IMPROVEMENTS IN SELF-INKING PRESSES
Year: 1877

page_text: LETTERS PATENT to Joseph Laporte, Merchant, of 82, Boulevard Sébastopol,
Paris, in the Republic of France, for the Invention of IMPROVEMENTS IN
SELF-INKING PRESSES."
"
Sealed the 15th March 1878, and dated the 21st September 1877.
PROVISIONAL SPECIFICATION left by the said Joseph Laporte at the Office
of the Commissioners of Patents on the 21st September 1877.
JOSEPH LAPORTE, Merchant, of 82, Boulevard Sébastopol, Paris, in the Republic
of France. "IMPROVEMENTS IN SELF-INKING PRESSES."
"
The features of novelty in the Invention are, the printing characters or type are
fixed beneath the pressing plate, which is itself fixed by lugs; one or more inking
rollers are supported in bearings, and arranged on a movable plate, supplying them-
selves with ink from an inker, and then inking the type or characters in the type
frame; the sheet to be printed being placed on the movable plate referred to is
conducted under the pressing plate, and by depressing the lever the presser and
type descend.
The movable plate is set in motion by a crank, pinion, and rack, and the plate is
supported by longitudinal guides fixed on the frame of the press.
A double set of inkers and inking rollers may be mounted at each end, the rollers
being fixed to the frame transversely or diagonally.
The movable plate in its motion presents the inking table to the inking rollers,
or these latter deposit the ink on the stone or type when the movable plate conducts
the stone or the type beneath the inkers,

page_text: For lithographic printing a washing roller is fixed on the frame of the press by
supports, which admits of its being raised or lowered.
In putting a lithographic stone on the plate of the press at each end an alternate
inking and printing is effected.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph Laporte in the Great Seal Patent Office on the 19th March
1878.
JOSEPH LAPORTE, Merchant, of 82, Boulevard Sebastopol, Paris, in the Republic
of France. "IMPROVEMENTS IN SELF-INKING PRESSES."
This Invention relates to printing machines susceptible of various applications,
such as letter-copying presses, type-printing presses with automatic inkers, autograph
or lithograph presses with or without self-inkers, and double self-inking presses, which
admit of printing on stone or with type in a continuous and alternate manner.
Fig. 1 of the accompanying Drawings is a longitudinal section of a press of the
description referred to.
Fig. 2 is a front view partly in section.
Fig. 3 is a double press partly in section.
A is the frame; B, pressing lever; C, fly; D, connecting shaft; E, adjusting
screw; G, pressing plate; H, type frame; I, type; J, lithographic stone; k, movable
plate. 1, guides to the plate k; 2, rack, L supporting roller to the plate k, furnished
with teeth; 3, crank handle; M, inking roller; 4, support to the rollers; N, inker
or inking table; P, wiping roller; R, graduated support.
In Figures 1 and 2 the printing characters are fixed by thumbscrews beneath
the pressing plate G, which is fixed beneath the screw E by lugs. One or more
inking rollers mounted on the supports 4 charge themselves with ink from the
inker N and ink the type I in the frame H; the sheet to be printed being placed
on the movable plate k is led under the pressing plate G by acting on the lever B.
The plate G and type I descend, the fly regulating the pressure; the movable plate k
is set in motion by the crank 3, aided by the pinion 5 and rack 2.
Longitudinal guides are fixed to the frame for supporting the plate k. In removing
the plate G and screw E the press may be used for lithographing.
In Figure 3 all the principal parts are the same, with the exception of the plate k,
which is lengthened so as to admit of placing at each end an automatic inking
apparatus. The work is the same as described for Figures 1 and 2. The inking
rollers are fixed on the frame of the press in a transverse direction, or in a diagonal
manner, as desired. The movable plate or table in travelling alternately presents
the inker N to the rollers M, or these latter present the ink which they deposit on
the type or stone at the moment that the movable table k brings either the type or
stone beneath them.
For lithographic printing a washing or wiping roller P is fixed on the frame of
the press by supports admitting of either raising or lowering it.

page_text: By placing a lithographic stone on'the table of the press at each end thereof an
alternate inking and printing is effected.
I claim the presses, herein described, for printing either on stone or by type,
whether the inking is effected from above or below, and especially portable presses,
to which the improvement specially relate.
In witness whereof, I, the said Joseph Laporte, have hereunto set my hand
and seal, this Eighteenth day of March, in the year of our Lord One
thousand eight hundred and seventy-eight.