The Hartford herald. [volume] (Hartford, Ky.) 1875-1926, 1878-05-29
TIE TELEPHONE.
The Telephone without n Mag
nctic Battery -lnteresiing
Experiment.

Much is said and many Jescrip,ions
given of the telephone, the phonograph
aud areophone IN the periodicals of The
day hut one Of perhaps, the most simple
forms and uses of the telephone seems to
have almost escaped notice The form
operated through the assistance of the
magnet battery, in Consequence of The
perhaps unlimited distance over which
II may he operated. as well as it's general
adaptabihty to nearly all circumsta noes,
is, aud probably will be, OF most general
use. Still it has the serious faults of in.
dlstlnctness OF articulation, of unnatural.
metallic, and resonent sound Of the voice
and reqnistion of skilled workmanship
in lts construction The same fault in
sound applies to the simpler form with
out battery, as commonly described
WE: WITH line Of wire, string, or thread
with common tin fruit>cans for Guns or
drums
A lengthy series of experiments with
a variety OF drums and lines OF conduc-
tore has entirely removed these Obirc-
tions; and the articulation aud every in.
! Election of the voice delivered land recog-
/ nlZed, If of an acquaintance all "a dis.
]
a neichhor, Mr. Thomas, and mvselr
have experimental on q line of go feet
with thu cans, using the can bottom. pa
I per, parchment and bladder for drums
Then with pasteboard and wooden boxes
of various size, with varied material tor
drums; ALEC on iron and copper wire.
silk. linen and cotton cord and thread of
conductors And from all we have the
most satisfactory results from the com.
mon wooden collar or cuff boxes. found
IN most of dry goods and variety stores.
| OF three 10 -four inches diameter and about
four inches depth, with bladder drum
tensly drawn over the end This is both
tough aud sensitive to the vibration. For
lines or conductors we use the common
patent linen thread drawn through the
center of each drum, knolted ana pasted
down solid.
Or better attachment is made bv cut
ting two or three pieces of bladder, about
the size OF a nickle, aud FASTING over the
center OF the drum inside the box; then
put the thread through. knot, aud then
past another piece over the knot This
gives strength and solidity. Larger
threads or cords are less liable to break
but will not yield to each minute Inflec-
ton OF the voice. They are also subject
10 greater contraction aud extension from
wet and dry weather.
The line on which we have experiment
ted connects with our separate residences
ninety yards apart, passing through
small holes IN the window sash.
| Under favorable conditions OF still.
light, or rare and dry atmosphere. every
word and peculiarly is as distinct a.
when face TO face. Even whispered
words are distinctly audible Nor is it
necessary, rs with lines worked with a
battery, 10 have the voice or ear in close
contract with the drum.
The vibrations become more distinct
at distances, or from six TO fifteen feet
from the drains
Conversation has been held on it with
both speaker and nearer eighteen feet
from the drums
Wet and windy weather interfere more
or less with the vibrations Another line
OF like construction at Kansas City Of
900 feet in length. works nearly as dis
unctIy as ours How much further il
might be extended with success | know
not. A l. CUIIp
Plattsrnouth, Neb.