TYPING DEVICE

Abstract: The typing device comprises a character-bearing mem­ ber, for example a disc 20, having a series of flexible laminae 22 equidistantly spaced from each other and each terminating in an enlarged portion 23 with an embossed character, symbol or graphical sign. The arrangement and form of the characters, symbols and signs is such as to allow the typing of a number of charac­ ters and signs which is appreciably greater than the number of characters carried on the character-bearing member, using a suitable combination of successive strikings of said charac­ ters, symbols and signs at predetermined positions of printing.

Description: TYPING VICE The present invention relates to a typing device having a plurality of characters which can be used for the typing of texts in accordance with one or more scripts. A typing device is known comprising a character-bearing disc having a certain number of symbols and graphical signs allowing typing to be carried out in a specific language or group of languages. Since each group of languages has its own specific series of characters and symbols, the number and the type of languages which can be typed using one particular disc is limited to the number of differing characters which can be carried on the laminae of the disc. For reasons of bulk, this number is in practice substantially less than the number of characters included in the principal scripts derived from one single alphabetical stem, such as for example the Latin alphabet. Where it is necessary to be able to type various groups of languages, it is consequently necessary to provide more character-bearing discs. This circumstance consequently makes it difficult to resolve the problem of transcribing texts received through the TELETEX system, the characters of which, amounting to several hundred, are appreciably greater in number than the number of characters, which in the most elaborate versions amount to one hundred, provided on known character-bearing members. The object of the present invention is to provide an appreciably reduced group of characters which is adapted to allow typing of all the various scripts derived from one single alphabetical stem, and in particular that which is required for the International Teletex Service. The typing device in accordance with the present invention is defined in claim 1 below. Although this specification makes various use of the expressions character, symbol, sign, for simplicity in defining the invention in the claims, the term "symbol" is used generically to encompass all alphanumeric characters, punctuations and diacritical marks, graphical signs and other signs or symbols. The present invention will be described in more detail, by way of example, with reference to the accompanying drawings, in which: Fig 1 is a partial view of a typing device embodying the invention Fig 2 is a partial diagrammatical view of a machine employing the device in Fig 1; Fig 3 shows a group of characters of the typing device in Fig 1; Fig 4 shows a group of characters of the device in Fig 1; Fig 5 shows a second group of characters of the device; and Fig 6 shows some examples of characters typed using the device. Typing intervals are given herein in fractions of an inch since standard letter spacings are 1/10 1/12" and modern typewriters base carriage movements on multiples of 1/60". These dimensions correspond to 2.54 mm, 2.12 mm and 0.423 mm respectively. The typing device shown in Fig 1 comprises a characterbearing disc 20 in a high strength plastics material, having a central portion 21 adapted to be fixed in a known manner to a selector shaft 19, and a peripheral rim bearing incisions in the radial sense so as to define a series of flexible laminae 22, which are equidistantly spaced from each other. The laminae 22 terminate in a substantially enlarged portions 23 which bear embossed characters. The character-bearing disc 20 is substantially similar to that described in Italian Patent No. 1,016,590, issued on 20th June 1977 in the name of the present applicant, and consequently will not be described here in greater detail. The character-bearing disc or daisy wheel 20 comprises one hundred flexible laminae 22 which terminate in one hundred bases 23 or positions from each one of which projects a character, a symbol or a graphical sign, these being indicated by 24. From the face opposite the base 23 (Fig. 2), a positioning wedge 27 projects and this engages with a V-shaped notch 28 of a hammer 29 for striking the selected characters 24 against the platen 31 in front of it, at an exactly defined point of printing. The machine is designed to be able to displace the assembly comprising disc 20 and hammer 29 parallel to the platen 31 in order to define the fresh points of printing along one line. The shape of the characters 24 (Figs. 3 and 4) is of the "sans serif" type, substantially similar to the shape of the OCR-B series of characters of the ECMA-ll standard, printed in October 1971. These characters are additionally adaptable to be typed at intervals of 1/10" and 1/12". The central point of typing is generally indicated by 10 in figures 3,4 and 5 and is defined by a vertical axis 11 and a horizontal axis 12. The axes of the printing face of some of the characters on the daisy wheel which are shown in figures 3 and 4 have shapes and locations which are completely identical to those of the corresponding OCR-B characters. Other characters and symbols, shown in figure 5, have special shapes and locations, which are different from those of OCR-B characters. The distribution of the characters, symbols and graphical signs present on the bases of the daisy wheel is shown in table 1, where, to each position 1, 2, 3...99 and 100 there corresponds one character, one symbol or one graphical sign from figures 3, 4 and 5. In accordance with the invention, the arrangement and the shape of the characters, signs and symbols on the typing device is such as to allow all the characters and the graphical combinations derived from one common alphabetical stem to be represented. This is obtained either using individual strikes of the characters carried on the daisy wheel or by using a suitable combination of successive strikes of such characters, signs and symbols at the position of printing, which, depending on the in- dividual case, are in alignment with the axis of typing 11 in figures 3,4 and 5 or are forwards or backwards with respect to the axis of typing 11 by a predetermined multiple of 1/60". The example which follows describes the method of transcribing decimal numbers, symbols representing commonly used foreign currencies, punctuation marks, arithmetical signs, fractions, heterogeneous symbols, graphical signs, etc. as required by the International Teletex Service in accordance with the draft recommendations ISO/TC 97/SC 2/WG4 No. 198 of 29.2.1980, to which specific reference is made. Tables 2,3,4 and 5 show, in column 1, the ISO code for the character, number, sign, etc. whilst the character, number, sign, etc. which is to be struck is shown in column two. In particular, the ISO codes which start with L indicate the 52 basic upper case and lower-case characters of the Latin alphabet as well as Latin characters carrying diacritic accents and signs as well as other alphabetical characters which are not direct Latin characters, with any diacritic signs. The ISO codes which start with ND concern decimal numbers, the SC codes relate to currency symbols, the SP codes are punctuation marks, SA are arithmetical signs, NS are ex ponents, NF are fractions, SM are heterogeneous symbols and SD concern the diacritic signs. Table 5 additiona lly lists other symbols which are not coded in the ISO recommendations given above. In column three of tables 2,3,4 and 5, an indication is given of the locations of the characters and graphical signs on the bases of the character-bearing disc, which can be typed directly. It will be readily seen that almost all the one hundred characters carried on the daisy wheel have a sig nificance even when printed by themselves. The following should be mentioned as being exceptions: the symbol at location 4 which is used for the symbol for pound sterling (î) and-for the Lapp eng (g) LN61; the number one as a fraction numerator, location 60; the fractional denominators "/2", "/3", and "/8", locations 61, 63 and 65; the short vertical stroke ""', location 82, which is used for the asterisk (*) and the exclamation mark (.'); the upper crossstroke "¯" for "h" LH61 and " & LD61. The underlining sign, location 97, can be used for underlining characters and for the brackets. When the character or symbol needs more strikes, columns 4,5,6 and 7 indicate the location on the daisy wheel of the graphical sign which is to be struck, and, if the sign is struck at a position corresponding to the axis of typing 11 (Figs. 3,4 and 5), this is not followed by any further indication, whilst if the constituent sign is to be struck at a position which is displaced with respect to the axis 11, it is followed by an indication both of the direction and of the extent of displacement of the point of printing, and this is done in the progressive order shown in columns 4,5,6 and 7. The fifty-two letters of the alphabet (upper and lower case) are carried on the bases of the characterbearing disc, and the location of these can be seen in table 1. These fifty-two letters are typed each using one single strike with the exception of the "i " (lower case) and of the -"X" (capital) as will be described below. In order to clarify what has been said above, let it. be supposed that it is necessary to strike for example, the "a" (lower case). The first column of table 2 indicates the symbol LAO1 from the ISO draft recommendations referred to above, whilst the second column indicates the graphical sign, which in the case of this example is the a. The third column indicates that the character-bearing disc will be rotated so as to align the character at location 9, corresponding to the a (table 1), with the hammer 29, whilst the fourth column (table 2) indicates that the character will be printed using one single strike, as shown in figure 6, this being done so as to correspond with the axis of printing 11 in the absence of other indications in the fourth column. Let us suppose that it is necessary, to print, for example the "a" with an acute accent. The first column of table 2 gives the ISO symbol LAll, the second column gives the "a", the third column does not have an entry since the á to be struck is made up by two graphical signs, these being the a and the acute accent ' . The fourth column indicates the number of the location, in this example 9, which from table 1 will be seen to correspond to the a, and in the fifth column (table 2), the location 8 is given, and this is struck during the second striking operation, and corresponds to the acute accent as as given in table 1; no indication as regards displacement is given since the axis of printing 11 coincides for the striking of position 9 and the succeeding striking of position 8. Using the combination of these two strikes, the á is printed as represented in figure 6. Let us now suppose that it is necessary to type the il (lower case with the shortening symbol over it). The first column of table 2 gives LA23 as the ISO symbol and the second column gives the a, whilst the third column has no entry since we are dealing with a composite symbol. From the fourth column, it is found that the first strike concerns the location 9, corresponding to the a in table 1, and this is performed in alignment with the printing axis 11 of the final character. From the fifth column, it is found that the second strike concerns location 8, which corresponds to the acute accent in table 1, and this is carried out at a position corresponding to the axis 11. From the sixth column it is found that a third strike is involved and this concerns location 64, which corresponds to the grave accent' in table 1. This strike is also carried out at a position corresponding to the axis of printing 11, and the symbol becomes joined to the symbol thus providing the shor teningsymbolVwhich is located over the "a", as indicated in figure 6. In order to print the i (lower case), coded LIO1 in table 2, there is no entry in the third column since, as has been stated above, the i is a composite character. From the fourth column it is found that the first strike concerns the-location 5, corresponding to the i without its dot in table 1, and this is carried out in alignment with the printing axis 11. From the fifth column of table 2 it is found that the second strike concerns location 16, corresponding to the of table 1, and this is also typed in alignment with the printing axis 11. Using the combination of these two strikes, the lowercase i is consequently printed out as indicated in figure 6. Let us now suppose that it is necessary to type the symbol TF, the American paragraph symbol, SM25 in table 5. The third column does not include an entry since this is a. composite character, and the fourth column indicates the first strike to be carried out at location 85, corresponding to the symbol for degrees " " in table 1, together with the indication that this is carried out using a displacement of -2/60" with respect to the printing axis 11, in other words the symbol "0" is struck so as to be displaced backwards with respect to the printing axis by 2/60". The fifth column of table 5 indicates the second strike at location 84, which corresponds to the "T" of table 1, with an indication that this is carried out using a displacement of +1/60". Since the first strike was displaced by -2/60" and the. second strike is displaced by +1/60" with respect to the first strike, the "T" is typed displaced backwards by 1/60" with respect to the printing axis 11. The sixth column in table 5 indicates that the third strike at location 84, which is identical to the preceding one, with an indication that this is carried out using a displacement of +2/60" with respect to the second strike and consequently the third strike is displaced by 1/60" with respect to the printing axis 11. Using the combination of these three strikes, the symbol "q7" is typed as shown in figure 6. Let us suppose that it is necessary to type the "&commat;" (the a used in commerce). The third column of table 5 does not have an entry since this is a composite character, the fourth column indicates the first strike at location 32, corresponding to the sign "C" in table 1, without any additional indications so that, consequently, printing is carried out in alignment with the printing axis 11 (figures 3 and 5). The fifth column of table 5 indicates the second strike at location 85, corresponding to the 0 (degree symbol) in table 1, together with the indication. that the strike is carried out displaced by +1/60" with respect to the first strike. After the two strikes, the resulting character will have a practically continuous outline which defines the "&commat;" in figure 6. Let us now suppose that it is necessary to type. the lower-case Icelandic symbol "Q", LT63. The third column of table 4 does not have an entry since this is a a composite character and the fourth column indicates the first strike at location 7, corresponding to, the lowercase b in table 1, and the fifth column of table 4 indicates the second strike at location 27, corresponding to the lower-case p in table 1. As there are no other indications, the two letters b and p are typed in alignment with the printing axis 11, so that using these two strikes, the small Icelandic " & is typed with the continuous profile shown in figure 6. For typing the Icelandic capital "t)", on the other hand, the third column of table 4 does not include an entry since this is a composite character, and from the fourth column it will be seen that the first strike at location 58, corresponding to the sign "|" (elongated vertical line) of table 1, is carried out displaced by -2/60" with respect to the printing axis 11 so that the sign "1" is typed displaced backwards by 2/60" with respect to the printing axis 11. From the fifth column it will be seen that the second strike at location 18, corresponding to the letter "o" (lower-case) in table 11, is carried out displaced by +2/60" with respect to the first strike and the composite character will be typed in alignment with the print axis 11, as shown in figure 6. Let us suppose that it is necessary, for example, to type the (capital) X, in table 4, LX02. There is no entry in the third column, this sign being of the composite type. The fourth column gives the first strike at location 48, corresponding to the sign "\" (oblique stroke inclined to the left) in table 1, and the fifth column gives the second strike at location 19, corresponding to the sign "/" (oblique stroke inclined to the right) in table 1. In this example the two strikes are carried out in alignment with the print axis 11 thus yielding the X (capital) which will itself be centred on the axis 11, as shown in figure 6. When it is necessary to type a punctuation mark, for example the semi-colon ";", SP14, in table 5, the absence of an entry in the third column indicates that this is a composite mark. The character-bearing disc is positioned at location 2, corresponding to the "," sign in table 1, aligned with the print axis 11. The second strike is carried out at location 55, this also being in alignment with the axis 11, in order to type the " " sign, this being a mid-position full stop sign in table 1, which is located over the comma. Let us suppose that it is necessary to type a heterogeneous symbol 3- (righthand bracket brace). From table 5 it will be seen that the third column does not include an entry as we are dealing with a composite symbol. From the fourth column it will be found that the first printing operation, carried out at location 97, corresponds to the sign " " in table 1, and this is performed displaced by -2/60" with respect to the print axis 11, that is, the sign " " is displaced backwards by 2/60" with respect to the print axis. From the fifth column it is found that the second print operation, at location 95, corresponds to the sing "" in tabl 1. and this is carried out at the same position as the first printing operation, in other words it is also displaced backwards by 2/60". From the sixth column it is found that the third printing operation, at location 58, corresponds to the "1" sign in table 1, and this is carried out displaced by +2/60" with'respect to the first and second printing operations, so that it is now on the print axis 11 of the final character. From the seventh co column it is found that the fourth print operation, at location 3, corresponds to the sign "¯" this being the midposition horizontal stroke in table 1, and this is printed displaced by +1/60" with respect to the third print operation and is consequently displaced by 1/60" forwards with respect to the print axis 11, as shown in figure 6. From tables 2,3,4 and 5 it will be seen that the sign " ", an upper dot, is used for the vowels and consonants which are dotted, as a sign of diaeresis and with punctuation marks, for example for forming the "i", the inverted exclamation mark. The comma sign "," is used in combination with consonants which have a cedilla, for the symbol for the florin, for the semi-colon, for the Greek " " and for the Lapp "eng", both in the upper and lower case. The acute accent " 'u' and the grave accent " u are used for forming the shortening sign "#", the circumflex accent "^" and the double inverted commas. Additionally, the mid-position horizontal stroke is used for the characters "d ll and "h" carryiing a horizontal bar, "d" and l, and for the Icelandic "eth", and finally the sign 11=17 is also used, together with tfie "H", for defining the Maltese "H". The examples described above are intended only to facilitate the reading of tables 2,3,4 and 5, from which it is possible to find the necessary information for printing characters, symbols, signs, etc. and other graphical combinations as required by the ISO recommendation No. 198 for the International Teletex Service. It will however be clear that it is possible to print other built-up characters using combinations of print operations and displacements which differ from those given in the tables. Modifications and improvements may be introduced into the printing device described above without departing from the scope of the invention. For example, the printing body, which in the description is a characterbearing disc provided with flexible laminae commonly referred to as ,a "daisy wheel", may be a spherical printing head or a barrel printing head or any other type of printing body which is normally mounted on a typewriter. Alternatively, the characters listed may be carried on corresponding type bars of typewriters of this kind. Everything that has been described above concerning the striking operations of the single hammer and the displacement of the carriage should in this case be taken to mean striking operations of the type bar and displacement of the carriage. The dimensions of the typing face can be chosen. to lie within fairly wide margins. Nevertheless, excellent results when forming the connections between the various graphical representations typed have been obtained using a typing face of size 0.22mm. The location and distribution of the characters, signs and symbols as given in table 1 can be varied in accordance with various criteria which a person skilled in the art will easily be able to apply to a characterbearing disc employing flexible laminae, to a spherical print head, to a barrel-shaped character-bearing body and to any other type of printing body. By varying the distribution and positioning of the characters, symbols and signs in table 1, a change results in the locations and printing positions given in tables 2,3,4 and 5. The positions which have been given in table 1 are those which allow the highest speed of printing when typing out texts in a wide range of languages. TAB.1 EMI16.1 <tb> Pos <SEP> Car. <SEP> Pos. <SEP> Car. <SEP> Pos. <SEP> Car. <SEP> Pos. <SEP> Car. <tb> <SEP> 1 <SEP> ¯ <SEP> 26 <SEP> j <SEP> 51 <SEP> x <SEP> 76 <SEP> 8 <tb> <SEP> 2 <SEP> , <SEP> 27 <SEP> p <SEP> 52 <SEP> Y <SEP> 77 <SEP> 9 <tb> <SEP> 3 <SEP> - <SEP> 28 <SEP> z <SEP> 53 <SEP> # <SEP> 78 <SEP> < <tb> <SEP> 4 <SEP> . <SEP> 29 <SEP> v <SEP> 54 <SEP> 0 <SEP> 79 <SEP> > <tb> <SEP> 5 <SEP> c <SEP> 30 <SEP> S <SEP> 55 <SEP> <SEP> 80 <SEP> # <tb> <SEP> 6 <SEP> h <SEP> 31 <SEP> c <SEP> 56 <SEP> 7/8 <SEP> 81 <SEP> K <tb> <SEP> 7 <SEP> b <SEP> 32 <SEP> C <SEP> 57 <SEP> q <SEP> 82 <SEP> ; ; <tb> <SEP> 8 <SEP> # <SEP> 33 <SEP> A <SEP> 58 <SEP> # <SEP> 83 <SEP> R <tb> <SEP> 9 <SEP> a <SEP> 34 <SEP> P <SEP> 59 <SEP> * <SEP> 84 <SEP> T <tb> <SEP> 10 <SEP> s <SEP> 35 <SEP> B <SEP> 60 <SEP> 1 <SEP> 85 <SEP> <tb> <SEP> 11 <SEP> r <SEP> 36 <SEP> y <SEP> 61 <SEP> /2 <SEP> 86 <SEP> # <tb> <SEP> 12 <SEP> t <SEP> 37 <SEP> ss <SEP> 62 <SEP> /4 <SEP> 87 <SEP> M <tb> <SEP> 13 <SEP> e <SEP> 38 <SEP> J <SEP> 63 <SEP> /3 <SEP> 88 <SEP> ? <tb> <SEP> 14 <SEP> g <SEP> 39 <SEP> u <SEP> 64 <SEP> # <SEP> <SEP> 89 <SEP> F <tb> <SEP> 15 <SEP> @ <SEP> <SEP> 40 <SEP> ( <SEP> 65 <SEP> /8 <SEP> 90 <SEP> D <tb> <SEP> 16 <SEP> <SEP> 41 <SEP> E <SEP> 66 <SEP> 4 <SEP> 91 <SEP> Z <tb> <SEP> 17 <SEP> n <SEP> 42 <SEP> # <SEP> <SEP> 67 <SEP> 2 <SEP> 92 <SEP> ¯ <tb> <SEP> 18 <SEP> o <SEP> 43 <SEP> H <SEP> 68 <SEP> 5 <SEP> 93 <SEP> l <tb> <SEP> 19 <SEP> d <SEP> 44 <SEP> O <SEP> 69 <SEP> * <SEP> 94 <SEP> I <tb> 20 <SEP> f <SEP> 45 <SEP> % <SEP> 70 <SEP> 6 <SEP> 95 <SEP> # <tb> 21 <SEP> l <SEP> 46 <SEP> N <SEP> 71 <SEP> 5/8 <SEP> 96 <SEP> k <tb> 22 <SEP> G <SEP> 47 <SEP> µ <SEP> 72 <SEP> 7 <SEP> 97 <SEP> ¯ <tb> 23 <SEP> u <SEP> 48 <SEP> \ <SEP> 73 <SEP> & <SEP> 98 <SEP> ) <tb> 24 <SEP> V <SEP> 49 <SEP> / <SEP> 74 <SEP> <SEP> 99 <SEP> w <tb> 25 <SEP> m <SEP> 50 <SEP> W <SEP> 75 <SEP> 3 <SEP> 100 <SEP> . <tb> TAB.2 EMI17.1 <SEP> 1 <SEP> 2 <SEP> 3 <SEP> 4 <SEP> 5 <SEP> 6 <SEP> 7 <SEP> 1 <SEP> 2 <SEP> 3 <SEP> 4 <SEP> 5 <SEP> 6 <SEP> 7 <SEP> 1 <SEP> 2 <SEP> 3 <SEP> 4 <SEP> 5 <SEP> 6 <SEP> 7 <tb> LA01 <SEP> a <SEP> 9 <SEP> 9 <SEP> LC12 <SEP> # <SEP> 32 <SEP> 8 <SEP> LE22 <SEP> # <SEP> 41 <SEP> @ <SEP> 64 <tb> LAO2 <SEP> A <SEP> 33 <SEP> 33 <SEP> LC13 <SEP> # <SEP> 8-1/60 <SEP> 5+1/60 <SEP> 64+1/60 <SEP> LE29 <SEP> # <SEP> 13 <SEP> 16 <tb> LA11 <SEP> á <SEP> 9 <SEP> 8 <SEP> LC14 <SEP> # <SEP> 8-1/60 <SEP> 32+1/60 <SEP> 64+1/60 <SEP> LE30 <SEP> # <SEP> 41 <SEP> 46 <tb> LA12 <SEP> Á <SEP> 33 <SEP> 8 <SEP> LC21 <SEP> # <SEP> 5 <SEP> 8 <SEP> 64 <SEP> LE31 <SEP> # <SEP> 43 <SEP> 95 <tb> LA13 <SEP> à <SEP> 9 <SEP> 64 <SEP> LC22 <SEP> # <SEP> 32 <SEP> 8 <SEP> 64 <SEP> LE32 <SEP> # <SEP> 41 <SEP> 95 <tb> LA14 <SEP> À <SEP> 33 <SEP> 64 <SEP> LC29 <SEP> # <SEP> 5 <SEP> 46 <SEP> LE43 <SEP> # <SEP> 13 <SEP> 31 <tb> LA15 <SEP> â <SEP> 8-1/60 <SEP> 9+1/60 <SEP> 64+1/60 <SEP> LC30 <SEP> # <SEP> 32 <SEP> 46 <SEP> LE44 <SEP> E <SEP> 41 <SEP> 31+1/60 <tb> LA16 <SEP> Â <SEP> 8-1/60 <SEP> 33+1/60 <SEP> 64+1/60 <SEP> LC41 <SEP> ç <SEP> 5 <SEP> 2 <SEP> LF01 <SEP> f <SEP> 20 <SEP> 20 <tb> LA17 <SEP> ä <SEP> 16-1/60 <SEP> 9+1/60 <SEP> 16+1/60 <SEP> LC42 <SEP> Ç <SEP> 32 <SEP> 2 <SEP> LF02 <SEP> F <SEP> 89 <SEP> 89 <tb> LA18 <SEP> Ä <SEP> 16+1/60 <SEP> 33+1/60 <SEP> 16+1/60 <SEP> LD01 <SEP> d <SEP> 19 <SEP> 19 <SEP> LG01 <SEP> g <SEP> 14 <SEP> 14 <tb> LA19 <SEP> <SEP> 9 <SEP> 86 <SEP> LD02 <SEP> D <SEP> 20 <SEP> 20 <SEP> LG02 <SEP> G <SEP> 22 <SEP> 22 <tb> LA20 <SEP> <SEP> 33 <SEP> 86 <SEP> LD21 <SEP> # <SEP> 18 <SEP> 8 <SEP> 64 <SEP> LG11 <SEP> # <SEP> 14 <SEP> 8 <tb> LA23 <SEP> # <SEP> 9 <SEP> 8 <SEP> 64 <SEP> LD22 <SEP> # <SEP> 20 <SEP> 5 <SEP> 64 <SEP> LG15 <SEP> # <SEP> 8-1/60 <SEP> 14+1/60 <SEP> 64+1/60 <tb> LA24 <SEP> # <SEP> 33 <SEP> 8 <SEP> 64 <SEP> LD61 <SEP> # <SEP> 18 <SEP> 94+1/60 <SEP> LG16 <SEP> # <SEP> 8-1/60 <SEP> 22+1/60 <SEP> 64+1/60 <tb> LA27 <SEP> Åa <SEP> 9 <SEP> 16 <SEP> LD62 <SEP> # <SEP> 8-1/60 <SEP> 20+1/60 <SEP> LG23 <SEP> # <SEP> 16 <SEP> 8 <SEP> 64 <tb> LA28 <SEP> <SEP> 33 <SEP> 16 <SEP> LD69 <SEP> # <SEP> 18 <SEP> 56-1/60 <SEP> 92 <SEP> LG24 <SEP> # <SEP> 22 <SEP> 8 <SEP> 64 <tb> LA31 <SEP> # <SEP> 9 <SEP> 55 <SEP> LE01 <SEP> e <SEP> 13 <SEP> 13 <SEP> LG29 <SEP> # <SEP> 14 <SEP> 16 <tb> LA32 <SEP> # <SEP> 33 <SEP> 95 <SEP> LE02 <SEP> E <SEP> 41 <SEP> 41 <SEP> LG40 <SEP> # <SEP> 22 <SEP> 16 <tb> LA43 <SEP> # <SEP> 9 <SEP> 31+1/60 <SEP> LE11 <SEP> é <SEP> 13 <SEP> 8 <SEP> LG42 <SEP> # <SEP> 22 <SEP> 2 <tb> LA44 <SEP> # <SEP> 33 <SEP> 31+1/60 <SEP> LE12 <SEP> É <SEP> 41 <SEP> 8 <SEP> LH01 <SEP> h <SEP> 6 <SEP> 6 <tb> LA51 <SEP> <SEP> 74 <SEP> 74 <SEP> LE13 <SEP> è <SEP> 15 <SEP> 64 <SEP> LH02 <SEP> H <SEP> 43 <SEP> 43 <tb> LA52 <SEP> <SEP> 33+1/60 <SEP> 44+1/60 <SEP> LE14 <SEP> È <SEP> 41 <SEP> 64 <SEP> LH15 <SEP> # 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<SEP> 82 <SEP> 16 <SEP> MF05 <SEP> ¹ <SEP> 56-1/60 <SEP> 68+1/60 <SEP> SO31 <SEP> # <SEP> 35 <SEP> 35 <tb> SP04 <SEP> " <SEP> 82-1/60 <SEP> 82-1/60 <SEP> SM01 <SEP> &num; <SEP> 58-1/60 <SEP> @@+1/60 <SEP> 58+1/60 <SEP> SO61 <SEP> # <SEP> @ <tb> SP05 <SEP> ' <SEP> 82 <SEP> SM02 <SEP> % <SEP> 55-1/60 <SEP> 49-1/60 <SEP> 100+1/60 <SEP> SO49 <SEP> # <SEP> 51 <SEP> 51 <tb> SP06 <SEP> ( <SEP> 40 <SEP> 40 <SEP> SM03 <SEP> & <SEP> 75 <SEP> 75 <SEP> \ <SEP> 45 <SEP> 45 <tb> SP07 <SEP> ) <SEP> 50 <SEP> 38 <SEP> SM04 <SEP> * <SEP> 79-1/60 <SEP> 82+1/60 <SEP> 78+1/60 <SEP> 1/8 <SEP> 60-1/60 <SEP> 89-1/60 <tb> SP08 <SEP> , <SEP> @ <SEP> @ <SEP> SM05 <SEP> &commat; <SEP> @@ <SEP> 85+1/60 <SEP> 3/8 <SEP> 56-1/60 <SEP> 69+1/60 <tb> SP09 <SEP> ¯ <SEP> 1 <SEP> 1 <SEP> SM06 <SEP> [ <SEP> 58-1/60 <SEP> 87-1/60 <SEP> 95 <SEP> 5/8 <SEP> 71 <SEP> 71 <tb> SP10 <SEP> - <SEP> @ <SEP> @ <SEP> SM08 <SEP> ] <SEP> 57-1/60 <SEP> 95 <SEP> 55+2/60 <SEP> 7/8 <SEP> 56 <SEP> 56 <tb> SP11 <SEP> . <SEP> 100 <SEP> 100 <SEP> SM16 <SEP> # <SEP> 58 <SEP> 58 <SEP> 1/3 <SEP> 10-1/60 <SEP> 68+1/60 <tb> SP12 <SEP> / <SEP> 40 <SEP> 43 <SEP> SM17 <SEP> <SEP> 2-1/60 <SEP> 28-1/60 <SEP> 2/3 <SEP> 51-1/60 <SEP> 65+1/60 <tb> SP13 <SEP> : <SEP> 100 <SEP> 96 <SEP> SM18 <SEP> # <SEP> 100-1/60 <SEP> 41+1/60 <SEP> 10+1/60 <SEP> 1/ <SEP> 60-1/60 <SEP> 49+1/60 <tb> SP14 <SEP> ; <SEP> @ <SEP> 95 <SEP> SM19 <SEP> <SEP> 85 <SEP> 88 <SEP> 3/ <SEP> 59-1/60 <SEP> 49-1/60 <tb> SP15 <SEP> ? <SEP> 88 <SEP> 88 <SEP> SM20 <SEP> # <SEP> 10 <SEP> 87 <SEP> # <SEP> 20 <SEP> @ <tb> SP16 <SEP> # <SEP> 42 <SEP> 42 <SEP> SM21 <SEP> # <SEP> 9 <SEP> 87 <SEP> # <SEP> 10-1/60 <SEP> 58-2/60 <SEP> 100+1/60 <tb> SP17 <SEP> # <SEP> 70-1/60 <SEP> 78-1/60 <SEP> SM24 <SEP> µ <SEP> 47 <SEP> 47 <SEP> # <SEP> 12-1/60 <SEP> 6+2/60 <tb> SP18 <SEP> # <SEP> 79-1/60 <SEP> 79-1/60 <SEP> SM25 <SEP> # <SEP> 55-1/60 <SEP> 84+1/60 <SEP> 84+2/60 <SEP> # <SEP> 85-1/60 <SEP> 10+1/60 <tb> SA01 <SEP> + <SEP> 3 <SEP> 82 <SEP> SM26 <SEP> . <SEP> 55 <SEP> 55 <SEP> Fr <SEP> 89-1/60 <SEP> 11+2/60 <SEP> 87+2/60 <SEP> 98 <tb> SA02 <SEP> # <SEP> 9 <SEP> 82 <SEP> 97 <SEP> SO11 <SEP> # <SEP> 8 <SEP> 6 <SEP> { <SEP> 8-1/60 <SEP> 59+1/60 <SEP> 56+2/60 <SEP> 2+1/60 <tb> SA03 <SEP> < <SEP> 78 <SEP> 70 <SEP> SO18 <SEP> # <SEP> 64 <SEP> 64 <SEP> } <SEP> 97-1/60 <SEP> 85 <tb> SA04 <SEP> = <SEP> 69 <SEP> 69 <SEP> SO19 <SEP> # <SEP> 8-1/60 <SEP> 64+2/60 <SEP> # <SEP> 55 <SEP> 55 <tb>

Claims: CLAIMS 1. A typing device bearing a series of symbols, characterised in that the shapes of the symbols are such as to allow the printing of representations of a number of symbols appreciably greater than the number of symbols in the said series, by employing combinations of two or more striking operations of the symbols of the said series in printing positions which are in alignment with the axis of printing or displaced with respect to this axis. 2. A typing device according to claim 1, wherein a group of the series of symbols have character forms which are substantially similar to those of OCR-B characters. 3. A typing device according to claim 1 or 2, wherein the series of symbols includes a group of symbols which are identifiable among the written symbols of one common type of alphabet using one single print operation, and a small group of symbols which are identifiable only in combination with other symbols of the series. 4. A typing device according to claim 3, wherein the symbols of the first and the second groups have a form substantially as represented in Figures 3, 4 and 5 of the accompanying drawings. 5. A typing device according to any of the preceding claims, wherein alphanumeric characters included in the series of symbols are of the sans serif type. 6. A typing device according to any of the preceding claims, wherein the series of symbols includes an upper dot sign ".", used for vowels and consonants which are dotted, for the diaeresis symbol and for at least one punctuation mark. 7. A typing device according to any of the preceding claims, wherein the series of symbols includes a comma sign, used in combination with consonants, without displacement from the print axis for providing the cedilla, the semi-colon ";" II and the florin symbol, and, using displacement, for defining the Lapp "eng" in small and capital letters, and the Greek '|Fr- 8. A typing device in accordance with any of the preceding claims, wherein the series of symbols includes an acute accent "F" and a grave accent " > II used for the formation of the shortening symbol """, the circumflex accent "&num;\" and double inverted commas. 9. A typing device according to any of the preceding claims, wherein the series of symbols includes a mid-height horizontal stroke used for the letters "d" and "h" provided with a horizontal bar, and for the Icelandic "eth". 10. A typing device according to any of the preceding claims, wherein the series of symbols includes equals sign "J' in which the transverse dimensions and the height of one of the two lines are such as to match up with an "H" for defining a maltase "it". 11. A typing device according to any of the preceding claims wherein the series of symbols includes an oblique stroke inclined to the left " \" for defining the capital "X" in combination with an oblique stroke inclined to the right "/". 12. A typing device according to any of the preceding claims, wherein the symbols of the series are arranged on the outer periphery of a character-bearing body in an arrangement in accordance with table 1 in order to optimise the speed of printing of the device on the basis of the frequency with which pairs of characters, signs, and symbols are used in a very wide range of languages. 13. A typing device according to any of the preceding claims, wherein the device is a symbol-bearing disc having a series of flexible laminae carrying the series of symbols. 14. A typing device according to any of the preceding claims, wherein the combinations of the series of symbols makes it possible to form the characters and the graphical combinations required by the Teletex Service. 15. A typing device according to any of the preceding claims, wherein sets of symbols and displacements with respect to the axis, substantially as indicated in tables 2, 3, 4 and 5 are provided. 16. A typing device substantially as hereinbefore described and with reference to the accompanying drawings and tables.

Inventors: ROLFO, ARTURO
Applicants: ING. C. OLIVETTI & C., S.P.A.
Application year: 1982
Main classification: B41J1
IPC codes: B41J25, G06F17, B41J1, B41J2