Improvements in Rotating Brakes for Rubber Tyred Velocipedes and other Vehicles.
Year: 1895

page_text: Date of Application, 9th Dec., 1895
Complete Specification Left, 9th Sept., 1896-Accepted, 14th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Rotating Brakes for Rubber Tyred Velocipedes
and other Vehicles.
I, EDMUND MALCOLM TURNER of 15 Clifton Road, Brockley, London Engineer
do hereby declare the nature of this invention to be as follows
This invention is designed to supply an effective brake for pneumatic tyres.
(applicable also to ordinary or cushion tyres).
My improved brake is distinguished by a free running contact roller mounted on
a spindle which turns in accurate dust proof cone or other suitable bearings.
The contact roller is formed of wood, hard rubber or other suitable material and
is preferably not arched or curved to fit the sweep of the tyre but made of a double
cone or angular shape and of such a width as to bear on or near the sides of the tyre,
or if the tyre is no longer inflated the brake will act on the rim of the wheel.
A roller of less width or other pattern can be used if desired.
When the brake is applied the roller runs in contact with the periphery of the
wheel.
The brake action is applied to this roller by the usual lever handle or other
suitable means and a secondary brake action is applied to the reverse side of the
roller by means of a moveable block or pad attached to a rod also operated by
the lever handle or other suitable means.
The pressure is communicated to this block through a coiled spring so that it
can be applied to the roller to retard its motion gradually or as desired, and with
a sensitiveness of touch unattainable by a rigid pressure.
Another lighter spring acts as a releasing spring to lift the roller from the
tyre when the brake is out. of use.
The block or pad and roller can be operated by one spring only, instead of two
if desired.
Dated this 9th day of December 1895.
S. S. BROMHEAD,
97 Newgate Street, London, Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Rotating Brakes for Rubber Tyred Velocipedes
and other Vehicles.
I, EDMUND MALCOLM TURNER late of 15 Clifton Road, Brockley, London
Engineer, and now of 20, Breakspears Road, Brockley, London 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 is designed to supply an efficient brake for the wheels of cycles,
velocipedes, motor cars and other vehicles and is constructed to act upon pneumatic
or other tyres on the wheels of the same.

page_text: The brake is distinguished by a free running contact roller mounted on a spindle
which turns in accurate dust proof cone, or other suitable bearings.
The contact roller can be formed of wood, rubber or other suitable material;
and may be of any shape, but is preferably made of a double cone or angular
shape, and of such a width as to bear upon or near the sides of the tyre or upon
the rim of the wheel.
When the brake is applied, the roller runs in contact with the periphery of the
wheel, and is put in action by a lever-bandle or other suitable means.
5
To this roller a secondary brake action is applied when required by means of
a moveable brake block, roller or pad, preferably of rubber attached to a rod 1
operated by the same lever-handle or other suitable means.
In cycles and velocipedes a spring of any suitable shape and strength may be
used to release the roller from the tyre of the wheel.
Pressure is communicated from the lever handle or other suitable means to the
secondary brake through a spring so that it can be applied to the roller to retard
its motion gradually or as desired and with a sensitiveness of touch unattainable
by rigid pressure. One spring may be employed to act both upon the roller and
the secondary brake but preferably two are used as shown in Figs. 1 and 2.
The whole brake including the lever handle or other suitable means of working
same, can be attached to the velocipede or vehicle by clips, bolts and nuts, or
any suitable means.
I will now describe my invention with reference to the accompanying drawings, in
which :-
Fig. 1 shows a general side elevation of my improved cycle brake.
Fig. 2 shows a front elevation of same, with part in section to exhibit the
operation of the coiled springs.
Fig. 3 shows an enlarged detail front elevation of the brake roller and the
brake block, and shows the method of mounting the brake roller.
Fig. 4 shows diagramatically a system of levers for operating the brakes shown
in Figs. 5 and 6.
Figs. 5 and 6 show side elevations of two forms of my brake respectively fitted
with leaf and coiled springs, and specially adapted for use on the pneumatic or
other tyres of auto-motor cars and other vehicles.
Referring to Figs. 1, 2 and 3, a is the brake plunger rod (provided at its
upper end with a fork to receive the end of the usual brake lever rod), which as
seen in Fig. 2 really consists of an adjustable rod of the usual kind in a tube.
"
This tube is continued (preferably in increased diameter) sufficiently far to act
as a guide to an inner sliding tube a'. The tube a is continued down and
attached to the fork c*, carrying the roller c hereinafter described.
Through the tube a¹ is inserted a rod or tube a² the upper end of which is
clipped or screwed to the plunger rod a. To the lower end of rod or tube a² is
attached a metal shoe or clip a³ holding a pad or roller d.
When the plunger rod a is pressed down lightly the resistance of the weak
spring is overcome, and the brake roller c is pressed down upon the tyre of the
machine, and when more pressure is put upon a, the resistance of spring b, is also
overcome and by means of the telescopic arrangement formed by tubes a and a¹
the innermost rod or tube a² is pressed down and forces the brake pad, or roller d
on to the brake wheel c.
d is the brake pad, preferably made of rubber, and fitted with its metal shoe
or clip a³ which is fastened to the end of the rod or tube a².
c is the brake wheel, preferably made of hard wood, rubber or other similar
substance, and mounted upon spindle c¹ preferably in the manner shown in Fig. 3.
attached to tube a¹; e is
This spindle c¹ is carried in the forked bearing 2 which
a collar or clip with suitable fittings, attached to the brake of the machine.
Referring to Fig. 4 :-
fis the main brake rod operated from the driver's seat and centreing about the
fixed point ƒ¹, ƒ³ is a connecting rod pivotted to fat f*, and at the opposite end to the

page_text: upper end of rod g. This rod 9 centres on pivot g¹ and serves on a light pressure to
apply the brake roller c mounted on rod against the tyre of the wheel of the
vehicle.
Upon a heavy pressure being applied the spring (in this case spiral) is compressed
between the upper end of the rod h and rod g and thus applies the brake pad or
roller d on to the brake roller c.
In Figs. 5 and 6 the rod 9 carries the pad or roller d and brake roller C, the
latter is connected by a pivotted lever h which is controlled by spring k. The lever
in Fig. 6 is of a bent or bell crank shape controlled by a flat or leaf spring and the
lever in Fig. 5 being nearly straight and controlled by a coil or spiral spring.
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 I
claim is:
1. In a brake for velocipedes or vehicles the use of a free running primary roller
acting upon the tyre of the wheel of the velocipede or vehicle, and working in
conjunction with an adjustable secondary brake roller, block, or pad, controlling
said primary roller and thus constituting a double brake as herein described and set
forth.
2. In a brake for velocipedes or vehicles the use of an adjustable brake block,
roller or pad for the purpose of retarding the action of a free running roller brake,
as herein described and set forth.
Deted this 0th dore' of Santam 100
S. S. BROMHEAD,
97, Newgate Street, London, Patent Agent.