US935073A - Printing-plate foundation. - Google Patents

Description

W. S. WARNOGK, PRINTING PLATE FOUNDATION.

APPLICATION FILED SEPT. 3, 1907.

Patented Sept. 28, 190 9.

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WALLAGE S. WARND'CK, OF CHICAGO, ILLINQIS.

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Specification of Letters Patent. Patented Sept. 28, 1909. Application fi led September a, 1907. Serial No. 391,135.

To all whom it may concern: 4

Be it known that I, VVALLACE S. WAR- NOCK, citizen of the United States, residing at Chicago, in the county of Cook and State .of Illinois, have invented a certain new and showing the preferred embodiment thereof,

in which Figure 1 is a view of so much of a printing plate foundation constructed in accordance with my invention as is necessary to render an understanding of the invention,

clear. Fig. 2 shows adjacent portions of two contiguous blocks in separated relation. Fig. 3 is a view similar to Fig. 2 showing the blocks in locking relation.

Like parts are indicated by similar characters of reference throughout the different figures. j

The plate foundation'is formed of a number of separately constructed relatively and bodily movable blocks 1, which may be grooved in any preferred manner, these blocks being illustrated with diagonal grooves 2, to which direction of grooving,

however, I do not wish to be limited. There is provided at two diagonally opposite corners of each block, a pair of locking devices 8 in the form of dowels,'these dowels projecting from vertical sides of the blocks. There are distributed alon the sides of the 1' blocks, a number of dowe receiving apertures 4;, 90 located that when any aperture is in recelpt of a dowel, the grooves 2 in one of the blocks are in perfect alinement with the adjacent grooves 20f the other block. In order that the blocks may be snugly enshouldered and engages a'thrusting spring 5 adapted, when unopposed, to thrust the dowel outwardly, flush with the external surface of the block 1, being inserted in a recess, the cup constituting a barrel for said, spring 5. Notonly may printers furniture be permitted snugly to engage the blocks by reason of the disappearing dowels, but said blocks may be moved readily past each'ot'her until they are position, whereupon the spring 5 will thrust the dowel 3 into a dowel receiving aperture 4. It will be observed that when the recesses 4 are in receipt of dowels 3, not only will the grooves in the associate blocks be maintained in alinement, but that one block will be prevented from rising with reference to another.

It will be seen that I have. provided a. printing plate foundation formed of a num.- ber of blocks grooved to receive plate-clamping devices, each block having all of its vertical sides provided with dowels and dowelreceiving recesses for maintaining grooves in one block in alinement with grooves an adjacent block, each dowel being surrounded by a cup or barrel received intotheassociate block, ,each cup or barrel permitting the dowel to recede therein and containing a spring for pressing the dowel outwardly.

I have not deemed it necessary to describe any of the clamping devices and facilities as; these are nowwell known in the art.

I have shown herein the style of plateclamping mechanism and foundation block disclosed in my application Serial No. 308,121, filed March 26, 1906, in which cobrought into proper pending application I have made claims upon such plate clamping mechanism and foundation block. I have also shown herein certain structural characteristics that are disclosed and claimed in my copending application Serial No. 231,362, filed November 4, 1904:.

The claims in the present case' 'are based upon 'the dowel pin and block construction.

I use the term spring pressed dowels in the sense of dowels that are adapted "to be thrust outwardly by spring mechanism when the outer movement of said dowels is not resisted, but which dowels may readily be depressed. I do not wish to be understood as limiting myself to the precise location of the spring mechanism, as any-spring mechanism whichwill normally thrust the dowels outwardly but permit the dowels a cup 6 with its bottom to be thrust inwardly, I consider to come within-the scope of my invention and within the scope of the said term.

\Vhile I have herein shown and particularly described the preferred embodiment of my invention, I do not wish to be limited to the precise construction shown, but,

Having thus described my invention, I claim as new and desire to secure by Letters- Patent the following 1. A printing plate foundation formed of a number of blocks grooved to receive plateclamping devices, each block having all of its vertical sides provided with dowels and dowel-receiving recesses for maintaining grooves in one block in alinement with grooves in anadjacent block, each dowel being surrounded by a cup or barrel received into the associate block, each cup or barrel permitting the dowel to recede therein and containing a spring for pressing the dowel outwardly. 2. A printin of a number 0 blocks, each block having all of its vertical sides provided with dowels and dowel-receiving recesses, each dowel beplate foundation formeding surrounded by a cup or barrel received int-(i the associate block, each cup or'barrel permitting the dowel t0 recede therein and containing a spring for pressing the dowel outwardly.

In witness whereof, I hereunto subscribe my name this 31st day of August A. D., 1907.

\VALLACE S. VVARNOCK.

Witnesses:

L. G. STRoH, G. L. CBAGG.

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