Year: 1898

page_text: I, JAMES RILEY, of "Hazeldene," Station Road, Bitterne, Southampton, in the
County of Southampton, Clerk, do hereby declare the nature of this invention to be as
follows:-
Under this invention there is provided a simple and inexpensive lock mechanism of
a secret nature, whereby the lock cannot be unlocked, or locked unless its manipulation
is understood.
The lock mechanism under iny invention is applicable to padlocks, and other locks
in which a sliding lock bolt is used, and I will more particularly describe it as applied
to a padlock.
The case and hasp of the padlock may be of the usual form, the hasp being hinged
to one side of the case, and locked by the shooting of a sliding lock bolt
therein.
According to my invention, inside the case and at the back thereof, I provide a disc
or its equivalent, this disc is held at the back of the case by a riveted or screw pin
on which it is free to turn a certain distance, a portion of the disc being cut away,
and a stop provided on the back of the case to limit the travel. On this disc there
are two fixed pins on which the lock key fits, one of these pins is a blind pin, and the
other is the true pin. In the front of this disc, and separated therefrom a distance
to allow the ward of a key to pass there is a second disc, and in front of this second
disc, and at a like distance therefrom there is a third disc, these three discs are
fastened together by suitable pins, and are revoluble together for the distance that
the first named disc is free to turn.
Between the second and third disc there is a central spindle which is free to turn
in the discs for a given distance, and extends through the case of the padlock, and
carries, and is attached to a tongue piece or keyhole guard by moving which the
discs can be revolved.
On the spindle there is fixed an arm, and on the second disc there are two
stop pins which allow the spindle to turn either way until the arm comes against
one or other of the stop pins, this allows movement of the tongue or keyhole
guard sufficient to expose the keyhole in the case, any further movement of the
tongue will cause the spindle to revolve the combined disces.
Between the second and third discs and having its fulerum on the back of the
third disc is a lever of the first kind, the upper end of the lever projects past the edge
of the disc, and takes into a slot in the sliding lock bolt, which it has to move to retract
or shoot the bolt. The lever has a hole in it to allow the spindle to pass through, and
to allow for the working of the lever when moving the sliding bolt. The bottom end
of the lever is provided with horns or equivalent devices with which the lock key
engages to move the lever and lock bolt, projections being provided as desired to fit
the wards of the lock kev.

page_text: The front plate of the case is provided with the usual keyhole, the third and
second discs are each provided with two keyholes, a false one, and a true
one.
The two keyholes are spaced apart a distance equal to the distance apart of the
keypins on the first disc, and come over such pins, and so that when the combined
discs are moved their full stroke, one or other of the keyholes in the discs is opposite
the keyhole in the case front. The true keyhole in the second disc has, in addition to
the usual slot to admit the key-wards, a second slot at right angles to the usual
slot.
In the normal position of the discs the false keyhole is opposite the keyhole in the
case.
In order to retain the discs in this position a spring catch is provide inside the
case, and a notch is provided in the edge of the front disc into which this spring
catch takes, the spring holding the discs but allowing them to turn when moved by
the tongue or keyhole guard.
The following is the action of the lock, mechanism :—
On turning the tongue the false keyhole in the discs is exposed through
the key-hole in the case, if the key is now inserted it can be turned
in the space between either of the discs but has no action on the
lock mechanism by reason of the key-wards not coming into contact
with
the locking lever. To bring the mechanism into position the tongue is further
turned, and the discs are thereby shunted so that the true keyhole in the discs is
brought opposite the keyhole in the case. The key on being inserted will have no
action on the mechanisin if turned between the first and second discs, and if turned
between the second & third discs it will come against a stop pin, and cannot
actuate the locking lever, but to actuate the mechanism the key must be fully
inserted so that the wards can be turned between the first & second discs, the key
is then turned to a right angle to the keyhole, & withdrawn through the second
slot in the second or centre disc, and the key can now be turned to retract or shoot
the sliding bolt. After retracting the sliding bolt the key can be withdrawn, and the
sliding bolt can be shot by moving the tongue or guard to its normal position the
action of moving the discs giving movement to the locking lever, and thereby to
the sliding lock bolt.
The mechanism is applicable to any lock having a sliding lock bolt.
I, JAMES RILEY, of "Hazeldene," Station Road, Bitterne, Southampton, in the
County of Southampton, Clerk, 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:--
Under this invention there is provided a simple and inexpensive lock mechanism
of a secret nature, whereby the lock cannot be unlocked, or locked unless its
manipulation is understood.

page_text: The lock mechanism under my invention is applicable to padlocks, and other locks
in which a sliding lock bolt is used, and I will more particularly describe it as applied
to a padlock.
Reference being had to the accompanying drawings, and to the letters and figures
marked thereon which correspond with those used in the following explanation; like
letters and figures being used to denote like parts throughout the various views.
Figure 1 shows an outside view of a pallock of the usual form showing the
movement of the tongue or keyhole guard hereafter described.
Figure 2 is an end elevation of the padlock.
Figure 3 is an interior view of the padlock case showing the back plate.
Figures 4, 4, 5, 5, 6, 6 and 6 show details of the lock mechanism hereafter
described.
Figure 7 shows the interior of the padlock case and lock mechanism in its secret
and locked position, and
Figure 8 shows the lock mechanism in the position for unlocking.
Figure 9 shows an end view of the padlock with the side of the case removed.
Figure 10 illustrates a key suitable for unlocking the padlock.
With reference to the drawings A designates the case, B the lasp, and C the sliding
lock bolt of the padlock, these are of the usual forn the hasp B being hinged to one
side of the case, and locked by the shooting of the sliding bolt Ctherein.
According to my invention inside the case A and at the back thereof I provide a
disc a or its equivalent, this disc a is held at the back of the case A by a riveted or
screw pin b on which it is free to turn a certain distance, a portion of the disc a being
cut away at a¹, and a stop pin c provided on the back of the case A to limit the travel.
On this disc a there are two fixed pins de on which the lock key Figure 10 fits, one
of these pins d is a blind pin, and the other pin e is the true pin. In the front of
this disc a and separated therefrom a distance to allow the ward of the key x to pass
there is a second disc f, and in front of this second disc and at a distance therefrom
there is a third disc h, these three discs a fh are fastened together by suitable pins
and distance pieces and are revoluble together for the distance that the first named
disc a is free to turn by reason of the stop pin c. Between the second disc f and the
third disc h there is a central spindle which is free to turn in the discs f and for
a given distance, this spindle k extends through the case plate A¹ of the padlock and
carries, and is attached to a tongue piece or keyhole guard by moving which the
し
discs afh can be revolved together.
On the spindle there is fixed an arm k¹, and on the disc f there are two stop
pins which allow the spindle k to turn either way until the arm ¹ comes against
one or other of the stop pins this allows movement of the tongue or keyhole
guard sufficient to expose the keyhole m in the case plate A', any further movement
of the tongue causes the spindle k to revolve the combined discs af h.
し
Between the second disc f and disc h and having its fulcrum 9 on the back of the
disc h is a lever p of the first kind, the upper end of the lever p projects past the
edge of the disc and takes into a slot r in the sliding lock bolt C which it has
to retract or shoot. The lever p has a slot p' in it to allow the spindle k to pass
through, and to allow for the working of the lever p when moving the sliding bolt C.
The bottom end of the lever p is provided with horns or equivalent devices with
which the lock key x engages to move the lever p and thereby the lock bolt, pro-
jections being provided as desired to fit the wards of the lock key.
The front plate A¹ of the case A is provided with the usual keyhole m, the third
disc h and second disc fare each provided with two keyholes d' el a false one and a
true one.
The two keyholes d'e¹ are spaced apart a distance equal to the distance apart of
the key pins d, e on the first disc a and come over such pins, and so that when

page_text: the combined discs a, f, h are moved their full stroke one or other of the key-
holes d¹, e¹ in the discs f, h is opposite the keyhole m in the case front A¹.
The true keyhole e in the second disc f has, in addition to the usual slot e² to
admit the keywards, a second slot e3 at right angles to the usual slot.
In the normal position of the discs a fh the false keyhole d¹ is opposite the
keyhole m in the case front A¹. In order to retain the discs a fh in this
position a spring catch s is provided inside the case A and a notch s¹ is provided in
the edge of the front disc into which this spring catch s takes, the spring holding
the discs a, f, h but allowing them to turn when moved by the tongue or keyhole.
guard 1.
The following is the action of the lock mechanism :—
On turning the tongue to the left, see first dotted position Figure 1, the false
keyhole d¹ in the discs f h is exposed through the keyhole m in the case plate A¹,
if the key. x is now inserted it can be turned but has no action on the lock
mechanism by reason of the keywards not coming into contact with the locking
lever p. To bring the mechanism into position the tongue is further turned to a
nearly vertical position, as shown in dotted lines Figure I, so that the true keyhole e¹
is brought opposite the keyhole m in the case plate A¹.
The key x on being inserted passes through the keyholes e¹ in the discs f, h, but
will have no action on the mechanism if turned between the discs a, f, but to actuate
the mechanism to unlock or retract the bolt C the key must be fully inserted so that
the wards can be turned, the key is then turned to a right angle to the keyhole c¹,
and withdrawn through the second slot e³ in the disc f, and the key x can now
be turned so as to move the lever p to retract or shoot the sliding bolt C. After
retracting the sliding bolt C the key x can be withdrawn, and the sliding bolt C
can be shot by moving the tongue or guard to its normal position the action of
moving the discs a fh giving movement to the locking lever p and thereby to
the sliding lock bolt C.
To lock the mechanism the key x is turned from left to right, and to unlock
it is turned from right to left; a stop pin is provided between the discs f
and which prevents the key x being turned between the discs f, h to move the
lever p to retract the bolt C when in the locked position without first fully
inserting it between the discs f and a and withdrawing it through the slot e³ so
as to come between the discs f, h, but if in an unlocked position the key can
be turned in the first instance between the discs f and h to lock the mechanism as it
is turned from left to right and will not come against the pin n. A spring catch
may be used instead of the pin which will allow the key to pass when turned from
right to left to withdraw it but acts as a stop when the key is inserted and turned in
the first instance between the discs h, f.
The mechanism is applicable to any lock having a sliding lock bolt.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed I declare that what
I claim is
1. A lock mechanism constructed and operating substantially as herein described,
that is to say, a mechanism comprising a series of discs provided with a locking lever,
and false and true keyholes, and capable of limited rotation, by means such as the
keyhole tongue, or guard on the lock case, whereby on rotation of the discs a true
keyhole is exposed, and on insertion of the key and operating it as described the lock
mechanism can be worked as set forth.
2. In a lock mechanism the combination with a lock case and lock bolt of a series
of discs a, f, h, capable of turning in said case, a lever p capable of actuating said
lock bolt, a spindle k, and tongue piece 7, by which said dises are moved, and whereby
a true keyhole e¹ is exposed as set forth.
3. In a lock mechanism having a false and true keyhole such as herein described,
providing the true keyhole with a secondary slot through which the wards of the key 5
must be drawn before the mechanism can be worked as set forth.

page_text: 4. The improved lock mechanism constructed, arranged and operating substantially
as and for the purposes described with reference to the accompanying drawings.
Dated this 12th day of June 1899.
FREDERICK J. CHEESBROUGH, Fel. Chart. Inst. P.A.,
Grant & Maddisons, Bank Buildings, Canute Road, Southampton,
Applicant's Agent.