Improvements connected with Photographic Cameras.
Year: 1892

page_text: Date of Application, 28th Apr., 1892
Complete Specification Left, 21st Jan., 1893-Accepted, 18th Mar., 1893
PROVISIONAL SPECIFICATION.
Improvements connected with Photographic Cameras.
SAMUEL WHITE ROUCH of 180 Strand, London Manufacturer of Photographic
Apparatus do hereby declare the nature of this invention to be as follows:-
Instead of the narrow piece made removeable which was detachable from the
baseboard which folded over so as to protect the focussing glass as described in my
Patent (No. 1448 April 11th '78) I now make this removeable narrow piece
much broader so as to extend nearly from side to side of the base board and have
it attached thereto so as not to be removeable but to slide in and out within defined
limits by means of a rack and pinion. The front of the camera by which the lens
is carried may as in my former arrangement be attached to this travelling and
adjusting piece at either of its ends so as to provide for either a short or long
extension by the bellows body of the camera to provide for the including of
wide or narrow angles of view and whereas the former narrow adjustable travelling
board had one rack only my improved one is fitted with two one at each side thus
ensuring steadiness and parallelism of motion.
Attached to the back of the camera is a repeating back adjustment (already
known in some other cameras) by which instead of one single picture the full
dimensions of the camera two of smaller size may be taken side by side.
To provide for the increased raising and lowering of the lens in the camera the
front slides in grooves at each side and at its bottom ingress of light to the camera
is prevented by a folding gusset arrangement of leather or similar material attached
respectively to the solid front of the camera and the moveable lens-carrying front
by which arrangement light is totally excluded even when the moveable front is
considerably raised.
This camera may be used for the production of either enlarged or reduced
pictures from any negative or cliché by the following means: It is erected on an
elongated table or base and its front being removed the front of another although
not necessarily similar camera, is inserted thereon by which both are thus attached
together. This latter to permit of the facility of extension has two independent
bellows bodies each affixed to the central frame. An enlarging or reducing lens
is fixed in any convenient place in the latter camera which has an independent
ground glass on which to focus the enlarged or reduced image and the means for
holding the negatives or cliché.
After the camera has been focussed and to prevent its being thereafter removed
or disturbed a quick threaded screw acted on from the side jambs the adjustment
& renders it temporarily rigid.
S. W. ROUCH.
COMPLETE SPECIFICATION.
Improvements connected with Photographic Cameras.
I, SAMUEL WHITE ROUCH of 180, Strand, London Photographic Apparatus
what
Manufacturer do hereby declare the nature of this invention and in
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
Instead of the narrow piece made removeable which was detachable from the
base-board which folded over so as to protect the focussing glass as described in
my Patent (No. 1448 April 11th 1878), I now make this removeable narrow
piece much broader so as to extend nearly from side to side of the base-board and

page_text: have it attached thereto so as not to be removeable, but to slide in and out within
defined limits by means of a rack & pinion. The front of the camera by which
the lens is carried may, as in my former arrangement, be attached to this travelling
and adjusting piece, at either of its ends so as to provide for either a short or a
long extension by the bellows body of the camera to provide for the including of
wide or narrow angles of view and whereas the former narrow adjustable travelling
board had one rack only, my improved one is fitted with two, one at each side thus
ensuring steadiness and parallelism of motion.
Attached to the lack of the camera is a repeating back adjustment (already
known in some other cameras) by which instead of one single picture the full
dimensions of the camera, two of smaller size may be taken side by side.
To provide for the increased raising and lowering of the lens in the camera, the
front slides in grooves at each side and its bottom ingress of light to the camera is
prevented by a folding gusset arrangement of leather or similar material attached
respectively to the solid front of the camera and the moveable lens-carrying front,
by which arrangement light is totally excluded even when the moveable front is
considerably raised.
This camera may be used for the production of either enlarged or reduced
pictures from any negative or cliché by the following means. It is erected on an
elongated table or base, and its front being removed, the front of another although
not necessarily a smaller camera is inserted thereon by which both are thus attached
together. This latter to permit of facility of extension has two independent
bellows bodies each affixed to the central frame. An enlarging or reducing lens is
fixed in any convenient place in the latter camera which has an independent
ground glass on which to focus the enlarged image and the means for holding
negatives or cliché.
After the camera has been focussed and to prevent its being thereafter moved or
disturbed, a quick threaded screw acted on from the side, jambs the adjustment and
renders it temporarily rigid.
In the accompanying drawings
Figure No. 1. represents the camera with the gusset attachment (a) to the lens
front board (6) by which it is raised without allowing ingress of light to the
camera. This arrangement permits of greater scope of motion than otherwise
attainable. The pinion C actuates the sliding adjustable base-board to which the
front is attached which is not detachable from the camera.
In Figure 2. is shown the arrangement for taking either single or repeating
backs (d) in the latter case enabling two or more pictures to be taken on one plate,
suitable diaphragms being employed to enable this to be done.
f
In Figure 3 is shown the arrangement for attaching the supplementary camera
for enlarging or reducing in the position marked e. In this drawing the rear
shows a nest of frames capable of holding plates of the various dimensions in
common use fitted into a removeable holder, this being interchangeable with a
ground. glass focussing screen in a frame marked if desirable with lines corre-
sponding with the various sizes in the nest of frames.
What is claimed in this Specification as improvements upon my Patent No. 1448
dated April 11th 1878 are:-
1st. The increased width of the base-board and its not being removeable from the
camera.
2nd. The greater latitude obtained in the vertical "adjustment of the moveable
front which carries the lens.
3rd. The attachment of a supplementary and adjustable camera the front of
which is attached to the front of the camera itself.
21st January 1893.
S. W. ROUCH.