Year: 1886

page_text: We, JOEL CADBURY of Great Hampton Street Birmingham in the County of
Warwick Manufacturer, and JOSEPH GEORGE ROLLASON of Spencer Street Birming-
ham, aforesaid, Manufacturer do hereby declare the nature of this invention to be as
follows:-
The object of our invention is to give or create an alarm or ringing, on a person
entering or leaving a room by the door; the act of turning the knob or handle for
withdrawing the latch bolt gives the alarm and indicates an exit or entrance. Or the
turning of the handle or knob of a door of a bedroom gives a surprise, and calls atten-
tion to the fact that a person is clandestinely entering; so that by constructing and
arranging ringing alarm locks and latches as indicated, a person is unable to make an
entrance through a door without creating an alarm or calling attention.
Although we have indicated that a sound is emitted by the turning of a knob or
handle, yet a warning or notice of entrance can be determined by the shooting of the
lock bolt, while the latch bolt is without an alarm; and further, the insertion of a key
within a lock, may also create an alarm. by the sounding of a bell or gong.
We will first describe our invention in which an alarm is created by the withdrawal
of the latch bolt.
The lock casing is of the ordinary kind with the latch bolt moving in a horizontal
direction as usual, and withdrawn by a hanging arm or lever actuated by the arms of
the latch follower; so that on the turning of the spindle of the lock or latch in either
one or the other direction, the latch bolt is withdrawn, and again pressed home when
liberated, by a spring of the ordinary kind.
Attached to and carried by the. latch bolt, is an alarm operating rod, for giving a
continuous reciprocation to a clapper arm, which is made to strike rapidly a bell,
secured on the inside face of the lock casing. Thus, when a repeater action or a
continuous ringing is required during the time a knob or handle is turned, we propose
to impart the necessary reciprocation to the clapper or bell hammer, by the teeth of a
face wheel, which intermittently strikes and returns the hammer or clapper, on motion
being imparted to the face wheel, by rack like teeth on the alarm or pusher rod,

page_text: engaging with the teeth of a pinion secured on an axis upon which a ratchet wheel
turns. The face or escape wheel is free upon the said axis in one direction, but is
prevented from rotating in the other direction, by a pawl on the face wheel, engaging
with the teeth of the ratchet wheel; so that when the alarm rod is moved by the
motion of the latch bolt, the rack teeth engage with the pinion which rotates the axis,
and as the pawl is now engaged with the ratchet teeth, the face wheel and pinion are
compelled to move together. The motion thus imparted to the face wheel, causes the
double row of teeth upon its face, to act alternately upon a verge or pallet,
oscillating upon an axis carrying the stem of the bell hammer, thereby imparting to
the said hammer a series of rapid impulses or vibrations which are communicated to
the bell.
The return movement of the latch bolt, rotates the pinion through the alarm or
pusher rod, but allows the escape' wheel to remain at rest, by the pawl slipping over
the reverse way of the rack teeth.
Instead of having rack teeth upon an independent rod as described, they may be
formed from the latch bolt itself; and instead of giving the requisite rotation to the
face wheel which gives the necessary reciprocation to the bell hammer, by the latch
bolt or by the lock bolt, it may be rotated by being secured to the follower axis or
bush that is, the bushed axis through which the spindle of the lock or latch passes,
is surrounded by and carries a face or toothed wheel, which engages with a pallet or
the short end of a lever, of which the bell clapper is the long arm; so that by simply
rotating the spindle.and follower together, the bell clapper is rapidly vibrated, and an
alarm given by the ringing of a bell.
Although we have described an alarm lock or latch in connection with a repeater
action, yet a gong action or a detonating action may be employed if necessary.
In the case where an alarm is created, by the insertion of a key within a lock, we
propose to make the end of the key angular, so as to fit into like parts on the end of a
spindle carrying the clapper actuating mechanism; and further, when an alarm is
created by the shooting of the lock bolt, the same means are employed as described
with reference to a locking bolt.
Our invention is particularly applicable to the locks of safes and strong rooms, or
other depositories wherein articles of value are stored or kept.
JOEL CADBURY.
JOSEPH GEORGE ROLLASON.
By Henry Skerrett,
6, Livery Street, Birmingham,
Agent to the Applicants.

page_text: Wo, JOEL CADBURY of Great Hampton Street Birmingham in the County of
Warwick, Manufacturer, and JOSEPH GEORGE ROLLASON of Spencer Street
Birmingham aforesaid, Manufacturer, 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 :-
The object of our invention, is to give or create an alarm or ringing, on a person
entering or leaving a room by the door; the act of turning the knob or handle for
withdrawing the latch bolt gives the alarm and indicates an exit or entrance. Or
the turning of the handle or knob of a door of a bedroom gives a surprise, and calls
attention to the fact, that a person is clandestinely entering; so that by constructing
and arranging ringing alarm locks and latches as indicated, a person is unable to
make an entrance through a door without creating an alarm or calling attention.
Although we have indicated that a sound is emitted by the turning of a knob or
handle, yet a warning or notice of entrance can be determined by the shooting of
the lock bolt, while the latch bolt is without an aların.
We will first describe our invention in which an alarm is created by the withdrawal
of the latch bolt.
The lock casing is of the ordinary kind, with the latch bolt moving in a horizontal
direction as usual, and withdrawn by a hanging arm or lever, actuated by the arms
of the latch follower; so that on the turning of the spindle of the lock or latch in
either one or the other direction, the latch bolt is withdrawn, and again pressed
home when liberated, by a spring of the ordinary kind.
Attached to, or carried by the latch bolt, is a toothed rack, for giving a continuous
reciprocation to a clapper arm, which is made to strike rapidly a bell, secured on
the inside face of the lock casing. Thus, when a repeater action or a continuous
ringing is required during the time a knob or handle is turned, we propose to impart
the necessary reciprocation to the clapper or bell hammer, by the teeth of a face
wheel, which intermittently strikes and returns the hammer or clapper, on motion
being imparted to the face wheel, by rack like teeth on, or cut within the latch bolt,
engaging with the teeth of a pinion secured on an axis, upon which a ratchet wheel
turns. The face or escape wheel is free upon the said axis in one direction, but is
prevented from rotating in the other direction, by a pawl on the face wheel, engaging
with the teeth of the ratchet wheel; so that when the latch bolt is moved, its rack
teeth engage with the pinion, and as the pawl is now engaged with the ratchet
teeth, the face wheel and pinion are compelled to move together. The motion thus
imparted to the face wheel, causes the double row of teeth upon its face, to act
alternately upon a verge or pallet, oscillating upon a axis carrying the stem of the bell

page_text: hammer, thereby imparting to the said hammer, a series of rapid impulses or
vibrations, which are communicated to the bell.
The return movement of the latch bolt, rotates the pinion, but allows the escape
wheel to remain at rest, by the pawl slipping over the reverse way of the rack teeth.
The ringing mechanism may be operated by the spindle follower, instead of by the
latch bolt; that is, the bushed axis through which the spindle of the lock or latch
passes, is surrounded by, and carries a face or toothed wheel, which engages with a
pinion connected with a clapper, so that by simply rotating the spindle and follower
together, the bell clapper is rapidly rotated, and an alarm given by the ringing of
a bell.
Although we have described an alarm lock or latch in connection with a repeater
action, yet a gong action, or a detonating action may be employed instead, if necessary.
When an alarm is created by the insertion of a key within the key hole, or upon its
post, we propose that the said key should take upon an angular bush, or within a
socket, surrounded by a toothed wheel, whose teeth engage with the pinion, on the
axis of which, single or double clapper arms are secured and which clapper arms are
rotated and strike the lip of the bell, through the intervention of the toothed gearing
as indicated, on the key being turned for unlocking; and further, when an alarm is
created by the shooting of the lock bolt, the same means are employed as described
with reference to a latch.bolt.
Our invention is particularly applicable to the locks of safes and strong rooms, or
other depositories, wherein articles of value are stored or kept.
We will now proceed to describe with reference to the accompanying Drawings, the
manner in which the same is to be performed.
Figure 1 represents in front elevation (the lock plate removed) an alarm or ringing
lock, constructed according to our invention, and in which said figure 1, the supple-
mentary ringing appliance is shown in its acting position, while in figure 2, the alarm
apparatus is shown in its non acting position, by the latch bolt being lowered out of
position, with respect to the alarum mechanism-Thus, in figure 1, the act of turning
the handle or knob of a door, or the act of pressing back the latch bolt, raises an
alarm, by the ringing of the bell; and should a person clandestinely or otherwise open
a door, by the knob, or the pushing back of the latch, the act is at once detected by
the ringing of the hell.
In figure 2, which shows the ringing mechanism out of gear, with the knob or parts
connected with the knob, is arranged, so that at ordinary times, no ringing is effected.
The same letters of reference indicate corresponding parts in the figures 1 and 2.
a is an ordinary lock casing, with a lock bolt b, and latch bolt c, which both move
in a horizontal plane, and which said latter part c is suspended at its back end, by a
hanging pivoted arm d, against which, a latch follower e acts and presses, on the
turning of a knob secured upon the spindle e, passing thtough the bushed eye of the
said follower is a flat spring of the ordinary kind, for the bringing back of the parts
to their normal positions-g is a face wheel, with a double row of reversed V shaped
teeth, which gives a rapid intermittent motion to the pallet ² of a verge h, and through
this verge, the hammer i is operated, and made to strike rapidly the lip of the bellj,
with which it is in close proximity-This motion is secured by the axis of the face
wheel g, carrying a pinion k, which gears with a rack c², on the top edge of the latch
bolt The reciprocation of the latch bolt, by the turning of the follower, and through
the intervention of the hanging arm, a very rapid reciprocation is given to the hammer
or clapper.
The face wheel y turns free upon its axis in one direction, but is prevented from
rotating in the other direction, by a pawll engaging with the teeth of a ratchet wheel m,
which is secured on the pinion axis.
A spring n² keeps the pawl in position, or up to the face of its ratchet wheel; so
that when an entrance to a room is made, by the door, the act of turning the handle,
creates an aların, by the follower through which the lock spindle passes, pressing back
the hanging arm, which in its turn, takes back the latch bolt; and by the rack teeth

page_text: engaging with the pinion, and the pawl engaging with the teeth of the ratchet wheel,
which is upon the pinion axis, a rotary movement is imparted to the face wheel
or escape wheel, which gives a rapid vibratory motion to the pallet of the verge,
carrying the hammer, by the double row of teeth acting alternately upon the said
verge as afore stated.
The return movement of the parts effected by the spring at the back of the hanging
arm, re-rotates the pinion, but allows the escape wheel to remain at rest, by the pawl
slipping over the reverse way of the teeth.
To allow the ringing mechanism to be thrown out of gear, when no alarm or
surprise is required, this is done by a slide o with a knob o passing through a slot in
the lower underside of the lock case-The fore part of the slide has a turned up
end o³, which when out of position, comes beyond a swell or extension e³, on the
underside of the latch bolt c, and to admit of the lowering of the said bolt as
répresented in figure 2, it has a long hole, at its back end, wherein a stud d² of the
connection end of the hanging lever d, takes.
Figure 3 represents in front elevation, another form of my invention, and figure 4
is a cross section of the said alarm or ringing lock, upon the dotted lines A B
figure 3.
a is the lock case, is the locking bolt, c is the latch bolt, d is a hanging lever
pivoted at de is a follower, through which the knob spindle passes, and is a spring
for taking back the parts to their normal positions, on the closing of a door-g is a
toothed wheel, carrying upon its axis, a pinion k, and which said pinion and toothed
wheel are supported in suitable bracket bearings, as they both rotate together on the
same axis-h is a clapper or second pinion, supported in suitable bearings, and
secured to, or carried by an arm of double clappers i, which consecutively strike on
being rotated, the bell, and thereby give a continuous ring.
The ringing mechanism is thrown out of gear in the same manner as before, with
respect to figures 1 and 2, by the curled up end o³ of the slide o. o* coming under or
being moved away from the swelle on the underside edge of the latch bolt.
By the turning of the follower e, a reciprocating motion is imparted to the latch
bolt c, through the intervention of the hanging lever d, and spring f, which recipro-
cation of the said bolt, causes the rack teeth upon its upper edge, rotate the
pinionk, and through its intervention the toothed wheel g, which in its turn, rotates
the pinion h, and pivoted clapper arm, which on being rapidly turned, causes the
loosely jointed clapper heads i, to be thrown out in a direct line with its carrying
arm, and to strike and pass the bell in a successive and rapid manner, thereby giving
an alarm, or a continuous ringing.
Figure 5 represents the said ringing mechanism, applied to a latch instead of to a
lock.
Figure 6 represents another form of my invention, in which the motion of the
ringing mechanism, is obtained direct from the follower or follower axis.
a is the lock case as before, b is the bolt, c is the latch bolt, d is the hanging arm, f
is the spring, e is the follower, having upon it, a toothed quadrant e, which gears
with a pinion k, on the axis of the toothed wheel g, and this said toothed wheel gears
with a clapper pinion h, on the axis of the clapper arm This said arın ² carries a
swinging or loose jointed clapper head i, which strikes the inside of, and works within
the interior of a bell j.
The action is as follows-
On the opening of a door, the follower is turned by the knob spindle, which rotates
the toothed quadrant, and imparts motion to the pinion with which it is in gear;
This pinion being upon the axis of the wheel g, rotates it, and thereby imparts motion
to the clapper pinion h, and rapidly rotates the clapper, and strikes the bell in a
continuous manner.
Although we have only described a ringing lock and latch operated by a follower,
and by a key, yet our said improvements are applicable to sliding locks, or locks
having sliding bolts-The pinion k may be moved of gear with the toothed quadrant,
by its axis sliding back in the slot of the bracket l.

page_text: Having now particularly described and ascertained the nature of our said invention,
and in what manner the same is to be performed, we declare that what we claim is-
First. An Alarm or repeater ringing lock or latch. Operating or actuating the
alarm or repeater ringing mechanism of the said locks & latches, by means of the
knob or handle, or its equivalent or the followerer of the knob or handle, whereby
the turning of the said knob or handle, creates an alarm or ringing, substantially as
described & set forth.
Secondly. Actuating the mechanism for the ringing of the bell or bells of alarm or
repeater ringing locks or latches, by means of, or through the intervention of, the latch
bolt or the reciprocation of the latch bolt, substantially as described & set forth in
figures 1, 2, 3, 4 and 5.
Thirdly. Operating the repeater ringing mechanism of locks and latches, by a
toothed quadrant, or its mechanical equivalent, carried by the follower or by a spindle,
through the follower, substantially as set forth in figure 6.
Fourthly, Actuating the ringing mechanism of locks, by means of the locking bolt
as described.
Fifthly. Operating repeater bell striking mechanism as herein described & set
forth, by means of the locking key, whose forward end takes upon an angular peg, or
into an angular socket, connected to or carried by the said striking mechanism or part
or parts thereof, substantially as described.
Sixthly. A double headed clapper or bell hammer, for the ringing of the bell or
bells of alarm, or ringing locks and latches, substantially as described and set forth.
Seventhly. The improvement or improvements in alarm or repeater ringing locks
and latches, hereinbefore described and illustrated in figures 1 & 2 of the accompanying
drawings that is to say, constructing arranging and combining the part of alarm or
repeater ringing locks & latches, substantially as and for the purpose herein described
,and illustrated.
Eighthly. The improvement, or improvements in alarm or ringing locks & latches,
in which the parts are constructed, arranged, & combined, and acting in the way, and
for the purpose, substantially as described & set forth in figures 3, 4, & 5.
Ninthly. Arranging and combining the parts of alarm or ringing locks & latches,
substantially as described & set forth in figure 6, in which the motion is taken directly
from the follower by a toothed quadrant, gearing either with an intermediate pinion
carrying gearwheels, or directly with a pinion or the pinion carrying the clapper or
clapper arms.
Tenthly. Constructing the bell ringing gear of alarm'or ringing locks and latchos,
substantially as described and set forth in figures 3, 4, 5, and 6.
Lastly. Putting the ringing mechanism, or the parts which operate the ringing
mechanism, into, and out of gear, by means of a slide o, o³, knob o³ and rise e³ on the
underside of the bolt c, in combination with alarm locks and latches, substantially as
described and set forth.
Dated this 24th day of February 1887