GB254185A - Improvements in typewriter operating mechanisms - Google Patents

Improvements in typewriter operating mechanisms

Info

Publication number
GB254185A
GB254185A GB3088825A GB3088825A GB254185A GB 254185 A GB254185 A GB 254185A GB 3088825 A GB3088825 A GB 3088825A GB 3088825 A GB3088825 A GB 3088825A GB 254185 A GB254185 A GB 254185A
Authority
GB
United Kingdom
Prior art keywords
rocking frame
pawls
frame
electromagnet
key
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
GB3088825A
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.)
Individual
Original Assignee
Individual
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 to DE1924P0047739 priority Critical patent/DE424870C/en
Priority to DE1925P0051844 priority patent/DE435853C/en
Application filed by Individual filed Critical Individual
Priority to GB3088825A priority patent/GB254185A/en
Priority to FR607510D priority patent/FR607510A/en
Publication of GB254185A publication Critical patent/GB254185A/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
    • B41J7/00—Type-selecting or type-actuating mechanisms
    • B41J7/02—Type-lever actuating mechanisms

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Switches With Compound Operations (AREA)

Abstract

254,185. Puttemans, H. A. Dec. 7, 1925. Electric relay-actions.-An action adapted for operation by slight depression of the keys comprises a rocking frame connected to the armature of an electromagnet and formed with a comb carrying pawls for coupling the rocking frame to the key-levers after slight depression of the keys. The rocking frame 3 mounted on trunnions 4 is formed at the rear with a comb 16 carrying pawls 1 having ears 11 normally in the path of the key-levers 10. The rocking frame has pin-andfork connection 5' with a lever 6 carrying the armature 7 of an electromagnet 8. One or more springs 22 connected to the rocking frame normally maintain the pawls in contact with projections 20 on a bar 9. On slight depression of any of the keys 13, the associated pawl is rocked and the nose 12 of the pawl engages the keylever and couples it to the frame. The rocking frame thereupon closes the circuit of the electromagnet and completes the depression of the key-lever. The circuit is then broken and the spring 22 returns the rocking frame, the pawl being released by means of one of the projections 20. The rocking frame may be trunnioned on a frame 15 provided with a cross-bar 9 and adapted to be secured in the base of the typewriter. In a modification, the pawls are released by means of projections arranged below the pawls and adapted to engage prolongations of the ears 11.
GB3088825A 1925-12-07 1925-12-07 Improvements in typewriter operating mechanisms Expired GB254185A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE1924P0047739 DE424870C (en) 1925-12-07 1924-03-22 Driving device for typewriters driven by keys
DE1925P0051844 DE435853C (en) 1925-12-07 1925-12-04 Driving device for typewriters driven by keys
GB3088825A GB254185A (en) 1925-12-07 1925-12-07 Improvements in typewriter operating mechanisms
FR607510D FR607510A (en) 1925-12-07 1925-12-07 Command to reduce the keystroke in typewriters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3088825A GB254185A (en) 1925-12-07 1925-12-07 Improvements in typewriter operating mechanisms

Publications (1)

Publication Number Publication Date
GB254185A true GB254185A (en) 1926-07-01

Family

ID=10314689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3088825A Expired GB254185A (en) 1925-12-07 1925-12-07 Improvements in typewriter operating mechanisms

Country Status (3)

Country Link
DE (2) DE424870C (en)
FR (1) FR607510A (en)
GB (1) GB254185A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973163C (en) * 1951-07-21 1959-12-17 Diehl Fa Adding machine
US3669236A (en) * 1970-02-09 1972-06-13 Varityper Corp Keyboard for a printing machine

Also Published As

Publication number Publication date
DE424870C (en) 1926-02-06
FR607510A (en) 1926-07-03
DE435853C (en) 1926-10-18

Similar Documents

Publication Publication Date Title
GB749565A (en) Type bar action
GB1004128A (en) Improvements in or relating to keyboard operated machines
GB254185A (en) Improvements in typewriter operating mechanisms
GB969208A (en) Type lever mechanism for power-driven keyboard-operated office machines
GB341346A (en) Improvements relating to the operation of key levers of typewriting machines
GB448318A (en) Improvements in typewriters
GB900486A (en) A motor-driven typewriting office machine
GB552797A (en) Improvements in or relating to devices for operating the type bars of a typewriter
GB351495A (en) Improvements in or relating to printing mechanism
GB260202A (en) Improvements in back-spacing mechanism for typewriting machines
US2007229A (en) Printing instrumentality for typewriting machines
GB1457323A (en) Key-operated input mechanism for typewriters or similar machines
GB524757A (en) Improvements in the tabulating mechanism of typewriting machines
GB892224A (en) Combined carriage-return and line-spacing mechanism
GB340175A (en) Improved mechanism for actuating the type-bars of typewriting machines
GB932060A (en) A typewriter with half-dead keys
GB197111A (en) Improvements in and relating to typewriters
US1730456A (en) Typewriting machine
US1730457A (en) Typewriting machine
GB342558A (en) Improvements in power-actuated typewriters
GB303060A (en) Improvements in actions for typewriting machines
GB434395A (en) Improvements in and relating to tabulating mechanism for typewriting machines
GB486582A (en) Typewriter with type wheel and normal keyboard
GB308461A (en) Improvements relating to platen-shift mechanism of typewriting machines
GB264668A (en) Improvements in line-spacing mechanism for typewriters