US423691A - Bed for zinc printing-plates - Google Patents

Bed for zinc printing-plates Download PDF

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Publication number
US423691A
US423691A US423691DA US423691A US 423691 A US423691 A US 423691A US 423691D A US423691D A US 423691DA US 423691 A US423691 A US 423691A
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Prior art keywords
plates
bed
zinc
printing
zinc printing
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Expired - Lifetime
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
    • B41F27/1231—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially tangential to support surface

Definitions

  • This invention relates to improvements in beds for holding and supporting zinc plates used in the art of lithography.
  • the object of my invention is to provide a new and improved bed on which the zinc v plate can be held securely and stretched so em in section on line 2 2, Fig. 1.
  • Figure 1 is a vertical longitudinal sectional. elevation of my improved zinc bed.
  • Fig. 2 is a plan View D.
  • the other end of thezincplate is passed over aroller E, mounted to turn in a groove in the front edge of the bed, and is clamped between two plates G and H by means of screws J, which plates are arranged at the front of the bed and are provided with guidepins K, passing through vertical slots L in the front of the bed and provided at their inner ends with heads L which heads prevent the plates from being moved from the front of the bed, or tilting.
  • the plate H is provided at each end with alateral projection or wing M, and above the same the bed A is provided with an upright cylindrical bracket N, in which a screw 0 is mounted to turn, said screw having a square or other suitable upper end.
  • OSCAR F GUNZ, JOHN A. STRALEY.

Description

E. JAEGK. BED FOR ZINC PRINTING PLATES.
Patented Mar. 18, 1-890.
(No Model.)
' Jzvvmran ATTORNEYS? pl I!!! I l i I N. PETERS. Phoh-Lmwgnp mr, Wunmgton, D. G.
' To all whom it may concern:
UNITED STATES;
PATENT OFFICE.
EMILE JAEOK, OFBROOKLYN, NEW YORK...
BED FOR ZlNCPRINTlNG-PLATES.
SPECIFICATION formingpart of Letters Patent No. 423,691, dated March 18, 1890.
Application filed November 15, 1889. Serial No. 330,400. (No model.) 7
Be it known that I, EMILE J AECK, of Brookl yn,in the county of Kings and State of New York,,a citizen of the United States, have in-- vented certain new and useful Improvements in Beds for Zinc Printing-Plates, of whic the following is a specification.
This invention relates to improvements in beds for holding and supporting zinc plates used in the art of lithography.
The object of my invention is to provide a new and improved bed on which the zinc v plate can be held securely and stretched so em in section on line 2 2, Fig. 1.
as to fit snugly on the top-of the bed.
The invention consists in the construction and combination of parts and details, as will be fully described and set forth herein-after, and pointed out in the claims,
In the accompanying drawings, Figure 1 is a vertical longitudinal sectional. elevation of my improved zinc bed. Fig. 2 is a plan View D. The other end of thezincplate is passed over aroller E, mounted to turn in a groove in the front edge of the bed, and is clamped between two plates G and H by means of screws J, which plates are arranged at the front of the bed and are provided with guidepins K, passing through vertical slots L in the front of the bed and provided at their inner ends with heads L which heads prevent the plates from being moved from the front of the bed, or tilting. The plate H is provided at each end with alateral projection or wing M, and above the same the bed A is provided with an upright cylindrical bracket N, in which a screw 0 is mounted to turn, said screw having a square or other suitable upper end. After the zinc sheet B hasbeen securely clamped between the plates G and H the" screws 0 are turned so as to exert downward pressure on'the wings M, thereby drawing the plates G and H downward, whereby the zinc sheet is stretched snugly over the top of the base A. The sheets can be applied easily and rapidly, and when they are to be detached can easily be released and removed.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a bed for zinc plates,.the combination, with a base-plate or bed, of clamping-plates guided on one of thesides of the base to move vertically, one of said clamping-plates being provided with end win gs, bracketson the'baseplate above said wings, and screws in said brackets, substantially as set forth. 7 2. The combination, with a base-plate having vertical slots in its: sides, of clamping plates arranged adjacent to said verticallyslotted side, headed gui'de-pinsproj ectingfrom my invention I have signed myname inpresence of two subscribing witnesses.-
EMILE J AEOK.
WV-itnesses:
OSCAR F. GUNZ, JOHN A. STRALEY.
US423691D Bed for zinc printing-plates Expired - Lifetime US423691A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60109804A (en) * 1983-10-03 1985-06-15 ゼネラル・エレクトリツク・カンパニイ Method of blending high-viscosity silicon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60109804A (en) * 1983-10-03 1985-06-15 ゼネラル・エレクトリツク・カンパニイ Method of blending high-viscosity silicon

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