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GB674070A - Improvements in ink ribbon progressing and reversing devices - Google Patents

Improvements in ink ribbon progressing and reversing devices

Info

Publication number
GB674070A
GB674070A GB11954/49A GB1195449A GB674070A GB 674070 A GB674070 A GB 674070A GB 11954/49 A GB11954/49 A GB 11954/49A GB 1195449 A GB1195449 A GB 1195449A GB 674070 A GB674070 A GB 674070A
Authority
GB
United Kingdom
Prior art keywords
ribbon
shaft
spool
resilient member
shafts
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
GB11954/49A
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.)
BRITISH VACUUM CLEANER AND ENG
Original Assignee
BRITISH VACUUM CLEANER AND ENG
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 BRITISH VACUUM CLEANER AND ENG filed Critical BRITISH VACUUM CLEANER AND ENG
Priority to GB11954/49A priority Critical patent/GB674070A/en
Priority to US183875A priority patent/US2627965A/en
Publication of GB674070A publication Critical patent/GB674070A/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
    • B41J33/00—Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
    • B41J33/14—Ribbon-feed devices or mechanisms
    • B41J33/40—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction
    • B41J33/44—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically
    • B41J33/51—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically and characterised by the use of particular reversing control means
    • B41J33/518—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically and characterised by the use of particular reversing control means the reversing-feeler engaging buttons or the like secured to the ribbon near its ends

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

674,070. Ink-ribbon mechanism. BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd., and BROWN, I. G. O. May 4,1949, No. 11954/49. Class 100 (iv). A ribbon reversing mechanism comprises a driven shaft 78 moved axially to engage the drive to either of two ribbon spool shafts 75, 75A the movement being effected by stop 88 attached near the end of the ribbon 71 which engages pivoted levers 63 operating an actuator member 86 containing a resilient member 85 coacting with a two-faced cam 84 on the shaft 78 so that when the resilient member is moved past the overcentre position of the cam the shaft 78 is moved in the reverse direction. The movement is transmitted from the levers 63 to the actuator 86 by shafts 87, 87A which have an axial movement limited by stops 87C, 87D effective when the resilient member 85, in the form of a coiled spring, passes over the highest point of the cam surfaces 84, 84A. The subsequent contraction of the spring 85 effects the axial movement of shaft 78 to cause engagement of either of gears 79, 79A with gears 76, 76A or the spool spindles 75, 75A which have encircling springs 81, 81A imparting a braking action on the non-driven spool to prevent slackening of the ribbon. The ribbon spool shafts 75, 75A may be formed with hollow ends for the reception therein of ends of the shaft 78. The mechanism may be used in a time recorder machine described in Specification 674,071, [Group XIX].
GB11954/49A 1949-05-04 1949-05-04 Improvements in ink ribbon progressing and reversing devices Expired GB674070A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB11954/49A GB674070A (en) 1949-05-04 1949-05-04 Improvements in ink ribbon progressing and reversing devices
US183875A US2627965A (en) 1949-05-04 1950-09-08 Ribbon progressing and reversing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2627965X 1949-05-04
GB11954/49A GB674070A (en) 1949-05-04 1949-05-04 Improvements in ink ribbon progressing and reversing devices

Publications (1)

Publication Number Publication Date
GB674070A true GB674070A (en) 1952-06-18

Family

ID=27614823

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11954/49A Expired GB674070A (en) 1949-05-04 1949-05-04 Improvements in ink ribbon progressing and reversing devices

Country Status (2)

Country Link
US (1) US2627965A (en)
GB (1) GB674070A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000413A1 (en) * 1977-07-13 1979-01-24 Philips Patentverwaltung GmbH Drive mechanism for printers, either for progressing or reversing an ink ribbon, or for retracting the printing head

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185083A (en) * 1961-09-21 1965-05-25 Control Data Corp Ribbon drive mechanism

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1485765A (en) * 1917-08-29 1924-03-04 Addograph Co Ribbon-reversing mechanism
US1876969A (en) * 1927-04-16 1932-09-13 Krell Joseph Machine for printing addresses or other matter on forms or the like
US1945893A (en) * 1931-10-15 1934-02-06 Remington Typewriter Co Typewriting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000413A1 (en) * 1977-07-13 1979-01-24 Philips Patentverwaltung GmbH Drive mechanism for printers, either for progressing or reversing an ink ribbon, or for retracting the printing head

Also Published As

Publication number Publication date
US2627965A (en) 1953-02-10

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