IMPROVE- MENTS IN ELECTRIC TELEGRAPH PRINTING APPARATUS
Year: 1863

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street,
in the City of London, Patent Agent, for the Invention of "IMPROVE-
MENTS IN ELECTRIC TELEGRAPH PRINTING APPARATUS."-A communication
A...
Sealed the 25th September 1863, and dated the 31st March 1863.
PROVISIONAL SPECIFICATION left by the said Richard Archibald
Brooman at the Office of the Commissioners of Patents, with his
Petition, on the 31st March 1863.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, Patent Agent, do hereby declare the nature of the said Invention.
for "IMPROVEMENTS IN ELECTRIC TELEGRAPH PRINTING APPARATUS," to be as
follows:-
This Invention consists of improvements upon an Invention for which
Letters Patent were granted to me the 14th December 1858, No. 2864.
The accompanying Drawing shews in side elevation the improved telegraph
printing apparatus, and I will successively describe its particular features.
1st. Arrangement of the electro-magnets.-In order to diminish the length
of the printing lever which comes in contact with the inking tracer beyond
the rollers conducting the band of paper, I have placed the electro-magnets a
at the front of the apparatus, and as near as practicable to the said rollers.
2nd. Printing lever.-I form this lever of a balance bar 6 fixed to a trans-
mitting arm c. The axis of the balance bar oscillates upon the arms of a.

page_text: fork e, carried the upright f. The soft iron g, which touches the electro-
magnets at each contact, is under the bar b. The fork e rests upon the
insulator on the upright f. Another insulator is also fixed to the bottom of
the upright. This upright is hollow to receive a spindle, on which the upright
is fixed, which spindle communicates at bottom with the stand of the appa-
ratus. There is also fixed inside the upright a rod in some conducting
material communicating with the insulator. is a vertical arm fixed under
the bar 6 on the right of the axis of motion; this arm passes through a
horizontal screw m, which regulates the course of the balance bar b, and abuts
against the upper arm of the insulating rod j, which protrudes from the side
of the upright f. n is a regulating screw nut to allow more or less play to the
spring o, the lower end of which is hooked to the block p fixed in the stand
of the apparatus; the heel r of the balance bar b is armed with a metal spurs,
which comes in contact with a screw t, communicating with the battery. This
screw serves also as a regulator as well as the screw m for the extent of the
contacts. The screw t communicates with the battery through the arm u fixed
on the upright v connected with the battery.
Transmitting arm.-This arm c, forming a prolongation of the balance bar b
is united to it by a sliding joint; the course of the slide is limited by the
stop ; the arm c is moved to and fro by means of a button y to bring the
screw stud on the outer end of the arm c into or remove it from contact
with the inking tracer 22. The arm c is held to the side of the balance bar b
by a spring, one end of which is hooked to enter into one or other of two-
notches, one of which serves to make the apparatus a commutator and the
other a receiver.
Automatic starting.-Under the arm c a bent plate 4 is fixed; 5 is a
regulating screw, which passes through the plate 4, and rests upon a spindle 6,
which is fixed on the lower end of the click, which effects the automatic
releasing or setting free of the clockwork, as described in the Specification of
the Patent before referred to.
When receiving at each contact the screw 5
and the regulating screw stud act together, the one to maintain the
automatic gearing, the other the throwing out of gear.
Travel of the paper.-The arm c is bent to allow the rollers carrying the
paper freedom of action. The strip of paper rolls off from the drum 7, and
is guided between two rollers 19 and 18, the lower of which is driven by the
clockwork, and the upper revolves by contact. The upper roller admits of being
raised to allow of the introduction of the paper between the rollers. The paper
on issuing from between the rollers passes under a loose roller 17, then over a
pad 18, and under another loose roller 19, the length of which is equal to

page_text: about one-third of the breadth of the strip of paper to allow the marks thercon
to be visible; the position of the loose rollers is calculated so as to prevent the
tracer drawing up the paper after making its impression.
Inking vessel. This vessel 20 is formed conical inside, with projections
towards the outlet to prevent the too free flowing down of the ink. An
aperture through the centre of the cover gives passage to the tracer 22; 23 is
a coiled spring for raising the tracer upon cessation of contact of the screw
stud upon the head 80 of the tracer; 28 is a stopper for closing the
funnel 29, after charging the vessel with ink through it.
In the apparatus constructed and arranged as before described no power of
electricity is employed either for the automatic setting free or for the motion of
the tracer, as these movements take place when the magnetic action has
acquired its greatest power.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Archibald Brooman in the Great Seal Patent Office
on the 30th September 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, Patent
Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirty-first day of March, in the year of our Lord'
One thousand eight hundred and sixty-three, in the twenty-sixth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Richard Archibald Brooman, Her special licence that I, the said
Richard Archibald Brooman, my executors, 'administrators, and assigns, or
such others as I, the said Richard Archibald Brooman, my executors, admini-
strators, 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 ELECTRIC TELEGRAPH PRINTING
APPARATUS," (communicated to me from abroad by Theodore Auguste Mario
Sortais, of Lisieux, France,) upon the condition (amongst others) that I,
the said Richard Archibald. Brooman, my executors or administrators, by
an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the

page_text: 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 six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Richard Archibald Brooman, 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 thereof, reference being had to the Drawings hereunto
annexed, that is to say :-
This Invention consists of improvements upon an Invention for which
Letters Patent were granted to me the 14th December 1858, No. 2864.
Figure 1 of the accompanying Drawings shews in side elevation, and
Figure 2 in plan, the improved telegraph printing apparatus, and I will
successively describe its particular features.
First. Arrangement of the electro-magnets.-In order to diminish the length
of the printing lever which comes in contact with the inking tracer beyond the
rollers conducting the band of paper, I have placed the electro-magnets a at
the front of the apparatus, and as near as practicable to the said rollers.
Second. Printing lever.-I form this lever of a balance bar b fixed to a
transmitting arm c. The axis of the balance bar oscillates upon the arms of
a fork c, carried by the upright f. The soft iron 9 which touches the
electro-magnets at each contact is under the bar b. The fork e rests upon
the insulator h on the upright f. Another insulator is also fixed to tho
bottom of the upright. This upright is hollow to receive a spindle on which
the upright is fixed, which spindle communicates at bottom with the stand of
the apparatus. There is also fixed inside the upright a rod in some conducting
material communicating with the insulator. l is a vertical arm fixed under
the barb on the right of the axis of motion; this arm passes through a hori-
zontal screw m, which regulates the course of the balance bar b, and abuts
against the upper arm of the insulating rod j, which protrudes from the side of
the upright f. n is a regulating screw nut to allow more or less play to the
spring o, the lower end of which is hooked to the block p fixed on the stand q
of the apparatus. The heel r of the balance bar 6 is armed with a metal
spur s, which comes in contact with a screw t communicating with the battery.
This screw serves also as a regulator as well as the screw m for the extent of
the contacts. The screw t communicates with the battery through the arm u
fixed on the upright v connected with the battery.
Transmitting arm.-This arm c, forming a prolongation of the balance bar b,
is united to it by a sliding joint; the course of the slide is limited by the

page_text: stop ; the arm c is moved to and fro by means of a button y to bring the
screw stud k on the outer end of the arm c into or remove it from contact
with the interior tracer 22. The arm c is held to the side of the balance bar 6
by a spring 1, one end of which is hooked to enter into one or other of two
notches 2, 3, one of which serves to make the apparatus à transmitter and the-
other a receiver. For the transmission the hook of the spring 1 enters the
notch 2, and for the reception it enters the notch 3; the arm c is therefore
held without the power of varying the function imposed upon it; it follows all
the motions of the bar to which it is fixed both for the reception and for
the transmission. Any other means of producing the same result may be
adopted.
Automatic starting.-Under the arm c a bent plate 4 is fixed; 5 is a
regulating screw, which passes through the plate 4 and rests upon a spindle 6,
which is fixed on the lower end of the click, which effects the automatic
releasing or setting free of the clockwork, as described in the Specification of
the Patent before referred to. When receiving at each contact the screw 5
and the regulating screw stud k act together, the one to maintain the automatic
gearing, the other the throwing out of
gear.
Travel of the paper.-The arm c is bent to allow the rollers carrying the
paper freedom of action. The strip of paper z rolls off from the drum 7, and
is guided between two rollers 12 and 13, the lower of which is driven by the
clockwork and the upper revolves by contact. The roller 13 turns on an
axis 14, which is prolonged in the form of a rod, through which a pin 15
passes, and acts as a pivot. This arrangement admits of the roller being
raised to allow of the introduction of the paper between the rollers. The
paper on issuing from between the rollers passes under a loose roller 17, then
over a pad 18, and under another loose roller 19, the length of which is equal
to about one-third of the breadth of the strip of paper to allow the marks
thereon to be visible. The position of the loose rollers 17 and 19 is
calculated so as to prevent the tracer drawing up the paper after making its
impression.
Inking vessel. This vessel 20 is formed conical inside with projections
towards the outlet to prevent the too free flowing down of the ink. An
aperture through the centre of the cover 21 gives passage to the tracer 22.
23 is a coiled spring for raising the tracer upon cessation of contact of the
screw stud k upon the head 30 of the tracer. The cover 21 is held by
collar 24, turning on the point 26, and having a hook into which a pin 25 on
the cover takes; the collar 24 is moved by a button 27. 28 is a stopper for
closing the funnel 29, after charging the vessel with ink through it.

page_text: Figure 3 is an elevation of part of a Morse apparatus with these improve-
ments applied thereto. All the parts to the right of the apparatus are similar
to those described in the Specification of my Patent before mentioned, except
that the rod a carries an excentric, the position of which is altered by hand to
transmit and to receive signals. The strip of paper 6' is guided and stretched
by an upper roller c'; it then passes under a lower roller d' and between two
cylinders ', f; beyond these cylinders it is guided by a movable pin g',
which keeps it apart from the wheel h' as long as the printing has not to be
performed; the strip of paper is then led under this wheel, and is kept from
contact therewith by a movable pin . The upper cylinder e' turns freely on
a fixed axis. The inking pad m¹ is placed beyond the cylinder e', and is held
in a bracket, which is free to rock on a fixed axis.
In the apparatus constructed and arranged as before described no power of
electricity is employed either for the automatic setting free or for the motion
of the tracer, as these movements take place when the magnetic action has
acquired its greatest power.
In witness whereof, I, the said Richard Archibald Brooman, have
hereunto set my band and seal, this Thirtieth day of September, Ono
thousand eight hundred and sixty-three.
R. A. BROOMAN. (L.S.)