GB355497A - Improvements in or relating to duplicators - Google Patents

Improvements in or relating to duplicators

Info

Publication number
GB355497A
GB355497A GB2429330A GB2429330A GB355497A GB 355497 A GB355497 A GB 355497A GB 2429330 A GB2429330 A GB 2429330A GB 2429330 A GB2429330 A GB 2429330A GB 355497 A GB355497 A GB 355497A
Authority
GB
United Kingdom
Prior art keywords
frame
trunnions
plates
slots
bed
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
GB2429330A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2429330A priority Critical patent/GB355497A/en
Publication of GB355497A publication Critical patent/GB355497A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0804—Machines for printing sheets
    • B41F15/0813—Machines for printing sheets with flat screens
    • B41F15/0818—Machines for printing sheets with flat screens with a stationary screen and a moving squeegee
    • B41F15/0822—Machines for printing sheets with flat screens with a stationary screen and a moving squeegee on a stack of sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)

Abstract

355,497. Stencil-printing apparatus. HORII, S., 3, Kajicho, Kanda-ku, Tokio, Aug. 13, 1930, No. 24293. [Class 100 (ii).] In a duplicator of the kind comprising a flat sheet-supporting bed 1 and a hinged stencil-carrying frame 4, the frame 4 is provided with trunnions 6 engaging in open slots 3 in brackets 2 secured to the bed 1 so that the frame is removable when in its raised position, and locking-plates 7 pivoted at 8 to the brackets 2 are adapted to embrace and hold the trunnions in an automatically-adjusted position of the trunnions when the frame 4 is in its closed position and to release the trunnions when the frame is lifted. As shown, each plate 7 is provided with a cam slot 9 engaging a trunnion 6, and as the frame 4 is swung down pins 10 thereon engage arms 11 projecting from the plates 7 and move the plates into locking position against the action of springs 12 ; the curvature of the slots 9 is such that the position of the trunnions is automatically adjusted in accordance with the height of the pile of sheets on the bed 1. In a modification, the pivots 8 are mounted in vertical slots and are pressed downwardly by springs whereby a wider range of adjustment of the plates 7 is provided; also, in this construction, the slots may be concentric with the pivot 8 instead of cam-shaped.
GB2429330A 1930-08-13 1930-08-13 Improvements in or relating to duplicators Expired GB355497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2429330A GB355497A (en) 1930-08-13 1930-08-13 Improvements in or relating to duplicators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2429330A GB355497A (en) 1930-08-13 1930-08-13 Improvements in or relating to duplicators

Publications (1)

Publication Number Publication Date
GB355497A true GB355497A (en) 1931-08-27

Family

ID=10209393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2429330A Expired GB355497A (en) 1930-08-13 1930-08-13 Improvements in or relating to duplicators

Country Status (1)

Country Link
GB (1) GB355497A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362730A1 (en) 1976-08-26 1978-03-24 Riso Kagaku Corp PERFORATION AND PRINTING DEVICE USING THERMAL PATTERNS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362730A1 (en) 1976-08-26 1978-03-24 Riso Kagaku Corp PERFORATION AND PRINTING DEVICE USING THERMAL PATTERNS

Similar Documents

Publication Publication Date Title
GB788685A (en) Improvements in or relating to a vehicle chassis frame engaging unit for vehicle hoists
GB355497A (en) Improvements in or relating to duplicators
US2235463A (en) Photographic enlarging easel
US2545964A (en) Photographic copy board
GB394248A (en) Improvements in or relating to duplicators
GB1378952A (en) Apparatus for registering half-tone negatives with sheet films for producing half-tone plates for use in polychrome printing
US2200719A (en) Apparatus for making photoprints
US1777920A (en) Duplicator
US2269199A (en) Duplicator
US2346329A (en) Photographic printing device
US2189043A (en) Printing transferring machine
US1898223A (en) Filing cabinet
ES388554A1 (en) Stacking of sheets
US1951934A (en) Duplicator
GB370702A (en) Plate-holder for photographic cameras
GB293562A (en) Improvements in paper holders for photographic apparatus
GB375628A (en) Improvements in or relating to hinges
DE409922C (en) Device for holding the photosensitive support for photographic reproduction purposes
GB549782A (en) Method of and apparatus for preparing facsimile master copies
GB398986A (en) Improvements in manifolding apparatus
GB424064A (en) Improvements in and relating to duplicating devices
GB164044A (en) Improved stencil printing apparatus
GB221971A (en) Improvements in or relating to water closet seats
US2158284A (en) Printing machine
GB387101A (en) Reversible hinge