Improved Locking Apparatus for Cycles.
Year: 1897

page_text: Improved Locking Apparatus for Cycles.
TOM SHELLARD 6 Kent Terrace Foleshill Road Coventry Engineer THOMAS
JOHN YEOMANS GOULD 1 Starley Road Coventry, Turner do hereby declare-the--
nature of this invention to be as follows:-
Invention consists in an arrangement for locking the driving part of a cycle.
The arrangement consists of a pin threaded on the outside having a square or any-
other shape end with a key a corresponding fit to end, this pin fits inside the
oil cup or lubricator in bottom bracket which is secured with a nut & washer
on the inside of bracket, this oil cup is threaded on the inside the pin fitting this
threaded hole is turned down by means of key aforementioned into a groove cut in
axle thereby preventing the turning of same. This pin may be fitted in the under-
neath part of bracket. Arrangement may be made to work inside oil cup by
various means, by releasing pin & allowing it to drop in groove of axle being one
method.
1007
TOM SHELLARD.
THOMAS JOHN YEOMANS GOULD.
Improved Locking Apparatus for cycles.
We, TOM SHELLARD of 6 Kent Terrace, Foleshill Road, Coventry, and THOMAS
JOHN YEOMANS GOULD of 1 Starley Road, Coventry, Engineers, 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 a method of locking cycles which has the advantage
of being much more secret than most other cycle locks, and it consists in a device
by which a bolt concealed in a hollow pillar (which resembles and may be used
as a lubricator) on the crank axle bearing bracket may be projected into a hole
or slot formed in the crank axle or preferably in a collar thereon, so as to prevent
the rotation of the said crank axle and 'the use of the cycle to which it is applied.
And in order that our invention may be properly understood and readily carried
into effect we will describe the same with the aid of the accompanying draw-
ings, though we do not wish to confine ourselves to the details shown therein, as
these may be varied without departing from our invention.
Figure I is a longitudinal section through the crank axle bearing bracket of
a cycle showing the application of our invention thereto.

page_text: Figure II is a transverse section on the line a-a in Fig. I.
Figure III shows a key suitable for operating our improved locking apparatus.
The same numerals refer to the same parts throughout the drawings.
The crank axle 2 is provided with a suitable radial hole or slot (hereinafter
referred to as a hole) which may be bored directly therein, but in order that the
axle may not be weakened by the hole, we prefer to form a collar 4 on the axle
and form the hole in such collar. The crank axle bearing bracket 5 is provided
with a radial hollow projection or pillar 6. The said pillar may be cast or stamped
in one piece with the said bracket, or it may be provided with a collar 7, external
thread 8, shaped washer 9 and lock nut 10, so as to be bolted to the bracket as
shown, or it may be soldered to the bracket, or otherwise attached thereto, so that
it cannot be readily removed by an unauthorised person. The pillar 6 is tapped
to receive a bolt 11, the head 12 of which bolt is squared or otherwise adapted to
receive a suitable key such as 13; the body 14 of the bolt is screwthreaded to suit
the pillar and the foot 14 thereof is adapted to enter the hole 3 in the axle. It
will be obvious that when the bolt 11 is screwed down into engagement with the
hole (as shown in Fig. I), the axle will be prevented from rotating and the
machine rendered unrideable; when the bolt is screwed up out of the hole (as
shown in Fig. II) the axle will be free to rotate and the machine may be ridden
in the ordinary way.
To retain the bolt in its raised position, the said bolt may
be provided with a collar near its foot which will press against the lower end of
the pillar or the inner surface of the bracket when the bolt is screwed up, the
inner end of the pillar being, in this case, made shorter than shown. But we
prefer to construct the screw cap 16 which is used to close the top of the pillar,
with a transverse slot, as shown in Figure II, or to otherwise adapt it to fit the
head 12 of the holt; so that when the bolt is screwed well up the cap may be
fitted thereon and the two together screwed down into the pillar until the flange 17
of the cap bears on the top of the pillar. As the cap' cannot descend further and
the bolt cannot rotate without the cap, the bolt is prevented from accidently work-
ing further down the pillar and engaging with the hole in the axle. The cap is
unscrewed and removed previously to locking the cycle by screwing down the bolt.
There may be more than one hole in the axle, but in the case of a bicycle we
prefer to arrange that when the bolt is in engagement with one of the holes, the
pedal-cranks are in a vertical or nearly vertical position, so that the machine may
be securely propped up by the lower pedal resting on a curb or the like. The
pillar is not necessarily situated at the top of the bracket, but we prefer to arrange
it there and to make the pillar and its cap closely resemble a lubricator of ordinary
form, so that the lock will not be readily detected; further, by making the screw
threads of the bolt and pillar a fairly loose fit the lock may be used as a lubricator,
the oil being introduced into the pillar and working its way down the threads into
the bearing or the bolt may be bored through or formed with one or more
portions or its exterior cut away longitudinally to facilitate the flow of the oil
into the bearing.
As a modification, the axle may be provided with a radial stud for studs instead
of a hole and the bolt may have a socket at the foot adapted to receive such stud
or studs and other modifications may be made without exceeding the limits of
our invention.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed we declare that what
we claim is:
1. Locking apparatus for cycles, comprising a hollow pillar secured to or
formed in one with the crank axle bearing bracket, a hole in the crank axle,
and a bolt working in the said pillar and adapted to engage in the said hole in the
axle, substantially as herein described.
2. In locking apparatus for cycles, the combination with the crank axle bearing
bracket and the crank axle of, a hollow tapped pillar such as 6 a bolt such as lī

page_text: and a hole in the axle such as 3, with means for causing the said bolt to engage
in the said hole and for releasing the one from the other, substantially as set
forth.
3. In locking apparatus of the kind referred to in the preceding claiming
clauses, providing the bolt with a collar adapted to press against the inner end of
the pillar or the inner surface of the bracket when the bolt is screwed up, in order
to retain the said bolt in its raised position, substantially as herein described.
4. In locking apparatus of the kind referred to in the preceding claiming
clauses adapting the cap 16 to fit the head of the bolt so that when the said cap
and bolt are engaged and screwed down the pillar so far as the cap will allow, the
bolt will be prevented from descending further, substantially as and for the pur-
pose set forth.
5. The construction, combination and arrangement of the several parts con-
stituting our improved locking apparatus substantially as herein described and
as illustrated by the accompanying drawings.
Dated this 9th day of October 1897.
G. DOUGLAS LEECHMAN,
18 Hertford Street, Coventry, 75 Chancery Lane, London, W.C., and
49 Middle Abbey Street, Dublin Patent Agent for the Applicants.