US1365572A - Printing-block for block-printing machines - Google Patents

Printing-block for block-printing machines Download PDF

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Publication number
US1365572A
US1365572A US427994A US42799420A US1365572A US 1365572 A US1365572 A US 1365572A US 427994 A US427994 A US 427994A US 42799420 A US42799420 A US 42799420A US 1365572 A US1365572 A US 1365572A
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United States
Prior art keywords
block
printing
machines
wood pulp
printing machines
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Expired - Lifetime
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US427994A
Inventor
William H Waldron
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Individual
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Individual
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Priority to US427994A priority Critical patent/US1365572A/en
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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
    • B41F27/04—Devices for attaching printing elements or formes to supports for attaching printing elements to flat type-beds

Definitions

  • the obj ect of my invention is to provide a printing block for block printing machines which will not warp and which can be made ready in the machine very quickly.
  • Figure l is a perspective view of a printing block for a block printing machine7 made in accordance with my invention.
  • Fig. 2 is a sectional view of a portion of the block.
  • l is a metal plate, preferably of steel and made true and 2 is a block of pressed wood pulp which is secured to the metal plate by screws 3 or other fastenings so as to firmly secure the wood pulp block to the plate.
  • the steel plate is made heavy and as the block 2 is made of wood pulp is not liable to warp so that the block remains true under all conditions.
  • the wood pulp block 2 can he cut in engraving the design in the same manner as a wooden block and after the block has been located in the iat block printing machine, very little trouble is found in making ready so that it will make the proper impression.
  • a printing block for block printing machines having a metallic back and a pressed wood pulp face firmly secured to the back.

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  • Printing Plates And Materials Therefor (AREA)

Description

W. H. WJALRON.` PRHHING BLOCK FOR BLOCK PRSWDNG MACHHIES.
' APPLICATION man 59.119241 f 1,365-, s Patented. Jan. 11, 1,921.
UNITED STATES PATENT OFFICE.
PRINTING-BLOCK FOR BLQCK-PRINTING MACHINES.
Specification of Letters Patent.
Patented. Jan. 11, 1921.
Application filed December 3, 1920. Serial No. 427,994.
To @ZZ whom t may concern Be it known that I, WILLIAM H. WAL- nnoN, a citizen of the United States, residing in New Brunswick, NewV Jersey, have invented certain Improvements in Printing- Blocks for Block-Printing Machines, of which the following is a specication.
The obj ect of my invention is to provide a printing block for block printing machines which will not warp and which can be made ready in the machine very quickly.
This object I attain in the following manner:
Figure l is a perspective view of a printing block for a block printing machine7 made in accordance with my invention;
Fig. 2 is a sectional view of a portion of the block.
l is a metal plate, preferably of steel and made true and 2 is a block of pressed wood pulp which is secured to the metal plate by screws 3 or other fastenings so as to firmly secure the wood pulp block to the plate. The steel plate is made heavy and as the block 2 is made of wood pulp is not liable to warp so that the block remains true under all conditions. The wood pulp block 2 can he cut in engraving the design in the same manner as a wooden block and after the block has been located in the iat block printing machine, very little trouble is found in making ready so that it will make the proper impression.
I claim:
A printing block for block printing machines having a metallic back and a pressed wood pulp face firmly secured to the back.
WILLIAM H. WALDRON.
US427994A 1920-12-03 1920-12-03 Printing-block for block-printing machines Expired - Lifetime US1365572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US427994A US1365572A (en) 1920-12-03 1920-12-03 Printing-block for block-printing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US427994A US1365572A (en) 1920-12-03 1920-12-03 Printing-block for block-printing machines

Publications (1)

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US1365572A true US1365572A (en) 1921-01-11

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ID=23697141

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US427994A Expired - Lifetime US1365572A (en) 1920-12-03 1920-12-03 Printing-block for block-printing machines

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107521220A (en) * 2017-09-29 2017-12-29 江门市祥耀彩印有限公司 A kind of die fixture of printing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107521220A (en) * 2017-09-29 2017-12-29 江门市祥耀彩印有限公司 A kind of die fixture of printing machine

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