Year: 1896

page_text: I, CHARLES THOMAS BROCK SANGSTER, Works Manager to the Cycle Components
Manufacturing Company, Limited, of Bournbrook near the City of Birmingham,
do hereby declare the nature of this invention to be as follows:
This invention relates to brakes for cycles of the type commonly known as rim
brakes, and consists in an improved arrangement of the shoe and its carrier, and in
the means of operating and method of fitting the same.
In carrying out one form of my improvements, I take a brake shoe consisting of
a bridge or inverted U-shaped frame with the lower free ends turned inwards and
made to carry impingement blocks or pads which come upon the inner periphery
of a wheel rim, and with the said frame terminating the lower end of a rod passing
axially through the fork-crown and ball head, and coming out through the top of
the junction lug of the handle bars and being jointedly connected to a part of the
brake lever inwards of the extreme outer end which is fulcrumed to a detachable
or other bracket or attachment clip carried on the left hand side of the handle bar.
The upper part of the brake is located within the clearance between the forks
and the crown, with the said opposite sides coming in contact with the inner sides
of the fork members and being guided by loop clips or other expedients attached to
the said fork members or by the band clip attachment parts of the foot rests, which
have guide loops formed within inside parts of them wherethrough the brake frame
slides when the brake is put into and taken out of operation.
By using the band parts of foot rests to act as clips and guides for directing the
movement of the brake parts the number of parts to be fitted up are lessened.
The tyre of the wheel runs within the arched frame of the brake, whilst the shoe
terminations, which are alike unto turned-in hook ends take upon or contact against
the ribs or corrugations of the rim.
I prefer to make the frame and shoes of the brake from a single blank of sheet
metal, corrugated at parts and with its edges headed, ribbed or rolled over to give
strength thereto, whilst the shoe ends are formed alike unto inverted troughs or
have webbed sides so as to impart strength to the parts whereon the greatest strain
comes.
These said shoe ends and the adjacent parts of the frame sides may have the metal
doubled over to form boxed parts which prevent the accumulation of dirt in the
hollow parts of the shoes, whilst the opposed faces of the shoes next the rims may
be fitted with pads of rubber, leather, felt or other material.
Instead of employing pads as the impingements of the brake, runners or rollers
mav be employed.
The connection between the brake lever and the summit of the brake rod is made
by a brought-over cranked arm.
The act of drawing the end of the brake lever up to the handle bars raises the
jointed end, lifts the rod and draws the frame of the brake upwards and the brake
impingements against the inside periphery of the rim of the wheel with a pressure.

page_text: corresponding to the pull put upon the brake lever, and when the said lever is
released, the parts are returned to their normal positions by a spring encircling the
lower part of the brake rod and located between the top of the brake frame and the
underside of one of the plates of the fork crown or, equivalent part of the machine.
As a modification, instead of the frame or shoe being only drawn upwards to
apply the brake, it may also have an inward motion imparted to it. That is, the
arms or sides are made to incline towards each other so as to widen out at the lower
ends and pass between a pair of fixed, and separated pegs or equivalent guides, so
that when the brake is drawn up, the shoe ends of the sides besides approaching
each other vertically also approach each other laterally and thus grip the rim both.
vertically and horizontally.
I, CHARLES THOMAS BROCK SANGSTER, Works Manager to the Cycle Components
Manufacturing Company, Limited, of Bournbrook near the City of Birmingham,
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 brakes for cycles of the type commonly known as rim
brakes, and consists in an improved arrangement of the shoe and its carrier, and in
the means of operating and method of fitting the same.
Figure of the accompanying drawings represents in elevation the front part of
a safety bicycle, fitted or provided with a rim brake constructed, fitted and operated
according to my invention. The said view shows the brake "on," or applied
against the inner periphery of the wheel rim, which, together with the tyre, is
shown in section.
Figure 2 is a like view as Figure 1, but with the brake shown "off," or out of
braking contact with the wheel rim.
Figure 3 is a back elevation of Figure 2, showing more clearly the method of
mounting the brake lever.
Figure 4 is a transverse vertical section upon an enlarged scale, of the ball head
fork crown and front forks, together with their accessory parts, fitted or provided
with my improved brake.
Figure 5 is a front elevation of the brake shoe separately.
Figure 6 is a side elevation thereof, and Figure 7 a vertical section upon the
dotted liner, Figure 5.
Figure 8 is a side elevation of one of the brake blocks separately.
And Figure 9 an edge view of the same and Figure 10 a vertical section.
The same letters of reference indicate corresponding parts in the several figures
of the drawings.
In carrying out the form of my improvements shown in the said figures, I' take
a brake shoe a consisting of a bridge or inverted. U shaped frame a¹; with the lower
free ends ³ turned inwards into ears or clips carrying the impingement
blocks or pads b, which come upon the inner periphery c; of a wheel rim c. The
said frame a terminates the lower end'd' of a concealed brake rod d, passing axially
through the fork-crown e, and ball head f, and coming out through the top g', of

page_text: the junction lug g, of the handle bars y, surmounting the handle bar stem g, and
being jointedly connected at to a lug 4, of the brake lever h, inwards of the
extreme outer end 2, which is fulcrumed at to a detachable or other bracket or
attachment clip i, carried on the side g', of the handle bar g.
The frame part w, of the brake is located within the clearance between the front
fork sides e, and the crown e,, with the opposite sides a³, coming in contact with the
inner sides of the fork members and being guided thereon by turned over ears
partly embracing the back edges of the said fork sides, or the said sides of the
frame may pass under and be guided by the band clip attachment parts of the
foot rests, which have guide loops on set lack parts forined within inside parts of
then wherethrough the brake frame slides when the brake is put into and taken
out of operation.
The tyre 10 of the wheel runs within the arched frame of the brake, whilst the shoe
terminations or contacts b, which are alike unto turned-in hook ends, take upon or
contact against the ribs or corrugations on the inside of the rim.
I prefer to make the frame, shoe clips and guide cars of the brake from a single
blank of sheet metal, corrugated if required, at parts or its edges may be beaded,
ribbed or rolled over to give strength thereto whilst the shoe ends may have webbed
sides or he formed alike unto inverted troughs so as to impart strength to the parts.
whereon the greatest strain comes.
Instead of employing pads as the impingements of the brake, runners or rollers
may be used.
The connection between the brake lever and the summit of the brake rod may
either be made by the arrangement shown in the drawings, or by a brought-over
cranked arm formed upon or attached to the brake lever.
The act of drawing the end of the brake lever up to the handle bars raises the
jointed end, lifts the rod and draws the frame of the brake upwards, when the brake
blocks impinge against the inside periphery of the rim of the wheel with a pressure
corresponding to the pull put upon the brake lever, and when the said lever is released
the parts are returned to their normal positions by a spring j, encirling the lower
part of the brake rod, and located between an internal rest collar k in the steering
pillar and the shoulder d of the lower end d of the brake rod, although I may
employ a spring acting directly upon the brake lever. The brake rod is made
adjustable by being in two parts, and screwed one into the other.
As a modification, instead of the frame or shoe being only drawn upwards to
apply the brake it may also have an inward motion imparted to it. That is, the
arms or sides are made to incline away from each other so as to widen out at the
lower ends and pass hetween a pair of fixed and separated pegs or equivalent guides,
so that when the brake is drawn up, the shoe ends of the sides besides approaching
ach other vertically also approach each other laterally and thus grip the rim both
vertically and horizontally.
Having now particularly described and ascertained the nature of my said.
invention and in what manner the same is to be performed, I declare that what I
claim is:-
First: In cycle rim brakes, the improved arrangement of the brake shoes or
contact blocks and the carrier of the same, and in the means of operating and
method of fitting the same, substantially as described and set forth.
Secondly-In cycle rim brakes, making the carrier of the brake blocks in the
form of a stirrup shaped frame provided with integral guides sliding unon the fork
sides, substantially as described and set forth.
Thirdly:-In eyele rim brakes, making the brake block carrier in the form of a
stirrup shaped frame, the sides of which pass under the bands of the foot rest
attachment clips, which act as guides for the said carrier frame, substantially as
herein described.
Fourthly: The improvements in cycle brakes for operating upon the rim of

page_text: the front wheel, and in the arrangement and combination of the parts thereof and
means for operating the same, substantially as herein described and set forth.
Dated this 5th day of June 1897.
CHARLES THOMAS BROCK SANGSTER.
By Henry Skerrett,
24 Temple Row, Birmingham, Agent.