GB843819A - Improvements in typewriter mechanisms - Google Patents

Improvements in typewriter mechanisms

Info

Publication number
GB843819A
GB843819A GB39530/56A GB3953056A GB843819A GB 843819 A GB843819 A GB 843819A GB 39530/56 A GB39530/56 A GB 39530/56A GB 3953056 A GB3953056 A GB 3953056A GB 843819 A GB843819 A GB 843819A
Authority
GB
United Kingdom
Prior art keywords
hub
carriage
cam
members
governor
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
Application number
GB39530/56A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB843819A publication Critical patent/GB843819A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/02—Character- or line-spacing mechanisms with retarding devices, e.g. brakes

Landscapes

  • Character Spaces And Line Spaces In Printers (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

843,819. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 28, 1956 [Dec. 30, 1955], No. 39530/56. Class 100(4) In a decelerating mechanism for use with a typewriter having a travelling carriage, when a tape drum 20, Fig. 1, rotates to drive the carriage for tabulation a hub 10 is rotated through a member 26 and a one-way spring clutch 28, and with it a governor 2 through gears 4, 6. Tab check lever 30, Fig. 3, is set by being pulled to the left by a spring 56 acting through members 58, 60, 62, 38, 36 when released from a retainer 54 by tab lever 50. As cab check lever 30 is driven back to its original position during the last part of the carriage travel, a cam 58 is driven anti-clockwise about a shaft 8 through the members 36, 38, 62, 60. The cam 58, Fig. 1, is mounted on a hub 64 which is connected via a one-way spring clutch 66 to the hub 10 which drives the governor 2 as previously described, thus decelerating the carriage. At the end of a carriage return movement, a bell crank 78, Fig. 4, is rocked anti-clockwise by a slide 72 pushed by a stop 70. A cam 100 is rotated anti-clockwise through members 98, 96, 86, and a lever 84 depressed by an ear 82. The cam 100, Fig. 1, rotates a hub 102 which rotates a hub 16 via a one-way spring clutch. The hub 16 drives the governor 2 via members 14, 10, 6 and 4. The decelerating force for carriage return is adjustable by altering the relative positions of levers 88, 86 by turning a screw 92.
GB39530/56A 1955-12-30 1956-12-28 Improvements in typewriter mechanisms Expired GB843819A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US556630A US2854124A (en) 1955-12-30 1955-12-30 Typewriter carriage decelerator

Publications (1)

Publication Number Publication Date
GB843819A true GB843819A (en) 1960-08-10

Family

ID=24222166

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39530/56A Expired GB843819A (en) 1955-12-30 1956-12-28 Improvements in typewriter mechanisms

Country Status (3)

Country Link
US (1) US2854124A (en)
DE (1) DE1029836B (en)
GB (1) GB843819A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048255A (en) * 1959-06-03 1962-08-07 Sperry Rand Corp Means for cushioning carriage return and tabulation
GB1053187A (en) * 1963-09-25
US3288260A (en) * 1963-12-12 1966-11-29 Olivetti Underwood Corp Carriage speed governing means for typewriters
US3389774A (en) * 1965-10-05 1968-06-25 Scm Corp Typewriter carriage control
US3381791A (en) * 1965-10-05 1968-05-07 Scm Corp Typewriter carriage control
US3444976A (en) * 1967-10-10 1969-05-20 Scm Corp Typewriter carriage decelerator
US3595360A (en) * 1969-11-17 1971-07-27 Scm Corp Carriage decelerator for tabulation and carriage return operation
JPS5311883B2 (en) * 1973-05-14 1978-04-25

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2209512A (en) * 1940-07-30 Pbinting tabulator
US871280A (en) * 1905-06-24 1907-11-19 Parker Machine Company Carriage escapement mechanism.
US1516695A (en) * 1924-07-07 1924-11-25 Atkinson Sydney Sectional motor radiator

Also Published As

Publication number Publication date
DE1029836B (en) 1958-05-14
US2854124A (en) 1958-09-30

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