Improvements in or relating to Locks for Bicycles, Tricycles, and the like.
Year: 1897

page_text: Date of Application, ist July, 1897
Complete Specification Left, 31st Mar., 1898-Accepted, 1st July, 1898.
Date of Application, ist July, 1097
Complete Specification Left, 31st Mar., 1898-Accepted, 1st July, 1898.
PROVISIONAL SPECIFICATION.
Improvements in or relating to Locks for Bicycles, Tricycles,
and the like.
A communication by ALOIS WOLF and DR. LUDWIG MESSEK, both of Graz, in the '
Empire of Austria, Restaurant Proprietor and Attorney respectively.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester,
both in the County of Lancaster, 118, New Street, Birmingham, in the County of
Warwick, and 322, High Holborn, in the County of Middlesex, Civil Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object an improved lock for the wheels of bicycles,
tricycles and the like, which is of the greatest simplicity and so constructed that
on the locking bar being released the side bar automatically assumes the position
which it is to maintain whilst the machine is being ridden, remaining in that
position without any further operation. This lock is also so arranged that it may
be applied to any existing machine.
In the accompanying drawings,
Figure 1 is a view in perspective of the lock as a whole as arranged on the
front wheel fork;
Figure 2 is a longitudinal section of the fastening bolt;
Figure 3 is a longitudinal section on the line x-x of Figure 2;
Figure 4 a cross section on the line y-y of Figure 2; and
Figure 5 a view in perspective of the pivot of the locking bolt with a spiral
spring arranged thereon.
a is a clamp or link capable of being drawn together by means of a screw b,
said clamp or link being placed round one arm of the front wheel fork A. This
link or clamp a has an opening c through which a pivot or pin d is passed and
attached to a plate e. À preferably spiral spring f is placed on the pin or
pivot d, which spring engages with one end f¹ in an opening f in the plate e
and in the link or clamp a, but rests with its other end f³ in an elongated slot g¹
of the fastening bolt g which is revoluble on the pivot d and encloses the spring
with its casing, so that neither dust nor dirt can render the spring ineffective.
A washer is placed over the pivot d, which latter is suitably rivetted over the
same. The fastening bolt g consists of two parts so that it may be suitably
adjusted to the width of the wheel fork. For this object one part 9* is provided
with a cylindrical bore in which the other cylindrical part g' is inserted, this
latter part having an eyelet k at one end. In order to allow of both parts being
suitably adjusted a screw m is arranged which slides in an elongated slot
and allows the part to be fixed firmly in the part 9*.
The spring tends to turn the bolt g always in the direction of the arrow p
so that when the machine is not in use this bolt lies along the fork in the manner
shown by dotted lines in Figure 1, whilst a stop o bearing on the upper part al
of the link or clamp a suitably limits the movement of said bolt.

page_text: On the other arm of the fork opposite the link or clamp
a any suitable
ordinary lock is fastened by means of a similar clamp a*, in the spring latch
of which the eyelet engages as soon as the bolt g is inserted, the pressure of
the spring being overcome by passing the fingers between the spokes of the
wheel, Figure 1. By this means the wheel is locked. When it is desired to
again make use of the machine, the latch of the spring lock is drawn back by
means of the key u, whereupon the bolt g is released and springs back into the
position shown in dotted lines in Figure 1.
Dated this 30th day of June 1907
Improvements in or relating to Locks for Bicycles, Tricycles,
and the like.
A communication to me from ALOIS WOLF, Restaurateur, and DR. LUDWIG MESSEK,
both of Graz, in the Empire of Austria.
I, WILLIAM PHILLIPS THOMPSON, of the Firm of W. P. Thompson and Co.,
Patent Agents, of 6, Lord Street, Liverpool, in the County of Lancashire, 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 follow-
ing statement supplied by Messrs. Wolf and Messek's agent with orders to file:
:—
The lock for cycles which forms the subject of this invention, is of the greatest
simplicity, and is so constructed that when the bar by which the wheel is locked
or prevented from revolving is released, it automatically falls back into, and remains
in, the position which it occupies whilst the cycle is in use.
The improved lock is so constructed that it can be used with any form of cycle.
In the accompanying drawing, which is in illustration of the invention,
Figure 1 is a perspective view of the entire wheel locking apparatus, arranged
upon the front fork of a bicycle;
Figure 2 is a longitudinal section through the locking bar;
Figure 3 a horizontal section on the line x-x, Figure 2;
Figure 4 a transverse section on the line y-y, Figure 2; and
Figure 5 a perspective view of the pin on which the locking bar turns, with
its helical spring in place.
a is a clip, or socket, which is fitted upon one arm of the front fork A of the
machine, and is tightened and held in its place by the screw b.
The clip a has an opening c through which the centre pin d passes, the inner
end of which is fixed to a small plate e.
Upon the centre pin d the helical spring f is fitted, one end of which f¹ is
inserted into a hole f in the plate e and clip a, whilst its other end f³ fits and lies
in the longitudinal groove g³ at the side of a recess 94 in the end of the locking
bar g, in which recess the centre pin d and the spring f fit, so that neither dust
nor dirt can get in and prevent the bar y from turning freely on the pin d.
Outside the bar g a washer h is placed, against which the end of the pin is
rivetted.
The locking bar g itself consists of two parts, so that the bar can be extended to
fit across any fork. For this purpose, one part g¹ of the bar has a cylindrical
hole i bored in its end, in which the other cylindrical part g², which is provided
with a suitable opening k at its end, fits.

page_text: In order to fix the two parts of the bar together in their proper position, a
screw m is passed through a longitudinal slot 1, and screwed into the part gº
so that the two parts are clamped firmly together.
The spring constantly tends to turn the locking bar upon its centre in the
direction of the arrow (Figure 1), so that when the lock is unlocked the bar lies
longitudinally against the fork arm, as shown in dotted lines, a projecting stop o
lying against the upper part a¹ of the clip a. Upon the other arm of the fork,
opposite the clip a, another clip a² of a similar kind is fixed which carries a
suitable lock r, the bolt of which engages in the opening k at the end of the locking
arm, when the latter is pressed back by hand against the pressure of the spring f,
between the spokes of the wheel as shown in Figure 1, and the cycle is then
securely locked.
When it is required to unlock it the spring bolt of the lock is withdrawn
by means of a key u, and the locking arm g being released, flies back into the
position shown in dotted lines in Figure 1.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
A cycle lock or fastening consisting of a locking bar 9 passing between the
spokes of the wheel, and formed of two parts g, g², one fitting and adjustable in
the other, one end of the bar turning upon a pin fixed to one of the arms of
the fork of the machine by means of a clip a and small plate e, and a spring f
being so arranged that when the arm is unlocked and released the spring holds
a projecting stop o upon it against one arm of the fork, whilst the locking of the
machine is effected by the other end of an arm g being pressed back until the
opening k at its end is retained by the bolt of a lock r attached to the opposite arm
of the fork by a clip a², the lock being opened when required by a key, sub-
stantially as described.
Dated this 31st day of March 1898