Improved Portable Photographing Apparatus.
Year: 1892

page_text: Date of Application, 6th Apr., 1892
Cinta Specification left. 27th Dec., 1892-Accepted, 28th Jan., 1893
PROVISIONAL SPECIFICATION.
Improved Portable Photographing Apparatus.
I, JULES CARPENTIER, of 20, Rue Delambre, Paris, France, Engineer, do
ereby declare the nature of this invention to be as follows:-
This invention has reference to a small portable apparatus for taking photographs
which has the general configuration of a binocular opera glass, the one barrel of
which serves as the photographing camera while the other serves for sighting, the
lasses at the small ends of the barrels being the object lenses. The two barrels
re connected at their small ends by a cross frame in which is a sliding shutter by
means of which the object lens of the camera can be momentarily uncovered for
aking the photograph.
This shutter has for this purpose an opening which when in its inward position is
situated on the inner side of the object glass, while when in its outward position it
is on the outer side thereof.
In order to
The shutter is acted upon by springs tending to draw it into its inner position
and when drawn out into its outer position it is held by a trigger catch, on releasing
which with the finger, it is drawn rapidly by the springs into the inner position,
thereby momentarily exposing the sensitized plate in the camera.
prevent such momentary exposure from also taking place when drawing the shutter
outwards, there is provided a small slide on the shutter which covers the opening
thereof while the shutter is being drawn outward, until the opening has passed
beyond the object lens, when a stud on the shutter comes in contact with the end of
a slot in the frame and it is thus held while the outward motion of the shutter is
completed, whereby the opening becomes uncovered by the slide which on the
inward motion of the shutter, moves back with it, leaving the opening uncovered.
The two barrels of the apparatus are fixed on to a rectangular box in which is a
sliding drawer to which is attached a stem projecting to the outside where it has a
button by means of which the drawer can be drawn from that side of the box which
is opposite the camera barrel, to the other side.
The end of the drawer opposite that to which the rod is attached is not closed,
but from the opposite sides two small claws near the top project into the open end.
The bottom of the drawer is also open, and two slightly curved blade springs extend
from the closed end of the drawer along the
open
bottom.
In this drawer are stored a number of sensitized plates, each of which is contained
in a thin sheet metal frame, which frames separate the plates from each other.
Each of these frames carries a number marked on a recessed part thereof and the
5. number of the bottom frame in the drawer will be visible through a red eye glass
fixed in the bottom of the box opposite the sighting object glass, when the drawer
has been drawn to that side. The frame carries a light spring which presses the
securely in position.
sensitized plate against the rim of the frame and thus holds
For introducing the frames with their sensitized plates into the drawer, the bottom
0 part of the end of the box on the camera side is made as a door, and on opening
this, the frames are then slid in one on top of the other, over the before mentioned
curved springs at the bottom, which, when the box is full, press the uppermost
frame and its plate, slightly into the larger open end of the barrel which constitutes
the camera, stops being provided for preventing the entrance of the frame to an
15 extent exceeding its thickness. The door of the box being closed the apparatus is
ready for taking a photographic impression on the said plate after which the
drawer is drawn outward by its rod, whereupon the uppermost frame with its plate
being held by the stops as described, will remain in position while the others slid
from under it with the drawer, and when this is entirely withdrawn the said frame

page_text: losing its support will fall to the bottom of the box. On now pushing the drawer
back again, the said frame will pass in between the curved springs and the under-
most frame of the pile in the drawer and will thus become the bottom plate, while
the second uppermost one will at the same time be pressed into the camera as above
described, in order to be exposed at the next operation. In this way by moving
the drawer backwards and forwards after each exposure, each plate is in its turn
brought automatically into the camera, while the preceding one is brought auto-
matically to the bottom of the box.
The sighting barrel of the apparatus is by preference constructed with a concave
object glass and with the beforementioned semiconvex red eye glass in the bottom
of the box for observing the object to be photographed.
It may however have a photographic lens and a transparent screen like an
ordinary camera.
The negatives taken in the above described instrument are of course on a
miniature scale; in order to obtain therefrom positives on an enlarged scale, I
provide an apparatus of the following construction :
A rectangular box has at bottom a frame in which is a moveable plate and which
can open away from the box on hinges like a door being held closed by a spring
catch. The sensitized paper is placed upon the moveable plate and is held in
position by being pressed by the plate against projecting ledges on the box by the
closing of the door. On the upper side of the box is fixed a metal tubular
extension, the upper end of which is adapted to receive the small negative taken in
the first described apparatus. At a suitable distance from the negative the tubular
extension carries a partition in the centre of which is an object lens by means of
which an enlargement of the picture of the negative is thrown on to the sensitised
paper at bottom.
The top of the tubular extension is closed by a cap, which is removed for the
length of time required for the exposure, and is then replaced while the apparatus
is being taken to the dark room, where the sensitized paper is removed and treated
in the usual manner.
For making this apparatus more compact for carrying the tubular extension is
made removeable from the box and is fixed in position by a bayonet joint or other
fastening.
Dated this 6th day of April 1892.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Portable Photographing Apparatus.
I, JULES CARPENTIER, of 20 Rue Delambre, Paris, France, Engineer, 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:-
This invention has reference to a small portable apparatus for taking photographs.
It has the general appearance externally of a binocular opera glass, and accom-
modates a number of plates which can be successively exposed, as I shall describe
referring to the accompanying drawings.
Figs. 1, 2 and 3 represent respectively an elevation, a plan and a section of the
apparatus.
The camera portion is that part which has the lens O and the pyramidal casing P.
The other or focussing portion has the lens O¹, the pyramidal casing P¹ and a sight
hole O⁹.
The two lenses 00' are connected by a cross frame A fitted with a spring sliding
shutter C shewn in its different positions in the plans Figs. 4, 5 and 6, and in Fig. 7
in section on 1-2 of Fig. 6. The shutter C is a plate sliding in the interior of the

page_text: ame A and having a rectangular opening o which is caused by springs
apidly across the lens O, when the trigger D releases it. In order to prevent
assage of light when the shutter is drawn back a small or subsidiary shutter bis
tted within the main shutter C having a tongue c projecting through a slot of the
ain shutter C and engaged in a slot d of the frame A as indicated by dotted lines
Figs. 4 and 5. As the main shutter C is drawn back the small shutter b
ccompanies it covering the rectangular hole o as it passes the line of the lens O
nd when the tongue c comes to the end of the slot d in A, the shutter b is left
ehind during the farther movement of C. When the trigger D is released
llowing C to spring back the small shutter b accompanies it. The shutter C is of
uch length that when it has made its forward stroke it covers the lens O', this
being open only when the shutter is held by the trigger D in its back position.
In the box B is fitted a drawer T, of which Fig. 9 is a perspective view. This
rawer can be moved to and fro by a stemt so as to occupy either of the two
positions shewn respectively in Fig. 3 and Fig. 8. The inner end of the drawer is
open except that two tongues project inwards from the opposite sides, and the
bottom of the drawer. consists of two bent springs r hinged at
9.
&
The drawer is suited to hold 12 plates contained in frames one of which e is shewn
in section in Fig. 10 and in plan Fig. 11. It is made of thin sheet with a margin
embracing the photographic plate, and serves to keep these plates somewhat apart
and to give them all equal thickness. Each of the frames e bears in a recess
number which can be seen through the hole O' when it is the lowest of the pile,
and it has a light spring n pressing the glass against the margin of the frame. In
order to charge the drawer T with plates, it is pushed into the position shewn in
Fig. 3, a door f is opened, the springs are turned down, the plates are successively
put in, the springs r are turned back, and the door is closed. The springs press
the uppermost plate up against a ledge i at the base h of the pyramid.
The
On drawing back the drawer T to the position shewn in Fig. 8, while the tongues
bring back the second plate, those below accompanying it, the uppermost plate no
longer held against the ledge i falls down to the bottom as shewn at e Fig. 8.
rest of the plates are raised by the springs r so as to bring the second plate to the
top.
When the drawer is again pushed in, the plate that was originally at the top
is forced under the others, and on drawing back the drawer it is brought back as
the lowest plate, the plate which was originally second being held and dropped as
the first had been. By 12 such operations all the plates are brought in succession
under the lens O. At the top and bottom of the closed end of the drawer T are
cushions k pressed by springs x.
The focussing lens is concave in order to diminish the images, but may be
varied and arranged in combination with suitable diaphragms like the object lens.
The hole O is fitted with a convex lens of red glass to prevent access of actinic
rays.
Instead of moving the pile of plates into the focussing compartment the drawer
may be arranged as shewn in Figs. 34 and 3B. When it is drawn out, a hook b
catches the edge of the uppermost plate c and draws it out so that it drops as
5 shewn in Fig. 3B. On pushing in the drawer it forces this plate c under the pile X
of the other plates. A sliding shutter d is provided to prevent access of light when
the drawer is out.
As the negatives produced by the apparatus above described are on a miniature
scale, I obtain enlarged positives from them by means of apparatus of which Fig. 12
0 is a vertical section, and Fig. 13 is a side view partly in section, Fig. 14 being a
plan of the tube for the object glass: E is a rectangular box having a bottom
The sensitised paper being
frame F hinged to it at 9 and held up by a catch s.
placed on a board G which rests on a fillet m is pressed at its edges against a
fillet when F is closed. A tube K in which is the object glass H has the
55 negative slid into its upper part between a guide j and a light spring z.
The tube is closed by a cap shewn in dotted lines in Fig. 12. This being

page_text: removed the light is admitted by which an enlarged positive of vis produced on
the paper on G.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The photographic apparatus comprising a double compartment for containing
and changing plates, surmounted by two pyramidal casings the one provided with
object lens and serving as camera the other arranged for focussing, substantially as
.described.
2. The spring shutter with its subsidiary shutter arranged as and for the purpose
set forth.
3. The plate drawer with its tongues and springs so arranged that on moving the
drawer in the one direction, the uppermost of its plates is separated from the
others and on moving it back this plate is made to take the place of the lowest,
substantially as described.
4. The light frame for a plate with its margin and spring, substantially as
.described.
5. The apparatus for obtaining magnified positives, substantially as described
with reference to Figs. 12, 13, and 14.
Dated this 27th day of December 1892.
ABEL & IMRAY,
Agents for the Applicant.