Photographic Camera.
Year: 1891

page_text: Date of Application, 21st Sept., 1891-Accepted, 24th Oct., 1891
COMPLETE SPECIFICATION.
Photographic Camera.
I, DANIEL JAMES TAPLEY, of Newton, in the County of Queens and State
of New York, in the United States of America, Photographer, 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:-
My invention shows a method of mounting a view lens in the front board of a set
focus camera without the use of an expensive metal mount, a simple and effective
combined exposing shutter and diaphragm, and a protective carrying case for the
camera so constructed as to act as sun screen during exposure.
And I accomplish
these objects by the construction illustrated in the accompanying drawings where
Figure 1 shows the camera enclosed in the carrying case.
Figure 2 shows the carrying case opened, with its flaps in position to act as a
sun screen.
Figure 3 is a detail view of the diaphragm exposing shutter, the same being in
position for an exposure.
Figure 4 is a sectional view through X, X, Figure 3 showing the method of
mounting the lens.
Figure 5 shows the shutter in position to cover the lens, and
Figure 6 shows a modified form of the shutter with two diaphragm openings.
The combined exposing shutter and diaphragm consists of a leaf of metal A,
pivoted at a, on the front board B in such a position as to swing in front of the lens
opening i. It is something more than twice the width of the lens opening i, and
has drilled in it a diaphragm opening e, of a size suitable for the lens used, at a
point midway between the centre and one edge, and in a line with the lens opening
horizontally. The other half of the shutter is left solid to act as a cap in closing
the lens. The movement of the shutter is limited by the radial slot o, and pin o,
so that when the shutter is at one extremity of its movement, as in Figure 3, the*
diaphragm opening will be opposite the centre of the lens, and at the other limit,
Figure 5, the lens will be entirely covered by the solid portion of the shutter.
In Figure 6 is shown an enlarged form of the shutter provided with two
diaphragms, e, e', of different sizes, one on each side of a central solid portion,
which acts as the cap.
In this form of shutter the motion in either direction may
be regulated by a swinging stop as shown at s, which acts as a guide in closing the
lens after an exposure with the opening e.
When it is desired to use the other
diaphragm, e', this stop is turned up out of the way as shown in the dotted lines.
If desired a second stop might be placed at the other side of the shutter.
In Figure 4 is shown the method of mounting the lens, which is of the form
known as a view lens, or a single combination. As the diaphragm e, in the
shutter A, rests directly upon the outer face of the front board B the lens must be
placed at the proper distance behind it, and for this purpose, as the front board is
usually quite thin to save weight, I secure on the back of the front board B a
block of wood C of sufficient thickness, and through the two is bored the hole i of
suitable diameter for the lens used. In this block is cut a rabbet to receive the
lens L and to hold it at the required distance from the diaphragm e, and the lens is
secured in place by the ring of metal r, screwed to the block C.
The carrying case is illustrated in Figures 1 and 2 and is made of leather or any
other suitable stiff material. The opening is formed by four flaps, k, l, m, n, one
attached to each side of the case at one end, and the case is closed by folding down
these flaps, one overlapping the other, and securing the two outside ones, k, m, by
the clasp P. When an exposure is to be made the flaps are opened out and the
camera is drawn part way out, as shown in Figure 2. Thus arranged the camera
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page_text: holds the flaps extended as continuations of the sides, and in this position they form
shields which prevent the direct rays of the sun from entering the lens. The
exposure may now be made by operating the shutter by hand.
The case is provided with a handle H for carrying it, and it may also be fitted
with a suitable shoulder strap if desired.
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:
1. The lens block C, supplementing the tubular opening i in the camera front,
forming a lens seat and section of lens tube, as described.
2. The swinging or sliding cap and diaphragm A, in combination with the lens
tube and lens L, as described.
3. The outer case combining the functions of satchel and light shield in com-
bination with the lens and exposing device as described.
Dated this 10th day of September 1891.
DANIEL JAMES TAPLEY.