davidaulloa/AmericanStories huggingface dataset:
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28

Several notifications Of the transmlt'er, now cow
ever have been invented. Edison found tha fca
Ysin noory conducting material had It's elecui, ,
RESISTANCE (Which is the reverse Of coneuTs' a8
greatly affected by slight changes OF Shicb the
current flowed where The SOUND waves Oh VIZ, ,n'
voice would mpinge upon II the freGiIency
The Blake transmter IS Inodlilcat.HHn W
device the essential difference from ,e ~ fhicx
nsS wire between the vibrating menDrans
and the carbon disk. There are iSur uen,ion. and
shsse ai expired in England on January ~, .nis
year Ordinarily that oecuT snss in this country
spDlied for at date subsequent 10 'he 'o'''s"
's I4euever Blake DID not receive broad patent
coverng the principle involved an appC ' ., bo
him has long hung fire ,Snr hSrr@rs swept
swav an issue might possibly be Inane 70 C, rrr
TAM bich would give the latter an extension OF
,trer exclusive control. But there are some osheI
patents to be considered IN TINS C. Mae 2 on his
micropnone an nr 18ei which may prove serious
nher, II has been claimed that Edsons are
snvaIId now because those which he TOOK OUT r ~.
he same inventions in England have eXpiIrI;
Ea,eon's counsel hold that the statutory iinl,a'.S
covers only cases where the auplcatlon' hct nv
issue abroad. was prior 10 the similar act IN
ica and similar one Bate rcirlgeiitI ,
has gone 70 the United States Supreme Court 10 De
determined There is chance therefore; ina
. in the Iate case Berliners claim IS FOR me
method Of producing in circuit electrical uhuun
tIons similar in form 10 sound waves. by cduS."s
the sound waves TO vary the pressure Dew, q q
electrodes IN constant contact tor se'|.a
suit 70 iuyaliate this patent has been brought anu
it will probably be heard In Boston next Nay As
nearly fifteen years yet to run. But II TINS patent
b. upset. and Edison's prove inyalid ana no sm,
one else the principle involved in the Blake trans
mitter will be public property. ,,s,.o, no,er,s
eli remain in force 1t Is possible that some other
transmtter equally good may come to the 'front.'
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28

here indicated. There is in getting up things
which the car builders will not touch.
Scores of couplers OF the Janney class have
been patented. and many Of them in actual
use Every few months the Master Car Builders
Association has some competitive tests free to ALL
nj vhio, these devices are subjected pretty rough
treatment to discover their defects Some OF the
hre0kages are due to poor material: others result
from faulty design. The former chargeable TO
tha manufacturers the latter deserve the attention
If inventors. one of the weak points in most of
tho various Janney type couplers Is the knuckle
strength is of the prime requisites of perfection
in such apparatus. MI .. ,,.
,I.,d,o.tnne are TOO complicated. They have too
NV narts and joints. Indoors the model works
har,iflv: out doors. IN actual use, the mech
nvjen, itself fills with rain or snow and freezes up.
CO.. ont of order in some other way. goes
sn't,sb under slight shock. And third. ii is de-
.attn,iia that a coupler be truly automatic. Most OF
49, ,bot are called are not self-Setting well
"a eolf-locking \ truly automatic coupler would
- l.ft when one Is separated from another, in
eovch a condition that without being touched by
- band or a lever string in the time.
a. 'vonjd connect itself Immediately with the next
.isoe - coupler Of the Janney type which Will do
~ do Il better than any other one and combines
e,rSnrth and simplicity in the highest degree, he
0o,icbf to be able to find market for II without
"Inotber fact which must be borne In mind Is that
.ort.s ~ natents covering almost every conceivable
80, If a coupler. have already been taken out.
prd b1u~h, ND by OF the manufacturers or
counlers II would be almost impossible Tor an IN
,entor even If he had the capital. TO go ahead ana
Manufacture his own coupler. as he would be liable
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28
mr. uoT-JD SELL HIMSELF FOR HIS f'hih

Fran the Detroit Free Press.
mos, extraordinary incident. indicative, No.
dnh, of the desperate state "i MINI , w. NV 81
,DnDv, have been reduced by The pirNAIllns na,"
timrS occurred at Emergency liospi'm Ia 49, he
man about fory-fve years ol ds' In ,m, a. ar
hos,tal and asked to see the super YEA
,,'r,i,,ici,n i'm charge When that iuh'tv4n"t ,ha
pm pm '' nrJ manfred the strangers busheSS' ''e
man said. 49,. C,o,or am n painter hy
,r,i.. ana have a family dependent on h'o ,h,',,h /
I',. n..n ont Of work for long 'lliI,, hi, a.
i,,. s,upht il constantly ana hoile ny @ ,',.rv
i.r,.,t,in,. hat WAS offered me Wlii'n
uite NV family now redu.'i 80 al yni, my
MI circumstances. and want /" S'' ' '
Ln,,, for g., for dsscctlng purposes ot,r ~ ,he
~. d,cinr was astonished AZ inc n". w h"s,iinI
nr,,,stlon and said facctiousy 'hat Wv ,h grnnis
h ,'"' 49, wait good while before the soouS
were delivered. At, c,orcr Iust as soon
.s I ind that the money has rcach'i i ,is 80, NV
yin rommit suicide and leave an o'"e' '"'' my
boiy t dncinr had been astonishcd before; u" WI
., ,,orc ca nf the last remark OF MT 49,.
- a. sus,.ci that he dealing WI, 49,, in =,
g., ,bnu,.h ne appied tn" usual t'SiN Il, ,,raIio -
l'", ,,'rs',i,n which followed. ne "aS ",, "a :,
., ~, egl,r-t alteration or Hllhu 80, a. Iii, !,
a., G.rer baI broodcd long over ~ ''n a, ~,
81 ,rn,idr his family with the nec1sshi nyon Lost,
- bo b,d become desperate, anu M H. loctor IA
~, -, Tho fact that he was ASKING Ut ~
ic",,, a murderer or murderer ao'''"'
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28
INVENTIVE ENERGY WASTED.

USELESS INVESTMENT OF TIME. TROUBLE AND
MONEY on CAR COCPLERS.
In view Of the fact that thousands Of car coupiers
have been patented and thousands more have been
Invented without being brought TO me at
tenton OF the Patent Office. II seems strange 10 "a
good many people that the perfect coupler mas not
yet made It's appearance. Yet good authorities III
sist that such is the case Ana. considering 'he
economy thus TO be promoted. both In car repairs
and payment OF money damages TO injured en-
,ployes II is reasonable to believe tha the railway
Companies are really anxious to have the best tihhg
out So long however, as there Is a possibility
Of Improvement It would be natural II some Oh
these corporations hesltated to incur the expense Oh
adopting one Of the present styles In place OF some
thing else almost goo
A fact that partially explains the ialure 10
get the perfect coupler is the unfamiiarHy Vi
most inventors with the real needs or the present
situation There Is an organization In THIS country
known as tho Master Car Builders Association
which several years ago. voted 10 ad0pt oiy 80
couplers as were included In the Japhey -
that is having "A horizontal swing anu yer "a
hooking faces. A we-knOwn ana dlsnteIsss.eu 60"
pert said a Tribune man a ie" iiIon.i,S 60
1T Is simply a waste OF energy LOT NhNen,oi ~
do anything but perfect his style or 70 stuuy any
thing but details The general principe mas peei
enectualy decided" He might nave added WIN eq a.,
Vuthfulness that Il waste OF Hlo"ey mo- ~
patent other kinds coupers. CearIy theh' Ss'v
cess Ii 10 be achieved only by following the P"'"
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28

netizcd. and reacts upon the current in the cop
Der wires ana by changing the distance to which
It is thrust into the coil, the seI-lnducuoh may DE
regulated , l horoo
the current Induced at q also had 80 electrical
beats per ond. The wires ara "thcr apparatus
along This circuit however, h3d a haiuraI perlCd
or tendency pulsation Of their own, mat was IN
like the other What Dr Pup.n set OUT To- o. 10
make il toincde with The alterations Of The In
duced current or Of the mpresse1 w.,
force" in other words ne uidSrtDok 10 .Ine ms
circuit lie did this not by tlsh'ening or loosen n,
Hanging the elf-lnduction Of J and the capacity
of H. When the two conceded, there was EI'd'
az a' ,h I@' Current flowing through mis- circuit The
lecturer had two or three way OF ae'ec,HiR "a, ths
,he condenser: the two tinfoil-cover,d ends Of a
,n@ tibe were also attached TO the latter; and
0naIly an ordinary telephone at ], WIN morn VI
TO magnify ahicS could be- "id loosely around j. At
certain point in Or. Pupin's adjustment OF the
condrnser plugs the needle OF his meter moved up
cor sctIe rapidly a bright glow developed in the
v Ync nm tube and tho telephone sounded Ike a
bugle-all simultaneously. The TWO SETS Oh wtvcs
rns ,f The sound emitted by the telephone had
The pitch resulting from 80 vibrations a sec4hd.
I'LL waves in the primary and secondary cur
rem there were also som iainter adaIomar
which In the telephone gay octiNes VI nd
" The chief tone. But this was Observable only
ol az ,hc DYNAMO was running idle and as soon
s The circuit Eff was made to Include a motor mat
as a. When the machine was set at work. the har,
@ bcnomena Of sound for. when the vibrator
70 70 tno raisonator is loaded with bit OF wax har-
leo noticeable during this experiment that the
was " from the telephone was fuller after the load
was put The e Go bro Sg cf the go %h
allow mon the primary and this in turn strength
rcao' ,bc other secondary current
ened tlS 20 nracfIcal use TO which DR.. Pupn's ap-
a Inf may be devoted he said Is the analytical
parat"o, oIiernating currents In this respect the
STUDY oi sarved electrical science very much as Il
resol1a,d1 does in optics by resolving beam OF light
prism uomnonent colOrs. other electricians. who
into IFS 90 measure electrical wave-lengths and
sayg resonance effects have worked with high
fre9uedncGyo sciIaons second None OF them how
have given such aen'Dn n eS low
no one has used the telephone to reveal
resonance a., number each second. cease to be
than SsV Dr pupin's method is applicable only TO
currents OF fewer OSCILLATIONS INA" '"'S but at
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28
SWINGING AOUEDTCT.

ONE ENGLISH CANAL CARRIED ACROSS AN
OTHER on A DRAWBRlDGE
The recently opened ship canal which connects
,he CITY Of Manchester England, with the sea- is of
commercial rather than engineering Importance.
There were few difficulties to be overcome IN IT'S
constructions: yet of the novel features OF the
.-rr,sa ,s so curious that II deserves passing
notice II is a very common occurrence for one
,ailroad track TO be carried over another; much
loss frequently we canal conducted across
tbe line Of another but to have the intersections or
two water routes provided with drawprldge IS still
more unusual. This. however was iouhu the most
satisfactory way OF dealing with the problem pre-
.a 1rhere the route OF Manchoster's new high
ov ~ the Mersey ran up against the old Bridge
wat canal leading southwark from Wigan, in
40 1mef what reasons existed for not having grade
oesine do not appear; but It does appear that such
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28
SCIENCE AND MECHANICS.

.r>-DrpING GAS-BURNERS MORE SAFE.
Electricity has not yet displaced gas altogether as
n,,,rant nor will it do so for a long while yet.
a large number of people therefore. continue to
have practical interest in gas-burners' An attach
- -, for such devices has recently been patented by
.ns.i, = Field of Los Angeles, CAL designed to
sorye n good purpose. One occasionally hears OF
,ia, or complete suffocation from carelessness IN
demonstrating gaslights in sleeping rooms lnexperi-
arce inattention. fatigue or possibly intoXicaton'
prevents the valve from bcirg properly Closed
when the gas is turned off. and probably TINS mas
- ,han tho alleged blowing out of the light TO do
with the accidental asphyxiaton reported every now
and then by the newspapers Iroceellhs pH INA I
1hSorv at any rate Mr. Field afiiXes to the valve
stem a light spiral spring. which contlnnay tries
10 shut off the gas. When the gas Is 'uiueu OH d
iointed thumbpiece may be caught IN any , one OF
several notches. and held there autoha.S1iy 20
nut the light out II is necessary oniS 90 ~ %
The thumbpiece. The spring then closes me EaVe'
and closes IL tight. The mechanism 1o's lio' -,
fere at all with the regulation OF the size OF the
flame
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28

PAPER FOK TfPEWRlTEkS.
SUPERIOR QUALITY OF THE AMERICAN PRODUCT
FOREIGN MARKETS INVADED.
1t Is recognized by foreign scientific publications
that the United States not only makes most OF the
worlds typewriting machines. but also most OF the
paper used thereon. especially that OF high grade
Yankee manufacturers compete successfully
with those OF England France and Germany in
what are 10 all OF these countries foreign markets.
but also in the British. French and German home
markets. When 1t comes to fine papers, this par
tcular success is due to the purer water often
used. the better machinery and the Aexander-like
enterprise OF the producer
When 1t comes 10 paper for typewrters. Of which
there "A great variety the essentials are good
finish and stock heavy enough to stand ensures
without leaving hole Some OF the best stationery
intended for with pen is unsuited TO the
machine. by reason Of its rough surface. the
smoothness impaired TO book paper by size and
caendaring is not, however. quite what is desired
for typewriter documents. \ bond finish gives
about the right surface This is secured by sand
wiching smooth cardboards In with the sheets.
applying stiff cover and then putting the stack
under rollers weighing two three tons The
labor involved In plate pressure Is important
item in the cost OF such paper.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28
,y,ropvs 70 SCARE THE ENEMY

From The Troy Times =, ,h War
According TO rcd uniforms were first adopted 10y, 10y
the Emperor valeras MaSm%S rsh T'ar by the
Eoman s ,her avn Blood TO this day the children b
s 81 usa"d lola til 1G"i ns IS md French
french rv 'onpn,b, The same notion resprcunS .m
p qaG coats Of British d4s bens on the ded Of
Gent Rome make them look Here FOR thr sh hnir
batt' ~ 80, Nrlrcs Of frtghtful b'astS Oh IT,,
reason they pi i. From this odd custom springs
shields ana and armoria bearings me inen ne %
modern cIeSts ,.rv bv such devices has perh pei
soaring the cie'S recent times Tall bearskin
Ees aGoped to ea %aE OF WON
taller 10y ,nIT,i nf grenades for scattering a"o"s
The ranks Of their lo''
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28
DIR. NJ l. PUPINS RESONANCE EXPERT

MENTS.
INVESTIGATING low FREQUENCY ALTERNATING
CURRENTS WITH A TELEPHONE
Most schooboys are familiar. through reading X
not by observation. with the phenomenon o'
resonance" II is well-known that a tuning-fork'
previously silent can Se set a humming, II a vio-
lin string near IT, and having the same pitch, be
first sounded. This sympathetic action or the 'a'su'
on the steel IS due to the fact that both Nipfa'e
at exactly the same rate. II. owever by IoosehnG
or tightening the string. It's rate OF vibration anu
hence its pitch be altered. the fork VIII not re-
sucnd DR. NJ l. Pupin. Of Columbia Collese'
performed some experiments a week or two ago De-
fore the New-York Academy OF Sciences 's'cuoh u
Astronomy and Physics, and TIE Institute oil r'''-
trical Engineers. which show mat sHl''"' en-
NAV be produced by securing certain sE"i''"S
between two alternating currents OF elecFlcIN'
10 ,ectured on this subject at least once last
sprine but in his more recent talks his apparatus
was somewhat different ana ms r"V'lat'onS ,yi,,
carried little further than on the former nyYt,
His plan Of procedure may DE- iUoe'dy a.; H. fener-
bv the diagram herewith y dynamo AZ - - ~
ated an alternatinS cufFen,' ,m3mciion coil which
circuit u. At { was an '"tu' l., ,hot was lei
excited one secondary current + r. tha' "H 49, irt
Rv a small coil at G. At II was condenser ana
at ! sef-nducion coll lnr i1liry cd ~ fyo
eets Of parallel metal plates. ipterleaNcd ana iau
lated from each other and having one wire OF
wire With he other set. by inserting plugs
in such an instrument the electrician can
thereby alter its capacity" An induction c9il
g. composed Of a good many turns or carefully
Insulated copr,er wire, SO wound rs 10 leave a
hole like that in spool Of thread. running .ngth-
uiee Two forms Of such apparatus are tamil
iarlv known In one. only single piece 81 wire
&c used; in the other second piece or dHer-
an, eize is wound over the first and current
sent through one wire "1nduces' current in
The other In this experiment II Is the former
,,na ~ coil which IS introduced at j. The trans
farmers at { and G belong TO the latter type.
If now a bar Of soft iron or Il bunch 81 straight
iron wires be slipped into the hollow Of either
Kind Of coil the bar bunch IS temporarily mag
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28
PRITATE CAPITAL WANTED.
WHAT THE RAPID TRANSIT COMMIS-
sIONERS CONSIDER NECESSARY.

THEY SHAKE THEIR HEADS AT THE CITY
LOAN SCHEME ~ THE WILSON PLAN
IT WILL PROBABLY BE LAID BE-
FORE THE MAYOR AND AL
DERMEN on TUESDAY
The Rapid Transit Commissioners in hopes
that private capital be secured to build the
proposed Wilson underground road. They have APP
proved in general the plans presented by II. T.
Wilson 4 Co. but they rather sceptical con-
corning the advsabllty OF the city lending its credit,
If a constitutional amendment can be secured
TO allow the city to lend funds to promote n pri-
vatc enterprise. There is some doubt 70
when the Wilson plan Will be laid before the
Mayor. but it Is thought that after the meeting OF
the commission Tuesday the plan will be In
such SHAPE that It can be presented to the Mayor
and the Board OF Aldermen. The Commissioners
think that the proposition IL tempting that pri
vate capital may be glad to get hold OF the scheme.
The plan cannot come before the people until next
November. and that. Of course. IS one reason why
the Commissioners would rather have private cap
ital handle the enterprise The Rapid Transit act.
according 10 OF the Commissioners. should re-
ceive the attention OF the present Legislature and
be slightly modified in order to make the present
plan attractive one 10 capitalists. one OF the
Commissioners said yesterday that he confident
that with some modification OF the Rapid Transit
there would be plenty Of capital ready TO take
up the Wilson plan. thus making vote on tho
proposed constitutional amendment unnecessary.
Another Commissioner said that the commission
had pledged itself 70 the Wilson PLAN but that
they thought IL the best thus far presented.
AMI If the money part OF It could be satisfactorily
adjusted there would be no doubt that they would
consider the Wilson plan the only plausible one
Some opposition 10 the Wilson plan. II 1t Is ac-
copied and II franchise s given 10 build II. may
be met I'm the person OF Jesse W. Reno. who has
appeared before the commission so many tiines that
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28
OIL PAINTINGS.

ACHENBACH. ANDREAS
ADAMS, J. CLAYTON
ARTZ. ADOLPHE
BAKER, W. BLISS
BEDINI, T.
BILLET, PIERRE
RISCHOF. 6.
RLAKELOCK. RALPH a.
BOCIMAN. G. vON
BOK. THEO. DE
BOIDINI G..
RONIIETR. AUGCSTE
BOTGHTON. GEO. II. ny examples
BRETON. EMILE
BRETON, JULES
BRISTOL. JOHN H.
BROZIC. NACSLAV
BJ MIXER. DENNIS NJ.
CARLSEN. EMILE
CARPENTER. +.
CAIN. JEANCHARLES BY examples.
CUAIGNEAT. +.
CHAPLIN. CHARLES
CHARNAY. ARMAND BY examples.
CHASE. HARRY
CHASE. w VI. BY examples
CUEIMINSKI. JAN Won
CLATSEN. GEORGE
COAST, OSCAR II.
COROT. j. Il. G. BY examples
COTRBET, GISTAVE. nv : examples
cOTRTOIS. GUSTAVE by . examples.
COUTURE. THOMAS
CRANE. r. BRUCE
DAI'BIGNY, G. L. by 2 examples.
DAVIS. CHARLES II. BY examples
DE BLASS. EUGENE
DECAMPS, A. &.
DE HAAS, J. II. J..
pELACROIX, EUGENE
DELPIIY. G. II.
DEMONT BRETON, NIRGINIE
DE PRATERS. f.
DE SAIXEA. j. ID.
DESCHAMPS. LOUIS. BY examples
DEWEY. G. MELVILLE
DIAZ ~ V. ny 2 examples
DIEI.MAN. FREDERICK
DUPRE. JULES. BY examples
EATON, G. HARRY
ECKENFELDER, r
EDELFELDT. ALBERT. BY examples
EICUELBERGER. ROBERT
ESSEN, JAN VAN
FOTACE. G.
FRANCAIS. +. l..
FROMENTIN, EUGENE
FROST. A. Il.
FULLER, GEORGE
GAY, WALTER
CLIFFORD, r. SWAIN. By examples
GOIBIE. RICHARD
GROLLERON. T.
UAGBORG, A.
HAMILTON. HAMILTON
HAMBURGER. EDMUND. BY examples
UARLAMOFF, ALIENS. BY 2 examples.
UARPIGNIES, HENRI
HARRISON. ALEXANDER. BY examples
UARSLEY. JOHN CALCOTT
HART JAMES VI.
UASSAM, +. CIIILDE
HAWKSLEY. ARTHUR
HEFFNER, CARL
HENNER. j. J.
HENRY. T.. l..
HOMER. WINSLOW
| HONRATII r.
| INNES. GEORGE. by II examples.
ISABtY. EUGENE L. G.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28

TO infringe some one else's patent. 1t would prob
ably be wiser. If he get patent at All to sel II
TO some one holding others. The sensible thlng 70
DO is 10 consult I some expert. either a railroad
superintendent or n master car-buildeT. ana see Il
the invention contain any originality or merit
Such officials could and doubtless would II properly
approached, point out the weak points or the tninS
Then. either out OF his own pocket or Win h'ip'
the inventor should have few Of his couplcrs made
and get them tested practically. Thus ne would
0nI ont for himself and show others what MS
idea really amounted TO. Without a good know J.
edge of what others have already done. ana OF me
faults Of existing devices. there Is little nope OF
man producing the perfect coupler which railroad
men profess to desire.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28

For poverty of the blood and all
other conditions resulting from consti-
patton, go by the book on Beecham S
Book free, pills 25c AT drug
stores. or write to B. +. Allen Co.,
365 Canal S., New York.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28
ARTISTS REPRESENTED :

ISRAELS, JOSEF. BY examples
JACQUE. CHAS. T.. BY examples
JACQUET. GUSTAVE
JETTEL EUGENE
JIMINEZ. LUIS
JONES. H. BOLTON. BY 3 examples
JONGKIND. J. Il. BY examples
KAEMMERER +. ii.
KNATS LUDWIG. BY examples
KNIGHT. ID. RIDGWAY
KNIP. HENRIETTA
KOEHLER. ROBERT
KOWALSIlI A. w. BY examples
KUEHL. G.
Lang. HEINRICH
LATRENS, J. =.
LEADER. b. W. BY examples
LEFEBvRE. JULES. BY examples
LEROLI.E. HENRI BY examples
LEROUX. CHARLES
LESSI. TITO
IIPPINCOTT W. T..
LOHBRICHON. r.
MADRAZO. RAIMUNDO DE
MALI. CHRISTIAN
MARKS. JACQUES. By examples
MARRIS. WII.LEM
NARR CARL. by examples
MAI'VE. ANTON. by , examples
MELIN. J. BY examples
MERk, +.
NESDAY. II. w. BY examples
NETTING, LOUIS. By examples
| MEYER. CLAUS
, MICHEL. GEORGES
MILLET. J. +.
NIILET. +. d. BY examples
|
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-01-28

THAT EXPIRING TENEPHONE PATENT
HrI1,s RECEIVER SOON TO BE ~ b~AN
ppoprpTy-sTAT1-s OF SOME KINDRED
PATENTS
Makers and sellers OF telephones nave pee" '0oN
ing forward eagerly 10 the expiration OF al III"
r,ortant patent on January 30. 1894 as thereby
market would be opened to them which heretofore
They could not legally enter. The particular pa'en'
here referred TO is that granted to Grahain zen
FOR his receiver In this device. It Will be reihe"
bered a small bar magnet in the tube terminates
aust short Of a thin metallic diaphrasIn' OF men"
brane whose vibrations reproduce the s0und W
tered al the other end Of the line THESE NlD
-ere caused by he variations in the HldeHet > a.
tractive power. and the latter result from & se
~ Intensity In the electric current let IN from VIZ
main line and sent through coll OF me copper
wire around the end OF the magnet heAt te u ,
i,rhragm This patent. like the fundamental one
knvering the use Of electricity In transmttlng ar
lSiculafe speech and expiring last March was VIZ
broad in its provisions. and shut Out great 'u'e'
of inventions. ~ I'LL. a,coro,, IN shane
was Identical in principle with the IeceMeIi 4Ha
g. tho vibration OF IRON GlaphraBW IN .Ie
,s1onthniece before the end OF magnet Narieu ,.e
t,rer1ih OF the latter and hence also OF me cur
1ent Induced in a coil surrounding the magnet