GB767373A - Sheet feeding mechanism for typewriters or like machines - Google Patents

Sheet feeding mechanism for typewriters or like machines

Info

Publication number
GB767373A
GB767373A GB4197/55A GB419755A GB767373A GB 767373 A GB767373 A GB 767373A GB 4197/55 A GB4197/55 A GB 4197/55A GB 419755 A GB419755 A GB 419755A GB 767373 A GB767373 A GB 767373A
Authority
GB
United Kingdom
Prior art keywords
cylinder
rollers
sheet feeding
work
roller
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
GB4197/55A
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 Mcbee Corp
Original Assignee
Royal Mcbee 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 Royal Mcbee Corp filed Critical Royal Mcbee Corp
Publication of GB767373A publication Critical patent/GB767373A/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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/02—Rollers
    • B41J13/036—Rollers co-operating with a roller platen
    • B41J13/042—Front and rear rollers or sets of front or rear rollers each mounted on a separate carrier

Landscapes

  • Delivering By Means Of Belts And Rollers (AREA)
  • Handling Of Cut Paper (AREA)

Abstract

767,373. Sheet feeding mechanism for typewriters &c. ROYAL McBEE CORPORATION. Feb. 11, 1955 [March 29, 1954], No. 4197/55. Class 100(4) A typewriter comprises a platen or work-sheet feeding cylinder A journaled on end plates 1, 2 of a carriage or support frame B, a rear work-sheet introductory-feed-roll 6, mounted for rotation about an axis parallel to that of cylinder A and spaced therefrom so that worksheet material introduced between them is gripped, and work-sheet-propelling rollers 7, 8, 9 all journaled for rotation about an axis parallel to that of cylinder A and circumferentially displaced in the direction of sheet feeding with respect to the cylinder A from the rollers 6. The relative frictional sheet feeding characteristics of the rollers 7, 8, 9 and roller 6 are such that the sheet feeding tendency of the rollers 7, 8, 9 is greater than that of the roller 6. The work-sheet material is consequently gripped with more pressure between cylinder A and roller 6 than between rollers 7, 8, 9 and the cylinder. For this purpose the roller 6 may be formed of relatively hard material such as polished aluminium, having a Rockwell B scale hardness of 66- 68, and the propelling rollers 7, 8 and 9 are of soft resilient rubber having a Durometer hardness with 40-50 and a high coefficient of friction. The roller 6 is pressed against cylinder A by springs 30, 31 acting on rear edges of arms 24, 25 in which shaft 23 of the roll is supported. This pressure may be adjusted by nuts 32 on bolts 33, 34, and may be in the range of 1“ to 1¢ lbs. The front pressure feed rollers 7, 8 and 9 are pressed against the work by separate independently adjustable mechanisms E of known kind which act on arms 59, 60, 61 and press feed rolls 7, 8, 9 against the work-sheet material between these rolls and sheet feeding cylinder A. Top or bail rolls 15 formed of the same material as the rolls 7, 8, 9 may be carried by a bail 16 pivoted on the end plates 1, 2 to assist in holding the worksheets against the cylinder A.
GB4197/55A 1954-03-29 1955-02-11 Sheet feeding mechanism for typewriters or like machines Expired GB767373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US419304A US2767821A (en) 1954-03-29 1954-03-29 Sheet feeding mechanism for typewriters or like machines

Publications (1)

Publication Number Publication Date
GB767373A true GB767373A (en) 1957-01-30

Family

ID=23661674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4197/55A Expired GB767373A (en) 1954-03-29 1955-02-11 Sheet feeding mechanism for typewriters or like machines

Country Status (4)

Country Link
US (1) US2767821A (en)
CH (1) CH326581A (en)
FR (1) FR1123700A (en)
GB (1) GB767373A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292762A (en) * 1962-06-01 1966-12-20 Sperry Rand Corp Sheet feed mechanism
US4297045A (en) * 1979-09-21 1981-10-27 International Business Machines Corporation Paper feed system for a typewriter or the like
JP2740215B2 (en) * 1988-12-20 1998-04-15 三洋電機株式会社 Thermal transfer recording device
US5192141A (en) * 1991-05-02 1993-03-09 Tidemark Corporation Multi-dimensional media printer with media based registration and free edge printing
JPH0986705A (en) * 1995-07-18 1997-03-31 Mitsubishi Electric Corp Automatic paper feeder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US975228A (en) * 1910-01-14 1910-11-08 Underwood Typewriter Co Type-writing machine.
US1247456A (en) * 1917-04-28 1917-11-20 Royal Typewriter Co Inc Paper-feed roll for writing-machines.
US1367784A (en) * 1919-06-18 1921-02-08 Underwood Typewriter Co Typewriting-machine
US1444385A (en) * 1921-05-25 1923-02-06 Remington Typewriter Co Typewriting machine
US2328624A (en) * 1940-12-28 1943-09-07 Ibm Typewriting machine

Also Published As

Publication number Publication date
FR1123700A (en) 1956-09-25
CH326581A (en) 1957-12-31
US2767821A (en) 1956-10-23

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