IMPROVEMENTS IN LITHOGRAPHIC PRINTING MACHINES, PARTS OF WHICH IMPROVEMENTS ARE APPLICABLE TO OTHER MACHINERY.
Year: 1871

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LETTERS PATENT to Claude Desiré Goubet, Civil Engineer, and Jean
Noel Monrocq, Printer, of Boulevard de Strasbourg No. 23, Paris,
for the Invention of "IMPROVEMENTS IN LITHOGRAPHIC PRINTING
MACHINES, PARTS OF WHICH IMPROVEMENTS ARE APPLICABLE TO OTHER
MACHINERY.'
PROVISIONAL SPECIFICATION left by the said Claude Desiré Goubet
and Jean Noel Monrocq at the Office of the Commissioners of
Patents, with their Petition, on the 28th December 1871.
We, CLAUDE DESIRÉ GOUBET, Civil Engineer, and JEAN NOEL
MONROCQ, Printer, of Boulevard de Strasbourg, No. 23, Paris, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN LITHO-
GRAPHIC PRINTING MACHINES, PARTS OF WHICH IMPROVEMENTS ARE APPLICABLE
TO OTHER MACHINERY," to be as follows:-
=

page_text: Futhly. To the employment of a travelling presser plate to litho-
graphic machines and the means by which pressure is obtained.
Sixthly. To the employment travelling cleaning boxes and inking
rollers to machines with fixed stones.
And, seventhly. To modifications of some of the parts as hereafter
referred to.
The following description will suffice to enable our Invention to be
understood:-Upon two side frames firmly bolted and tied we arrange
two standards, which carry the pressure plate for transferring the
impression from the stone to the paper. These standards are moved
to and fro over the stone by endless chains passing over pinions shaped
for the links of the chains to fit. The stone is fixed at about the middle
of the frame and has an inking table or slab at each end, over which
inking rollers and boxes containing sponge for inking and cleaning the
stone pass.
The rollers and boxes are in a travelling frame, which
receives the necessary motion through chains and pinions actuated from
a main shaft on which strap pulleys are mounted. Stop lugs are
attached to some of the chain links, and these act upon levers for
shifting the strap from one pulley to the other alternately, to effect the
proper movement of the travelling frames. One end of the machine has
a bellows (actuated by levers), from which pipes lead the wind to the
stone for drying it automatically, and also an arrangement of levers. for
closing and opening the grippers as well as raising and lowering the
tympan.
The links of the chains are composed of a flat web with projections
or ears through which the connecting pins pass, one portion of the ear
being cone-shaped to fit the teeth of the wheels to prevent slip; the
wheels are double, with a space between the faces for the web of the

page_text: link to take into.
These links and wheels are applicable to other
machines besides those used for lithographic printing.
The pressure of the press plate may be obtained by springs from above
or below, or by weights, but springs are preferred on account of economy
in space, and a ventilator may be used in lieu of of the bellows for drying
the stone.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Claude Desiré Goubet and Jean Noel Monrocq in
the Great Seal Patent Office on the 27th June 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, CLAUDE
DÉSIRÉ GOUBET, Civil Engineer, and JEAN NOEL. MONROCą, Printer, of
Boulevard de Strasbourg, No. 23, Paris, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-eighth day of December, in the
year of our Lord One thousand eight hundred and seventy-one, in the
thirty-fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Claude Désiré Goubet and Jean Noel
Monrocq, Her special license that we, the said Claude Désiré Goubet
and Jean Noel Monrocq, our executors, administrators, and assigns, or
such others as we, the said Claude Désiré Goubet and Jean Noel
Monrocq, our executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN LITHOGRAPHIC PRINTING MACHINES, PARTS OF WHICH IMPROVE-
MENTS ARE APPLICABLE TO OTHER MACHINERY," upon the condition (amongst
others) that we, the said Claude Désiré Goubet and Jean Noel
Monrocq, our or one of our executors or administrators, by an instru-
ment in writing under our, or one of us, our, or their, or one of their
hands and seals, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within

page_text: ment of the travelling frames. One end of the machine has a bellows
(actuated by levers), from which pipes lead wind to the stone for
drying it automatically, and also an arrangement of levers for closing
and opening the grippers as well as raising and lowering the tympan.
The links of the chains are composed of a flat web with projections
or ears through which the connecting pins pass, one portion of the ear
being cone-shaped to fit the teeth of the wheels to prevent slip; the
wheels are double, with a space between the faces for the web of the
link to take into. These links and wheels are applicable to other
machines besides those used for lithographic printing.
The pressure of the press plate may be obtained by springs from above
or below, or by weights, but springs are preferred on account of economy
in space, and a ventilator may be used in lieu of the bellows for drying
the stone.
We proceed to describe our improvements with reference to the
annexed Drawings, from which they will be readily understood.
Figure 1 is a perspective view of a lithographic printing machine, and
Figures 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13, views of details of several
of its parts forming distinct improvements.
In Figure 1 the press is shown at the moment when the attendant is
about to place the sheet to be printed upon the register pins A; the
hooks or grippers B which maintain the sheet upon its frame are open;
the pulley C for the driving band is keyed upon the shaft D for com-
municating the movement to a pinion, which in consequence causes the
rotation of the pinion E and shaft G. At each end of the shaft G a
pinion H is keyed, of the special form shown in Figures 6 and 7, round
which the specially formed chain X rolls; a link of this chain is shown
separately in Figures 2 and 3. The rounded projecting pieces or rollers
of this chain engage between the teeth b, b, of the pinion H, and the flat
parts c, c, of the links take into the grooves d which are made across the
teeth b.
The chain, one link of which is shown in Figures 4 and 5, may be
employed instead of the chain X, and gears into the pinion H in the
One of the links of the chain X is
same manner as the chain X.
provided with a conical button f sliding in a slot made in the frame
of the inking carriage I. These chains by means of this button draw

page_text: the carriage of the inkers, which then quits the inking plate, passes
upon the stone and inks it, and proceeds on to the second inking plate K,
here it takes up ink by means of its rollers; it gives humidity to its
moisteners in advance, repasses over the stone again inking it, and
returns to its point of departure upon the inking plate J. We have
shown separately at Figure 11 the arrangement of these moisteners,
which are provided with points in thir interior in order to hold the
sponge and with pressure screws m. The rollers of these moisteners
are so arranged as to possess a slight transverse movement. The chain
turns always in the same direction, for the forward movement the button
is at the top of the slide, and for the backward movement at the bottom.
When the carriage starts, the front moistener, say, sponge in a box M
damps the stone before the inking rollers pass over it; the buck
moistener N damps it in returning, also before the passage of the
inking rollers. In the return of the carriage the button which is at
the bottom of the slide lifts the moistener by means of the lever o, and
thus prevents it from bearing upon the stone, while in the forward
movement, on the other hand, it is left completely free. When the
chain brings back the carriage the cam P fixed to this chain causes the
lever Q to tilt, which makes the counterweight R to oscillate, and thus
causes the strap to pass upon the pulley U. The other arm of the
tilting lever Q causes a rod s to act, which withdraws the point of
support from the springs holding the hooks B of the frame T, which
contracting in consequence causes the hooks to close and firmly fix the
paper to be printed. The pulley U runs loose upon the shaft D and is
in one piece, with a pinion resembling the pinion H, and this by means
of its chain communicates its movement to the shaft V, and consequently
to another chain X' at each side of the press; this chain by means of a
button similar to the first button f engages into a slot in the carriage L
which carries the pressure plate, and thus puts it in motion.
The carriage L bearing the pressure plate is formed by two plates
united by a strong cross piece; and a rod in the middle upon which a
spring is placed enables the pressure to be given more or less strongly as
desired. A hand wheel Z or a piece of metal fixed beneath the spring
may be screwed up and down on the rod so as to raise or lower the
pressure plate at will. This carriage may be replaced by another, which
we have shown separately in Figure 8. In this arrangement the spring
acts by traction instead of pressure, but in both cases the lower rollers

page_text: and the upper roller bear constantly below, and above the paths of
rolling A¹. The pressure plate is held at the rear, but it may be tilted
to the front. The paths of rolling A' are flat for a certain distance from
the commencement of the stone, when they are caused to slope to the
end. In its movement the carriage L of the pressure plate causes the
frame T to be lowered by means of a roller D¹ and fork E' fixed at each
side of the axis of the frame. It is drawn until it is laid flat upon the
stone resting upon conical supports conveniently arranged upon the
inking tables, and which may be regulated with exactness. The hinder
branch of the fork E¹ in reversing in order to lift the frame returns the
pressure plate Y to the vertical position. In lowering the frame. by
means of a crank or lever O³ fixed upon its axis actuates a bellows W
placed under the frame of the machine, which sends wind through a
reed z over the stone so as to dry it, and at the same time restores to
their supports the springs of the hooks. If a ventilator is employed
instead of bellows, movement is imparted to the ventilator by the
lowering of the frame. The movement of the bellows may be com-
municated directly from the carriage L of the pressure plate, one of the
rollers of which may be caused to abut on its return movement against
a jointed finger W₁ shown separately in Figures 9 and 10, this finger
being arranged so as to yield in the forward movement, to produce no
action. When the roller D¹ on the side of the carriage arrives in front
of the fork E¹ it causes the frame to rise, which by its movement opens
the hooks B of the frame; and when the carriage of the pressure plate
has just reached its point of departure a cam F¹ causes the lever Q
to fall, and the counterweight R causes the strap to pass again upon the
pulley C. The inking carriage again makes its travel, during which
the attendant removes the printed sheet and replaces it by a blank

page_text: also to all purposes where such may be required, whether the motion be
continuous or reciprocating.
In witness whereof, we, the said Claude Desiré Goubet and Jean
Noel Monrocq, have hereunto set our hands and seals, this
Twentieth day of June One thousand eight hundred and seventy-
two.
C. D. GOUBET.
(L.S.)
Witness,
CH. ARMENGAud, Jun*,,
Civil Engineer,
23, B'. Strasbourg,
Paris.
J. N. MONROCQ. (L.S.)