New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1889-12-12
wITHOUTPADDLE ORSCREW
NEW MOTIVE POWER ON THE SEA
,,uycu OF THE EvoLuTIoN-pR' 'A0hSoN .

OF Dr. "siei a ,.os,sraav NJ the yards of James
,rnox foot of Twentieth ST., south Dioo ,.l .
ass,cuished inventor himself chrsVenoo ,ho 90
Ao,,le of champagne. No cerenio' So ,..rosto, ,v
os,on Only those who were pecuna'' ,ho d.s,,n
,he vessel were invited to be present. uh,,c,tv 90
% A.. mar, ~ the management to sVoid p"o"S VI
on thc p"f' " -, rIfest The characters OF her
Any ~ ii a. the craft herself indicaIe uestoo
y, onedence IN the new system Oh Prop -. -,
or,.,,,v remarkable. AS me b'o'"'o -
,h uave No one present couid fesu 80 a,orae
.dr,rat,on The sun came ou' lo", srn.an,. s,aos
Just IN ume " ~ yot having received her ma
sleani "H0 - bpt two feet of water, ana having d
ehiherS % a.. like an Indian canoe. with twenty
oo' u beam and only SIX anu oie-n"ii i'
' -. tho bilge she foated win ioo' vi n t
'' -. underwater surface sno"ins "s" w
ahorapy whatever may DC onous. % o,,n,o,
man onrcr there is little difference OF opinion
peiins s,,nsaortty Of her form and hull for s"lV
a. sh has a fine entrance and an easy run
80 "a carries to its extreme limit the Aho,i0aii'
a. ~ the English cutter idea In SAILING hos'
~. a. built upon the diagonal prlhclpio ms
s,osd nv White Of Cowes. This 1t IS con'enuco' eI'o'
hor l,ebtness and elasticity combined Win goo
,rsrgtb Two sheathings of cedar are rappe'eo ni'o
rhi,e oak keel five feet in diameter at It's WIDEST
rho ,n,er,or sbeathings are bent on diagonaly,
a. outs;de planking running fore and AT ihsiao
&c s,renptben this structure. Her caoh IL
furnished in hard wood, principally mahogany. Al
,oce,ber she is fine example OF WOODEN shlppuhu,e
IN which art the Yankee nation always ehcehoo INC
world She is also of the most expensive Noseo
of her size aaoat. money seems 10 nave oeoh h0"
secondary TO making ship worth showing any"ho
The mower EQUIPMENT which 1t IS UNDERSTOOD ID
entirely completed and ready to be set up ihsloe
=, ber consists first of boiler of The tubular type
,orr,cer feet souarc with 5000 feet Of heating ana
90 foot NJ CRATE surface 1t is built by the arthur
Company under the patents OF f. H. hoper's "
nj city II is expected to develop over 1900
horsepower which Is about the boiler capacity vi mo
now torpeAo boat Which the Hcrreshons are o"'ai"e
for the Government Instead OF marine oNe"o
the Evolution will carry duplex COMPOUND Seoi
pumping engine built by the "orthlne"n oo"p''
having high pressure cylinder 25 inches In diameter
,ri,h LOW nressure 49, the pumping cylinder pelhg
O % inches in diameter, with three feet stroAe' AZ
its full capacity this engine VIII deliver 'nroueH
nozzle 1916 OF an inch in diameter l'ooo sa"o
of wafer a minute under pressure OF 2,ooo pouhuS
IN the SQUARE inch. Four tons OF water minute
travelling astern at velocity of 600 feet second
is therefore the sum of the propeiling power o hiS
vessel OF less than 100 tons burden.
How fast will she go This is problem which is now
,rrxbInc the mathematics of many marine engineers
According the old formulae on which all previous
experiment has been based 90 per cent OF this power
will be wasted by the "a of an inch nozzle lhlS
calculation is based upon the we'll knOwn propos'oh
Of Rankine that that propeller is most efficient whlch
throws the greatest quantity OF water aselh az 'o
slovest speed As cOrollary to this proposiuon'
Il is LAID down by writer's on the subject that In
vessels automatically propelled the speed OF the dis
charged water must approach as nearly as possiole
the speed of the vessel in the opposite orecuo
Along This line experiment. has been continued for
long perIod. The first patent upon propelling
vessels by water granted in 1861, the second
NJ In
Jamcs Rnmsey. OF Virginia. His vessel, tried
an the Potomac. December IL, 1887. was the first
vessel ever driven by steam power in the world She
carried a vertical pump. During the next one nun
dred gears the records of the patent offices OF all cOu
tes show nearly four hundred patents granted to In
ventors in this art II would seem, therefore, That
invention had exhausted its possibilities Dr. Jack
SON IL is understood bases the value OF his inveh
tion mon one method claim, which was allowed Dy
the Patent Office June 90, 1885, and reads as foiows
The herein described apparatus for propeiiing or
manoeuvring vessel, which consists in developing
pressure exceeding the boiler pressure by means
located between the boiler and the water exit subject
inc water received into the vessel TO such increased
pressure and then discharging it in the form of one
or more submerged Jets against the water Of 1otaion
This apparently Involves a novel principle in water
propulsion. The association controlling this and other
patonts of the inventor in all maritime countries num-
bers hundred persons. Who they are does
lot yet appear. IL is said. however, that almost
evoyy large shipping house in South and Water SITS
is interested in the project and they hope by the
triumph of the hydraulic principle TO bring about
revival of American commerce in American-bult YES
sells.
The advantages far understood, are an econ
omy least 20 per cent in fuel greater manoeu-
wing ability in a vessel, with more cargo space and
less complicated machinery, together with possibili-
les In the way Of Increasing speed, which admit
tba nf aifbss nadd 10
wheel propulsion.
The most persistent c1perimenters in hydraulic pro-
pulsion have been the English, although there are
numerous French. German and Swedish attempts on
record The British Admiralty. IN 1866, authorized
the construction of the Waterwich iron-clad gun
boat Of J. 100 tons. designed by Ruthven. She was |
tried 1867 and attained speed of nine knots de- |
yelOpng 33S horsepower and throwing 314 tons OF |
water minute by of turbine wheel out of two
MOBILES having combined Of six square feet |
placed the water line at each side of the vessel. The
efficiency of this apparatus was found 10 be about
Is per cent. and after being taken to sea and |
nearly laundering in a stiff wind the Admiralty laid
the waterwltch up in ordinary at Portsmouth.
Not content with this experiment which COM
pleed at cost of 100000, in 1854 another turbine
was put into torpedo boat of about fifteen tons by
Ihorny at the expense of the Government This
vessel developed l67 horsepower and discharged
tons OF water a minute through two nozzles, each
nearly loot IN diameter. Her speed was twelve
KNOBS as against seventeen knots with a vessel OF
inc same size and displacement having a pro-
P"0' anu equal power. The efficiency of the
Inornscrit turbine. usually called The Squirt was
only - per cent-and the noise of the water going
ou, Vi Tue ho1zles was likened to the popping of
soda-water bottles, and could be heard. as Admiral
selwyn said. half mile away
,, ~ oi n9o hfSt vessel the Primayista fifty
feet IN length and Of ten tons burden attained a |
speed OF ten Knots in New York Harbor December IL
ioo', ioO wears to a day from the dale az |
Runisey's experiment on the Potomac Hbout twenty
morse power was developed and the wafer was dis
diameter under pressure Of from 500 m I 900
pounds 10 me square inch. The speed of
The various trials of the Primavista were ;fnesnd
BY fifty persons especially invited from pns,on pSua
1e.phia. Washington and Buffalo Among y,on tnnun
New Workers who have testified the peIt"rmanco -
". Primavista appear the names of William II WohI |
collector Erhaidt, Orlando T. Potter p Iag 49,