Richmond enquirer. [volume] (Richmond, Va.) 1815-1867, 1838-08-14

nals On me Gay OF the dunch 1851 week, small boat
of 40 tons passing and repassng the river without
paddles or sails She had a high pressure engine on
board and there she through the waller, puff puff
puff puff, without indicating any other symptom Of mo.
1--we power or even single ripple disturbing her
II that she has under her bottom single padde
The shape eta screo, ei turn Dniy To this screw
gwen rotary motion by the steam enyine-an ills mo-
ton propeIs her through the water without creating
sing e ripple on the surface around the boat An ezpe.
rimenl made last week OH The Surry Canal and il
succeeded beyond all expectation the little boat
myself! moving like living creature over The dirty bo-
Of The Thames. There is now no doubt of the en-.
tire Of the plan, and in less than couple Of
years expect 10 see The whole length OF the Erie Ca
nal nayiyaed BY steam power without urng al all its
banks. One such steamboat as saw could lake 4 Train
o thirty cana boats al speed Of SIX miles an nnur
Another mode Of accomplishing the same onlect Is
contemplated, by experiment which Is now making
on the canal between London and Manchester. ne
.hInrhrSieT Guardian describes II as follows:
1.-THE merit OF making this experiment, helongs 10
Mrssrs Robins Co carriers, Of London, WOOL nan,
Chester, and Of Castle Field wharf, in this town Into
one o! their canal boats, called the AOrety, near The
STERN they introduced small high pressure marine en-
gine Of only four horses power 10 which boiler that
had been used for of the locomotive engines on the
Liverpool and Manchester railway WINS adapted lhe
paddles placed al the extreme stern Of the Doa and
thus terminating il sharp point, it necessary TO
enghen the boat aud make square box 10 contain the
paddles They consist Of two small wheels, placed side
by side not working parallel the beat but transverse
",
plates Of ron Of which there are six each wheel,
have nciInntiNn of about 40 deg. When in action,
therefore, it will b. that, as one wheel ol the PAD
dies strikes the wafer The stabourd side OF the stern,
the other strikes It on The larhoaid thus producing
action the resembling that whic sal!os call
the double scn and which the best effort OF art that
we have seen in imitation Of the mechanical action Of
The tail Of fish when swimming"
But Brother Jonathan is mt Idle, while Jchn Bull is
thus usrfulIy empInyrd Ilr sare,ogn Sentinel de,
cribes invention which is 20, up by gentleman
of that village 1t is somewhat similar in principle
the London and Manchester inyenIon-wh this dis.
tincton that the latter resembles the movement Of the
nil Of the fst-whereas DR.. DLvdSons operates like
the fins. The following is the descrp; Of The Anne
rican experiments
doctor Davidson Of This village, has invented boat
for canal navigation by steam, without wheels model
of whlch have had the satisfaction Of f11minng-
II appears his plan combines all the power and IA
city uf motion requisite free from the objection TO the
of wheels which agltate the water as 10 I'M urc
the banks of The canals His substitute for wheels
sis!s in Of flexible floats paddles, operating
beneath tc surface OF the water attached to t:so frames
running on friction rollers eng,hwise Of the boat While
frame is going forward with The floats collapsed the
other coming back with them dste ndeL right angles
with The bottom Of the buat, prop"ug through The
water, and thus operating alternately like the fins OF
FISH the feet of uqusc birds An upright fixture 10
each Of these frames passes through box like that for
ships keel by which meors steam or other power can
be made 10 operate on the floats beneath
American genius and enterprise are active even IN
England hlr Ogden, Consul at Liverpool, gives
aIr Caldwell Of New Orleans, the following description
Of an Jrcn BUGt en- Rtw PUN:
81 had Tn opportunity when Capt Giovers ship, the
Star in the CRAVING Dock TO take her measurements
outside nd IN tie result .! which the Pcr!rct
vic,;0n on which | would stake my lIir that with the
engine am putting on board my small boat tie weight
Of which wl!h the boiler, water and all complete, Will
not exceed from 10 TO II tons, can drive that ship up
rds Of 6 miles hour with consumption OF from
,Ir ff rncl i,v- he nh
10 BE- the after hold from the mast not interfering
in the least with her cabin between decks except
where It's chimney through Immediately forward
OF the mizzsn mast The two small roofs aft to
nc1c with the engine room, giving IL the benefit OF the
two quarter cabin Windows aud 10 be used for the berS
of lEr engineers, &c The wheels are through each
quarter will Le SIX feet in diameter, and may be- thrown
and Of gear at pleasure, as M" 10 impede the
waT of the ship when the engine Is not IN use
The spirit Of improvement is indeed abO1t-l-es US
wach aud facilitate and profit By progress Oilers
may be Gated the gold the lion agc-the age OF war
-.lr age o: commerce. &c &c Dat this seems TO be
properly the age Of steam The heSt may be The
age Of the Gasrsor Of the ETHEREAL fluids oil Electricity
and .iag nctism.