US350653A - Making gelatine printing-rolls - Google Patents

Description

(No Model.)

E. P. BENJAMIN.

MAKING GELATINE PRINTING ROLLS.

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WITNESSES:

UNITED STATES PATENT OFFICE.

, EDVIN I. BI'IJAHIN, OF MINETTO, ASSIGNOR OF ONEIIALF TO THE )HNETTO SHADE CLOTH COMPANY, OF OSVEGO, NFV YORK.

ittlltKlNG-A GELATINE PRINTING-ROLLS.

SPIECFCATICN forming part of Letters Patent No. 350,653, dated October l2, 1886. Application filed November 10, 1385i. Serial No. 183,427. (No model.)

To LZZ whom, it ntttg/ concern.-

Bc it known that l, Eowm P. .BnNJAMr-N,of

Minetto, in the. county ot' Oswego and State of New York, have invented anew and useful Improvement in Making Gelatine Printing-Roll` ers, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part of this specitication, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a plan view, partly in section,of one of my improved gelatine rollers. Fig. 2 is a sectional end elevation of the same, taken through the line .r rv, Fig. 1. Fig. 3 is an end elevation of the same. Fig. 4 is a plan view ofa part of the gelatine plate and canvas sheet before being applied to the tubular shell. Fig. 5 .is a sectional end elevation of the same,taken through the line y y, Fig. 4.

The object ot' this invention is to provide gelatine printingrollers made in such a manner that they can be used for printing continuous patterns upon cloth, paper, or othersubstance of any desired length.

Theinvention consists in the method ofmaking gelatine printing-rollers, hereinafter fully described, and alsoin the construction andarrangement of parts hereinafter Vt'ull y described and claimed.

A represents the roller-shaft, around. which is placed atubularshell, B. The shell B is slot-- ted at one side for its entire length, and into its.

ends are fitted two crossbars, C, whichl have lugs D at one end to enter the slot ofthe shell` B and hold the said shell from turning upon the said cross bars C. In the centers of the cross-bars C are formed square perforations to tit upon the squared inner parts of the journals of the shaft A, so that the said cross-bars cannot turn upon the said shaft.

To the cross-bars C, upon the opposite sides of the radial line passing through the lugs D and the slot of the shell B, are journaled two tubes, E, which are slotted longitudinally,and are provided with ratchet-wheels F, with the teeth of which engage pawls G, pivoted to the cross-bar C and held against the said'ratchctwheels by springs tlf, also attached to thesaid crossbar, as illustrated in Fig. 3. The ends of the slotted tubes E are squared to receive a wrench for turning the said tubes.

I is a gelatine plate upon which the pattern is formcthand which is molded upon a sheet of canvas, J. The side edges of the canvas J eX- tend a little beyond the side edges of the gelatine plate I, and have hems formed upon them, as shown in Figs. 4 and 5.

To the side edges of the gelatine plate I are molded strips K, of telt, in such positions as to be pressed firmly against each other when the canvas J and gelatine plate I are drawn firmly around the shell B.

ln forming the roller the canvas J` and gelatine plate I are placed around the shell B with the hemmed edges of the canvas J passed through the slot in the "shell B and into the slots in the tubes E, where they are secu red in place by rods L,passed through the said hclns within the said tubes. The tubes E are then turned to wind the edges of the canvas J around the said tubes and draw the said canvas and the gelatine plate I snugly around the shell B, bringing the felt strips K into close contact with each other. A heated knife is then drawn between. the felt strips K, which warms the adjacent edges of the gelatine plate I and firmly cements the said strips to each other. By this construction a practically solid gelatine roller will be formed, so that it will `print a continuonspattern upon cloth, paper,

or other material of any desired length..

It desired, the felt strips K can be omitted and the edges ofthe gelatine plate I cemented to each other by drawing aheated knife be tween them, in the manner hereinbefore described with reference to the felt strips. It will of course be understood that any suitable composition may be used instead of gelatine.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patentl. The method of forming printingrolls, consisting in molding gelatine bn a flexible sheet to form a plate thereon, then drawing the sheet tightly around a tubular shell or core until the side edges of the plate are brought together,and finally cementing said edges,snbstantiall y as set forth.

2. A core for printing-rolls, consisting of a IDI) on the end plate engaging the ratchets, snbstantially as set forth.

4. The covering in prnt-ingrolls herein shown and described, the same consisting in a sheet of ieXible material having a gelatine plate thereon between its side edges,l the said edges having hems thereon, substantially as set forth.

5. The covering for printingrolls herein shown and described, the same consisting in a sheet of ilexible material having hems on its side edges,a gelatine plate on the 'sheet interplnedate of its hennned edges,and felt strips on.

the edges of the gelatine plate parallel with said hemmed edges, substantially as setforth.

6. The combination, with the tubular longitudinally-slotted shell having end plates or cross-bars, and rotary shafts journaled in the end plates or cross-bars, of a flexible sheet having a gelatine plate thereon between its side edges, the projecting ends of the sheet eX- tending through the slot of the shell into engagement with the rotary shafts, whereby, whenthe said shafts are rotated, the edges of the gela-tine platemay be brought together, substantially as set forth.

7. The co1nbination,with the longitudinally slotted shell B, having. cross-pieces or end plates,C, the central shaft, A, the tubular slotl ted shafts E E, journaled in the crosspieces C, and means for locking the said shafts from rotation in one direction, of the eXible sheet J, 4having hems on its side edges and a gela- 45 -tine plate, l, the hennned ends ofthe sheet eX- tending through the slot inishell B into the tubular shafts, and the rods L iin the hems within `the tubular shafts, substantially as set forth.

EDVIN P. BENJAMIN. Vitn esses:

J AMEs T. GRAHAM, C. SEDGwIcK.

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