Improvements in Advertising Clocks.
Year: 1896

page_text: Date of Application, 21st Apr., 1896-Accepted, 23rd May, 1896
COMPLETE SPECIFICATION.
[Communicated from abroad by WARREN FOUNTAIN MILLS, of 201 Front Street,
Stevedore, and LOUIS ALEXANDER ROBERTSON, of 1308 Sacramento Street,
Broker, both in the City and County of San Francisco, State of California,
United States of America.]
Improvements in Advertising Clocks.
I, VICTOR ISIDORE FEENY, of 60 Queen Victoria Street, London, in the County
of London, Chartered Patent Agent, do hereby declare the nature of this inven
tion 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 advertising devices in which a series of
cards bearing advertising or display inscriptions is operated by means of and in
connection with a clock, so that said cards are successively exhibited.
The invention consists in the novel power transmitting and escapement mechanism
between the clock and the series of exhibition cards, as will be hereafter fully
described aud specifically claimed.
The object of the invention is to provide a simple and effective advertising clock
which is accurate in its operation and is not likely to get out of order.
Referring to the accompanying drawings-
Figure 1 is a front view of my clock.
°
Figure 2 is an elevation of the operative mechanism.
Figure 3 is a side elevation of the drum driving mechanism showing the unequal
armed bar N.
A is a frame, which in its upper portion carries the dial B of the clock, which
has playing over it the usual hands, and its lower portion is constructed as a chamber
to receive the series of advertising or display cards C, which are exhibited through
the glazed front a of said chamber.
D represents the mechanism for driving the hands of the clock, said mechanism
needing no detailed description.
E is a shaft which is driven by this clock-work mechanism, and said shaft
carries a pinion pawle which serves the purpose of a retaining and tripping
pawl.
Frepresents a spring driven mechanisin, the tendency of which is to drive a
shaft G which has upon it a cam H of a character adapted to move or vibrate
a lever I, and for this purpose said cam is here shown as consisting of a series of
elevations or points with intervening depressions in and upon which plays the end
of the lever I through the intervention of a small anti-friction roller i.
Upon this shaft is a toothed wheel J which is engaged by the retaining and
tripping pinion pawl e and as said pinion pawl rotates under the power of the clock-
work mechanism, it will, at such stated intervals as may be previously determined
in its construction and adaptation to periods of movement, let slip the toothed
wheel, so that the latter will be permitted to move the distance of a tooth, and will
be caught again by the pinion pawl thereby permitting the stated movement of the
shaft G and with it the cam H which thus raises the lever I upon one of its points
or elevations, or allows it to drop down again into one of its depressions as the
oase may be.
A second spring K, with suitable intermediate "gearing may, if desired, be
employed, to assist the force of the first spring which drives the mechanism F.

page_text: The series of advertising or
display cards C are carried in the ends of a
rotating drum & being axially mounted therein, in such a manner that as the drum
periodically partially rotates, each card will fall successively from a position above,
where it is temporarily restrained by a small finger a' in the casing A, to a position
below, so that each card exhibits in its upper position the inscription upon one side,
and in its lower position the inscription upon its other side.
This card carrying drum c is driven by means of spring-actuated mechanism
represented generally by L, and which does not need a detailed description, as it
consists simply of trains of gears with a suitable spring power arranged in manners
that are well known to those skilled in the art.
In this spring-actuated mechanism L, and as part thereof, and driven thereby,
is a shaft M on the outer end of which is a stop bar N having a retaining point n
at each end. One arm of this stop bar is longer than the other, that is to say, that
said har from its center of movement is longer to one of its ends or retaining points,
than to the other end or point.
O is a pivoted lever, one end of which is adapted to engage and successively
retain the points of the stop bar N. The other end is connected by a rod or link P
with one end of a pivoted lever Q, the other end of which is connected by a rod or
link R with the end of the lever I.
The operation of the device is as follows:
The series of display or advertising cards is under the tension of its spring-
driven mechanism L, which is held inactive by the engagement of the end of the
lever with one of the retaining points of the stop bar N.
As the clock-work mechanism D operates as heretofore described, it successively
roleases and catches by means of the pinion pawl e, the shaft G which is under
constant tension from its spring-driven mechanism F, so that the cam H alternately
raises and lowers the inner end of the lever I. At one movement it raises it, thereby
depressing its outer end, which movement, through the intervening mechanism,
depresses the engaging end of the lever O, thereby releasing the retaining point n
of the stop bar N, and permitting the spring-driven mechanism L to rotate the
drume and thereby advance it to a position in which the outermost upright card
will be thrown out of equilibrium, and will drop by gravity to a position
below.
The drum c is immediately caught by the coming around of the other point of
the stop bar N which now in its turn engages the end of the lover O, and this
engagement and position of rest continue until the shaft G above is permitted to
move again, so that the inner end of the lever I will play down into the depression
of the cam H thereby elevating the outer end of said lever, which movoment will
lift the engaging end of the lever O and again release the stop bar N for a
repetition of the movement of the card drum.
It will be seen that, on account of the construction of the actuating cam H,
which moves the lever I alternately to different positions and holds it there rigidly
until the next movement, it follows that the tripping lever O below will likewise
be moved alternately to different positions and held there. This necessitates the
different lengths of the arms of the stop bar N so that when the lever O is in one
position it will engage the longer arın of the stop bar, and when it is in its lower
position, it will engage the shorter arm of said bar thereby insuring accuracy upon
each movement, and effecting by a single movement the object desired, instead of
by a double or return movement reaching but a singlo result.
Thus the card series is operated upon both movements of the mechanism.
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 :-
1st. An advertising clock having a series of advertising or display cards with a
driving mechanism for operating them, a rotatable stop bar and pivoted lever to
detachably engage the same for permitting the periodic operation of the driving

page_text: mechanism, a driven cam and means operated by the mechanism of the clook for
periodically permitting the operation of the cam, and power transmitting mechanism
between the cam and the controlling means of the card driving mechanism.
2nd. An advertising clock having a series of advertising or display cards and a
driving mechanism for operating them, said mechanism including a rotatable shaft
provided with a stop bar having arms of different lengths, a tripping lever adapted to
Buccessively engage and release the ends of the stop bar, a driven cam with
successive elevations and depressions, and means operated by the mechanism of the
clock for periodically permitting the operation of the cam, a lever adapted to be
vibrated and held at the limits of vibration by said cam, and connections between
said vibrating lever and the tripping lever whereby the stop bar of the card driving
mechanism is engaged and released at each end successively.
Dated this 21st day of April 1896.
GEDGE & FEENY,
60 Queen Victoria Street, London, E.C., Chartered Patent Agents.