Improvements in Sash Pulleys or Axle Pulleys.
Year: 1893

page_text: Date of 'Application, 2nd Jan., 1893
Complete Specification Left, 18th Sept., 1893-Accepted, 21st Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Sash Pulleys or Axle Pulleys.
I FREDERICK RYLAND of Houghton Street West Bromwich in the County of
Stafford Ironfounder do hereby declare the nature of this invention to be as
follows:-
66
My invention consists of the improvements hereinafter described in an invention
for which Letters Patent were granted to me dated June 4th 1881 No. 2159 for
Improvements in the Manufacture of Axle Pulleys." The said patented invention
consists in casting upon the pulley and its axle the frame in which the said pulley
works. The said pulley and its frame being both of cast iron the rotation of the
axle of the pulley in its bearings in the frame gives rise to some friction and the
object of my present invention is to reduce the friction referred to and thereby to
make the pulley work more smoothly and to reduce its wear.
I cast the pulley in the usual way but instead of introducing the pulley into the
mould in which the frame is directly cast upon it I first place upon the trunnions
forming the axle of the pulley close fitting coverings of thin sheet steel or wrought
iron bushes formed by stamping or pressing. The pulley with its trunnions thus
covered is introduced into the mould in which the frame is cast and the frame is
then cast on the bushes or covered trunnions of the pulley.
The trunnions of the pulley thus formed running in the smooth steel or wrought
iron bushes the pulley works very smoothly and with less friction and wear than
ordinary pulleys.
Dated this 2nd day of January 1893.
W. T. WHITEMAN,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Sash Pulleys or Axle Pulleys.
I, FREDERICK RYLAND, of Houghton Street, West Bromwich, in the County
of Stafford Iron Founder, 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 :-
66
My invention consists of the improvements hereinafter described in an invention
for which Letters Patent were granted to me dated June 4th 1881-No. 2459 for
Improvements in the Manufacture of Axle Pulleys." The said patented invention
consists in casting upon the pulley and its axle the frame in which the said pulley
works. The said pulley and its frame being both of cast iron the rotation of the
axle of the pulley in its bearings in the frame gives rise to some friction and the
object of my present invention is to reduce the friction referred to and thereby to
make the pulley work more smoothly and to reduce its wear.
I cast the pulley in the usual way but instead of introducing the pulley into the
mould in which the frame is directly cast upon it, I first place upon the trunnions
forming the axle of the pulley close fitting coverings of thin sheet steel or other
hard metal bushes formed by stamping or pressing.
The pulley with its trunnions thus covered is introduced into the mould in which
the frame is cast and the frame is then cast on the bushes or covered trunnions of
the pulley.
The trunnions of the pulley running in the smooth steel or hard metal bushes
thus formed in the frame causes the pulley to work very smoothly and with less
friction and wear than ordinary pulleys.

page_text: Figure 1 of the accompanying drawing represents in front elevation and Figure 2
in section, a cast pulley which I use in carrying my present invention into effect,
a being the pulley proper and b, b the trunnions or axle of the same.
Figure 3 represents one of the close fitting coverings or bushes c which are
placed upon the trunnions or axle of the pulley before the frame is cast upon the
said trunnions or axle and Figure 4 represents in section the pulley with its
trunnions or axle fitted with the close fitting coverings or bushes c before the
casting of the frame upon the pulley. The coverings or bushes c, c may be made
of thin sheet steel or other hard and ductile metal or alloy, such as gun metal and
formed by stamping or pressing.
Figure 5 represents in section a finished sash pulley or axle pulley made
according to my invention that is to say, after the frame d, d has been cast upon
the trunnion covered or bushed pulley b, c Figure 4. The cast frame d, d has on
its inner sides holsters or bearings e, e for receiving the trunnions or axle b, b of the
pulley, the interior of the said holsters or bearings e, e being lined with the smooth
and hard metal bushes c, c in which the trunnions b, b of the pulley work very
smoothly and with less friction and wear than ordinary pulleys as will be understood
by an examination of Figure 5.
The mould in which the frame d is cast upon the bushed or covered trunnions or
axle of the pulley a and the casting process constitute no part of my present
invention.
Having now particularly described and ascertained the nature of my invention
and the manner in which the same is to be performed I declare that I claim as my
invention of "Improvements in Sash Pulleys or Axle Pulleys'
"
Lining or covering the interior of the holsters or bearings of the frames of such
sash pulleys or axle pulleys as are made by casting the said frames upon the
trunnions or axles of the pulleys, with steel or other hard ductile metal or alloy for
the purpose and substantially as herein before described and illustrated in the
accompanying drawing.
Dated the 15th day of September 1893.
FRED. RYLAND.