Year: 1895

page_text: Date of Application, 15.h F b., 1895
Complete Specification Left, 16th Dec., 1895-Accepted, 18th Jan., 1896
I, FREDERIC STUBBS, of Edge Gate, Osborne Road, Sheffield, in the County
of York, Metallurgical Engineer, do hereby declare the nature of this invention to
be as follows:-
My invention relates to a construction of photographic camera with a chamber
containing a number of plates and provided with means whereby I can bring any
one of these plates into the exposure chamber, and withdraw it therefrom.
For this purpose at the side of the exposure chamber I make a chamber of
substantially the same dimensions in which I place the plates side by side but
separated by thin partitions.
In the exposure chamber I provide a frame of such size as can receive any one of
the plates, having its face open and also one side open which is presented towards
the plate chamber; to the frame is connected a slide which projects outwards
through the front of the camera. When I desire to expose a plate, I draw
this slide to such a position that the mouth of the frame is presented towards the
particular plate selected, and I then, by more or less inclining the camera, cause the
plate to slide into the frame which is then moved to the focal position. After
the photograph is taken the frame is moved to face again the empty compartment,
and the plate is restored to its place. The slide is preferably graduated to shew
the position of the plate selected. and also provided with rack teeth engaged by a
spring pin so as to hold it in position while the frame is receiving or delivering a
plate. Instead of moving the frame by means of a slide pulled or pushed by hand,
it may be moved by a rack and pinion, or by screws or otherwise.
In cases where it is more convenient to have the plate chamber at the back
instead of at the side of the exposure chamber, the frame which receives the plate
when it is pushed back is acted on by a fixed tooth so as to turn it through a right
angle and so prevent it facing the objective.
In either case, the slide has attached to it a flexible web or a pair of flexible
strips which pass round guide pulleys at the angles of the exposure chamber,
so that when the frame is moved to face one of the plate compartments the web or
strips passing over the mouths of the compartments behind the frame, prevent plates
from issuing from them when the camera is inclined.
Dated thin 15th day of Doha 1905
ABEL & IMRAY,
Agents for the Applicant.
An Improvement in Photographic Cameras.
I, FREDERIC STUBBS, of Edge Gate, Osborne Road, Sheffield, in the County of
York, Metallurgical Engineer, do hereby declare the nature of this invention
and in what manner the same is to be performed to be particularly described and
0 ascertained in and by the following statement :--
My invention relates to a construction of photographic camera with a chamber

page_text: -containing a number of plates and provided with means whereby I can bring any
one of these plates into the exposure chamber and withdraw it therefrom.
For this purpose I construct the camera as I shall describe referring to the
accompanying drawings.
Fig. 1 is a sectional plan Fig. 2 is a transverse section and Fig. 3 is a longitudinal
section.
At the side of the exposure chamber A. I make a chamber B of substantially the
same dimensions, in which I place the plates P side by side. but separated by thin
partitions.
In the exposure chamber AI provide a-frame Fof-such-size-as-can receive any
one of the plates P and having its face open and also one side open which is
presented towards the plate chamber B; to the frame is connected a slidd Swhich.
projects outwards through the front of the camera: When I desire to expose
a plate, I draw the slide S to such a position that the lateral month of the frame l'
is presented-towards-the particular plate selected, and I. then by more or less
inclining the camera, cause the plate to slide into the frame F which is then moved
by the slide S to the focal position. After the photograph is taken the frame is
moved to face again the empty compartment, and ithe plate is restored to its place
by inclining the camera... The slide S is preferably graduated to shew the position
of the piate selected, and also provided with rack teeth T which are engaged by
spring: pin. C so as to hold the slide in position while the frame F is receiving or
delivering a plate..
The slide S has attached to it a flexible web W or it might be a pair of flexible-
strips which pass round guide pulleys D. at the angles of the exposure chamber; so
that when the frame is moved to face..one of the plate compartments the web
or strips passing over the mouths of the compartments which are behind the frame;
prevent plates from issuing from them when the camera is inolined, the slide-and-
web or strips covering the mouths of all the compartments except that which faces
the lateral opening of the frame F.
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 :-
In combination with a photographic-camera a chamber divided into compartments
to contain plates, a slide with a plate frame having a lateral opening and with a web
or its equivalent attached thereto, arranged and operating substantially as
described.
Dated this 16th day of December 1895
ABEL & IMRAY,
Agents for the Applicant.