Improved Coin-freed Apparatus for Exhibiting Pictures.
Year: 1890

page_text: Date of Application, 2nd Oct., 1890'
Complete Specification Left, 1st July, 1891-Accepted, 31st Oct., 1891
PROVISIONAL SPECIFICATION.
Improved Coin-freed Apparatus for Exhibiting Pictures.
GEORGE MILNE DUNCAN 33 Panmure Place The Meadows Edinbro' Scotland
Gentleman do hereby declare the nature of this invention to be as follows:-
An automatic machine put in motion by inserting a penny into a slot for this
purpose. The penny falling upon a clock movement releases the latter setting the
clock in motion.
To the clock is geared a revolving apparatus upon which is placed small pictures.
The clock continues this motion for 60 seconds (every time released by a penny)
causing the pictures to revolve. By the said clock movement I also short circuit
an electric lamp which is suspended over the revolving apparatus, and gives light
for viewing the pictures which are seen from a suitable place in front of the machine
which is fitted with a magnifying glass to enlarge the pictures.
Dated this First day of October 1890
GEO. MILNE DUNCAN.
COMPLETE SPECIFICATION.
Improved Coin-freed Apparatus for Exhibiting Pictures.
GEORGE MILNE DUNCAN formerly of 33 Panmure Place The Meadows,
Edinburgh now of 9 City Buildings Greenock Gentleman 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:―
An automatic machine, put in motion by inserting a penny into a slot for this
purpose the penny falling upon a clock movenient, releases the latter, setting the
clock in motion.
To the clock is geared a revolving apparatus, upon which is placed small pictures.
The clock continues this motion for sixty seconds (every time released by a penny)
causing the pictures to revolve.
By the said clock movement, I turn on a gas light, or short circuit an electric
lamp which is suspended over revolving apparatus, and gives light for viewing the
pictures, which are seen from a suitable place in front of the machine fitted with a
magnifying glass to enlarge the pictures. My invention has for its object, the
automatically exhibiting of pictures. The machines are so designed, or constructed,
as to prevent fraud being practiced by the public, that is to say the public are
prevented from viewing the pictures without, having first placed in the money
receptacle of the machine one penny.
In order that my invention may be properly understood and readily carried into
effect, I have hereunto appended drawings, on the several figures of which, corre-
sponding parts are marked with the same letters of reference.
Figure 1. is a front elevation of clock.
Figure 2. is a front elevation of drum.
Figure 3. is a drawing of coupling crank for connecting drum to clock work.
On a penny being put into the slot supplied on the outside of the machine for
that purpose the said penny falls upon tray releasing the lever band pin bb from
slot and setting the clock work in motion the slot in main wheel c being so
arranged, as to allow the clock work to travel for sixty seconds every time the lever
is released (the second notch in wheel e, in addition to that marked ca is to guide
the pin on lever b. so that it will fall into notch cregularly and without fail. It
might be done away with, but is used as a safeguard, and guide for pin on lever,
as should this pin not remain in the notch the drum will continue revolving, and
Price Bd1

page_text: run the clock work down), at the same time, wheel e, is placed in motion and being
geared direct to i (Fig. 2) or k (Fig. 3). (note i in Fig. 2 and k. in Figure 3, are
one and the same thing) causes the drum f (Fig. 2) to revolve displaying the
pictures (Fig. 2) fixed upon the said drum by means of a hinged clip, being
hinged at the back, ou a wire, running parallel with the drum, and having clips
at the front for holding the pictures-these clips are so simply constructed that the
pictures can be changed at any time in a few seconds. The drum is so arranged as
to contain three or more sets of pictures, that is the main wheel c, revolves three or
more times as fast, as the drum, so as for instance a person placing three pennies in
the machine would not view the same picture more than once. The said g and g
(Figure 2) are two pictures-the drum, of course being full. As the drum revolves
each picture becomes perpendicular, and the observer has a full view of the same.
In the drawing g the picture is perpendicular and in full view of the observer,
whilst g the picture has passed out of sight of the observer-each picture after
coming to the perpendicular falls over and go in the drawing shows the back of the
picture, the hinge being so arranged that the picture can only fall one way (to the
front).
The pictures are all hinged the same way and the disc c. must be released and
revolve three times to allow the whole of the pictures to be observed.
There are fifteen pictures hinged on the drum, and five pictures, are viewed for
cach penny put in (h (Fig. 2) here the drum is fixed in slot at side of case).
The case for the machine is suitably ornamented with a powerful magnifying
glass for enlarging the pictures. Some machines I fit with panels of glass in the
top of said machine so as to admit of daylight into machine, by which the pictures
can be viewed. Others I fit with a small gas retort, and some I fit with incandescent
electric lamps, the energy for which is supplied by dry cells (battery) or by accumu-
lators (secondary batteries). In the case of the gas and the electric light I turn
on and off, the same by means of the lever b, which turns on the gas or short circuits
an electric lamp, whenever the said lever b, is released by a penny.
When gas is used for illuminating the pictures a smaller lever is fixed from the
outlet of the gas retort, to lever b, when lever b, is released by a penny the outlet
of the gas retort is opened wider allowing more gas to flow to the burner provided
for the light. In using gas, I always have a small jet alight, when the pictures are
to be viewed I increase the light.
When electricity is used for illuminating the pictures I attach to the main portion
of the clock one end of a wire, the other end of said wire being attached to one
wire of an incandescent lamp. I also attach one end of a second wire to the lever b.
the other end of said wire, being attached to the positive pole of a battery (primary
or secondary) I then attach one end of a third wire to the negative pole of a battery
(primary or secondary) and the other end of said wire to the remaining wire of
incandescent lamp.
The notch ca being insulated the electric circuit remains open so long as the pin
on lever b. rests in notch c" but whenever the pin on lever b. is freed from the
notch ca the circuit is closed, causing the filament in the lamp to become incandescent
and illuminating the pictures.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is-
1. The exhibiting of pictures automatically, by the insertion of a penny in the slot.
2. The arrangement and gearing of picture drum and clock work, to go for a
certain period.
3. The mode of applying the light to machine by either small gas retort, or
electric lamps, by means of the lever b. as described.
Dated this 20th dow of Tuno 1001
GEORGE MILNE DUNCAN.