Year: 1887

page_text: Date of Application, 2nd Apr., 1887.
- Specification Accepted, 14th June, 1887.
We WILLIAM HAWKINS and WILLIAM FISHER trading as Hawkins and Company
of the Crown Foundry, Dudley Port Tipton, Iron Founders, and ALFRED ASHMORE
of 77 George Street West Smethwick, Fitter, all in the County of Stafford, 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 axle pulleys, principally for window sashes, although the
said pulleys are equally applicable for other purposes; and the object of our said
invention is to simplify the construction, and to reduce their cost of manufacture by
means hereinafter described.
Axle pulleys as ordinarily constructed, are composed essentially of four parts, a
base plate with standing up lugs upon its upper side, two side cheeks or plates, with
bearing holes about their middles, and a pulley with opposite trunnion axles.
Now our invention consists in making up the said pulleys in three parts, viz :-
a base plate, with standing up half bearings on its upper side, sides or side cheeks in
one, with the other half bearings, and the axle pulley.
In carrying out our invention, we proceed as follows.
We make the frame of the pulley, consisting of a base or attachment plate, and side
plates or cheeks (at right angles thereto) in two parts, divided at the middle of the
bearings, and extending obliquely downwards on two opposite sides, to the top side of
the base plate, and then along the base plate to the ends of the cheeks or sides, which
are made in one piece, and connected together, by a web or cross flange, at the outer
ends of the base.
In putting together the parts, the pulley is dropped into its lower half bearings,

page_text: and the upper part of the frame, with the other half bearings, is dropped upon the
lower or base part, and then riveted together.
The axle ends of the pulley wheel, may be hooded over, or they may be left exposed,
as may be desired. In the former case, the metal at the sides is swelled a little
outwardly, and the bearings formed like semi-circular pockets.
Figure 1 represents in vertical section an open sided axle pulley, made according
to our invention. Figure 2 shows in elevation the said pulley affixed in position,
within a portion of a window frame. Figure 3 is an end elevation, and figure 4 is a
cross section of the said axle pulley and frame. Figure 6 shows the parts of the
frame separated, and with the pulley wheel, indicated in dotted lines; while in
figure 7 the said parts are shown in elevation. Figure 8 is an underside view of the
top portion of the frame, and figure 9 is a top side view of the lower portion of the
frame, with the lower half bearings upon it.
The same letters of reference indicate corresponding parts in figures 1 to 9. both
inclusive.
a is the lower half or plate of the frame, with inclined sided standing up portions
or bearings a², a², directed upwardly from the top side of the plate. The tops of
these brackets constitute the lower bearings a³, while the sides form, when the upper
part 6 is in position as herein described, portions of the sides or cheeks of the frame.
The elevated bearing parts, are separated from each other, by a distance more than
the breadth of a pulley wheel.
The upper side cheeks, or frame part b, which is cast in a piece, consists of
sides 22, connected or combined together by flanges or webs 36³, as best seen in
figures 1 and 8, and by which flanges or connecting webs, the upper part is connected
to its lower part, by rivets c, passing through holes , a', in the respective lower and
upper parts aforesaid.
The upper part is gapped on its underside, corresponding to the projections u²,
and made so as to fit upon, or one within the other; and at the upper part of
the gapped counterpart 6 of the lower part a² aforesaid, is a second half bearing 5;
and on the two bearings and parts. being brought together, and riveted, with the
axle of the wheel din position, an axle pulley is thereby made as represented.
The rivets for securing the parts together are marked c.
Although we have shown that the upper part or segment of the frame, is divided
from the lower segment, in a horizontal direction through the niiddle of the
bearings, and in an oblique and horizontal direction through the frame, yet the
subdivision may be made out of a direct line, so that the junctions of the parts may
break joint, one with another, but we have found the form represented, answers every
well practice.
Figure 10 represents in elevation, a closed or hooded axle pulley, made according
to our invention. In this form of axle pulley, the axle ends of the wheels are covered
up, or concealed from view, by the said end lying and working as it were within
semicircular pocket half bearings, made or sunken within, the respective upper and
lower segmental parts of the frame.
Figure 11 shows a vertical section of the said hooded pulley, and figure 12 is an
elevation of the top segment. Figure 13 is a horizontal section showing the half
bearing, with covered up outer end, and figure 14 represents in horizontal section, the
lower segment, on the dotted lines A B figure 10.
a is the lower segment, with its closed in bearings a, a³, made or sunken in the
inside faces of the upright parts a² a². bis the upper segment, with its sides or side
cheeks and half bearings 66, and d is the pulley wheel.
Having now particularly described and ascertained the nature of our said invention,
and in what manner the same is to be performed, we declare that what we claim is :-
First Making pulley frames of the kind herein described, in two segments, or in
two parts, divided transversely across the bearings, or their bearings, or the bushed
holes wherein the axle of the wheel of the pulley works, so that one half bearing or

page_text: bearings, is upon one part or segment, and the other half bearing is upon the other
part, substantially as described and set forth in figures 1 to 9 both inclusive of the
accompanying drawing.
Secondly Making hooded or enclosed ended bearings in two parts, or in halves,
respectively carried by the segmental parts of the frame, substantially as described
and set forth in figures 10 to 14 both inclusive of the accompanying Drawing.
Thirdly Making pulley frames of axle pulleys, of two transversely divided parts
or segments, the one (the base) carrying upon its upper side, bearing uprights, while
the other and upper part, is gapped and shaped upon its underside, to the figure of the
top of the other part, and which said upper part, which constitutes essentially the
sides of the frame, are connected together by a web or flange at the outside ends of
the base, and which said parts or segments are connected together by riveting through
the flanges of the one, and the base of the other, substantially as described and
set forth.
n
1