A Looking Apparatus to Prevent Theft of Velocipedes.
Year: 1892

page_text: Date of Application, 13th Aug., 1892
Complete Specification Left. 9th May. 1893-Accepted. 8th July, 1893
PROVISIONAL SPECIFICATION.
A Looking Apparatus to Prevent Theft of Velocipedes.
JOHN ALLEN 17 Gadsby Street Bedford Bedfordshire Woollen Draper etc. do
hereby declare the nature of this invention to be as follows:-
The "Dunn-Allen Cycle-lock" is of simple construction small in size, circular
in shape and is attached by a projecting arin to the axle of the cycle which it
secures the diameter of the lock about 1 ins., and from exterior of front to back
plate is about 1 in. through, it secures the revolution of the cycle by means of a
spring bolt which slips into a perforation made for it in the cog-wheel, and thus
locks the machine securely.
"The lock" may be attached, as convenient to either of the "chain-wheels" of
the machine, the top end of bolt is square and worked by a square-perforated key.
Dated this Twelfth day of August 1892.
JOHN ALLEN.
COMPLETE SPECIFICATION.
A Locking Apparatus to Prevent Theft of Velocipedes.
JOHN ALLEN 17 Gadsby Street, Bedford, Beds., Woollen Draper etc. 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 :-
By means of a simple contrivance, the velocipede to which it is attached, is
effectually locked by securing (or preventing the revolution of) any of the wheels
of that velocipede.
Now amongst others, the advantages of this invention consist in a permanent
attachment of the locking apparatus, thus avoiding the necessity of carrying a
portable lock, and in the cleanness quickness and facility of the adjustment, without
incurring risk of breakage to any of the fragile mechanism of the velocipede so
locked, thus avoiding many of the inconveniences of locks as at present used.
In carrying out my invention I apply the said lock to the frame-work of the
velocipede and by means of a spring, screw, or bolt, (operated by a key) securely
lock a wheel of the velocipede, thereby preventing it from turning.
In the accompanying drawing
"
Fig. 1. shows a portion of the frame and driving-wheel of a bicycle with the lock
attached, "a" and "6" are bars of the frame which unite at "c"
to carry the
spindle on which the chainwheel "d" with the wheel "e" runs, "f" is the lock.
Fig. 2. is a section of the chainwheel "d" and lock "" drawn to a larger scale,
"k" is the case of the lock on which a lug "h" is cast this lug has a hole drilled
in it to enable its being passed onto the spindle "g" and firmly clamped under the
nut "" which screws onto this spindle. The construction and action of the lock
will be seen from Figs. 2, 3, 4, 5 and 6, of which Figs. 4 and 5 give two views of
the sleeve "m" and Figs. 3 and 6 give two views of the bolt " "p"; M is a sleeve
in which the bolt "p" slides, this bolt has one end formed square as at "pl" which
squared portion slips into the key of the lock-the key having a socket with a
square recess for this purpose; the sleeve " m is slotted as shown at "r" (Fig. 4)
in this slot works a pin "q" which is firmly fixed to the bolt "p" this pin also
bears against the spring "" (Fig. 2). A hole "u" (Fig. 2) is bored through the
web of the chain-wheel "d," this hole is so situated that by turning the wheel"
it can be brought opposite to the bolt "p"; hence when the bolt " P " is advanced
Dji
"
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"

page_text: it passes into the hole "u" as shown dotted at "" and so locks the wheels "d" & "e"
by preventing them from turning. The bolt is held in the hole "u" as shown
*
S
at by means of the pin "q" which is slipped into the recess
66 "in the
slot after the bolt has been pushed forward against the pressure of the
spring "t" by means of the key.
Sometimes the hole "
u
وو
is dispensed with and the lock so situated that the bolt
(Fig. 1) between the teeth "
"
"1
slips into any one of the recesses "10"
means also locking the wheels by preventing them turning: at "A" in (Fig. 1) the
by this
lock is shown dotted in such a position, the lug "h" being extended and curved so
as to embrace the arms 66 "
and ""; Fig. 7. shows the lock "f" with the
lug "" extended as shown at "" enabling the lock to be carried by the arms "a"
and "b."
a
By attaching the lock to the frame of the machine (i.e. velocipede) near to the
larger chain-wheel "z" the bolt "p" could be caused to pass into one of the
recesses "w" between the teeth "x" (Fig. 1) thus again preventing the chain-
wheel "d" and wheel e from turning.
66
66 3966
a
י,
"
""
C is the centre
In some cases I attach the lock to the front or steering-wheel of a velocipede
Fig. 1. Sheet 2. shows such application;
a is the wheel, " a portion of
the fork or frame of the machine which embraces the wheel "a," ",
or hub of the wheel "a" into which the spokes """" are fitted; "k" is the
lock as before described and is carried froni the fork "b" by means of a suitable
lug "d" which forms part of the case of the lock and is attached to the fork ","
by means of screws or any other suitable method; the bolt "p" of this lock will
when advanced by means of the key as before described enter a suitable hole
formed in the central portion or hub "c," of the wheel thereby preventing rotation.
In those cases in which the diameter of the hub "c" is so small that suitable holes
such as "e" cannot be formed the bolt " "may be caused to enter into one of the
spaces between any two successive spokes "r "of the wheel, or the hub "c" may
be provided with a plate or dise adapted for engaging with the bolt "p." Figs. 2 & 3
show two views of such a method of applying the lock drawn to a larger scale;
"c" is a portion of the hub shown dotted in Fig. 3, ""3 56 jo are spokes, "k" is
the lock which is attached to the fork "6" by means of the lug "d" which is
firmly clamped under the nut "y" which screws onto the spindle "t."
"z" is a
plate or disc which is firmly fixed by any suitable means such as bolting or brazing
onto the hub "c," this plate is provided with one or more holes "h" or slots "/
into which the bolt "p" can pass when advanced by the key of the lock thereby
preventing the wheel from revolving.
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 :-
1st. The application of a permanent attachment of locking-apparatus substantially
as herein shown and described, for the purpose set forth.
2nd. An apparatus for securely locking a velocipede consisting of a small
metallic case of such construction and containing such mechanical device as by
means of a spring, screw, or bolt is an effectual lock-substantially as herein shown
and described and for the purpose set forth.
3rd. The particular construction of locking-apparatus as herein described and
shown in the drawings.
Dated this 9th 1
1000
JOHN ALLEN,
Applicant.