AN IMPROVEMENT IN UNISON STOPS FOR PRINTING TELE- GRAPHS
Year: 1872

page_text: LETTERS PATENT to William Morgan Brown, of the Firm of Brandon
and Morgan Brown, Engineers and Patent Agents, of 38, South-
ampton Buildings, London, and 13, Rue Gaillon, Paris, for the
Invention of "AN IMPROVEMENT IN UNISON STOPS FOR PRINTING TELE-
GRAPHS." -A communication from abroad by Martin F. Wessman,
of Brooklyn. New York, United States of America.
PROVISIONAL SPECIFICATION left by the said William Morgan
Brown at the Office of the Commissioners of Patents, with his.
Petition, on the 10th July 1872.
*T, WILLIAM MORGAN BROWN, of the Firm of Brandon and Morgan
Brown, Engineers and Patent Agents, of 38, Southampton Buildings,
London, and 13, Rue Gaillon, Paris, do hereby declare the nature of the
said Invention for "AN IMPROVEMENT IN UNISON STOPS FOR PRINTING TELE-
GRAPHS," to be as follows:-

page_text: action by the revolution of a cog or projection on the type wheel shaft
and a lever or its equivalent, operating by a printing magnet in connec-
tion with counter springs and a detent. It is composed of a disk or
plate mounted on a pin of the instrument frame in a convenient position
near the shaft of the type wheel; it has both a partial turning movement
and a lateral movement on the pin or stud.. On the shaft of the type wheel
is a cog or projection which is brought into contact or released from the
disk by the lateral movement of the disk, the lateral movement being for
the purpose of disengaging it from the cog.
The partial turning movement of the disk is produced. by a projection
or cog on the type wheel shaft in the revolution of the type wheel, and
its lateral movement is produced by a lever or its equivalent in the
upward movement of the armature of the printing magnet. A side
spring serves, to. reverse, the. turning movement of the disk produced by
the said projection, and a coiled spring around the pin serves to reverse
the lateral movement thereof produced by the lever, or a coiled spring on
the pin arranged so as to have both a longitudinal and torsional action
may answer both purposes.
A spring detent holds the disk in its step-by-step movement produced
by the cog or projection, the disk having three or more ratchet teeth on
its adjacent edge to receive its detent. The step-by-step turning move-
ment is effected by the projection striking cog projections in the proper
position on the edge of the disk, moving it one cog or step each time the
projection comes round in-the-revolutions of the type-wheel; and when
both or all of the cogs have been moved along thereby the next time the
projection comes round it-strikes-a-point-on the disk where there is little
or no notch or depression in the edge of the disk and is prevented from
further: movement thereby, so that the type wheel' is stopped. The
projection is so located on the type wheel shaft of each instrument in
the circuit as to stop the type wheel when its zero or period type is in
position for printing, or any other desired position, but is- uniform with
all the instruments in the same electric circuit at least.. A. pin on the
face of the disk serves to prevent the disk from turning back further.
than the position it is required to return to by striking, the lever, or any
other suitable stop.
The somation of the uniona
-
11

page_text: its further turning if continued long enough, and that the operation of
the printing magnet releases the disk from the projection and again sets:
the type wheel free to move.
In order to stop the type wheels of all the instruments the transmitter
must make at least two whole revolutions and part or all of a third'
revolution without in the meantime operating the lever by the printing
magnet, in order to lock the disks of all the instruments. Hence, if the
index of the transmitter is turned three revolutions at any time without
operating the printing magnet, all the instruments in the circuit will be:
brought into unison; then by making a single movement of the printing
key all the type wheels are set free by the lever in each, at the same
moment disengaging its disk from the projection..
SPECIFICATION in pursuance of the conditions of the Letters Patent;
filed by the, said William Morgan Brown in the Great-Seal Patent-
Office on the 8th January 1873.
-
TO ALL TO WHOM THESE PRESENTS SHALL COME; I, WILLIAM;
MORGAN BROWN, of the Firm of Brandon and Morgan Brown, Engineers;
and-Patent Agents, of 38, Southampton Buildings, London, and 13, Rue
Gaillon, Paris, send greeting.
"
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Tenth day of July, in the year of our
Lord One thousand eight hundred and seventy-two, in the thirty-sixth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said William Morgan Brown, Her special license that
I, the said William Morgan-Brown, my executors, administrators, and
assigns, or such others as I, the said William Morgan Brown; my executors;-
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the terni-
therain expressed, should and lawfully might make, usė, exercise, and
vend, within the United Kingdom of Great, Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "AN IMPROVÉMENT
IN UNISON STOPS FOR PRINTING TELEGRAPH INSTRUMENTS," a communication
to him from abroad by Martin F. Wessman, of Brooklyn, New York,
United States of America, upon the condition (amongst others) that

page_text: I, the said William Morgan Brown, 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
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 William Morgan Brown, 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 accom-
panying Drawing making part of this Specification.
Figure 1 being a view in elevation of the improved unison device,
together with so much of the printing instrument as is necessary to shew
the connection and operation of the device; Figure 2, an elevation
thereof, shewing a view at right angles to the view in Figure 1. Like
letters designate corresponding parts in both the Figures.
The essential parts composing the unison device as "represented_ are a
disc or plate A; a cog or projection B on the shaft C of the type wheel;
and a lever D or its equivalent, operated by the printing magnet;
together with a counter spring or springs a, b, to reverse or undo the
movements of the disk produced by the projection and lever; and a
detent or pawl c, which retains the movement of the disk produced by
the projection B until the release thereof and reversal of the said move-
ment, all substantially as herein set forth.
The disk plate or other form of piece A is mounted on a pin or stud d
of the instrument frame in any convenient position near the shaft C of
the type wheel, either inside or outside of the side piece of the frame. It
has both a partial turning movement and a lateral movement on the pin
or stud, the lateral movement being for the purpose of disengaging it
from the
cog
Bo
The partial turning movement of the disk is produced by the pro-
jection or cog B of the type wheel shaft in the revolution of the type
wheel, and its lateral movement is produced by the lever or its equiva-
lent D in the upward movement of the armature of the printing
magnet E. A side spring a serves to reverse the turning movement of
the disk produced by the said projection, and a coiled spring 6 around

page_text: the pin d serves to reverse the lateral movement thereof produced by the
lever D; or a coiled spring like 6 on the pin d, arranged so as to have
both a longitudinal and torsional action, may answer both purposes.
The spring detent c holds the disk in its step-by-stept movement -pro-
duced by the projection B, the disk having: three or more ratchet
teeth ff on its adjacent edge to receive its detent. The step-by-step-
turning. movement is effected by the projection B striking. cog pro-
jections g, g, in the proper position on the edge of the disk, moving it-
one cog or step each time the projection comes round in the revolutions.
of the type wheel; and when both or all of the cogs have been moved
along thereby, the next time the projection comes round it strikes a
point on the disk where there is little or no notch or depression in the
edge of the disk, and is prevented from further movement thereby, so
that the type wheel is stopped. The projection B is so located on the
type wheel shaft of each instrument in the circuit as to stop the type
wheel when its zero or period type is in position for printing, or any
other desired position, but is uniform with all the instruments in the
same electric circuit at least. A pin on the face of the disk serves
to prevent the disk from turning back further than the position it
is required to return to: by striking the lever D or any other suitable
stop.
.
The operation of the unison device is based on the principle that the
revolutions of the type wheel will bring the disk into a position to stop
its further turning if continued long enough, and that the operation of
5 the printing magnet releases the disk from the projection B and again
sets the type wheel free to move.
In order to stop the type wheels of all the instruments the transmitter
must make at least two whole revolutions and part or all of a third
revolution, without in the meantime operating the lever D by the
printing magnet, in order to lock the disks of all the instruments.
Hence, if the index of the transmitter is turned three revolutions at any
time without operating the printing magnet, all the instruments in the
circuit will be brought into unison; then by making a single movement
of the printing key, all the type wheels are set free by the lever D
5 in each, at the same moment disengaging its disk from the projection B.
Ordinarily there is never more than a whole single revolution of the
transmitter index before the printing key is moved to print a letter or

page_text: character, and at every time this is done it sets all the disks free, whether
it has moved forward one notch or more, so that this unison device never
interferes with the ordinary operation of the instrument.
wwwave and av rely on it sets and Me¨UISKS free, whether
it has moved forward one notch or more, so that this unison device never
interferes with the ordinary operation of the instrument.
Having now particularly described the said Invention, and the manner
of performing the same, I would have it understood that what I claim 5
is,―
1. A unison device for printing telegraph instruments brought directly
into action by the revolution of a single cog or projection B on the type
wheel shaft, substantially as herein set forth.
2. The unison device herein described, consisting of the disk A, which 1
has the movements specified produced by the cog or projection B on the
type wheel shaft, and the lever D or its equivalent operated by the
printing magnet in connection with the counter springs a, b, and detent c,.
substantially as herein set forth.
In witness whereof, I, the said William Morgan Brown, have here- 1
unto set my hand and seal, this Eighth day of January, in the
year of our Lord One thousand eight hundred and seventy-
three.
TTTTTATE MODON DRAMAY