Improvements in the Manufacture of Frames for Axle Pulleys.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Frames for Axle Pulleys.
I, JOHN EBENEZER HILL, of Church Villa, High Street, Lye, Stourbridge, än
the County of Worcester, Commercial Traveller, do hereby declare the nature of
this invention to be as follows;
-
This invention has reference to the manufacture of the frames of axle pulleys
particularly those which are used for window sash cords. The said axle pulley
frames are at present usually made of cast iron but when so made are liable to
break. I manufacture the said axle pulley frames from sheet iron or sheet steel
or sheet brass or other sheet metal in the manner hereinafter described whereby
I am enabled to produce a better finished and stronger article than heretofore
and at a lower cost.
According to one arrangement of carrying out my invention I make the body
of the axle pulley frame from an elongated sheet metal blank which is of the
proper length to form the two sides and ends of the body. This blank is bent
about centrally at the top of the body and the halves of the blank are brought
down parallel with each other side by side so as to form the two sides of the body
provided with the bearings in which the axle of the pulley turns; the ends of
the blank are bent round and meet together at the bottom of the body. The
said body has two side projecting parts standing out at right angles therefrom to
form a flange for securing the body to the base or front of the frame as herein-
after described. The said front or base is made of a sheet metal blank which is
of about the same length as the 'fiuished base but is about double the width of
the same.
At about the centre of the base there is pierced an elongated hole
corresponding with the shape and size of the body through which the axle pulley
protrudes and at each side of the blank there is a recess corresponding with one
half of the body. The said blank is bent longitudinally along two parallel sides
at such a distance from the sides of the blank that when the side parts are folded
over they meet at about the centre line of the base or front and thus the base
is made of two thicknesses of metal which embrace between them the said pro-
jecting flange parts of the body. Each side of the body is pierced with a hole
to form the bearing for the axle of the axle pulley and the metal is by preference
raised round the hole so as to form a hollow boss on the outside of each side ot
the body to constitute a bearing for the axle of the axle pulley to work in. Or
the said bearings may be formed by flanged bushes somewhat like eyelets raised
from sheet metal placed in the said holes of the body from the inner sides of the
same the bosses of the axle pulley working against these flanges on the inside
of the body.
The sheet metal which forms the front or base of the frame may have a pro-
jecting part at each end to fold down over the ends and keep the said folded down
parts in place.
Instead of forming the base or front of the frame as 'above described the base
or front of the frame may be formed of three parts namely, a parallel sided

page_text: sheet metal blank which is somewhat wider than the base of the frame of the
axle pulley and is of about the same length the sides of this blank being closed
over the edges of two shorter blanks which are each made of about half of the
length of the base and are slotted out so as to slide in endwise and clip the body
part of the axle frame between them and thus be secured together when the sides
of the longer blank are closed over their edges as above described.
Or the base may be formed of two sheet metal blanks between which the
flanged parts of the body are clipped, one of said blanks having edge clips which
clip and are closed down over the edges of the other blank to secure the parts
together.
It will be evident that the base or front of the axle pulley frame may, without
departing from the nature of my said invention, be made in various other ways
from sheet metal so as to secure to the said body above described by parts of the
base being closed over the flanged parts of the body so as to embrace the said
flanged parts between the two thicknesses of metal of which the front of the base
of the frame is formed and thus secure the body and base together.
The methods of manufacture above described enable me if desired to make the
front or base of the frame of sheet brass whilst the body is formed of sheet iron
or steel.
בד
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Frames for Axle Pulleys.
I, JOHN EBENEZER HILL, of Church Villa, High Street, Lye, Stourbridge, in
the County of Worcester, Commercial Traveller, 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 has reference to the manufacture of the frames of axle pulleys
particularly those which are used for window sash cords. The said axle pulley
frames are at present usually made of cast iron but when so made are liable to
break. I manufacture the said axle pulley frames from sheet iron or sheet steel
or sheet brass or other sheet metal in the manner hereinafter described whereby
I am enabled to produce a better finished and stronger article than heretofore
and at a lower cost.
I will describe my invention by referring to the accompanying drawings on
which Fig. 1 is a general view of an axle pulley and frame with the frame
constructed according to one arrangement of my invention; Figs. 2 and 3 are
separate views of the body part of the said frame and Fig. 4 shews a sheet metal
blank partly formed into the base part of the said frame; Fig. 5 is a cross section
of the body part of the said frame; Figs. 6 and 7 illustrate a modified method
of forming the base part of the frame; Fig. 8 is a general view of an axle pulley
and frame with the frame formed according to another arrangement of my
invention; Figs. 9 and 10 shew separate parts of the base of the said frame
illustrated by Fig. 8; Fig. 11 shews an alternative method of constructing one
part of the said base; Fig. 12 illustrates another arrangement of my invention;
and Fig. 13 shews the sheet metal blank partly formed into the base of the frame
represented in Fig. 12.
The same letters of reference indicate the same or corresponding parts in all
the figures.

page_text: the same.
According to one arrangement of carrying out my invention (see Figs. 1, 2, 3
and 4) I make the body A of the axle pulley frame from an elongated sheet
metal blank the shape of which will readily be understood from an examination
of Fig. 2 and which is of the proper length to form the two sides a¹ a² and the
two ends as a of the body. This blank A is bent about centrally at the top a³
of the body and the halves a' a² of the blank are brought down parallel with each
other side by side so as to form the two sides a¹ a² of the body A provided with
the bearings as in which the axle c' of the pulley C turns; the ends of the blank
are bent round and meet together at a at the bottom of the body A. The body A
has two side projecting parts as a standing out at right angles therefrom to
form a flange for securing the body A to the base or front D of the frame as
hereinafter described. The front or base 1) is made of a sheet metal blank D
the shape of which will be understood from an examination of Fig. 4 and which
is of about the same length as the finished base but is about double the width of
At about the centre of the base there is pierced an elongated hole
corresponding with the shape and size of the body A through which the axle
pulley C protrudes and in each of the sides of the blank there is a recess
(marked respectively 'd d³) corresponding with one half of the body. The blank D
is bent longitudinally along two parallel sides at such a distance from the side
edges of the blank that when the body A is placed in position on the base and
the side parts 2 d³ are folded over they meet at about the centre line of the base
or front as shewn in Fig. 1 and thus the base is made of two thicknesses of
metal 1) and d² 3 which embrace between them the projecting flange parts as as
of the body. Each side a¹ a² of the body A is pierced with a hole a to form
the bearing for the axle c¹ of the axle pulley C and the metal is by preference
raised round the hole so as to form a hollow boss as on the outside of each side
of the body to constitute a bearing for the axle c¹ of the axle pulley C to work
in. Or as shewn in Fig. 5 the said bearings may be formed by flanged
bushes e¹ e² somewhat like eyelets raised from sheet metal and placed in the said
holes a of the body from the inner sides of the same the bosses of the axle
pulley C working against these flanges e³ of the bushes e e2 on the inside of the
body.
The sheet metal which forms the front or base of the frame may have a pro-
jecting part 8 at each end (see Figs. 6 and 7) to fold down over the ends and
keep the folded down parts d d in place.
Instead of forming the base or front of the frame as above described the base
or front of the frame may be formed of three separate parts (see Figs. 8,. 9
and 10) namely a parallel sided sheet metal blank D¹ which is somewhat wider
than the base of the frame and is of about the same length the sides d d of this
blank being closed over the edges of two shorter blanks F1 F2 (shewn separately
by Fig. 10) which are each made of about half the length of the base and are
slotted out at f¹ so as to slide in endwise and clip the body part A of the axle
pulley frame between them, and thus be secured together when the sides d² d³ of
the longer blank D¹ are closed over the edges as above described thus completing
the axle pulley frame as shewn in Fig. 8.
Or the base may be formed of two sheet metal blanks, that is a blank such
as represented by Fig. 9 and another blank F3 such as represented in Fig. 11
which is made of a corresponding size and shape to the blank D¹ except that it
is made narrower so as to fit within the sides d 3 of the blank D₁. These
blanks DF3 clip between them the body A the edge clips 3 of the blank D
being closed down over the edges of the blank F3 so as to secure the parts
together.
It will be evident that the base or front of the axle pulley may, without depart-
ing from the nature of my invention, be made in various other ways from sheet
metal so as to be secured to the said body A above described by parts of the 'base
being closed over the flange parts as a of the body A so as to embrace the said
flanged parts between the two thicknesses of metal of which the front of the base

page_text: of the frame is formed and thus secure the body and base together. I may for
instance make the base as represented in Figs. 12 and 13 where the said base is
made of a blank D2 which is about twice as long as the required base the end
portions being each slotted at fl so that when these are turned down
against the main portion 12 they will lie together and embrace the body A
between them. The parts are secured flat against the front D by the side
clips which are closed down upon them as represented by Fig. 12.
.
The methods of manufacture above described enable me if desired to make
the front D or 11 or 12 or base of the frame of sheet brass whilst the body A is
formed of sheet iron or sheet steel...
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is:-
1. An axle pulley frame having its body made from the sheet metal blank A
shaped and bent to form the two sides a a² the top a³ and bottom at of the body
with side projecting parts a 6 for attachment to the base substantially as set
forth.
2. An axle pulley frame having its body made from the sheet metal blank A
shaped and bent to form the two sides a a² top and bottom of the body
with side projecting parts as a for attachment to the base said sides having
raised hollow bosses as forming bearings for the pulley axle substantially as set
forth.
3. An axle pulley frame having its base made from a sheet metal blank D
about twice the width of the required base provided with side parts which
are folded down on to the base so as to embrace the body and secure the base
thereto substantially as herein before described and illustrated by Figs. 1 and 4
of the accompanying drawings.
4. An axle pulley frame having its base made from a sheet metal blank D
about twice the width of the required base provided with side parts which
are folded down on to the base so as to embrace the body and secure the base
thereto the said base being made with or without the projecting end parts a
folded down over the side portions substantially as herein before described
and illustrated by Figs. 6 and 7 of the accompanying drawings.
5. An axle pulley frame having its base made from three sheet metal
blanks D F F shaped and secured together and to the body in the manner sub-
stantially as herein before described and illustrated by Figs. 8, 9 and 10 of the
accompanying drawings.
6. An axle pulley frame having its base made from two sheet metal blanks 10¹³
shaped and secured together and to the body in the manner substantially as
herein before described with reference to Figs. 8, 9 and 11 of the accompanying
drawings.
7. An axle pulley frame having its base made from the sheet metal blank D³
having end projecting parts which when folded over embrace the body A
of the axle pulley and are secured to the base by side parts d³ ³ of the base so
as to secure the base to the body substantially as hereinbefore described and
illustrated by Figs. 12 and 13 of the accompanying drawings.
8. In an axle pulley frame the combination of the body A and base D con-
structed and fixed together in the manner substantially as herein before described
and illustrated by Figs. 1, 2, 3 and 4 of the accompanying drawings.
9. In an axle pulley frame the combination of the body A and base D con-
structed and fixed together in the manner substantially as hereinbefore described
with reference to Figs. 1, 2, 3, 4, 6 and 7 of the accompanying drawings.
10. In an axle pulley frame the combination of the body A and the base formed
of the parts D' F1 F2 all constructed and fixed together in the manner substan-
tially as herein before described and illustrated by Figs. 8, 9 and 10 of the accom-
panying drawings.

page_text: 11. In an axle pulley frame the combination of the body A and the base
formed of the parts 11 and F3 all constructed and secured together in the manner
substantially as herein before described and illustrated by Figs. 8, 9 and 11 of
the accompanying drawings.
12. In an axle pulley frame the combination of the body A and the base D²
constructed and secured together in the manner substantially as hereinbefore
described and illustrated by Figs. 12 and 13 of the accompanying drawings.
Dated the 21st day of June 1899.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.