Year: 1898

page_text: Date of Application, 7th Sept., 1898-Accepted, 26th Nov., 1898
Locksmith, 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 locks of the permutation type which may be employed
for locking the heads of bicycles and similar vehicles, and which may also, if desired,
be used to hold the brake in its operative position when the head is locked.
The accompanying drawings illustrate my improved locking device as applied to
the head of a bicycle.
Figure 1 represents a perspective view of the lock and machine head the former
being in its locking position.
Figure 2 illustrates it partly in plan and partly in horizontal section.
Figure 3 shows the lock in vertical section.
Figure 4 is an illustration of the lock also in vertical section but in its disengaged
position.
Figure 5 represents details of construction.
Referring to the drawings a indicates a fixed part of the machine framing, c is the
handle bar stem to which the lug or socket d is secured in any suitable manner.
This lug is provided with two projecting parts e, e, the space or groove between
which is destined for the reception of the lock bolt f. To disengage the bolt f from
head
the space between the projections and thus effect the release of the
of the machine, it is necessary to arrange the movable elements of the lock g in
their proper and predetermined positions. In the present case the movable elements
consist of the four rotatable discs h, i, k, l, bearing certain letters on their
peripheries as is well understood in this class of locks. In the example shewn
the word "hase" has to be formed by the discs to permit the disengagement of the
bolt.
The lock is provided with a rotatable pin m which is carried by the bearings n, n,
and passes through the discs h, i, k, l, and through the hub o of the bolt f. The
pin m is furnished with projections or transverse pins p, one for each disc and one for
the bolt hub. This last pin is always in engagement with a longitudinal slot formed
in the bolt hub so that the bolt is compelled to partake of any angular motion
communicated to the pin m. The pin m can only be rotated when the movable dises
are in their proper positions so as to allow a longitudinal movement of the pin m
towards the left hand side of the lock.
Each of the movable discs and the hub of the bolt is provided on one side or
face with a circular recess and with a key way or groove 7. See Figures 3, 4
and 5.
Fixed upon the pin m is a square or non-circular plate or the like q which is
capable of being moved into a similarly shaped recess formed in the inner face of one
of the bearings n as shown at the right hand side of Figure 3. As long as the
To enable
plate remains in the recess it will be impossible to rotate the pin m.
this to be done so as to unlock the bolt the pin m must be pushed a certain distance

page_text: to the left as shown in Figure 4, and to permit this the discs must be placed in
their proper positions. When this has been done the longitudinal movement of
the pin m causes the pin p which has previously been contained in the recess
on the face of the disc to pass through the key way of that dise and enter
the recess on the face of the next disc k. Similarly the pin from the disk enters
the recess on the face of the hub o, the pin from the disc i enters the recess on the
disc h, and the pin from the latter enters a recess formed on the inner face of
the left hand bearing n. The pin engaging with the slot in the hub o remains
in engagement therewith owing to the greater width of the hub. The non-circular
plate enters the circular recess on the face of the first disc l, so that the pin m is
now capable of rotary motion in which the bolt partakes. The head of the machine
may thus be unlocked.
When it becomes necessary to put the lock in its operative position the bolt is
turned upwards until it is in position between the projections e. The discs are then
properly placed and the pin m is pulled to the right as shown in Figure 3, the
plate q entering its corresponding recess in the bearing n. If now the discs be
disarranged the pin cannot be moved laterally or in an angular direction and the
bolt is secured in place.
If desired the brake may also be locked in place simultaneously with the machine
head. In this case one of the bearings n is cast or otherwise formed with a bored
or perforated lug & which contains the laterally movable pin t, which is normally
forced inwards by a helical or other suitable spring. The inner end of the pin t
projects into the path of the bolt f and this latter is furnished with an inclined or
cam part w. The locking movement of the bolt thus causes an outwards movement
of the pin t, the head of which is adapted to enter a groove formed in a sleeve v
upon the brake rod, (see Figure 2) and thus hold the brake in position during the
time the bolt f is in place between the projections e.
The brake would of course be
depressed and applied to the wheel before the bolt f was turned into place. The
double locking thus obtained gives the highest security against theft.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is
1. A permutation lock for bicycles and the like, consisting of a transverse pin
provided with a non-circular locking plate and capable of longitudinal motion and
angular motion, movable dises, and a bolt which is capable of partaking in the
angular movement of the transverse-pin, all constructed and arranged and operating
substantially as herein before described and as illustrated by the accompanying
drawings.
2. The combination with the lock hereinbefore described of a transversely movable
pin by means of which the brake may be securely held in place when the head of
the machine is locked, constructed arranged and operated substantially as herein-
before set forth and as illustrated by the accompanying drawings.
3. A locking device for bicycles and the like, constructed arranged and operated
substantially as herein before set forth and as illustrated by the accompanying
drawings.
Dated this 6th day of Senterher AD 1000
W. E. HEYS & SON,
Agents for the Applicant.