Improvements in Brakes for Bicycles, Cycles, Motor Cars and the like.
Year: 1896

page_text: Date of Application, 30th Nov., 1896
Complete Specification Laft 02nd
1007
0010
1007
PROVISIONAL SPECIFICATION.
Improvements in Brakes for Bicycles, Cycles, Motor Cars and the like.
We, GEORGE RODWAY SWINHOE Physician & Surgeon of 21 Sheppard Street,
New Swindon, in the County of Wiltshire and CHARLES ALFRED BALLANCE Surgeon
of 106 Harley Street, Cavendish Square, London, W., do hereby declare the nature
of this invention to be as follows:-
The brake apparatus consists of a differential sleeve connected to the rod from
the usual brake handle, so that on the brake handle being moved, as is usual,
to apply the brake the sleeve receives motion, which by means of a flange in
the upper portion of sleeve is communicated to a spring or springs on a spindle
for exerting pressure on a plate or washer; the washer bearing on a fixed sleeve
on the spindle, forcing the spindle with its shoe towards the tyre. On the fixed
sleeve is pivoted two curved levers, one on either side, one end of each lever projects
beyond the shoulder of the fixed sleeve so that the plate or washer bears on these
ends. As the differential sleeve is forced down, its circumferential edge bears
on the lower portion of these levers, pressing them with their shoes against the
tyre. The action of the coiled spring on the washer of spindle has a tendency
to raise the levers against the circumferential edge of the differential sleeve; the
pressure exerted by the differential sleeve on the levers tends to straighten them,
and so raise the spindle against the spring equalizing the pressure on the surface
of the tyre, pressed on by the shoes on the levers and spindle.
On the release of the brake handle, the sleeve is drawn up automatically by
the spring in the usual manner; when the coiled spring in the differential sleeve
exerts its pressure on the washer which presses on the ends of the levers raising
them for bringing the shoes clear of each other and of the tyre.
The surface of the shoes may be covered with rubber or like material or may
have pivoted therein a roller or rollers which may also be covered with rubber
or like material.
The brake can by any suitable means he applied to the rear wheel of a Bicycle
or the like instead of as is usual on the front wheel.
The brake apparatus may be made of aluminium.
Dated this 20th dox of Nava 1000
GEORGE RODWAY SWINHOE.
CHARLES A. BALLANCE.
improvements in Brakes for Bicycles, Cycles, Motor Cars and the like.
GEORGE RODWAY SWINHOE Physician and Surgeon of 21 Sheppard Street, New
Swindon, in the County of Wilts and CHARLES ALFRED BALLANCE Surgeon
[Price 8d.]

page_text: of 106 Harley Street, Cavendish Square, London, W. 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 improved apparatus is shown in the accompanying drawing and is intended
to be applied to wheel tires.
Fig. 1 is a sectional elevation showing the brake when the shoes are applied to
the tire, Fig. 2 end view, of Fig. 1, but partly in section and partly in elevation,
Fig. 3 elevation shewing the brake released. Fig. 4 plan of Fig. 1, Fig. 5
elevation of brake shoe with rubber strip let in, instead of rollers, Fig. 6 front
view of Bicycle handle shewing apparatus attached.
We construct the apparatus preferably with a differential sleeve (A) of oval
shape in cross section, a flange (C) brazed, or secured in any known manner, in
the upper part of the sleeve, the sleeve (A) being open at the sides in its upper
portion for convenience in fixing the washer (B) on the spindle (D) after the
spindle has been passed up through the hole in the flange (C). The differential
sleeve is attached by the rod (J) to the usual brake handle (M). A circular or
oval sleeve, or washer or square or oblong piece of metal (G) is keyed, brazed
or forged on the spindle (D) so as to serve as a stop or bearing for the flanged
washer (F). The Hange on the washer (F) serves as a stop or bearing for the
spring (). The sleeve (G) also serves the purpose of securing a bearing pin (K)
on which the forked ends of 'the levers (E) are pivotted. To one end of
the rod (D) is secured a brake shoe (H) in which we have shown rollers (I)
pivotted therein. To the ends of the levers (EE) are pivotted brake
shoes (HH) in which we have also shown rollers (I I") pivotted therein.
We sometimes make the brake shoes with long ribbed or plain rubber strips (P)
dovetailed, or otherwise secured, in the brake shoe as shown in Fig. 5 instead
of the rollers as shewn in Figs. 1 to 4.
In some cases we find it desirable to pivot the brake shoes on the levers at a
point nearer the fulcrum (K) than is shewn in the drawings.
The apparatus is attached to the usual style of bracket as is now used on Bicycles.
It may also be used on the hind wheel or wheels and fixed in any known way.
We sometimes find it convenient to make the brake apparatus of aluminium.
The action of the apparatus is as follows; on the rod (J) being pressed down
by the usual brake handle (M) the apparatus is moved until the central shoe (H)
comes in contact with the tire; on pressure now being applied the flange (C) is
pressed onto the spring (F) for exerting greater pressure on the central shoe (H)
and giving a tilting pressure to the forked ends of the levers, this pressure is
counteracted upon the spring by the tilting action given to the outer part of
levers by the bearing of the edge of the differential sleeve; so that as the pressure
is increased to press the shoes in at the sides of the tire, the tire would tend to
bulge in its centre against the central shoe, this shoe being pressed on by. the
spiral spring through the rod (D).
On release of the brake handle (M) the sleeve is drawn up automatically
by the spring in the usual manner; the coiled spring then exerting its pressure
on the flanged washer which presses upon the ends of the levers raising them for
bringing the shoes clear of the tire.
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:
1. In Brake apparatus for Bicycles, Cycles, Motor Cars, and the like; the
hereinbefore described combination of parts so that pressure is equally distributed,
or thereabout, on the tire through the shoes in the manner set forth and shewn
in the accompanying drawing.

page_text: 2. The combination of parts substantially as described and shewn in the accom-
panying drawing, Figs. Nos. 1, to 4, and acting in the manner set forth.
1
10097
G. R. SWINHOE.
C. A. BALLANCE.