Improvements in Brakes for Velocipedes.
Year: 1891

page_text: Date of Application, 24th Sept., 1891
Complete Specification Left, 24th June, 1892-Accepted, 17th Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in Brakes for Velocipedes.
CHARLES CRITCHLOW, Old Lenton, Nottingham, Farmer, and Joun
WAKEFIELD, Mechanic, 151 Fern Villas Robin Hoods Chase, Nottingham do
hereby declare the nature of this invention to be as follows:-
This invention relates to brakes for use on bicycles, tricycles, and the like, and it
has for its object the improved construction and arrangement of such whereby the
brake lever &c. may be dispensed with.
In carrying out the invention a chain or number of wires (plaited) are fastened
to the top or other part of the brake spoon the chain or wires are arranged through
the tube of the front fork of the machine also through the stem and through one
side of the handle bar, so as to come out at or near the end of the handle bar tooth
wheels or pulleys are arranged at any sharp angles the chain or wire may have to
pass, these are intended to carry the wire or chain past without any undue friction.
For applying the brake a screw or bolt is arranged at or near the end of the handle
bar, at the end of screw or bolt a bracket is arranged carrying a tooth wheel or
pulley and to this the end of the wire is fastened, thus when screw or bolt is moved
the brake is applied. For taking the slack out of chain or wire, when the handle
bar is lowered, the tooth wheel or pulley is turned round by means of a key fitting
the end of the axle on which the pulley or tooth wheel is fastened the pulley or
tooth wheel is prevented turning back again by means of a nut on the end of the
axle, which when screwed up draws in the sides of the bracket, thus gripping the
pulley or tooth wheel, or a catch may be arranged to prevent it turning back. A
spring is arranged at a suitable part of the brake to keep it off when not required
and a second spring may be required to be fixed between the brake spoon and the
end of the chain or wire, so that the inequalities of the wheel may not stretch or
break the wire or chain.
This invention has three advantages it is lighter, neater, and cheaper than the
brakes generally used. It is specially intended for brakes where a pull up is
required, but it may also be used where a push is required in which case a short
lever is required on the brake spoon.
Dated this 23rd day of September 1891.
TAN
ת זזת”
JOHN WAKEFIELD.
CHARLES CRITCHLOW.
COMPLETE SPECIFICATION.
Improvements in Brakes for Velocipedes.
CHARLES CRITCHLOW Lenton Nottingham Farmer and JOHN WAKEFIELD,
22 Spencer Street Coventry, late of 151 Fern Villa, Robin Hood Chase,
Nottingham, Mechanic, 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 brakes for bicycles tricycles and the like. It has for
object the improved construction and arrangement of such whereby the brake lever
may be done away with.
In carrying out the invention a number of wires A plaited shown on Fig. 1 are
connected to a single wire B shown on Fig. 1 which is screwed into a piece of
tube C shown on Fig. 1 this tube is connected to the back end of the brake spoon D
shown on Fig. 3. The spoon is hinged near the middle E to the front fork F
ID 17

page_text: shown on Fig. 3. For keeping the brake off when not required a spring is arranged.
The wires A and wire B and the tube C are arranged inside the front fork Fas
shown on Fig. 1 and inside the stem G of the handle bar H. The top end of the
wires A are connected to what I have called a pulley I shown on Fig. 1 this pulley
has two speeds as shown on Fig. 2 the wires A are connected to the largest speed J.
This pulley is arranged inside the T peice K upon an axle L. It is put into
the T peice K through the hole M. If it be desirable the single wire B alone
may be used by being connected to the the pulley I by means of a screw N in this
case the pulley is recessed out so as not to bend the single wire when the brake is
applied. On the smallest speed of the pulley a second lot of wires plaited P
are connected to a single wire Q these are arranged inside the right hand side of
handle bar H as shown on Fig. 2. This single wire alone may be used if desireable
by being connected to the pulley by means of a screw R if the pulley be recessed
out so as not to bend the wire, thus it will be seen that by means of a two
speed pulley as described the wires A or the wire B are made to move quicker
than the wires P or the wire Q thus applying the brake very quick. For applying
the brake a screw S is arranged in a nut T in the end of the handle bar as shown
on Fig. 2, the nut is fastened in the end of the handle bar. A hole U is made
through the screw S which allows the end of the wire Q to be passed through the
.screw after which a uut and a lock nut V are put on the end of the wire thus a
connection is formed between the nuts V and the head W of the screw S. Thus it
will be seen when the screw S is turned round in one direction the front end X of
brake spoon D is pressed on to the rubber tyre Y of the wheel Z thus it prevents
the wheel turning round until the screw is turned in an opposite direction. This
method of applying the spoon brake is also applicable to the rim brake, or band
brake. For preventing the screw S from working too freely the end 1 of the
handle bar H is split and screwed taper and a nut 2 on the end closes the end onto
the plain part 3.
Advantages. Being applied with a screw it is continual. Being a pull motion it
is only one third the weight of any other brake made. Being so much conceiled it
is the neatest brake made.
Having now particularly described the nature of our said invention and in what
manner the same is to be performed we declare that what we claim is
First. A screw S with means as described for keeping same from working too
freely.
Second. A number of wires P plaited and connected to a single wire Qor the
single wire alone arranged as described in combination with the screw S and
working in union with same.
Third. What I have called a pulley I arranged as described in combination and
working in union with the wires P or the wire Q which are in further combination
and working in union the screw S.
Fourth. A number of wires A, or a single wire B in combination and working in
union with the pulley I which is in further combination and working in union with
the wires A or the wire B which is in further combination and working in union
"with the screw S.
Dated this 24th day of June 1892.
CHARLES CRITCHLOW and
JOHN WAKEFIELD.