Improvements in or relating to Brake Apparatus for Bicycles and like Vehicles.
Year: 1896

page_text: Date of Application, 25th Aug., 1896
Complete Specification Left, 25th May, 1897-Accepted, 21st Aug., 1897
ISIONAL
Improvements in or relating to Brake Apparatus for Bicycles and
like Vehicles.
I, JOHN SMALLUY CAMPBELL, of 22 Rue Dumont d'Urville, Paris, France, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention has referenco to a construction of brake apparatus for bicycles and
like vehicles in which the brake proper is by partial rotation of one or both of the
handles of the handle bar operated through a flexible shafting located within the
said bar.
In one arrangement the connecting means comprises two wire spirals or coils
having their inner ends connected to a cam, crank or equivalent device located
within the handle bar at the central portion thereof and carried by a suitable bearing.
The outer ends of tho shafts are connected it may be through centrally arranged
lengths of tube, to the handles which are mounted to turn on the ends of the handle
bar and are suitably connected thereto, as for example through a kind of screw nut
or union, in such a way that they can be partly rotated, for putting on or taking
off the brake. The brake may be of any suitable kind, for example, a brake spoon,
shoe or equivalent and be connected to the cam or equivalent device by a rod or
other connection located within or without the steering tube to the upper end of
which the handle bar is fitted. The whole of the brake actuating mechanism,
excepting the handles, can be enclosed. If desired, one only of the handles may be
connected as described to the cam or equivalent device; usually, howevor, it will
be more convenient to connect up both handles.
Improvements in or relating to Brake Apparatus for Bicycles and
like Vehicles.
I, JOHN SMALLBY CAMPBELL, late of 22 Rue Damont d'Urville, Paris, France, but
now of 9 Grafton Street, Bond Street, in the County of London, 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:-
This invention has reference to a construction of brake apparatus for bicycles and
like vehicles in which the brake proper is by partial rotation of one or both of the

page_text: handles of the handle bar operated through flexible shafting located within the said
bar as I shall now proceed to explain with reforence to the accompanying drawings
in which Fig. 1 shows partly in section and partly in elevation, a portion of a handle
bar with flexible shafting located therein for-connecting the handles with tho
brake proper. Fig. 2 is a part vertical section of the steering pillar with brake
apparatus.
In this arrangement the flexible shafting or connecting means comprises two wire
spirals or coils 1, 1 having their inner ends 1 connected to a cam, crunk or
equivalent brake operating device located within the handle bar 2 at the central
portion thereof and carried by a suitable bearing. In the example shown the brake
operating device comprises a rod 3 that is mounted to partly rotate in a bearing 4
and to which is fixed one end of a crank or lever arm 5 the other end of which is
suitably connected to the brake. The outer end 1 of each flexible shaft is
connected, it may be through a centrally arranged length of tube 8, to the corre
sponding handle 9 which is mounted to turn on the adjacent end of the handle bar 2
and is connected thereto in such a way that it can be partly rotated for putting on
or taking off the brake. In the example shown, the handlo 9, or cach such handle
is secured betweon a collar 10 fast on tho baudlo bar 2 and a flange 11 on a bush 11
scrowed into the outer end of the handle bar, the arrangement boing such that the
handle is free to partly rotate but not to movo endways. To the outer end of the
handle is fixed a scrow cap or union 12 provided at its centre with a tubular bearing
12 for the tube 8 which is connected to the handle by a pin 18. This pin oxtends
through an are shaped slot 14 formed in the handle bar to permit of partial rotation
of the handle. The said handle may conveniently be provided with a sleevo 9 that
is held in place between a flange 9 on the haudlo 9 and the screw cap or union 12,
'and has its outer surface ribbed or otherwise adapted to afford a good gripping
surface. The brake may be of any suitable kind, for examplo a brake shoe 15, or
equivalent and be connected to the crank or lover arm 5 or equivalent brako operating
devico, by a rod 15 or other suitable connection which may, as shown, be located
within tho steering tube 16 to the upper end of which the handle bar 2 is fitted.
The whole of the brake actuating mechanism, excepting the haudles 9, 9* can thus
be euclosed. If required however the rod 15 or equivalent connection, may be
located outside the steering tube. If desired, one only of the handles may bo
connected as described to the cam or equivalent brake operating device.
As will be obvious with the arrangement described, tho brake cau be easily and a
quickly applied and taken off by partial rotation, in the proper direction, of the
handle or handles on the handle bar, this rotary movement being transmitted
through the flexible shafting to the crank or lever arm 5 and thence through the
rod 15 or equivalent to the brake device proper.
Having now particularly described and ascertained the nature of the said inven- 4
tion and in what manner the same is to bo performed I declare that what I
claim is:-
1. A brake apparatus. for bicycles and like vehicles in which the brake proper
is by partial rotation of one or both of the handles of the handle bar operated
through flexible shafting located within the said bar, substantially as herein 4
described.
2. My improved brako apparatus for bicycles and like vehicles, constructed,
arranged and operating substantially as described and shown.
Pated this 20th day of May 1897.
For the Applicant,
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patont Agent.