Year: 1886

page_text: 1, TIMOTHY GREEN DOUGLAS of Castle Mills, Fountainbridge, Edinburgh, Rubber
Manufacturer do hereby declare the nature of this invention to be as follows:-
These improvements consist in applying to india rubber boots, insoles made of
leather or other suitable material, perforated with holes, and supported on the under
rubber insole of the boots by detached narrow bars of leather, india rubber, or other
suitable material, cemented or otherwise attached to the perforated insoles. These
bars thus form chambered spaces between the two insoles, which spaces are connected
with the outside air by means of channels or tubular openings, carried up the sides of
the boots. By these improvements I produce boots much more comfortable than
heretofore, preventing the excessive perspiration so common with ordinary india rubber
boots, and permitting them to be made much closer fitting and therefore more com-
fortable for the wearer.
CARPMAEL & Co.,
Agents for the Applicant.

page_text: .
Improvements in the Ventilation of India Rubber Boots.
I, TIMOTHY GREEN DOUGLAS of Castle Mills, Fountainbridge, Edinburgh Rubber
Manufacturer do 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 :-
These improvements consist in applying to india rubber boots, insoles made of
leather or other suitable material, perforated with holes, and supported on the under
rubber insole of the boots by detached narrow bars of leather, india rubber, or other
suitable material, cemented or otherwise attached to the perforated insoles. These
bars thus form chambered spaces between the two insoles, which spaces are connected
with the outside air by means of channels or tubular openings, carried up the sides of
the boots. By these improvements I produce boots much more comfortable than
heretofore, preventing the excessive perspiration so common with ordinary india
rubber boots, and permitting them to be made much closer fitting and therefore more
comfortable for the wearer.
In the drawings annexed I have shewn an india rubber boot ventilated as above
described.
Figure 1 is a side view of the boot with part cut away to shew the insole and the
entrance to the air channel leading from below it to the top of the boot. Figure 2 is
a cross section of the lower part of the boot-the section is taken through the air
channels. Figure 3 a cross section on the line A. B. Figure 1. Figure 4 is an
underside view. Figure 5 a longitudinal section and Figure 6 a face view of the
insole.
This insole is as above stated made of a plate A of leather or other suitable material
perforated with holes and has cemented on to its underside bars. B of leather or
other suitable material so as to form chambered spaces which communicate the one
with the other and allow of free circulation of air through them.
CC are the air channels leading from below the insole A to the top of the boot-
they are preferably formed of tubes inserted between the inner lining of the boot and
the waterproof fabric which forms its outer surface. If desired similar ventilating
tubes may be carried up from other parts of the boot from which it may be desired to
lead off currents of air.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
1.-An india rubber boot with air channels carried upwards from the lower part of
the sides of the foot and with an insole having cellular air spaces communicating one
with another on its under side substantially as described.
2. The perforated insole A with bars or projections B cemented or otherwise suitably
secured to its underside substantially as described.
Dated this Sixth day of April 1887.