Improvements in Photographic Printing Frames.
Year: 1897

page_text: Date of Application, 28th June, 1897
Complete Specification l'eft 28th Mar 1800 Accented 28th June 1808
PROVISIONAL SPECIFICATION.
Improvements in Photographic Printing Frames.
JOSEPH WILKINSON, Photographer, Metal Stamper and Inventor, Glen Mill,
Burton-in-Lonsdale, Yorkshire, do hereby declare the nature of this invention
to be as follows:-
To attain the above objects I make a frame of sheet metal such as tin brass
copper or other suitable material and sq fold the two sides and bottom as to
form a sheath for the negative to slide into. The top piece I fold to get strength
but I roll this flat so as to admit the negative to slide in when joined. The back
of the frame I make of two pieces of sheet metal these I fold all round the edges.
but the two sides I fold inwards and the other outwards the sides having to hold
the packing in position which is done by slipping the packing under the folded
metal and then rolled flat. On the outward folds I solder on hinges to join the
two together. The back thus formed and packing combined I join to the frame
or sheath at the bottom by one or more hinges soldered to each so that it will
open and close the same as a double dark slide. Instead of the long springs
in general use I solder spring clasps one to the top of the back of the frame and
one on each side of the half as near the hinges as possible so as to get sufficient
equal pressure these spring clasps reach over the sides of the frame and clasp on
the front so it will be seen at a glance the frame can be opened and closed by
mere pressure either one way or the other and the print examined or taken out
as required.
For automatically registering number of prints as they are printed I make a
dial wheel or disc with cogs of sheet metal and number each cog so that when
the wheel is pushed forward one cog at a time one more print is registered.
This wheel I cause to revolve on a pivot or stud by a push spring attached to a
sliding carriage on the frame this carriage being driven forward by a pusli rol
attached to the carriage by a piece of metal attached to the bottom of the back
of the frame so that when the bottom of the frame closes the push glides down
the inclined plane at the end of the push rod causing the carriage and all fastened
to it to move forwards the distance of one cog. The two side clasps then engage
the frame and thus lock it in this position until the clasps are released when a
spiral spring which I place at the other end of the push rod drives back whole
ready for the frame closing as before that is every time the bottom of the frame
closes one cog is driven forward that is another number is in front of push spring.
Now if I require twelve prints from a negative I shall need as many cogs in the
wheel and as many numbers on the dial so that in one revolution of the wheel
completes the number required then I leave a space of one cog so as to stop the
wheel from travling further so that the printer will know to change the
negative.
These wheels can be multiplied so that this first one by a small peg fixed on
the face say on one of the cogs and the second wheel placed, so that when the
wheel on which this peg or pin is fixed revolves once round the' pin will engage

page_text: one cog of the second wheel and by the time the first wheel has gone round the
second will only have advanced one cog so that one revolution of the seccond
wheel will be twelve times the number of the first that is one gross by adding
another wheel and marked in the same way would number in one revolution
twelve gross. By making this clock work seperate I can attach it to the old form 5
of printing frame and work it by the end of the spring or attach a push to the
back of the frame so as to engage the push rod the same as in the one now
discribed.
PASL
cleanly what I moon
improveшенов шгпосоргарито і гіцину ггашев.
JOSEPH WILKINSON, Photographer, Metal Stamper and Inventor, Glen Mill,
Burton-in-Lonsdale, Yorkshire, 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 subject of this invention is a printing frame designed to hold photo-
graphic negatives while being printed, and has for its object to provide such a
device with registering means, whereby the opening and closing of the frame is
recorded, and thus the number of photographs printed registered.
The invention consists in the features of construction and combinations of parts
here in after fully described and specifically claimed.
The invention is fully disclosed in the following specification of which the
accompanying drawing forms a part, in which the seperate parts of my improve-
ment are designated by the same numerals of reference in each of the views, and
in which;-
Fig. 1 is a rear view of the frame with one leaf of the back open and showing
a negative being inserted;
Fig. 2 is a rear view of the device when closed entirely.
Fig. 3 is a front view of the same;
Fig. 4 is a view similar to Fig. 2, but showing a different form of locking
device for fastening the back; and,
Fig. 5 is a detail plan of a portion of the registering mechanism..
This invention is applicable to printing frames now in use although in Fig. 1, 2,
and 3, an improved fastening device is shown. In printing frames, the back is
composed of two leaves, hinged together, and which fit within the frame. This
back is held in place, usually, by a seperate spring or cross bar for each leaf,
so that one leaf can be opened to examine the print without disturbing or loosen-
ing the print and negative. The other, or, as I term it, stationary leaf, is only
released when the print is to be removed, and in accordance with the principle
of this invention, the register is situated, so that it is operated by the insertion
and removal of this stationary leaf, that is to say the insertion of this
stationary leaf, moves the registering dial one notch, while its removal
allows a spring to return the operative parts to their normal position and ready
for another impulse.

page_text: In said drawings, 1 indicates a frame 2 the stationary leaf, and 3 the movable
leaf hinged thereto. In Fig. 1, 2, and 3, the leaf 2 is provided laterally, and.
the leaf 3 at one end, with spring clasps 4 to engage the rails of the frame and
to thus hold the leaves in position, it being noted that the clasps of leaf 2 are
near the hinge to afford an efficient clamping action. The leaf 3 can be
unclasped and raised without obstruction while the leaf 2 is provided laterally
with an inclined finger or projection 5 to engage the beveled end of a longitu-
dinally movable rod 6 retained in a guide 7 up on the side of the frame. The
other end of the rod 6 has a spring finger 8. situated to engage a tooth wheel 9
of the registering mechanism and to turn said wheel 9 by reason of the longitu-
dinal movement of the rod. A spring 10 is situated between the guide 7 and a
shoulder 11 upon the rod and retracts the latter to move its beveled end into
position to be operated upon by the projection 5 of the leaf 2. The registering
mechanism shown in detail in Fig. 5, is of approved construction, that is to say,
it has the unit's disk or wheel 9, the ten's disk 12, and hundred's disk 13, although
the specific form of registering mechanism does not form a part of this invention.
The parts are so arranged that the beveled end of the rod 6 is normally in the
path of the projection 5, so that when the back is placed within the frame, the
rod is moved forward and turns the wheel 9 the distance between two teeth by
means of its spring finger 8. The rod is held in its forward position until the
back is removed; it being noted that the leaf 3 can be opened or closed, without
disturbing said leaf 2. In this way, a record is made of the number of prints,
which is of advantage for various reasons and obviates the trouble often met
with in printing, namely, the uncertainty of making the correct number of prints
as is obvious to those skilled in the art.
In Fig. 4, the device is shown as applied to a printing frame of well known
structure and having the cross pieces 15. The end of the rod 6 is situated to be
engaged by the cross piece 15 that secures the leaf 2 in place, whereby said cross
piece moves the rod to cause the register to make a record every time the said
cross piece is locked, said spring moving the rod to its normal position when the
cross piece is removed. In other respects the construction is similar to that above
described.
In another device by shaping the end of the cross piece or spring to engage the
tooth of the wheel as it passes from left to right it pushes the wheel one cog
forward, and a lock spring prevents the return motion. By this means the
number is registered and the printer can use the spring in the ordinary way.
Having fully described my invention I claim as new and desire to secure by
Letters Patent:-
1. A printing frame having a registering mechanism, and means for actuating
the same controlled by the insertion and removal of the stationary leaf of the
back thereof, substantially as and for the purpose set forth.
2. A printing frame having a registering mechanism, and an operating rod
therefor situated in the path of a projection upon the stationary leaf of the back
thereof, substantially as and for the purpose set forth.
-
3. A printing frame having a registering mechanism, a longitudinally movable
rod for actuating the same, a spring for moving said rod in one direction, and a
projection upon the stationary leaf of the back to engage and move said rod in
the opposite direction, substantially as and for the purpose set forth.
4. A printing frame having a registering mechanism a longitudinally movable
rod provided with a spring finger to engage a tooth wheel thereof a spring for
moving said rod away from said tooth wheel, said rod having a beveled end
portion, and a back having a stationary leaf provided with an inclined projection
to engage said bevelled end of the rod, substantially as and for the purpose set
forth.

page_text: 5. In a printing frame, a back composed of two leaves hinged together, one of
said leaves having lateral spring clasps, and a spring clasp at the outer end of
the other leaf, substantially as and for the purpose set forth.
'
Dated this 26th day of March 1898.