New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1853-02-22
DOWKERs IMPROVED PROPELLER

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~ The following crit catss vii shsw 20 the plohc "a
important nprov ueui over the Propeller no W USE CIV
ing shout the rate Of speed Of side wheea sc mes ,
close poei'ion 70 the vessel lowed , ,.,.
With great advantage may he applied tor eeSns 'esse
with speed 81 II to Is miles per hoGr.
Thisnrp,ler Was .pphea 70 the stesmboss b Forces
with very satisfactory results Of which the N
neIei wIll show, VIZ: ypn. n, N tSss
We the undersigned. hereby certify th1 M bo-ksrs
Propeller applied 70 the steamer D. rsrocs
ls and we thlnk the boat propelled wta 70 neI
utmost ear airy abe beng full vessel rne distance iron
he Lewis Wharf 20 the outer light - miiesl VS. run TO
,ny ~ alons the shore route 80 hours, wind
from The portesst strong for Is hoan the remainder OF
the time Wind north Ieders1s eiesse - BE-, 49, y
whs. IN 10 hour, wind southwest No SAL ssS AID me en-
rnes making IS 10 50 reyosStsI' per mn.'s pessae o.
ses 10 .ssrp vessel woad give beE sped OF TO ID
& n.r boar with IS 10 90 resolutions per inmate, the op
e.ea Of them in Sc. FIFTH ooh c.Sn
NATHAN HoLBR0ok, Eng neer
In nv opnien Mr. Bow kers Propeer gave al me speea
~ ,hs Folhes that could be obtained from her under any
c1anu.tarcrs she being fall model; and thAt II wa oe
found f3lly sa9s 70 any IN use NJ Besssr. Propesr
saS..ss, " : Snsd CHARLES PERSON.
Hs Treasurer ard Marine Inspector.
NJ re- naSersisped fully concur in tie opinions ex-
pressed in the annexed C rihcaes sna rec, 70 ne
Sned hy the Board of Directors OF as Rsei Stcsmeoat
csrsr,i ~ s'' Nv, II. ADAMS President.
''Ni'n'' THOMAS c. SMITH
WIN y. PARROTr, Directors.
ISAAC SwEErSER,
BosroS jane ~ 1852.
Jort BowxER j. Esq.-Desr SIR think. from whstl
have witnessed to-day IN the performance OF the X 8
FoEbes steamer propeller attached that you nave
male thls ssp IN advance the history OF propeers VIZ
Thst with bower in proler proportion there be no
doubt TIA: vessel ua be driven 10 any required speed
there being Perceptbe sp 70 the propeller ss "tae
msxuuntor with 20 turns Of the propeller with pre-
SIRE of s inches Of steam the boilers the r. r. Forbes
WIS propelled l. miles per hour which is as, as she
eapsbe OF dcing driven her model, size be NJ fall-
SSxsd aat.fooTrG vsSsl But You have principal in
inproveuent BY obtlhing great speed oy 50 shsli
ler used This makes the running OF the Boat much mo-
economicA and much easier Tor the engine.
Signed. gaMUEL II. PooK. Naval Architect
MIR Bowker sys: Il can. with confidence. receuilheno
is and porties uslnsu wi not DC - I've
Performance It's operation IN the water Is 50
ohers consructon II does not press the water o
ward the Periphery and cause centrifugal lone ea "a
It's center directly parallel with the a IN backward OF
forward oton, end in proportion 70 me re'oNg o.o
power N the body TO which IL IS attached with less
I'm thar other propeller possesses the advsnaZe now
stronely urg,a Nv Bourne ensneer OF Londonl IN hs
Sos or T PROB Ss sspS w s s' covered in
sssNsy and the peculiar form Of that portion OF tue stern
Of vessel acting ne an inclined pane mas tendency
rrese the vhesSe forward scsand the extreme mar
rrwness Of the blades offer e obstruction or RESISTANCE
when DISCONNECTED aud under a pres. OF .aii vs..
J. HOWARD son, Agents tor New-i o Ok
The model may be their Ofce, No. 81 Broadway
CODA WATER APPAkAItS-FO Mnnu-
- tcurng Drawing and BottlinS, Of the latest aud most
snrrovei description Manufactured and for sale with
pheit printed drectors for use by JOHN MATTHEW'S,
isfAy cor g6th-st., n Y.
CTEAM GUAGES !.-ASHCROFTsS Steam
- Gu,ges for Hgh.Prcssure, Low Pressure and Loco
CHAs'W COPELAND, General Agent, 81 Broadway
vU,O RICE-GROWERS.-A lot OF STRONU'
i patent RlCEHULLERS for sale one 81 when may
be seep in opsraton on application 10 MORTON BREM
MR. No 2i2 Pearl-st, corner Fletcher-st
VNATER GUAGES.-FABER'sM MAGNET
w nc WATER GUAGES. For sale by
No "a Broaiyay