Improvements in or relating to Axle and like Pulleys.
Year: 1899

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Axle and like Pulleys.
I, WILLIAM ELLIS THORP, of Craig-Y-Nos, Grove Terrace, Llandudno, Wales,
Joiner, 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 improvements in pullies, and has for its object to
provide a pulley in which the casting or case in which the pulley-wheel has its
bearings, is made in one piece, so as to dispense with rivets and other fastenings
usually employed, a further object being to simplify the construction of such
casting or case and to provide means whereby the pulley-wheel can be readily
mounted in its bearings and removed therefrom.
And in order this my said invention may be the more readily understood
and carried into practical effect, reference is hereby made to the accompanying
sheet of illustrative drawings, wherein :-
Fig. 1 is a face view of a complete axle-pully constructed in accordance with
this invention, and
Fig. 2, a perspective view of same, with part of the casting or case broken away
to more clearly shew the construction thereof.
Referring to the drawing, wherein like letters of reference indicate corresponding
parts wherever occurring in both figures, a represents the rectangular face plate of
the casting or case, which plate is cast integral with the rear portion consisting of
two parallel side-plates b, and a top plate c, the back and under side of the said
casting or case being of open form.
A rectangular opening d is formed in the face plate a, such opening communi-
cating with the rear part of the casting or case.
Parallel grooves or channels e are formed in the side-plates 6 of the casting or
case, such grooves or channels extending from the front of the face-plate a to about
mid-way of the said side-plates b, where they terminate in circular openings f
formed in such side plates b. These circular openings f constitute the bearings
for the axle g of the pully-wheel g to revolve in.
The said parallel grooves or channels e are given a downwardly inclined direction
from the face plate toward the circular openings in the side plates, so that when
the axle g¹ of the pully-wheel g is slid along such grooves or channels e and into
its bearings f, the said pully-wheel will be prevented from being accidentally
displaced from the casting or case owing to such inclination of the grooves or
channels, an upward movement having to be given to the said pulley, in order
to remove it from the casting or case.
Screw-holes are provided in the face-plate a for the purpose of fixing the
casting or case, by means of screws or their equivalent, in a window-frame or
other article or place to which it is applied.

page_text: 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:
CLAIMS.
1. The improvements in pulleys, consisting in a casting or case having an
integral face-plate, sides and upper portion, grooves or channels being provided in
said sides, terminating in circular openings, substantially as specified.
2. In pulleys, the casting or casing having a face plate a, parallel side plates b,
and top plate e formed integral; in combination with parallel grooves or channels e
leading from the front of said face plate to two corresponding circular openings
in the parallel side plates, said grooves or channels having a downwardly inclined
direction toward the said circular openings, substantially as and for the purpose
described, and as set forth in the drawings.
1
HUGHES & YOUNG,
55 & 56, Chancery Lane, London, W.C., Agents for Applicant.