US3317020A - Keyboard providing different unrelated codes in response to caseshift operation - Google Patents

Keyboard providing different unrelated codes in response to caseshift operation Download PDF

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Publication number
US3317020A
US3317020A US475515A US47551565A US3317020A US 3317020 A US3317020 A US 3317020A US 475515 A US475515 A US 475515A US 47551565 A US47551565 A US 47551565A US 3317020 A US3317020 A US 3317020A
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US
United States
Prior art keywords
selector
keyboard
slide
symbols
members
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US475515A
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English (en)
Inventor
Nitschke Bruno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1965S0096885 external-priority patent/DE1238062B/de
Priority claimed from FR26028A external-priority patent/FR1441242A/fr
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of US3317020A publication Critical patent/US3317020A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/16—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of transmitters, e.g. code-bars, code-discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type

Definitions

  • the invention relates to a keyboard for teletype machines for the generation of symbol steps by the actuation of selector slides acting on selector members responsive to key actuation in which system to each key there are allocated two or more symbols.
  • the invention has as its problem, that of developing a keyboard, which, unlike the known keyboards, makes it possible in use of a 5-to-8-step code to utilize the keys according to national requirements, each with substantially two symbols having arbitrary allocation.
  • known keyboards it is merely possible to utilize a key for two .symbols whose code signs differ in one or two definite steps, since the known shifting possibilities do not permit a shifting of arbitrary code steps, or permit it only with very high mechanical or electronic expenditure.
  • a known keyboard in whichshifting of all the code steps is provided can be operated only under a very high expenditure of force.
  • a keyboard for teletype machines which is characterized by the feature that on the selector slides there is arranged a number of rows of selector cams corresponding to the number of symbols for the allocated keys, and that the selector actuating members, controlled by one or more shift keys, adjustable teeth are arranged for disposition in the path of such selector cams.
  • the rows of selector cams are arranged adjacent to one another on the associated selector slides, and engageable with the teeth of a toothed bar, arranged on the selector rocker member, with the teeth of such bar being disposed one behind the 3,317,629 Patented May 2, 1967 other in axial direction and selectively slidable into the operating range ofone of the selector stud plates.
  • the keyboard it is possible to utilize two symbols on each key whose code combinations do not bear any relation to each other.
  • the code combinations of two symbols allocated to a key differ in each instance merely in certain steps, the keyboard is correspondingly simplified.
  • FIG. 1 is a sectional view of the keyboard in the vicinity of a selector slide
  • FIG. 2 is a front view of a selector rocker member in the vicinity of the selector slides.
  • FIG- 3 is a plan view of a keyboard layout.
  • a follower pawl 3 arranged for pivotal and longitudinal movement about a rolling point 1415, the pawl being swung, in opposition to the force of an oblique tension spring 4, to dispose a hook-shaped end 5 thereof into the path of motion of a rocker 6, actuated by auxiliary drive means.
  • a blocking projection or cam 8 disposed under a coupling projection or cam 7 of the follower pawl 3, is moved into engagement with a ball lock 9. A pivoting of another follower pawl is thus impossible.
  • a release bar 12 engageable by the lower left guide 11 of the follower pawl 3, which bar in actuated position releases the drive means for effecting a back and forth movement of the drive rocker 6.
  • its free edge 13 engages the follower hook 5 of the pawl 3.
  • the follower pawl 3 is drawn to the right, as viewed in FIG. 1 against the longitudinal force component of the tension spring 4, until a central offset 14 on the carry-along point 15 of the follower pawl 3 bears on the right side of the bearing cutout 16 of the selector slide 2.
  • Selector rocker members or shafts 19 are constructed to slidably support adjustable slides 21 having teeth 22, the slides 21 being settable in either of two end positions by a lever 20 actuated by a shift key to effect a sliding of the slide in axial direction of the selector rocker shafts.
  • Each tooth 22 on a slide 21 is allocated to two selector cam members 17, 18, and is selectively slidable at will by means of a shift key over the lever 20 into the range of one of such two selector cam members 17, 18.
  • the arrangement of the rows of cams on the two selector cam plates or members corresponds to the respective step combinations of the two symbols which are allocated to the keys, through which over the follower pawl 3 and the selector slide 2 the two selector cam members are settable. Thereby, through a simple axial sliding of the slide 21 on the selector rocker members 19, by means of the lever 20, the shifting from any code combination to any other code combination is possible.
  • respective selector rocker members 23 of known construction which are allocated to singly occupied command keys.
  • the shifting mechanism is unnecessary with respect to these selector members.
  • FIG. 3 illustrates a keyboard for a data teletyper, in which the arrangement and utilization of the keys with letters and digits has been carried out according to DIN 2127.
  • Thinly outlined keys are letter and symbol keys and the thickly outlined keys are command keys with 1'3 which no shifting is carried out since they are only singly occupied.
  • a keyboard according to claim 1 wherein the selector cam rows are arranged in adjacent relation on the selector slides, and a bar movably carried by each selector member, on which the associated teeth are disposed, each bar being shiftable relative to the associated selector member.
  • a keyboard according to claim 2 wherein said selector members are of elongated configuration and are supported for pivotal movement about their longitudinal axis,
  • a keyboard for teletype machines for generation of symbol steps comprising a plurality of selector slides, means operatively connecting each slide to a respective controlling key allocated to at least two symbols, a plurality of rows of selector cam members for each selector slide, 'operatively connected therewith and actuatable thereby, the number of rows for each slide being equal to the number of symbols allocated to the controlling key therefor, a plurality of selector members less in number than said selector slides and each provided with a plurality of teeth thereon cooperable with the respective selector cam members, and means cooperable with said teeth for selectively effecting a shifting thereof into the range of a cooperable row of selector cam members on each selector slide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
US475515A 1964-07-30 1965-07-28 Keyboard providing different unrelated codes in response to caseshift operation Expired - Lifetime US3317020A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DES92365A DE1235369B (de) 1964-07-30 1964-07-30 Tastatur fuer Fernschreibmaschinen zum Erzeugen von Zeichenschriften
DE1965S0096885 DE1238062B (de) 1965-04-30 1965-04-30 Tastatur fuer Fernschreibmaschinen zur Erzeugung von Zeichenschritten mittels von Waehlschiebern beeinflussbaren Waehlklappen
FR26028A FR1441242A (fr) 1965-07-26 1965-07-26 Clavier à touches pour télescripteur

Publications (1)

Publication Number Publication Date
US3317020A true US3317020A (en) 1967-05-02

Family

ID=31950208

Family Applications (2)

Application Number Title Priority Date Filing Date
US475515A Expired - Lifetime US3317020A (en) 1964-07-30 1965-07-28 Keyboard providing different unrelated codes in response to caseshift operation
US505226A Expired - Lifetime US3357534A (en) 1964-07-30 1965-10-23 Keyboard capable of producing either of two different codes

Family Applications After (1)

Application Number Title Priority Date Filing Date
US505226A Expired - Lifetime US3357534A (en) 1964-07-30 1965-10-23 Keyboard capable of producing either of two different codes

Country Status (4)

Country Link
US (2) US3317020A (da)
DE (1) DE1235369B (da)
DK (1) DK113928B (da)
GB (1) GB1064138A (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3565231A (en) * 1967-11-01 1971-02-23 Singer Co Key shift mechanism
US3768623A (en) * 1970-04-11 1973-10-30 Silver Seiko Keyboard control unit

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1974307A (en) * 1932-09-02 1934-09-18 Creed & Co Ltd Case signaling mechanism for keyboard controlled telegraph apparatus
US1988943A (en) * 1933-07-07 1935-01-22 Creed & Co Ltd Keyboard mechanism for telegraph apparatus
US2275615A (en) * 1939-11-09 1942-03-10 Ibm Tape transmitter
US2559637A (en) * 1948-04-05 1951-07-10 Creed & Co Ltd Keyboard controlled telegraph apparatus
US2879876A (en) * 1955-11-17 1959-03-31 Ibm Single element printing machine
US2938952A (en) * 1954-12-20 1960-05-31 Sperry Rand Corp Means for typing, verifying and printing
US3152759A (en) * 1964-10-13 Interlocked open keyboards with electric restoring
US3189153A (en) * 1962-07-03 1965-06-15 Ibm Keyboard

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187153A (en) * 1962-07-17 1965-06-01 Babcock & Wilcox Co Resistance welder

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152759A (en) * 1964-10-13 Interlocked open keyboards with electric restoring
US1974307A (en) * 1932-09-02 1934-09-18 Creed & Co Ltd Case signaling mechanism for keyboard controlled telegraph apparatus
US1988943A (en) * 1933-07-07 1935-01-22 Creed & Co Ltd Keyboard mechanism for telegraph apparatus
US2275615A (en) * 1939-11-09 1942-03-10 Ibm Tape transmitter
US2559637A (en) * 1948-04-05 1951-07-10 Creed & Co Ltd Keyboard controlled telegraph apparatus
US2938952A (en) * 1954-12-20 1960-05-31 Sperry Rand Corp Means for typing, verifying and printing
US2879876A (en) * 1955-11-17 1959-03-31 Ibm Single element printing machine
US3189153A (en) * 1962-07-03 1965-06-15 Ibm Keyboard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3565231A (en) * 1967-11-01 1971-02-23 Singer Co Key shift mechanism
US3768623A (en) * 1970-04-11 1973-10-30 Silver Seiko Keyboard control unit

Also Published As

Publication number Publication date
DK113928B (da) 1969-05-12
DE1235369B (de) 1967-03-02
GB1064138A (en) 1967-04-05
US3357534A (en) 1967-12-12

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