The sun. [volume] (New York [N.Y.]) 1833-1916, 1865-09-16
LOCAL NEWS.
NEW YORK AyD THE VICINITY.

THE TRIAL or MARINE ESorSEs-PRo-
eNANsE or ARnASaKnNrs AsErTD UFoN-A Fam
TEAL TO TAM PlAoE-Durins the past week tho
pablo have manifested q great deal Of interest In
watching NE prorcs Of naval contest the result Of
which viii have an important bearing upon all mat
tefs relating to tho science Of steam engineering
Heretofore builders OF steam engines have relied
more upon the power produced by given quantity Of
seam acting With direel force whom admitted into
the o-hpder, in preierenos 70 using the force
OF expansion, a. developed after the steam is
introduced into the cylinder. The 'srpantion"
theory has been discussed often, and rejected repeat
edly by large number Of engineers, notuithstsnd-
ins the almost positive practical evidence that en-
fines using 'cut offs- perform hotter. and more
economically, than those having engines without such
appliances The Mary Powell, for instance, veil
known 70 the public the fastest steamboat on the
North River, n not In the world, 10 provided With
"cut Of" which enables her engineer TO obtain
To-er vithou, increased expenditure Of fuel, q
desiderstum which stoambsat ovner appreciate
moe than the travelling public. But IL is not
the Of . 'cut or that Ia the ques-
tion entirely at issue In the trial between
the winco,h and Algonquin, for "cut offs A"
are, and have been employed on steam engines from
the time Of their invention To the present day, and
no competent engineer will decide against the value
ofs "edt of" a. an adjunct to the proper develop
mont Of power ia steam engine. IL 4. IN. p.r,iou.
lar "cut on used on the Alropauin which .,ci,s.
the opposition Of the Chief tneer Of the NAVY De-
partme nt who % published two yolumos Of a YORK
on steam Engineering ttho nrt volume Of which
contradicts tho sccondI wherein he puts forth .
theory which will he utterly snnihisted II the
sino Of the Algonquin 10 proven 10 be such .
a. Mr. FORBES the contractor, and Mr. Dicker.
son ian owner Of the patent cut of" anticipate
The public arc familiar With the dinet Of ouin-
ion In Iesard 10 the merits Of the marine su,iu.
constructed by Mr. Forbes and are aware that the
matter o,tenslbly In Dispute 1, final payment due
the contractor whose work had been osrtised to BY
the superlntenlent employed by the Goyernm ent
Mr. Isheruood e.used 10 ,asetion the payment and
thereupou Mr. Forbe. demAnied a trlal Of his eneno
| under the term, OF his CONTRACT sddius 10 such
| demand challenge to eompet. With one OF Isher.
~ood, maine onrine. by running hi. vessel a. fa..
and faster, with los. coal or both vessels W tahe on
board .hs sane amount Of coal and start on trial
| trlp When the ship. selected by Mr I.hsru ood.
had exhausted her fuel Dicher.ons vessel VA to tow
the other boat home ssain. Tho ,npudenos Of this
challenge and the question Of steam enrineerIns In
voyed compelled the Secretary TO take somo po,Ioa
Of the request OF Nj rorbo. for trial Of his engine
snd accordingly q te,t WA ordered, under "coudi.
,ons 90 m sniie.tly unfil that disnteeSted parties
could not l 10 perceive that Mr. Ishervood did not
| -, =. =. -. -.,-, -, ,, nII
| h'end W nave 'Sem seV'p'oo NY MI bekeson'
The t.O parties were at once Arrayed In opposition
,a ..ch oth.r and ,hs oua.,ior n, ,h. ,n.,,. a, 20
0'Ao'' a"s 40 E'o'''o" " 'Ho H''."o "o
marine engines became merged IN one OF personal
| hostility The Chief Engineer OF the Navy Depart.
| =, -, a.. -. a, :, "A, -, -
hent hsd 'hs 'po"er 'hat De and We cohesive force
OF official patronage 10 sustain hun while DicteT
| could only rely upop hls own "pluek" and ths
| merits OF MS engine suttalhedI ny tho oplh-
ion Of engineers, indcpendent enough 70 desire .
! f.t, mil of .n ,,i,cinl hoo..r A, ,,is,, ,,.o,
" "' p"'''' "0.'''' " in's"' u'ns'
rom the dietumi promulgated by the Chief EnH-
| ueor of The Navy D.uartment The puble nl.o do.
| pDN 0 w
"e 'ah niA' anu although 'ne psop'' A'e ho'