Rim Brake for Cycles, Motor Carriages, and the like.
Year: 1899

page_text: Date of Application, 18th July, 1899
Complete Specification Left, 3rd Oct., 1899-Accepted, 4th Nov., 1899.
PROVISIONAL SPECIFICATION.
Rim Brake for Cycles, Motor Carriages, and the like.
I, RICHARD MURKETT, 20, Wells Street, Gray's Inn Road, London, W.C., do
hereby declare the nature of this invention to be as follows:
Rim brake adaptable to all kinds of cycles and velocipedes consisting of:-a
lever a plunger and a crown clip.
The plunger, actuating a double jointed horse-shoe with two brake blocks
attached to grip the rim, and mounted on two pivoted clips fixed to the forks
sides, and brought to its original position by means of springs. The said brake
adaptable to both plunger, and lift up lever handles, also made adjustable to
suit all sizes of rims, tyres, and fittings.
Dated this 17th
of I.... 1000
I, RICHARD MURKETT, of 20, Wells Street, Gray's Inn Road, London, in the
County of Middlesex, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
-
This invention relates to an improved brake for cycles, motor carriages and
the like adapted to act on the rim of one of the wheels thereof, and it consists
essentially of a pair of levers pivotted directly or indirectly to the fork or frame
of the machine so as to partly encircle the rim and tyre of the wheel to be braked,
the lower ends of the said levers being provided with suitable blocks adapted to
engage the rim of the wheel, of links connecting the upper ends of the levers
with a connecting rod adapted to be operated by the usual hand lever fulcrated
to the handle bar.
In the accompanying drawing which illustrates some methods of carrying my
invention into practical effect:-
Figures 1 and 2 are views in front and side elevation respectively showing
my improved brake applied to the steering wheel of a cycle and adapted to be
operated by a downward movement of the connecting rod.
Figure 3 is a broken view in front elevation of the brake-also applied to the
front wheel of a cycle-adapted to be operated by an upward movement of the
connecting rod, and
Figures 4 and 5 are broken views in plan and side elevation respectively of a
modification arranged to act on the driving wheel of a bicycle.

page_text: Throughout the views similar parts are marked with like letters of reference.
Referring to Figures 1 and 2 of the drawings a pair of bent levers A, A, are
pivotted at a directly, or indirectly through clamp brackets B, to the members
of the front fork X of a bicycle, the lower ends of the said arms or levers being
provided with suitably shaped blocks A¹, A¹, adapted to engage the rim Z of
the wheel.
The upper ends of the arms or levers A, A, are connected to the lower end of
a rod C by means of links D the said rod being guided in a suitable bearing c
carried by the crown of the fork X, and connected at its upper end to the usual
brake lever fulcrated to the handle bar, the arrangement of the levers A, the
links D, and the rod C.being such that the depression of the rod C by means
of the hand lever forces the upper ends of the levers A, A, apart, whereby their
lower ends come together and bring the blocks A', carried by them into contact
with the rim of the wheel. Any suitable form of spring may be employed to
restore the levers to their normal position out of contact with the wheel rim..
When it is desired that the brake should be applied by an upward movement
of the rod C the links D, D, are arranged as shown by Figure 3.
As a modification the links D may be replaced by an angle piece E. having
slots e adapted to engage pins al carried by the upper ends of the levers A,
motion being imparted to the said angle piece either by a rod as before described
or by a flexible wire on the "Bowden" principle as illustrated in Figures 4 and 5.
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:-
The combination of parts herein described and illustrated by the accompanying
drawing forming an improved rim brake for cycles, motor carriages and the like.
Dated this 3rd day of October 1899
RICHARD MURKETT.