Improvements in Brakes for Velocipedes.
Year: 1890

page_text: Date of Application, 9th Dec., 1890
Complete Specification Left, 30th Apr., 1891-Accepted, 30th May, 1891
PROVISIONAL SPECIFICATION.
Improvements in Brakes for Velocipedes.
I, CARLTON CUTHBERT COLLINGWOOD of 43 Londsdale Road Harborne,
near Birmingham in the County of Warwick of the Bengal Pilot Service
Calcutta do hereby declare the nature of my said invention to be as follows
My invention has for its object: improvements in brakes for velocipedes by which
I obviate the wear and tear of the rubber tire which results from the use of an
ordinary spoon brake and which is important especially in the case of cushion or
pneumatic tyres while at the same time its application is facilitated and its action
more certain.
a
My improvements which I will describe as applied to a safety bicycle consists of
a friction wheel or drum which is mounted on the hub preferably inside the fork on
the steering wheel and around which a steel band is passed. To the fork on that
side or other convenient part of the machine, I attach by means of a spring clip,
lever which is pivotted to the clip at the bottom end and has the one end of the
steel band attached to its pivot, the other end of the band being attached to the
lever some little distance above its pivot. The lever is carried up and bent over
at the top to form the foot rest on the one side of the machine and a spring is
provided, one end of which may be fixed in the clip on, the fork with the other end
pressing the rest against the fork with sufficient force to retain the rest in position
when the foot is resting upon it but as soon as it is desired to apply the brake the
foot is pressed forward against the rest thereby pressing its top end forward away
from the fork and thus by means of the one end of steel band being attached to the
lever the said steel band is drawn more or less tightly around the friction wheel or
drum in proportion to the amount of pressure which is brought to bear by the foot.
Of course I may have a friction wheel on both sides of the wheel and the said
friction wheel may be formed with a surface of any suitable metal or material. I
may attach the friction wheel and foot lever to any convenient part of the machine
to suit the particular shape of the machine.
Dated this 8th day of December 1890.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Brakes for Velocipedes.
I, CARLTON CUTHBERT COLLINGWOOD of 43 Lonsdale Road, Harborne,
near Birmingham in the County of Warwick, of the Bengal Pilot Service
Calcutta do hereby declare the nature of my said invention and in what manner the.
same is to be performed to be particularly described & ascertained in and by the
following statement:―
My invention has for its object improvements in brakes for velocipedes, by which
I obviate the wear and tear of the rubber tire which results from the use of an
ordinary spoon brake and which is important especially in the case of cushion or
pneumatic tires while at the same time its application is facilitated and its action
more certain.
My improvements, which I will describe as applied to a safety bicycle, consists of
a friction wheel or drum which is mounted on the hub preferably inside the
fork on the steering wheel and around which a steel band is passed. To the fork

page_text: on that side or other convenient part of the machine I attach a lever which may be
pivoted to the clip at the bottom end, and may have one end of steel band attached
to its pivot the other end of the band in that case being attached to the lever some
little distance above the pivot. The lever is carried up and bent over at the top
to form the foot rest on the one side of the machine & a spring is provided one end
of which may be fixed in the clip on the fork with the other end pressing the rest
against the fork with sufficient force to retain the rest in position when the foot is
resting upon it but as soon as it is desired to apply the brake, the foot'is' pressed
forward against the rest thereby pressing its top end forward away from the fork
and thus by means of the one end of the steel band being attached to the lever the
said steel band is drawn more or less tightly around the friction wheel or drum in
proportion to the amount of pressure which is brought to bear by the foot. Of
course I may have a friction wheel on both sides of the wheel and the said friction
wheel may be formed with a surface of any suitable metal or material.
I may attach the friction wheel and foot lever to any convenient part of the
machine to suit the particular shape of the machine and the position of the pivots
may be varied as described further on.
In order that my invention may be clearly understood & more easily carried into
practice I have appended hereunto two double sized sheets of drawings upon which
I have fully illustrated the nature of my said improvements.
Figure 1., is a general view of an ordinary safety bicycle with my improved brake
attached thereto.
Figure 2., is an enlarged section through the hub of the wheel shewing the brake
& fork in side elevation looking from the interior.
Figure 3., is an exterior side elevation of the fork and hub of the wheel shewing
the brake attached thereto.
Figure 4., is a sectional front elevation of the hub and fork with my improved
brake attached thereto.
Figure 5 is a view of the foot of the lever A.
Figure 6., is a similar view to Fig. 5 but looking at the reverse side.
Figure 7., is a view of the pin to which the adjustable end of the band is
attached.
Figure 8., is a view of the adjustable end of the band.
Figure 9., is a view shewing one mode of adjusting the band.
Figure 10., is a view of the clip for spring.
In carrying my invention into effect I pivot the lever A to the fork by the pin a
upon which the lever revolves, the lever being provided at the top with the arm a
bearing the foot rest a². The foot of the lever A is provided with the forked end at
to which the one end of the band B is attached by means of the pin a' which passes
through the forked end at and is provided with the square body a upon which the
square head a of the screw a fits. This screw passes through the plate 61 which
is secured to the band B and is provided with the nut 6 for adjusting the length of
the band. The other end of the band is attached by the pin a to the projecting
fork as which forms part of the lever A the pins a and a being arranged with
regard to the fulcrum pin a' so that upon the lever being pressed by the foot into
the position shewn by dotted lines in Figure 2 the band B is tightened around the
friction wheel E which is secured to the hub F of the wheel by any convenient
means. The arm a' is bent round the main fork H as shewn at h¹ so that the mere
weight of the foot upon the rest does not operate the brake but really assists to
keep it off as shewn in Figure 3 but immediately it is required to operate the brake
it is simply necessary to press the rest a' forward with the foot which tightens the
band B around the friction wheel or drum E and thereby forms a most efficient
brake to retard the progress of the machine which cannot very easily become out
of order and which is particularly easy of application. The brake is thrown
and kept out of operation when not required by the spring 2 which is fixed to the
fork H preferably by the clip h and which presses against the stud a" upon the
arm a¹ and thereby keeps it "off" in the position shewn by Figure 3.

page_text: The device may be applied to both sides of the wheel if so desired but I
generally find that one side is sufficient while the details may be considerably
altered without departing from the nature of my said invention as for instance I
may put the fulcrum pin at the bottom of the fork to which the front end of the
band would be attached while the other or near end of the band would be attached
above the fulcrum pin or I may mount a stiff quadrant piece upon the lever &
eccentric to the friction wheel so that when the pressure was brought to bear upon
the lever it would bring the quadrant into operation upon the friction wheel.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The improvements in brakes for velocipedes: substantially as and for the purpose
herein set forth and shewn upon the accompanying two sheets of drawings.
Dated this 29th day of April 1891.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.