IMPROVEMENTS IN TELEGRAPHIC PRINTING ÅDDARATING
Year: 1872

page_text: LETTERS PATENT to Leon Rault and Eugène Chassan, of Rue du
. Four St. Germain, No. 70, Paris, Agents of Telegraphic Lines, for
the Invention of "IMPROVEMENTS IN TELEGRAPHIC PRINTING ÅDDARATING
"
PROVISIONAL SPECIFICATION left by the said Leon Rault and
Eugène Chassan at the Office of the Commissioners of Patents,
with their Petition, on the 31st January 1872:
We, LEON RAULT and EUGÈNE CHASSAN, of Rue du Four St.
Germain, No. 70, Paris, Agents of Telegraphic Lines, do hereby declare
the nature of the said Invention for " IMPROVEMENTS IN TELEGRAPHIC
PRINTING APPARATUS," to be as follows:-
Our improvements relate to the telegraphic printing apparatus known
as Morse's, and consist,-

page_text: 3rdly. In a new action of the essential pieces placed between the
plates and above the cage containing the gearing.
And, 4thly. In a new arrangement of the spring for regulating the
armature.
For inking the paper, that is to say, for printing the signal, we employ
a closed reservoirs which directly deposits the ink with which it is filled
upon the band of paper. This reservoir, which may be of any form
found convenient in practice, is preferably in that of a cylinder composed
of two hollow portions' placed one against the other at about the centre
and in contact there by their edges so as to permit the ink which they
contain to leak through. They form at their junction a central swelling
or protuberance, which presents the appearance and acts similarly to a
hollow painter's muller as it were, distributing as it revolves the ink
contained within the reservoir. The distribution of the ink can be
regulated by a suitable separation of the edges of the two portions at
their point of junction or by little holes pierced round the swelling, or
by a disc of metal, leather, or fabric either flat or stamped, or by a
disc bevilled at its circumference, or lastly by adjusting a little
rubber or wiper. The cylinder also may be stationary, when we adapt
an ajutage or tube of any convenient form which distributes the ink
upon the paper when the latter is brought against it. Thus the first
portion of our Invention realizes the direct formation of indications or
signals by the reservoir charged with ink.
Instead of the train of rollers usually employed in the Morse
apparatus in order to cause the advance of the paper, we employ a
toothed wheel which catches the band. A curved presser maintains the
paper under the action of the toothed wheel. This presser pivots upon
a fixed centre, a spiral spring fixed at one of its ends to the plate, and at
the other to the presser, causes the latter to exert pressure against the
toothed wheel.
The ordinary guide for the paper with its flat spring is replaced in our
system by two little cylinders arranged side by side, between which the
band of paper passes. In its progress this band causes these two
cylinders to turn, and one of them is ceaselessly pressed by a spring
blade.
The peculiarity in the action of our apparatus consists in arranging
the parts intended for the inking and travelling of the band above

page_text: the gearing and between the plates, whilst in ordinary apparatus they
occupy a lateral position.
In our system the action of the armature is produced by means of a
flat spring the action of which is controlled by a cam or eccentric; this
spring is fixed to a square piece united to the lever, and is supported at
the other end upon the eccentric, which is itself keyed upon a rod which
can be turned by means of a button. It will be seen that the spring
will be stretched more or less according as a part of the cam more or less
· separated from the centre is presented to it.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Leon Rault and Eugène Chassan in the Great Seal
Patent Office on the 30th July 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, LEON
RAULT and EUGÊNE CHASSAN, of Rue du Four St. Germain, No. '70,
Paris, Agents of Telegraphic Lines, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirty-first day of January, in the
year of our Lord One thousand eight hundred and seventy-two, in the.
thirty-fifth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto us, the said Leon Rault and Eugêne.
Chassan, Her special licence that we, the said Leon Rault and
Eugêne Chassan, our executors, administrators, and assigns, or such
others as we, the said Leon Rault and Eugene Chassan, 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
TELEGRAPHIC PRINTING APPARATUS," upon the condition (amongst others) that
we, the said Leon Rault and Eugene Chassan, or one of us, our executors or
administrators, by an instrument in writing under our, or one of 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

page_text: and consists in arranging the parts intended for the inking and
travelling of the band above the gearing and between the plates, whilst
in ordinary apparatus they occupy a lateral position.
In our system the action of the armature is produced as shewn in
detail at Figure 4 by means of a flat spring S, the action of which is
controlled by an inclined plane T. This spring S is fixed to a square
piece united to a lever V, and is supported at the other end upon the
inclined upper face of the piece T. This piece T is moveable upon a
fixed rod Z which is stationary upon grooves.
But the piece T is
moveable upon the rod Z which is stationary; if therefore the rod is
turned by its button Y, the piece T will slide by its lower face upon the
plate, whilst its upper inclined face in advancing will more or less
stretch the spring S.
In order to regulate the separation of the armature above the bobbins
or coils, instead of employing the two independent screws shown in the
Drawing we can adopt the employment of a double arm movable in a
groove in the column of the apparatus, and actuated with ascending or:
descending movement by means of an endless screw turning in the
interior of the said column, and the threads of which are engaged in a
cut out part of the double arm. In this case the two respective arms
provided with contact screws are separated by an isolating material.
And having now described the nature of our said Invention, and in
what manner the same is to be performed, we declare that we claim,―
1st. The construction and method of operation of the ink reservoir
for inking the paper as herein-before described and shewn in the
annexed Drawings.
'
2ndly. The arrangement of appliances for drawing the paper and
regulating its unrolling, substantially as herein-before described and
shown.
3rdly. The combination and action of the essential pieces placed
between the plates and above the cage containing the motion wheels,
substantially as described and shewn.
4thly. The employment of a spring upon the armature in the manner
and for the purposes described and shewn.
5thly. The method of regulating the separation of the armature from
the magnets as described and shewn.

page_text: And, 6thly. The general combination and arrangement of the apparatus
for printing telegraphic despatches substantially as described and shown
in the annexed Drawings.
In witness whereof, we, the said Leon Rault and Eugene Chassan,
have hereunto set our hands and seals, this Eighteenth day of July
One thousand eight hundred and seventy-two.
Witness,
J. ARMENGAUD, fils,
Civil Engineer,
Paris, B. de Strasbourg, 23.
L. RAULT.
(L.S.)
E. CHASSAN.
(L.S.)