US1454243A - Jdethod of making pattern-printing bolls - Google Patents

Description

May 8; 1923. I 1,454,243

r v J. w. M INDOE 5 METHOD OF MAKING PATTERN PRINTING ROLLS Filed April 18, 1921 Inveniozj I L 4 W 7%Z7/C&M

Patented May 8, 1923.

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JeMEsw. Marianas; or LOOKPORT, New YORK;

METHOD or MAKING PATTERN-PRINTING'RQLLS Application filed April 18, 1 921. Serial No; 462312;

State of New York, have invented new and useful Improvements in Methods of. Making Pattern-Printing Rolls, of which the following is a specification.

The object of my inventionis the provi sion of a simplepinexpensive and effective method for making a yieldable printing roll which exertsa relatively light pressure upon the paper web or other surface to be decorated and-which is therefore especlally sultable for printing a design or pattern in a plurality of quick-drying colors durlng a single run of the web through the printing press.

In the accompanying drawings: Flgure 1 is a side elevation of a molding apparatus which may be used for practicing my inven-' tion. Figure 2 is a vertical section thereof. Figure 3 is a top plan view of the upper spindle centering device. Figure 4 is a horizontal section on line 44, Fig. 1. Figure 5 is a fragmentary view of the pattern backing-sheet and the pattern secured thereto preparatory to being rolled into cylindrical form. Figure 6 is a perspective View of the 1 finished printing roll.

Similar characters of reference indicate corresponding parts throughout the several views. I

The apparatus employed for practicing my invention preferably comprises an upright mold composed of two half sections 10, 10, which are adapted to be securely joined at diametrically opposite sides b horizontally swinging pivot bolts 11. These sections may be supported in a vertical position on a suitable base 12.

The core or mandrel of the mold consists of an upright rod or spindle 13 having reduced ends 14, 15, forming oppositely facing shoulders 16 and 17, respectively. The lower end 14 of this spindle is seated in an opening 18 in the top of the base 12, its shoulder 16 resting on said top, while the upper end 15 of the spindle passes through an opening 19 formed in a centering wheel or spider 20 removably arranged in the ,upper end of the mold. This centering spider rests upon the upper shoulder 17 of said spindle. Surrounding the latter is a sleeve 21 and above the latter isan upwardly tapering sleeve 22 for assisting the flow of the 'molding materialuwhich forms the desired size.

molding composition into the lower portion of the mold. As. shown in Figs. 1-and'2, these sleeves are of less diameter than the interior diameter .cf the mold: sections, whereby an-. intervening spaceis left for the printing surfaceof the roll.

, 23 represents a backing or sheetto which a. pattern sheet 24 to'be reproduced on the roll is secured by glue or other appropriate adhesive rial: This pattern sheet pref-8v I erably consists of: an ornamental fabric 5 or material,-such as cloth, lace,"etc., although i any material having the desired pattern-in relief is suitable. These sheets may be prepared and united in the following manner? The pattern-sheet is properly squared up and stretched in a suitable frame to bring its threads and configurations in proper po sition or alinement. The back of said pattern-sheet is then covered with a suitable sizing, as shellac, to holdthe threads in position when dry, by means of a hot iron andsquared up to The backing sheet 23, which is of flexible material, such as'rubher-sheet packing, is, next given a uniform coating of adhesive material and the back side of the fabric pattern-sheet is given a thin coat of sizing, after which the two sheets are brought together andunited by the pressure of a suitable weight and left to' harden. When hard, the pressure is removed and a hot iron is passed over the surface, of the pattern, so as to cause all parts thereof to adhere to the backing, This pattern or pattern-form is then rolled 7 into a cylinder with the lace or fabricssheet forming the inner face thereof, as shown in Figs. 2 and 4:, the longitudinal edges of the pattern meeting in a butt joint 25. The

pattern is of the proper diameter to snugly fit within the mold, so as to practically form an ornamental lining therefor.

from top to bottom. The pattern isythus molded in intaglio in thesurface of the coma position, which upon hardening forms a yieldable printing surface. Any suitable composition may be used for this purpose,

the yieldin c.

after which it is smoothed It will thus be understood that a continuous pattern is perfectly at-its abutting edges.

adhering to it.

ing the spindle 13 and sleeves 21, 22 remain embedded in the roll, the ends 14: and 15 of the spindle forming trunnions for supporting the roll in a printing press.

- By this process, an inexpensive printing roll having a yieldable molded body with a pattern molded on its surface is produced which will print a continuous impression upon a web of paper or other suit-able ma terial,

Instead of utilizing ornamental fabric for the pattern sheet, an appropriate design may be cut or formed by suitable tools in a flexible plastic material applied to a backing sheet of rubber or other flexible material. In this case, after executing the pattern, it is allowed to dry and then rolled into cylindrical form, as in the previously described construction.

I claim as my invention:

The herein described method of making a printing roll having an inta-glio pattern in its surface, which consists in applying an ornamental pattern sheet, such as lace or the like, to a flexible backing, rolling said backing into cylindrical form and placing it in a mold with the pattern on the inner face of the backing and the rear side of the backing bearing against the inner side or" the mold, placing a spindle axially in the mold and pouring a molding composition into the space between said pattern sheet and said spindle, whereby the printing roll is molded upon the spindle and the pattern is reproduced upon. the surface of the printing roll.

JAMES W. M'QINDOE.

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