AN IMPROVEMENT IN PULLEYS FOR MACHINE BELTS
Year: 1877

page_text: LETTERS PATENT to Charles Toope, of the City, County, and State of New
York, and at present of Chancery Lane, in the County of Middlesex, for the
Invention of "AN IMPROVEMENT IN PULLEYS FOR MACHINE BELTS."
Sealed the 13th October 1877, and dated the 22nd May 1877.
PROVISIONAL SPECIFICATION left by the said Charles Toope at the Office
of the Commissioners of Patents on the 22nd May 1877.
CHARLES TOOPE, of the City, County, and State of New York, and at present:
of Chancery Lane, in the County of Middlesex. AN IMPROVEMENT IN PULLEYS FOR
MACHINE BELTS."
"
This Invention relates to an improvement in pulleys for machine belting, having
for its object to increase the frictional adhesion of the belt on the pulley to prevent
the belt slipping, and thus augment the driving power of the belt.
The Invention consists in a facing or covering composed of layers of paper, applied
to the face or periphery of the pulley in the following manner.
The paper is preferably cut into short lengths, rather wider than the face of the
pulley, and wetted with a solution of borax, and then applied to the pulley with a
strong adhesive cement. The strips butt end to end, and the several layers break
joint with one another, to produce an even surface to the covering.
The paper, which as above-mentioned, is cut rather wider than the pulley, is
trimmed off after it is on.
Before the first layer of the paper covering is applied the face of the pulley must
be cleaned of oil, grease, rust, or any foreign substance.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Charles Toope in the Great Seal Patent Office on the 21st November
1877.
CHARLES TOOPE, of the City, County, and State of New York, and at present of
Chancery Lane, in the County of Middlesex. "AN IMPROVEMENT IN PULLEYS FOR
MACHINE BELTS."
This Invention relates to an improvement in pulleys for machine belting, and has
for its object to increase the frictional adhesion of the belt on the pulley, and prevent
slipping, and thus augment the driving power of the belt.
The Invention consists in a facing or covering of paper, applied to the face or
periphery of the pulley, iu the following manner.
If one or two layers of paper are to be applied, the paper may be in one strip of
sufficient length, but if more than one layer is to be applied, it is preferably cut into
short lengths, although I do not limit or bind myself in this respect.
The paper is wetted with a solution of borax, and then applied to the pulley with a
strong adhesive cement, care being taken not to produce creases or wrinkles in the
paper. The cement is spread on the surface of the pulley and also on both sides of
each successive layer of paper. The strips butt end to end, and the several layers break
joint with one another, to ensure an even surface of the covering.
The paper is cut rather wider than the pulley, and the edges are trimmed off after
it is on the pulley, and has become dried.
Before the first layer of the paper covering is applied the face of the pulley-must
be cleaned of oil, grease, rust, or any foreign substance.
I find that a good straw paper answers best, but do not limit myself to any
particular kind of paper.
In order that the Invention may be better understood, I have, in the Drawing,
represented in side elevation and section, a pulley provided with the paper covering
of this Invention. B1, B2, B3, indicate three layers of paper, but I do not limit
myself to any number of layers, as a single layer may answer the purpose.
Having described the nature of my Invention, and the manner of performing the
same, I declare that what I claim as my Invention to be protected by the herein-
before in part recited Letters Patent, is,
The application to pulleys, for transmitting power, of a facing or covering of paper,
substantially as and for the purpose specified.
In witness whereof, I, the said Charles Toope, have hereunto set my hand
and seal, this Nineteenth day of November, in the year of our Lord One
thousand eight hundred and seventy-seven.
249
MAAR
CH. TOOPE. (L.S.)