Improvements in Holders for Photographic Plates or Films.
Year: 1898

page_text: Date of Application, 7th May, 1898
1000
PROVISIONAL SPECIFICATION.
Improvements in Holders for Photographic Plates or Films.
We, THE EASTMAN PHOTOGRAPHIC MATERIALS COMPANY LIMITED, of 43,
Clerkenwell Road, in the County of London, do hereby declare the nature of
this invention (which has been communicated to us from abroad by Frank
Alexander Brownell, of Rochester, in the County of Monroe and State of New
York, in the United States of America, Manufacturer,) to be as follows:-
The present invention relates to holders for photographic plates or films, and
it has for its object to improve their construction and operation so that the
plate, or film, can be securely held, the parts locked by the slide, or shutter,
and the holder, if desired, be very cheaply constructed of light material such
as paper or cardboard.
The main portion of the holder consists of a shell, or back, (preferably con-
structed of paper or cardboard, but, if desired, of metal) having flanges at opposite
sides and at one end a flange or strip, preferably of wood, and provided with
the slot for the passage of the slide or shutter which is of thin material, and
is provided with an operating handle. Arranged within the said slot in the
strip is a light excluding flap hinged at one edge by a strip of flexible material
such as cloth, extending out of the slot and glued to the front edge of the strip
the said flap being pressed against (but preferably into a recess in) one side of
the slot in the strip by means of light springs arranged in a recess in the opposite
side of the slot in the strip. At the end of the shell, or back, opposite the said
strip is hinged (preferably by cloth or leather) a plate container embodying
a way for the shutter, or slide, and a back, or cover flap, for the plate. The
said container is constructed of a frame preferably of wood, having the sides of
or about, the same height as the side flanges of the shell or back, and the end
next the strip on the said shell or back is thinner. The outer face of the con-
tainer is composed of an open frame, preferably of cardboard, secured within
the first named frame of the container and within this second frame is arranged
an inner frame also preferably of cardboard and preferably continued over the
thin end of the container frame and around at the back of the said frame, con-
stituting the back cover flap for the container, this flap being unsecured to the
underside of the thin end of the container frame and rendered flexible at such
a part that the said back flap is practically hinged to the forward end of the
wooden frame. The frames which are within the container frame as aforesaid are
separated slightly and form a way for the slide, or shutter, between them the
said way being in line with the slot in the strip of the shell or back so that,
when the holder is closed, and the slide moved in, the parts of the holder are
locked by the slide.
The plate or film may be inserted in the holder by withdrawing the slide and
opening it, placing the plate or film inside the container frame and against the
inner frame, then closing down the cover over it, folding the container and plate
against the back and inserting the slide, which locks the parts. In using the

page_text: holder it is not necessary to draw the slide out of the container, but simply far
enough to leave an unobstructed opening for the exposure of the plate.
In order to hold the plate and prevent if from sliding in the container, if it
does not accurately fit, the cover flap is provided with a corrugation or corru-
gations, which will hold the plate or film more or less firmly in position against
the inner frame.
The hereindescribed holder is particularly adapted to be constructed of paper,
cardboard, vulcanized fibre, or other like material but metal can be used and
the parts are so simple that they may be cut out with dies and readily put
together and secured by glue or paste.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
improvements in Holders for Photographic Plates or Films.
We, THE EASTMAN PHOTOGRAPHIC MATERIALS COMPANY LIMITED, of 43
and 45, Clerkenwell Road, in the County of London, do hereby declare the
nature of this invention, (which has been communicated to us from abroad by
Frank Alexander Brownell, of Rochester, in the County of Monroe, and State
of New York, in the United States of America, Manufacturer,) and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
This invention relates to holders for photographic plates, or films, and it has
for its object to improve their construction and operation so that the plate, or
film, can be securely held, the parts locked by the slide, or shutter; and the
holder if desired be very cheaply constructed of light material, such as paper,
or cardboard. We will describe the invention with reference to the accompanying
drawing,-
Figure 1 is a perspective view of a plate, or film, holder constructed in accord-
ance with this invention.
Figure 2 is a perspective view of the said holder when opened and the slide,
or shutter, removed. Figure 3 is a longitudinal section. Figure 4 a cross section.
Figure 5 is a detail section drawn to a larger scale of the light excluding flap..
Figure 6 is a part cross section on the line a- of Figure also drawn to a
larger scale.
Similar reference numerals indicate similar parts in the several figures.
The main portion of the holder consists of a back 1 (preferably made of paper
or cardboard, but if desired it may be of metal) having at opposite sides the
flanges 2, and at one end the flange, or strip, 3, preferably of wood, and provided
with the slot 4* for the passage of the slide, or shutter, 4 and with a handle 5.
Arranged within the said slot 4* in the strip 3 is a light excluding flap 6 hinged
at one edge by a strip of flexible material 7 (see Figure 5) such as cloth,
extending out of the slot and cemented to the front edge of the strip 3 the said
flap being pressed against (and preferably into a recess 8 in) the strip 3, at
one side of the slot therein by means of light springs 9 arranged in the recess 15
in the opposite side of the slot in the strip 3 as shewn particularly in Figure 6.
At the end of the back 1 opposite the strip 3 is hinged by the strip 10 prefer-
ably of cloth, or leather, the plate container, or receiver, which embodies a way
for the shutter, or slide, 4, and a back or cover flap 11, for the plate, or film, 12,
as shewn. The said container or receiver is, in the example illustrated, con-
structed of the frame 13, preferably of wood, having the sides of, or about, the

page_text: same height as the side flanges 2 of the back 1 and the end next the strip 3 is
thinner, as shewn, at 15*. The outer face of the container or receiver is com-
posed of an open frame 16, preferably of cardboard, secured to the frame 13 and
within this is arranged the inner frame 17 also of cardboard and preferably
continued over the thin end 15* of the frame 13 and around to the back of said
frame, constituting the back or cover flap 11 for the container, as shewn par-
ticularly in Figure 3, this flap being unsecured to the underside of the end 15*
and rendered flexible at 18, so that the said flap is hinged to the forward end
of the wooden frame. The frames 16 and 17 are separated slightly and form a
way for the slide, or shutter, 4 between them the said way being in line with
the slot 4 in the strip 3, so that when the holder is closed and the slide moved
in, the parts of the holder are locked by the slide.
The plate, or film, 12, may be inserted in the holder by withdrawing the slide
and opening it, as shewn in Figure 2, placing the plate, or filu, inside the
frame 13, and against the frame 17, then closing down the back, or cover flap 11
over it, folding the container and plate or film against the back 1 and inserting
the slide, which locks the parts. In using the holder it is not necessary to
draw the slide entirely out of the container, but simply far enough to leave
an unobstructed opening for the exposure of the plate or film.
In order to hold the plate or film and prevent it from sliding in the container,
if it does not accurately fit, the cover flap 11 is provided with a corrugation or
corrugations 20, as shewn, which will hold the plate, or film, properly in position
against the frame 17.
The herein-described holder is particularly adapted to be constructed of paper,
cardboard, vulcanized fibre, or other sheet material, but it will be understood
that metal can be used and the parts are so simplified that they may be cut
out with dies and readily put together and secured by glue, or paste.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. In a holder, for photographic plates or films the combination with the
back having the slotted strip at one end and the light excluding flap therein,
of the plate or film container or receiver hinged to the opposite end of the back,
open at the front, and having the way for the slide or shutter and the hinged
back or cover flap, and the slide, or shutter, operating in the said strip and
container, substantially as herein before described and illustrated in the
accompanying drawing.
2. In a holder for photographic plates or films the combination with the back
having the slotted strip at one end, of the plate or film container or receiver
open at the front and hinged to the opposite end of the back, and having the
ways for the slide or shutter and the back or cover flap hinged to the rear side
of the outer free end of the container or receiver and adapted to fold beneath it,
and the slide, or shutter, co-operating with the back and container, substantially
as herein before described and illustrated in the accompanying drawing.
3. In a holder for photographic plates or films, the combination with the back,
having the slotted strip at one end, of the plate or film container or receiver
open at the front and hinged to the opposite end of the back, and having the
way for the slide, or shutter, and the back or cover flap having a corrugation
or corrugations therein and hinged to the back of the container, and the slide,
or shutter, co-operating with the back and container, substantially as herein-
before described and illustrated in the accompanying drawing.
4. In a holder for photographic plates or films, the combination with the back,
having the strip at the end, of the plate or film container or receiver hinged to
the back, and consisting of the frames 13, 16 and 17 and the back cover flap 11,
and a slide or shutter, substantially as hereinbefore described and illustrated
in the accompanying drawing.

page_text: 5. In a holder, for photographic plates or films, the combination with the
strip having the passage for the slide, or shutter, and the recesses above and
below it, of the flap 6, the flexible hinge strip 7 secured to the strip 3, and
the springs 9, substantially as herein before described and illustrated in the
accompanying drawings.
6. The arrangement and combination of parts constituting the holder for
photographic plates, or films, substantially as herein before described and illus-
trated in the accompanying drawings.
Dalad this
1000
JOHNSONS & WILLCOX,
47, Lincolns Inn Fields, London, W.C., Agents.