IMPROVEMENT IN CAMERAS FOR PHOTOGRAPHIC PURPOSES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
S. D. McKELLEN 18 Brown St. Manchester Watch Manufacturer & Jeweller do
hereby declaro the nature of my invention for AN IMPROVEMENT IN CAMERAS
FOR PHOTOGRAPHIC PURPOSES to bo as follows:-
My invention relates to that part of the Camera which is called the front board
& which usually has the bellows attached to it & carries the lens. In ordinary
folding cameras I make the front board to swing between two upright sides as a
toilet glass swings between its standards, two screws with large milled heads act
as pivots and when screwed home bind the front board at any reqired inclination.
When a camera has a fork and baseboard of the form used in the Kinnear
Camera, I make the fork act as the upright supports and swivel the front board
between them. This enables the front board & fork to fold down into the recess in
the base board and much space is enved.

page_text: I, SAMUEL DUNSEITH MCKELLEN of 18 Brown Street, Manchester in the County
of Lancaster Watch Manufacturer and Jeweller do hereby declare the nature of my
invention for AN IMPROVEMENT IN CAMERAS FOR PHOTOGRAPHIC PURPOSES and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:–
=
My invention relates to that part of a camera which is called the front board
usually having the bellows attached to it and carrying the lens, and consists of an
arrangement of parts whereby the said front board is more conveniently placed
and retained at any required angle, and folded in reduced space when the camera
is required to be closed.
My invention may be applied to an ordinary folding camera, by constructing the
front board so that it is suspended-between two upright sides, and oscillates as a
toilet glass oscillates between its standards, by means of two screws placed one on
either side which act as pivots, and are formed with milled or other suitable beads,
and which when screwed home firmnly secure the front board at any required angle.
My invention however is more especially applicable to a camera that has a fork
and baseboard and stretchers such as are used in a "Kinnear" Camera.
In applying my invention to a camera of the latter description I secure the front
board to the fork and also to the stretchers by means of two screws, formed with
milled or other suitable heads, and termed set screws.
I place these screws one on either sido, and preferably equidistant between the
top and bottom of the front board; attach the lower part of the fork to the
slide of the camera baseboard by hinges or other suitable means to enable it to
fold upon or within the said slide; the front board oscillates between the jaws of
the said fork, on the screws as above described which act as pivots, as a toilet glass
swings between its standards, and can be placed at any required angle, and firmly
retained in such position by the screws with which it is secured to the fork being.
tightly screwed.
':
When it is required to fold down the front board for the purpose of closing the
camera I slack the screws by which it is secured on either side to the fork and
stretchors, thereby allowing the screws whilo retaining their positions in the front
board and fork to slide down clongated grooves or openings in the stretchers.
The position of the front board relatively with the fork and stretchers is thus
reversed the top of board coming over to the position previously occupied by the
bottom, and the bottom going in towards the camera body, and it can thus be
folded down within the space or recess in the base board, the fork and stretchers
remaining attached but lying by the side and flush with the surface of the front
board, the whole movement being performed without detaching any part; the
camera can then bo closed by being shut in the same way as a book.
In order that my invention may be fully understood, I now describe the
accompanying sheet of drawings reference being made to the figures and letters
marked thereon; similar letters refer to similar parts through the several views.
Fig. 1 is an end elevation of a camera showing the front board placed vertically;
Fig. 2 is a side view of the same Fig. 3 is a side view of a camera representing
the front board partly lowered for closing and in Fig. 4 the front board is entirely
lowered in the recess of the base board, and the camera ready for closing;
a, represents the camera body a¹ the baseboard b the front board, c, the bottom and
c the top of the front board; d, the fork, d¹, the transverse part of fork, e, the
stretcher, f, the groove in stretcher g, the head of screw, g¹ the screw, h, the recess
in base board, k the slide.

page_text: When the front board is placed vertically, the part c fits flush with tho transverse
part of fork d; when front board is lowered down into recess in baseboard part c¹
of front board is flush with transverse part of fork and part c of front board is
then at the further end of the camera.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed I declaro that what
I claim is
1st The swinging or oscillating movement of the front board in a photographic
camera, between the sides of the fork, to obtain front and back spring, and tho use
of two set screws to fix front board in any required angle or position substantially
as herein before described.
2nd In a photographic camera the combined arrangement and use of a fork,
stretchers with long slots, set screws, and front board, whereby the said front board
fork and stretchers, may be folded down upon or within the recess in baseboard, or
raised again into any required position, without unscrewing or detaching any part,
substantially as herein before described.