Improvements in and connected with Brakes, more especially intended for Bicycles, Tricycles, and like Machines.
Year: 1892

page_text: Date of Application, 30th Jan., 1892
Complete Specification Left. 13th Oct., 1892-Accepted, 3rd Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in and connected with Brakes, more especially
intended for Bicycles, Tricycles, and like Machines.
I PIERRE CADUSSAUD of 1 Rue Marceau à Oullins (Rhône) in the Republic of
France do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved safety brake more especially applicable for
bicycles tricycles and like machines and to a device for locking the said brake in its
applied position.
:
The brake is arranged to skid on the back wheel of the machine as by that
means accidents caused by too abrupt braking on the front wheel are obviated.
By means of the locking device the brake may when applied be retained in the
applied position at the required pressure as long as may be desired.
A brake according to my invention may be constructed as follows..:
The brake proper is mounted in proximity to the back wheel and may be hung
from a collar fitted to the lower part of the saddle bar and be kept in its normal
position away from the wheel by means of a spring.
A rod connects the brake proper to one arm of a bell crank lever which may
consist of a triangular piece centered to a collar attached to the backbone of the.
machine the other arm being connected to a rod running up parallel with the head
of the machine.
1
This rod is provided with a friction roller which bears against the under side of
a guide-plate having a groove in it forming part of a circle through which the said
rod passes contact between the sides of the groove and the rod being formed by a
small friction roller which is held in position on the rod by a spring. The upper
part of the rod is held in a collar secured to the socket head of the machine.
The said guide plate partly encircles the socket head but is not connected thereto
and is supported by arms branching from an upright piece connected to the brake
lever which may be situated below the steering handles.
A collar with a lateral piece attached thereto is secured to the brake lever; the
said piece forming a guide for a rack to pass through and being provided with a
detent or catch for engaging in the said rack which is hung at its upper end to a
collar or the like secured to the steering handle and is fitted with a spring for
keeping the rack from engaging with the detent.
On applying the brake the guide plate and the rod passing therethrough are
depressed and the aforesaid bell-crank lever or triangular piece is thereby caused to
turn on its centre so as to cause the rod connected with the brake proper to apply
the brake shoe to the back wheel.
With this arrangement the brake can be applied in whichever direction the front
frame of the machine may be turned.
The locking of the brake is performed by the engagement of the aforesaid rack
with the catch or detent and when this is engaged the brake lever may be released
and the brake will be held on by the rack and detent. To release the brake the
lever is slightly raised so as to disengage the rack from the catch and then. by
releasing the lever the brake proper will under the influence of the spring as herein-
before described resume its normal position away from the wheel.
The improved brake may be applied to any class of bicycle or like machine and
may be modified to suit the various requirements of each particular class.
Dated this 30th day of January 1892.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in and connected with Brakes, more especially
intended for Bicycles, Tricycles, and like Machines.
1 PIERRE CADUSSAUD of 1 Rue Marceau à Oullins (Rhône) in the Republic of
France 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 :-
This invention relates to an improved or safety brake more especially applicable
for bicycles, tricycles and like machines and to a device for locking the said brake
in its applied position.
The brake is arranged to act on the back wheel of the machine as by that means
the speed can be checked more advantageously and accidents caused by too sudden
application of the brake on the front wheel are obviated.
By means of the locking device the brake may when applied be retained in the
applied position at the required pressure as long as may be desired.
I will now proceed to describe with reference to the accompanying drawings a
safety brake constructed according to my invention premising that I do not limit
myself to the precise details illustrated.
Figure 1 shews in side elevation a brake arranged according to my invention as
applied to a safety bicycle from which its analogous applications will also be
understood.
Figures 2, 3 and 4 shew in side elevation plan and front elevation respectively
enlarged views of part of the brake mechanism detached from the bicycle.
Figure 5 shews a locking arrangement working in combination with a safety
brake.
The arm G carrying the spoon is mounted in proximity to the back wheel of
the bicycle and may be hung from a collar K fitted to the lower part of the seat
tube or saddle bar and be kept in its normal position away from the wheel by
means of a spring H. A rod F connects the brake proper G to one arm of a bell
crank lever E which may consist of a triangular piece centered at a to a collar J
attached to the back bone of the machine the other arm being connected to a rod
or vertical bar B arranged parallel with the head of the machine. The rod or
bar B is provided with a friction roller D which bears against the underside of a
plate C having a groove or slot c in it forming part of a circle through which the
said bar passes, contact between the sides of the groove or slot and the rod being
formed by a small friction roller L held in position on the bar by a spring R which
also retains the roller D in contact with the plate C. The upper part of the
rod B is guided in a collar I (Figure 1) secured to the head of the machine.
с
The plate C partly encircles the head or socket but is not connected thereto and
is supported on the fork by arms A branching from a vertically sliding bar A
connected by suitable connections part of which is shewn at A" Figure 1 in the
drawing to the brake lever M (Figure 5) which may be situated in the usual
position below the handle bar. A collar N with a lateral piece N¹ attached
thereto is secured to the brake lever M the said piece forming a guide for a rack ()
to pass through and being provided with a pawl or catch a' for engaging in the
said rack which is pivotally connected at its upper end at o to a collar or the like P
secured to the handle bar and is fitted with a spring which tends to maintain
the rack out of contact with the pawl a¹.
In order to apply the brake, pressure is applied in the usual manner to the
handle M and is transmitted through the sliding bar A and plate C to the bar B
connected to the aforesaid bell-crank lever or triangular piece E. This lever is
caused to turn on its centre so as to cause the rod F connected with the brake
arm G to apply the brake spoon to the back wheel of the machine. With this

page_text: arrangement the brake can be applied in whichever direction the fork or steering-
wheel of the machine may be turned.
The locking of the brake is performed by pushing the rack so as to cause it
to engage with the catch or pawl a' and when this is engaged the rider may remove
his fingers from the brake handle M and the brake will be held on by the rack and
detent or pawl a¹. To release the brake the lever M is slightly raised so as to
disengage the rack O from the catch a¹ and then by releasing the lever M the
brake proper will under the influence of the spring H resume its normal position.
away from the wheel.
The improved brake may be applied to any class of bicycle or like machine and
may be modified to suit the various requirements of each particular class.
Having now particularly described and ascertained the nature of the said inven--
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A brake for cycles acting on the back wheel and in which the brake lever-
acts upon the spoon or brake proper through a circular slotted plate which moves
with the said lever and also partakes of the movements of the steering fork and
transmits motion to a sliding bar passing through the slot in the said plate and
enables the brake to be applied independently of the movements of the steering
handle substantially as hereinbefore described with reference to the accompanying
drawings.
2. In a brake especially applicable to safety bicycles a spoon acting upon the
back wheel and connected by a rod to a vertical bar provided with a roller and
passing through a circular slot in a plate directly connected to a brake lever
arranged underneath the steering handle all as and for the purpose hereinbefore
described with reference to the accompanying drawings.
3. A brake for ordinary, safety and other cycles or like machines arranged and
operating as hercin before described and claimed and provided with a locking device
consisting of a rack hinged to the handle bar and capable of engaging with a pawl
or catch attached to the brake lever so as to retain the latter in the required
position substantially as hereinbefore described with reference to the accompanying
drawings.
4. The combination and arrangement of parts constituting a safety brake
substantially as hereinbefore described and illustrated in the accompanying:
drawings.
Dated the 19th of 10na
J. H. JOHNSON & Co.,
Agents.