Improvements in Locking Devices for Cycles.
Year: 1893

page_text: Date of Application, 20th Feb., 1893
Complete Specification Left, 10th Nov., 1893-Accepted, 16th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Locking Devices for Cycles.
I ENOCH EVANS, of 45 Bath Street, in the City of Birmingham, Manufacturer
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in locking devices used for preventing
the unlawful removal of cycles and consists as follows
66
This my invention may by a little modification and adaptation be applied to
cycles of different forms and having brake gear of varying design, but I will for
description sake, assume its application to what is now so well known as an ordinary
safety, in which the brake lever is connected to the upper end of a sliding rod or
piston" as it is termed, which latter passes downward through the lamp bracket
to the tubular rod (in which it is adjusted) and at whose lower end is connected the
brake. It is upon this piston and at a position below the bracket, that this my
improved device is carried; that is, I provide a lock body having in it a hole
through which the piston is passed, and upon which latter it may be adjusted and
secured in any desired position by means of a set pin. Upon the one side of this
body is carried an eccentric or cam lever, which is provided with suitable stop
arrangement by which the stroke or motion of the lever is limited, so that it shall
be distinctly felt by the operator when the cam is in the position to be locked.
Through the lock body is a further hole, which is made to receive a locking pin.
The inner end of this pin is screw-threaded, whilst its outer end is provided with a
square, (or other suitable shape) by which it may be worked by a key. The hole
in the body is preferably made so that the outer (key) end of the pin is also
recessed therein. A suitable handy key is now provided by which the said pin can
be screwed inwards, so that its inner end may project beyond the body into a hole
or recess formed in the lever at such a point opposite thereto when in its locked
position; or such screw may be withdrawn in order to unlock it.
Its action is therefore somewhat thus :-The device is firmly secured to the rod
or piston just below the fixed lamp bracket, so that when the cam lever is turned
downward or unlocked the brake may be used as ordinarily; but upon lifting the
lever the cam presses beneath and against the underside of the bracket, and so
forces the brake firmly upon the wheel and thereby preventing its rotation. The
hole in the cam lever is now opposite the locking screw, and by means of the key
this may now be quickly screwed forward thereinto, and the said lever effectually
locked. By unscrewing the said screw pin, the cam lever is again free to be turned
down and the brake at liberty for use.
It may in some cases be more convenient to attach this my improved device upon
some other rod than the one described, but which nevertheless has communication
with the brake or with the wheel.
Dated this 18th day of February 1893.
CHARLES T. POWELL,
Applicant's Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Locking Devices for Cycles.
I, ENOCH EVANS, of 45 Bath Street, in the City of Birmingham, 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 improvements in locking devices used for preventing
the unlawful removal of cycles, and consists as follows:-
:—
This my invention may by a little modification and adaptation be applied to
cycles of different forms, and having brake gear of varying design, but I will for
description's sake, assume its application to what is now so well known as an
ordinary safety, in which the brake lever is connected to the upper end of a sliding
rod or "piston" as it is termed, which latter passes downward through the lamp
bracket to the tubular rod (in which it is adjusted) and at whose lower end, is
connected the brake. At a position a little below this bracket, my improved
device is carried.
I will at once proceed to particularly describe this my invention, by the aid of
the accompanying sheet of drawings upon which are figures and numbers of
reference, like numbers referring throughout the several views to the same thing or
part, and in which :-
Fig. 1, is a side view in elevation, of this my improved locking device, unlocked,
and attached in position, under the lamp bracket, to the tubular rod.
Fig. 2, is a front view of Fig. 1.
Fig. 3, is a section of Fig. 2, on line A-B.
Fig. 4, is a front view in elevation, showing my improved device in its locked
position.
Fig. 5, is a sectional plan view of Fig. 4, on line C-D.
Fig. 6, is a detailed side view, and Fig. 7, a front view of the eccentric or cam
locking lever.
Fig. 8, is a side view, and Fig. 9, a front view of the key.
Fig. 10, is a side view of the front portion of a safety bicycle, showing my
improved locking device attached thereto.
I provide a lock body 11, having in it a hole whereby it may be passed on to the
rod 12, and upon which latter it may be adjusted and secured in any desired
position by means of the set pin 13. Upon the one side of this body 11, is carried
an eccentric or cam lever 14, which is provided with the stop 15, by which the
stroke or motion of the said lever is limited, so that it shall be distinctly felt by the
operator when the cam is in the position to be locked, that is, such stop rests
against the body, as seen in Fig. 4. Through the lock body a further hole is made
to receive the locking pin 16. The inner end of this pin is screwthreaded, whilst
its outer end 17, is provided with a square, (or other suitable shape) by which it
may be worked by the key 18. The hole in the body is preferably made so that
the outer (key) end 17, of the pin, is recessed therein. A suitable handy key 18,
is now provided by which the said pin 16, can be screwed inwards, so that its inner
end may project beyond the body into a hole or recess 19, formed in the lever 14,
at such a point opposite thereto, when in its locked position; as seen in Fig. 4; or
such screw may be withdrawn in order to unlock it.
Its action is therefore somewhat thus:-The device is firmly secured to the
rod 12, just below the fixed lamp bracket 20, so that when the cam lever 14, is
turned downward or unlocked as shown in Figs. 1, 2 & 3, the brake may be used
as ordinarily but upon lifting the lever 14, the cam part 21, presses beneath and
against the underside of the bracket 20, and so forces the brake 22, firmly upon
the wheel 23, and thereby locks it from rotation. The hole 19, in the cam lever is
now opposite the locking screw 16, and by means of the key 18, this may now be

page_text: quickly screwed forward therinto, and the said lever effectually locked, as shown
in Figs. 4 & 5. By unscrewing the said screw pin 16, the cam lever is again free
to be turned down and the brake at liberty for use, as seen in Figs. 1, 2 & 3.
It may in some cases be more convenient to attach this my improved device upon
some other rod than the one described at 12, but which nevertheless has com-
munication with the brake or with the wheel, substantially as in the manner shown
and described.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a locking device for cycles, the combination with the rod 12, and brake 22,
and its attendant mechanism, of the body 11, with the locking pin 16, and cam
lever 14, having the hole 19, constructed and operating substantially as shown and
described.
Dated this 9th day of November 1893
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicant's Agent.