The sun., 1916-09-17
RTH MOLE TORPEDO NEWEST PLAN FOR DEATH DEALING
Pacifist Inventor Believes 1t viii
Revolutionize Land Fighting as
Whitehead Did Sea Battles

torpedo's approach. Tho best protec-
ton is apt to be flight"
Tho question naturally is: How
does Mr.. Maryc expect to accomplish
these results? lie has prepared de-
tailed plans for subterranes Of two
sizes. The larger consists OF a thick
,ast iron tube or cylinder az feet long
md s feet in diameter: this is the shell
Of the burrowing torpedo. At the for
ward end or head there is n ponderous
grinder consisting of two parts which
rotate In opposite directions.
The surfaces OF these two elements
ire studded with hundreds Of cutting
tools or points made OF a grade of
special steel which can do its best work
when heated to a cherry red. Friction
would induce this when tho grinding.
crushing or rending function is over
coming loose stones or gnawing
through an immovable boulder or a
section OF n solid ledge.
Theoretically, the cutting head Il a
modified stone crusher. and naturally
the rate OF advance is dependent upon
the character of the geological forma-
ton attacked. To operate these Jaws
Mr.. Marye has planned to employ a
600 horsepower electric motor. and one
Of the distinctive features Is the means
adopted TO facilitate low speed of rev.
olution.
Inasmuch a. the %subterrane cannot
be ventilated. his problem Is to avoid
high temperatures due to sustained
action and the great FRACTIONAL re-
s.stanCe 10 he encountered. Hence the
low speed and the usa Of IA porous
grade of east iron in the shell. In this
way the radiating properties or the
metal will hasten tho dissipation of
heat and transmit it to the c~nyelopini
soil.
The shell Of the subterranc does not
rotate. N fact means arc provided "a
prevent this; 1t moves lons.tudinal,y
and forward. TO this end The
outer surface has n great many I'm
Ike projections. set with their thin
edges in the line Of advance 50 as e.
offer in that direction the least pos.
sible resistance. Their broad surfaces
engage the surrounding earth fprma-
ton and cffectually check any turn
, ing movement that would DO induced
by the powerful motors operating
other parts OF tho TORPEDO. Mr.. Marye
expects GONE Of these fins to hc torn
from the she'll as IL" weapon - urged
onward, hence the number provided.
only n few Of them are really ncCcs-
sary TO steady tho cylinder as Il
travels on its destructive journey.
The forward coo horsepower motor
besides actuating tho cutting head, also
functions the spiral %convcyor, which.
Ike n single, primitive intestine, runs
centrally from head 20 tail oc tho mon
stor mechanical earthworm. In this
way tho ground insos.cd materials
are carried rearward to another rota;-
ing element which has an importau;
part 10 play. Here tao second o: tho
two COO horsepower motors has L.
duty to perform in turning what Il
termed the revolving pl.ngcr.
The latter in effect Is substantially
n reverse turbine Of extremely rugCc,
gotup. It's primary function l. =
take the murh or d.gos'oi rock. roots
sand. clay. g., reaching /. by WY
-: tho sp.rl, y y.r. and 20 poHl
tn" stuff IN compressed LAYERS closely
behind the suhtcrranc, As my l'
!mIs:ncd. the piuHger also has a .or-.
tulinal movement like = piston an,
tho maN mum extent @. mis- j. SIX f"a'
This motion relrward that Of pro,
icotioN-is obtained by the operation
~ + ur hydraulic Jacks. and the flui,
pressure IS Furnished hv four pulnp'
driven hy f,ur 81 HORSEPOWER g. -atri,
motors tbs dual movement on ~,
par. -" thn revolving rlunE0r or ta,
stml'a.,s thn ,~ov.rl,tt,p rul It-.rv.