Opening the text

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

The rule which the patentees, however, state that they have found to be
the best, under ordinary circumstances, it is to just cover the material
when prepared and placed in the vessel with the solvent, and then to add
about one-third more, and maintain the mixture at the boiling point of
oil of turpentine, for about from 15 to 30 minutes. The consistency of
the mixture may subsequently be increased or diminished by evaporating,
or by the addition of oil of turpentine, coal, naptha, or other solvent.
When the material has been rendered hard or horny by vulcanization or
conversion, the time necessary to dissolve it or reduce it to a soft
pulpy state would be so long, as to render the preceding process
worthless.

The mode of operating under the second head consists in mixing from
eight to twelve parts of sulphur, with every one hundred parts of the
solid material in solution, and then subjecting the mixture to the
necessary degree of heat to produce the vulcanized or converted state.

The patentee mentions numerous applications of these solutions, among
which may be cited water-proofing, and the employment of them as a
medium for colors in painting, and in printing calico, &c.

The improvements in moulds consists in making them of a material easily
soluble at low temperatures, such as D’Arcet’s metal, &c., so that they
may be broken up, and easily removed from the moulded article without
injury to them.


To ANTHONY LORIMIER, London, England. For improvements in combining
gutta-percha and caoutchouc with other materials. (Sealed 10th of July,
1848.)

The first part of this invention consists in cutting gutta-percha into
very thin shavings, (which the patentee prefers to effect by the use of
certain described machinery, or any other suitable means may be
employed); then drying the same by spreading them over any suitable
surface, and afterwards subjecting the shavings of gutta-percha to the
action of other machinery, by which they are bent in various directions
and reduced or divided into smaller pieces; by this means the impurities
will be separated without the use of heat or water, and the gutta-percha
rendered suitable for use at a very small cost.

                  *       *       *       *       *

Public-domain text, read in full here on John Shaqi.

Opening the text

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

The rule which the patentees, however, state that they have found to be
the best, under ordinary circumstances, it is to just cover the material
when prepared and placed in the vessel with the solvent, and then to add
about one-third more, and maintain the mixture at the boiling point of
oil of turpentine, for about from 15 to 30 minutes. The consistency of
the mixture may subsequently be increased or diminished by evaporating,
or by the addition of oil of turpentine, coal, naptha, or other solvent.
When the material has been rendered hard or horny by vulcanization or
conversion, the time necessary to dissolve it or reduce it to a soft
pulpy state would be so long, as to render the preceding process
worthless.

The mode of operating under the second head consists in mixing from
eight to twelve parts of sulphur, with every one hundred parts of the
solid material in solution, and then subjecting the mixture to the
necessary degree of heat to produce the vulcanized or converted state.

The patentee mentions numerous applications of these solutions, among
which may be cited water-proofing, and the employment of them as a
medium for colors in painting, and in printing calico, &c.

The improvements in moulds consists in making them of a material easily
soluble at low temperatures, such as D’Arcet’s metal, &c., so that they
may be broken up, and easily removed from the moulded article without
injury to them.


To ANTHONY LORIMIER, London, England. For improvements in combining
gutta-percha and caoutchouc with other materials. (Sealed 10th of July,
1848.)

The first part of this invention consists in cutting gutta-percha into
very thin shavings, (which the patentee prefers to effect by the use of
certain described machinery, or any other suitable means may be
employed); then drying the same by spreading them over any suitable
surface, and afterwards subjecting the shavings of gutta-percha to the
action of other machinery, by which they are bent in various directions
and reduced or divided into smaller pieces; by this means the impurities
will be separated without the use of heat or water, and the gutta-percha
rendered suitable for use at a very small cost.

                  *       *       *       *       *

Public-domain text, read in full here on John Shaqi.

No reviews yet