A swing plate or strut,
Year: 1890

page_text: Date of Application, 14th May, 1890
Complete Specification Left, 13th Feb., 1891-Accepted, 14th May, 1891
3. A swing plate or strut, C.
1. A sliding clamp plate A (Figs. 1, 2 & 3) having a slotted upright or
projecting piece, d, (Fig. 4) and a hole, e, through which the screw of a square-
headed bolt, (sliding in the grooves in the base of the camera, and protected by the
slotted plate B) (Fig. 3) projects, and which when tightened by the milled head
(Fig. 3) can be clamped at any part of the baseboard; shoulders and foot bent
at right angles as shown at h (Fig. 4), the said shoulders being pierced at i, i to
receive the pins or projecting feet of the swing plate or strut C, hereinafter to be
described.
2. A swing plate or strut, C, pivoted exactly midway between the top and
bottom of the camera body when erected, by means of a screw or rivet j
(Figs. 1, 2 & 3); and having, at some part of the aforesaid swing plate, a slot,
(Figs. 1 & 2) describing the arc of a circle with ; as centre, and clamped by means
of the milled screw 1 (Figs. 1, 2 & 3), the nut of said screw being sunk in the side
of the camera body as shown at m, (Fig. 3); and having the screw n (Fig. 3)
riveted to the lower part of the said swing plate C, and provided with the milled
head o (Fig. 3), so that the said swing plate can be clamped at any part of the
slotted upright (d, Fig. 4) of the sliding plate A, as shown at o (Figs. 1 & 2); and
having at the lower extremity of the aforesaid swing plate, two projecting pins or
feet p (Fig. 1), which, when the camera is erected, fall into the holes i, i, (Fig. 4). of
the sliding plate A, as shown in Fig. 2.
Or, instead of the slot k, in the aforesaid swing plate C, I cut a similar slot in the
camera body and clamp the swing plate to the camera body as in the former
case, by means of a milled screw passed through a hole in the swing plate C.
The action of my said invention is as follows:-
The camera is shown closed in Fig. 1. By slackening or slightly unscrewing the
milled head, o, and lifting the body of the camera, so that the screw n is raised
to the top of the slot d, the body can be placed in a vertical position; then,
by allowing the feet or projecting pins, p, of the swing plate C to fall into the
holes i, i, pierced or cut in the shoulders of the sliding plate, A, and reclamping
with the milled head, o, the body of the camera is rigidly secured in a vertical
position.
The body of the camera can be fixed on any part of the baseboard over the
lotted plate B, by loosing or slightly unscrewing the milled head g, moving

page_text: the sliding plate A to the position required, and reclamping with the milled
head g.
The side, or horizontal, swing is obtained by bringing the sliding plate A at one
side of the camera further forwards than the sliding, plate at the other side.
The vertical swing is obtained by slackening or partially unscrewing the milled
screw 1, moving the body to the angle required, and reclamping.
Having now particularly described and ascertained the nature of the said inven-
tion, and in. what manner the same is to be performed, I declare that what
I claim is
1. In a photographic camera, an improved sliding plate, having the pierced or
cut shoulders, slotted upright and. clamping screw, substantially as set forth.
2. In a photographic camera, an improved strut or swing plate, pivoted midway
between the top and bottom of the camera body, the said strut being provided
with a slot and clamping screws, and projecting pins or feet, substantially as
set forth.
C. C. VEVERS.
COMPLETE SPECIFICATION.
Improvements in Photographic Cameras.
CHARLES CHEETHAM VEVERS of 12 Market Street, Briggate, Leeds in the
County of York, Manufacturer of, and Dealer in Photographic Apparatus do
hereby declare the. nattire 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: —
My invention relates to the swing back and hinged supports of a photographic
camera, by means of which the body or back is attached to the baseboard of the
camera, the body being maintained in a rigid position when erected in any part of the
baseboard, while the back or body of the camera can be swung in either (or both)
a vertical or horizontal direction when fixed at any part of the baseboard; the axis
of the vertical swing being midway between the top and bottom of the camera body,
thus obtaining what is known as a "central swing."
To obtain these movements my invention embodies the following improvements,
for which a Patent is claimed.
(The drawings herein referred to are those accompanying the Provisional
Specification No. 748990.)
The essential parts are:-
1. A sliding clamp plate, A ;
2. A groove and slotted plate, B, in base of camera;
3: A swing plate or strut, C.
1. A sliding clamp plate, A, (Figs. 1, 2 & 3) having a slotted upright or
projecting piece d, (Fig. 4) and a hole, e, through which the screw of a square-
headed bolt (sliding in the grooves in the base of the camera, and protected by the
slotted plate B) (Fig. 3) projects, and which when tightened by the milled
head g (Fig. 3) can be clamped at any part of- the baseboard; shoulders and foot
bent at right-angles as shown at h (Fig. 4) the said shoulders being pierced¹at i. i.
to receive the pins or projecting feet of the swing plate or strut C, hereinafter to be
described.
2. A swing plate or strut, C, pivoted exactly midway between the top & bottom of
the camera body when erected, by means of a screw or rivet j, (Figs. 1,2 & 3); and
having at some part of the aforesaid swing plate, a slot, k, (Figs. 1 & 2) describing
the arc of a circle with j as centre, and clamped by means of the milled screw. I,
(Figs. 1; 2 & 3); the nut of the said screw being sunk in the side of the camera
body as shown at m (Fig. 3); and having the screw, n, (Fig. 3) riveted to the

page_text: lower part of the said swing plate C, and provided with the milled head o, (Fig. 3)
so that the said swing plate can be clamped at any part of the slotted upright
(d, Fig. 4) of the sliding plate A, as shown at o (Figs. 1 & 2); and having at the
lower extremity of the aforesaid swing plate, two projecting pins or feet p, (Fig. 1)
which, when the camera is erected, fall into the holes i, i, (Fig. 4) of the sliding
plate A, as shown in Fig. 2; or any other arrangement by which, when the camera
back is erected the aforementioned swing plate and sliding plate can be clamped
rigidly together.
Or, instead of the slot k, in the aforesaid swing plate, C, I cut a similar slot
in the camera body and clamp the swing plate to the camera body as in the
former case, by means of a milled screw passed through a hole in the swing
plate C.
The action of my said invention is as follows:-
The camera is shown closed in Fig. 1. By slackening or slightly unscrewing the
milled head o, and lifting the body of the camera so that the screw n, is raised to
the top of the slot d, the body can be placed in a vertical position; then by allowing
the feet or projecting pins, p, of the swing plate C, to fall into the holes i, i, pierced
or cut in the shoulders of the sliding plate, A, and reclamping with the milled
screw, o, the body of the camera is rigidly secured in a vertical position.
The body of the camera can be fixed on any part of the baseboard over the
slotted plate, B, by loosing or partially unscrewing the milled head, g. moving
the sliding plate A to the position required, and reclamping with the milled
screw g.
The side, or horizontal, swing is obtained by bringing the sliding plate A, at one
side of the camera further forwards than the sliding plate at the other side.
The vertical swing is obtained by slackening or partially unscrewing the milled
screw 1, moving the body to the angle required, and reclamping.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a photographic camera, an improved sliding plate, having the pierced or
cut shoulders, slotted upright and clamping screw, substantially as set forth.
2. In a photographic camera, an improved strut or swing plate, pivoted midway
between the top and bottom of the camera body, the said strut being provided
with a slot and clamping screws, and projecting pins, feet or foot, substantially as
set forth.
Π
301 1
ATA
1001