Improvements in and connected with Photographic Cameras,
Year: 1899

page_text: Date of Application, 28th Mar., 1899-Accepted, 27th May, 1800
Improvements in and connected with Photographic Cameras,
I, OTTO DAVID BINGER, of the Firm of Nilsson and Company, of 16 and 18,
Wardour Street, London, W., Foreign and Export Booksellers,, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
-
The invention which forms the subject of the present application relates to a
photographic apparatus which enables a number of negatives to be taken; is
exceedingly simply, inexpensive of manufacture, and perfectly portable, the
said apparatus possessing all the advantages of those known by the name of
⚫ detectives."
The following is a description of the apparatus, illustrated by the accom
panying drawings.
Fig. 1, is a sectional view of one of the parts of the apparatus.
Fig. 2, a similar view of another part of the apparatus.
Fig. 3, is a section along the line 3--3 in Fig. 4.
Fig. 4, is a plan view in section along the line 4-4 in Fig. 3, while,
Fig. 5, is a similar view to Fig. 4, the apparatus, however, being at a different
stage of working.
In carrying my invention into practice. I form the apparatus substantially of
two cylindrical pieces capable of turning one on the other.
The interior piece (Fig. 2) consists of a flat cylinder, one of the ends of which
is removed. The cylindrical surface is perforated with a row of openings at ib
symmetrically distributed over the circumference in such a manner that each
one is at the top of a regular polygon, the sides of which may be occupied by
film plates having any suitable kind of sensitive surfaces, thus forming the faces
of an oblique prism. These plates seen in horizontal projection, thus appear as
lines of a certain number of ares according to the number of the sides of the
polygon (Figs. and 5). To the piece A an external piece (Fig. 1) may be
attached having a similar form and of suitable dimensions, so that these two
pieces may form a species of box and a cover therefor, by joining together in as
exact a manner as possible whilst being capable of turning easily one on the
other.
The said second piece C bears at one point of its surface an objective or lens D
the focus of which is determined with the view of producing an image on any one
of the plates B when the focal axis d is normal to such surface. This focal axis
is in the plane of the circumference of the openings a a.
When the apparatus
is not in use, in order to prevent the admission of light in case the objective or
lens is not furnished with a shutter or cap, (the act of shutting out the light
being effected simply with the finger) it will be sufficient to suitably displace
the two parts A and C in order that the objective or lens shall not coincide with
one of the openings a.
It will be observed that the circle limiting the length of the pieces E neces-
sarily passes at a certain distance from the openings a, forming the summits of

page_text: the polygons and that at the time the impression is made, it will produce at this
point a diffusion of light which will cover the other plates. In order to avoid
this, the piece A is furnished, at each of the openings aa, with small ledges a¹
terminating tangent to the said circle and which come into juxtaposition exactly
at the extremities of the pieces which limit the luminous field.
It must be clearly understood that the apparatus which I have just described
is purely general as an illustration and only explained in order to leave no
doubt as to the nature and character of the improvements claimed by me.
The objective or lens, may or may not be furnished with a cap or shutter, and
if desirable, the lens may even be dispensed with and replaced by a small open-
ing in the usual manner. The number of sensitive surfaces is variable at will
and a pentagon or arrangement of five openings is only given as an example.
It will be observed that the dihedral angles or meeting lines of two planes of
the prism corresponding to the summits of the polygon, may have several open-
ings a, two for example, in front of which two objectives or lenses, would be
placed forming a stereoscopic image on the sensitive surface constituting the
face of the prism normal to the focal axis.
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
CLAIMS.
1. A multiple plate photographic apparatus distinguished by the sensitive
surfaces of the plates being arranged in accordance with the faces of a prism
the parallel dihedral angles or lines of meeting of two planes of which are
occupied by one or more openings and one or more objectives mounted on another
piece according to or along the line of a cylinder circumscribed to the prism
and capable of taking a position in relation to any one of the dihedral angles,
co-incident with the said openings, so as to produce images on the plate facing
normal to the focal axis, substantially as described and specified with reference
to the accompanying drawing.
2. The arrangement as a whole or in combination and in detail, of the appa-
ratus, substantially as described with reference to the accompanying drawing.
Dated this 28th day of March 1800
HUGHES & YOUNG.
55 and 56, Chancery Lane, London, W.C.,
Agents for Applicant.
HUGHES & YOUNG.
55 and 56, Chancery Lane, London, W.C.,
Agents for Applicant.