New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1897-03-21

THE ROGERS TELEGRAPHIC RECEIVER.
have had some slight acquaintance for at least TWO
wears: but a pair of perfected machines for exhibit
ton purposes have only been completed and put on
trial in this city within the last few days. Mr..
Rogers's representative is f. < Norton, whose Office
is at No 80 Cortandt-st The latter declares that
?a words minute are sent over his short expert
mental line Of three miles, and that equally rapid
service Is possible between New-York and Chicago
only one ordinary telegraph wire is used for trans
mission purposes. and the message is printed by
the receiving apparatus fast 1t comes in pages
In strips
To prepare a mesa age for sending by the Rogers
system. a young woman manipulates the
keys Of typewriter exactly as in ordinary cor
respondence This operation not only produces a
regular typewriter copy, which is filed in the send
ng Office but 1t also electrically actuates another
little machine beside the typewriter when perlo-
rates an endless strip OF paper. an inch and quar-
ter wide The holes thus made are small and round,
and are clear cut. For some letters only one hole
is needed for others ten although the number re-
CURED seldom exceeds four or five. But in any case
all the holes belonging 10 single letter are punched
smulta neOuslv. and lie in straight row stretching
across the strip Their relative distances from each
other and from the central line admit OF enough
combinations for the whole alphabet and few
punctuation marks. no figures are employed Num-
bers are spelled out. 1t will be noted that the only
chance Of in the Rogers system occurs al 'is
stage Of the proceedings. Thereafter there Is no
possibility of inaccuracy because the human ele-
ment is eliminated.
Tho sending and receiving apparatus a' any
given Office may be combined in one instrument
but for convenience in description they may De
mentioned separately and may be thought OF DIS
mounted on different desks. The conspicuous
feature in both Is lywhee about eighteen inches
In diameter and having fiat two-inch rim. Inc
wheel is kept revolving on horizontal axis by
means of betting which runs down TO small SIX
or eight horsepower electric motor, operated py
a current taken from ordinary incandescent light
wires The speed is regulated mainly by rheostat'
which controls the amount of current admitted;
and about thousand revolutions minute are
provided for.
on the axle near one end is mounted metallic
spool between which and a fine copper wire brush
above it the perforated strip OF paper is fed when
a message is being sent. The brush is composed
Of ten "styluses." exactly corresponding to the
zen possible positions Of the holes in the strip
The feeding mechanism always brings the holes
directly under these wire points and the latter
reach ,hrouch and touch the spool whenever 1t is
possible The paper. instead OF moving along at
d uniform rate remains stationary during one
exact revolution of the fywheel. and then is in
Unanimously showed forward far enough TO bring
the next cross-row Of holes under the brush BY
means which need not be described an electric |
current Is switched into each one of the styluses
In succession at regular intervals, the whole ten |
being served just for each revolution. NO |
NO get their electricity the same time. though
As dry paper is a good insuldtor, no current VIII
pass from a stylus the spool except when there !
IS a hole. By connecting this rotating spool with
the main line. therefore. il is possible 10 send out
on a single wire series OF short electric impulses
spaced so as TO correspond to the holes in each |
oross-row.
4, the receiving Office the hywheel is kept at
precisely the same speed the one in the trans
nitter Each one of the possible ten electric |
impulses coming in during single revolution is |
automatically switched off by separate route 10 |
a peculiar form Of typewriter on the desk beside |
the receiver Although the message Is repro |
duced on a page. in ordinary letter. in odd |
but leglble Roman letters. only eight keys are |
employed. singly or in combination, in making |
them. The characters thus used straight |
strokes long short. upright horizontal or slant
ing and are susceptible of being combined into |
pretty decent capital letters. Each Of seven OF |
the KEYS will respond only to particular i'm |
pulse in the possible ten of a revolution period. |
The eighth key is affected by any one Of the three
other impulses out of possible This last key
makes an upright stroke in three different posi- |
uons-cenral or at side or the other Of a |
central position.
At the completion of one line Of print the type |
writer carriage is swiftly moved back to the start
ing point and the feed roller is rotated 10 give the
proper space between lines. without human inter- |
position The receiving operator gives the machine |
no attention whatever, except to tear off mes
sage when il is ended. An endless roll or paper |
Instead Of separate sheets is used with this /,
chine.
II Is absolutely essential to the success OF the |
Rogers system that the speed OF the ny |
wheel OF the receiving instrument shai nc eHdcty
me Same as that Of the transmitting hywheeL ana |
siso mat specially marked point on the one shdIl
W al the same Stage OF its revolution get US say
uppernosO as that same point on me otIeT ma |
chMe II the difference ever exceeds more tndn
onc-lentn OF a revolution, then the TWO machines |
aie out OF step, and the keys OF the receiving FP
mltser W!ll respond wrongly 10 the holes III the |
perforated strip in the transmiJter
me way IN which the two wheels are KEPT az
soiutsIy 'synchronous" Is of the particularly |
rossi features OF Mr.. Rogers's appaT Up |
"a Nle nm. on side OF the receiving wheel |
sue carefully backened and placed in the shad-
~, .uny electric spark is excited AT the msiahi
is ne corresponding point the sending Wheei
on H., nost The receiving operator keeps ms eNo |
vebeei = spark ana so regulates the speed OF ms
mat the spark will when its site IS up
AZ sn 81, NIUE nxed pointer added 10 the macnlhe
NAIL "tu 70 the eye. The speed is controlled pr.
WHY Vy adjusting the strength Of tho current /
se - az Is employed But this instrument Is set 80 I
ana give give slightly greater speed than necessary. /
10 ,b ner me operator applies his finger tip lightly .
Slow I'M oil the wheel, a brake, and mus /
49, Mheel down. keep his spark AL I
PCsile The pointer - - ''"'''' " o - J
v4n,iee may be the future Of Mr. Rogerss IN .
genuiiy. '""o''es ihuch doh'iao'o III