Improvements in or appertaining to Cycle and other Brakes.
Year: 1894

page_text: Date of Application, 1st June, 1894
Complete Specification Left, 1st Mar., 1895-Accepted, 6th Apr., 1895
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to Cycle and other Brakes.
We, CHARLES JOHN JACOBS, of the Golf Club, St. Helens, in the Isle of
Wight, Club Steward, and HENRY JAMES HAIR, of No. 22 George Street, Ryde,
also in the Isle of Wight, Engineer, do hereby declare the nature of this invention
to be as follows:-
:―
Our invention has reference to cycle and other brakes and has for its object to
so construct a brake that when arranged to act, for instance, on a cycle wheel, it
shall, instead of acting on the tyre or tread of the wheel, press equally on both
sides of the rim or felloe thereof, the power, though exerted through the medium
of a lever and the usual downward thrust of the brake rod, being arranged to
operate directly on the said parts of such rim.
According to our invention the brake rod of a cycle instead of terminating in
the usual
"
spoon is cut off short at a point after passing through a bracket
carried by the down-stem or crown head of the machine. To this bracket or to any
other convenient support is affixed a clipper spring or equivalent device formed
with two downwardly projecting arms the extremities of which are bent to a
suitable angle and carry brake blocks provided with a wearing surface of rubber,
cork, or other suitable material. To the end of the brake rod is attached a pressure
bar provided with two slots one on each side through which the downwardly
projecting arms of the clipper spring pass. The pressure bar is preferably curved
on each side from its point of attachment to the brake rod, its extremities serving
to limit the normally outward thrust of the arms of the clipper spring. The
extremities of the pressure bar may be provided with pads or friction rollers.
Upon operating its lever, the brake rod is thrust in a downward direction
carrying with it the pressure bar which in its movement operates to close the arms
of the clipper spring which thereby grip the wheel rim.
Our invention can be advantageously applied to the hub of a wheel, for instance,
by having a drum or disc thereon on which the arms of the clipper spring are
adapted to act.
Although described as applied to a cycle, the application of our invention is not
limited thereto, it being obvious that it is equally applicable as well to other
vehicle wheels as to other parts of machinery upon which a brake is required.
Dated this 1st day of June 1894.
A. F. SPOONER,
124, Chancery Lane, W.C., Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in or appertaining to Cycle and other Brakes.
We, CHARLES JOHN JACOBS, of the Golf Club, St. Helens, in the Isle of
Wight, Club Steward, and HENRY JAMES HAIR, of No. 22 George Street, Ryde,
also in the Isle of Wight, Engineer, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:―
Our invention has reference to cycle and other brakes and has for its object to

page_text: so construct a brake that it shall, instead of acting on the tread of the tyre, press
equally on its two sides or the two sides of the rim or felloe of the wheel, the
power, though exerted through the usual medium of a lever and resultant downward
thrust of a rod, being arranged to operate directly on the said parts of the tyre
or rim.
In the accompanying drawings, Figure 1 is a front view and Figure 2 a side
view showing our invention applied to the front wheel of a bicycle of usual
construction but it will be obvious that our invention may be applied to other parts
and other types of machines.or vehicles.
Our invention consists essentially of a rod N, operated by any suitable lever,
passing through a guide hole F in a bracket G which is secured by any suitable
means to the crown-head or down-stem of a velocipede or the framework of a
vehicle. The drawings show the attachment effected by a screw. H passing through
a slot J which admits of the adjustment of the height of the bracket and is an
advantage as will be seen, but when used on a velocipede it might be secured at
the bottom of the crown-head between the forks or in any case it might be held to
the framework by a band with tension-screws or otherwise. To this bracket is
affixed a clipper-spring K formed with two arms projecting downwardly or
towards the hub of the wheel, their extremities being bent to a suitable angle as
shown. These extremities carry blocks which may be solid or in the form of shoes
as shown at L into which wearing surfaces of rubber, cork or other suitable
material M is firmly inserted in any suitable manner. The said blocks or shoes
are securely fastened either at the ends of, or at right angles to, the arms k¹, k²; in
the former case they may be socketted and screwed on to the ends of the said arms
and in the latter case they may be formed with a sleeve and passed along and
secured upon the end parts of such arms which may be formed angular in cross-
section for that purpose. To one end of the rod N is attached a pressure-bar P
provided with two slots R through which the arms k₁ 2 of the clipper-spring K
pass. This pressure-bar may advantageously be curved on each side from its point
of attachment to the rod N its extremities p being turned over and serving to
limit the normally outward thrust of the clipper-spring arms. The said extremities
of the pressure bar may be provided with pads to prevent metallic contact with
the clipper-spring or with friction rollers.
.
In the drawings A, A are the front forks of a velocipede; B is the crown-head;
C the down-stem: D the rim of the wheel, and E its tyre, which may all be of the
usual or suitable construction.
Upon operating its lever, the rod N is thrust in a direction downward or against
the pressure of a spring such as S, carrying with it the pressure-bar P which in its
movement operates to close the arms ¹² of the clipper-spring, the blocks L of
which thereby grip the wheel rim or two sides of the tyre equally. When the
lever is released, the spring S operates to return the rod N, raising the pressure-bar
whereupon the arms k¹, k² of the clipper-spring move outward and lose their grip.
It will be seen that the strain, when the brake is applied, is borne by the
pressure-bar and by parts which in the case of a velocipede are attached to the
down-stem and crown-head of the machine which are its strongest parts and that
no pivoted levers or other parts are attached to the forks A which generally are
not sufficiently strong for that purpose.
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:-
1. In a brake apparatus, the combination, with a brake-rod and a clipper-spring
having arms terminating in separate brake-blocks, of a bracket attached to the
down-stem or crown-head of a velocipede or framework of a vehicle and serving
both as a holder for such clipper-spring and a guide for the brake-rod substantially
as set forth.
2.; In
a.
brake apparatus,. the combination of a clipper-spring having arms

page_text: terminating in separate brake-blocks carried by a bracket rigidly attached to the
crown-head or down-stem of a velocipede or framework of a vehicle, with means
for bringing such brake-blocks to bear equally upon the sides of the tyre or the
wheel rim.
3. The combination, in a brake apparatus, of a clipper-spring whose arms have a
normally outward thrust and terminate in separate brake-blocks, a bracket carrying
such clipper-spring rigidly attached to the vehicle, and a pressure-bar, provided with
slots such as R through which the clipper-spring arms pass, operated by a lever
and serving to bring such brake-blocks to bear equally upon the sides of the tyre
or the wheel rim.
4. In a brake apparatus, the combination, with a clipper-spring whose arms have
a normally outward thrust and terminate in separate brake-blocks, of a pressure-bar
provided with slots and terminating in turned-over ends, pads or rollers, for
limiting the outward thrust of the said clipper-spring arms.
5. The improved brake apparatus constructed substantially as herein set forth
and illustrated in the accompanying drawings.
Dated this 1st day of March 1895
A. F. SPOONER,
124, Chancery Lane, W.C., Agent for the Applicants.
A. F. SPOONER,
124, Chancery Lane, W.C., Agent for the Applicants.