IMPROVEMENTS IN PHOTOGRAPHIC CAMERAS
Year: 1884

page_text: S. D. M°KELLEN 18 Brown St Manchester Watch Manufacturer & Jeweller
do hereby declare the nature of my invention for IMPROVEMENTS IN PHOTOGRAPHIC
CAMERAS to be as follows :—
:
My invention relates to the photographic Camera and is intended to provide a
means whereby a horizontal swing may be obtained. By a horizontal swing I
mean an arrangement for placing one side of the camera body nearer to the lens
than the other. This movement is sometimes used when it is desired to get near
and distant parts of a view in focus on the ground glass without unduly reducing
the aperture of the lens. For this purpose I make one or both of the plates (which
in my camera carry the camera body) long enough to allow a slot or slots to be
cut through. Through these slots and screwing into the edge of the baseboard
there, are fixed strong screws with milled heads or heads of any other convenient
forin. When the screws are loosened the plates which I now call the slides will
slip forwards or backwards along the edges of the baseboard and thus carry the
sides of the camera nearer to or further from the lens. When the screws are
tightned up they bind the slides against the edges of the baseboard and the body
of the camera is thus fixed in the required position.

page_text: I, SAMUEL DUNSEITH M°KELLAN of 18 Brown St, Manchester in the County of
Lancaster Jeweller and Watch Manufacturer do hereby declare the nature of my
invention for IMPROVEMENTS IN PHOTOGRAPHIC CAMERAS and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
My invention relates to improvements in the method of attaching the camera
body to the base board and is for the purpose of affording greater facilities in
the adjustment of the camera body on the base board when in use and its position
relatively with the camera front and lens.
In applying my invention for the purpose as above described, I attach to each
side of the base board, a side plate: each one of these side plates is constructed
with a wing, to which is fixed a pin and upon. these pins the camera body is
pivotted One of these side plates may be firmly secured to one side of the base
board, by wood screws or other suitable means. The other or opposite side plate
is made longer and is formed with slotted holes running horizontally: I attach
this side plate to the side of the base board in any suitable manner, preferrably
by means of screws passed through the said slots and screwed into the base board;
These screws have milled or other suitable heads to enable them to be tightened at
discretion and the backward and forward position of this side plate can by these
means be determined according to the will of the operator: the stretcher supporting
the camera body on this side is attached to this side plate and moves with it: thus
the camera body being pivotted between these two side plates, one of which
remains stationary, and the other is moveable in a horizontal direction, the camera
body can by these means be placed out of a paralell position, one side being either
nearer to or further from the front board and lens as may be desired: If preferred
in lieu of one of the side plates being fixed by wood screws to the base board
both side plates may be formed with slotted holes working in adjustable screws,
as, herein last described.
In order that my invention may be fully understood, I now describe the
accompanying sheet of drawings reference being made to the figures and letters
marked thereon: similar letters refer to similar parts through the several views.
Fig. 1 represents part of side view of a camera body and base board and
Fig. 2 is plan of the same.
a, is the camera body, 6 the front board, c, the base board, d the bellows, e, the
stretcher supporting the camera body, f the moveable side plate, j the fixed side
plate, and g¹ the pins on the wings of the side plates fand j on and between
which the camera body a is pivotted: h the screws passing through slotted holes
by which the side plate fis attached to the base board: h¹ the milled heads on
screws: the side swing of the camera body a, and the alteration in position of
side plate f is shown in dotted lines.

page_text: 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 a photographic camera, the use of side plates suitably attached to the base
board, and between which the camera body is pivoted: one or both of such aide
plates being arranged to move forward or backward for the purpose of placing one
side of the camera body nearer to or further from the front board, substantially as
hereinbefore described.