Year: 1896

page_text: We, JOHN DAVIDSON, of 272 Friern Road, East Dulwich, in the County of
Surrey, Clock Maker, and JOHN ROMBACH, of 2 Long Lane, in the City of London,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
Thie invention relates to locking devices for preventing the unauthorized use
of cycles.
According to our invention we provide a lock case having within it a spring-
controlled barrel or similar device on which is wound a chain, band or cord. One
end of the said chain or cord is attached to the barrel and the other end projects
through an opening in the case and is attached to an end piece too large to pass
through the said opening so that the chain cannot be completely retracted into
the case by the spring. The said end piece is also adapted to be locked to the
case by a spring catch or snap lock when inserted in a slit in the case. The case
is furnished with a clip or clips adjustable or otherwise whereby it can be
attached to a convenient part of the frame of the cycle.
The operation of the device is as follows, that is to say, the device having been
attached to a suitable part of the frame, the chain is drawn out and passed through
one of the wheels of the cycle between the spokes and the end piece is then inserted
in the slit before mentioned and thereby locked to the case. The spring barrel
always draws the chain tight. The cycle cannot be used again until the end piece
is unlocked by a suitable key for raising the catch and liberating the end piece
whereupon the chain can be withdrawn from the wheel.
Dated this 23rd day of October 1896
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicants.
We, JOHN DAVIDSON, of 272 Friern Road, East Dulwich, in the County of
Surrey, Clock-Maker, and JOHN ROMBACH, of 2 Long Lane, in the City of London,
Manufacturer, 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 locking devices for preventing the unauthorized use
of cycles.
According to the said invention a lock case is provided having within it a spring-
controlled barrel on which is wound a chain, band or cord. One end of the said
chain or cord is attached to the barrel and the other end projects through an
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page_text: (pening in the case and is attached to an end piece too large to pass through the
said opening so that the chain cannot be completely retracted into the case by
the spring. The said end piece is also adapted to be locked to the case by a spring
catch or snap lock when inserted in a slit in the case. The case is furnished with
a clip or clips adjustable or otherwise whereby it can be attached to a convenient
part of the frame of the cycle.
In order that the said invention may be clearly understood and readily carried
into effect we will proceed to describe the same by aid of the accompanying
drawings, in which
Figure 1 is a rear elevation of the lock as applied to the fork of the rear wheel
of a bicycle, portions only of the fork and of the wheel being shown and the locking
chain being engaged with the wheel.
Figure 2 is a front elevation showing the provision for adjusting the lock
supports.
Figure 3 is a view similar to Figure 1 but with the face plate of the lock case
removed to show the internal construction of the lock. i
Figure 4 is a plan view of the lock.
E
Like letters of reference denote corresponding parts in the several figures.
A is the lock case, B is a barrel mounted loosely on a pin B1 within the said
case and controlled by a spring B. C is a chain having one end attached to the
barrel and the other end projecting through an opening A¹ in the side of the case
and attached to an end piece D which is too large to pass through said opening.
The said piece D serves as a convenient piece for taking hold of when the chain is
to be drawn out, and it also serves to lock the chain as hereinafter described.
is a catch pivoted at E¹ and controlled by a spring E. Opposite the said catch
is a slit or opening A3 in the case through which opening the piece D is intro-
duced when it is desired to lock it to the catch, the said piece D being suitably
perforated at D¹ see Figure 3 to engage with the catch. E³ is a stop to prevent
the catch moving to a position where the piece D could not engage with it. It
will be seen that the end piece D becomes locked on being simply inserted in the
slit A. To unlock it again the catch must be operated by a key inserted in a
keyhole K in the case.
The case A is supported by clips F, F which clasp a suitable part of the frame
of the cycle, for instance the two branches G G of the fork of the back wheel and
which are secured by bolts F1, F¹ or otherwise. It is convenient to provide four
clips two for each branch of the fork, see Figure 4, the two pairs of clips being
connected together and to the case A by a bolt H projecting from the case. The
clips are slotted at F see Figure 2 to allow of their being adjusted to suit different
machines.
The operation of the device is as follows, that is to say, the device having been
attached to the fork G, the chain C is drawn out and passed through the wheel J
between the spokes, and the end piece D is then inserted in the slit or opening A
and thereby engaged with the catch E and locked to the case. The spring barrel
always draws the chain tight. The cycle cannot be used again until the chain
is unlocked which is effected by a suitable key inserted in the keyhole K and
turned to move the catch, whereupon the end piece D can be withdrawn and the
chain is then by the spring rewound on the barrel.
The said invention is applicable to any cycle whether it has two or more wheels,
the case A being attached to any suitable part of the frame, conveniently near
one of the wheels.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
1. A cycle lock comprising a case adapted to be secured to the cycle frame, a
spring-controlled barrel and spring catch within the case, and a chain adapted to
be passed through the wheel of the cycle, one end of the chain being connected

page_text: to the barrel aforesaid and the other end being constructed to engage with and be
locked by the spring catch when inserted through an opening in the case,
substantially as described.
2. The combination with the case of the adjustable means for securing it to the
cycle frame substantially as described.
3. A cycle lock constructed substantially as described with reference to the
drawings.
Did thin 10th day of July 1897
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicants.