GB717892A - Improvements in or relating to a power mechanism for typewriters and like machines - Google Patents

Improvements in or relating to a power mechanism for typewriters and like machines

Info

Publication number
GB717892A
GB717892A GB25965/52A GB2596552A GB717892A GB 717892 A GB717892 A GB 717892A GB 25965/52 A GB25965/52 A GB 25965/52A GB 2596552 A GB2596552 A GB 2596552A GB 717892 A GB717892 A GB 717892A
Authority
GB
United Kingdom
Prior art keywords
parts
power
typewriters
lever
sub
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
GB25965/52A
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 GB717892A publication Critical patent/GB717892A/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
    • B41J7/92—Impact adjustment; Means to give uniformity of impression
    • B41J7/94—Character-by-character adjustment

Landscapes

  • Common Mechanisms (AREA)
  • Transmission Devices (AREA)

Abstract

717,892. Typewriters. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 16, 1952 [Dec. 17, 1951], No. 25965/52. Addition to 660,263. Class 100 (4). In a power mechanism for a typewriter, as described in the parent Specification, the cam element 17 is formed of two parts pivoted together; one part 17b has a tread surface 17h for engaging the power-roller 10 and the other part 17a is pivotally mounted at 11a on a typeaction sub-lever 11. Part 17b s spring-urged into contact with an adjusting screw 17g in the part 17a and is accessible from above so that the arc of the tread 17h can be varied relative to the pivot 11a and so that the actuating movement imparted to the sub-lever 11 may be altered. Clockwise adjustment of the part 17b also causes an increase in the initial acceleration of the parts 17a, 17b when engaged by the power-roll. The parts 17a, 17b are of thin construction and formed from plastic, e.g. nylon. A projection 17d thereon coacts with a recess 17e to assist in keeping the two parts in alignment.
GB25965/52A 1951-12-17 1952-10-16 Improvements in or relating to a power mechanism for typewriters and like machines Expired GB717892A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US262083A US2717685A (en) 1951-12-17 1951-12-17 Adjustable power operating mechanism for typewriting machines

Publications (1)

Publication Number Publication Date
GB717892A true GB717892A (en) 1954-11-03

Family

ID=22996087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25965/52A Expired GB717892A (en) 1951-12-17 1952-10-16 Improvements in or relating to a power mechanism for typewriters and like machines

Country Status (4)

Country Link
US (1) US2717685A (en)
DE (1) DE969022C (en)
FR (1) FR1067732A (en)
GB (1) GB717892A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753972A (en) * 1952-01-25 1956-07-10 Torpedo Werke Ag Power drive for typewriting office machines
US2830688A (en) * 1953-06-01 1958-04-15 L C Smith & Corona Typewriters Power actuated typing mechanism for business machines
DE1076714B (en) * 1954-10-25 1960-03-03 Adlerwerke Kleyer Ag H Device for regulating the strike strength of the types on power-driven typewriters, accounting machines and the like. like
US3237746A (en) * 1961-07-06 1966-03-01 Alpina Buromaschinen Werk G M Typewriter drive cam having rounded engaging surface
DE1192216B (en) * 1962-10-13 1965-05-06 Grundig Max Cam drive lever for type lever gear of typewriters or similar machines
US3300018A (en) * 1963-06-04 1967-01-24 Royal Typewriter Co Inc Type bar action having combined cam latching and driving lever
US3259223A (en) * 1964-09-21 1966-07-05 Ibm Impression control apparatus employing two sets of stops
DE1927227U (en) * 1965-10-02 1965-11-18 Olympia Werke Ag COUPLING FOR POWER-DRIVEN WRITING OR SIMILAR MACHINERY.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE288852C (en) *
DE289845C (en) *
GB190303617A (en) * 1903-02-16 1903-04-23 Horace Mcgowan Improvements in Linotype Machines.
US791166A (en) * 1904-12-24 1905-05-30 Mergenthaler Linotype Gmbh Linotype-machine.
DE293257C (en) * 1913-10-18
US1173321A (en) * 1914-07-22 1916-02-29 Titania Schreibmaschinen Ges M B H Power-operated type-writer.
US1227846A (en) * 1916-10-19 1917-05-29 James F Smathers Type-writing machine.
AT102337B (en) * 1924-11-07 1926-01-11 Franz Knotz Motorized typewriter.
US1828755A (en) * 1928-11-10 1931-10-27 Underwood Elliott Fisher Co Typewriting machine
US1924140A (en) * 1930-10-11 1933-08-29 Underwood Elliott Fisher Co Typewriting machine
GB552797A (en) * 1941-03-08 1943-04-23 Franz Zwonicek Improvements in or relating to devices for operating the type bars of a typewriter
US2453287A (en) * 1944-10-07 1948-11-09 Ibm Power operating mechanism for typewriting machines
FR964983A (en) * 1947-06-05 1950-08-30

Also Published As

Publication number Publication date
US2717685A (en) 1955-09-13
FR1067732A (en) 1954-06-17
DE969022C (en) 1958-05-08

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