GB885687A - Improvements relating to typewriters and the like machines - Google Patents

Improvements relating to typewriters and the like machines

Info

Publication number
GB885687A
GB885687A GB1872557A GB1872557A GB885687A GB 885687 A GB885687 A GB 885687A GB 1872557 A GB1872557 A GB 1872557A GB 1872557 A GB1872557 A GB 1872557A GB 885687 A GB885687 A GB 885687A
Authority
GB
United Kingdom
Prior art keywords
key
switch
solenoid
platen
june
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
GB1872557A
Inventor
Jack Watts
Geoffrey Leslie Taperell
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.)
W H Smith & Son Alacra Ltd
Original Assignee
W H Smith & Son Alacra Ltd
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 W H Smith & Son Alacra Ltd filed Critical W H Smith & Son Alacra Ltd
Priority to GB1872557A priority Critical patent/GB885687A/en
Priority to FI103258A priority patent/FI40386B/fi
Publication of GB885687A publication Critical patent/GB885687A/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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
    • B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
    • B41J11/44—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering by devices, e.g. programme tape or contact wheel, moved in correspondence with movement of paper-feeding devices, e.g. platen rotation

Abstract

885,687. Typewriters. SMITH & SON (ALACRA) Ltd., W. H. June 11, 1958 [June 13, 1957], No. 18725/57. Class 100(4) In a typewriter or like machine a platen is driven by a constantly rotating electric motor in synchronism with a tape 18 driven by a pin wheel 16 on the platen shaft. Initial manual depression of a key 10 causes line spacing and carriage return while full depression closes a switch 25 in series with a switch 20 and a solenoid 24 which when energized holds the key fully depressed to cause continuous rotation of the platen shaft. At a predetermined position a notch in the tape 18 opens the switch 20 to de-energize the solenoid 24 to stop the platen feed. After one line spacing the switch 20 is again closed and a long feed can again be started by full depression of the key 10. The solenoid may hold the key directly or through a latch while its engagement may be mechanically prevented except when the key is fully depressed in which case the switch 25 may be omitted. In a modification the solenoid or an additional solenoid may be provided to over-rule pressure on the key, thus preventing over-run. The invention may be applied to the typing part of a teleprinter. Specifications 408,125 and 875,141 are referred to.
GB1872557A 1957-06-13 1957-06-13 Improvements relating to typewriters and the like machines Expired GB885687A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1872557A GB885687A (en) 1957-06-13 1957-06-13 Improvements relating to typewriters and the like machines
FI103258A FI40386B (en) 1957-06-13 1958-06-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1872557A GB885687A (en) 1957-06-13 1957-06-13 Improvements relating to typewriters and the like machines

Publications (1)

Publication Number Publication Date
GB885687A true GB885687A (en) 1961-12-28

Family

ID=10117342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1872557A Expired GB885687A (en) 1957-06-13 1957-06-13 Improvements relating to typewriters and the like machines

Country Status (2)

Country Link
FI (1) FI40386B (en)
GB (1) GB885687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134890A (en) * 1983-02-07 1984-08-22 Eastman Kodak Co Continuous form feeder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134890A (en) * 1983-02-07 1984-08-22 Eastman Kodak Co Continuous form feeder
US4488670A (en) * 1983-02-07 1984-12-18 Eastman Kodak Company Continuous form feeder

Also Published As

Publication number Publication date
FI40386B (en) 1968-09-30

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