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64-405: The Perkins Brailler is a "braille typewriter" with a key corresponding to each of the six dots of the braille code, a space key, a backspace key, and a line space key. Like a manual typewriter , it has two side knobs to advance paper through the machine and a carriage return lever above the keys. The rollers that hold and advance the paper have grooves designed to avoid crushing the raised dots

128-415: A birth certificate , court order , etc., is an authentic, original copy, rather than a photocopy that could be altered in the copying process. Embossing has been used regularly on postage and other types of stamps. The embossed paper of a letter sheet or stamped envelope is called an indicium . Notable early examples include some of the earliest stamps of Italy, Natal , and Switzerland, as well as

192-400: A braille embosser (printer) or a refreshable braille display (screen). Braille has been extended to an 8-dot code , particularly for use with braille embossers and refreshable braille displays. In 8-dot braille the additional dots are added at the bottom of the cell, giving a matrix 4 dots high by 2 dots wide. The additional dots are given the numbers 7 (for the lower-left dot) and 8 (for

256-526: A word space . Dot configurations can be used to represent a letter, digit, punctuation mark, or even a word. Early braille education is crucial to literacy, education and employment among the blind. Despite the evolution of new technologies, including screen reader software that reads information aloud, braille provides blind people with access to spelling, punctuation and other aspects of written language less accessible through audio alone. While some have suggested that audio-based technologies will decrease

320-475: A Frenchman who lost his sight as a result of a childhood accident. In 1824, at the age of fifteen, he developed the braille code based on the French alphabet as an improvement on night writing . He published his system, which subsequently included musical notation , in 1829. The second revision, published in 1837, was the first binary form of writing developed in the modern era. Braille characters are formed using

384-638: A combination of six raised dots arranged in a 3 × 2 matrix, called the braille cell. The number and arrangement of these dots distinguishes one character from another. Since the various braille alphabets originated as transcription codes for printed writing, the mappings (sets of character designations) vary from language to language, and even within one; in English braille there are three levels: uncontracted  – a letter-by-letter transcription used for basic literacy; contracted  – an addition of abbreviations and contractions used as

448-408: A foil emboss. A sculptured die, generally made of brass is used for this procedure. The process requires close registration that must be controlled to keep the image and foil matched precisely. The process of embossing and foil stamping is accomplished in one operation with the use of a combination die. The combination die has a cutting edge around the perimeter to cleanly break the excess foil away from

512-459: A greater number of symbols. (See Gardner–Salinas braille codes .) Luxembourgish Braille has adopted eight-dot cells for general use; for example, accented letters take the unaccented versions plus dot 8. Braille was the first writing system with binary encoding . The system as devised by Braille consists of two parts: Within an individual cell, the dot positions are arranged in two columns of three positions. A raised dot can appear in any of

576-528: A line-feed key, and using a clock-like escapement to move an embossing carriage over the paper. A system of six cams consisting of rods with a square cross-section transfers keystrokes to the wire-like styli contained in the carriage. Tolerances are close, and the buildup of oily dirt with normal use necessitates periodic cleaning and adjustment. A new version of the Perkins Brailler, the SMART Brailler,

640-405: A maximum of 42 cells per line (its margins are adjustable), and typical paper allows 25 lines per page. A large interlining Stainsby has 36 cells per line and 18 lines per page. An A4-sized Marburg braille frame, which allows interpoint braille (dots on both sides of the page, offset so they do not interfere with each other), has 30 cells per line and 27 lines per page. A Braille writing machine

704-523: A one or two-line refreshable braille display consisting of tiny pins made of metal and plastic. Notetakers include PDA features such as an address book and calculator. Because of the many moving parts and the accessibility of the refreshable braille displays to the environment, notetakers are typically quite expensive. They are easily damaged and must be returned to their country of origin for periodic cleaning. Braille Braille ( / ˈ b r eɪ l / BRAYL , French: [bʁɑj] )

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768-404: A shiny or polished appearance. Most often this process is accomplished with heat that is applied with pressure in order to create a shiny impression on the stock. Dark colored heavy weight stocks generally work best with glazing because the polished effect is much more noticeable and the dark color of the stock helps to eliminate or soften any burned appearance that may result from the application of

832-611: A space-saving mechanism; and grade 3  – various non-standardized personal stenographies that are less commonly used. In addition to braille text (letters, punctuation, contractions), it is also possible to create embossed illustrations and graphs, with the lines either solid or made of series of dots, arrows, and bullets that are larger than braille dots. A full braille cell includes six raised dots arranged in two columns, each column having three dots. The dot positions are identified by numbers from one to six. There are 64 possible combinations, including no dots at all for

896-435: A specific application depends upon a number of factors. Blind embossing does not include the use of ink or foil to highlight the embossed area. The change in the dimensional appearance of the material is the only noticeable difference resulting from the embossing. The blind embossing process provides a clean and distinctive or subtle image on paper stock. It is best used to create a subtle impression or low level of attention to

960-408: A system can use a computer keyboard in the standard way for typing or can use a special keyboard driver that allows the six keys sdf-jkl to be used as a braille entry device similar to the Perkins Brailler. Many visually impaired users use electronic portable note-taking devices that allow keyboard entry in braille using the 6-key layout of the Perkins Brailler and output in synthesized speech and/or

1024-601: A system much more like shorthand. Today, there are braille codes for over 133 languages. In English, some variations in the braille codes have traditionally existed among English-speaking countries. In 1991, work to standardize the braille codes used in the English-speaking world began. Unified English Braille (UEB) has been adopted in all seven member countries of the International Council on English Braille (ICEB) as well as Nigeria. For blind readers, braille

1088-469: A text interfered with following the alignment of the letters, and consequently made texts more difficult to read than Braille's more arbitrary letter assignment. Finally, there are braille scripts that do not order the codes numerically at all, such as Japanese Braille and Korean Braille , which are based on more abstract principles of syllable composition. Texts are sometimes written in a script of eight dots per cell rather than six, enabling them to encode

1152-436: Is a tactile writing system used by people who are visually impaired . It can be read either on embossed paper or by using refreshable braille displays that connect to computers and smartphone devices. Braille can be written using a slate and stylus , a braille writer , an electronic braille notetaker or with the use of a computer connected to a braille embosser . Braille is named after its creator, Louis Braille ,

1216-592: Is a typewriter with six keys that allows the user to write braille on a regular hard copy page. The first Braille typewriter to gain general acceptance was invented by Frank Haven Hall (Superintendent of the Illinois School for the Blind ), and was presented to the public in 1892. The Stainsby Brailler, developed by Henry Stainsby in 1903, is a mechanical writer with a sliding carriage that moves over an aluminium plate as it embosses Braille characters. An improved version

1280-517: Is an independent writing system, rather than a code of printed orthography. Braille is derived from the Latin alphabet, albeit indirectly. In Braille's original system, the dot patterns were assigned to letters according to their position within the alphabetic order of the French alphabet of the time, with accented letters and w sorted at the end. Unlike print, which consists of mostly arbitrary symbols,

1344-444: Is an off-line process, which may add a significant cost to the job. Embossing is basically used to create a distinctive effect. The greatest concern and emphasis on the client's behalf should be placed on the outcome of the embossed effect. In order to achieve the best possible effect, it is important to understand the embossing process and the types of dies that are used for embossing. The three factors that need to be controlled during

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1408-480: Is best to use a lighter colored stock for this procedure in order to provide a unique two-toned appearance. Caution should be used in requesting this effect, since it is easy to burn the stock if too much heat is used. If scorching occurs too close to the printed copy, it can interfere with the clarity of the printed copy; however, this may be the effect that is desired for a particular application. A notary public may use an embossed seal to mark legal papers, either in

1472-530: Is dot 5, which combines with the first letter of words. With the letter ⠍ m , the resulting word is ⠐ ⠍ mother . There are also ligatures ("contracted" letters), which are single letters in braille but correspond to more than one letter in print. The letter ⠯ and , for example, is used to write words with the sequence a-n-d in them, such as ⠛ ⠗ ⠯ grand . Most braille embossers support between 34 and 40 cells per line, and 25 lines per page. A manually operated Perkins braille typewriter supports

1536-399: Is extended by adding the decade dots, whereas in the fifth decade it is extended by shifting it downward. Originally there had been nine decades. The fifth through ninth used dashes as well as dots, but they proved to be impractical to distinguish by touch under normal conditions and were soon abandoned. From the beginning, these additional decades could be substituted with what we now know as

1600-406: Is raised and one that is recessed. The dies fit into each other so that when the paper is pressed between them, the raised die forces the stock into the recessed die and creates the embossed impression. A specific level of pressure is applied to the dies in order to squeeze the fibers of the paper, which results in a permanently raised area in the paper. When the dies are produced, a die maker engraves

1664-555: Is read as capital 'A', and ⠼ ⠁ as the digit '1'. Basic punctuation marks in English Braille include: ⠦ is both the question mark and the opening quotation mark. Its reading depends on whether it occurs before a word or after. ⠶ is used for both opening and closing parentheses. Its placement relative to spaces and other characters determines its interpretation. Punctuation varies from language to language. For example, French Braille uses ⠢ for its question mark and swaps

1728-453: The slate and stylus is a portable writing tool, much like the pen and paper for the sighted. Errors can be erased using a braille eraser or can be overwritten with all six dots ( ⠿ ). Interpoint refers to braille printing that is offset, so that the paper can be embossed on both sides, with the dots on one side appearing between the divots that form the dots on the other. Using a computer or other electronic device, Braille may be produced with

1792-422: The French order of the decade was u v x y z ç é à è ù ( ⠥ ⠧ ⠭ ⠽ ⠵ ⠯ ⠿ ⠷ ⠮ ⠾ ). The next ten letters, ending in w , are the same again, except that for this series position 6 (purple dot in the bottom right corner of the cell in the table above) is used without a dot at position 3. In French braille these are the letters â ê î ô û ë ï ü œ w ( ⠡ ⠣ ⠩ ⠹ ⠱ ⠫ ⠻ ⠳ ⠪ ⠺ ). W had been tacked onto

1856-448: The SMART Brailler includes multi-lingual speech and Braille support, including English, UK English, Arabic, French, German, Italian, Portuguese, Polish, Russian, and Turkish. With the advent of computers, many users create braille output using a computer and a braille embosser connected to the computer. Visually impaired users can read the computer screen by using screen reader computer software and/or braille displays . Users of such

1920-465: The addition of a dot at position 3 (red dots in the bottom left corners of the cells in the table below): ⠅ ⠇ ⠍ ⠝ ⠕ ⠏ ⠟ ⠗ ⠎ ⠞ : The next ten letters (the next " decade ") are the same again, but with dots also at both position 3 and position 6 (green dots in the bottom rows of the cells in the table above). Here w was left out as it was not part of the official French alphabet in Braille's time;

1984-401: The alphabet – thus the code was unable to render the orthography of the words. Second, the 12-dot symbols could not easily fit beneath the pad of the reading finger. This required the reading finger to move in order to perceive the whole symbol, which slowed the reading process. (This was because Barbier's system was based only on the number of dots in each of two 6-dot columns, not

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2048-460: The braille alphabet follows a logical sequence. The first ten letters of the alphabet, a – j , use the upper four dot positions: ⠁ ⠃ ⠉ ⠙ ⠑ ⠋ ⠛ ⠓ ⠊ ⠚ (black dots in the table below). These stand for the ten digits 1 – 9 and 0 in an alphabetic numeral system similar to Greek numerals (as well as derivations of it, including Hebrew numerals , Cyrillic numerals , Abjad numerals , also Hebrew gematria and Greek isopsephy ). Though

2112-546: The braille letters according to the sort order of the print alphabet being transcribed; and reassigning the letters to improve the efficiency of writing in braille. Under international consensus, most braille alphabets follow the French sorting order for the 26 letters of the basic Latin alphabet , and there have been attempts at unifying the letters beyond these 26 (see international braille ), though differences remain, for example, in German Braille . This unification avoids

2176-408: The brailler creates. Although braille notation was designed for people who are blind or visually impaired to read, prior to the introduction of the Perkins Brailler, writing braille was a cumbersome process. Braille writers created braille characters with a stylus and slate (as developed by Louis Braille ) or by using one of the complex, expensive, and fragile braille writing machines available at

2240-540: The chaos of each nation reordering the braille code to match the sorting order of its print alphabet, as happened in Algerian Braille , where braille codes were numerically reassigned to match the order of the Arabic alphabet and bear little relation to the values used in other countries (compare modern Arabic Braille , which uses the French sorting order), and as happened in an early American version of English Braille, where

2304-423: The design rather than raising it. Rather than the paper being raised in specific areas, it is indented. The process involves applying pressure to the front side of a substrate and forcing the material down from the surface. Although it is not as common as embossing, it is occasionally used to provide a different effect or appearance that fits a particular theme. Embossing and debossing on digitally printed applications

2368-410: The desired image into several metal plates, which are the embossing dies for use on an embossing press. A thorough understanding of the process will enable a more successful result. Generally, embossing is the process most often employed to attract attention or convey a high quality textural contrast in relation to the surrounding area of the paper stock. "Debossing" is similar to embossing, but recesses

2432-399: The dots are assigned in no obvious order, the cells with the fewest dots are assigned to the first three letters (and lowest digits), abc = 123 ( ⠁ ⠃ ⠉ ), and to the three vowels in this part of the alphabet, aei ( ⠁ ⠑ ⠊ ), whereas the even digits 4 , 6 , 8 , 0 ( ⠙ ⠋ ⠓ ⠚ ) are right angles. The next ten letters, k – t , are identical to a – j respectively, apart from

2496-498: The embossed area. Pastelling is also referred to as tint leaf embossing. It involves the process of using a combination die to provide a subtle antique appearance to a substrate that is embossed and foil stamped. Pearl finishes, clear gloss, or similar pastel foil finishes can be selected that provide a soft two-color antique look (without scorching) to the embossed image. Lighter colored stocks work best to provide this soft contrasting effect. Glazing refers to an embossed area that has

2560-458: The embossing process are: Embossing involves a separate stage in the production process, after any varnishing and laminating. It requires a separate press run, and is priced accordingly. In addition to being used as a design element, embossing can be used to improve the performance of paper products like napkins, diapers, and tissue paper . The metals most often used for die construction are zinc, magnesium, copper, and brass. The material used for

2624-469: The end of 39 letters of the French alphabet to accommodate English. The a – j series shifted down by one dot space ( ⠂ ⠆ ⠒ ⠲ ⠢ ⠖ ⠶ ⠦ ⠔ ⠴ ) is used for punctuation. Letters a ⠁ and c ⠉ , which only use dots in the top row, were shifted two places for the apostrophe and hyphen: ⠄ ⠤ . (These are also the decade diacritics, on the left in the table below, of the second and third decade.) In addition, there are ten patterns that are based on

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2688-485: The first braille translator written in a portable programming language. DOTSYS III was developed for the Atlanta Public Schools as a public domain program. Paper embossing Often used in combination with foil stamping, embossing alters the surface of paper stock or other substrates by providing a three-dimensional or raised effect on selected areas. The procedure requires the use of two dies: one that

2752-462: The first two letters ( ⠁ ⠃ ) with their dots shifted to the right; these were assigned to non-French letters ( ì ä ò ⠌ ⠜ ⠬ ), or serve non-letter functions: ⠈ (superscript; in English the accent mark), ⠘ (currency prefix), ⠨ (capital, in English the decimal point ), ⠼ ( number sign ), ⠸ (emphasis mark), ⠐ (symbol prefix). The first four decades are similar in that the numeric sequence

2816-445: The form of an adhesive seal, or using a clamp-like embossing device, to certify a signature on a document, contract, etc., or cause to become certified through a notary public or bill. Registered professional engineers also use embossing seals to certify drawings, thereby guaranteeing to the recipient that due diligence has been exercised in the design. Government agencies use embossed seals to certify that an important document, such as

2880-435: The heat. When used in conjunction with foil, the process can provide the foil with a slightly brighter appearance. Scorching is similar to glazing except that it is not used to polish the stock. Instead, scorching does what it implies: as the temperature of the die heating plate is increased beyond a normal temperature range, a scorched effect is created in the embossed image, which results in an antique or shaded appearance. It

2944-507: The left column and at the top of the right column: that is, the letter ⠍ m . The lines of horizontal braille text are separated by a space, much like visible printed text, so that the dots of one line can be differentiated from the braille text above and below. Different assignments of braille codes (or code pages ) are used to map the character sets of different printed scripts to the six-bit cells. Braille assignments have also been created for mathematical and musical notation. However, because

3008-443: The letters w , x , y , z were reassigned to match English alphabetical order. A convention sometimes seen for letters beyond the basic 26 is to exploit the physical symmetry of braille patterns iconically, for example, by assigning a reversed n to ñ or an inverted s to sh . (See Hungarian Braille and Bharati Braille , which do this to some extent.) A third principle was to assign braille codes according to frequency, with

3072-514: The lower-right dot). Eight-dot braille has the advantages that the casing of each letter is coded in the cell and that every printable ASCII character can be encoded in a single cell. All 256 (2 ) possible combinations of 8 dots are encoded by the Unicode standard. Braille with six dots is frequently stored as Braille ASCII . The first 25 braille letters, up through the first half of the 3rd decade, transcribe a–z (skipping w ). In English Braille,

3136-408: The need for braille, technological advancements such as braille displays have continued to make braille more accessible and available. Braille users highlight that braille remains as essential as print is to the sighted. ⠏ ⠗ ⠑ ⠍ ⠊ ⠑ ⠗ Braille was based on a tactile code , now known as night writing , developed by Charles Barbier . (The name "night writing" was later given to it when it

3200-481: The number sign ( ⠼ ) applied to the earlier decades, though that only caught on for the digits (the old 5th decade being replaced by ⠼ applied to the 1st decade). The dash occupying the top row of the original sixth decade was simply omitted, producing the modern fifth decade. (See 1829 braille .) Historically, there have been three principles in assigning the values of a linear script (print) to Braille: Using Louis Braille's original French letter values; reassigning

3264-399: The on-screen braille input keyboard, to type braille symbols on to their device by placing their fingers on to the screen according to the dot configuration of the symbols they wish to form. These symbols are automatically translated into print on the screen. The different tools that exist for writing braille allow the braille user to select the method that is best for a given task. For example,

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3328-445: The pattern of the dots.) Third, the code did not include symbols for numerals or punctuation. Braille's solution was to use 6-dot cells and to assign a specific pattern to each letter of the alphabet. Braille also developed symbols for representing numerals and punctuation. At first, braille was a one-to-one transliteration of the French alphabet, but soon various abbreviations (contractions) and even logograms were developed, creating

3392-409: The piece, yet provide some slight form of differentiation for the finished work. Registered embossing is a process that places the embossed image in alignment with another element created with ink, foil, punching, or with a second embossed image. Combination embossing is the process of embossing and foil stamping the same image. It involves imprinting and aligning foil over an embossed image to create

3456-537: The quotation marks and parentheses (to ⠶ and ⠦ ⠴ ); it uses ( ⠲ ) for both the period and the decimal point, and the English decimal point ( ⠨ ) to mark capitalization. Braille contractions are words and affixes that are shortened so that they take up fewer cells. In English Braille, for example, the word afternoon is written with just three letters, ⠁ ⠋ ⠝ ⟨afn⟩ , much like stenoscript . There are also several abbreviation marks that create what are effectively logograms . The most common of these

3520-417: The rest of that decade is rounded out with the ligatures and, for, of, the, and with . Omitting dot 3 from these forms the 4th decade, the ligatures ch, gh, sh, th, wh, ed, er, ou, ow and the letter w . (See English Braille .) Various formatting marks affect the values of the letters that follow them. They have no direct equivalent in print. The most important in English Braille are: That is, ⠠ ⠁

3584-542: The simplest patterns (quickest ones to write with a stylus) assigned to the most frequent letters of the alphabet. Such frequency-based alphabets were used in Germany and the United States in the 19th century (see American Braille ), but with the invention of the braille typewriter their advantage disappeared, and none are attested in modern use – they had the disadvantage that the resulting small number of dots in

3648-414: The six positions, producing 64 (2 ) possible patterns, including one in which there are no raised dots. For reference purposes, a pattern is commonly described by listing the positions where dots are raised, the positions being universally numbered, from top to bottom, as 1 to 3 on the left and 4 to 6 on the right. For example, dot pattern 1-3-4 describes a cell with three dots raised, at the top and bottom in

3712-415: The six-dot braille cell allows only 64 (2 ) patterns, including space, the characters of a braille script commonly have multiple values, depending on their context. That is, character mapping between print and braille is not one-to-one. For example, the character ⠙ corresponds in print to both the letter d and the digit 4 . In addition to simple encoding, many braille alphabets use contractions to reduce

3776-404: The size of braille texts and to increase reading speed. (See Contracted braille .) Braille may be produced by hand using a slate and stylus in which each dot is created from the back of the page, writing in mirror image, or it may be produced on a braille typewriter or Perkins Brailler , or an electronic Brailler or braille notetaker. Braille users with access to smartphones may also activate

3840-643: The time. The first Braille writer machine was presented by Frank Haven Hall in 1892. The original Perkins Brailler was produced in 1951 by David Abraham (1896–1978), a woodworking teacher at the Perkins School for the Blind that was dissatisfied with problems of the existing technology. The director of the Perkins School for the Blind, Gabriel Farrell , asked Abraham to create an inexpensive and reliable machine to allow students to more easily write braille. Farrell and Abraham worked with Edward Waterhouse, who

3904-509: Was a math teacher at Perkins, to create the design for the Brailler. In 2008, a lighter and quieter version was developed and launched. It also includes an erase key and an integrated carrying handle. The new model won the Silver Award in the 2009 International Design Excellence Awards. The paper placement is achieved by rolling the paper onto an internal drum, unrolling it when the user presses

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3968-454: Was considered as a means for soldiers to communicate silently at night and without a light source, but Barbier's writings do not use this term and suggest that it was originally designed as a simpler form of writing and for the visually impaired.) In Barbier's system, sets of 12 embossed dots were used to encode 36 different sounds. Braille identified three major defects of the code: first, the symbols represented phonetic sounds and not letters of

4032-693: Was introduced around 1933. In 1951 David Abraham, a woodworking teacher at the Perkins School for the Blind , produced a more advanced Braille typewriter, the Perkins Brailler . Braille printers or embossers were produced in the 1950s. In 1960 Robert Mann, a teacher in MIT, wrote DOTSYS , a software that allowed automatic braille translation , and another group created an embossing device called "M.I.T. Braillemboss". The Mitre Corporation team of Robert Gildea, Jonathan Millen, Reid Gerhart and Joseph Sullivan (now president of Duxbury Systems) developed DOTSYS III,

4096-419: Was invented by David S. Morgan and released in 2011. The SMART Brailler is based on the mechanical action of the classic Perkins Brailler, and, when unpowered, is operable as a standard Brailler. The SMART Brailler includes sensors capturing the mechanical motion of the embosser, and, when powered, adds text-to-speech audio feedback and a digital display for use by both sighted and blind individuals. Software for

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