US617909A - Ertson - Google Patents

Description

No. 617,909. Patented Jan. l7, I899.

J. T. ROBERTSON & H. G. MMDEL.

ART OF PRINTING.

(Anolication filed Apr. 23, 1898.)

" A TTORNE).

A UNITED STATES PATENT OFFICE.

JUDAH TOURO ROBERTSON AND HENRY GEORGE MANDEL, OF NElV YORK,

N. Y., ASSIGNORS TO THE AMERICAN BANK NOTE COMPANY, OF SAME ART .oF PRINTING.

SPECIFICATION forming part of Letters Patent No. 617,909, dated January 17,1899.

I Application filed April 23, 1898. Serial No. 678,607. (No model.) I

To all whom it may concern:

I Be it known that we, JUDAH Touno ROB- nn'rsonand HENRY GEORGE MANDEL, citizens of the United States,residing in the borough 5 of Manhattan, in the city of New York, State of New York, have invented certain new and useful Improvements in the Art of Printing,

of which the following is a specification.

Our invention relates to the art of printing,

: and has for its objects certain improvements in the preparation by a mechanical transfer process of surfaces-for printing, either from relief or plate, whereby through certain novel steps in the process of preparing the same a I newand unique result in said printing-surface V will be accomplishe ,To enable those skilled in the art to under- .stand our invention, we will describe one of the methods by which it may be produced; fut we do not confine ourselves to the method described or to the particular character of apparatus hereinafter specified for accomplishing the desired result.

Our improved process consists in placing 35 upon 'a surface, hereinafter termed a bedpieee, a design, then forming from all or a selected portion thereof a second surface, which will produce the original design in reverse, and finally using this reverse design, in connection with a surface carrying the design in its original form, to form a printing-surface which shall carry the design in part reversed and in part direct or in its original form and which when printed from and'by'avhatevcr method printed will produce an ellect in part in inked lines with blank intersticesand in part in blank lines with inked interstices.

In the drawings accompanying this specification, Figure 1 represents a printing-form 40 having a design produced thereon in circular form and embodying our invention, and Fig.

2 a portion of a printing-form in which the different parts of the same design are pro duced alternately positive and reversed in a 5 series of parallel sections.

We Will now proceed to describe our in vention as used to produce a printing-surface from an original engraved or intaglio design, and by reference to rug. 1 of the accompanying drawings it will be seen that [he circle is each alternate segment A having the design impressed in intaglio, while theintermediate segments B have the intaglio and relief portions reversed, thus when printed from producing in white the portions that appear in color'in the segments A and in color the portions that appear in white in said segments A, the alternate sections of the printing-surface being formed by the process above described. A convenient means for earryin g out the steps. of this process is to cut away from the original"- bed-piece all. of the design but that portion to be used-in this instance the part shown-by one of the segments .A-though of course when a design is to be used in its entirety no cutting away is necessary, and to take a transfer therefrom bypassing a soft-steel roll, under pressure, over said bed-picce, the latter having been previously hardened or tem- 7( pered. \Ve will now have two surfaces with the same design thereon, except that the roll a when taken from an intaglio original will have said original intaglio portion reproduced thereon in relief, while the original bed-piece will remain unchanged. Now by hardening or tempering the roll and again transferring alternately from these surfaces onto a softsteel surface, care being taken to accurately register the lines, we produce thereon the design shown in Fig. 1, in which the sections A will be those transferred fromthe roll, while the sections ll will be thosetransferred from the original bed-piece. .Said surface upon being properly hardened or tempered is ready to be printed from. W'hile' we have shown and deseribed'these intaglio and relief sections arranged alternately in said figure, it will be understood that the arrangement may be varied as desired'as, for instance, by. arranging every third or fourth section in intaglio and the rest in relief, or vice Verna-the particular arrangement forming no part of the invention.

' In the plate shownin Fig. 2 the same process is followed, except that in this instance the original design is subdivided into a series of parallel sections, the sections 0 appearing as they would if the original bedpiece were used to print from, while the sec- I00 tion 1) appears with its portion of the same design reversed, thns bringing white lines to correspond with the color lines of sections C, and vice versa.

It has been found best in practice in forming the printing-s11rtaee shown in'Fig. 1 to take up two' separate but similar segments onto two different rolls, nsin one of ti .se to transfer the originaldesign to the printingtorm in iniaglio and the other one to transfer to athird roll in intaglio, from .vhioh the seetions it are transferred, reversed, to the printing-form, as deserihed, and said printing" form may therefore he made in either'mannor, as may he desired. This latter praetiee ,possesses the double advantage of saving unnecessary wear and tear the original bed-plate and of the necessity for euttine away portions oian original design not intended to he used to obtain a partienlar resnlt, as the neeessary cutting away can he done i'rom ,the rolls after the transfer thereto and before tempering.

As nel'ore stated, we desire it to he distinetl t understood that we do not limit our selves to the ahovealesrrihed proeessol' transi'errine, from engraved or intaglio plates, as the same may he as advantaeeously used with any kind of meehanieal prinling as, for instance, with reliet-plates-mnd the resultant design on the printinglnrin printed typoe'raphieall v. So, also, pantograph work ma v lie employed in forming the original and printed either in, plateprinting; or typefli'itDliltfitlhY. .Nor do we ('oniine ourselves to the above-lleserihed prowess of transferring to prodnee these results. For the e reasons the use of the terms inta rlio and relief are to he understood in their lH'tHltlUSisense and are not to heeonstrned as resirirtingthe invention to the transl'er ot engraved designs. \Ye do not, howm'er, broadly claim a. printingi-snrl'aee carrying a design thereon in part in intae'lio or reliei' and in part reversed, but desire to limit. our invention in this respect to a printinedorin embodying on the design on these characteristics, but prmlueed by iUlpressing the design therein by a meehanieal transfer process in eontradistinetion to eatt-ing or otherwise producing said design.

Having thus 'leserihed our invention, what we claim as new, and desire to seeureby Letters Patent, 'isi l. A printing-form, having its printingsnrfaee divided into sections, and having in one or more sections all or a portion of asingle design impressed therein by a mechanical transfer process either in intaglio or re- Gt "Hid in each remaining section all or a portion of the same design impressed therein reversed, the printin portions of theone registering with the tmprintine portions of the others, thereby eonstitnl ing a single continuous design, substantially as set forth.

:3. .As an improvenn-nt in the printing art, the process whieh eonsists in t' iriuin l'roma desigirsurlaee, a surtate carrying," the design in reverse, and forming, trom said reversed design-surifaee and a surfaee earr ving the dirert design, a printing-surfaee which eontaius the design in part direet: and in part reversed, substantially as set forth.

Ii. As an llilIlI'UVtHlltllilin the printing art, the proeess \\'lli('il consists in tormingfrom a bed-piece carrying a design, a surl'atai, then forming from said surface a seeond surface, and tinally forming t'rom said snrtaees a printing-s11rfaee carrying all r portions of the said design in part direet and in part reversed, the printing portions ol' the one registering with the imprinting portions of the other to form a single design, suhstantially as set forth.

In testimony whereot we have hereuntp set our hands in the present-e of two snhserihing witnesses.

.IUDAll 'J l ltt) ROHER'ISUX. Ilt lNltY HEORUE MANUEL.

\\'itnesses'.

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