Improvements in Magic Lanterns for Advertising and other purposes.
Year: 1898

page_text: Date of Application, 7th Apr., 1898-Accepted, 6th Aug., 1898
COMPLETE SPECIFICATION.
Improvements in Magic Lanterns for Advertising and other purposes.
CHRISTOPHER PARSONAGE, 23, Falkland Street, Islington, Liverpool, Mechanic
and Stereotyper, 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 for its object a magic lantern, so arranged that it will adapt
itself to all kinds of uses; such as lectures, theatres, advertising etc.
The existing lanterns having a windmill motion bring the slides too close to
the light, the heat from the light melting the films of the slides.
Now, my invention is designed to obviate this, and will be better understood
by referring to the accompanying drawings of which:-
Figure 1 is a plan.
Figure 2 a side elevation.
-
I construct my slide holders A in such a manner that by hingeing them together,
they form an endless band. In the accompanying drawings I have shown my
invention with sixteen slides, each slide being about six inches square, but I do
not limit myself to any special number or size. These slides I place in an hori-
zontal position in a square frame, which forms the endless band before mentioned.
I have four square boxes B pivoted at B¹ and one of the boxes B. I extend the
rod or shaft C longer than the others, to which I fasten a toothed wheel which
engages with other similar wheels, till they reach the clockwork, or other motion
which I may use.
D is the clock arrangement D¹ weights of the clockwork, J² the
pendulum, E the lantern, F blocks for supporting or steadying the endless band
of slide holders A, or I could have rollers instead fixed on the table G for holding
the apparatus.
The mode of action is as follows:-
:-
I start my apparatus by any suitable mechanism that may be regulated to stop
for about eight seconds, to allow each slide to remain before the lens. This
arrangement can be worked by any mechanism, either clockwork, motive power,
electricity, or the like. By setting this motion working, the clock going for
24 hours, the operator can leave the lantern and attend to any other business or
change the slides during the stops of about eight seconds, thus the whole working
arrangement being automatic, and moving in an horizontal position will prevent
the lantern slides from dropping out and also keep the slides a sufficient distance
from the heat, generated from the light, by having an open space by the lens of
the lantern, and so guarded that the light will not go any way other than through
the lens.
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:
First Holders for slides being hinged tovether and forming an endless band,

page_text: Second. A square frame, with square boxes, pivoted at the four corners of the
frame, receiving the endless band of slide holders, this having an horizontal
working movement, as shown and described.
Third. The combination of clockwork, or motive power, lantern, framework, and
endless band composed of slide holders, resting on blocks or rollers, and the whole 5
fixed on a table, substantially as set forth and described.
Dated this 2nd day of April 1898.
CHRISTOPHER PARSONAGE.