Improvements in and Connected with Electrically Wound Clocks.
Year: 1887

page_text: Date of Application, 1st Feb., 1887
Complete Left, 1st Nov., 1887
Complete Accepted, 2nd Dec., 1887
PROVISIONAL SPECIFICATION.
Improvements in and Connected with Electrically Wound Clocks.
I, WILLIAM JAMES BARNSDALE of 18 Brunswick Place, City Road in the County
of Middlesex Horologist, do hereby declare the nature of this invention to be as
follows:-
:-
This invention relates to that class of clocks which are intended to be wound at
suitable intervals by means of an electro motor.
The invention consists of the arrangement and combination of parts, the nature of
which is hereinafter described by which such clocks may be accurately wound both as
to the indicating and striking mechanism. Electrical contact points or springs are
suitably placed with relation to the centre wheel and a corresponding pin wheel driven
thereby or acting in unison therewith. The contact is broken or maintained for any
determined period depending upon the intervals at which it is desired to wind the
actuating mechanism and the length of time required to effect a proper winding
thereof. The winding is effected by means of the revolving armature of an electro
motor which acts upon suitable wheel trains in connection with the mechanism
but such motor is only actuated when the circuits are completed through the springs
or contact points before referred to and ceases to act so soon as such circuit is
broken.
In order to be able to wind both sets of actuating mechanism with a comparatively
small motor, I mount the driving wheels upon a pivoted frame, one end of which is
connected with a rod actuated by the going train. The motion thus obtained alter-
nately connects the motor with the winding mechanism of the indicating and of the
striking parts.
In clocks of an analogous kind as heretofore constructed, difficulty has been
experienced in effecting the proper amount of winding for the various discharges of

page_text: one"
the spring or weight. For example if it has been determined to wind the clock each
hour, it will be obvious that to maintain an even actuating power such a clock will
require less winding of the striking mechanism after having struck the hour "
than will be requisite after it has struck "twelve," and if the winding is adapted for
the largest possible discharge, the result will be an overwinding as regards the smaller
hours. To obviate this great disadvantage I cause the discharge at each striking to
be the same, and this I accomplish by allowing the pin wheel to make a complete
revolution, whether for actuating the hammer once or twelve times, the requisite
number of blows being obtained by employing pins of graduated lengths upon the
pin wheel which is moved into its proper position by means of "snail" and " pump
work, or if preferable the striking lever may be so operated upon.
27
Dated this 1st day of February 1887.
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London,
Applicant's Agent.

page_text: Improvements in and Connected with Electrically Wound Clocks.
1, WILLIAM JAMES BARNSDALE of 18 Brunswick Place City Road in the County of
Middlesex, Horologist, 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 that class of clocks which are intended to be wound at
suitable intervals by means of an electro motor.
The invention consists of the arrangement and combination of parts, the nature of
which is hereinafter described by which such clocks may be accurately wound both as
to the indicating and striking mechanism.
In the accompanying drawings which form part of this specification―
Fig. 1 represents a front view of a clock.
Fig. 2
Fig. 3
::
"
a side elevation of same.
a detached plan view of the spring lever, and clutches which
alternately bring the motor into gear with the ordinary and striking gear.
Fig. 4 is a back view of the barrels and contact spring.
The motor A is of the usual construction, the electro magnets being electrically.
connected to one pole of the battery while the other pole is connected to the contact
spring a which is insulated from the frame of the clock by insulating piece a¹, the
circuit being alternately completed through the winding barrels B. B₁ and train
wheels by means of contact points a² carried on arms a³, which are loosely mounted
on arbors b as are also the said winding barrels. Arbors 6 have rigidly attached to
them short arms carrying pins or projections 6' which engage arms a when the
arbors & revolve and carry them around until face a³ comes in contact with spring a,
when the circuit is completed and the motor winds the barrel B or B' as the case may
be. As shown in Fig. a slight forward rotation of arbor b will bring contact spring
off the insulating piece on to contact face a², when the circuit through the train
wheels will be completed and the motor through the said wheels will wind barrel B,
which as previously stated is loosely mounted on arbor b. When barrel B is just
concluding its revolution, pin 63 carried thereby will come in contact with the back of
arm a³ and force it out from under spring a, thus breaking contact and preventing
over winding. If the going train for the hands be wound say at thirty minutes past
each hour, then the going train for the striking mechanism may be wound immediately
after having struck the hour the winding being the same as for barrel B, and as an
additional precaution a stop may be placed on arbor b which moves the star piece in
one direction when the pin wheel is revolved and stops the winding barrel when it has
made a complete revolution, the arbor b itself being stopped by the usual pallet wheel
when catch ³ (Fig. 1) drops into a recess on disc B² from which it is lifted against the
action of spring in the usual
The pin wheel C has a series of
pins c, c², c³, etc. of graduated length and makes a complete revolution each time the
clock strikes, the number of strokes being regulated by the position of the hammer
manner.

page_text: tail D rigidly mounted on arbor d which is capable of longitudinal movement and is
kept pressed forward by spring d' against the end of centrally pivoted lever D¹, the
other end of said lever resting upon a snail of stepped wheel D2, which as the hours
advance raise the end of D₁ and press back arbor d so that tail DD will be in line to
engage the proper number of pins on pin wheel C as the latter makes its revolution at
each hour.
The winding is effected from the armature of the motor by means of a gear wheel
which engages with wheels E, E¹, loosely mounted on arbors e, e¹, which through
pinions e², e, all in Fig. 3 transmit their motion to barrels B and B respectively.
Secured to the wheels E, E', are toothed or clutch plates f, f, corresponding discs f², f³,
being loosely mounted on arbors e, el, on which they are prevented from rotating by
pins or feathers ft. When the clock is about to strike, a raised surface g (which is
most clearly shown in Figs. 1 & 3) passes under plate attached to rod G which is
thereby drawn out, bringing with it one end of pivoted spring F and withdrawing the
face off from that off, the other end of spring Fat the same time pressing to f; so
that after the striking and when contact is made by spring a the armature shaft is in
gear with barrel B¹ which it winds, after which, as the hour progresses piece g passes
from under plate gl when supplemental spring / forces the face f³ back upon face f¹
and spring F withdraws from fand the motor is then in gear with the going
barrel B which is to be wound at the half hour.
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 :-
1st. In electrically or automatically wound clocks a pin wheel provided with pins
of graduated length adapted to engage with the hammer tail, said pin wheel
making a complete revolution each time the hour is struck, substantially as set
forth.
.
2nd. In electrically or automatically wound clocks a snail or stepped wheel
combined with a pivoted lever adapted to operate the arbor carrying the hammer tail
and thus regulate the number of pins with which the hammer tail will engage for any
given hour, substantially as set forth.
3rd. In electrically or automatically wound clocks a spring lever and clutch
mechanism adapted to alternately put the indicating and striking winding barrels into
engagement with the motor, substantially as set forth.
4th. The general arrangement and combination of parts forming the improved
clock substantially as hereinbefore described and as illustrated in the accompanying
drawings.
Dated this 1-4 dave of Naunton 1007
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London,
Applicant's Agent.