Pittsburg dispatch. [volume] (Pittsburg [Pa.]) 1880-1923, 1889-05-23
THE USEFUL BAMBOO.
Can You Tell Us Of Anything for
Which it is Not Available?
EDISON'S EXPERIMENTS WITH 1T.
More Light on Electric Lighting by MenlO
Park Wizards Counsel.
ARGUMENTS WILL CONCLUDE TODAY

Notwithstanding suggestions of Jarndyce
VS. Jarndyce, the case of Westinghouse VS.
Edison evidently grows in interest from day
to day. That black hole called the United
States Circuit Court room was crowded to
ats utmost yesterday. A considerable por-
tion of the crowd was composed of members
of the Allegheny county bar, but business
mems faces predominated. It is supposed
that the fact that no matter in what light
you looked at the case you saw marked all
over it this figure IS had some effect to
draw. The decision of the case will trans
Ter much of what the character represents
from one set of pockets to another.
Mr.. Thomas A. Edison sat at the counsel
table, and though evidently listening closely
did not exhibit any unusually apparent inter
est, and his smoothly shaven face and the gen.
eral contour of his features suggested ex-Sec-
retary of State Bayard. The proceedings were
as on the day previous enlivened from time to
time by their honors asking questions. When
Mr.. Grosvenor P. Lowrey referred to Sawyer
as man of intemperate habits, who might
have Jared better and had more success, Judge
Mchennan wanted to know If Mr.. Dowrey un-
derStood the temperance laws of this State.
Mr.. Lowrey said he did not. but he had a
friend who suffered greatly from thirst last
SUNDAY. The visiting counsel evidently
hadn't got onto the 'speak-easies." There is
still another of the "furrin" attorneys in the
case on the side of the defense, w, D. Don
nelly, Esq, He is associated with Mr.. Richard
n. Dyer, who made the argument in the after
noon.
IT Is u YEARS OLD.
Mr.. Lowrey, on resuming his argument said
the incandescent lamp started to burn in
Menlo Park in 1877 and has continued just as it
was then constructed. Edison, he said. gave
the light to the world and it was the plaintiffs
who infringed on them, and not the defendants
on the plaintiffs. Mr.. Lowrey cOntended that
the use of carbons was an old story. Alludlng
to the Sawyer-Mann lamp he said Il was
neither the father nor mother of the Edison
lamp, but might be called a mule in science.
Mr.. Iowrey gave general history Of the var
ious experiments of Mr.. Edison, and read
opinions from various scientific men who in
1879 discredited the fact that Edison had per-
fected his light and had sub-divided electric
light. A lamp was exhibited which Mr.. Low
rey said was used by Mr.. Edison in his expert
ments in 1877. 1t was then discovered by Edison
that he must have perfect vacuum to produce
q perfect incandescent light He worked then
to find something that would give high resist
ance conductor and the result was this line
nbrous flament, he then used and now uses,
the bamboo fiber. The speaker said there
would be no electric light, but for the wonder
ful genius of Edison. The discovery of the use
OF bamboo was an accident EXogenous woods,
are Of no use in making the fine hbrous MA
ments ana Edison soon found this and when
he discovered that bamboo was needed he sent
" dpdu SuAud W pIOCuT6 specimens Va
the fine fiber which grows Immediately under
the bark Mr.. Edison experimental with over
5000 kinds Of bamboo and of these only three
or four can be used. Mr.. Lowrey finished his
argument after the noon recess.
SCIENTIFIC EXPLANATORY LECTURE.
Richard n. Dyer, Esq, followed Mr. Lowrey
for the defense. and the part assigned to him
was almost entirely technical. He had large
chart and large number of drawings illustra-
ting the advance in electricity since 1900 when
patents were first taken out in England, and
since the discovery of the voltaic batteries.
Mr. Dyer said that it was not the question of
material to make household lighting, but that
1t required new invention, which was Srg ught
about by Mr.. Edison, and which was not known
by Sawyer & Mann. The chart was then re-
sorted TO and electric lamps patented by De
Moleyn in lS4l, showing the use of lockwood
as a carbon. and a lamp invented by
King an Englishman. in lS45. and other inno-
vations all showing the idea of incandescent
lighting. The gradual improvements in
electricity from 1859 to 1872 and finally the last
and grandest improvement by Edison. Mr..
Dyer claimed that the light invented in 1872 by
koun was In reality what caused the after
thought of the arc system. The speaker
claimed it was not the character of the burner
that was to make the electric light success;
something yet remained to be discovered and
II Sawyer & Mann had discovered that why
did they keep it quiet and not give il TO the
world, as Mr.. Sawyer testified that not one of
their lights had been sold. Mr.. Dyer closed by
reading statement of Prof. Barker on the use
OF carbonized paper.