Improvements in the Construction of Tension Pullies for Spinning and Analogous Machines.
Year: 1887

page_text: Date of Application, 18th Jan 1887
Complete Left, 12th Nov., 1887
Complete Accepted, 13th Dec., 1887
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Tension Pullies for Spinning
and Analogous Machines.
I, JOHN WILSON of the firm of Stansfield and Wilson, of No. 2 Commercial Street,
Shipley, in the County of York, Tinner, do hereby declare the nature of this invention
to be as follows:―
The object of this invention is to simplify the construction of what are commonly
called tension pullies, by making them in such a manner that, the peripheries and
sides are truer with the axis than when constructed in the ordinary manner.
I accomplish my object in the following manner :-I place a tinned plate or other
sheet of metal of the required diameter between a pair of dyes fitted to an ordinary
screw or hydraulic press, which when operated, blocks the plate to the configuration
of the dyes and forms a flange on the circumference, of suitable depth corresponding
to the diameter of the sheet before it was blocked. The opposite side of the pulley is
made in a similar manner, with a sheet of metal less in diameter than that used for
the opposite side of the pulley on which the flange for the circumference or periphery
is formed, so that when blocked, a flange of about one eighth of an inch is made on
the second sheet.
The two blocked plates aro placed together, and the axle secured thereto, the
flanges of the side plates forming the periphery or circumference being soldered
together, thereby completing the pulley, the circumference of which is true or uniform
with the axle and sides of the pulley.

page_text: Improvements in the Construction of Tension Pullies for Spinning
and Analogous Machines.
I, JOHN WILSON of 2 Commerical Street Shipley in the County of York,
Ironmonger and Tin-Plate Worker do hereby declare the nature of this invention
and in what manner the same is to bo porformed, to be particularly described and
ascertained in and by the following statement, that is to say:
It relates to improvements in the construction of tension pulleys for spinning and
analogous machines and has for its object the production of same in a cheaper manner
and with a greater degree of efficiency than heretofore.
Prior to this invention these pulloys were formed or constructed by two discs of
sheet metal being mounted upon suitable axle, these discs being joined together
around their outer edges by a strip of sheet metal of the breadth that it was desired
to construct the pulloy, said strip of metal forming as will be well understood the
periphery of said pulley, the process being more tedious than, and the joinings of the
parts together not being as efficient as, when these pulleys are constructed according
to this invention.
And in order that this my said invention may be more readily understood I have
hereunto appended a sheet of drawings illustrative thereof, wheroin figs. 1 and 2 are
side and edge views respectively of a pulley constructed according to said invention,
while fig. 3 is a sectional view of samo.
Similar letters refer to similar parts throughout the several views.
The object of this invention is attained by forming one of the sides a of the pulley
and the rim or periphery of said pulley in one piece of sheet metal, which may be
accomplished by the process commonly and well understood as stamping or pressing,
or otherwise as may be desired.
This disc a is mounted rigidly, as by being soldered, on the axle e upon which is
also mounted in a similar manner and suitable position another disc d, around the
outer edge of which is formed a flange e which is arranged to fit within the
periphery as illustrated by fig. 3, to which it is attached, as by being soldered, as
will be well understood.
с
In order that the discs ad may be more securely attached to the axle c the stay-
pieces are attached to the outer surfaces of said dises a d respectively, the same
being also attached to the axle c.
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. The formation or construction of a pulley by the disc a being joined to the
rim and the dise d having a flange e arranged to fit within said rim, to which it is
attached substantially as and for the purposes specified.
2. The disc a having a rim b, the disc d having its flange e, the axle c and the
pieces in combination in the manner and for the purposes substantially as
specified.
D
1 11
1
1000