The herald and news. [volume] (Newberry S.C.) 1903-1937, 1907-10-29
100 MILES AN HOUR.
Huge Speed Promised For British
Warships.~
London Chronicle.

London Chronicle.
The British admiralty las now un-
der consideration new form Of ma
rinc engine and propeller which, the
inventor claims. will rcvolutionizc
not only naval warfare. hut the navi-
"atirn of the Whole world.
The invention is the fruit Of much
ingenuity. labor and expenditure on
th" part Of Mr.. T.. Mailman nf Red
burn street, Chelsea, who has devoted
TO il years OF study and experiment.
IT frs! sight the engine resembles a
turbine. but closer inspection reveals
important differences Steam from
any type Of boiler i; bror"ht to bear
upon Il shaft fitted with - chambers.
dlvlHrd into two sCts of six each.
Shaft and chambers are Ill Of steel,
east in one piece, and Of great
strength. Exactly what the arrange
mcnt Of these chambers is the inv2n-
tor deems ii imprudcnt at present to
disclose. but it is such that the ad-
mission Of steam through the oriGccs
at their ends causes ihc shaft to
r"v"!vc at Il tremendous speed.
So great is the power Of The now
forn cf engine. indeed. that thr in
ventor considers it useless to apply
it to The ordinary screw propeller
lest the terrific pace should result
in The formation of il complete or
partial vacuum III which the screw
would "race' without cvcrting it's
propulsivc force. He has accord
in"ly devised a modification Of the
screw propeller which will make a
return in speed for all the power that
can be applied to ii.
The screw has three blades, each
of the shape already fmiliar, but in
| stead of being attached to one small
hub, they are fixed at intervals of a
couple Of feet from one another to Il
long shaft. The result, Of course, is
, shat each blade works in its own wat
cr. instead Of in that through
which its fellow has cut but Il moment
before. The shaft is fitted with three
Of these dissccted screws. each of
them with a larger orbit than the one
Immediately in front Of it, SO that
when set slowly in motion it pres
ents to the eye the effect of a huge
cork screw worming its way forward
The shaft bearing the three screws
Is fixed Immediately beneath the keel
Of the boat, and runs parallel with it
and with the driving shaft and its IL
chambers. This occupies so little
space that practically the only ma
chinery in the body of the boat will
be the furnace and boiler, and the
inventor, therefore, believes that in
the case of cargo vessels the device
will have the advantage of adding tc
the carrying capacity as well as Of in
creasing the speed. It is, however, in
naval warfare that he expects fo1
the invention the greatest Immediate
utility. Up to now, the new system
has been tried only on models upon
the Serpentinc and the Thames, but
the speeds attained in The largest OF
these lead Mr.. Mailman to believe
that on a vessel with the size and
steam power Of present day torpedo
boat it would yield velocity Of 1OC
miles an hour.
That, however, can only be deter.
mined by experiments upon larger
scale than has yet been possible, and
he has accordingly applied to the ad
miralty for the loan of hull anG
boilers to which the new engine and
propeller could be fixed at compare.
lively Slight cost, so that their utility
may be determined once for all.
UNCLE AND NEPHEW