Improvements in Chrono-photographic Apparatus.
Year: 1896

page_text: Improvements in Chrono-photographic Apparatus.
I, MARIE JOSEPH HENRI JOLY, of 95 Boulevard Beaumarchais, Paris in the
Republic of France, Engineer, do hereby declare the nature of this invention
to be as follows:-
The present invention relates to improvements in chrono-photographic apparatus.
The said apparatus comprises two driving rollers furnished with projections upon
their peripheries.
The sensitised band or film is wound upon a bobbin above the upper driving
roller and forms a fold on leaving this bobbin, then passes over the upper driving
roller behind the dark chamber and lastly over the lower driving roller which
receives intermittent movement and causes the movement of the film by jerks, as
is necessary for the proper operation of the apparatus.
The driving shaft can be actuated by means of a crank. Upon the said shaft
is keyed a toothed wheel which gears with another wheel mounted upon the shaft
of the upper driving roller. The shaft of the said upper driving roller is also
geared and transmits its motion to a shaft upon which are keyed:
(1) A bevel pinion which engages with another bevel pinion mounted directly
upon the shaft of the shutter.
(2) A disc, to which is pivoted one end of a rod the other end of which is
connected to a small crank carrying a pawl. This pawl will act upon a ratchet
wheel mounted upon the shaft of the lower driving wheel.
From the foregoing it will be seen that if I impart to the driving shaft a
continuous rotary movement the upper driving roller and the shutter will receive
a continuous movement, but the lower driving roller will turn intermittently.
The apparatus will therefore operate in such a manner that the film will be
stationary during the exposure and during the projection and the traction necessary
for the unwinding of the film will be effected upon a fold of the latter and not upon
the magazine roller itself, this condition being necessary for the proper operation
of the apparatus.
I sometimes arrange for the projection of positives upon screens, and for com-
bining the aforesaid apparatus with a phonograph operating in concordance with

page_text: the projecting apparatus in such a manner that the spectators have at the same
time the illusion of movement and that of speech.
Dated this 26th day of September 1896.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in Chrono-photographic Apparatus.
I, MARIE JOSEPII HENRI JOLY, of 95 Boulevard Beaumarchais, Paris in the
Republic of France, Engineer, 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:-
The present invention relates to improvements in chrono-photographic apparatus.
In order that the following explanations may be rendered as clear as possible I
have represented by way of example in the accompanying drawings a chrono-photo-
graphic apparatus modified and provided with the improvements which form the
subject of the present invention.
Figure 1 is a rear view of the apparatus.
Figure 2 is a transverse section of the same.
Figure 3 shows a side view.
Figure 4 is a plan showing the mode of action upon the shutter.
Figures 5 and 6 show details hereinafter referred to.
The said apparatus comprises two driving rollers furnished with projections upon
their peripheries.
The sensitised band or film is wound upon a bobbin A¹ above the upper driving
roller and forms a fold on leaving this bobbin, then passes over the upper driving
roller A behind the dark chamber A" and lastly over the lower driving roller B
which receives an intermittent movement and causes a corresponding movement
of the film, as is necessary for the proper operation of the apparatus.
The driving shaft G can be actuated by means of a crank fixed upon its extremity
not represented in the drawing. Upon the said shaft is keyed a toothed wheel H
which gears with another wheel H¹ mounted upon the shaft h of the upper driving
roller A. On the shaft of the said upper driving roller is mounted a toothed
wheel h¹ which transmits its motion to a pinion a mounted upon the shaft E¹.
On this intermediate shaft E¹ are keyed. (1) A bevel pinion e which engages
with another bevel pinion el mounted directly upon the shaft of the shutter P.
(2) A disc E to which is pivoted one end of a rod. D) the other end of which is
connected to a small crank el carrying a pawl. This pawl will act upon a ratchet
wheel mounted upon the shaft at the extremity of which is fixed the driving
wheel B.
From the foregoing it will be seen that if I impart to the driving shaft Ga
continuous rotary movement the upper driving roller A and the shutter will
receive a continuous movement, but the lower driving roller B will turn inter-
mittently under the action of the disc E the rod D, the pawl c and the ratchet
wheel c. The apparatus will therefore operate in such a manner that the film will
be stationary during the exposure and during the projection and the traction
ecessary for the unwinding of the film will be effected upon a fold of the latter
and not upon the magazine roller itself, this condition being necessary for the
proper operation of the apparatus.
I sometimes arrange for the projection of positives upon screens, and for com-

page_text: bining the aforesaid apparatus with a phonograph operating in concordance with
the projecting apparatus in such a manner that the spectators have at the same
time the illusion of movement and that of speech.
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:-
The above described chrono-photographic apparatus the special characteristic
features of which consists in the combination of two driving rollers for the film
one of which rollers, placed before the entrance of the film into the dark chamber,
receives a continuous rotary motion, whilst the other, placed behind the discharge
of the film from the dark chamber, receives an intermittent rotary motion through
the medium of a disc or plate fixed to the driving shaft; the said disc or plate
being connected by one of the points of its circumference to a rod D the lower part
of which is jointed to a small crank (c) carrying a pawl which acts upon a ratchet
wheel (c) mounted on the shaft C, at the end of which the second driving roller
with intermittent movement is fixed.
Dated this 25th day of June 1897
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.