An Improved "Axle Pulley" and Method of Manufacturing the same.
Year: 1890

page_text: Date of Application, 19th Nov., 1890
Complete Specification Left. 19th Aug., 1891-Accepted, 19th Sept., 1891
PROVISIONAL SPECIFICATION.
An Improved "Axle Pulley" and Method of Manufacturing
the same.
WILLIAM HARMER BRISCOE of 120 Branston Street Birmingham in the County
of Warwick Manufacturer do hereby declare the nature of this invention to be as
follows:-
My improved axle pulley" consists of sheet metal stampings disposed and
arranged so as to secure accurate working neat finish, and economy of manufacture.
The term "axle pulley" is used in the hardware trade, to describe a pulley, wheel,
and axle, enclosed in a frame; and adapted to carry a cord having a weight at
each end, such weights being frequently a window sash, at one end of the cord, and
a sash-weight, (employed as a counterbalance) at the other. These said "axle
pulleys" have heretofore been made of cast and wrought parts, combined and fixed
together in various ways, but this my improved device, consists of a pulley, axle,
and frame, of wrought sheet metal, and it is therefore light and durable. In carrying
my invention into effect. I form the frame of a single blank cut from sheet metal.
In that part of the blank which forms the front of the frame, I pierce an oblong
aperture, and in two wings of the blank which form the sides of the frame, I pierce
apertures, and raise the metal, so as to form bearings for the axle of the pulley.
The aforesaid wing portions of the blank, have at the upper part of the said wings,
extensions of metal which are afterwards bent and folded so as to form a shield or
housing to protect and guide the cord passing over the pulley. In constructing the
pulleys, or cord carrying wheels for use in combination with the said frames, I take
a sheet metal blank of any desired size. The blank is then stamped or raised so
as to take the shape of half a complete pulley and axle, the dividing line, being at
right angles to the axle, and in the centre of the pulley itself. Two such raised
blanks, being placed together with the axles pointing outwards, will form a complete.
pulley and axle, with groove for the cord. The axles of the pulley which are
raised from the sheet metal blank as afore-described, I further strengthen by placing
on them, a sheet metal cap; this said cap is forced on in such a way as to require
great force to detach it. The two blanks aforesaid, when placed together, so as to
form a complete pulley, are retained in position by being fixed together, by tongues
rivets, solder, or other well known means. The pulley as described, is enclosed in
the aforesaid frame in the following manner. The aforesaid wings are pressed or
bent inwards so as to stand at right angles to the front of the frame.
Before
completely closing the wings to a right angle the aforesaid pulley is placed between
the sides. The axles of the pulley engage with the bearings formed in the sides.
The wings or sides being now closed to a right angle, the pulley between them is
free to turn on its axis, and a portion of the pulley protrudes through the oblong
aperture formed in the front of the frame.
The stampings may be covered in whole or in part with thin sheet metal of a
superior kind to the main body, or the stampings may be polished and plated with
brass, nickel or other metal by any well known process.
Dated this 18th day of November 1890.

page_text: "
COMPLETE SPECIFICATION.
An Improved Axle Pulley" and Method of Manufacturing
the same.
WILLIAM HARMER BRISCOE 120 Branston Street Birmingham in the County
of Warwickshire, Manufacturer 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 :-
The
My improved axle pulley consists of sheet metal stampings disposed and arranged
so as to secure accurate working neat finish and economy of manufacture.
term "axle pulley" is used in the hardware trade to describe a pulley wheel and
axle enclosed in a frame and adapted to carry a cord having a weight at each end,
such weights being frequently a window sash at one end of the cord and a sash
weight (employed as a counterbalance) at the other. These said axle pulleys have
heretofore been made of cast and wrought parts combined, and fixed together in
various ways, but this my improved device, consists of a pulley, axle, and frame, of
Wrought sheet metal and it is therefore light and durable. In carrying my invention
into effect I form the frame of a single blank cut from sheet metal. In that part
of the blank which forms the front of the frame I pierce an oblong aperture, and
in two wings of the blank which form the sides of the frame I pierce apertures and
raise the metal so as to form bearings for the axle of the pulley. The aforesaid
wing portions of the blank have at the upper part of the said wings extensions of
metal, which are afterwards bent and folded so as to form a shield or housing to
protect and guide the cord passing over the pulley. In constructing the pulleys or
cord carrying wheels for use in combination with the said frames, I take a sheet
metal blank of any desired size. The blank is then stamped or raised, so as to
take the shape of half a complete pulley and axle, the dividing line, being at right
angles to the axle and in the centre of the pulley itself. Two such raised blanks
being placed together, with the axles pointing outwards, will form a complete
pulley and axle, with groove for the cord.
The axles of the pulley which are raised from the sheet metal blank as afore
described, I further strengthen, by placing on them a sheet metal cap this said cap
is forced on in such a way as to require great power to detach it.
well known means.
The two blanks aforesaid, when placed together, so as to form a complete pulley,
are retained in position by being fixed together, by tongues, rivets solder or other
The pulley as described is enclosed in the aforesaid frame in
the following manner. The aforesaid wings are pressed or bent inwards so as
to stand at right angles to the front of the frame. Before completely closing the
wings to a right angle the aforesaid pulley is placed between the sides. The axles
of the pulley engage with the bearings formed in the sides. The wings or sides
being now closed to a right angle, the pulley between them, is free to turn on its
axis, and a portion of the pulley protrudes through the oblong aperture formed in
the front of the frame.
The stampings may be covered in whole or in part with thin sheet metal of a
superior kind to the main body, or the stampings may be polished and plated with
brass, nickel or other metal by any well known process.
In order my invention may be clearly understood I append one sheet of drawing
in which
Fig. 1 is an outline of the blank forming the frame.
Fig. 2 is a section on line A. B. of Fig. 3. and
Fig. 3 is a side elevation of a complete axle pulley.
Similar letters refer to similar parts throughout the drawings.
In Fig. 1 the parts marked C. D. E indicate the apertures cut in the blank.
F. shews the wing extension; the dotted lines indicate the line upon which the
wings are folded back to form the frame. In Fig. 2 the said frame is shewn in

page_text: section and the pulley formed of two halves riveted together is also indicated
by G G. H. H. are the caps which form part of the axle. In my Provisional
Specification I described these as being placed on the raised axles of the half
pulleys G. G. but I prefer inserting them inside as shewn at H. H. On the
drawing in Fig. 2 I shews the thin metal covering of the half pulleys G G. At J
Fig. 3. is shown the metal sheath or cover to the front of the pulley. At F Fig. 3 is
shewn the metal extensions curved inwards towards each other to form a guide in
threading a cord over the pulley.
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 [
claim is-
1st. In an axle pulley the use of a metal blank forming a complete frame with
bearing and cord guide substantially as described.
2nd. In forming wheels for use in axle pulleys; the employment of two blanks
which are fitted together to form a complete pulley as herein described.
3rd. In axle pulley frames and wheels the use of a thin metal sheathing or
covering bent around the wheel or around the frame substantially as herein
described.
Dated this 18th day of August 1891.