Improvements in Brakes for Velocipedes.
Year: 1895

page_text: Date of Application, 17th June, 1895
Complete Specification Left, 16th Mar., 1896-Accepted, 2nd May, 1896
PROVISIONAL SPECIFICATION.
Improvements in Brakes for Velocipedes.
I ALFRED ISAAC FEAR of 40 Pevensey Road Eastbourne in the County of
Sussex Ironmonger do hereby declare the nature of this invention to he as
follows:-
The object of my invention is to provide for use with velocipedes especially
those which have pneumatic tyres an extremely efficient and convenient brake.
To carry out this object the chain wheel that is mounted on the crank axle of
rear-driving safety velocipedes and the like is formed with a felloe or periphery
broader than the radial arms of this wheel. On the hub or boss of this wheel
which likewise is broader than the arms thereof is loosely nounted an eccentric
or a cam or other similar appliance which may have one or two or more pro-
tuberances. A brake block made of metal wood or other suitable material it may
be faced with india rubber leather or the like is so mounted in suitable guides
or similar appliances on the radial arms of this wheel or on other arms or
otherwise that it can be pressed against the interral surface of the periphery of
this wheel when the eccentric or cam or the like is moved and partially rotated
it may be through another block similarly mounted and touching this eccentric
or cam or the like which two blocks could be connected by a bar or bars or the
brake block could be otherwise actuated by the eccentric or cain or the like and
the number of brake blocks so mounted corresponds with the number of pro-
tuberances on the eccentric or cam or the like. The internal surface of the
periphery of the wheel whereagaiust the brake block can be pressed to check the
revolution of such chain wheel and therefore of the driving wheel or wheels of
the velocipede can when desired be lined with wood india rubber leather or other
suitable material.
To operate the eccentric or cam or the like various ordinary appliances may be
used. For example an arm may be attached thereto in the proper position and the
pressure of the foot of the rider on the end of this arm would move or partially
rotate the eccentric or cam or the like and apply the brake. Again the ordinary
brake lever may be connected therewith by rods and bell cranks or similar devices
properly arranged and fitted therefor in such wise that the customary movement
by hand of this lever would move or partially rotate the eccentric or cam or the
like and apply the brake. Other customary appliances may similarly be used.
When the brake has been thus applied it can be taken off again by springs fitted it
may be to the brake block or to the eccentric or cam or the like or to the actuating
arm or rod or crank or lever thereof in any convenient manner or by any other
ordinary and suitable devices by or through which this brake block can be retired
from pressing against the internal surface of the periphery of the chain wheel.
When desired however this brake may be similarly fitted to another wheel
correspondingly mounted on the crank axle when the same effect obviously would
be produced.
Dated this 17th day of June 1905
HART & Co.,
186, Fleet Street, London, E.C., Agents.

page_text: I ALFRED ISAAC FEAR of 40 Pevensey Road Eastbourne in the County of
Sussex Ironmonger 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 :-
The object of this my invention is to provide an extremely convenient and
efficient brake for use with velocipedes of all descriptions and especially with those
that are fitted with pneumatic tyres wherewith it is frequently found that the
ordinary brakes are very harmful."
In order the more clearly to explain this my invention and in what manner the
same is to be performed I refer to the accompanying drawing wherein I have
shewn my brake as applied to and arranged for a rear-driving dwarf or safety
bicycle in one and perhaps the most suitable and appropriate manner and Figure 1
is an outer side elevation of the chain wheel bottom bracket and adjacent parts of
such bicycle Figure 2 is a transverse elevation of the same partly in section and
Figure 3 is an inner side elevation of the same also partly in section taken at a. b.
in Figure 2.
The chain wheel A is mounted on and secured to the axle B of the cranks C as
is customary and is formed with a broad felloe or periphery D broader than the
radial arms of such wheel A especially on the inner side thereof.
When it may be
desired so to do on the hub or boss of this wheel A which likewise would be
broader than the radial arms thereof or as is perhaps preferable and as is shewn
in the drawing on the bottom bracket E of the bicycle or otherwise concentrically
with such wheel A is mounted a loose cam or eccentric or other similar appliance F
which may have any desired number of enlargements or protuberances although as
a general rule I consider that the two enlargements or protuberances shewn in the
drawing on opposite sides of this cam F are amply sufficient and are the most
convenient and efficient. A brake block G of metal wood or other suitable
material is made of any appropriate size and shape and the outer edge or end
thereof that is to come in contact with the internal surface of the periphery D of
the wheel A can most conveniently be covered or faced with india rubber leather
or the like as shewn at G' while the internal surface of this periphery D where-
against this brake block G is to be pressed can when desired be correspondingly
and similarly covered or faced with india rubber leather or the like as shewn at D¹.
The brake block G can perhaps preferably be supported in position by an angled
arm or standard H secured radially on the bottom bracket E in which arm H can
be made a radial slot K wherethrough can pass and wherealong can slide a stud or
projection L on the brake block G which can be retained therein by a plate M
secured by a screw bolt or otherwise on the end of such stud L by which arrange-
ment the slot K acts as a guide for the brake block G and allows the same to move
radially therein or in other ordinary and convenient manner and by and through
other customary and suitable appliances this brake block can be so mounted in
guides or other devices that it can only be allowed to move radially away from and
towards the periphery of the chain wheel and the number of brake blocks provided
and so mounted corresponds or ought to correspond with the number. of enlarge-
ments or protuberances on the cam or eccentric or other similar appliance.
The brake block G is so operated and moved in the one direction by the cam F
and it is perhaps preferable that this should be done directly and immediately as is
shewn in the drawing wherein the inner edge or end of the brake block G rests
directly on and bears immediately against the outer edge or periphery of the cam F
being caused to press against the same it may perhaps preferably be by a coiled

page_text: spring N which may be fitted in the slot K and is in compression. Therefore.
when the cam F is in the position shewn in Figure 3 the spring N retires the brake
block G from the internal surface of the periphery D of the chain wheel A whereby
the same is free to revolve but when the cam F is moved into or near to the
position shewn in Figures 1 and 2 the brake block G against its spring N is forced
outwards radially until it presses hardly or otherwise against the internal surface.
of the periphery D of the chain wheel A whereby the revolution of the same is.
checked.
As is hereinbefore stated the two enlargements or protuberances on opposite-
sides of the cam F and therefore the two brake blocks G in similar and corresponding
positions as shewn in the drawing are amply sufficient and are the most convenient.
and efficient for by this arrangement as is indeed obvious no binding or cross strain:
is put upon the crank axle B in its bearings when this brake is applied although I
would have it clearly understood that I do not in any wise limit myself thereto for
I may also provide and use any other number of enlargements or protuberances
and brake blocks when I may so desire.
As also is herein before stated it is perhaps preferable that the brake block should
be operated and moved by the cam directly and immediately but when I may
desire so to do another similarly sliding or other block could be interposed which
two blocks could be connected together by a bar or bars or a rocking or other lever-
could be interposed one arm whereof could be actuated by the periphery of the cam.
while the other arm or it may be the same arm in a different position would be
connected with the brake block or other suitable and ordinary appliances may be-
used for this purpose and further that any other appropriate and customary devices
may be provided instead of the coiled spring hereinbefore described to retire the
brake block from the internal surface of the periphery of the chain wheel.
To operate the cam F many and various ordinary and suitable appliances and
devices may be provided and used as may be appropriate and convenient in each
particular case. For example an arm P may be secured in the proper position
on the cam F to the end whereof would be jointed a rod R which through a bell
crank or other lever mounted on the side of the head of the front fork of the
bicycle could be connected with the ordinary brake lever mounted on the handle
bar of the bicycle through the ordinary rod depending therefrom and thus the
customary movement by hand or otherwise of this brake lever would move or partially
rotate the cam F and either apply the brake or allow the same to be retired in
manner as is herein before described. Again-the rod R' might be directly jointed
in the proper position to the cam F and being similarly connected with the brake
lever would produce the same effect but perhaps in not quite such a powerful manner.
Again-instead of the rod R or R¹ a chain or rope or cord could be connected
to the end of the arm P or directly to the cam F which being led under a pulley or
the like mounted on the side of the head of the front fork of the bicycle could pass
up and be connected to the brake lever whereby also the cam F could be moved
or partially rotated in one direction and preferably in such wise as to apply the
brake and in this case a coiled or other spring S would be provided and would
be fitted in any usual and convenient manner to cause the cam F to move or
partially rotate in the other direction when desired and when such cam Fis
released and preferably in such wise as to allow the brake to be retired. Again―
an arm may be secured in the proper position on the cam F and the pressure
of the foot of the rider on the end of this arm could move or partially rotate
the cam. and preferably apply the brake in which case also a spring would be
needed to cause the cam to move or partially rotate in the opposite direction.
and allow the brake to be retired. In the same manner a spring could in all
cases be applied to the cam and whether or not it is needed to cause or assist
in causing the cam to move or partially rotate and preferably allow the brake
to be retired.
It is sufficiently obvious that this my brake hereinbefore described can in the.

page_text: same or in a similar manner be applied to and arranged for other wheels corre-
spondingly mounted it may be on the crank axles of bicycles or on the crank or other
axles or rotating parts of velocipedes of all descriptions and no further explanation
is or can be needed.
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 :
1. In a velocipede the combination with a rotating wheel having a broad felloe
or periphery of a loose cam mounted concentrically therewith a brake block or
brake blocks which can be pressed against the internal surface of the felloe or
periphery of the wheel by the cam and can be retired therefrom by a spring
or springs or otherwise and guides whereby the brake block or brake blocks are
only allowed to move radially means being provided to cause the cam to move
or partially rotate in both directions substantially as and for the purpose herein-
before described and declared.
2. In a velocipede a crank axle B a wheel A secured on such axle B and a broad
felloe or periphery D on such wheel A. in combination with a cam F loosely mounted
on the bottom bracket E of the velocipede arms H with radial slots K secured
on such bottom bracket E brake blocks G mounted in such radial slots K and
springs N fitted to press such brake blocks G on such cam F means being
provided to cause the cam F to move or partially rotate in both directions
on the bottom bracket E substantially as hereinbefore described and set forth.
3. The improvements in brakes for velocipedes substantially as hereinbefore
described and shewn in the accompanying drawing.
Dated this 16th day of March 1806
:
HART & Co.,
168, late 186, Fleet Street, London, E.C., Agents.