Improvements in or connected with Bicycle Locks.
Year: 1899

page_text: Improvements in or connected with Bicycle Locks.
I, THEO FRACKAI, 7, Endsleigh Street, Tavistock Square, W.C., London, Artist
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in or connected with bicycle locks
the bicycle lock consisting of two steel bands (or other suitable material) a b
each fitted to the front fork blades, on one being attached the lock d and on
the other the locking bar E, which rests. in a groove F & is retained in an
upright position by means of a sliding cap G of steel (or other material necessary).
On the sleeve C is fixed a small spring H furnished with a pin i which fits into
the said sliding cap. When the cap is moved upwards the locking bar is released,
and can be swung round on the pivot K to catch into the lock, thereby making
it impossible for the wheel to revolve as the spokes on either side of the bar are
unable to pass it. This bar is released by means of a key and can then be swung
back to the upright position. The sliding cap is then moved downwards, presses
the locking bar into the groove the pin I catches in the hole of the cap and the
locking bar is then perfectly rigid.
I, THEO FRACKAI, of 7, Endsleigh Street. Tavistock Square, London, W.C.,
Artist, 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 improvements in or connected with bicycle locks,
and consists essentially of a pivotted locking bar, extending, when in use, from
one part of the fork to the other part of the fork, lying out of the way, along
one fork when not in use, and when in use passing between the spokes of the
front wheel at a point close under the rim of the wheel, which is a point almost
identical with any effort at the tyre of the wheel to turn it, and thus with good
mechanical advantage to resist such turning effort.
And in order that my invention may be the better understood I will now
proceed to describe the same, reference being had to the drawings annexed hereto
and to the letters and figures marked thereon.
Figure 1 is a side view, and
Figure 2a front view of a bicycle wheel and fork with the lock closed.

page_text: Figure 3 shows two views of the lock open and secured to one side of fork.
Figure 4 shows a modified form of attachment of idle locking bar to one side
of fork.
Two bands of steel or other suitable material a, b, are fitted to the front
fork f, one a carrying a lock d, (which may be a key lock or a letter lock)
on one fork blade, and the other 6 on the other fork blade, carrying a pivotted
locking bar e, which may either lie vertically along the fork blade, when not
in use, or may be swung round on the pivot k, so as to pass between two spokes
of the wheel and engage with the lock on the other fork blade, thereby
making it impossible for the wheel to revolve, as the spokes on either side of the
locking bar e are unable to pass it. The locking bar e is secured into, or released
from, the lock d by means of a key in the hands of the owner, or by the operation
of a letter lock, in a known manner.
When the locking bar is released and not required for use, it is turned vertically
along the length of the fork blade on which it is pivotted, and may be secured
there either by a spring detent h. as in Fig. 3, or by a sliding collar 7 as in
Fig. 4, the said sliding collar being secured by a spring pin m.
The whole arrangement is simple, cheap, and very effective for the purpose
required.
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
. 1st. A bicycle wheel lock consisting of a locking bar passing from blade to
blade of the front fork and between the spokes of the front wheel close to the
underside of the rim of the wheel.
:
2nd. A bicycle wheel lock consisting of a locking bar pivotted at one end on
a blade of the front fork, and adapted to engage with a lock situated upon the
other blade of the fork, and thus to be locked between any two spokes of the
front wheel, close to the underside of the rim, substantially as described.
3rd. In a bicycle wheel lock, a locking bar pivotted at one end on one blade
of the fork, a detent upon the said fork blade adapted to secure the locking
bar axially with the blade, when not in use and a lock upon the other fork blade
adapted to engage and lock the bar when placed horizontally between two spokes
of the wheel, substantially as described.
Doted this 10th 1.
T1
1000
FELL & JAMES.
1, Queen Victoria Street, London, E.C.,
Agents for the Applicant.