Improved Apparatus for Advertising Purposes.
Year: 1890

page_text: Date of Application, 23rd Aug., 1890
Complete Specification Left. 21st May, 1891-Accepted, 11th July, 1891
PROVISIONAL SPECIFICATION.
Improved Apparatus for Advertising Purposes.
I, FERDINAND AMAND CHAMPENOIS, of 66 Boulevard St. Michel, Paris,
France, do hereby declare the nature of this invention to be as follows:-
This invention relates to improved apparatus for advertising purposes wherein a
series of advertising placards are made to appear one after the other in front of an
opening or window. For this purpose a box or casing, having an opening or
window in front, contains a number of flat advertising placards arranged closely
one behind the other below the window, each one being free to slide upward in
vertical guides so as to appear behind the window. Cords are attached to the
upper corners of each placard, which cords pass up vertically and are then led over
guide pullies to the long arm of a double ended lever, there being a series of such
levers arranged side by side corresponding in number to that of the placard.
Opposite the short arms of the levers is a shaft rotated by clockwork carrying a
number of cams or tappets corresponding to the levers, so that by the rotation of
the shaft the cams are made to act on the levers in succession and then allow them
to descend again. At the back of the moveable placards there is a fixed placard
opposite the window, so that in the intervals between lowering a placard and raising
the next one, this will be permanently visible. In order to cause the placards to
remain a certain length of time in the raised position in front of the window, the
clockwork is provided with any suitable locking and detent mechanism acted upon
by an escapement which arrests the movement of the clockwork for a certain time
when a cam has raised a lever and placard, and before the lever is released by the
cam, which consequently holds the placard in such position until the clockwork
resumes its motion.
Dated this 23rd day of August 1890.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Apparatus for Advertising Purposes.
I, FERDINAND AMAND CHAMPENOIS, of 66 Boulevard St. Michel, Paris,
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 improved apparatus for advertising purposes wherein a
series of advertising placards are made to appear one after the other in front of an
opening or window. For this purpose a box or casing, having an opening or
window in front, contains a number of flat advertising placards arranged closely
one behind the other below the window, each one being free to slide upward in
vertical guides so as to appear behind the window. Cords are attached to the
upper corners of each placard, which cords pass up vertically and are then led over
guide pullies to the long arm of a double ended lever, there being a series of such
levers arranged side by side corresponding in number to that of the placard.
Opposite the short arms of the levers is a shaft rotated by clockwork carrying a
number of cams or tappets corresponding to the levers, so that by the rotation of
the shaft the cams are made to act on the levers in succession and then allow them
to descend again. At the back of the moveable placards there is a fixed placard
opposite the window, so that in the intervals between lowering a placard and
DB11

page_text: raising the next one, this will be permanently visible. In order to cause the
placards to remain a certain length of time in the raised position in front of the
window, the clockwork is provided with any suitable locking and detent mechanism
acted upon by an escapement which arrests the movement of the clockwork for a
certain time when a cam has raised a lever and placard, and before the lever is
released by the cam, which consequently holds the placard in such position until
the clockwork resumes its motion.
The accompanying drawing shews the construction of the above described
apparatus.
Fig. 1 is a back view shewing the actuating mechanism. Fig. 2 is a vertical
cross section, Figs. 3 and 4 are horizontal sections at different levels, Fig. 3 shewing
the arrangement of guide pullies and cords attached to the separate placards, while
Fig. 4 shews the actuating levers.
Figs. 5 and 6 shew, a side view and plan of the end of one of the tappet levers to
an enlarged scale.
Fig. 7 is a front view of the apparatus, the appearance of which may of course
be greatly varied.
The panels or placards A carrying the advertisements are actuated by cords a
attached to each of their upper corners, and can slide up and down in guides b in
order to appear successively in front of the window B.
The cords a pass over guide pullies c, d, ef and are connected in pairs to the
free ends of the levers C which rise and fall successively on the axis o under the
action of tappet lovers I fixed in a helical line on the shaft E, which is rotated by
a clockwork or other motor situated at F, the gearing being such that the tappets Ď
have an intermittent motion imparted to them by any known means. The end of
each tappet lever is forked and carries a roller g, so as to avoid friction when acting
on the tail ends of the levers C; these in being depressed by tappets are brought from
the upper angular position to the lower angular position shewn at Fig. 1, thereby
pulling the pair of cords attached to one placard so as to raise this and keep it
raised for a certain length of time, after which the tappet moves upward past the
tail of the lever, leaving the placard free to descend by gravity, while the next one
is raised in its turn.
A separate clockwork mechanism may be provided at G which, in moving
continuously is made to act with tappets at intervals upon a detent of the
clockwork so as to cause this to act with the required intermittent motion.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The herein described improved apparatus for advertising purposes wherein a
series of advertisement placards are arranged closely one beliind the other below a
window in a casing, the said placards being connected by cords passing over guide
pullies to levers actuated by a series of tappets moved by a clockwork or other
motor operating intermittently so that the placards are successively raised in front
of the window and held there for a certain length of time.
Dated this 21st day of May 1891.
ABEL & IMRAY,
Agents for the Applicant.