Improvements in Photographic Printing Frames.
Year: 1894

page_text: Date of Application, 27th Jan., 1894-Accepted, 17th Mar., 1894
Improvements in Photographic Printing Frames.
WILLIAM BUTCHER, Tranquil Vale, Blackheath, Kent, Manufacturing Chemist,
WILLIAM FREDERIC BUTCHER, Tranquil Vale, Blackheath, Kent, Manufacturing
Chemist, WILLIAM JAMES SPURRIER, 3 Queenswood Road, Moseley, Worcester-
shire, Manufacturer 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 relates to the production of photographic printing frames, our
object being to make such printing frames, without any loose parts, and of such
construction that they be much more quickly manipulated than those of known
construction. To attain our object we preferably construct our improved
photographic printing frames entirely of metal, but any other materials may be used
or employed.
We will proceed to more exactly describe our invention by the means of the
accompanying drawings.
Figure 1. represents the plan of the frame with the back or cover and fastenings
attached and opened.
Figure 2. represents an end elevation of same.
Figure 3. is a topside plan of our printing frame, with the backs closed and
fastened.
The same letters are used to indicate the similar parts in the different figures.
a is the frame provided with a sunken flange a 1-to hold the negative to be printed
from, onto one side of which are jointed to a stout wire d, which may be continued
entirely round the outer edges of the frame, a, back or cover in two parts b, b 1. To
the opposite side of the frame are similarly jointed two catches c, cl; for the
purpose of fastening down, the back or cover b, 61, when closed over the negative
with the photographic printing paper in position to be printed. The backs or
covers are worked into such special conformation, as is indicated in Figure 2, b, so
that the necessary pressure is brought to bear onto the paper or other material
used, to keep it in contact with the negative during the operation of printing, and
are preferably made of unequal sizes, in some such proportion as one part or portion
to be one-third and the other part or portion to be two-thirds of the whole size of
the back or cover.
OPERATION.
Assuming that the printing frame constructed according to our improvements is
closed up, unfasten the catches, cl, and open out both parts of the back or
cover b, 61, then place the negative in the flange a 1, with the paper over it, bring
both the parts of the back or cover b, 61, over all and turn in the catches c, and c 1,
over the respective portions of the back or cover. The positions of the respective
parts is shown in Figure 3. There being no loose parts and the arrangement of
our improved printing frame being so convenient, it may be operated in much less
time than printing frames of known construction.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-

page_text: conformation necessary for holding the paper or other material in contact with the
negative, by the catches which are jointed onto the other side of the frame,
substantially as described and set forth.
26th January 1894.
WILLIAM BUTCHER.
WILLIAM FREDERIC BUTCHER.
WILLIAM JAMES SPURRIER.