An Improved Cycle Brake and Lock.
Year: 1897

page_text: An Improved Cycle Brake and Lock.
I, ALBERT FRANK, of Sendlinger Oberfeld 39, Munich, in the Empire of
Germany, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a cycle brake which whilst having the attributes of the
brake generally in use is so arranged that it will serve to lock the wheel on which
it acts permanently if desired and so render cycle unrideable..
The brake block which acts on the tyre is so separated from the remaining con-
struction that it can be pressed on to or released from the tyre independently of
the use of the usual hand lever.
To effect this the brake block is attached to a short spindle provided with a
steep screw thread and can be screwed up and down by means of a detachable key,
in a socket attached to and resting on a pressure plate, the pressure plate being
fixed to the ordinary brake rod, so that the brake block can be screwed down
tightly on to the tyre and in this position effectually locking the wheel so that the
cycle cannot be ridden.
The attachment of the brake block to the spindle is such as to allow the latter
to revolve without altering the lateral position of the brake block which is however
kept in position and guided by means of two pins attached to it & working in two
respective tubes attached to the aforesaid pressure plate and in like manner and on
either side of the socket before described.
When the brake block is screwed down by means of the key so as to effectually
lock the wheel, the position of the spindle in the socket is such that on removing
the key the brake block can only be released from the tyre by means of the said
key or its equivalent.
The brake can be applied in the usual manner by means of the hand lever,
attached to handle bars and the brake rod acting on the pressure plate and
pressing brake block on to the tyre..
I, ALBERT FRANK, of 39, Sendlinger-Oberfeld, Munich, Germany, Manufacturer,
do hereby declare the nature of this invention, and in what manner the same is
$5 to be performed to be particularly described and ascertained in and by the follow-
ing statement:-
The cycle brake shown in annexed drawing is constructed (while retaining the

page_text: usual shape) in such a way that it can be used at the same time as a safety locking
device. .
The shoe of the brake e is separated from the rest of the mechanism to be capable
of being moved independently. It is secured by means of a rivet m, to a small
pin a which, being furnished with a high pitched-worm b, can be raised or lowered
by a key f, in a socket supported by the pressure plate g. The shoe can thus be
pressed on the wheel-tire rendering the latter immovable. (Fig 2).
The rectilinear movement of the shoe is secured by small pins & which move in
tubes i.
When the shoe is applied on the wheel-tire, the head c for receiving the key,
which can be of any form of section, is forced into the socket h so that if we will
bring the brake-shoe back to its ordinary position, a special key f is required, the
socket of which is of a shape corresponding with that of the pin or head c. :
This arrangement can be used as an ordinary brake, that is to say, that by
pressure of the rod r which is controlled by the springs said brake can be brought
in braking position.
The key can be detached and the head thereof can, of course, be of any desired
form.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is :-
A cycle brake serving at the same time as safety locking device distinguished
by a brake-shoe e g in two parts, of which the lower part e is guided on one side
by one or several pins d in the sockets i, and on the other side, by a screw a b fur-
nished with a head for the key, said head being placed in a nut h of the upper part,
substantially as described and for the purpose set forth.
Dated this 28th day of March 1898.
L. DUVINAGE,
Agent for Applicant,