US35149A - Improved composition for making printers inking-rollers - Google Patents

Description

than three months; in use in the manufacture of printers rollers being merely glue and molasses, the rollers UNITED STATES PATENT OFFICE.

LEWIS FRANCIS AND F. W. LETMATE, OF NEW YORK, N. Y.

IMPROVED COMPOSITION FOR MAKING PRINTERS lNKlNG-ROLLERS.

Specification forming part of Letters Patent No. 35,149, dated Mayo, 1862.

To all whom it may concern:

Be it known that we, LEWIS FRANCIS and FREDERICK W. LE'IMA TE, of the city, county, and State of New York, haveinvented,made, and applied to use a new and useful Composition for the Manufacture of Printers inking- Rollers and we do hereby declare the following to he a full, clear, and correct description of our said invention.

The nature of our invention consists in the use or employment of glue properly combined with glycerine and caster-oil or any ofthe fixed. oils to form a composition-from which printers inking-rollers of a superior character may he made.

it is well known to every printer how dithcult a, matter it is to keep inking-rollers in at proper condition for use for a l'ongerperi'oil iliecomposition atpresent soon dry up, shrink, and become hard, thereby losing their SllCil0il, iVhlill renders them unlit for use.

To produce a composition from which a. printers roller can he made, which roller will not be affected by the changes in the atmosphere or by long use, and. he at all times in at proper condition for use, is the invention.

In making our improved composition we combine the glue, glyeeriue, and caster-oil or any of the finecl oils employed in about the following proportions, namely: glue, two (2) pounds; giycerine, four (4) pounds; easterhject of our 'oil or any of the tired oils used, one (1) pound.

stirred until all the glue has'been added and thoroughly incorporated with the glycerine. The caster-oil oreny of the fixed oils em ployed is now added, and when ithas been well mixed with the glue and glycerine the composition may be cast into thin sheets or of the fixed oils, when thus combined, form a composition which will not shrink and which possesses a very great degree of suction-that is, capacity to receive and hold printing-ink,

aurlstill import it readily to the types orform from which an impression is to .be taken.

The peculiar advantages we would claim for ourcomposition may he thus enumerated, nomely: first, thatrollers made from itneverlosetheir suction or become hard or dry, second, that rollers made from it will not shrinlrythird, thnt rollers made from it lastvery much longer than the common glue and molasses roller,

and when desired can he remelt'ed and recast,

thus enabling the printer to use our composition over and over agaiuin-the making of roll 'ers, which is not the case with the summer I tion at present made, which latter is of no use whatever after the roller mode fromit has become defective. i

We do not wish to he understood as intending to confine ourselves to the use of the in gredients employed in the proportions herein set forth, us we are aware that in some cases it may be necessary to vary these proportions.

What we claim as our own invention, and desire to secure by Letters Patent, is-

The use or employment of glue, properly combined-with glycerine and caster-oil or any of the fixed oils, to form a composition for the manufacture of printers inking-rollers.

LEWLS FRANCIS. FREDK. W. LETMATE.

In presence of- A. TURNER, -A. SIDNEY Donne.