A NEW OR IMPROVED POCKET PHOTOGRAPHIC CAMERA to be as follows:
Year: 1886

page_text: We EDWIN MARTIN KNIGHT of 148 Cheapside London and GEORGE HENRY
KNIGHT of 11 Bernard St. Russell Square London, Photographer do hereby declare.
the nature of our invention for "A NEW OR IMPROVED POCKET PHOTOGRAPHIC
CAMERA to be as follows:-
"
This invention relates to a new or improved camera for photographing, specially
designed for portability and storage in the pocket, and consists of a combination of
sensative plate and a pin hole lens, the latter is closed or sealed from the light
before and after use, together with a containing and folding camera, the whole being
so designed as to fold flat or letter like in form, is produced at very small cost, and
is specially designed for storage in the pocket.
According to this our said invention we construct the sides top and bottom or
"bellows" of the camera of paper, glazed calico or other cheap light and readily
foulded material, the front being preferably of card board and in the centre of
which is a hole behind which hole and on the back of the card board forming the
front of the camera is a pin hole lens, the hole and lens being closed or covered by
an adhesive wafer or cover which can be readily removed, the rear end of the
bellows is so cut and foulded as to form a holding receptacle for the sensative plate.
The method of use is as follows. The pin hole lens being closed by the adhesive
cover or wafer and the sensative plate placed in position the whole can be pressed
flat and placed in the pocket until required. Whereon the bellows will be extended
and the cover removed from the pin hole lens and soon as exposed a sufficient time
the adhesive cover or wafer will be applied over the lens hole and the whole be
pressed flat and returned to the pocket for after " developement" at leisure-It will
be understood that a number of the improved apparatus may be compressed into
the space of a few inches.
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicants.

page_text: "
We, EDWIN MARTIN KNIGHT of 148 Cheapside, London and GEORGE HENRY
KNIGHT of 148 Cheapside aforesaid, Commercial Traveller do hereby declare the
nature of our invention for "A NEW OR IMPROVED POCKET PHOTOGRAPHIC CAMERA
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 a new or improved camera for photographing, specially
designed for portability and storage in the pocket and consists of a combination of
sensitive plate and a pin hole lens the latter is closed or sealed from light before and
after use, together with a containing and folding camera, the whole being so
designed as to fold flat or letter like in form, is produced at very small cost and is
specially designed for storage in the pocket.
According to this our said invention we construct the sides, top and bottom or
"bellows" of the camera of paper, glazed calico or other cheap, light, and readily
folded material, the front being preferably of cardboard, and in the centre of which
is a hole behind which hole and at the back of the card board forming the front of
the camera is a pin hole lens, the hole or lens being closed or covered by an
adhesive wafer or cover which can be readily removed, the rear end of the bellows
is so cut and folded as to form a holding receptacle for the sensitive plate.
The method of use is as follows; The pin hole lens being closed by the adhesive
cover or wafer, and the sensitive plate placed in position the whole can be pressed
flat and placed in the pocket till required, whereon .the bellows will be extended
and the cover removed from the pin hole lens and soon as exposed a sufficient time
the adhesive cover or wafer will be applied over the lens hole, and the whole pressed
flat and returned to the pocket for after developement at leisure.
•
It will be understood that a number of the improved apparatus may be compressed
into the space of a few inches.
Such being the nature and object of our Invention the following is a complete
description of same reference being had to the accompanying drawings forming a
part of this specification in which
•
Fig. 1 is a front view of our improved camera.
Fig. 2 is a back view of same.
Figs. 3, 4, and 5 are side views of same shewing camera or bellows closed,
partially open and fully open.
The improved camera consists of a piece of card board, wood, or other light and
cheap material 1 through which is punched the hole 2, behind and laid over the
hole 2 is a piece of tinfoil 3 which is secured in position by means of a strip of
paper 4 pasted or gummed over the tin foil. The tin foil is pierced so as to
puncture a very small hole (about 100 parts of an inch) the pin hole lens so formed
is covered so as to exclude the light until required for operating by means of a
strip of paper.
The bellows or folding part of the camera at 5 is made of paper or linen, and in
the back of the bellows is placed a sensitive plate 6 whereoD, the flaps or parts of

page_text: the bellows are folded down, and upon the back of the sensitive plate, and secured
by gum or paste, the whole is then ready for use, and may be folded into very small
space that a number of such cameras may be carried in breast pocket of a coat.
To operate-first draw out the bellows to its full extent whereon the part of
bellows 7. 7. of Fig. 4 take the straight line as at 7. 7, Fig. and the camera will
remain distended the distance between the lens and sensitive plate is the correct
focus.
Next place the camera on a wall or any convenient stand opposite the object or
view to be photographed, and then remove the paper covering from the pin hole,
then soon as the plate shall have been exposed a sufficient time 10 to 12 seconds, or
other time according to the nature of the sensitive plate, cover the pin hole lens by
its gummed paper and the operation is completed ready for developing the plate at
leisure.
The improved cameras above described are useful by reason of their extreme
portability and cheapness, and are of considerable use and value to Artists, for
outlines of landscapes,, engineers, and engravers for outline view of machinery
and generally for use by tourists as a considerable number may be carried in
little space.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that what
we claim is
The folding and expanding camera constructed as above described, and in
combination with a pin hole lens, and sensitive plate as above described, and
illustrated by annexed drawings.
Dated test davat Nawam hou
Dated the host
NADA hou
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicants.
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicants.