US1527299A - Printing press - Google Patents

Printing press Download PDF

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Publication number
US1527299A
US1527299A US711057A US71105724A US1527299A US 1527299 A US1527299 A US 1527299A US 711057 A US711057 A US 711057A US 71105724 A US71105724 A US 71105724A US 1527299 A US1527299 A US 1527299A
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United States
Prior art keywords
pin
bed
holes
printing press
body portion
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Expired - Lifetime
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US711057A
Inventor
Horace W Hacker
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.)
HACKER Manufacturing CO
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HACKER Manufacturing CO
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 HACKER Manufacturing CO filed Critical HACKER Manufacturing CO
Priority to US711057A priority Critical patent/US1527299A/en
Application granted granted Critical
Publication of US1527299A publication Critical patent/US1527299A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • HACKER CHICAGG
  • ILLINOIS ASSIGNOR 'IO HACKER MANUFACTURING (30., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.
  • My invention relates to printing presses that are employed in color printing and which are provided with normally station ary registering pins in their plate supporting beds which serve, in conjunction with movable pins, to locate each plate of a series successively in exactly the same loca tion.
  • These normally stationary pins are, in recent forms of presses, shit-table from place to place. Pincers have been employed to grip the projecting printing plate engaging ends of these pins for this purpose. with the result that the pins would become marred and rendered incapable of exactly position- .ing the plates.
  • the body portion of the noru'ially stationary pin has a reduced portion near and larger than the projection portion for the re ception of a removing tool.
  • the pin receiving hole in the bed is laterally extended where the pin projects to afford access for the tool.
  • Fig. 1 is a plan view of a portion of press having a plate supporting bed therein that carries plate positioning pins;
  • Fig. 2 is a sectional view on line 22 of Fig. 1;
  • Fig. 3 is a plan view, 011 a larger scale, of a part of the bed;
  • Fig. 4 is a view, on a larger scale, of a part of the structure as it appears in Fig. 2;
  • Fig. :3 illustrates the method of dislodging the normally stationary pin.
  • the plate supporting bed 1 may be fastened upon the reciprocating member 2 of the press by any suitable means, such as the bolts 3.
  • the bed is formed with a number of holes l, one ot these holes being selected for the location of a pin 5 that is permanent tor a given series of impositions of printing plates 6.
  • the bed is formed with a long groove which receives a block 8 that carries a pin 9. This block is adjustable in the groove so that after the fixedly placed pin 5 is snugly received in a selected hole 45 in the bed, the other pin 9 may be easily adjusted to enter another hole in the plate. whereby the plate is exactly held on the bed.
  • Each pin has a larger body portion 10 intended to be coaxial with the reduced portion, but sometimes being out of true. it the pin.
  • the pin body portion is formed with one or more annular grooves 13 adjacent the reduced projecting end of the pin 5 and the pin receiving holes l are laterally extended where the pin projects as indicated at 14-, whereby adislodging tool 15 may be employed as indicated in Fig. 5.

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Description

Feb. 24, 1925. I I 1,527,299
H. W. HACKER PRINTING PRESS Filed May 5, 1.924
Patented Feb. 24, 1925.
pairs srares HORACE W. HACKER, CHICAGG, ILLINOIS, ASSIGNOR 'IO HACKER MANUFACTURING (30., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.
PRINTING PRESS.
Application filed May 5, 1924. Serial No. 711,057.
To all 4.0710122 it may, concern:
Be it known that I, Honnon 1V. HACKER, a citizen of the United States, residing at Cl 'cago, in the county of Cool; and the State of Illinois. have invented a certain new and useful Improvement in Printing Presses, of which the following is a full, clear, concise, and exact description.
My invention relates to printing presses that are employed in color printing and which are provided with normally station ary registering pins in their plate supporting beds which serve, in conjunction with movable pins, to locate each plate of a series successively in exactly the same loca tion. These normally stationary pins are, in recent forms of presses, shit-table from place to place. Pincers have been employed to grip the projecting printing plate engaging ends of these pins for this purpose. with the result that the pins would become marred and rendered incapable of exactly position- .ing the plates. To obviate this undesirable result, the body portion of the noru'ially stationary pin has a reduced portion near and larger than the projection portion for the re ception of a removing tool. The pin receiving hole in the bed is laterally extended where the pin projects to afford access for the tool.
It sometimes happens that the projecting portion of the pin is not exactly coaxial with the body portion. I provide registering or complen ental indices upon the pin and the bed at the various holes which may receive the pin, so that the projecting portion of the pin may be easily brought to similar locations in the various holes.
The invention will be more fully eX- plained in connection. with the accompanying drawing in which Fig. 1. is a plan view of a portion of press having a plate supporting bed therein that carries plate positioning pins;
Fig. 2 is a sectional view on line 22 of Fig. 1;
Fig. 3 is a plan view, 011 a larger scale, of a part of the bed;
Fig. 4 is a view, on a larger scale, of a part of the structure as it appears in Fig. 2; and
Fig. :3 illustrates the method of dislodging the normally stationary pin.
The plate supporting bed 1 may be fastened upon the reciprocating member 2 of the press by any suitable means, such as the bolts 3.
The bed is formed with a number of holes l, one ot these holes being selected for the location of a pin 5 that is permanent tor a given series of impositions of printing plates 6. The bed is formed with a long groove which receives a block 8 that carries a pin 9. This block is adjustable in the groove so that after the fixedly placed pin 5 is snugly received in a selected hole 45 in the bed, the other pin 9 may be easily adjusted to enter another hole in the plate. whereby the plate is exactly held on the bed. Each pin has a larger body portion 10 intended to be coaxial with the reduced portion, but sometimes being out of true. it the pin. that is out of true is not located similarly in each of the holes .4: in the bed designed to snugly receive the body portion, the plates may be thrown out of register. I therefore form the bed at the pin receiving holes and the pin with registering or complement-a1 indices 11, 12.
The pin body portion is formed with one or more annular grooves 13 adjacent the reduced projecting end of the pin 5 and the pin receiving holes l are laterally extended where the pin projects as indicated at 14-, whereby adislodging tool 15 may be employed as indicated in Fig. 5.
Having thus described my claim 1. The combination with. a printing press bed,- of an upright pin having a body por tion slidably received in holes that are formed in the bed and a reduced portion projecting above the bed, the body protion having a reduced portion near and larger than the projecting portion for the reception of a removing toolf 2. The combination with a printing press bed; of an upright pin having a body portion slidably received in holes that are formed in the bed and a reduced portion projecting above the bed, the body portion having a groove adjacent the projecting portion to provide a tool engaging portion.
3. The combination with a printing press bed; of an upright pin having a body portion slidably received in holes that are formed in the bed and a reduced portion projecting above the bed, the body portion having a reduced portion near and larger than the projecting portion for the recepinvention, I
tion of n removing tool; the pin receivinp; holes in the bed being laterally extended where the pin projects to afford access "for the tool.
l. The combination with a printing press bed; of an upright pin having a body portion slidahly received in holes that are formed in the bed and a reduced portion projecting above the bed the body portion having it groove adjacent the projecting 10 portion to provide a tool engaging portion; the pin receiving holes in the bed being laterally extended Where the pin projects to afford access for the tool.
In Witness whereof, I hereunto sub- 15 scribe my name.
HORACE W. HACKER.
US711057A 1924-05-05 1924-05-05 Printing press Expired - Lifetime US1527299A (en)

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US1527299A true US1527299A (en) 1925-02-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418007A (en) * 1942-04-14 1947-03-25 Curtiss Wright Corp Method of reproducing templets or patterns
US3188951A (en) * 1961-08-29 1965-06-15 Magnachase Corp Magnetic chase with relative movement between magnets and plate supporting surface
US5307720A (en) * 1993-09-03 1994-05-03 Dayton Progress Corporation Punch retainer with punch release tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418007A (en) * 1942-04-14 1947-03-25 Curtiss Wright Corp Method of reproducing templets or patterns
US3188951A (en) * 1961-08-29 1965-06-15 Magnachase Corp Magnetic chase with relative movement between magnets and plate supporting surface
US5307720A (en) * 1993-09-03 1994-05-03 Dayton Progress Corporation Punch retainer with punch release tool

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