Daily globe. [volume] (St. Paul, Minn.) 1878-1884, 1878-07-20
EDISON'S INVENTIONS.

ED)lSUN IS LIN Y ENIlUNS. I,
Past and Future Labo,s In the Cause OF Q
Science. s
Chicago Tribune.
Mr.. Edison went around Chicago yester- !,
day, taking in the notable sights of the city. :
1t was in the evening that he was inter
copied at the Grand Pacific, where he was
stopping. Naturally the talk fell on the sub
ject of
THE INVENTORS VISIT TO WYOMING,
and the reporter expressed a desire to know
its whole object, what was hoped to be ac-
complished etc.
s'There is as, you know, to be total
eclipse of the sun on the 2Sth, which will be
observable from the point where we are
going. I suppose you've heard of the
tasimeter?'
The reporter said he had, but intimated
wish to know more about it and it's possible
connection with the observations of the |
eclipse.
',The tasimeter,' replied the man who in
vents something SO often that it is difficult
to keep track of his work, sis heat meas
urer of very delicate power. Heat acts on
the carbon points, and the vibrations are
communicated by an electrical apparatus I'M
til they turn needle. Now, it is very evil
dent that the SUMS rays, those coming from
the centre, are hot,-quite hot, as you have
| found them here lately.''
The reporter perspired assent.
:'It isn't SO evident that there is great heat
in the rays near the suns edges. The
astronomers haven't settled about that yet
and the tasimeter will be applied to measure
the differences in the heat from these two
petitions of the SUM-
''HoW WILL YOU GO TO WORK!
We'll, the thermometer is good enough to
measure the heat flom thescentre. Now,
when the moon crosses the sun, all but the
edges of the latter planet will be covered for
two minutes ffty-seyen seconds. These
edges, or the corona, are what we want, and
the tasimeter, with its wonderful delicacy,
will measure the heat
ITO what degree of heat is it adapted for
measurement
ssWell, I couldn't say exactly To IL
, lustrate, however, / have held lighted cigar
off a considerable distance from the in
ACKNOWLEDGMENT feet for instance
) ceptibly.'
.'You are hopeful that instrument will
do what you claim for it in the eclipse?'
Eyes, don't see why it shouldn't. I'm
no astronomer myself, don't know any
thing more about it than a pig does about
learning Latin. What [ want to see is
!. whether my instrument will do the work
and guess it will
i; ''Have you measured the heat of other
> planets yet-the stars, or the moon?"
) s.Oh, yes. frequently. It is much easier
. you understand, to measure the heat of the
!, stars than the moon, for the reason that the
I; former shine with their own light, while
j; that of the latter is borrowed from the sun
n and possesses very little heat
CHOW ABOUT THE OTHER INVENTIONS?
j; Are you still perfecting them, pursuing ;
J; new tack?'
!. "Well, I'm principally engaged in getting
}; my inventions on the market patentins
;; them and introducing them to public use
!; etc. You see have to get out about tifteel
patents on every different invention SO as t.
prevent people infringing upon the things.
: elbow many patents have you now?'
!. ''It was something like 140 some time ago
7. I guess there are $50 or so now.''
JOu
!. some of your instruments?' observed the re
:. porter.
= 90, yes almost all the time
d GLOW is the monograph"
/. 'I've got machine, or several of them
e; down home that work beautifully. Thes
\. out here are no account in comparison
l. You can talk into the perfected machine, O
a. sing into it, and the air is produced with pei
i feet accurateness. The Last Rose of Sun
~ mer' comes out finely. | have experiments
n a good deal with the photograph, and you
L. be astonished at one or two things. One
"a that when you turn the crank backward
e; after singing into it the melody is repeate
y from end to beginning, instead of from be
S ginning to end, as in the first place, reall
= sounding quite as we'll as the original and i
=. some instances better. [ recolect my as
t. sistant singing 'le SABRE from Offenbacl
n into the photograph. Then he turned IL
IL crank backwards, and, to his mind, the tu1
h, was much better than the composers. An
Cd then he sang Yankee Doodle backward
g (he's become SO expert in this thing, you see
R r turned the crank forwards, and out wou]
It. come Yankee Doodle again, the notes
their proper muSical order as you hear thel
when the turSis sung right"
"What access did you have with
THE AERoPHoNE?'
is 'sOh, it works excellently in all the Q
periments we have tried with it, and seen
d to be just the thing for talking at long di
d. tances, as at sea. =
I'd E'And what about the megaphone?'
ne ''Well, that's working nicely, too. BY tt
- way, ought to have one myself oughtn
70 I?'' he added, with smile, referring to h
lg own defective hearing. eyes, he resumed
ne ''it's great convenience for the deaf,-bl
e. none of those people who howl through ea
It. trumpets would care to use it more tia
be once, as they use their present continuance
of The machines too perfect, and their ca
v would suffer-
s. Chow do you expect to remedy the nois
IT THE GILBERT ELEVATED RAILROAD,
9 to which the New York papers have directe
=, SO much attention of late?''
ed easily enough. [ have discovered ce
at tain defects in the construction, such
~ neglect to firmly unite the cross bars SUI
I'D porting the tracks, and the careless laying
to the ties. There is a looseness in the JON
"a ing, and the result is that the loose par
he rattle and make fearful noise. [ have il
as vented continuance that registers the
ce noises-tells just how many of them occur
cd a given time. and locates them. The remej
C. is plain, and consists in wedging and clam
en- ing the parts together tightly, so that the
lxy,IJJ No, o<oG4