Improvements in the Manufacture of Driving Straps or Belts.
Year: 1889

page_text: Date of Application, 19th Feb., 1889
Complete Specification Left, 19th Nov., 1889-Accepted, 21st Dec., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Driving Straps or Belts.
I, WILLIAM OLIVER of Goe Cross in the County of Chester India rubber
manufacturer do hereby declare the nature of this invention to be as follows:-
This invention relates to the composition and mode of manufacture of straps or
belts which are or may be employed for the purpose of propelling machinery, and the
object of this invention is to form a belt or strap that will effectually grip the pulley
to be driven and thus prevent loss of power, while retaining the appearance and
pliability of leather: In this invention I form a belt or strap of cloth preferably that
which is known as American cotton duck, said cloth after weaving having been
stretched to the fullest extent in a stretching machine in order that it may be of one
equal tension preparatory to the herein after described process of coating, and not
liable to stretch when in use: In a machine known as amortar mill or other suitable
appliance, I inix and grind a solution which I compose of the following substances and
of or nearly the following proportions: Whitening or other mineral white six parts,
sulphur and colouring pigments one fifteenth part with any preferred quantity of
oxilized oil, and a small solution of India rubber dough or paste. I apply this
mixture in the form of dough or paste to the herein before described cotton duck or
to prepared canvas, or other fabric that is suitable for making belting: I pass the
fabric which is thus coated through pressure rollers, and then submit the coated cloth
to a drying process by being passed over heated cylinders or other suitable appliances:
the material which is thus produced I form into belting in the ordinary way by means
of the doubling process, in plies, according to thickness that may be required, and
submit the same material again to very great pressure: By these means a solid
substance is formed which constitutes the belting: I sew, or stitch said belting with
rows of stitches, which I place preferably about one inch apart: In order to prevent
the edges of said belting from fraying and to make them smooth and polished to aid
in resisting friction I apply a dressing which 1 compose of shellac and gum or other
like materials.
Daind this 18th day of February 1880
THOMAS PRESCOTT,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Driving Straps or Belts.
T, WILLIAM OLIVER of Gee Cross in the County of Chester India 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 :-
The improvements which are the subject of this invention relate to the composition
and mode of manufacture of straps or belts such as are or may be employed for the
purpose of propelling machinery, and the object of this invention is to form a belt or
strap that will effectually grip the pulley to be driven and thus prevent loss of power,
while retaining the pliability and having the appearance of leather: In this invention
I form a belt or strap of cloth, preferably that which is known as American cotton
duck, said cloth. after weaving having been stretched to the fullest extent in a
stretching machine, in order that it may be of one equal tension, preparatory to the
hereinafter described process of coating, and not liable to stretch when in use: In a
machine known as a mortar mill or in other suitable appliance, I mix. and grind a

page_text: solution which I compose of the following substances, and of, or nearly, the following
proportions.
Whitening or other mineral whites, one-fifteenth part, with any preferred quantity
of oxidized oil, and a small solution of india rubber dough or paste: I apply this
mixture in the form of dough or paste to the herein before described cotton duck, or
to prepared canvas, or any other fabric that is suitable for making belting: I pass the
fabric which is thus coated through pressure rollers, and then subject the coated cloth
to a drying process by being passed over heated cylinders or other suitable appliances:
the material which is thus produced I form into belting in the ordinary way by means
of the doubling process in plies, according to the thickness that may be required.
and submit the same material again to very great pressure. By these means a solid
substance is formed which constitutes the belting: 1 sew or stitch said belting with
rows of stitches which I place preferably about one inch apart: In order more
clearly to describe this my invention, I have annexed hereunto a sheet of drawings:
in the views therein shown, similar letters refer to similar parts: Fig. I represents a
transverse section of belting manufactured in accordance with this invention: In
this view the cloth A is shown doubled, so that the edges A¹ of said cloth are placed
inside the belting in the process of doubling. The outer edges of the manufactured
belting are thereby formed even and said edges will not readily fray or wear.
Fig. 2 is view of face of strap, and represents the rows of stitches hereinhefore
described. In order to afford additional protection to the manufactured edges of
said belting and to aid in resisting friction without fraying, by making them smooth
and polished, I apply a dressing which I compose of shellac and gun or other like
materials.
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,
A strap or belt, that is manufactured in the manner, and of the materials.
substantially as herein before described, and employed for the purpose of propelling
machinery.
Dated this 16th day of November 1889
THOMAS PRESCOTT,
Agent for Applicant.