Improvements in Locking Devices for Cycles and other like purposes.
Year: 1898

page_text: Date of Application, 14th Sept., 1898-Accepted, 5th Nov., 1898
COMPLETE SPECIFICATION.
Improvements in Locking Devices for Cycles and other like purposes.
I, WILLIAM FLETCHER, of 14, Northcote Terrace, Kirkewhite Street, Notting-
ham, Machine Fitter, 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 for improvements in locking devices for cycles and other like
purposes has for its object a device which can be fitted either to the steering
head so that the cycle cannot be steered or to the pedal crank so as to prevent
operation thereof to move the cycle by unauthorised persons and consists essen-
tially of an improved construction of lock, which is very simple while it is practi-
cally impossible to undo the same without the use of the key and which does not
interfere in any way with the usual operation of the cycle.
In order that this invention may be more clearly understood reference is had to
the accompanying sheet of illustrative drawings on which-
Fig. 1 is an elevation showing a locking device fitted to the steering head of a
cycle.
Fig. 2 is an elevation showing a locking device fitted to the pedal crank.
Figs. 3, 4 and 5 are detailed views of the arrangement shown in Fig. 1.
Fig. 6 is a detail view of a portion of the arrangement shown in Fig. 2 and
Fig. 7 shows the key used for locking and unlocking in either arrangement.
Referring first to the arrangement shown in Figs. 1, 3, 4 and 5 upon the steer-
ing post a collar bis fitted so as to rotate therewith in accordance with the
movements of the handle-bar c and to this collar is attached a link by means of
the pin or bolt c. This link d as will be seen more clearly in Fig. 5 is formed
with a central opening and is somewhat hollowed out adjacent to said opening.
A slot is formed to one side and a recess or groove is also provided.
Upon the stay f a clip is fitted, carrying the barrel g.
this barrel the locking spindle h is passed. The spindle
Fig. 4) is provided with a locking tongue and its other
hollow. A cross pin 2 passes across this hollow portion and pro-
jection is also provided. A spring is placed round the spindle h within the
barrel g.
A slot g² and a recess are provided at the end of the barrel g.
The key employed for locking (see Fig. 7) is provided with an operating
head and with a bifurcated end.
The mode of operation is as follows:-
Within
h (see
end is
a
When it is desired to lock the cycle, the key j is inserted in the barrel g so that
its bifurcated end engages with the cross pin h³. The locking spindle his
then pushed inwards until the tongue passes through the slot and is then
turned by means of the key until the tongue h¹ engages with the recess or
groove The key is then removed and it will be readily understood that as
the steering head is prevented from moving the cycle cannot be used until the
locking device is released. To unlock the cycle, the key is applied again to the
spindle to operate it in a similar manner. The spring tends to keep the parts

page_text: in engagement. The projection 2 prevents the spindle h from passing right out
of the barrel g and fits into the recess g³, while by turning the spindle both the
projection 2 and the tongue h¹ can be caused to pass through the slot g³.
A
In the modified arrangement shown in Fig. 2 a fitting k is attached to the
pedal crank and is provided with the opening and slot 2. The spindle mis
carried in the bearings 1, 2, on the clip n and is provided with a tongue m cross
pin m² and projection m3 as in the case of the spindle h above described.
spring is also provided. By means of the key the spindle m can be operated
in the manner described above for the spindle so that the tongue m¹ passes
through the slot and is turned to engage with the fitting k which is hollow so
as to prevent movement of the pedal crank 1.
It will therefore be seen that the invention provides a locking device for
cycles whereby the cycle can be left and its use prevented by unauthorised persons
either by locking the steering head or the pedal crank, or both may be fitted. The
key is carried in the pocket of the rider.
This invention can also be used for fastening devices for many purposes such as
window fasteners, door fasteners, and for preventing the unauthorised usage of
machines.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
(1) An improved locking device for cycles comprising a link attached to the
steering head, a barrel mounted on the stay by means of a clip and a spindle
mounted in the said barrel which is operated by means of a detachable key so
that when turned a tongue upon it can be caused to engage with the link to pre-
vent movement of the steering head and thus prevent use of the cycle by
unauthorised persons substantially as described.
(2) An improved locking device for cycles comprising a hollow fitting attached
to the pedal crank, bearings mounted on the stay by means of a clip, and a
spindle carried by the said bearings which is operated by means of a detachable
key so that when turned it can be caused to engage with the fitting to prevent
movement of the pedal crank and thus prevent use of the cycle by unauthorised
persons, substantially as described.
(3) An improved locking device for cycles, substantially as described with
reference to Figs. 1, 3, 4, 5 and 7 of the drawing.
(4) An improved locking device for cycles, substantially as described with
reference to Figs. 2, 6 and 7 of the drawings.
(5) An improved locking device for cycles and for other like purposes substan-
tially as described with reference to the drawings and for the purposes specified.
Dated this 14th day of September 1898.
GEO, H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.