US606751A - Liard - Google Patents

Description

106. COMPOSITIONS,

g C COATING OR PLASTIC.

UNITED STATES EXAMINER PATENT ()FFICE' NAUM WEINTRAUB-SCHNORR, OF GENEVA, SWITZERLAND, ASSIGNOR TC LA SOCIETE CI-IIMIQUE DES USINES RIIONE, ANCIENNEMENT GIL- LIARD, P. MONNET ET CARTIER, OF LYONS, FRANCE.

COMPOUND FOR CLOSING PUNCTURES IN PNEUMATIC TIRES.

SPECIFICATION forming part of Letters PatentNo. 606,751, dated July 5, 1898.

Application filed July 1. 1897- BerialNO- 643,164. (No specimens.)

To all whom 'it may concern:

Be it known that I, NAUM WEINTRAUB- Scurvonn, of 4 Chemin de la Chevilliard, Geneva, Switzerland, have invented certain 5 new and useful Improvements in Pneumatic Tires and a Liquid for Closing Punctures Therein, of which the following is a specification.

The primary object of this invention is to provide an improved compound for the automatic and immediate closing of punctures produced in pneumatic tires or tubes by nails, broken glass, or the like, and thereby preventing escape of air.

I According to this invention the tire contains an improved liquid, which is introduced into the tire preferably before this is inflated, the liquid being of such a nature as to close any such puncture by penetrating into the puncture and hardening.

I am aware that there have been introduced into pneumatic tires for a similar purpose such liquids as oil or aqueous solution of gum or gelatin or hygroscopic liquid containing silicic or aluminium hydrate orother finely-divided substances in suspension. The oil or aqueous solutions of gum or gelatin do not, however, harden in the puncture, and, moreover,they have a more or less deleterious 3o influence on the rubber of .the tire. On the other hand, the hygroscopic liquids containing materials in suspension depend upon the blocking of the puncture with the solid particles held in suspension and cannot, like solutious, be introduced through the valveof the inner tube as convenience requires.

The liquidmade according to my invention is alkaline, whereas the liquids previously in use are acid'or neutral.

40 The basis of the liquid is a silicate soluble in water to which-is added-an agglu'tinant'or adfie'sive medium.

xamp e: may suitably employ an aqueons solution containing, in one hundred water-glass.

MY; B

parts, thirty parts water-"lass twenty parts sugar, and five par'tfiiextrme.

- y*wat-er-glass"l mean an silicate at discretion which is soluble in water. The sugar and dext-riue may lie substituted by other arboh 'drates and generally by any aggluihn-' i 1n water which is indifferent to The proportions may be varied within considerable limits.

If liquid or soluble albumen or other agglutinants containing nitrogen are employed, 5 5 it, will be necessary to add to the solution a small proportion of a suitable antiseptic soluble in water.

The bringing together of the ingredients mentioned in aqueous solution may be ef- 6o fected by simple admixture without necessity for a particular method of preparation. After proper admixture the liquid is ready for immediate use.

About one hundred grams are poured through the valve of the tire, which is then pumped up in the usual way, and the liquid is allowed to remain therein during use. In consequence of the great pressure existing in the tire and of the centrifugal force created by the rotation of the wheel the liquid penetrates into any puncture which may occur and'immediately closes the same in an absolutely air-tight manner.

What I claim, and desire to secu re by Letters Patent, is-- An alkaline liquid for closing punctures -in pneumatic tires, said liquid consisting of an aqueous solution of water-glass, sugar and dextrine in substantially the proportions 8o specified.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

NAUM WEINTRAI'Ii-SCHNORII.

\Vitnesses: FEED. ADOLF Pearson, Fnrrz ULLMANN.