The Red Cloud chief., 1878-05-23

Much " said AMI many descriptions
given II the telephone. Tho y~hooogtsrh
and sr-phone, In the periodical. " the
ds, ,u, ms III, p-rhsps, the mos, sim.
pie forms and uses II III, telephone
s.-ns a. have almost escaped u-,,e.,
Tho form operated through the A..is,.
ancc ~ the magnetic battery, Ia cons-s
9uencc ~ the perhaps unlimited dis
,aace over which " may 10 Operated.
~ we'll ~ lts general sd~srtah,l,,s IA
ncsri, all circumstances 10, n prnha'
III, Will I've. II mos, general use sun
" has the serious faults ~ ,ndistiDc,-
n~~. IL articulation. ~ unnatural. m-
tsllic. and resonant, sound ci the Voice,
and rrquisition II skilled wurk mAnship
In its chn.,ructioa, III. same fault 10
sound applies l." III. simpler fcrm with.
out a battery, as cotnmonly doar,t,~,t.
via With q line ~ wirc, string, ot ihrcai.
With common tin fruit-csps Tor cups az
| drums
A lengthy series II experiments with
u ,arict, ~ drums and lines ~ conduc-
tors has entirely removed These ohj-c.
| ,ions, aud tho articulation and ever,
inf~c,ion ~ the ,olc. delivered tan,.
rr,sognis"d. n ~ an scquain,Ancol all
~ distinctly ~ II In immediate pfrs.
cucc.
A n.igbbor. Mr.. Thomas, aad IN, sclf
have experimental on n line IL 40 tcc,.
with Tin rams. using the can bottom.
paper parchment, and bladder Tor drums,
Then ~ pAs,.board aud wooden bosrs
II various sine. with varied material for
drums; also on iron and copper wire,
linen and cotton cord and thread Tor
conductors. And from all ~. have the
most satisfactory results from the com.
mon wooden collar az Gun boa-~ found
In most II oNr dry goods and variety
stores, IL three "a four Inches diameter
and about four inohc. depth. With .
bladder drum ,"nscl, drawn owe the
end. This l. both tough and sensitive
Ia the vibration. Tor line. ar conduc.
tor. We u." tho common pAiebt linen
thread drawn through the center III
each drum. kn",,.d and pasted down
solid.
Or a better attachment |. male ~,
cutting Two or three pieces ~ bladder.
abou, tho sire II n nickel. and pas,ing
over III. center II the drum inside the
box; then put the thread through. Knot.
| ANU ticU DNste uuptueV ptf'r bN"F WV
knot. mi. give. strength aud solidi,y
Larger threads or cords ARE lee. liable
to break. hut will not Yield Ia each mi.
mute inf.ction ~ the voice. They are
also subject la greater contraction
and extension from wet aud dry wealth
cr.
The line on which We have expert.
mcnted connects with our separate rcs-
,drnccs. ninety yards apart. passing
through small holes In N" bottom win.
dow sash.
Under favorable conditions NJ still.
light. ar rAr. and dry atmosphere. ".
cry word and pecnlisrt,y IL ~ dis,inc,
M whan face Ia face. Even whispered
words are distinctly audible Nor IL !,
necessary. ~ with lines worked with
battery. to have ths volcc or ear In closs
contact with the drum.
The vibrations hsscome more distinct
nj distances III from six Ia fifteen feet
from the drums.
Conversation has been held ~ II with
both speaker aud nearer cightr~n f.e'
from the drums.
Wet ~ windy weather interfer.s mor'
or less with the vibrations. Another
line 81 like construction nj Kansas Git,
81 1000 feet In length works nearly q.
distinctly NJ ours. How much further
Il might hc extended with success ] know
not. A. l.. CmiLD.
rnttssuuuth Nell.