Improvements in Photographic Printing Frames.
Year: 1896

page_text: Date of Application, 8th May, 1896
Complete Specification Left, 8th Feb., 1897-Accepted, 8th May, 1897
PROVISIONAL SPECIFICATION.
Improvements in Photographic Printing Frames.
EDWARD MARLOW Jr. THOMAS MARLOW 28 and 30 Constitution Hill
Birmingham Photographic Apparatus Manufacturers do hereby declare the
nature of this invention to be as follows:-
The object of our invention is to construct an improved fastener for the pressure
springs of photographic printing frames, by means of which the pressure springs
may be fastened or released without risk of moving the paper on which the print
is being made.
That our invention may be clearly understood, we herewith proceed to describe
it, with reference to the accompanying drawings.
Fig. I, is a photographic printing frame constructed according to our invention.
Fig. II, is a section at line E. E.
A is the framework.
B is the pressure board to which the pressure springs C C are attached.
C. C. are pressure springs which are held by catches D. D. D. D.
D. D. D. D. are spring metal catches attached to framework A which are
angled at top to retain springs C. C. when in position.
To remove the pressure board B for examining or changing the paper it is
necessary to press the angle pieces D. D. D. D. outwards to release pressure
springs C. C. & thus allowing the pressure board to be removed.
We do not limit ourselves to the position or shape of catches D. D. D. D. or
pressure springs C. C.
Improvements in Photographic Printing Frames.
EDWARD MARLOW Junr. THOMAS MARLOW Photographic Apparatus Manu-
facturers 28 and 30 Constitution Hill Birmingham 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:-
The object of our invention is to construct an improved fastener for the pressure
springs of photographic printing frames, by means of which the pressure springs
may be fastened or released without risk of moving the paper on which print is
being made.
That our invention may be clearly understood we herewith proceed to describe
it, with reference to the accompanying drawings.
Fig. I is a photographic printing frame constructed with pressure springs
fasteners according to our invention.
&
line

page_text: B is the pressure board to which the pressure springs C C are attached.
CC are pressure springs which are held by fasteners or catches D D D D
& notched at E. E. E. E.
D. D. D. D. are spring metal catches attached to framework A, which are
rounded or angled at top to retain springs C C when in position.
To remove the pressure board B for examining or changing the paper, it is
necessary to press spring metal catches or angled pieces D D D D outwards
to release pressure springs C C & thus allowing the pressure board to be
removed.
We do not limit ourselves to the position or the shape of catches D D D D or
the pressure springs C C.
Having now described our said invention and in what manner the same is
performed we declare that what we claim is
A photographic printing frame with spring catches & pressure springs as
hereinbefore described, & with reference to the accompanying drawing.
Dated this 6th den
1008
EDWARD MARLOW, JUNK.
THOMAS MARLOW.
EDWARD MARLOW, JUNK.
THOMAS MARLOW.