Improvements in Brakes suitable for Velocipedes, Motor-cars, and other Vehicles.
Year: 1897

page_text: Date of Application, 16th Sept., 1897
Complete Specification Left, 10th June, 1898-Accepted, 13th Aug.,
1898
PROVISIONAL SPECIFICATION.
Improvements in Brakes suitable for Velocipedes, Motor-cars,
and other Vehicles.
We, THOMAS HENRY NEWCOMB, of Addlestone Iron Works, Addlestone, in the
County of Surrey, Engineer, and THE NEWCOMB BRAKE SYNDICATE LIMITED, of
7, Watling Street, in the City of London, do hereby declare the nature of this
invention to be as follows:-
-
This invention relates to an improved construction of brake suitable for veloci-
pedes, motor cars and other vehicles, and it consists essentially of a disc adapted
to be mounted on the wheel or axle to which the braking power is to be applied,
the said disc carrying at its periphery a row of caged balls, that is to say, the balls
are mounted in a groove in the wheel rim in such a manner that they are free to
turn therein but cannot fall out or become disengaged therefrom. Mounted trans-
versely in the groove of this disc is a pin or roller forming a stop so that
the balls are prevented from travelling round the disc although they are free
to rotate in position thereon. Encircling this disc is a spilt strap one end of which
is fitted to any convenient part of the frame of the vehicle and the other end is
adapted to be operated to contract the diameter or the circumferential length of
the strap by means of a suitable operating lever.
The interior surface of this strap is grooved to adapt it to fit over the balls
carried by the disc and it may also if desired be provided with transverse de-
pressions arranged to receive and coincide with the balls carried by the disc.
It will be understood that the strap is of such a size that in its normal state it
is clear of the balls carried by the disc and that it is made of steel or other elastic
metal so that when it is released after it has been contracted to apply the braking
power it automatically resumes its normal state.
Datad this 16th dow of Con 100%
Improvements in Brakes suitable for Velocipedes, Motor-cars,
and other Vehicles.
We, THOMAS HENRY NEWCOMB, of Addlestone Iron Works, Addlestone, in the
County of Surrey, Engineer, and THE NEWCOMB BRAKE SYNDICATE LIMITED, of
7, Watling Street, in the City of London, do hereby declare the nature of this
ID 271

page_text: invention and in what manner the same is to be performed to be particularly de-
scribed and ascertained in and by the following statement:-
This invention relates to an improved construction of brake suitable for veloci-
pedes, motor cars and other vehicles, and it consists essentially of a disc adapted
to be mounted on the wheel or axle to which the braking power is to be applied,
the said disc carrying at its periphery a row of caged balls, that is to say, the balls
are mounted in a groove in. the disc in such a manner that they are free to
turn therein but cannot fall out or become, disengaged therefrom. Mounted trans-
versely in the groove of this disc is a pin or roller forming a stop so that
the balls are prevented from travelling round in the groove of the disc although
they are free to rotate in position therein. Encircling this disc is a split strap one
end of which is fixed to any convenient part of the frame of the vehicle, and the
other end is adapted to be operated to contract the diameter or -the circumferential
length of the strap by means of a suitable operating lever.
The interior surface of this strap is grooved to adapt it to fit over the balls
carried by the disc and it may also if desired be provided with transverse de-
pressions arranged to receive and coincide with the balls carried by the disc.
In the accompanying drawing which illustrates this invention as applied to a
cycle:-
Figure 1 is a view in side elevation.
Figure 2 is a view in plan.
Figure 3 is an end view of the disc carrying the balls, and
Figure 4 is a transverse section thereof with the brake strap.
Throughout the views similar parts are marked with like letters of reference.
Referring to the drawings, A designates the hub of the wheel, B the axle thereof
Cone member of the frame supporting the said axle, D the disc fixed to the
hub A and having a circumferential groove adapted to receive a series of balls E.
This groove is of such a shape that it embraces slightly more than one half of each
of the balls E so that they are caged therein, that is to say, they are free to move
in the groove but cannot fall out or become disengaged therefrom, and to enable
the said balls to be placed in position the groove is formed by means of a loose
plate fixed by means of small screws d d to the disc D. F designates the pin
or roller engaging with recesses in the sides of the groove in the disc D) so that it
forms a barrier across said groove to prevent the balls travelling round in the said
groove. G designates the split grooved strap which encircles the disc E and on
being contracted, as hereinafter described, engages with the balls E. One end of
this strap is fixed to the member C of the frame of the machine, which is con-
veniently effected by forming the end as a hook 9 which engages with a pin c
carried by the member of the frame, and the other end of the strap carries a
projection g with which one end of the operating lever H engages, the said lever
being pivotted to a bracket 2 carried by the member C of the frame. The lever H
is actuated from the handle bar or any other convenient part of the machine by
means of any suitable connection...
It will be understood that the strap is of such a size that in its normal state it
is clear of the balls carried by the disc and that it is made of steel or other elastic
metal so that when it is released after it has been contracted to apply the braking
power it automatically resumes its normal state.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we declare that what we
claim is:-
(1) The combination of parts herein specified and illustrated by the accompany-
ing drawing forming our improved brake.
(2) A brake for cycles, motor car and other vehicles consisting essentially of a
grooved disc fixed on the axle or wheel to be braked, of a series of balls located in the

page_text: said groove,
and of a split strap encircling the grooved disc and adapted when con-
tracted to engage with the balls carried thereby, as set forth.
(3) A brake for cycles, motor cars and other vehicles consisting essentially of a
grooved disc fixed to the axle or wheel to which the retarding power is to be applied,.
of a series of balls caged in the groove of the disc, of a transverse pin or roller
fixed across the said groove to prevent the balls travelling round therein, of a split
grooved strap encircling the disc and engaging the balls carried thereby, and of
means for contracting the said split strap, as set forth.
Dated this 10th day of June 1898.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicants.