Improvements in the Manufacture of Upright and other like Pulleys and in Tools to be Employed therefor.
Year: 1887

page_text: Improvements in the Manufacture of Upright and other like Pulleys
and in Tools to be Employed therefor.
1 PHINEHAS EDWARD AYTON the younger, of Stratford Road Sparkbrook,
Birmingham, in the County of Warwick, Brass Founder, do hereby declare the nature
of this invention to be as follows
:-
This invention, relates to the manufacture of what are commonly known, as upright
pulleys, consisting essentially of an upright carrying bracket, or brackets, the former
resembling somewhat in shape, an inverted letter U, while the latter resembles in form
the letter M.
My said invention consists, in making the said pulleys, or the carrying bracket
frames thereof, from tubing, by a drawing process or processes, conducted, with
suitably shaped tools, or dies.
Or instead of producing the said carrying brackets from tubing, they may be made
from sheet metal strips or skelps, passed through drawing through dies or shaping
tools as aforesaid.
In conducting the manufacture, from tubing, I pass the same through the eye of a
gathering in, and shaping die, or the eyes of a series of dies, of the section of the
bracket frame to be made, which consists, of an upright carrying framing, with closed
or open top, and parallel sides, between the inside faces of which, a pulley running
upon an axle, works.
The base of the framing is flanged outwardly into attachment parts, wherethrough
screws pass, in attaching the said pulley to an object.
Thus, in making a single pulley, I take a length of tubing, and draw the same
through a segmental die, with an eye of the shape of the pulley bracket, or pulley
carrying frame to be made.
The drawing through of the tube, gathers in the metal, like an upright bridge, with
the metal of the flanged base part, folded and flattened upon itself; so that the
attachment base part double the thickness as that of the other part.

page_text: In an open top pulley frame, the sides, as well as the base, may be made of a double
thickness of metal.
In making the pulley frame from sheet metal, instead of tubing, the same conditions
of production are observed, as in making from a tube.
A length of tubing, or a strip of metal drawn to the above section or sections, is or
are cut up transversely, into a series of pulley frames or brackets.
In making a double bracket, I proceed in the same manner with respect to the
making of a single frame, other than the upright part of the framing, is partially
divided off at its middle, by a hanging web or partition, wherethrough the middle
of the pulley pin passes; and within each of the divided off parts, independent
pulleys work.
This double pulley framing, thus consists, of upright sides, with a middle partition,
depending from the underside of the top of the framing, and with the partition part,
coming a little below the bearing pin as aforesaid. The metal of the partition part is
of double thickness, as the other part, so is the flanged base.
The die through which the metal is drawn, is made preferably in two parts, with
the front or entrance to the eye, made bell mouthed, and with the eye of the die itself,
made of the outside shape of a pulley frame.
To ensure the pins, around which the pulleys work, being truly fitted through the
sides of the framing, the opposite sides of the dies, through which the blank is drawn,
have points which score, upon the outsides of the pulley frame, lines, which indicate
the height and position, wherethrough the drillings are to be made, for the pulley
pins to pass through.
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1'
1007

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Upright and other like Pulleys,
and in Tools to be Employed therefor.
I, PHINEHAS EDWARD AYTON the younger of Stratford Road, Sparkbrook
Birmingham in the County of Warwick, Brass Founder, 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 the manufacture of what are commonly known as upright
pulleys, consisting ossentially of an upright carrying bracket, or brackets, the former
resembling somewhat in shape, an inverted letter U, while the latter resembles in form
the letter M.
My said invention consists in making the framings of the said pulleys, or the
carrying bracket frames thereof from tubing, by a drawing process or processes,
conducted with suitably shaped tools or dies.
Or instead of producing the said pulley framings from tubing, they may be made
from sheet metal strips or skelps, passed through drawing through dies, or shaping
tools, as aforesaid.
In conducting the manufacture from tubing, I pass the same through the eye of a
gathering in, and shaping die, or the eyes of a series of dies, of the section of the pulley
frame to be made, which consists of an upright carrying framing, with closed (or open)
top, and parallel sides, between the inside faces of which, a pulley running upon an
axle, works.
The base of the framing, is flanged outwardly into attachment parts, wherethrough
screws pass, in attaching the said pulley to an object.
Thus, in making a single pulley, I take a length of tubing, and draw the same
through a segmental die, with an eye of the shape of the pulley frame, or pulley
carrying frame to be made.
The drawing through of the tube, gathers in the metal, like an upright bridge, with
the metal of the flanged base part, folded and flattened upon itself; so that the attach-
ment baso part, is double the thickness as that of the other part.
In an open top pulley frame, the sides, as well as the base, may be made of a double
thickness of metal.
In making the pulley frame from sheet metal, instead of tubing, the same conditions
of production are observed as in making from a tube.
A length of tubing or a strip of metal drawn to the above section or sections, is
or are cut up transversely into a series of pulley frames or brackets.
In making a double bracket, I proceed in the same manner with respect to the
making of a single frame, other than the upright part of the framing, is partially
divided off at its middle, by a hanging web or partition, wherethrough the middle of
the pulley pin, passes; and within each of the divided off parts, independent pulleys,
work.
This double pulley framing, thus consists of upright sides, with a middle partition

page_text: depending from the underside of the top of the framing, and with the partition part,
coming a little below the hearing pin as aforesaid. The metal of the partition part,
is of double the thickness as the other part, so is the flanged base.
The die through which the metal is drawn, is made preferably in two parts, with the
front or entrance to the eye, made bell mouthed, and with the eye of the die itself,
made of the outside shape of a pulley frame.
To ensure the pins around which the pulleys work, being truly fitted through the
sides of the framing, the opposite sides of the dies, through which the blank is drawn,
have points which score, upon the outsides of the pulley frame, lines, which indicate
the height and position, wherethrough the drillings are to be made, for the pulley
pins to pass through.
Figure 1 of the accompanying drawing represents in front elevation, a single
upright pulley, constructed according to my invention. Figure 2 is a side elevation
of the same, of which figure 3 is a top side plan.
The pulley frame of the said pulley is drawn or shaped from closed or open jointed
tubing, preferably cylindrical.
a is the pulley framing, with an enclosed base b, having outwardly extending
flanges, at the two opposite sides of the frame, which are parallel one with the other,
and through which said flanges, screw holes pass, for the attachment of the pulley
frame, to any object as may be desired. c is a pulley, enclosed within the frame,
and turning upon, or with the axle d.
In making the said pulley, I take a length of tubing e, preferably cylindrical,
(see figure 4) and draw the same through a die or dies, whose eye is of the
outside shape of the pulley frame to be made. The drawing of the said tube through
the eye, is effected by providing the entrance to the die or dies, with leads or inclines,
starting from a cylindrical hole, which progressively terminates in the eye as aforesaid;
so that on a plain tubing being passed through the die, it is progressively gathered
in, and shaped to the pulley frame, with double thickness at the flanged sides of the
base, as desired.
Figure 5 represents a front elevation of the die, and figure 6 is a transverse section
on the dotted lines A B.
In figure 4, a is a length of plain tubing, while the other end a, b, b², represents a
drawn length of the outside shape of the pulley frame, of which figure 7 is a cross
section on the dotted lines CD. Thus a drawn sectional length is made, and then cut
transversely into pulley frames.
Figure 8 represents a double pulley frame, while figure 9 represents a like pulley
frame, made from a blank or length of sheet metal, turned up into a skelp or open-
jointed tubing, and then subsequently drawn through a like die, as figure 5, into a
length of the cross section figure 9, with the side boundary edges of the strip,
figure 10, presented to each other.
In making the said pulley frame figure 9, I take a length of sheet metal, of a
breadth sufficient to comprehend transversely the boundary edges of the frame, as
shown in the said figure 10.
The dies for the production of double pulleys, are preferred to be two or more in
number, so as to progressively draw the metal into shape, and with a hanging
divisional wall, of double the thickness of the outer walls.
The pulley frames, instead of being made with semi-circular closed tops, they may
be made with open tops; so that in this case, the sides of the frame, are of double
the thickness of the metal employed; and I wish it to be observed, that although I
have spoken of upright pulleys, yet my invention is applicable to the pulley frames of
side or hanging pulleys.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be perforined, I declare that what I
claim is
First A pulley frame, constructed and described as set forth in figures 1, 2, 3
and 8.

page_text: Secondly-Making the frames of upright and other pulleys, from tubing, as
described and set forth in figures 1, 2 and 3.
Thirdly-The improvements in the manufacture of upright and other pulleys, from
cross cuttings of sectional drawn lengths of metal, produced from tubing, passed
through the eye, or eyes of a die, or dies, of the outside cross section of a pulley
frame to be made, substantially as set forth.
Lastly Making pulley frames from a strip or length of sheet metal, substantially
as described and set forth in figures 9 and 10.
Dated this Fourteenth day of August 1888.