Los Angeles daily herald., 1888-06-10

X{rul 70 vary Us fuifir 1n tiie wax.
te The eound II recorded how. N rs
>beslbic 10 say, but it Is. Dlder tho
pro3etpe ihe Ene groove in tho WAX
vs gieat iiTeehIArliss it gces doeper
81 tlinllower; shows Tong ddHles and
*f1ilaf dols However i nnay ha, n
Mini record o. iha sound. ls thtre and
mn be reproduced imn9diaiely or
[fe hence.
ftyanre foaifro Of this eo6ui record
/<his. that q skilled operator can. IN
Nay0 cxBefifdeut, dispense entirely
li tlsh bit 5i speakfug-,aba, diaphragm
"A reccigine-iool, md by holding oue
of e aAarppe'hted pencil, Tor in
nee, between bis teeth, and resting
point on tie wax, record the round
}iIk voice on the cylinder nearly as
t,rntely as with slie perfect machine.
&ing dictated eeiter, or eeYerd
tra, ycu surrender the instrument to
|tfk, u you wish, Or slip'oR the wax
2udef photograph blauk air. Edison
h it--aiid hand 10 over to him to
6c on another instrument, while you
on dictating other letters on 2 fresh
Enk He will push back tho sliding
y 10 the starting point, and tnra tho
Nj eye Of the spectator 40 that
8ts on the blank and its
edle rests ia the groove IN the wnx.
o dinphragnl in this eye is q little
*rc delicate than Tire other and the
3dle is bent backward, SO that its point
|ply follows in the groove and avoids
dhnger OF making a fresh cut on its
IA accopnt. In place Of the bic OF
1lfing tube the clerk will adjust to the
1frnpm the fofkcd piece OF rullber
1inn described at the outset and place
tips to his oars. "A little wire Hpring
[.krep them there, or he may have. q
&dgear that will hold them in place,
Vic telephone tfansmitters are held to
bead OF the operators imam exchange.
n, by the way, the Office Of both the
Of bpeakiDg-tube and the forkcd RIB
Rtubng is the same as that OF any or
ary speaking-tube. gVv aD
(6 convey the sound you desire, con-
its Vibrations 80 that they viii not
diiiused over large space and ex-
le all other sounds. The machine
bo set in motion as before, and the
Edle, following in the groove, will
Nc the diaphragm to vibrate. The
ration Is the reverse Of the other.
Vic first Gaze the sound waves caused
diaphragm to vibrate and to operate
ueedle; In this the needle, following
BE groove, will cause the diaphragm
)4jbrate and cause sound waves. These
nd waves, or vibrations OF the air,
1g confined in the rubber tube, will
M the ear and in plain English will
| furned into the exact sounds that
NJ originally delivered into the speak
f~tube. Thus, the letter is repeated
'tle ears Of the corresponding clerk,
he writes it out on typewriter. He
run off q sentence or two and stop
phonograph, ii he pleases, while he
Ne them out by simply pressing upon
ker and disengaging the sliding arm
4 "A the screw, and then 80 on at his
1xenience. He may run it back on
+ rcverse screw and repeat as much or
little as be plesaes, or he may repeat
|Fhole il he wants to assure himself
he has understood the record cor
~. This is the cold, practical use Of
Z monograph, and that it is really
otical is demonstrated by the fact that
NJ Mr.. Edison's correspondence and
3 that of his private seeretary--and
Ie are loads Oils done in this way,
has been for some time.
Abe most interesting phase Of this
|6liod OF recording sound, to one who
a NJ looking at the credit side Of the
&punt. is the musical phase. Torecord
! music OF u piano II is necessary to SO
5ce along, marrow funnel es to collect
sotInd and focus it, SO to speak, on
! diaphragm. The record OF piano
5e is as faithful as the photograph OF
De and it is to achieving this result
N the inventor has devoted no end OF
- aud study.
)ome interesting experiments were
|de on Friday last. Mr.. Edison had
6ted a number of guests to the labora-
b and had in attendance an orchestra
bun pieces--piano, violin, cornet and
3onet. The tones OF the cofnet, layed
oe, were reproduced very accurately.
- oil the violin were sent back in
l[ous way. A chord was reproduced
HAT the violin tones were clean and
"A, but in a melody the tone came back
h that of a lpiccolo, and sustained
|es had tremolo that the violinist
.Fe& given t5uta. Mr.. Edison
Night this ws1tfsue to the fact chat
Alectric motor did not run with abso-
& Vaccuracv. Finally the whole or
estra played selection from ErAinie,
4 the phonoeraph gave It back with
N fidelity thatsathe tones of each in
nent were distinct. A short funnel
\ attached to the transmitting dia-
cagin, and the music could be heard
be distance away. The cornet's tones
Ue quite distinct of distance of forty
4, and when q piano piece was repro
~ II was audible to the members OF a
standing at the side OF and behind
phonograph, as well as TO those
tdiately in front OF the funnel.
her curious phenomenon was this;
speed of the phonograph was in
ed, the pitch OF sthe music was
h. a selection played on themiddle
tes OF the piano was raised in pitch
~ an octave when the phonograph
revolved at high rate OF speed.
bpos to this, Mr.. Edison hint
at some experiments which
intends to make. to deter
VI, il possible. ii certain insects emit
bids which are inaudible TO the human
because Of the rapidity of the vibra-
|hs OF the sound waves, He will con-
srch an insect in tho receiving dia-
Shgtn iar few moments with the
bnogfari revolving at very high
Bod, and then with a greatly reduced
he'd eDdsav4F to reproduce any sound
tmay be recorded.
Hhe phoneEraph is practicallyrea5y ior
Itublic In fact, II would have been
"a now had not the inventor made an
Movement or two at the last moment.
\ phonograph blank will contain about
D0 words, and when the record is no
lger required it may be planed off and
6ther record made. The blanks can
'used twelve or fifteen times by plan-
I off each record as it becomes USE
ID. above described, there is little
he tool on the sliding arm, which
rs the work. But this requires that
machine shall be run especially to
he down a blank, and recently MIR.
iaon hit upon the idea OF placing the
,ner in the receiving diaphragm's