Improvements in Brakes for Pneumatic and other Elastic Tyred Wheels of Cycles and other Vehicles.
Year: 1893

page_text: Date of Application, 20th Sept.. 1893
Complete Specification Left, 30th May, 1894-Accepted, 21st July, 1894
PROVISIONAL SPECIFICATION.
Improvements in Brakes for Pneumatic and other Elastic Tyred
Wheels of Cycles and other Vehicles.
I, JOHN BARRATT, of Lever Street, Wolverhampton in the County of Stafford,
Cycle Manufacturer, do hereby declare the nature of this invention to be as
follows :―
This invention relates to the type of brake for employment with pneumatic and
other elastic tyred wheels of cycles and other vehicles in which the bearing of the
brake against the tyre is on each side of the middle thereof only, and in which a
space is left between the bearing surfaces of the brake for the passage of mud
which may be carried round by the tyre, and in which the bearing pieces of the
brake are detachable from the stock so that they may be replaced when worn.
The object of the invention is to improve the method of fixing the bearing pieces
to the brake stock so as to facilitate their removal and replacement by fresh ones
when worn.
According to this invention, each bearing piece is formed with a key running
longitudinally along the back, and of a part which bears against the wheel tyre
and becomes consequently worn away after repeated applications of the brake.
The key is formed of a section which consists of a head and of a neck or narrower
portion by which the head is connected with the wearing portion of the bearing
piece. The brake stock is formed with a longitudinal sleeve or socket on each side
to receive the head of a key, and an opening is slotted longitudinally through the
bottom of each sleeve to allow of the passage of the neck joining the head of a key
with the wearing part of a bearing piece. Each sleeve is closed at its forward ehit
and is open at its hinder end, and the bearing pieces are fixed in the stock by
pushing their keys forward into and along the sleeves. When the bearing pieces
are worn out they are readily pushed back out of the stock and replaced with fresh
ones. The bearing pieces are preferably of india-rubber, or they may be of any
suitable material for the purpose. For additional security the hinder ends of the
sleeves may be closed by screw caps after the bearing pieces have been put in
place, or set-pins may be screwed in sideways, or the bearing pieces may be secured
in the sleeves by means of cement. The sleeves may be circular, oval, square or
other shape in section, the keys being of a corresponding shape.
Dated this 19th day of September 1893.
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicant.

page_text: Improvements in Brakes for Pneumatic and other Elastic Tyred
Wheels of Cycles and other Vehicles.
I, JOHN BARRATT of Lever Street Wolverhampton in the County of Stafford
Cycle Manufacturer do hereby declare the nature of the said 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 type of brake for employment with pneumatic and
other elastic tyred wheels of cycles or other vehicles in which the bearing of the
brake against the tyre is on each side of the middle thereof only and, in which a
space is left between the bearing surfaces of the brake for the passage of mud
which may be carried round by the tyre and in which the bearing pieces of the
brake are detachable from the stock so that they may be replaced when worn.
The object of the invention is to improve the method of fixing the bearing pieces
to the brake stock so as to facilitate their removal and replacement by fresh ones
when worn.
In order that my invention may be properly understood and readily carried into
effect will now proceed to describe the same aided by the accompanying drawings
in which
Figure 1. is a front view of a brake stock with detachable bearing pieces
constructed and arranged according to my invention and partly in section.
Figure 2. is a side view of the same partly in section.
Figure 3. is an underside view and
Figure 4 is also an underside view showing one bearing piece removed and the
other partly withdrawn.
Figures 5 and 6 show a front view and side view respectively of one of the
hearing pieces detached.
According to this invention each bearing piece is formed with a key a running
longitudinally along the back and of a part which bears against the wheel
tyre A; and becomes consequently worn away after repeated applications of the
brake. The key a' is formed of a section which consists of a head and of a neck
or narrow portion a³ by which the head is connected with the wearing portion of
the bearing piece a.
The brake stock B is formed with a longitudinal sleeve or socket on each side
to receive the head of the key a' and an opening is slotted longitudinally through
the bottom of each sleeve to allow of the passage of the neck as joining the head
of the key a with the wearing part a² of a bearing piece a.
Each sleeve may be closed at its forward end and open at its hinder end the
bearing pieces being fixed in the stock B by pushing their keys a' forward into
and along the sleeves b.
When the bearing pieces a are worn out they are readily pushed back out of the
stock B and replaced with fresh ones. For additional security the ends of the
sleeves may be closed by caps c after the bearing pieces a have been put in place.
or set pins may be screwed in sideways or they may be secured in the sleeves by
cement. The sleeves may be circular, (as shown in the accompanying drawings,)
oval or square in section and the keys of a corresponding shape.
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-
The construction of a brake stock having slotted sleeves formed therein for

page_text: the reception of detachable bearing pieces, such bearing pieces being provided with
a key for securing same in the sleeve substantially as herein shown and described
in the accompanying drawings.
JOHN BARRATT.