GB1149539A - Improvements in and relating to copying machines - Google Patents

Improvements in and relating to copying machines

Info

Publication number
GB1149539A
GB1149539A GB44691/67A GB4469167A GB1149539A GB 1149539 A GB1149539 A GB 1149539A GB 44691/67 A GB44691/67 A GB 44691/67A GB 4469167 A GB4469167 A GB 4469167A GB 1149539 A GB1149539 A GB 1149539A
Authority
GB
United Kingdom
Prior art keywords
shaft
gear
roller
sheet
rotates
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
GB44691/67A
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1149539A publication Critical patent/GB1149539A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/225—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 using contact-printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L11/00—Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet duplicators" for producing positive copies
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/24—Separating the original from the print
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2700/00—Manifolding, printing or duplicating for office purposes
    • B41P2700/10—Hectographic line duplicators
    • B41P2700/12—Hectographic line duplicators with single master plates

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Abstract

1,149,539. Delivering sheets. RICOH K.K. 15 Aug., 1967 [14 Nov., 1966], No. 44691/67. Divided out of 1,148,087. Heading B6H. [Also in Division G2] In a sheet-separating mechanism operating as described in Specification 1,148,087, the original and copy sheets O, S, after leaving the printing cylinder 1, initially pass between a pair of rollers 8, 9 mounted on respective shafts 20, 21. Roller 8 rotates at the same speed as cylinder 1, but roller 9 rotates at a faster rate, so that the frictional force of roller 9 on copy sheet S causes it to separate from the original O Thus the leading edge of sheet S is then slightly in advance of the leading edge of sheet O, so facilitating entry to the sheet-separating mechanism proper. When sheet S becomes taut between roller 9 and the printing cylinder (position of Fig. 2), a slippage mechanism comes into operation, causing roller 9 to rotate at the same speed as roller 8. This is shown in more detail in Fig. 4. Shafts 20, 21 carry a plurality of rollers 8, 9, staggered as shown. Shaft 20 is driven by a gear-wheel 28 fixed to it. A gearwheel 22 is loosely mounted on shaft 20, and can be frictionally engaged with it by a friction ring 24b. Such engagement is made by forcing gear 22 against ring 24b and gear 28 by a spring- urged pressure-plate 25 acting against the other face of gear 22. The pressure exerted by spring 26 on plate 25 can be varied by a nut 27. Shaft 21 is driven from shaft 20 by engagement of gear 22 with a gear 23 fixed on shaft 20, and since gear 23 is smaller than gear 22, shaft 21 rotates at a faster rate than shaft 20. When, as a result of sheet S becoming taut, roller 9 (and hence shaft 21) is constrained to rotate at the same rate as roller 8 (and hence shaft 20), slippage occurs between gear 22 and shaft 20.
GB44691/67A 1966-08-29 1967-08-15 Improvements in and relating to copying machines Expired GB1149539A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8141666 1966-08-29
JP10489366 1966-11-14
JP502867 1967-01-27

Publications (1)

Publication Number Publication Date
GB1149539A true GB1149539A (en) 1969-04-23

Family

ID=27276563

Family Applications (3)

Application Number Title Priority Date Filing Date
GB44690/67A Expired GB1148640A (en) 1966-08-29 1967-08-15 Improvements in and relating to copying machines
GB44692/67A Expired GB1149540A (en) 1966-08-29 1967-08-15 Improvements in and relating to copying machines
GB44691/67A Expired GB1149539A (en) 1966-08-29 1967-08-15 Improvements in and relating to copying machines

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB44690/67A Expired GB1148640A (en) 1966-08-29 1967-08-15 Improvements in and relating to copying machines
GB44692/67A Expired GB1149540A (en) 1966-08-29 1967-08-15 Improvements in and relating to copying machines

Country Status (4)

Country Link
US (2) US3448980A (en)
DE (1) DE1611537B1 (en)
GB (3) GB1148640A (en)
NL (1) NL139604B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578346A (en) * 1969-01-29 1971-05-11 Parker Hannifin Corp Sealed joint and gasket therefor
JPS5019266B1 (en) * 1970-11-24 1975-07-05
US3921973A (en) * 1971-01-27 1975-11-25 Mita Industrial Co Ltd Apparatus for separating superimposed flexible sheet materials
JPS5719701Y2 (en) * 1975-04-08 1982-04-26
DE2737155A1 (en) * 1977-08-18 1979-02-22 Hoechst Ag SEPARATING AND DEFLECTING DEVICE OF A COPY DEVICE, IN PARTICULAR A LIGHTING MACHINE
DE3501880C1 (en) * 1985-01-22 1986-02-27 Fotoclark Grün GmbH & Co KG, 5309 Meckenheim Separating device for a device for duplicating microfilm or microfiches
DE4332564A1 (en) * 1993-09-24 1995-03-30 Peter Bechmann Method and device for stripping laminated film blanks

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1041795B (en) * 1951-09-04 1958-10-23 Gen Aniline & Film Corp Stripping device for continuously working blueprint machines
GB834732A (en) * 1957-02-06 1960-05-11 Grinten Chem L V D Photographic contact-printing apparatus
US3017179A (en) * 1958-09-09 1962-01-16 American Photocopy Equip Co Sheet separator device
DE1147242B (en) * 1958-09-09 1963-04-18 American Photocopy Equip Co Device for separating sheets
US3025778A (en) * 1959-01-12 1962-03-20 American Photocopy Equip Co Photocopy apparatus and document carrier for same
GB873719A (en) * 1959-04-13 1961-07-26 American Photocopy Equip Co Sheet separator device
US3083959A (en) * 1960-02-02 1963-04-02 Grinten Chem L V D Device for separating by means of friction two superimposed sheets of laminar material
DE1864994U (en) * 1962-11-05 1963-01-03 Internat Photocopy Corp Mit Be CUTTING DEVICE WITH REAR MILLING DISCS WITH 120 ° OFFSET, WHICH ARE TURNED ON AN AXLE.
DE1211489B (en) * 1963-10-30 1966-02-24 Zindler Lumoprint Kg Photographic copier with a device for separating two sheets

Also Published As

Publication number Publication date
DE1611537B1 (en) 1971-04-08
US3448980A (en) 1969-06-10
GB1148640A (en) 1969-04-16
US3493227A (en) 1970-02-03
NL139604B (en) 1973-08-15
NL6711846A (en) 1968-03-01
GB1149540A (en) 1969-04-23

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