A New or Improved Repeater Action for Alarm Locks and Latches, and for Bicycle and other Bells.
Year: 1887

page_text: Date of Application, 25th Apr., 1887
Complete Left, 24th Jan., 1888
Complete Accepted, 24th Feb., 1888
A New or Improved Repeater Action for Alarm Locks and Latches,
and for Bicycle and other Bells.
We, 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 to be as
follows:-
Our invention relates in part to an improvement upon an invention for which an
application for Letters Patent was made by us on the 27th day of May 1886 and
numbered 7099; and our said present invention has reference particularly to the
striker mechanism, or the striker actuating mechanism, by which a bell, gong or the
like, is successively struck, in order to create an alarm, or to call attention.
In carrying out our invention, we will describe it in connection with an ordinary
door lock.
Within the lock, or within the interior of the lock casing, a bell or gong is
situated, with its lip or edge presented horizontally, or in the direction of the front
and back covering or enclosing plates; and near the outside edge of the lip aforesaid,
a clapper carrying arm is jointed, the pivot pin of which, is disposed at that end of the
arm next to the bell; while the other or outward end of the said arm, is forked or
slotted; and within the slot, or between the forks, a stud of a face plate, or the end of
a crank, carried by a pinion axis, engages.
The pinion on the axis aforesaid, is in gear with a toothed wheel, which has upon
its axis, a pinion, and this pinion engages with, and is rotated by the teeth of a rack,
carried by, or upon a latch bolt. The axes of the wheels and pinions, are carried by
suitable bracket bearings.
The clapper stems which have heads at their outer ends, branch outwardly in
two opposite directions, from a point a little outside the joint or fulcrum pin upon
which the arm turns; so that on the said arm being oscillated or rocked upon its
joint pin, the clapper heads are respectively made to strike intermittently, and in a
continuous manner upon the lip of the bell, and so create an alarm or call attention,
ה
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page_text: The branches or stems of the clapper are directed at right angles or nearly so, to
the pivoted arm, and form with the said arm, a T end, with the joint pin a little
above an axial line, drawn from one arm to the other.
The exact position of the clapper stems, may be changed according to the striking
requirements.
The clapper axis may be substituted by a pinion axis, which carries a series of
radially disposed clapper arms, with jointed heads, and which said axis is continuously
rotated by wheel and pinion gearing of the kind as aforesaid; so that on motion being
imparted to the said axis, a number of clapper heads are made to strike in a continuous
manner, the lip of the bell.
When the lock is not required to make an alarm, or to call attention, on the exit or
entrance of a person on leaving or entering a room, a peg at the end of a chain is
passed through coincident holes in the lock case, and latch bolt, when the latter is
pushed back.
In applying our invention to bicycle, call and other bells, the striking mechanism
is operated by the pressing or rotation of a stem, or by the pressing or pulling of a
lever; and if necessary, the striking mechanism may be placed within the interior or
concave of the bell

page_text: and for Bicycle and other Bells.
We 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 :-
Our invention relates in part, to an improvement upon Letters Patent, for an
invention, of "Improvements in aların locks and latches," and dated the 27th day of
May 1886, and numbered 7099; and our said present invention, has reference
particularly to the striker mechanism, or the striker actuating mechanism, by which a
bell, gong or tho like, is successively and intermittently struck, in order to create an
alarm, or to call attention.
In carrying out our invention, we will describe it in connection with an ordinary
door lock.
Within the lock, or within the interior of the lock casing, a bell or gong is situated,
with its lip or edge presented horizontally, or in the direction of the front, and back
covering, or enclosing plates; and disposed between the inside opposite edges of the
lip of the bell aforesaid, a clapper carrying arm works; of which the pivot pin is
situated near the middle of the bell, while the other, or outward end, is forked, or
slotted; and within the slot, or between the forks of which, a stud of a face plate, or
the end of a crank, carried by a pinion axis, engages.
The pinion on the axis aforesaid, is in gear with a toothed wheel, which has upon
its axis, a pinion, and this pinion engages with, and is rotated by, the teeth of a
toothed sector, whose arm is connected to the latch bolt.
The clapper stems which have heads at their onter ends, preferably branch outwardly
in two opposite directions, from a point a little outside the joint or fulcrum pin, upon
which the arm turns; so that on the said arm being oscillated or rocked upon its joint
pin, the clapper heads are respectively made to strike intermittently, and in a
continuous manner upon the lip of the bell, and so create an alarm or call attention.
The branches or stems of the clapper, are directed at right angles, or nearly so, to
the pivoted arm, and form with the said arm, a T end, with the joint pin, a little
above an axial line, drawn from one arm to the other.
The exact position of the clapper stems, may be changed according to the striking
requirements.
When the lock is not required to make an alarm, or to call attention, on the exit or
entrance of a person leaving or entering a room, a peg at the end of a chain, is passed
through coincident holes, in the lock case, and latch bolt, when the latter is pushed
back.
In applying our invention to bicycle, call and other bells, the striking mechanism

page_text: is operated by the pressing or rotation of a stem, or by the pressing or pulling of a
lever.
We will now proceed to describe with reference to the accompanying drawing, the
manner in which the same is to be performed.
Figuro 1 represents in front elevation, with the top plate removed, an alarm or
ringing lock, provided with repeater action bell striking mechanism, constructed
according to our invention.
Figure 2 represents the mechanism separately, or removed from the lock casing,
and figure 3 is an edge view of the said repeater action mechanism, with the bell
shown partly in section.
Figure 4 is the clapper actuating arm. Figure 5 is a front and side elevation of
the face plate, stud and driving pinion.
a is an ordinary lock casing, provided with the usual lock bolt b, and latch bolt c,
both of which are guided and move in a horizontal plane.
The latch bolt c is suspended at its back end, by a pivoted, and swinging arm d,
upon the side of which, the latch follower e acts, and presses, on the said follower
being partially rotated, by the turning of a knob, or other handle, secured to, or upon
a spindle passing through the bushed eye, of the said follower. ƒ is a flat spring,
for the bringing back of the parts to their normal positions, on the releasing of the
knob, or on the liberating of the latch bolt.
is a toothed sector, hung at g³, and provided with an arm g³, with long slot g*, at
its lower end, which said slot works upon a pin or stud c, fixedly secured to, and
carried by the latch bolt c; so that on the latch bolt being reciprocated, either by the
pushing inwards, by the closing of a door, or the drawing inwards by the knob, for
the opening of a door, the toothed sector is turned upon its joint centre, and motion
imparted to the repeater action mechanism, as hereinafter described.
h is a pinion, with which the teeth of the sector g is in gear, and i is a toothed
wheel, upon the same axis as h.
The toothed wheel gears with a pinion j, carried upon the inner face, and fast
upon the same axis, as the face wheel k, whose top side, carries an excentric stud or
crank, whose neck works within the slot of a clapper carrying arm 7, pivoted or
hung at . This arm carries the clapper stems m³ of clapper heads m, which strike
the two opposite sides of the inside lip of the bell n, shown in horizontal section, so as
to exhibit the inside of the bell.
Thus, the pushing inwards of the latch bolt c, on the closing of a door, or the
drawing inwards of the latch for the opening of a door, turns the toothed sector 9,
upon its joint g, gives motion to the toothed wheel i, through the pinion 7, and from
thence to the axis of the face wheel &, through the pinion j, thereby giving motion to
the said face wheel and excentric stud 2, which gives an oscillatory movement to
the arm, and clapper heads m, which are made to strike intermittently, and in a
rapid manner, the lip of the bell, and so create an alarm, or call attention.
"When the lock is not required to make an alarm, or call attention, on the exit or
entrance of a person, leaving or entering a room, the latch bolt is allowed to be
lowered, so that its reciprocation shall have no effect, with respect to the ringing
mechanism. Thus, the sliding of the bolt o, to opposite the recess c³, on the underside
of the latch bolt, allows the said latch bolt to be lowered, and takes the stud, out of
the slot, wherein it works.
Or the non-ringing may be effected, by placing a peg through a hole c, in the
latch bolt, and a hole a³, in the lock casing, when the said holes a³ and c become
coincident.
The bell can be secured either to the inside of the lock covering plate, or carried by
an inwardly cranked bracket.
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. In repeater bell action mechanism. Carrying the clapper or clappers, or
5
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page_text: hammer or hammers, by means of a pivotted, and forked arm, excentrically jointed
and oscillated by, an excentric stud or crank pin, of a face plate, or its equivalent
substantially as described and set forth.
Secondly. The combination with a clapper carrying arm 1, 12, 13, of a crank or face
plate, and stud k, k², substantially as, and for the purpose as set forth.
Thirdly. The combination with the arm 1, 2, 13, face platek, 2, and hammer or
hammers m, m², of speed gear g, h, i, j, substantially as set forth.
Fourthly. The combination with a latch bolt, of a toothed sector g, with slotted
lower arm g, which takes upon a pin c², of the latch bolt, substantially as, and for
the purpose as herein described and set forth.
Lastly. In repeater action mechanism for alarm locks and latches, and for bicycle
and other bells, consisting of toothed sector g, g³, toothed wheel h, pinion i, pinion j,
face plate or crank k, k³, arm 1, 12, 13, and clappers m, m², as set forth.
Dated this Twenty-first day of January 1888.
JOEL CADBURY.
JOSEPH GEORGE ROLLASON.
By Henry Skerrett,
Agent for Applicants.