Improvements in Cycle Brakes.
Year: 1893

page_text: Date of Application, 7th Apr., 1893
Complete Specification Left, 6th Oct., 1893-Accepted, 11th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in Cycle Brakes.
I JAMES BEVERIDGE of No. 1 Bedford Street in the Parish of Barrow in
Furness in the County of Lancaster Engineer do hereby declare the nature of this
invention to be as follows:-
My invention consists of the arrangement of a lever or levers (attached to any
convenient part of a cycle) in combination with a pulley or pulleys so arranged
that the brake pulley may embrace the tyre. I prefer to fix the arrangement to a
bycicle in such a manner that the brake may be applied to the hind wheel, or in
the case of a trycicle I adapt a modification of the arrangement for applying the
brake to the driving wheel or wheels.
The use of the word cycle in this Specification is to be understood to mean any
of the various forms of bycicles or trycicles.
The action of the brake arrangement is as follows:-The brake lever (to which
is attached a pulley) moves upon a fulcrum and is fixed to the cycle in such a
manner that the foot end of the lever or levers is within easy reach of the foot and
the pulley at the other end of the lever or levers comes in contact with the tyre
when pressed upon with the foot, and retards the motion of the wheel.
The pulley on the lever is so arranged that it runs freely upon its axis, but when
pressure is applied to the lever the friction of the pulley tends to assist in braking
the wheel. This movement of the pulley avoids violent shocks, rupture, or injuries
to the tyres as the brake pulley revolves with the wheel until sufficient pressure has
been applied to bring it to rest. In some forms of cycles it may be desirable to
have the brake applied to the front wheel, it will only be necessary to use a
modification of the arrangement before described, the lever and brake pulley being
fixed in such a position as may be most convenient to the form of cycle to which it
is applied.
My invention may also be used as a hand brake by the use of a pulley and lever
or levers as described modified to suit the various forms of cycles.
Dated this 6th day of Anril 1893.
JAMES BEVERIDGE.
COMPLETE SPECIFICATION.
Improvements in Cycle Brakes.
1, JAMES BEVERIDGE of 1 Bedford Street Barrow in Furness in the County of
Lancaster 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 :-
The object of this invention is to construct a cycle brake which is specially adapted
for use with cushion and pneumatic tyres and which may be applied either by hand
or by foot, or by both.
The cycle brake which forms the subject of this invention consists of a rotatable
friction pulley wheel which may be shaped to fit the tyre with which it is to be
used, so that the brake may embrace the tyre when in action, said friction pulley
being carried by a brake lever fulcrummed on a convenient part of the cycle frame
and being itself provided with a fixed or secondary brake which retards its rotation.
The brake lever is extended and furnished with projections within easy reach of the
feet of the rider.
The accompanying drawings are furnished in illustration of
my invention.
Figs. 1 and 2 are respectively side and front elevations of part of a cycle with
my brake applied to the front wheel thereof;

page_text: Fig. 3 is a side elevation shewing the arrangement adopted when the brake is
applied to the hind wheel, and
Figs. 4 to 9 shew enlarged detail views.
The same letters of reference are used to denote the same or corresponding parts
in all the figures.
Referring to Figs. 1 and 2; A is the brake lever pivotted to the front fork
at B, and provided with a spring not shewn in the drawings which keeps the brake
wheel normally just clear of the wheel F. C is a yoke secured to, or formed in
one with the lower end of the brake lever A and carrying the brake wheel between
its cheeks. The said cheeks are continued downwards and are slightly widened out
so as to form extensions D which depend down for a convenient distance one on each
side of the front wheel (see Fig. 2) and are furnished with projections E within
easy reach of the feet of the rider. It will be seen therefore that the brake may
be brought down on to the front wheel F by hand or by foot or by hand and foot
combined.
In Fig. 3 the brake lever A is centred at B on an extension G of the crank axle
bracket. In this case the brake is applied by depressing the lever A the projections
for the feet being secured direct to the lever at a convenient distance from the crank
axle bracket.
Figs. 4 to 9 shew detail views of various forms of the brake wheel. Fig. 4 is
an end elevation one half in section, and Fig. 5 is a section on the line X Y of
Fig. 4. J is an annular wheel free to rotate on the two truncated cones or
conoids K which are placed with their bases against the opposite sides CC of the
yoke and are immoveably secured to said yoke by one or more bolts L. Fig. 6 shews
a modification wherein the cones or conoids K are formed in one with the
sides CC of the yoke. M is a washer of rubber, leather, or other material which
increases the friction on the interior of the annular wheel J. Fig. 7 is an end
elevation of Fig. 6. Fig. 8 shews another modification wherein the cones are
dispensed with and a cylindrical axle K' substituted. In this case the interior of
the annular wheel J is made cylindrical to fit the axle, and preferably a washer or
collar of india rubber, leather, or other compressible material M is placed on the
axle, to act as a drag or secondary brake on the annular wheel J. Fig. 9 is a
section on the line Y Z of Fig. 8. If desired the fixed axis on which the annular
wheel J rotates may be concave, convex, or of other shape suitable for offering the
internal friction required.
From the foregoing description it will be understood that when the brake is
applied to the cycle wheel, the frictional resistance will cause the annular brake
wheel to rotate over its cylindrical, conical, conoidal, or other shaped fixed axis
which latter by offering resistance retards the rotation of the annular brake wheel
and thus acts as a secondary brake. The rotation of the annular brake wheel
avoids violent shocks, rupture, or other injury to the tyre, as the brake wheel revolves
with the cycle wheel until sufficient pressure has been applied to bring the latter
to rest.
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 :-
A cycle brake consisting of an annular brake wheel rotating over a fixed axis
BO made as to offer frictional resistance to the rotation of the said brake wheel
whereby a secondary brake action is set up, said brake being carried by a lever,
or levers actuated by hand or foot, or by both, substantially as described and
illustrated in the accompanying drawings.
Dated this 6th day of October 1803
F. W. GOLBY,
36, Chancery Lane, W.C., Patent Agent for the Applicant.