Improvements in the Manufacture of Chinese India-rubber Shoes.
Year: 1897

page_text: Date of Application, 4th June, 1897
Complete Specification Left, 4th Mar., 1898-Accepted, 9th Apr., 1898
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Chinese India-rubber Shoes.
I, PATRICK MILLAR MATTHEW, Managing Director of The Victoria Rubber
Company Limited, Victoria India Rubber Mills, Leith Walk, Leith, N.B., do
hereby declare the nature of this invention to be as follows:--
This invention relates to improvements in the manufacture of Chinese india
rubber shoes and has for its object the production by machinery, or mechanical
means, of the details of manufacture characteristic of the uppers of these shoes,
which have hitherto been produced by hand labour.
In accordance with my improvements, I employ for the purpose of producing
the rubber sheet for the upper stock, any. suitable arrangement of rollers on one of
which are engraved the forms (in various sizes) of the uppers of the shoes.
The engraving includes the parallel rows of imitation stitching along the front
and sides of the shoes, which have hitherto been produced by means of a hand
stitch-wheel on completion of the shoes.
There are also engraved two channels so as to form in the rubber sheet the two
cords or stays which support the front of each shoe and which have hitherto been
formed by the insertion of a piece of cord between the cloth lining and the rubber
upper.
I also engrave round the inner edge of each upper a recess so as to thicken the
rubber sheet at that part and form a strengthening band round the opening of the
shoe.
By the said mechanical means I am enabled to obtain in relief an exact imita-
tion of stitching, which cannot be done by the ordinary hand wheel. By forming
in the rubber sheet the cords or stays above referred to, I produce them perfect and
regular in form which it is difficult to do by the means hitherto in use.
In addition to the perfect work which is obtained by my process, important
saving of hand labour and consequent economy in cost of production is effected..
Dated thin 2nd day of June 1807
Improvements in the Manufacture of Chinese India-rubber Shoes.
I, PATRICK MILLAR MATTHEW, Managing Director of The Victoria Rubber
Company Limited, Victoria India Rubber Mills, Leith Walk, Leith, N.B., do
Price 8d.1

page_text: hereby declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
This invention relates to improvements in the manufacture of Chinese india
rubber shoes and has for its object the production by machinery, or mechanical
means, of the details of manufacture characteristic of the uppers of these shoes,
which have hitherto been produced by hand labour.
In accordance with my improvements, I employ for the purpose of producing the
rubber sheet for the upper stock, any suitable arrangement of rollers on one of
which are engraved the forms (in various sizes) of the uppers of the shoes.
The engraving includes the parallel rows of imitation stitching along the front
and sides of the shoes, which have hitherto been produced by means of a hand
stitch wheel on completion of the shoes.
11:
There are also engraved two channels so as to form in the rubber sheet the two
cords or stays, which support the front of each shoe and which have hitherto been
formed by the insertion of a piece of cord between the cloth lining and the rubber
upper.
+
I also engrave round the inner edge of each upper a recess so as to thicken the
rubber sheet at that part and form a strengthening band round the opening of the
shoe.
'
But in order that my said invention may be more readily understood I have
hereunto appended an explanatory sheet of drawings in which
Fig. 1 represents a completed Chinese india rubber shoe as manufactured in
accordance with my invention.
Fig. 2 represents the developed surface of a portion of a roller, with the form of
one upper engraved thereon, used in the manufacture of such a shoe.
Fig. 3 represents a section of a portion of the upper, shewing the formation of
the strengthening band around the opening of the shoe.
In the said drawings A are the parallel rows of indentations by which the
imitation stitching a is transferred to the upper. Bare the channels by which the
stays supporting the front of the shoe are formed upon the upper and C is the
recess by which the rubber sheet is thickened to form the strengthening band c
round the opening of the shoe.
The said recess C is formed wedge shaped, with a channel at its base or broadest
portion so as to form the strengthening band around the opening of the shoe of a
section as shewn in Fig. 3, that is to say gradually thickened and surmounted by
a bead.
By the said mechanical means I am enabled to obtain in relief an exact imita-
tion of stitching, which cannot be done by the ordinary hand wheel. By forming
in the rubber sheet the cords or stays above referred to, I produce them perfect and
regular in form which it is difficult to do by the means hitherto in use.
In addition to the uniformly perfect work which is obtained by my process, an
important saving of hand labour and consequent economy in cost of production is
effected.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
1. In the manufacture of Chinese india rubber shoes, the production by
machinery, or mechanical means, of the details of manufacture characteristic of
the uppers of these shoes which have hitherto been produced by hand labour,
substantially in the manner as hereinbefore described and shewn.
2. The employment of rollers on one of which are engraved the forms of the
uppers of the shoes by which an exact imitation of stitching a is obtained in relief
and by which the supporting stays b are produced more perfect and more regular

page_text: in form, substantially as hereinbefore described and shewn in the accompanying
drawings.
3. In the manufacture of Chinese india rubber shoes, engraving a recess C round
the inner edge of the design of the upper upon the roller, whereby the rubber
sheet is thickened to form the strengthening band c round the opening of the shoe,
substantially as herein before described and shewn in the accompanying drawings.
Dated this 3rd day of March 1898.
JOHNSONS,
Applicant's Agents, 115, St. Vincent Street, Glasgow.
JOHNSONS,
Applicant's Agents, 115, St. Vincent Street, Glasgow.