Improvements in Photographic Printing Frames.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Photographic Printing Frames.
I, CHARLES AMBROSE MCEVOY, of 69 Victoria Street, Westminster, in the County
of Middlesex do hereby declare the nature of this invention to be as follows:-
According to this invention a photographic printing frame is formed of two wooden
frames hinged together at one side so that they close together bookwise. The one
frame is to receive the negative and the other the paper or other surface on which
the print is to be made. So far my improved printing frames are similar to those
patented by me No. 14376 of 1894; but I now have devised improved means for
supporting the negative and the surface to receive the print in the frames.
The frame which receives the glass plate negative has an opening through it
somewhat smaller than the plate. The plate is laid on the inner side of the frame
over the opening and the frame is recessed all around the opening so that the glass
lies flush or nearly so with the inner surface of the frame. To hold the plate in its
place a block of vulcanised fibre is let into a groove or recess at one end of the frame,
it can slide in this recess and a screw is provided by which the block can be moved
along the recess until its edge bears firmly against the edge of the glass plate, and so
this is securely held in its place in the frame.
When the surface to receive the print is also of glass for example such as is known
as opal, the opal plate is inserted into its frame and held in the same way as the
negative plate. This frame is closed at the back in such a manner as to effectually
exclude light, preferably by a panel of wood permanently fixed in the frame. When
the surface to receive the print is of paper it is held in a different manner, the frame
has an opening through it which admits of the paper being inserted from the outer
side of the frame, and the frame is provided at the top and bottom with lips of thin
sheet brass to support the paper when it has been placed in the frame. A block of
wood padded on its inner surface closes the frame behind the paper and it is secured
in its place by a spring bar such as I have described in my former specification.
According to another arrangement I insert the negative from the outside of its
frame and support it on lips in a similar manner; but the lips to support the negative
I arrange at the sides of the frame whilst those which support the paper are at the
ends. Thus when the frames are closed together the lips upon the one frame come
into the same plane with the lips upon the other frame and there is but the one
thickness of metal separating the edges of the negative from those of the paper to
receive the print, the negative is held in contact with lips upon its frame by wedges
or filling pieces of wood inserted over it from the outer side and kept in place by
metal lugs provided for the purpose, as is described in my former specification.
1000

page_text: I, CHARLES AMBROSE MCEVOY, of 69 Victoria Street, Westminster, in the County
of Middlesex, 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:-
According to this invention a photographic pring frame is formed of two wooden
frames hinged together at one side so that they close together bookwise. The one
frame is to receive the negative and the other the paper or other surface on which the
print is to be made. So far my improved printing frames are similar to those
patented by me No. 14376 of 1894, but I now have devised improved means for
supporting the negative and the surface to receive the print in the frames.
The frame which receives the glass plate negative has an opening through it
somewhat smaller than the plate. The plate is laid on the inner side of the frame
over the opening and the frame is recessed all around the opening so that the glass
lies flush or nearly so with the inner surface of the frame. To hold the plate in its
place a block of vulcanised fibre is let into a groove or recess at one end of the frame,
it can slide in this recess and a screw is provided by which the block can be moved
along the recess until its edge bears firmly against the edge of the glass plate, and so
this is securely held in its place in the frame.
When
When the surface to receive the print is also of glass for example such as is known
as opal, the opal plate is inserted into its frame and held in the same way as the
negative plate. This frame is closed at the back in such a manner as to effectually
exclude light, preferably by a panel of wood permanently fixed in the frame.
the surface to receive the print is of paper it is held in a different manner, the frame
has an opening through it which admits of the paper being inserted from the outer
side of the frame, and the frame is provided at the top and botton with lips of thin
sheet brass to support the paper when it has been placed in the frame. A block of
wood padded on its inner surface closes the frame behind the paper and it is secured
in its place by a spring bar such as I have described in ny former specification.
In the drawings annexed I have shewn examples of printing frames constructed as
above described.
Figures 1 to 4 shew a frame for taking a glass negative and a glass opal to receive
the print.
Figures 5 to 7 shew a frame for taking a glass negative and a sheet of paper to
receive the print.
Figure 1 is a face view of the frame when open.
Figure 2 shews a longitudinal section of the same.
Figure 3 is a section taken through the dotted line a b.
Figure 1 and Figure 4 a section through the line c d Figure 3.
A is the opening through the frame which is to receive the giass plate negative with
a recess A¹ on the inner side all round the opening for the edges of the glass negative
to rest in. B is a block which may be of vulcanised fibre sliding in a groove or
recess at one end of the frame. C is a screw by which the block can be moved
inwards until its inner end bears against the edge of the glass plate and holds the
glass securely. D is a spring bearing against a pin B which projects downwards from
the sliding block-the spring serves to keep the end of the block resting against the
end of the screw. The frame which is to receive the glass opal has in its inner face
a recess E for the glass opal plate to lie in and the plate is held in this recess by a
sliding block B' actuated by a screw C¹ in the same way as the glass negative is held
in the recess A¹.

page_text: When both plates have been placed into the recesses which are to receive them
and are held therein by the sliding blocks B B¹ the two frames are closed together
bookwise and locked in their closed position by the catch F.
When the two frames
have been so closed together and are lying with the frame which holds the glass
negative uppermost the block which retains this negative may be drawn back slightly
from it leaving the negative loose in the recess A¹. The negative may then be pressed
downwards on to the surface of the opal below it and whilst resting closely against
this surface inay be again locked and held by the sliding block B.
In the frame shewn at Figures 5 to 7 the glass negative is held in its recess A¹ by
a sliding block actuated by screw C just in the same way as that above described-
whilst the paper on which the print is to be taken rests at. its edges upon lips G of
thin sheet metal and has behind it a block of wood H padded on its inner surface as
described in the specification of iny former patent above mentioned.
When the negative and paper have both been secured in their frames and the two
frames have been closed and locked together, the glass negative may as in the frame
first described be set free in its recess by slightly drawing back the slide B-the negative
can then be pressed down evenly on to the surface of the paper and be again locked
and held by the slide. In this way very close contact between the negative and the.
surface which is to receive the print can be obtained and the same close contact will
be maintained however often the frame may be opened and again closed.
According to another arrangement I insert the negative from the outside of its
frame and support it on lips in a similar manner; but the lips to support the
negative I arrange at the sides of the frame whilst those which support the paper are
at the ends. Thus when the frames are closed together the lips upon the one frame
come into the same plane with the lips upon the other frame and there is but the
one thickness of metal separating the edges of the negative from those of the paper
to receive the print, the negative is held in contact with lips upon its frame by
wedges or filling pieces of wood inserted over it from the outer side and kept in
place by metal lugs provided for the purpose, as is described in my former
specification.
Having now particularly described and ascertained the nature ot ny said
invention and in what manner the same is to be performed, I declare that what I
claim is:-
1. In a photographic printing frame composed of two frames hinged together one
to hold the negative the other the surface to be printed on, forming the frame which
is to receive the glass negative with a recess on its inner face around the frames
central opening for the edges of the glass to rest in and with a clamping block
which can be made to bear against one end of the plate to lock it in the recess.
2. A photographic printing frame constructed substantially as hereinbefore
described and illustrated at Figures 1 to 4.
3. A photographic printing frame constructed substantially as hereinbefore
described and illustrated at Figures 5 to 7.
4. A photographic printing frame composed of two frames hinged together one to
hold the negative the other the surface to be printed on-each frame being formed
with an opening through it for the negative or surface to be printed on to be placed
in and having on the inner face of each frame on two opposite sides of the opening
formed through it-two inwardly projecting lips for two opposite ends of the plate or
surface to be held against the lips on the two sides of the opening in one frame
being at right angles to the two lips on the two sides of the opening of the other
frame so that the lips may come into the same plane when the frames are closed
together substantially as described.
1008