Year: 1887

page_text: Date of Application, 2nd June, 1887.
Specification Accepted, 5th Aug., 1887.
I, FREDERICK William Zimer, of New York, in the United States of America,
and of London, in the County of Middlesex, England, Agent, do hereby declare the
nature of the said 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 that class of stencil copying apparatus in which a stencil.
sheet is produced by the writing of a stylus upon a transparent waxed or oiled paper
contained in a frame which is superposed upon a metallic file surface, the copy being
subsequently obtained by passing an inking roller over and upon the stencil when the
paper to receive the copy is placed beneath it.
The Invention consists essentially in detachably securing the stencil holding frame.
to the bed frame of the apparatus by means of a spring hinge attachment suitably
fastened to the bed frame, and which permits of the stencil holding frame being easily
removed from the bed frame to allow of its contained sheet being properly placed.
upon a suitably filed surface. to receive the writing to form the stencil, and is also
effective in automatically raising or removing the stencil after each copying operation
(being aided in such operation by a starting spring adapted to the opposite end of
the bed frame) and thus allows of the free use of the hands for removing the copy and
replacing it by a fresh sheet.
The Invention also consists in providing the file surface with paint ruled tally lines
in distinctive color so as to be seen through the sheet for the convenience of the
writer in preparing the stencil.
On the accompanying drawings:-Fig. 1, represents a perspective view of my
improved apparatus for stencil printing showing the stencil carrying frame in raised
position after having been utilized in printing upon the sheet placed upon the bed
panel.
Figs. 2, and 3, represent respectively a transverse and a longitudinal section of the
apparatus showing the stencil in position for printing upon the sheet placed upon the
bed panel.
Fig. 4, represents in sectional detail view the manner of connecting the stencil
carrying frame with the movable leaf of the spring hinge after the stencil sheet has
been written upon on the file surface, and of securing the frame for printing.
Fig. 5, represents in edge view the socket part of the stencil carrying frame which
ceives the unner or movable leaf of the hinge.

page_text: Fig. 6, represents in perspective the upper part of the stencil clamping frame.
Fig. 7, represents the file in perspective.
Fig. 8, represents the stencil clamping frame in vertical longitudinal section
separated from its actuating spring hinge and placed upon a table with the sheet in
position upon the file to receive the writing by the stylus.
And Fig. 9, represents a perspective view of the spring hinge.
10, is the base of the copying apparatus which is made preferably of a box-like
form for affording facility of enclosing or storing the materials used in the process.
11, is the bed panel upon which the paper to receive the copy is laid and which
may advantageously form the top or lid to the boxed base, 10. 12, is the removable
stencil holding frame in which the waxed or oiled paper, 13, is fastened. The frame, 12,
is constructed of two parts, a grooved bottom frame, 14, and a corresponding beaded
top frame, 15, which surrounds the frame, 14, its beads, 16, fitting into the grooves,
17, thereof, in which position the parts are secured together by means of clamps, 18.
19, is the spring hinge, the leaf, 20, of which is screwed or otherwise suitably
fastened to the base, 10, its other leaf, 21, fitting into sockets, 22, which may be
formed in the end of the frame, 14, or may be formed by a recessed plate, 23, screwed
to the underside of the frame, 14. A part, 24, of the movable leaf, 21, is set up and is
formed with an aperture, 25, through which projects a screw pin, 26, (projecting from
the outer edge of the frame, 14,) when the parts of the hinge leaf, 21, are inserted into
the sockets, 22, in order to connect the stencil, frame, 12, with the base frame, 10, and
the attachment of such parts is made secure by screwing a milled nut, 27, onto the
end of the screw pin, 26, and against the set up, 24.
28, is the file which is preferably cut in one direction only, vide the lines, 29,
though it may be cut in cross directions, or in any other suitable way, and is provided
with surface paint ruled tally lines, 30, which may be made in any required color or
colors, and transversely of the sheet for the purpose of copying writing, or transversely
and perpendicularly for convenience in preparing statements of account, or they may
be made in any required direction. 31, represents a hand rest which is used when
writing on the stencil.
:
The improved apparatus is used as follows:-
:-
The frame, 12, being removed from the spring hinge, 19, attached to the base, 10,
its two parts, 14, and, 15, are separated, and after the stencil paper, 13, is placed
between them, they are again clamped together by means of the hooks, 18.
The special advantage of having the double clamping frame for the stencil
detachable from the hinge fixed to the base frame, is that it permits of the sheet to
be stencilled being placed horizontally upon and in true surface contact with the
file which rests upon a table as in Fig. 8, so that the stencil can be properly pre-
pared by writing upon it with the stylus, the frame, 12, together with the hand
rest, 31, being moved over the file until the required writing is completed, the
operator following the rulings, 30, on the file which are visible through the transparent
stencil paper.
After the stencil has been prepared, its carrying frame, 12, is removed from the
file, and is secured to the movable leaf, 21, of the spring hinge, in the manner
above set forth, and its under plane will then work coincident with the top surface
of the copy receiving sheet, 32, which is placed upon the block, 11.
During the copying operation, the stencil frame is held down by the one hand,
while with the other hand the operator uses an ordinary inking roller, and after each
of such copying operation the frame, 12, is released from the pressure of the other
hand upon which it is automatically raised about its hinge as a centre, its initial
movements being caused by a starting spring, 33, (which is fastened to the base-
frame, 10, in such a manner as to be compressed by the depression of the stencil
frame, 12, and to act upon its free end when released from pressure) and the move-
ment being completed by the action of the spring hinge, which quickly raises the said
frame and permits of the use of both hands for the removal of the printed sheet and
the placing of another prior to a repetition of the operation.
When it is desired to substitute another stencil, it can be very quickly done, by

page_text: unscrewing the nut, 27, removing the frame, 12, and proceeding with the latter and
with a new sheet for the stencil in the manner herein before described.
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 combination of base, 10, and detachable stencil carrying frame, 12, having
a socketted end, with a spring hinge, 19, and means for detachably securing part
thereof within the socket of the stencil carrying frame, substantially as hereinbefore
described.
2. The combination of the base, 10, spring hinge, 19, having a leaf, 21, formed
with a set up, 24, and aperture, 25, with removable frame, 12, having sockets, 22,
screw pin, 26, and nut, 27, substantially as herein before described.
3. The combination of the base frame, 10, and socketted detachable stencil carrying
frame, 12, with spring hinge, 19, and a starting spring, 33, substantially as and for
the purpose hereinbefore described.
4. In combination with the frame, 14, formed with recess at, 17, (and socket at 22,)
the frame, 15, formed with corresponding mouldings, 16, substantially as hereinbefore
set forth.
5. The stencil producing file provided with paint ruled tally lines, substantially as
and for the purpose hereinbefore described.