GB340861A - Improved power-mechanism for actuating typewriting machines - Google Patents

Improved power-mechanism for actuating typewriting machines

Info

Publication number
GB340861A
GB340861A GB667630A GB667630A GB340861A GB 340861 A GB340861 A GB 340861A GB 667630 A GB667630 A GB 667630A GB 667630 A GB667630 A GB 667630A GB 340861 A GB340861 A GB 340861A
Authority
GB
United Kingdom
Prior art keywords
lever
key
detent
spring
stop
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
GB667630A
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.)
ELECTROMATIC TYPEWRITERS Inc
Original Assignee
ELECTROMATIC TYPEWRITERS Inc
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 US272155A priority Critical patent/US1777056A/en
Application filed by ELECTROMATIC TYPEWRITERS Inc filed Critical ELECTROMATIC TYPEWRITERS Inc
Priority to GB667630A priority patent/GB340861A/en
Priority to FR691737D priority patent/FR691737A/en
Publication of GB340861A publication Critical patent/GB340861A/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
    • B41J23/00—Power drives for actions or mechanisms
    • B41J23/02—Mechanical power drives
    • B41J23/12—Mechanism driven by cams engaging rotating roller

Landscapes

  • Mechanical Operated Clutches (AREA)
  • Handling Of Cut Paper (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

340,861. Typewriters. WADE, H., 111, Hatton Garden, London.-(Electromatic Typewriters, Inc. ; 60, Commercial Street, Rochester, New York, U.S.A.) Feb. 28, 1930, No. 6676. [Class 100 (iv).] Relay-actions.-In actions comprising a lever provided with a key-controlled cam co-operating with a driving-roller, (i) two like cams connected by a pivot are arranged on opposite sides of the lever, the arrangement causing the drive to be transmitted in the plane of the lever, and (ii) the cam may be controlled by a detent provided with a returning-spring and having lost-motion engagement with a key-lever so that the detent is normally operated by a substantial movement of the key-lever, but can be operated repeatedly without allowing the key-lever to return fully. In the mechanism shown in Figs. 1 and 6, two like cams 20, 21 are arranged close to and on opposite sides of a sheetmetal lever 12 and are connected by a pivot 24 having an enlargement 25 mounted in the lever. The lever rocks on a rod 13 and is connected by a link 15 to a type-bar or other part. The cam 21 has an elongated hub 23 co-operating with a spring- urged arm 26 loosely mounted on a pivot 11 on the lever. The cam 20 has stops 32 co-operating with stops 30, 31 on a detent 29 which is secured to the pin 11 and has a finger 33 having lost-motion engagement with the forked end 35 of a key-lever 16. A returning-spring 36 normally holds the finger in contact with one side of a hole 34 in the lever. On depression of the key-lever, the stop 30 is released from one of the stops 32, the arm 26 moves the cams into engagement with the roller, and the lever is rocked, movement continuing until the other stop 32 is arrested by the stop 31. On release of the keylever, it is returned into contact with an adjustable stop 38 by a spring 37, the detent is returned by the spring 36, and the arm 26 turns the cams slightly until they are arrested by the stop 30. The lost-motion connection 33, 35 permits of substantial depression of the key-lever before the detent is operated, and in repeated operation, the key-lever need not return to the normal position, since the detent is returned independently by the spring 36.
GB667630A 1928-04-23 1930-02-28 Improved power-mechanism for actuating typewriting machines Expired GB340861A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US272155A US1777056A (en) 1928-04-23 1928-04-23 Power mechanism
GB667630A GB340861A (en) 1930-02-28 1930-02-28 Improved power-mechanism for actuating typewriting machines
FR691737D FR691737A (en) 1928-04-23 1930-03-11 Motor mechanism, for typewriters and other similar applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB667630A GB340861A (en) 1930-02-28 1930-02-28 Improved power-mechanism for actuating typewriting machines

Publications (1)

Publication Number Publication Date
GB340861A true GB340861A (en) 1931-01-08

Family

ID=9818767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB667630A Expired GB340861A (en) 1928-04-23 1930-02-28 Improved power-mechanism for actuating typewriting machines

Country Status (1)

Country Link
GB (1) GB340861A (en)

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