Improvements in Advertising Clocks.
Year: 1898

page_text: Date of Application, 15th Jan., 1898-Accepted, 16th Apr., 1898
1
COMPLETE SPECIFICATION.
Improvements in Advertising Clocks.
I, D'ARCY VICTOR THOMAS ANDREWS LOCKE, of Tuckton, Christchurch, Hants,
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:-
This invention has reference to that class of advertising in which a number of
cards bearing advertising or other inscriptions may be simultaneously and succes-
sively exhibited by means of mechanism operated and in connection with a clock.
The object of my improved advertising clock, is to provide an effective means
by which a number of cards bearing advertising inscriptions or the like, may be
exhibited at the same time, and worked by simple mechanism reliable in its
operation.
The invention consists of the novel mechanism between the clock and the series
of display cards, by which said cards are simultaneously and successively brought
into position.
I will now proceed to describe the invention making reference to the accompany-
ing drawings.
Figure 1 is a front outside view of my clock.
Figure 2 is a front elevation of my improved operating mechanism in connection
with the ordinary mechanism of a clock.
Figure 3 is a side elevation of the card driving mechanism looking in direction
of arrow Figure 2.
Figure 4 is an enlarged plan view of the chain wheel and chain with card frames
attached.
A represents the upper portion of a clock-case, having upon it the clock dial B
with the usual fingers for indicating the time of day.
C represents the lower portion of the clock case, which is constructed as a recep-
tacle to contain the frames D in which slide the advertising or display cards,
together with the mechanism for operating same.
E is a circular or other suitable shaped glazed front, which is fitted to the lower
portion of the clock-case C, and through which are exhibited the advertising or
display cards.
Fis a spring-driven mechanism for the purpose of transmitting power through
a train of wheels represented generally by G, horizontal shaft H, and bevil gear
wheels I, to a vertical shaft J. Upon this said shaft J two chain wheels K and K¹
are fixed.
A shaft J¹ is placed at a suitable distance from shaft J depending on the number
of advertising or display cards to be exhibited, to which are attached two similar
chain wheels K2 and K³.
Upon the chain wheels K, K¹, K2, K3, teeth or lugs L are arranged, for the pur-
pose of carrying and engaging therewith the chains M and M¹.
To the links of the chains M and M' are attached the card frames I),

page_text: In some cases I may find it advisable to have more than two chains for the pur-
pose of carrying the card frames D, in such cases additional chain wheels will be
attached to the shafts J and J¹.
I may also prefer to have more than four teeth or lugs on the chain
wheels K, K1, K2, K³, for the reduction of friction.
N is a pivoted lever, one end of which is successively depressed and released by
the cam or other meaus rotated in connection with the ordinary mechanism of the
clock. The other end is connected by a rod or link P to a lever Q, one end of
which is pivoted, the other end is constructed and adapted to engage and success-
ively retain and release a catch-wheel R working in connection with aforesaid train
of wheels G, and driven by spring mechanism F.
The advertising or display cards are carried in frames D attached to the links of
the chains M and M', said frames being adapted and constructed to allow of the
cards being readily changed.
The operation of the device is as follows:-
"E'
The chains M and M¹ to which are attached the frames I holding the adver-
tising or display cards, are under the tension of the spring-driven mechanism
through the intervening mechanism, consisting of chain wheels. K, KT³¨K³
attached to vertical shafts J and J', bevil gearing I, horizontal shaft H, and a train
of wheels G, which is held inactive by the engagement of the end of the lever Q
with the catch-wheel R.
As the usual mechanism of the clock operates, the cam 0 which as heretofore
described is rotated by the said mechanism of the clock, so that the elevation or
hump formed on the cam O depresses the lever N, thus lifting the lever Q through
the rod or link P, which at the same time releases the catch-wheel R, and allows
the spring-driven mechanism F through the intervening mechanism to rotate the
shaft J, which causes the chains M and M to travel, and advance into position
the frames D containing the advertising or display cards.
The spring driven mechanism F together with the intervening mechanism is
so adapted and constructed that one revolution of the catch-wheel R allows the
shaft to rotate a quarter of a revolution, and advance the chains M and M¹ to
which are attached the card frames D containing the advertising or display cards,
a distance equal to a right angle when passing over the chain wheels.
The catch-wheel R having completed its revolution is caught by the lever Q
which has dropped back again into position ready to receive it, through the lever N
having been released from the pressure exerted on it by the elevation or hump of
the cam O, and is held inactive until the lever Q is again lifted by the pressure of
the elevation or hump of the cam O on the lever N.
It will be clearly seen by the above description and drawings accompanying
same, that four advertising or display cards may be simultaneously exhibited; two
of which will be in the same plane as the face of the clock, the other two being at
right angles to the face of the clock and seen one from each side of the clock,,thus
each card will have inscriptions or the like on both sides, which will be simul-
taneously exhibited only when the frame arrives at the central position standing
out and at right angles to the face of the clock.
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 :-
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'
1. An advertising clock having a series of advertising or display cards a number
of which may be simultaneously exhibited with the driving mechanism for opera-
ting same; a pivoted lever to engage with and successively retain and release a
catch-wheel or other means for permitting the periodic operation of the card
driving mechanism; a cam operated by the mechanism of the clock and the inter-
vening mechanism between the said cam and aforesaid pivoted lever for permitting
the periodic operation of said pivoted lever.
2. An advertising clock having a series of advertising or display cards a number

page_text: of which may be simultaneously exhibited and the driving mechanism for operating
same, said driving mechanism including a chain or chains to the links of which
are attached the frames for holding the advertising or display cards; chain wheels
fixed to rotating shafts engaging with and transmitting motion to said chains;
the intervening mechanism for transmitting power from the spring-driven
mechanism to the rotatable shaft carrying the chain wheels, said mechanism
consisting of a train of gear wheels, a horizontal shaft and bevil gear wheels; a
pivoted lever to engage with and successively retain and release a catch-wheel or
other means for permitting the periodic operation of the card driving mechanism;
a cam operated by means in connection with the mechanism of the clock; a pivoted
lever adapted to be successively depressed and released by said cam, and connec
tions between said pivoted lever operated by cam and the pivoted lever by which
the catch-wheel of the card driving mechanism is successively retained and released.
Dated this 14th day of January 1898.