Improvements in Brakes for Cycles.
Year: 1893

page_text: Date of Application, 10th Oct., 1893
Complete Specification Left, 10th Aug., 1894-Accepted, 15th Sept., 1894
PROVISIONAL ST EUITTUATION.
Improvements in Brakes for Cycles.
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 of
brake for bicycles, tricycles, and the like, and which will be more efficient and
useful than the spoon and other brakes heretofore in use.
The improvements essentially consist in mounting a loosely rotating roller within
a carrying frame, and in giving the spindle of roller freedom to move upwards for
the roller to come up against a bearing and breaking surface when applied to
the tyre of a wheel. This is effected under one arrangement by forming the frame
of an inverted U or fork shape, and in fitting a transverse pin between the arms of
fork to adjustably move within slots in same. The outer bearing surface of roller
would preferably be of a double coned shape tapering outwards both ways from
the centre, and would be mounted by its central eye bearing on transverse pins.
Washers would be placed on transverse pins on each side of each arm of frame and
screwed nuts fitted outside the ends, and helical springs would be mounted round
the projecting arms between the washers and the inner bearing arm of frame. This
transverse inner bearing arm of frame would be formed with angled projections or
faces on its outer surface for the roller to act and break on. Thus when the roller
is brought into action on the surface of a pneumatic or other tyre in its rotating
action its carrying spindle will be gradually pushed up within the slotted arms
against the action of the springs until the surface of roller bears on the angled
surface of the transverse arm and is brought to rest to stop the machine.
Instead of the roller being of a concave shape it may be convex or of a
cylindrically flat shape, and the bearing surface on which it acts be formed of a
shape to suit this. The roller may be made of metal, wood, rubber, vulcanite or
other equivalent material, or be lined or faced with rubber or other elastic or
cushioning material, and the surface on which it acts may be of like material.
The frame of brake would be formed with a central eye or neck and attacking
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.
Dated Oth October 1893
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Brakes for Cycles.
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 in and by the following statement in writing, that is
to say :-
This invention has reference to and comprises a new or improved construction of
brakes for bicycles, tricycles, and the like, and which will be more efficient and
useful than the "spoon" and other brakes heretofore in use.

page_text: The improvements essentially consist in mounting a loosely rotating roller within
a carrying frame, and in giving the spindle of roller freedom to move upwards for
the roller to come up against a bearing and braking surface when applied to the tyre
of a wheel.
And in order that this said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, there is hereunto
appended an explanatory sheet of drawings in which Figure 1 represents a front
elevation, partly in section, aud Figure 2 an end view at right angles thereto, of our
improved brake. While Figure 3 represents a view corresponding to Figure 1
but broken away of a modified construction of our brake.
Referring to these drawings:-The improvements are carried into effect by
forming the frame a of an inverted U or fork shape, and in fitting a transverse pin b
between the arms a', a', of fork to adjustably move within the slots a² in same.
The outer bearing surface of roller c would preferably be of a double coned shape
widening outwards both ways from the centre, and would be mounted by its central
eye bearing on the transverse pin b. Washers ',, would be placed on the
transverse pin on each side of each arm a' of frame, and screwed nuts b³ fitted
outside the ends, and, as shown in Figures 1 and 2, helical springs d would be
mounted round the projecting arms a¹ between the washers or spindle 6 and the
inner bearing arm a of frame.
This transverse inner bearing arm a of frame would be formed with angled
projections or faces a³ on its outer surface for the roller c to act and brake on.
Thus when the roller c is brought into action on the surface of a pneumatic or
other tyre in its rotating action its carrying spindle 6 will be gradually pushed up
within the slots a² in the arms a' against the action of the springs d until the
surface of the roller c bears on the angled surface a³ of the transverse arm a and
is brought to rest to stop the machine.
In the arrangement shown in Figure 3 the spring d is shown as fitted within the
slot a' in arm a', being held in position by the side washers b¹.
Instead of the roller being of a concave shape it may be convex or of a
cylindrically flat shape, and the bearing surface on which it acts be formed of a
shape to suit this. The roller c may be made of metal, wood, rubber, vulcanite or
other equivalent material, or be lined or faced with rubber or other elastic or
cushioning material, and the surface on which it acts may be of like material.
The frame of brake would be formed with a central eye e 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.
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 the brakes of cycles with a roller mounted on a
spindle which has freedom to move upwards for the roller to come up against a
bearing and braking surface, substantially as herein described in reference to and
shown in the accompanying drawings.
Second. In brakes for cycles, the combination of a roller mounted on a spindle,
a slotted carrying frame, and helical or equivalent acting springs, 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.