Improvements in and relating to the Covering of Driving Pulleys, Wheels, and the like.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to the Covering of Driving Pulleys,
Wheels, and the like.
I, ALEXANDER HENDRY, of 41, Canning Street, in the County of the City of
Glasgow, Saddler, do hereby declare the nature of my invention to be as
follows;-
This invention has reference to an improved method of covering pulleys, wheels,
and the like with a driving or gripping surface.
According to my improvements cut leather into a thin continuous strip or
strand, either lengthways or circularways out of the hide. This strand is
then thoroughly stretched and wound on to a bobbin. The pulley or wheel to be
covered is placed on a shaft, and the leather strand is led from bobbin and passed
between rollers or other tension regulating device before reaching pulley.
The first strand is held on to edge of pulley by a clamp device, or otherwise
and then the pulley is turned to wind on the thin strand in parallel layers, so that
the pulley is covered with one piece of leather from end to end. Instead of the
pulley rotating, it may be stationary, and the strand of leather wound round it
by mounting the bobbin carrying the leather strand as also the tension regulating
device on a fever, which would be turned round to wind the strand on pulley. The
layers of leather may be secured to the pulley by glue or other cement, or be
secured together by wooden pegs or by screwing, nailing, or sewing, or by rivets
entering holes in pulley and with eyes on top through which transverse pins
would pass.
Washers of leather with bevelled edge or metal strips or flanges may be shrunk
or fitted on ends of pulley to bear up against leather strands.
In some cases the strand may be spliced to another piece, either by an overlap
or butt joint and sewn on to an overlapping washer which would have its joint
also sewn on to the strand.
Knee pieces of metal may be placed round the pulley to keep the leather from
slipping off, and be formed with holes through which nails would be passed into
the leather.
A transverse groove may be formed across pulley, and a wire or rod lie in same
over which the leather would pass, so as to more effectually grip the leather and
prevent it from slipping, or a groove or grooves may be formed around the pulley
and the wire dispensed with.
The finished leather covered pulley would have the outside edges or washers
secured to the strands either by screwing, nailing, pegging or sewing.
Dated the 4th day of February 1898.

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to the Covering of Driving Pulleys,
Wheels, and the like.
I, ALEXANDER HENDRY, of 41, Canning Street, in the County of the City of
Glasgow, Saddler, 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, that is to say:-
This invention has reference to an improved method of covering pulleys, wheels,
and the like with a driving or gripping surface.
And in order that my said invention and the manner of carrying same into
practice may be properly understood I have hereunto appended a drawing repre-
senting a perspective elevation of appliances for carrying my improvements into
practice.
Referring to the drawing:
According to my improvements I cut leather into continuous strips or strands,
either lengthways or circularways out of the hide. The strand is then thoroughly
stretched and wound on to a bobbin. The pulley or wheel a to be covered is
placed over a disc plate a¹ on a shaft A, and the leather strand b is led from
bobbin and passed round rollers B B¹ fitted with a weighted lever frame B2 or
other tension regulating device before reaching pulley a.
The strands may be
placed on the pulley either on the edge or the flat.
The first strand is held on to edge of pulley a by a clamp device, nail or other-
wise, and then the pulley is turned by wheel gearing A to A¹ to wind on the
thin strand in parallel layers, so that the pulley is covered with leather from end
to end. The layers 6 of leather may be secured to each other and to the pulley a
by glue or other cement led by a pipe c from a vessel c¹ or be secured together by
wooden pegs or by screwing, nailing, rivetting, sewing, or other equivalent means.
A kneed lever and guide rollers d are fitted to bear over each strand of
leather as it is being coiled on to pulley a, and a spring lever is fitted to also
press over the strands, these rollers and levers being secured in adjustable
vertical frames C.
Knee pieces of metal may be placed round the pulley to keep the leather from
slipping off, and be formed with holes through which nails would be passed into
leather.
A transverse groove may be formed across pulley, and a wire or rod lie in same
over which the leather would pass, so as to more effectually grip the leather and
prevent it from slipping, or a groove or grooves may be formed around the pulley
and the wire dispensed with.
By a modified arrangement a groove may be formed in the leather strand and
a wire he inserted in same to more firmly secure the strands to pulley.
The finished leather covered pulley would preferably have on outside edge
washers of leather secured to the strands either by screwing, nailing, pegging or
sewing.
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:-
1
First. The method of covering pulleys, wheels, and the like with strips or
strands of leather substantially as set forth.

page_text: Second. Pulleys, wheels, and the like covered with strips or strands of leather,
substantially as set forth.
Dated the 4th day of November 1898.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.