Improvements in Advertising Clocks and other Apparatus used for Advertising Purposes.
Year: 1889

page_text: Date of Application, 9th Mar., 1889
Complete Specification Left, 9th Dec., 1889-Accepted, 22nd Feb., 1890.
Improvements in Advertising Clocks and other Apparatus used for
Advertising Purposes.
WILLIAM DAVID RAMSAY 1 Princes Mansions, Victoria Street Westminster
Engineer CECIL WALKER 1 Princes Mansions Victoria Street Westminster Engineer
do hereby declare the nature of this invention to be as follows:-
1st to do away with the division in advertising sheet as in our Patent No. 2424,.
1887 by means of a moveable rod working from clock and connected with hands on
dial.
2nd alterations in mechanism to work automatically by means of weights coming
in contact with pedals or levers the said weights at the same time working advertise-
ments at intervals.
The heavy weight is wound up by an electric motor (or other motive power) while
the light weight is in operation & the light weight is wound up by the heavy weight
when the latter is in operation.
The current of electricity is regulated by means of a switch that the weight
displaces at the required height and coming down replaces it, the current at that time
being disconnected by means of a shifting arm.
This arm carries a wheel which runs in other wheels according to which weight is
in operation & is shifted up by releasing a lever with a weight attached (connected
with one of the pedals as previously described) to it, the arm also has a weight at one
end running over a pulley & pulls it up..
To pull the arm & wheel down the weight attached to the arm is lifted by means of
a lever (attached to another pedal as previously mentioned) the arm drops at
once & is assisted & kept from rising by the lever with weight attached as described -
above.
The current of electricity is disconnected, when the arm is up as the beavy weight is
then working the advertisements.
We have a ratchet click attached to one wheel working from motor to prevent
the weight from running down before the arm is lifted after the current has been
switched off.
If necessary we use more than one set of batteries for winding, as. the weight rises
it comes in contact with a switch having a brass arm with two prongs at one end &
held at the other end by a spring, it is dislodged from the spring to cut the current
but rests on another part of the switch attached to a separate wire & again
connects the current to another set of batteries, this can be repeated any number of
times.
For regulating the advertisements we have an insulating piece attached to one of
the wheels of a clock & every time it revolves once it connects a current of electricity
which lifts a lever by means of coils & magnets & releases the roller.
The lever has a weight or spring attached to it for the purpose of sending it back
in its place after the current is broken, a disc is attached to the top roller having on it.
a pin in an upright position with a moveable shoulder which the lever rests against
& facilitates lifting.
We also switch the whole of the batteries off for a certain number of hours by
mechanism working from the clock.
We have another principle of working the rollers, viz. by allowing the current to
wind the advertisements and a weight up through a train of wheels, one attached to a
moveable arm & disconnecting the current by dropping the arm into a slot & allowing
the weight to pull advertisements down.

page_text: A star wheel with a nose piece attached moves the slot to allow the arm to either
rest on the outside or fall into it.
The star wheel is regulated by a spring & revolved by means of a pin projecting
from another wheel.
Both these principles can be used without having a dial face or other indicator
screen in front of advertising sheet.
That the Oil
1 1000.
COMPLETE SPECIFICATION.
Improvements in Advertising Clocks and other Apparatus used for
Advertising Purposes.
We WILLIAM DAVID RAMSAY and CECIL WALKER both of 1 Princes Mansions,
Victoria Street, London, Engineers do hereby declare the nature of our 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 affixing in or to a clock a series of advertisements movable
from one roller to another at intervals, the movement being controlled electrically at
fixed periods from an appliance actuated from the clock mechanism which completes
electric circuit, the advertisements being behind the dial and arranged upon a single
sheet of paper or canvas.
Our invention will be understood by the annexed drawings in which at Figure 1
we show a face view of the mechanism which is fitted in the side of a clock case.
Figure 2 is an edge view of the mechanism and front of clock case behind where
the dial is situated.
In connection with ordinary clock work we cause a wheel A to rotate and by means
of a bevil or worm gear connected therewith and with a vertical rod B we cause the
minute C and hour hand D of a clock to be actuated by other gear contained in a
frame E, said frame being attached to a plate of glass F which, with the exception of
the figures being painted thereon is perfectly plain, so as to offer no obstruction to
the advertisements passing up or down directly behind it.
The arbor of the wheel A carries a cam G of insulating material and at each com-
plete revolution comes in contact with and raises a spring H which it puts into contact
momentarily with another spring I to complete electric circuit from the battery Jalso
to magnetic coils K drawing an armature L to them, the opposite end M of said
armature having previously rested against a stud N of a disc P. This disc P is
connected with the upper roller Q on which advertisements can be wound, said roller Q
being then at liberty to rotate under the action of a descending weight R, the cord S
of which gives off from a reel T until the disc P completes its revolution, the current
which attracted L having in the meantime been broken so that the opposite end of the
armature serves to stop further rotation and holds the advertisement then exposed
until the insulated paul G has again closed the circuit by putting the springs H. I.
into contact for a repetition of the operation. The length of the time which each
advertisement may be exposed will be determined by the period at which the insulated
piece G is arranged for raising the spring H.
The weight R is guided in its descent and when it arrives at the bottom of its travel
it bears upon a pedal U which has a cord V attached to it for pulling down a lever W
the opposite end of which at X is attached.to another cord Y having a weight Z on
its lower end.
The lever W lifts the cord Y and permits an arm a to drop, causing the wheel b
to engage in the pinion c said arm a then coming in contact with spring d for com-
pleting circuit through the wires e. f. with a battery g for driving the motor h. During
this operation the cord i of the lower rollor j has been wound upon the reel k. the
smaller weight being then at the top of its course near the guide rollers m. m.

page_text: i
The small weight now begins to descend and the cam G completing the circuit
round the electro magnets K for releasing the disc P which then rotates in the opposite
direction previously rotated permits j to take up the advertisement that has been
exposed behind the dial glass F this operation is repeated until the small weight l
bears upon the pedal n and by depressing said pedal, the cord p connected to it, pulls
the lever q over into the position shown at Figure 1. permitting the arm a to rise and
with it the wheel b to gear with the wheel r and out of gear with the pinion c. All
the advertisements that were on Q are now on ; and the larger weight R which has
been wound up, as previously described, by the motor, now begins to descend and
through the completion of the circuit through wires s, s, and battery J by the touch
of G. H. I. the disc P and roller Q are permitted to reverse their rotation and recharge
the roller with advertisements, which it takes from j the cord i of the small weight/
being wound on the reel k for a repeat of the operations above described.
When the weight R is drawn up by the motor a pin t upon one of its faces engages
between two prongs of a swivel plate u and by contact with one of them it disengages
its opposite end from a spring which breaks electric circuit with the battery g and
stops the motor h. When this occurs the little weight is descending and when it
bears on the pedal n, the cord p and lever q are acted upon, which permits the arm a
to rise under the action of its weight w and ungears the wheel & from the pinion c
and breaks contact with d. As the larger weight descends it retires from the prong,
previously acted on, to the other prong and causes the swivel plate u to turn, for its
tail end to come into contact with the spring v which remains in this condition until
the larger weight R bears upon its pedal U for drawing on the lever W which
allows a to drop on d to close the circuit. Thus, so long as the clock is kept going
and the batteries charged, so will the advertisements be taken from the roller to j
and from to Q alternately at intervals of time determined by the arrangement of
the paul G for completing circuits through springs H. I.
Figure 3 is an elevation of the clock in its complete form.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. Affixing in or to a clock, a series of advertisements movable from one roller
to another at intervals, the movement being controlled electrically at fixed periods
from an appliance actuated from the clock mechanism which completes electric
circuit, the advertisements being behind the dial and arranged upon a single sheet
of paper or canvas in the manner substantially as described.
2. Actuating the dial hands mechanisin of a clock from the front of the clock
dial substantially in the manner described so that a single strip or width of paper
or canvas arranged behind the same can be intermittently moved by weights
released through the intermediation of an electric current, such current being
closed automatically from clock mechanism by the means or appliances shown at
Figures 1 and 2 of the annexed drawings.
3. The arrangement of appliances shown on the annexed drawings Figures 1
and 2 by which an automatic change of the giving off and taking on rollers, is
effected, on the completion of each series of advertisements exposed, for the
repetition in the reverse order as described.
The 0th day of Damontre 1980
H. GARDNER,
*166, Fleet Street, London, Agent for the said W. D. Ramsay & C. Walker.