Improvements in Brakes for Cycles or other Road Vehicles.
Year: 1893

page_text: Date of Application, 11th Nov., 1893
Complete Specification Left, 10th Aug., 1894-Accepted, 22nd Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Brakes for Cycles or other Road Vehicles.
We, THE NEW HOWE MACHINE COMPANY LIMITED of Bridgeton, Glasgow,
Lanarkshire, and ALFRED MACDONALD, Manager to said Company do hereby
declare the nature of our invention to be as follows
:-
This invention has reference to and comprises a new or improved construction or
arrangement and combination of the parts and motions of a roller brake for cycles
and other road vehicles, and especially adapted for those having their wheels fitted
with pneumatic and rubber tyres; and whereby a simple and efficient braking
action will be obtained without "skidding" or injuring the tyre.
The improvements essentially consist in mounting two rollers on a spindle or
spindles, which shall act as a brake on the tyre of the cycle or vehicle wheel, and
which shall have a rotating motion combined with a longitudinal motion outwards
from each other against the action of helical or other springs on the spindle or
spindles until the outer ends of the rollers bear up against the arms of a forked or
other frame carrying the spindles.
In carrying these improvements into practice, under one arrangement as applied
to a cycle, the rollers would preferably be formed of conoidal shape, although they
may be made convex, concave or of other circumferential configuration, and would
be mounted on a spindle carried in the two projecting arms of a bow or forked
frame, and secured by screw nuts outside the arms and with washers on each side
of said arms.
The rollers would be formed hollow or with hollow bosses, and
helical or spiral springs, would be mounted on the spindle within each of these
rollers, the one end of spring bearing on inner flush end of roller and the other end
against the washer on inner side of forked arms.
When
The frame of brake would be formed with a central eye or neck and attaching
links for jointing it to the cycle frame, and to the usual vertical rod from whence it
would be connected through another rod or link to the ordinary hand spring lever
for being operated from the steering handle of cycle in the usual manner.
the brake is applied on tyre of wheel the rollers will rotate round and also slide on
spindle and fly outwards against the action of the springs until their outer surfaces
bear against the arms of carrying frame, when they would act on tyre with sliding
friction.
The rollers may be formed of metal, wood, vulcanite, rubber, or other suitable
material or have their outer acting surface formed of rubber or other elastic
material.
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W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Brakes for Cycles or other Road Vehicles.
We, THE NEW HOWE MACHINE COMPANY LIMITED, of Bridgeton Glasgow,
Lanarkshire and ALFRED MACDONALD Manager to said Company, do hereby
declare the nature of our invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement in writing that is to say :-
This invention has reference to and comprises a new or improved construction

page_text: or arrangement and combination of the parts and motions of a roller brake for
cycles and other road vehicles, and especially adapted for those having their
wheels fitted with pneumatic and rubber tyres and whereby a simple and efficient
braking action will be obtained without "skidding" or injuring the tyre.
The improvements essentially consist in mounting two rollers on a spindle or
spindles which shall act as a brake on the tyre of the cycle or vehicle wheel
and which shall have a rotating motion combined with a longitudinal motion
outwards from each other against the action of helical or other springs on the
spindle or spindles until the outer end of the rollers bear up against the arms
of a forked or other frame carrying the spindles.
And in order that this said invention and the manner of performing or carrying
the same into practice may be properly understood there is hereto appended an
explanatory sheet of drawings in which Figure 1 represents a front or end elevation
partly in section and Figure 2 a side elevation of a roller brake as constructed in
accordance with our improvements.
Referring to these drawings
In carrying these improvements into practice as applied to a cycle the rollers a
would preferably be formed of conoidal shape, although they may be made
convex, concave, or of other circumferential configuration and would be mounted
on a spindle carried in the two projecting arms c c of a bow or forked frame c
and secured by screw nuts outside the arms c and with washers on the
inner side of said arms c¹. The rollers a would be formed with hollow bosses at a¹
and helical or spiral springs d would be mounted on the spindle 6 within the
recess a¹ in each of these rollers a, the one end of spring bearing on inner end of
recess of roller a and the other end against the washer on inuer side of forked
arms c¹.
The frame c of the brake would be formed with a central eye c³ and neck c and
attaching links for jointing it to the cycle frame, and to the usual vertical rod from
whence it would be connected through another rod or link to the ordinary hand
spring lever for being operated from the steering handle of cycle in the usual
manner. When the brake is applied on the tyre of wheel the rollers a will rotate
round and also slide on spindle 6 and move outwards against the action of the
springs & until the recessed or cut away parts a² on their outer surfaces bear against
the arms c' of carrying frame c when they would act on tyre with sliding friction.
The rollers may be formed of metal wood, vulcanite, rubber, or other suitable
material or have their outer acting surface formed of rubber or other elastic
material.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
:-
First. The constructing of roller brakes for cycles or other road vehicles
substantially as herein described in reference to and by way of application shown
in the accompanying drawings.
Second. In brakes for cycles or other road vehicles the mounting of two rollers
on a spindle and which shall have a rotative combined with a longitudinal motion
outwards from each other against the action of a helical or equivalent spring on the
spindle until the outer end of the rollers bear up against the arms of a forked or
like frame, substantially as herein described in reference to and shown in the
accompanying drawings.
Dated the 9th day of August 1894.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.