GB534976A - Improvements in keys for typewriting machines - Google Patents

Improvements in keys for typewriting machines

Info

Publication number
GB534976A
GB534976A GB26180/39A GB2618039A GB534976A GB 534976 A GB534976 A GB 534976A GB 26180/39 A GB26180/39 A GB 26180/39A GB 2618039 A GB2618039 A GB 2618039A GB 534976 A GB534976 A GB 534976A
Authority
GB
United Kingdom
Prior art keywords
keys
disc
typewriting machines
group xvi
typewriter
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
GB26180/39A
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.)
Royal Typewriter Co Inc
Original Assignee
Royal Typewriter Co 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
Application filed by Royal Typewriter Co Inc filed Critical Royal Typewriter Co Inc
Publication of GB534976A publication Critical patent/GB534976A/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
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
    • B41J5/12—Construction of key buttons

Landscapes

  • Closures For Containers (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Details Of Measuring And Other Instruments (AREA)

Abstract

534,976. Typewriter key covers. ROYAL TYPEWRITER CO., Inc. Sept. 19, 1939, No. 26180. Convention date, Oct. 1, 1938. Drawings to Specification. [Class 2 (iii)] [Also in Group XVI] Transparent covers for keys for typewriters &c. are made of a methyl methacrylate plastic. The cover comprises a disc having a concave upper surface and held in place by a cap having a flange so shaped as to be flush with the top surface of the disc. Specifications 534,977 and 535,007, [Group XVI], are referred to.
GB26180/39A 1938-10-01 1939-09-19 Improvements in keys for typewriting machines Expired GB534976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US232863A US2211967A (en) 1938-10-01 1938-10-01 Typewriting machine

Publications (1)

Publication Number Publication Date
GB534976A true GB534976A (en) 1941-03-25

Family

ID=22874914

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26180/39A Expired GB534976A (en) 1938-10-01 1939-09-19 Improvements in keys for typewriting machines

Country Status (2)

Country Link
US (1) US2211967A (en)
GB (1) GB534976A (en)

Also Published As

Publication number Publication date
US2211967A (en) 1940-08-20

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