US108072A - Improvement in rendering leather impervious to hydrocarbon liquids - Google Patents

Description

waited ates gm 1h al LigIw-m it may concern i Be; it known that I, ALBIN WARTH, of Stapleton, in the county of Richmond, and State of New York, have invented a new and improved Process for Renderlng Leather Impervious to Hydrocarbon Liquids; and I do hereby declare the following to be a full,

.those skilled in theart to make and use the same.

This inventionconsists in immersing leather in melted beeswax, at atemperature of from 200 to 250, for'a suflicientlylongtime to allow the wax to same is rendered impervious to petroleum, or other hydrocarbon l qiuds,:wliile it remains perfectly pliable, and not liable to become rancid or rotten, as it does whenfsatnrated with fat.

dncarrying out inyinveutiou, I take a quantity of beeswax, and melt it'in a kettle, of convenient size,

hen the mass has'becomc thoroughly fluid, and

its temperature hasbeen raisedto from 200 to 250 l ahren-heihl introduce therein the leather, which is lowing the same to remain in the melted mm for such a period that its entire body becomes thoroughly and uniformly saturated with the was. I

After removing the leather from the wax, I expose Illto pressure by passing it through between rollers,

then it is ready for use, or it may be used without bcmg pressed. y I l lily principal object in treating leather in the manner above describedis to obtain a suitable packing for valvesof petroleum-cans. Ordinary leather is useless for this. purpose, since the petroleum penetrates through the sameaud the valvecannot be made to clear, and exactdescription thereof, which will enable penetrate the entire body of the-leather, whereby the 1 10 be rendered impervious tohydrocarbonliquids,.a

orotherwise, so as to remove all surplus wax, and

ALB IN WARTH, or STAPLETON, NEW YORK.

Letters Patent No. 108,072, dated October 4, 1870.

IMPROVEMENT 1N JRENDERING LEATH'IERIIMPERVIOUS TO HYDROCARBON LIQUIDS. Q I I I The Schedule referred to in theseLtters Patent and making part of the same close tight. India rubber cannot be used, because it is destroyed by the petroleum. But by saturating the leather with beeswaxa packing is obtained which is impervious to petrol'nm, or'otlier hydrocarbon liqnids, and I am enabled to produce a cheap and tightvalre. it

Leather prepared according to my invention can, however, be also used with advantage formanufacturing shoes, particularly for persons working in the oil regions, where shoes made of common leather soon become saturated with the oil, and can hardly be considered a protection for the feet.

By the action of the wax the durability of the leather is materially increased, and leather prepared according to my process can he used for belting for hosc,'1and, in

advantage where it is desirable that leather should resist the actiouof' petroleum.

I do not/claim broadly as my invention the applica tion of beeswax in a melted stateto leather; but

What I claim is-- The within-described process for rendering leather impervious .to hydrocarbon liquids, by boiling the same in melted beeswax until its entire bodyis permeated by the wax,'as herein set forth.

ALBIN WARTH.

Witnesses:

W. HAUFF, (J. WA LEns.