Improvements in Electrical Bell and Electrical Alarm Clock Apparatus, applicable for use either in combination or separately.
Year: 1891

page_text: Date of Application, 11th Mar., 1891
Complete Specification Left, 11th Dec., 1891-Accepted, 16th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Electrical Bell and Electrical Alarm Clock
Apparatus, applicable for use either in combination or separately.
1, WILLIAM ENTWISLE, of 289, Newhall Lane, Preston, in the County of
Lancaster, Cashier, do hereby declare the nature of this invention to be as
follows
This invention has for its object to provide electrical bell and electrical alarm
clock apparatus which may be used either in combinaton or separately that is to
say when the electrical alarm clock is disconnected or removed from the electrical
bell apparatus that such clock may be available for use as an ordinary clock and
the electrical bell apparatus available (by connecting it by means of suitable wires
to a press button or pusher) for use as an ordinary call bell the apparatus being so
arranged that the connecting and disconnecting of the clock and bell apparatus
into and out of electrical contact with each other may be readily and rapidly
effected..
In carrying out my invention I employ a wooden box enclosing a battery of any
suitable kind and to the outside or in the inside of the said box (as may be
preferred) I attach an electrical bell to which is electrically connected by a wire
one of the poles of the battery. Another wire from the bell is carried to a terminal
on the box lid. The other pole of the battery is in electrical connection with a
second terminal on the box lid and the two terminals are placed at a suitable
distance apart to receive (so as to be in metallic contact with) two metal feet which
according to this invention are placed underneath an alarm clock as hereinafter
described.
The clock I prefer to employ is of the ordinary alarm clock class and of the
kind in which the works of the clock are enclosed and held within a cylindrical
sheet metal casing. To the underside of the metal casing I attach the two metal
feet hereinbefore referred to one of the feet being in electrical contact with the
said casing and the other foot insulated therefrom. The metal of the insulated
foot is arranged to project somewhat through the casing and the inner or inside end
of the said foot or a connection therewith is arranged to receive the pressure of a
spring or other suitable contact device which is caused to press upon the inside end
of the said insulated metal foot and thereby to bring it into electrical circuit with
the metal work of the clock and consequently with the other or non-insulated
metal foot. The contact spring or other device may be caused to make electrical
contact with the inside end of the insulated foot at any predetermined time by any
of the usual or other suitable alarm clock appliances but the ordinary "slip wheel
may be conveniently employed to impart the required to and fro sidewise movement
to a spring.
Another kind of clock equally applicable to the purposes of my said invention
and which is also enclosed within a cylindrical sheet metal casing is of that type in
which the ordinary hour finger is made with a fine tempered steel or hair spring
continuation which as it moves round and thereby makes electrical contact with a
metal pin puts into circuit an electrical bell which continues to ring until the hair
spring continuation has moved round with the clock finger and has "brushed" past
the said pin. In conjunction with a clock of the last named kind I mount the said
metal pin so as to project from a thin sheet metal rim forming (within the metal
casing) a circular frame round the edge of the clock dial. The rim is attached at
its outer edge to the circular glass front of the clock the rim and glass being so
arranged as to be readily movable within the casing from the outside round the

page_text: front of the clock dial so that the pin may be shifted or moved opposite any desired
hour and minute in readiness to receive the contact of the hair spring continuation
and so to cause the electrical circuit to be made and the electrical bell to be set
ringing. To the inside projecting part of the insulated foot (there being attached
to the metal casing of the clock two metal feet as in the previously described
arrangement) I attach one end of a thin flat metal spring whose other or free end
presses upon and is in electrical contact with the back of the said metal rim carrying
the pin. Thus when the air spring continuation on the hour finger is in contact
with the said pin the two metal feet will be in circuit with each other.
I have referred to two different constructions of electrical clocks as applicable to
the purposes of my invention but other kinds of clocks including those enclosed in
wood cases may be readily adapted thereto.
The two terminals in the lid of the box containing the battery and carrying the
electrical bell may be in tubular form and dished out or widened at the top so as to
be suitable for receiving and to make a satisfactory metallic contact with the
rounded lower ends of the two metal feet supporting the clock. The tubular form
of terminals facilitates the connection of conducting wires (for call bell purposes
when the clock has been removed) by allowing of the insertion of contact or
terminal pins at the ends of the said conducting wires. But the terminals may
conveniently be made in the form of flat metal plates let in flush with the box lid
the said plates having holes drilled through them for the insertion therein of the
said contact or terminal pins.
By the above described arrangements an electric alarm bell may be caused to
ring at any predetermined hour and to continue to ring until the clock is removed
from the box or out of electrical contact with the terminals. in the box lid. The
clock may moreover be at once removed or withdrawn from the box without any
unscrewing or the disengagement of any fastening appliances being required and in
like manner it may as readily be replaced on the box in electrical circuit with the
battery and the bell.
Dated this 11th day of March 1891.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.Č., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Electrical Bell and Electrical Alarm Clock
Apparatus, applicable for use either in combination or separately.
I, WILLIAM ENTWISLE, of 289 Newhall Lane, Preston, in the County of
Lancaster, Cashier, do hereby declare the nature of this invention and in
what manner the same is to be performed to. be particularly described and ascer-
tained in and by the following statement:-
This invention has for its object to provide electrical bell and electrical alarm
clock apparatus which may be used either in combination or separately that is to
say when the electrical alarm clock is disconnected or removed from the electrical
bell apparatus that such clock may be available for use as an ordinary clock and
the electrical bell apparatus available (by connecting it by means of suitable wires
to a press button or pusher) for use as an ordinary call bell the apparatus being so
arranged that the connecting and disconnecting of the clock and bell apparatus
into and out of electrical contact with each other may be readily and rapidly
effected.
In carrying out my invention I employ a wooden box enclosing a battery of any
suitable kind and to the outside or in the inside of the said box (as may be
preferred) I attach an electrical bell to which is electrically connected by a wire
one of the poles of the battery. Another wire from the bell is carried to a terminal on
the box lid. The other pole of the battery is in electrical connection with a second

page_text: terminal on the box lid and the two terininals are placed at a suitable
ipart to receive (so as to be in metallic contact with) two metal feet which
ccording to this invention are placed underneath an alarm clock as hereinafter
lescribed.
The clock I prefer to employ is of the ordinary alarm clock class and of the
kind in which the works of the clock are enclosed and held within a cylindrical
sheet metal casing. To the underside of the metal casing I attach the two metal
feet hereinbefore referred to one of the feet being in electrical contact with the
said casing and the other foot insulated therefrom. The metal of the insulated
foot is arranged to project somewhat through the casing and the inner or inside end
of the said foot or a connection therewith is arranged to receive the pressure of a
spring or other suitable contact device which is caused to press upon the inside end
of the said insulated metal foot and thereby to bring it into electrical circuit with
the metal work of the clock and consequently with the other or non-insulated
metal foot. The contact spring or other device may be caused to make electrical
contact with the inside end of the insulated foot at any predetermined time by any
of the usual or other suitable alarm clock appliances but the ordinary "slip wheel
may be conveniently employed to impart the required to and fro sidewise movement
to a spring.
Another kind of clock equally applicable to the purposes of my said invention and
which is also enclosed within a cylindrical sheet metal casing is of that type in which
the ordinary hour finger is made with a fine tempered steel or hair spring continuation
which as it moves round and thereby makes eléctrical contact with a metal pin puts
into circuit an electrical bell which continues to ring until the hair spring con-
tinuation has moved round with the clock finger and has "brushed" past the said
pin. In conjunction with a clock of the last named kind I mount the said metal
pin so as to project from a thin sheet metal rim forming (within the metal casing)
a circular frame round the edge of the clock dial. The rim is attached at its outer
edge to the circular glass front of the clock the rim and glass being so arranged as
to be readily movable within the casing from the outside round the front of the
clock dial so that the pin may be shifted or moved opposite any desired hour and
minute in readiness to receive the contact of the hair spring continuation and so to
cause the electrical circuit to be made and the electrical bell to be set ringing. To
the inside projecting part of the insulated foot (there being attached to the metal
casing of the clock two metal feet as in the previously described arrangement)
attach one end of a thin flat metal spring whose other or free end presses upon
and is in electrical contact with the back of the said metal rim carrying the pin.
Thus when the hair spring continuation on the hour finger is in contact with the
said pin the two metal feet will be in circuit with each other.
I have referred to two different constructions of electrical clocks as applicable
to the purposes of my invention but other kinds of clocks including those enclosed
in wood cases may be readily adapted thereto.
The two terminals in the lid of the box containing the battery and carrying the
electrical bell may be in tubular form and dished out or widened at the top so as
to be suitable for receiving and to make a satisfactory metallic contact with the
rounded lower ends of the two metal feet supporting the clock. The tubular form of
terminals facilitates the connection of conducting wires (for call bell purposes when
the clock has been removed) by allowing of the insertion of contact or terininal
pins at the ends of the said conducting wires. But the terminals may conveniently
be made in the form of flat metal plates let in flush with the box lid the said plates
having holes drilled through them for the insertion therein of the said contact or
terminal pins.
By the above described arrangements an electric alarm bell may be caused to
ring at any predetermined hour and to continue to ring until the clock is
removed from the box or out of electrical contact with the terminals in the box
lid. The clock may moreover be at once removed or withdrawn from the box
without any unscrewing or the disengagement of any fastening appliances being

page_text: required and in like manner it may as readily be replaced on the box in electrical
circuit with the battery and the bell.
In the accompanying drawings
Fig. is a front view of an electrical bell and battery box surmounted by an
electrical alarm clock constructed according to my said invention.
Fig. 2 is a plan view of the battery box carrying the bell. The broken lines at
Fig. 2 indicate the position of the clock when in place on the top of the box.
Fig. 3 shews in front view two alternative arrangements of contact-making
devices (for putting the clock and bell into electrical circuit) operated by the
ordinary slip wheel" of a common form of alarm clock and
Fig. 4 is a side view of one of the said arrangements shewn partly in section.
Fig. 5 shews in front view an arrangement of contact making device in which a
fine tempered steel or hair spring continuation on the hour finger of the clock
is employed in conjunction with a pin projecting from a sheet metal rim in front of
the clock dial as hereinbefore mentioned and
Fig. 6 is a sectional side view of the same taken at the diagonal line 1-2 at
Fig. 5.
a is a wooden box enclosing an electrical battery of any suitable kind and ban
electrical bell. ccare metal terminals passing through the box lid. In Fig. 2
these terminals are of a tubular kind but they may be made in the form of flat
metal plates as hereinbefore mentioned. dare the two metal feet projecting
from the underside of the cylindrical sheet metal casing e of the clock the
foot d being in metallic contact with the said casing and the foot being insu-
lated therefrom. The upper extremity of the insulated foot d' projects somewhat
through the clock casing and in one arrangement (shewn at the right of Fig. 3 and
in side view at Fig. 4) receives the pressure of a flat spring which presses against
the ordinary slip wheel and is moved or operated thereby so that when
required the metal work of the clock is brought into electrical circuit with the
battery and bell. To the left of the said Fig. 3 is shewn another form of contact-
making device consisting of a metal wire spring in electrical contact, with the
insulated foot at one end and its other end standing alongside of the slip wheel
so that the usual lateral movement of the slip wheel will bring it into contact
with the free end of the spring hand thus establish the required electrical circuit
to set the bell ringing. It will be observed that in the drawing for the convenience
of illustration the said wire spring is shewn in contact with the non-insulated
foot d but it would in practice have to be in contact with the insulated foot as will
be well understood. is a holder of non-conducting material for holding the
wire and insulating it from the adjoining metal work of the clock.
At Figs. 5 and 6 e is the cylindrical sheet metal casing of the clock i the dial
plate the sheet metal rim cemented to the back of the glass & the glass and rim
being movable round within the casing e by hand pressure so that the pin
projecting from the rim may be set or placed opposite any particular hour or
time at which it is desired the electrical circuit should be made and the bell set
ringing. m is the hour finger of the clock having the hair spring continuation n
which when it comes in contact with the pin establishes the electrical circuit and
causes the bell 6 to ring either until the clock is moved so that its feet d d or one
of them are or is out of contact with the terminal or terminals c c or until the
hair spring has brushed past the pin as herein before stated. o is the thin flat
metal spring fastened at one end to and in electrical contact with the insulated
foot its other or free end pressing upon and being in electrical contact with the
underside of the rim j as shewn.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The arrangement of electrical bell and electrical alarm clock apparatus
substantially in the manner herein before described and shewn in the drawings

page_text: whereby an alarm clock and electrical bell apparatus may be readily disconnected
or separated from each other.
2. The use or employment in conjunction with the metal work of an alarm clock
of two metal feet (such as d d) one of which is insulated from said metal work and
the other non-insulated therefrom substantially as described and shewn in the
drawings for the purpose set forth.
3. The combination of an electric bell and a battery box having terminals on its
upper side with an alarm clock having two metal feet (as hercinabove described)
arranged to make electrical contact with said terminals substantially as hereinbefore
described and shewn in the drawings for the purpose specified.
Dated this 11th day of December 1891
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.