An Improved Driving Pulley.
Year: 1895

page_text: Date of Application, 10th Sept., 1895
Complete Specification Left, 27th Jan., 1896-Accepted, 29th Feb., 1896
An Improved Driving Pulley.
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I JOHN COTTON of 176 Newbridge Lane Stockport, in the County of Chester,
Cotton Spinner, do hereby declare the nature of this invention to be as follows :-
This invention relates to what are known as "fast" driving pulleys used for
actuating mules or other machinery in connection with a loose pulley upon which
the driving strap is placed when the machine is at rest or not required to be in
motion.
The object of the invention is to enable the driving strap or band to get a firmer
and quicker hold or grip upon the "fast" pulley when being passed thereon from
the "loose " pulley.
For this purpose I cut or form upon that edge of the "fast" pulley which is
next to the "loose" pulley, a series of short grooves or cuts preferably at an
angle of about forty-five degrees at intervals all round the outer circumference so
that as the driving strap is being passed from the loose onto the fast pulley to
set the machine in motion it takes an instantaneous and firm grip of the same, thus
starting the machine with greater quickness and certainty than can be done with
the ordinary smooth faced pulley.
Dated this 9th day of September 1895.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Driving Pulley.
I, JOHN COTTON of 176 Newbridge Lane, Stockport in the County of Chester,
Cotton Spinner, 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:—
This invention relates to what are known as "fast" pulleys, such as are used
for driving mules and other machinery in connection with a "loose" pulley upon
which the driving belt runs when the machine is at rest or is not required to be in
motion.
The object of the invention is to enable the driving belt to get a firmer and
quicker hold or grip upon the fast pulley when transferred to that pulley from the
loose pulley.
I will describe my said invention with reference to the accompanying drawings.
in which
Figure 1 represents a side elevation of the fast pulley, and
Figure 2 a plan of a fast and loose pulley, the fast pulley being in each case
illustrated as constructed or modified according to my invention.
Upon that part of the periphery of the fast pulley A which in use is next to-
the loose pulley B, I cut or otherwise produce a series of channels C which may
be arranged more or less diagonally as shewn by Figure 2, and which preferably
run out to nothing at about one-third of the width of the face. In all ordinary
[Price 8d.1

page_text: cases the channels may be at an angle of 45° or thereabouts, and they may be cut
by a suitable milling tool or otherwise. Or, instead of the channels, equivalent
cavities holes or the like may be employed. They may conveniently be about
one-fourth of the width of the face of the pulley apart, or at a greater pitch, or
so close together if desired, that the edge of the pulley is practically corrugated.
When a fast pulley constructed as hereinbefore described is employed, the
machine, shafting or the like on which it is secured, is started more certainly and
quickly and with less punishment to the belt, when the driving belt is shifted
upon it.
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 fast pulley to be used in combination with a loose pulley and having formed
upon its periphery next to the loose pulley a series of channels indentations cavities
or the like substantially as and for the purpose hereinbefore described with
reference to the accompanying drawings.
Dated this 25th day of January A.D. 1896.
W. E. HEYS & SON,
Agents for the Applicant.