US38353A - Improved composition for preserving and waterproofing leather - Google Patents

Description

UNITED STATES PATENT OFFICE.

ROBERT K. WRIGHT, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVED COMPOSITION FOR PRESERVING AND WATERPROOFING LEATHER.

Specification forming part of Letters Patent No. 38,353, dated April 28, 1863.

To all whom it may concern:

Be it known that I, ROBERT K. WRIGHT, of the city and county of Philadelphia, and State of Pennsylvania, have invented a new and useful Composition for Preserving Leather; and I do hereby declare that the ingredients used in making said composition and the process of mixing or compounding them to make it is described in the following specification, with directions for applying the composition to the leather to be preserved by it.

The nature of my invention consists in makin g a composition of certain proportions of boiled linseed-oil, gum-copal, oil of turpentine, and caoutchouc, mixed or compounded and applied to theleather substantially as described in the following specification.

To enable others skilled in the art to make and use my new composition for preserving leather, I will proceed to describe the best mode known to me for making and using it.

First. I put three pounds of gum-copal (crushed or broken) and half a gallon of boiled linseed-oil into an open copper vessel and boil them together until the gum is dissolved. When cold, I add one gallon of oil of turpentine, and mix the whole together thoroughly by stirring, and then put it in a bottle or jug and stop it tight.

Second. I take half apound eaoutchouc, cut it into shreds, and put it in a bottle and add one gallon of oil of turpentine, stop it tight, and shake it occasionally until the caontchouc is dissolved. I then mix four measures of the first-mentioned compound with one measure of the second and apply the composition thus formed to the leather with a soft brush. Atter the first coat is absorbed by the leather I apply a second, and continue to repeat the application until from six to ten coats have been applied, according to the thickness and absorbent powers of the leather.

If the composition should become thick from exposure, add oil of turpentine until it is thin enough to flow as freely as before. The composition should be keptin bottles closely corked or stopped.

This composition renders the leather impervious to water and increases its durability. Itis particularly desirable for the soles of shoes, as it makes them wear far longer than they otherwise would.

I believe I have described the best mode known by me of making and using my new composition for preserving leather, so as to enable any person skilled in the art to make and useit without furtherinvention or experiment. I will now state what I desire to patout.

What I claim as my invention is The above-described composition for preserving leather, made of the ingredients enumerated, mixed or compounded in about the proportions specified.

ROBERT K. WRIGHT.

Witnesses:

ARTHUR MALOOM, CHARLES 0. Months.