Improvements in the Construction and Manufacture of Axle Sash- Pulleys.
Year: 1890

page_text: Date of Application, 6th Aug., 1890-Accepted, 4th Oct., 1890
Improvements in the Construction and Manufacture of Axle Sash-
Pulleys.
We, WILLIAM BRANFORD, and WILLIAM BENJAMIN BRANFORD, trading together
in co-partnership as Branford Brothers, of Wolverhampton Street Foundry, Bilston
in the County of Stafford, Ironfounders, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
This invention has for its object improvements in the construction of the frames of
axle sash pulleys which, while obviating the unsightliness of frames divided down the
centre of the front plate, renders their manufacture at least as economical as when
made in such manner, so that practically all the advantages of the best constructed
frames (in which the front plate is formed in one piece) may be secured in combination
with the economy in manufacture of the ordinary divided frame.
In order that the invention may be clearly understood, we will proceed to describe
it with reference to the accompanying drawings, of which
Figure 1 is a side elevation of a complete axle pulley constructed according to
this invention,
Figure 2 a back view thereof,
Figure 3 a corresponding view to Figure 1 but taken as a section on line xx of
Figure 2 and with the pulley omitted,
Figure 4 an inside view of the loose cheek hereinafter described,
i
Figure 5 an inner edge view of such cheek, that is of the edge which is fixed to the
front plate as hereinafter described, and
Figure 6 a sectional view taken on line y y of Figure 1.
The cheek a is cast in one piece with the front plate b, and the other cheek c is cast
separately and is fixed to the front plate by rivets or screws passing through ears or
lugs e upon such cheek, and through holes d formed through the front plate b. In
putting together the three plain castings, namely the front plate b with the cheek a,
the pulley g, and the cheek c, which together with the rivets or screws constitute the
set of parts for a complete axle pulley, one side of the axle of the pulley is pushed into
the hole h formed therefor in the cheek a; and to enable this to be done the side of
the opening through the front plate which is opposite to the cheek a is chainfered
or splayed along its inner edge, as shewn at k Figure 6. This chamfer or splay
permits of the pulley being pushed the necessary distance, in a sufficiently inclined
position, through the opening i to allow of the axle passing down inside the cheek a
until it comes opposite the opening h, when it is pushed into such opening and the
pulley thus brought into its proper working position. The cheek c is then pushed over
the other end of the axle and riveted or screwed to the front plate.
No coring is required in moulding any of the parts. The front plate and cheek a
are moulded with the plate flatways and the cheek vertical, the cheek portion of the
pattern having, of course, the necessary draft for the purpose; and the cheek c may
be moulded similarly as the cheek a. The rivet or screw holes by which the cheek c
is fixed to the plate b, as also the holes by which the axle pulley is fixed to the
joinery, may be cast in, as the sand will leave its own cores therefor. The holes
through the cheeks to receive the axle are drilled. They may, of course, be cored if
desired, but drilling is preferred. The cheek c may be moulded flatways, in which
case it is preferred to drill the holes through the lugs, but the hole for the axle
may be cored, or the core be left in drawing the pattern. It is much preferred, however,
to mould the cheek e edgeways.
The above described method of construction affords, also, great facility for carrying

page_text: I
a line guard across the top of the frame for the whole depth thereof from front to
back, as it may be readily imoulded with the cheek c.
The cheek c may, of course, be fixed direct to the cheek a, but it is preferred to fix it
in the manner above described.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
1. An axle sash pulley having one of the cheeks of the frame cast in one piece with
the front plate, and the other cheek cast separately therefrom, substantially as
described.
2. An axle sash pulley having one of the cheeks of the frame cast in one piece with
the front plate, and the other cheek cast separately therefrom and fixed to the front
plate by rivets or screws passing through lugs on such cheek and through the front
plate, substantially as described.
3. An axle sash pulley having one of the cheeks of the frame cast in one piece
with the front plate, and the other cheek cast separately therefrom, and with the inner
edge of the main opening through the front plate which is opposite to the first
mentioned cheek chamfered or splayed, substantially as described.
4. An axle sash pulley constructed substantially as described and shewn by the
drawings herewith.
5. The improvements in the manufacture of axle sash pulleys, that is to say, casting
one cheek of the frame together with the front plate, and casting the other cheek
separately therefrom, and then fixing together the two parts of the frame with the
pulley in position between the cheeks, substantially as described.
Dated this Fifth day of August 1890.
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicants.