Improvements in and connected with Printing Telegraph Instruments.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in and connected with Printing Telegraph
Instruments.
We, DAVID HOMER BATES of No. 44 Broadway New York City, State of
New York in the United States of America Electrician and HENRY VAN
HOEVENBERGII of the same address Electrical Engineer do hereby declare the
nature of this invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
Our invention relates to printing telegraph instruments and the object of our
invention is to provide means whereby two or more copies of a message may be
simultaneously printed by a single instrument, the duplicate messages being printed
side by side upon two ribbons of paper or upon a single ribbon of paper so prepared
that the two copies of the message may readily be separated from each other.
Our invention applicable especially to an instrument such as is described in the
Specification of an application (No. 11144 dated 30th June 1891) made by one of
us viz. Henry Van Hoevenbergh concurrently with this.
Figure 1 illustrates the improved apparatus for duplicating the printed record;
and Figure 2 is a detailed view of the duplicate printed record.
We employ two type-wheels, or two series of characters, operated together, and
from both wheels, or both series of characters, the message is simultaneously printed
in duplicate, by the action of a single press lever, on a paper ribbon so prepared as
to be readily divided longitudinally, to separate the duplicate copies of the message.
The characters are so arranged as to be read in lines transverse to the axis of the
two series.
The invention is specially adapted for use in connection with railroad telegraphs,
where duplicates of all train messages are requisite or desirable; and also in
all cases where it is desired to retain in the telegraph office a duplicate of messages
that are received and delivered.
The type-wheel shaft. B and press lever J we construct as shown in Figure 1.
and y represent two series of letters or characters arranged about the type-wheel
shaft with corresponding letters side by side. Each series is shewn as being carried
by a separate type-wheel, but obviously both series might be placed upon the
periphery of a single wheel, and, however arranged, they revolve in fixed relation
to each other. The platen L carried by the press lever J, is of sufficient width to
cause an impression to be taken from both series of letters simultaneously, upon a
paper ribbon S of proper width, passed between the platen and the type-wheels, and
fed toward or drawn from the type wheels, in any suitable manner. The paper
ribbon S as indicated in Figure 2 is of sufficient width to receive impressions from
both type-wheels and is provided with a central longitudinal line of perforations,
indentations, cuts, or other equivalent device, whereby it may readily be severed
longitudinally into two strips, on each of which the message is printed.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :
1. The combination, substantially as set forth, of two rotating series of like letters
or characters having corresponding letters or characters in the two series arranged
side by side in fixed relation to each other, the letters being arranged so as to be
read in lines transverse to the axis of the two series, and impression devices for
simultaneously taking an impression of corresponding characters from both type
wheels whereby duplicates of the same message may be simultaneously printed.
2. The combination, substantially as set forth, of two series of letters or characters

page_text: rotating in fixed relation to each other, and having corresponding letters arranged
side by side, a paper ribbon of sufficient width to receive impressions from both
series of letters and provided with a longitudinal line of perforations or indentations
to facilitate its longitudinal division into two ribbons, and impression devices for
simultaneously printing on the ribbon, from both series of letters, duplicates of a 5
message, on opposite sides of the line of perforations.
Dated this 30th day of June 1891
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.,.Agents.