Improvements in and relating to the Manufacture of Driving Belts and Bands.
Year: 1887

page_text: Date of Application, 25th June, 1887
Complete Left, 23rd Mar., 1888
Complete Accepted, 27th Apr., 1888
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Manufacture of Driving Belts
and Bands.
I, ROBERT DICK, of Greenhead, Glasgow, Lanarkshire, Manufacturer, do hereby
declare the nature of my invention to be as follows :-
My Invention comprises, and has for its object the giving to driving belts, and
driving bands or ropes, an improved elastic gripping action or effect, by the application
of a new material on their gripping or working surface; and which is particularly
applicable to driving belts and bands of the lighter class used for driving power looms
and other textile machinery, and for other purposes where a very regular and delicate
gripping and driving action is required commensurate with the work or power to be
transmitted; and which would slip when extra strain was brought against it, and yet
would maintain its maximum gripping effect, without getting glazed or losing its
efficient driving power.
The nature and novelty of the Invention consist in securing to the working and
gripping side or surface of driving belts and bands or ropes, a layer or thickness of
woollen or flannel serge, or cloth having woolly fibre on its outer surface. This new
material or woollen cloth is attached to the belt or band by a thin layer of gutta-
percha, or gutta-percha solution and heat; the belt with the gutta percha on it being
passed out of a heating chamber and fed between two pressing rollers, which would
press and attach the dry or hot flannel cloth with the woollen face outwards on to the
hot gutta-percha of the belt. The flannel band would be made of the same or proper
width to cover the belt or round band; and in either case it would be so guided
between the rollers as to be firmly secured over the whole width or surface. These
improvements are particularly applicable to the new or improved compound gutta-
percha and canvas driving belts and bands for which Letters Patent were granted to
me, No. 12,253 and No. 12,254, both dated 14th October 1885, by finally running the
otherwise finished belt or band with its outer covering of gutta-percha heated through
between their pressing and shaping plain or corrugated rollers, or grooved rollers for
the round bands, along with and so as to press and cement the woollen or flannel cloth
close on to the gutta-percha covering of the belts or bands while passing between the
rollers, as before stated. When this new flannel covering is to be applied to other

page_text: driving belts or bands of ordinary construction, such as those made of woven cotton
or of canvas and india-rubber combined, or of leather or other material, they would
first have a layer of gutta-percha solution spread over them, with heat applied before
or after the solution; and then when all the naphtha or other solvent was evaporated,
the belts would be reheated and have a thin layer of hot plastic gutta percha applied
while being passed between a pair of pressing rollers, and then in like manner have
the woollen serge applied thereto, while the gutta percha layer was hot, and being
passed between the said pressing rollers, all as hereinbefore described in reference to
my said new or improved driving belts and bands made of a compound of canvas and
gutta-percha with this elastic wool covering.

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to the Manufacture of Driving Belts
and Bands.
1, ROBERT DICK, of Greenhead, Glasgow, Lanarkshire, Manufacturer, do hereby
declare the nature of my invention and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement in
writing, reference being had to the accompanying Sheet of Drawings, and to the
letters and figures marked thereon, that is to say:-
My said Invention comprises, and has for its object the giving to driving belts, and
driving bands or ropes, an improved elastic gripping action or effect, by the application
of a new material on their gripping or working surface; and which is particularly
applicable to driving belts and bands of the lighter class used for driving power looms
and other textile machinery, and for other purposes where a very regular and delicate
gripping and driving action is required commensurate with the work or power to be
transmitted; and which would slip when extra strain was brought against it, and yet
would maintain its maximum gripping effect without getting glazed or losing its
efficient driving power. It would also be applicable for some kinds of heavy driving
belting.
Referring to Figures 1, 2, and 3 of the Diagram Drawings, the nature and novelty
of the invention and mode of carrying it into practice consist in securing to the
working and gripping side or surface of driving belts and bands or ropes made of
gutta-percha, india-rubber, leather or other material, a layer or thickness of woollen
or flannel serge, felt or cloth A, having woolly fibre on its outer surface. This new
material or woollen cloth A is attached to the main belt or band A¹ by a thin layer of
gutta-percha or gutta-percha solution first spread on its inner surface. The belt A¹
with gutta-percha on it is passed out of a heating chamber and fed between two
pressing rollers B B₁ and the solutionized woollen cloth A is also fed between the
pressing rollers which would press and attach the flannel cloth A with the woollen face
outwards on to the hot gutta-percha of the belt A². The flannel band would be made
of the same or proper width to cover the belt, or round band; and in either case it
would be so guided between a pair of small grooved rollers B, B' as to be firmly
secured over the whole width or surface. These improvements are particularly
applicable to the new or improved compound gutta-percha and canvas driving belts
and round bands for which Letters Patent were granted to me, No. 12,253 and
No. 12,254 both dated 14th October 1885, by finally running the otherwise finished
belt or round band with its outer covering of gutta-percha heated, through between
their pressing and shaping plain or corrugated rollers, or grooved rollers B, B¹, for
the round bands, along with and so as to press and cement the previously solutionized
or prepared woollen or flannel cloth A close on to the gutta-percha covering of the
belts or bands A while passing in a heated state between the rollers B, B¹, as before
stated. Referring to Figure 2:-When this new flannel covering A is to be applied
to other driving belts or round bands as indicated at A² of ordinary construction, such

page_text: as those made of woven cotton or of canvas and india-rubber combined, or of leather
or other material, they would first have a layer of gutta-percha solution spread over
them with heat applied before or after the solution, and then when all the naphtha or
other solvent was evaporated from the solutionized surface, the belt A2 would be
reheated and have a thin layer of hot plastic gutta-percha A" applied by hand in a
usual manner while passing between the pair of pressing rollers B, B', and then in like
manner have the woollen serge, previously solutionized on its inner surface, applied
thereto, as indicated in Figure 1, while both were heated and passed between the said
pressing rollers B, B', all as hereinbefore described with the elastic wool covering and
as further described in reference to my said new or improved driving belts and
bands made of a compound of canvas and gutta-percha under the aforesaid
Letters Patent. Figure 3 represents a front view of the rollers B B¹ for the flat
bands.
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
First. The manufacture of driving belts or round bands of gutta-percha and
canvas or india-rubber and canvas, leather, canvas or other material, with the acting
or driving surface of woollen or flannel serge, felt, or other woollen cloth, substantially
as and in the manner herein described in reference to and shown in the accompanying
Drawings.
Second. A driving belt or band having the acting or driving surface made of
woollen or flannel serge, felt or other woollen cloth, substantially as and for the
advantages herein described in reference to and shown in the accompanying
Drawings.