During all terms, students are permitted to choose between studying on-campus, studying at an off-campus program, or taking

10112-407: The first diesel locomotive to be powered with biodiesel, with the assistance of a retired mechanical engineer from the Portsmouth Naval Shipyard . By 2019, the railway completed the construction of seven of these locomotives. In 2014, work began on another switch and siding at the summit of Mount Washington, to allow trains to pass one another at the summit of the mountain. The most common trips on

10240-854: The grade of A− from the Sustainable Endowments Institute on its College Sustainability Report Card 2008. A notable feature of the Dartmouth campus is its many trees which (despite Dutch elm disease ) include some 200 American elms . The campus also has the largest Kentucky coffeetree in New Hampshire, at 91 ft tall. While Dartmouth's campus is located in a rural setting, it is connected to several major cities by intercity bus services that directly serve Dartmouth and Hanover. Dartmouth Coach provides service from Hanover to South Station and Logan International Airport in Boston as well as New York City , while Greyhound Lines operates

10368-496: The graduating class of 2017, the most popular majors were economics, government, computer science, engineering sciences, and history. The Economics Department, whose prominent professors include David Blanchflower , Andrew Samwick , and Diego Comin , among others, also holds the distinction as the top-ranked bachelor's-only economics program in the world. The Government Department similarly includes numerous eminent faculty members, such as Stephen Brooks and William Wohlforth , and

10496-564: The heat of summer in Washington, D.C. During his tour he rode the cog railway to the top of Mount Washington. The Cog has been in continuous operation since 1869, with service interruptions only during the World Wars. After Marsh died in 1884, control of the Cog passed to the Concord & Montreal Railroad , which ran it until 1889 when the Boston & Maine Railroad took over. From 1868 to 1910,

10624-529: The host member of the University Press of New England , a university press founded in 1970 that included Brandeis University , Tufts University , the University of New Hampshire , and Northeastern University . The University Press of New England shut down in 2018. With the exception of Dartmouth College Press titles, in 2021, Brandeis become the sole owner of all copyrights and titles of UPNE. Dartmouth

10752-649: The late 19th century. Since the election of a number of petition-nominated trustees to the Board of Trustees starting in 2004, the role of alumni in Dartmouth governance has been the subject of ongoing conflict. President James Wright announced his retirement in February 2008 and was replaced by Harvard University professor and physician Jim Yong Kim on July 1, 2009. Kim was succeeded by Philip J. Hanlon in June 2013 and Sian Leah Beilock in June 2023. In May 2010 Dartmouth joined

10880-533: The length of time that passengers could spend at the summit of Mount Washington. Each three-mile (4.8 km) diesel locomotive ride burns approximately 18 US gallons (15 imp gal; 68 L) of B20 (20% biodiesel blend) fuel. The locomotives push passenger cars that have a capacity of 70 riders. The Cog Railway also rosters eight wooden coaches. 44°16′26″N 71°19′55″W  /  44.27389°N 71.33194°W  / 44.27389; -71.33194 Rack railway The first mountain cog railway

11008-520: The limited success of the Charity School, however, Wheelock intended his new college as one primarily for whites. Occom, disappointed with Wheelock's departure from the school's original goal of Indian Christianization , went on to form his own community of New England Indians called Brothertown Indians in New York. In 1819, Dartmouth College was the subject of the historic Dartmouth College case , which challenged New Hampshire 's 1816 attempt to amend

11136-601: The locomotives were fired with wood. In 1910, the railway converted to using coal for all its locomotives. Henry N. Teague, a hotel executive, bought the Cog in 1931. Known as Col. Teague, an honorary title, he died in October 1951. Operational control passed to Arthur S. Teague, who had become vice president and general manager of the railway prior to his service in World War II, while ownership passed to Dartmouth College , Henry N. Teague's alma mater. The younger Teague, who actually

11264-413: The most common rack system in Switzerland at the time – was limited to a maximum gradient of 1 in 4 (25%). Locher showed that on steeper grade, the Abt system was prone to the driving pinion over-riding the rack, causing potentially catastrophic derailments, as predicted by Dr. Abt. To overcome this problem and allow a rack line up the steep sides of Mt. Pilatus , Locher developed a rack system where

11392-461: The mountain's summit peak of 6,288 feet (1,917 m). The train ascends the mountain at 2.8 miles per hour (4.5 km/h) and descends at 4.6 mph (7.4 km/h). Steam locomotives take approximately 65 minutes to ascend and 40 minutes to descend, while the biodiesel engines can go up in as little as 36 minutes. Most of the Mount Washington Cog Railway is in Thompson and Meserve's Purchase , with

11520-435: The next train in order to expose their buttocks to the passengers, a practice known as " Mooning the Cog ." Several hikers were arrested for performing this act in 2007. The railway was in operation before these trails existed and they cross railroad property. Access to the base station by car is by three routes, each culminating with the upper portion of the dead-end Cog Base Road. The advertised, roughly eastbound route uses

11648-496: The number of students has also increased and the D-Plan remains in effect. It was modified in the 1980s in an attempt to reduce the problems of lack of social and academic continuity. Dartmouth is governed by a board of trustees comprising the college president ( ex officio ), the state governor ( ex officio ), 13 trustees nominated and elected by the board (called "charter trustees"), and eight trustees nominated by alumni and elected by

11776-485: The original group, which had purchased the railway in 1983. Presby assumed direct management control of the railway in December 2017. In 2021, the railway completed two of the largest improvement projects in its history. The existing 25 lb/yd (12.4 kg/m) rail was replaced with 100 lb/yd (49.6 kg/m) rail and a new 34,000 sq ft (3,159 m) maintenance facility was completed. The new facility enabled

11904-509: The part of the railway nearest to Mount Washington's summit being in Sargent's Purchase . The railway was built by Sylvester Marsh who grew up in Campton . Marsh came up with the idea while climbing the mountain in 1852. His plan was treated as insane. Local tradition says that the state legislature voted permission based on a consensus that harm resulting from operating it was no issue – since

12032-414: The pinions rotationally offset from each other to match. The use of multiple bars with offset teeth ensures that the pinions on the locomotive driving wheels are constantly engaged with the rack. The Abt system is cheaper to build than the Riggenbach because it requires a lower weight of rack over a given length. However the Riggenbach system exhibits greater wear resistance than the Abt. The first use of

12160-509: The possibility of the pinions riding up and out of the rack. The Riggenbach rack system was invented by Niklaus Riggenbach working at about the same time as, but independently from Marsh. Riggenbach was granted a French patent in 1863 based on a working model which he used to interest potential Swiss backers. During this time, the Swiss Consul to the United States visited Marsh's Mount Washington Cog Railway and reported back with enthusiasm to

12288-713: The problem that its fixed ladder rack is more complex and expensive to build than the other systems. Following the success of the Vitznau–Rigi railway, Riggenbach established the Maschinenfabrik der Internationalen Gesellschaft für Bergbahnen (IGB) – a company that produced rack locomotives to his design. The Abt system was devised by Carl Roman Abt , a Swiss locomotive engineer. Abt worked for Riggenbach at his works in Olten and later at his IGB rack locomotive company. In 1885, he founded his own civil engineering company. During

12416-430: The project was led by over 1700 alumnae as part of the celebration of 50 years of coeducation at Dartmouth College. Dartmouth, a liberal arts institution, offers a four-year Bachelor of Arts and ABET-accredited Bachelor of Engineering degree to undergraduate students. The college has 39 academic departments offering 56 major programs , while students are free to design special majors or engage in dual majors. For

12544-556: The rack for driving (with the conventional rail wheels undriven) such as the Dolderbahn in Zürich , Štrbské Pleso in Slovakia and the Schynige Platte rack railway instead must switch the rack rail. The Dolderbahn switch works by bending all three rails, an operation that is performed every trip as the two trains pass in the middle. The geometry of the rack system has a large impact on

12672-470: The rack is a flat bar with symmetrical, horizontal teeth. Horizontal pinions with flanges below the rack engage the centrally-mounted bar, both driving the locomotive and keeping it centered on the track. This system provides very stable attachment to the track, also protecting the car from toppling over even under the most severe crosswinds. Such gears are also capable of leading the car, so even flanges on running wheels are optional. The biggest shortcoming of

12800-418: The rack rail is continuous or not. Lines where the rack rail is continuous, and the cog-drive is used throughout, are described as pure-rack lines. Other lines, which use the cog drive only on the steepest sections and elsewhere operate as a regular railway, are described as rack-and-adhesion lines. On rack-and-adhesion lines, trains are equipped with propulsion and braking systems capable of acting both through

12928-401: The rack rail solidly. Some locomotives are fitted with automatic brakes that apply if the speed gets too high, preventing runaways. Often there is no coupler between locomotive and train since gravity will always push the passenger car down against the locomotive. Electrically powered vehicles often have electromagnetic track brakes as well. The maximum speed of trains operating on a cog railway

13056-565: The rack railways built from the late 20th century onwards have used the Lamella system. Rack railway switches are as varied as rack railway technologies, for optional rack lines such as the Zentralbahn in Switzerland and the West Coast Wilderness Railway in Tasmania it is convenient to only use switches on sections flat enough for adhesion (for example, on a pass summit). Other systems which rely on

13184-413: The railroad staff. Since 2008, four more diesels were completed (M-2 and M-3 in 2009, M-4 in 2011, and M-5 in 2013). All the new diesel hydraulic locomotives are operated on B20 (20% biodiesel blend) during the summer season. The company stated that the primary reason the new diesels were built was to reduce the visual pollution caused by the coal-fired steam locomotives, to lower emissions, and to increase

13312-643: The railway to resume winter operations in 2020. During the winter, the railway operates its trains to Waumbek Station at an elevation of approximately 3,800 feet (1,158 m). In the early days of the railway's construction, the workers wanted to minimize time when climbing and descending the ramp, so they invented slideboards fitting over the cog rack and providing enough room for themselves and their tools. These boards – no two were exactly alike – were approximately 35 in (90 cm) long by 9.8 in (25 cm) wide, made of wood with hand-forged iron and with two long, hardwood handles usually attached at

13440-445: The running rail wheels and the cog wheels, depending on whether the rack rail is present or not. Rack-and-adhesion lines also need to use a system for smoothing the transition from friction to rack traction, with a spring-mounted rack section to bring the pinion teeth gradually into engagement. This was invented by Roman Abt, who also invented the Abt rack system. On pure-rack lines, the train's running rail wheels are only used to carry

13568-414: The state." Each three-mile (4.8 km) steam locomotive ride burns 1 short ton (0.89 long tons ; 0.91  t ) of coal and consumes 1,000 US gallons (830 imp gal; 3,800 L) of water. One steam locomotive was converted to oil-firing in 2008. The attempt to oil-fire the existing steam locomotives failed, and in 2008 the railway introduced its first diesel locomotive, designed and built by

13696-443: The summit, enabling more round trips per day. In 2004, work was completed replacing the lower Waumbek Switch and Siding with an 1,800-foot (550 m) passing loop equipped with electric and hydraulically powered automated switches. These switches are powered by batteries and recharged by solar panels . One switch is located at each end of the loop, allowing ascending and descending trains to pass one another. In 2008, work began on

13824-531: The system is that the standard railway switch is not usable, and a transfer table or other complex device must be used where branching of the track is needed. Following tests, the Locher system was deployed on the Pilatus Railway, which opened in 1889. No other public railway uses the Locher system, although some European coal mines use a similar system on steeply graded underground lines. The Strub rack system

13952-461: The time; the boilers were mounted to the locomotives' frames with twin trunnions , allowing them to pivot as the locomotive and coach climbed the grade, permitting gravity to always keep the boiler vertically oriented, no matter what the gradient of the track. Later designs introduced horizontal boilers, slanted so that they remain close to horizontal on the steeply graded track. In August 1869, President Ulysses S. Grant visited New England to escape

14080-405: The track and collided with an ascending passenger train carrying 24 people. The cog railway designs and builds all of its locomotives and passenger coaches at the company shops located at the base of Mount Washington. Each train consists of a locomotive pushing a single passenger car up the mountain, descending the mountain by going in reverse. Both locomotive and car were originally equipped with

14208-424: The train and do not contribute to propulsion or braking, which is exclusively done through the cog wheels. Pure-rack lines have no need of transitioning systems, as the cog wheels remain engaged with the rack rail at all times, but all track, including sidings and depots, must be equipped with rack rail irrespective of gradient. A number of different designs of rack rail and matching cog wheel have been developed over

14336-435: The trestle while the uncoupled passenger car slid several hundred feet into a large rock. An investigation revealed that the Skyline switch had not been properly configured for the descending train. A brakeman now watches for safety hazards from the leading end platform of the passenger car. A non-fatal incident on August 10, 1946, injured 22 people. A flatcar , initially at rest near the summit, sped 600 feet (180 m) down

14464-432: The undergraduate department of engineering sciences—and Tuck School of Business (1900). With these professional schools and graduate programs, conventional American usage would accord Dartmouth the label of "Dartmouth University"; however, because of historical and nostalgic reasons (such as Dartmouth College v. Woodward ), the school uses the name "Dartmouth College" to refer to the entire institution. Dartmouth employs

14592-711: The undergraduate faculty of arts and sciences, Dartmouth has four professional and graduate schools: the Geisel School of Medicine , the Thayer School of Engineering , the Tuck School of Business , and the Guarini School of Graduate and Advanced Studies. The university also has affiliations with the Dartmouth–Hitchcock Medical Center . Dartmouth is home to the Rockefeller Center for Public Policy and

14720-470: The years. With the exception of some early Morgan and Blenkinsop rack installations, rack systems place the rack rail halfway between the running rails, mounted on the same sleepers or ties as the running rails. John Blenkinsop thought that the friction would be too low from metal wheels on metal rails even on level ground, so he built his steam locomotives for the Middleton Railway in 1812 with

14848-452: Was a colonel and was highly decorated during his military service, was a protégé of the elder Teague, but the two were not related. Arthur S. Teague bought the railway from Dartmouth in 1962. After he died in 1967, ownership of the railway passed to his wife, Ellen Crawford Teague, who ran the Cog as the world's first woman president of a railway. In 1983, Mrs. Teague sold the railway to a group of New Hampshire businessmen. From 1986 to 2017,

14976-484: Was converted to use the Strub rack system in 1934. The Locher rack system, invented by Eduard Locher , has gear teeth cut in the sides rather than the top of the rail, engaged by two cog wheels on the locomotive. This system allows use on steeper grades than the other systems, whose teeth could jump out of the rack. It is used on the Pilatus Railway . Locher set out to design a rack system that could be used on gradients as steep as 1 in 2 (50%). The Abt system –

15104-440: Was directed by Dartmouth's president. The new college was moved to Durham, New Hampshire , in 1891, and later became known as the University of New Hampshire . Dartmouth emerged onto the national academic stage at the turn of the 20th century. Prior to this period, the college had clung to traditional methods of instruction and was relatively poorly funded. Under President William Jewett Tucker (1893–1909), Dartmouth underwent

15232-569: Was elected to the Association of American Universities (AAU). In April 2022, Dartmouth College returned the papers of Samson Occom, who helped Eleazar Wheelock secure the funds for Dartmouth College for what Occom believed would be a school for Native students in Connecticut, to the Mohegan Tribe . In November 2022, Dartmouth Hall was rededicated after a $ 42 million renovation. Fundraising for

15360-460: Was far from tribal territories. In seeking to expand the school into a college, Wheelock relocated it to Hanover, in the Province of New Hampshire . The move from Connecticut followed a lengthy and sometimes frustrating effort to find resources and secure a charter. The Royal Governor of New Hampshire, John Wentworth , provided the land upon which Dartmouth would be built and on December 13, 1769, issued

15488-444: Was found to be sufficient for railroads operating on level ground. The Fell mountain railway system, developed in the 1860s, is not strictly speaking a rack railway, since there are no cogs with teeth. Rather, this system uses a smooth raised centre rail between the two running rails on steep sections of lines that is gripped on both sides to improve friction. Trains are propelled by wheels or braked by shoes pressed horizontally onto

15616-606: Was founded by Eleazar Wheelock , a Yale graduate and Congregational minister from Windham, Connecticut , who had sought to establish a school to train Native Americans as Christian missionaries. It was one of the nine colonial colleges chartered before the American Revolution . Wheelock's ostensible inspiration for such an establishment resulted from his relationship with Mohegan Indian Samson Occom . Occom became an ordained minister after studying under Wheelock from 1743 to 1747, and later moved to Long Island to preach to

15744-488: Was included to connect Dartmouth to the Charity School and enable the use of the Charity School's unspent trust funds. Named for William Legge, 2nd Earl of Dartmouth – an important supporter of Eleazar Wheelock's earlier efforts but who, in fact, opposed creation of the college and never donated to it – Dartmouth is the nation's ninth oldest college and the last institution of higher learning established under colonial rule. The college granted its first degrees in 1771. Given

15872-433: Was invented by Emil Strub in 1896. It uses a rolled flat-bottom rail with rack teeth machined into the head approximately 100 mm (3.9 inches) apart. Safety jaws fitted to the locomotive engage with the underside of the head to prevent derailments and serve as a brake. Strub's U.S. patent, granted in 1898, also includes details of how the rack rail is integrated with the mechanism of a turnout . The best-known use of

16000-734: Was not until 1941 that a turnout was constructed on this line. There were more turnouts built for the line but all were hand operated. In 2003, a new automatic hydraulic turnout was developed and built at the base as a prototype. With the success of the new turnout, more new automatic hydraulic turnouts were built to replace the hand-operated ones. The new turnouts installed on the Mount Washington line in 2007 are essentially transfer tables . The Locher rack also requires transfer tables. Originally almost all cog railways were powered by steam locomotives . The steam locomotive needs to be extensively modified to work effectively in this environment. Unlike

16128-412: Was ranked 12th among undergraduate programs at national universities by U.S. News & World Report in its 2022 rankings. U.S. News also ranked the school 3rd best for veterans, tied for 5th best in undergraduate teaching, and 7th for "best value" national universities. Dartmouth's undergraduate teaching was previously ranked 1st by U.S. News for five years in a row (2009–2013). Dartmouth College

16256-460: Was required to select between the two routes, and a second break was required where the rack rails cross the running rails. Turnouts for the Morgan Rack system were similar, with the rack elevated above the running rails. Most of the Morgan turnout patents included movable rack sections to avoid breaks in the rack, but because all Morgan locomotives had two linked drive pinions, there was no need for

16384-562: Was the Mount Washington Cog Railway in the U.S. state of New Hampshire , which carried its first fare-paying passengers in 1868. The track was completed to reach the summit of Mount Washington in 1869. The first mountain rack railway in continental Europe was the Vitznau-Rigi-Bahn on Mount Rigi in Switzerland , which opened in 1871. Both lines are still running. As well as the rack system used, lines using rack systems fall into one of two categories depending on whether

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