US1028821A - Base for printing-plates. - Google Patents

Description

' M HoeB & P. 0. RIEBE.

'BASB FOR PRINTING PLATES.

APPLICATION FILED MAY 10, 1909.

1 02 21 v Patented June 4, 1912.

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MAX HOGE AND PAUL o. RIEBE, or CHICAGO,

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ILLINOIS, ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, TO UPRIGI-IT GRAIN PRINTING BASE COMPANY, OF CHICAGO,

ILLINOIS, A CORPORATION OF ILLINOIS.

BASE FOR fRINTING-ILATES.

Specification of Letters Patent.

I Patented June at, 1912. Divided and this application filed May 10,-

1909. Seria1 No.495,166.

To all whom it may concern:

Be it known that we,

PAUL O. RIEBE, citizens of the United States, residing at Chicago, in the countyof Cook and State of Illinois, have invented new and useful Improvements in Bases for Print-ing- Plates, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

This application is a division of our application Serial No. 476,841, filed February 8, 1909, the generic invention presented in that application consisting in the employment, for a printing base, of wood blocks with the grain vertical, so that the printing plate is mounted on the end of the grain. The specific embodiment of that invention which is the subject matter of this divisional application consists in such wood blocks with the grain vertical, assembled and united by intersecting septa of longitudinally tenacious material, and otherwise characterized as particularly set out in the claims.

In the drawings :-Figure 1 is a plan view of a base block for a printing plate embodying this invention. Fig. 2 is a section at the line 2-2 on Fig. 1. Fig. 3 is a plan view of a slightly modified form of the same specific invention. Fig. 4 is a plan view of a modified form of the invention, showing wood septa inserted in a diagonal arrangement of the blocks.

In the drawings the unitary base shown in Figs. 1 and 3 comprises a multiplicity of relatively small wood blocks, A, with the grain vertical, so that the base at the surface for mounting the printing plate presents the end of the grain of the wood. These blocks are preferably rectangular and also'preferably square, excepting those around the mar gin of the form shown in Fig. 3, which are triangular. The blocks are-assembled sidewise,that is tosay, so that the proximate surfaces of adjacent blocks. present the side of the grain to each other, and are glued together. Preferably, in addition to the in tersecting glue septa which result from thus assembling and gluing, and which have the desired longitudinal tenacity, there are interposed between the blocks thin strips of wood, B, to constitute the intersecting septa, or, in lieu of wood, other fibrous ma- MAX Home and I a manner which requires inclosed in a binding or frame,

cl, in the customary thussecured by tacks penetrating the end 95 terial'of suitable tenacity, such septa being united by the glue to the blocks and being other at their intersections in no explanation. In the form shown in Figs. 1 and 2 the blocksl A, are assembled in rows parallel to let into each the sides of the entire base, and when properly made and well glued with the intersecting septa of wood or other longitudinally fibrous material, no encompassing band or frame is necessary, though it may be employed as represented in Fig. 3.

In Figs. 3 and {L the blocks, A, are represented as assembled in rows oblique to the sides of the entire base, thus requiring triangular half-square blocks, B and quartersquare blocks, In Fig. 3 the blocks are represented as united only by the glue septa indicated by the heavy lines, I), intersecting and forming asubstantially unitary skeleton of cells, each of which is occupied by a block. this figure the entire base is represented as C, which is of wood or other suitably tenapreferably f the cious material united to the margin 0 assembled blocks by glue in the same manner as the blocks are united to each other.

It will be understood that the septa of wood or other fibrous material, B, or the septa of glue only, I), may be employed in either arrangement of the blocks,-that is,

either that shown in Fig. 1, or that shown in Fig. 3, and Fig. t illustrates such combination of the wood septa with the diagonal arrangement of the blocks.

The advantage of the oblique arrangement of the blocksis illustrated in Fig. 3, consisting in that a printing plate, I), mounted upon the base and secured by tacks, manner can always be of the grain of the blocks and without liability to strike the septa-, which if of glue would be more difiicult'to penetrate, and if of wooden strips would be liable to be split by the with the end of thefgrain, as fully pointed out in our. said application Serial :No. 476,841.

'We claim 1. A base block for of a plurality of elements of wood with the B to complete the outline. 70

penetration, which is not the case printing plates made 2. A base block for printing plates comprising, in combination With a rectangular peripheral band or frame, a multiplicity of rectangular elementsof Wood with the grain vertical assembled in intersecting rows oblique .to the sides of the frame; triangular elements occupying the marginal triangular spaces remaining between the oblique blocks and the encompassing frame, and intersecting septa of longitudinally tenacious material uniting and united to the blocks.

In testimony whereof, We have hereunto 15 set ourhands, in the presence of tWo Witnesses, at Chicago, Illinois, this 8th day of May, A. D. 1909.

MAX HOGE. PAUL O. RIEBE.

In the presence of M. GERTRUDE ADY, J ULIA S. ABBOTT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

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