Improved Automatic Brake for Perambulators, Bath Chairs, and other Vehicles.
Year: 1889

page_text: Date of Application, 16th Nov., 1889.
Complete Specification Left, 5th Aug., 1890-Accepted, 6th Sept., 1890
PROVISIONAL SPECIFICATION.
Improved Automatic Brake for Perambulators, Bath Chairs, and
other Vehicles.
JOHN REUBEN TOZELAND 110 Lefevre Road North Bow, E. Engineer do hereby
declare the nature of this invention to be as follows:-
My invention consists of the construction & combination of parts hereinafter
described for an "
Improved Automatic Brake for Perambulators, Bath Chairs &
other Vehicles" and is designed to reduce the possibility of accidents by such vehicles
running away. To assure this, a brake must be automatic in its action and I claim
for my invention a brake which is purely automatic and never failing in its action.
The motive power of the brake is obtained from the wheel of the vehicle.
The brake is attached to the spring of the vehicle or in such other position as may
best suit the vehicle in which case I provide a suitable attachment for the brake.
The brake consists of a friction wheel, which is in a line with one of the wheels of
vehicle and is carried by a frame working on a spindle, which spindle forms the
carriage of the brake. The friction wheel is grooved so as to better grip the wheel of
vehicle. Attached to the friction wheel is a chain or other suitable material, the free
end of which chain is attached to the top arm of a double armed lever, the fulcrum of
which is on the same spindle that carries the frame of friction wheel, the bottom arm
of the lever is shaped to form the brake block. To bring the friction wheel in contact
with the wheel of vehicle a spiral spring is provided, one end of which is attached to
the carriage of the brake and the other end is attached to the framework of friction
wheel. By this means it will be seen that the friction wheel is in contact with the
wheel of vehicle unless some means are provided for keeping it away during the time
that the vehicle is in motion, for this purpose, I have provided to be fixed in a.
suitable manner at the back of vehicle a suitable cranked lever handle, the bottom
arm of which is connected to the framework of friction wheel by a wire or other
suitable material. By a slight pressure of this cranked lever handle the friction
wheel is kept away from the wheel of vehicle and on releasing the cranked lover
handle the friction wheel of brake immediately touches the wheel of vehicle & by
this means applies the brake.
My automatic brake can be applied to more than one wheel of a vehicle by a
slight modification of the several parts, such parts being substantially the same as
before described.
Th 10th 1
CL1000
COMPLETE SPECIFICATION.
Improved Automatic Brake for Perambulators, Bath Chairs, and
other Vehicles.
JOHN REUBEN TOZELAND 110 Lefevre Road North Bow, E. Engineer, 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:-
My invention relates to an "Improved Automatic Brake for Perambulators, Bath
Chairs and other Vehicles," and the invention consists of the construction, combina-
tion and arrangement of the brake and lever handle for working same from handle
of perambulator or other vehicle as hereafter described :-
In order that iny invention may be more readily understood I have illustrated the
samme by the accompanying drawings forming part of this Specification.

page_text: Figure 1 shews an elevation of a perambulator with my brake attached to same.
Figure 2 shews an enlarged elevation of the brake only as seen from the side of
perambulator.
Figure 3 shews an enlarged elevation of the brake only as seen from the back of
perambulator.
The same letters of reference on each figure indicate the same parts.
The brake is constructed in the following manner. Attached to the spring of
vehicle is a metal carriage A with spindle formed on same and which said spindle
carries the several parts of brake. B is the friction wheel which is grooved to fit tyre
of vehicle and which revolves in a metal frame C having an hinged bearing on the
spindle of carriage A. The coil spring E keeps the friction wheel over against front
wheel of vehicle, one end of which spring is attached to frame C of friction wheel and
the other end is attached to the carriage A. Attached to the axle of friction wheel is
a chain F the other end of which chain is attached to the top arm of a double armed
lever G which lever has its fulcrum on the spindle attached to carriage A, the bottom
arm of lever G is the brake block G¹.
The frame C of friction wheel is connected by a wire or other suitable material to
the cranked lever handle H which has its fulcrum on a suitable metal clip & bolt
attached to handle of vehicle at J. It is from this handle H that the brake is
controlled.
Having now described the construction of the said brake, I will give a short
description of its action :-
By pressing down the cranked lever handle H as shewn at H' on Figure 1 the
friction wheel is pulled away from front wheel of vehicle and releases the brake.
The brake is set in action immediately the lever handle H is released, by the
spring E forcing the friction wheel against the front wheel of vehicle. The motion
of vehicle causes the friction wheel B to revolve and at same time winds up the
chain on friction wheel and draws brake block G tight against wheel of vehicle.
The brake now remains on until released by pressing the lever handle H down into
the position shewn by dotted lines on Figure 1 at H¹.
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) The combination and arrangement of the friction wheel and frame with the
coil spring. The double armed combined lever and brake block and the mode of
winding up the latter from the friction wheel, with the carriage for this portion of the
apparatus substantially as herein-shewn and described.
(2) The combination and arrangement of the lever handle attached to iron supports
of handle of vehicle for working the brake and the mode of connecting same. to the
friction wheel substantially as herein shewn and described.
(3) Such combination and arrangement of the several parts of my invention as
may he required to adapt my system to any perambulator, bath chair or any vehicle,
the several parts being substantially as herein shewn and described.
Dated this Fifth day of August 1890.