An Improved Device for Automatically Opening and Closing a Sight Hole in connection with Apparatus for Exhibiting Animated Pictures.
Year: 1899

page_text: Date of Application, 5th June, 1899-Accepted, 5th Aug., 1899
COMPLETE SPECIFICATION.
An Improved Device for Automatically Opening and Closing a Sight
Hole in connection with Apparatus for Exhibiting Animated
Pictures.
I, ERNST MALKE, of No. 38, Braustrasse, Leipsic-Gohlis, Kingdom of Saxony,
German Empire, Engineer, do hereby declare the nature of my said invention
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:—
The present invention relates to that class of device for producing animated
pictures by brushing over a block containing a series of leaves having the con-
secutive positions of the objects printed or otherwise produced thereon, so that
as the leaves are turned over rapidly one after the other, the effect of an animated
picture is obtained. The invention consists in providing a peep hole having the
usual magnifying glasses, which are directed to the leaf, with a shutter pivotally
suspended, and adapted to be removed to uncover the glass at the moment the
leaves are turned and at the end of the block to allow the said glass to be again
covered.
The invention consists of the details of construction hereinafter set forth and
pointed out in the claim.
In order to render the present specification easily intelligible reference is had
to the accompanying drawing in which similar letters of reference denote similar
parts throughout the several views:―
Fig. 1 is a sectional side elevation of the apparatus, Fig. 2 a horizontal section
on line M-M of Figure 1 and Fig. 3 a vertical cross section on line N-N of
Figure 1.
The effect of animated pictures is produced by passing the block E¹ having
the free ends of the leaves turned upwardly, underneath the spring pressed
lever E, which yields when the block is passing underneath it and takes up the
position indicated in dotted lines at Figure 1, thus brushing over the free ends
of the leaves of the block and exposing the pictures thereon consecutively and
rapidly to the eye. The funnel B is provided with the usual glass A and is
suitably supported so that the person looking through the glass will see the
pictures as they are brushed past the lever E. As will be seen from Fig. 2 this
lever is spring pressed normally into the vertical position and will be raised to
the angle about as shown at Figure I in dotted lines as the block E' is passed
underneath it, to reveal the pictures in rapid succession. The lever E is fast to
its pivot F which also carries fast thereon a lever G. A shutter C is suspended
on an arm C¹ at the pivot D and the lower end of the arm C has a laterally
extending pin H which rests on the end of the lever G.
The device operates in the following manner:
Immediately the front leaf of the block E contacts with the operating lever E,
the latter will be pushed up to about the extent shown at Figure 1, this raises
the lever G which also takes up the lever C' and shutter C with it, thus exposing the
pictures to view through the funnel B. Immediately the last leaf has passed

page_text: the lever E the same is returned to its vertical position by means of its spring
and the shutter falls down obscuring the view, so that the glass will only be
open whilst the animated picture is exposed to view and will be immediately
closed afterwards.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what
I claim is:-
-
1: A device for automatically opening a peep hole during the exhibition of
an animated picture, which consists of the combination with the spring pressed
operating lever E for the leaves of the picture block, of a horizontally or approxi-
mately horizontally extending lever Grand a pivotally suspended shutter for the
peep hole, said lever G being adapted to raise the shutter as soon as the picture
block contacts with the operating lever E substantially as described.
2: A device for automatically opening and closing a peep hole to reveal
animated pictures consisting of a block of leaves having their free ends turned
upwardly and a spring pressed lever to operate the same as specified, a pivotally
suspended shutter to fall by gravity down in front of the peep hole and means
in connection with the said operating lever to raise the shutter as soon as the
block comes into contact with the said operating lever substantially as described.
Dated this 5th day of June 1899.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.