Improvements in Frames for Drying Prints or Printed Illustrations Produced by Means of Fast Printing Presses.
Year: 1899

page_text: Date of Application, 22nd Mar., 1899-Accepted, 27th May, 1899
Improvements in Frames for Drying Prints or Printed Illustrations
Produced by Means of Fast Printing Presses.
I, JULIUS MASER, Printer, Senefelderstrasse, Leipzig, in the Empire of Germany,
lo hereby declare the nature of this invention and in what manner the same is
o be performed to be particularly described and ascertained in and by the follow-
ing statement:-
Prints, or printed illustrations produced by means of fast printing presses (fly
or steam presses) give off some of their colour, when laid one above the other in
the course of the printing process, or become smudged. A further disadvantage
is that the drying of the prints is rendered difficult.
In order to meet these difficulties, the printers, whether book, lithographie,
copper-plate or photographic printers, employ two methods.
In the one method, the different prints are laid between sheets of paper, in the
other, they are placed on drying frames.
The former operation is one of very doubtful value, and also decidedly expensive.
If, notwithstanding, it has been long in use, the reason is that no other means
were known by which similar results could be obtained. The operation of laying
the prints between sheets of paper cannot be satisfactorily replaced by the ordinary
drying frames which can only be used for small printings say of a few hundred
copies, as they take up too much room and the material employed in making them
is too expensive and fragile.
The material used for these drying frames is in all cases wood, either alone or
in combination wire binding threads, etc.
In order to save room, the material is very slight in substance; the frames are
chiefly wooden frames with thin strips of wood, and thus are especially susceptible
to the influence of the temperature, as also to the action of the workman's rough
fingers, and which cannot be dispensed with.
No frame remains undamaged for any length of time.
Attempts have been made to obviate these disadvantages by employing other
material.
Iron frames or wooden frames with threads or wires stretched over them; wire
gauze for filling" the frames, have been used, the results, however, always being
such that a return to the "laying in" process was always certain in the end.
This invention has for its object to provide a frame or arrangement, by means
of which all the disadvantages of the "laying in" operation and of the drying
frames, are completely obviated; and consists in drying the prints on special
frames made of curved or angular corrugated sheet metal (see Figs. 1 to 3) which
can be furnished in a suitable manner with perforations. This material combines
exceptional durability with extreme serviceableness and economy.
+
The frames made of sheet metal are light, they do not take up the dirt, and if at
any time, requiring to be cleaned after long usage, the cleaning operation can be
effected in an exceedingly short space of time. Moreover, the frames possess pro-

page_text: perties which recommend them strongly to the printer. They take up the
minimum of space and promote the drying in a way not hitherto known.
By means of the angles or curves, and the holes which may, if desired be formed
The
in the metal, a circulation of air is effected in the best possible manner.
drying process is shortened 50%, by the use of the corrugated metal and the holes
which may be formed therein.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
-
1. The improved drying frames for drying prints fresh from the press consisting
of curved or angular corrugated sheet metal strips perforated or not, and
strengthened by side bearers or supports, and in which the separate sheets or
prints are placed, substantially as described.
2. The improved frames for drying prints or printed illustrations produced by
means of fast printing presses, substantially as described with reference to the
drawings.
T41001 March 1800
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.