The Boot and Shoe Manufacturers' Assistant and Guide.: Containing a Brief History of the Trade. History of India-rubber and Gutta-percha, and Their Application to the Manufacture of Boots and Shoes. Full Instructions in the Art, With Diagrams and Scales, Etc., Etc. Vulcanization and Sulphurization, English and American Patents. With an Elaborate Treatise on Tanning.
History
The Boot and Shoe Manufacturers' Assistant and Guide.: Containing a Brief History of the Trade. History of India-rubber and Gutta-percha, and Their Application to the Manufacture of Boots and Shoes. Full Instructions in the Art, With Diagrams and Scales, Etc., Etc. Vulcanization and Sulphurization, English and American Patents. With an Elaborate Treatise on Tanning.
Footwear industry; Gutta-percha; Rubber; Tanning
_First._ I claim the mode of making shoes and galoshoes of gutta-percha,
combined with other materials first before described, in so far as
regards the combination of elastic or flexible foundations with
gutta-percha soles and uppers.
_Second._ I claim the employment of glass moulds to give a polish to the
exterior or parts of the exterior of shoes and galoshoes made in whole
or in part of gutta-percha, as before described.
_Third._ I claim the making of backs and stocks for brushes in whole or
in part of gutta-percha, in order to give springiness to the same.
_Fourth._ I claim the making of backs and stocks for brushes in whole or
in part of gutta-percha, as before described and exemplified.
_Fifth._ I claim the employment for painting, printing, or otherwise
applying colors to articles and fabrics made in whole or in part of
gutta-percha, and also to other articles and fabrics of the particular
compound or vehicle hereinbefore specified, but without limiting myself
to the exact proportions in which each of the materials has been
directed to be used in such compound or vehicle, inasmuch as the said
proportions may be varied without affecting the general result.
_Sixth._ I claim the employment, for all manufacturing purposes to which
the same are applicable, of the several other improved preparations and
compounds of gutta-percha specified under the fourth head of this
specification, each in the peculiar combination of materials of which
the same consists, and the peculiar process or processes by which it is
prepared.
JAMES CARTLEY, of Harpenden, Hertford, manufacturing chemist, _for
improvement in the manufacture of varnishes from resinous substances_.
Patent dated January 11, 1849.
This invention consists,
_First._ In manufacturing in manner following, from resin spirit, and
the gum resin called gutta-percha or gutta taban, a new compound or
varnish which possesses the properties of being strongly adhesive and
perfectly _water repellent_. The patentee puts into a pot three parts,
by weight, of the gutta-percha or gutta taban, as imported or as it may
be bought in the home market, and adds nine parts of crude resin spirit,
(obtained by the destructive distillation of common resin) and subject
them to a heat of from 120° to 140° Fah., stirring the mixture
occasionally. The resulting solution forms a varnish which answers well
for the coating of all coarse fabrics, such as tarpaulings, rick cloth,
&c. But to obtain a varnish of a purer and better quality, suitable for
fine articles, he rectified resin spirit, which he obtains by passing a
current of steam through the crude resin spirit until the condensed
product which comes over exhibits a specific gravity of about 0.870, at
which point the process of distillation must be stopped, all products of
a higher specific gravity being injurious to the quality of the spirit.
Public-domain text, read in full here on John Shaqi.
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