IMPROVEMENTS IN THE MANUFACTURE OF USEFUL PRODUCTS AND MATERIALS FROM SCRAP AND WASTE LEATHER, OLD OR WORN OUT LEATHER GOODS, AND OTHER MATERIALS
Year: 1876

page_text: PROVISIONAL SPECIFICATION left by Joseph Lambert de Montoison at the
Office of the Commissioners of Patents on the 21st November 1876.
JOSEPH LAMBERT DE MONTOISON, of Manchester, in the County of Lancaster,
Chemist. " IMPROVEMENTS IN THE MANUFACTURE OF USEFUL PRODUCTS AND
MATERIALS FROM SCRAP AND WASTE LEATHER, OLD OR WORN OUT LEATHER GOODS,
AND OTHER MATERIALS."
My Invention relates in the first place to the treatment of all kinds of leather
waste cuttings and scraps, and of old or worn out boots, harness, straps, or other
leather goods, in order to obtain an useful produce therefrom. To this end I place
the leather matters cut into small pieces ground or disintegrated in a vessel which
can be maintained at a moderate and nearly constant temperature, as for example,
in a vessel heated to about one hundred and eighty degrees by means of a water
bath, and I add thereto water and acid, as for example, tartaric acid, cream of tarter,
or acetic acid, and I maintain the indicated temperature or thereabouts for several
hours until the dissolution of the leather is effected. I wash the resultant mass
with water. The product so obtained may be formed or moulded into useful
articles or materials, or be employed in the manufacture of articles or materials, or
be employed as a basis in the manufacture of fabrics and materials.
According to the second part of my Invention now to be described. I mix
the aforesaid product with dissolved caoutchouc, shell-lac, or gum-lac, or other
clastic or semi-elastic gums, and with coarse or waste wool, hair, or other fibrous
materials, and if desired with colouring matter or matters. The mixture so
formed may be formed by means of heated roliers or cylinders into sheets which
may be used in the covering of floors or for other purposes, or by varying the
descriptions, conditions, and proportions of the matters added to the said product.
I obtain fabrics or materials suitable to be employed in lieu of leather in the
manufacture of leggings, in the soleing of boots, and for other purposes.
Fabrics so
produced may be rolled, grained, or japanned to imitate leather in appearance.
By adding a proportion of coal tar, bitumen, pitch, or other similar matters to tho
said mixture a fabric suitable for covering roofs and for other purposes may be
obtained. I also manufacture fabrics by treating sheets of felted or cohering
animal hair, wool, or fibrous material with the said product, or with a composition

page_text: obtained by mixing the product with dissolved caoutchouc and gum or shel-lac, and
if required with colouring matter or matters.
Fabrics produced by the methods indicated may receive a surface colour or finish
and be printed as in the case of other floor coverings, and may receive a backing or
facing of woven fabric, paper, leather, or other material.
I may also find it to be desirable to add other matters to the said product than
those herein indicated, or I form fabrics or materials by cementing together layers
of leather, canvas, woven or felted fabric, paper, or other similar materials, by
means of the said product or mixture of the product with caoutchouc and other
matters.