New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1849-01-11
America two day. nearer TO Europe.

continue o improve Ia heir methods q prope ir.
those msrnis-eut naval casriois called steamships
auil ihs "a word A1i the NeT aEs 5r3-ght siiL-n
seven days sal Of each other or even less huu
dr,d years since tic errr-s lengths OF passage
across Il, Atsntc animated - from fre 10 eigl
weeEs-loN ihey are a501t fortnight 81 stcsua-pack
et and much shorter than they were formerly 10 other
craft. Voyages werr naie in ths ccu-le Of lsis 70
l0i days from port 20 port and iae steamer Ll-op.
completed hcr ias, Trip from Liverpool shout ee, ln
days Voyages have been made between New-N OK
and Liverpool al tee rae Of nearly II miles pr hour
p shorten ire passage 20 scven days woulc only In
crease tee average speed other miles per hour,
that e = I-uls Tae asst received number Of " T.
J0lrlal " Le Frastr Tls,i.afs coEiAns statement
by Taomss E@5snk E'q, enc Of Is conductors a
gentleman well k1o~n throughout the Un!on IS an
c-csingly able writer matters Of practical utility
connected with Science and The ara showing .he re-
suits OF vast number cl experiments relative % the
paddles q their agure. Dip thicSae-s ma
ter.a. number &c made b. him on the Harlem River.
this City l-4i. y which : made apparent
. the most common understanding tlst 0y using few
CT paddles Of Improved construction the voyage be-
tween Boston and Liverpool would 5e shortened other
two days The importance Of the subject, and the
ability wth which il considered would f-ily Tarrsn.
the publication Of whole Esssy IN The Tr5ue but
At tns busy period Of state and Federal legislation
vii coutcnt myself vim drawing the attention OF the
coan,ry to 1.-THE Essay occupying % pages Of the
Franklin Journal Mr. Ewosns acknowledges ndebt
edness % Mr Alsirs and Mr. stlnan Of the Novelty
Works Tor msny valuable iscts to Mr. John Bell, FOR
assisting him In conducting the experiments, and 10
Hr Mott Tor boat The Federal Government ought
70 give him steamer wherewith 70 test bis expert
msnts upon larger scale the matter be has consider
ed being Of abiding interest 70 the whole civilized
world, AMI tie operator tue very sauPodes Of IS
i0nsry or charlaian
In this. a. IN similar Of highly interesting dis
covery society will probably be slow TO notice. com
prehend snd duly appreciate the advantages conferred
upon % yet the writer has fully illustrated bis subject
no, only by exsci experiment but also BY careful ref
10 the forms oil natural proPelers as exhibited
in the salmon cod, FOUNDER, and other fshes We
grope says be, if blind, for that which is patent
before Us or, ii is elsewhere said Of religious
truths Light shaeih in darkness and tie darkness
comprehensive it not" Who Il there among US but
has wondered seeing some new, simple and yet use
al invention tbs, thing simple had no, been sooner
made or though hi Of
The conclusions arrived At BY Mr. E-bank-tio les.
which bic experiments inevitably ,each-are thcse:
]. That to render the paddles Of steamers more If
iectus they ought to be fashioned far as circum
stances sanction sitter the models furnished by Nature
10 conform TO her practice Of contracting surface
when resistance Is Of little avail and extending It when
resistance is grestes-,o give the largest portion. OF
blades the longest strokes
p Tina, the fewer the paddles In a whe, tho better,
provided ore paddle be always kept in ,ul play ard
hence tbs, il would be better point or fork them to
evsde the jar the surface OF the water than split
and multiply them as the common practice i'. In the
tails and fms OF hshes, and wings Of birds and insects
Nature has nowhere sanctioned a rectangular pro-
peier-all inclined 10 equlatersl soaenous $50
sceetic trisngles, made up Of them nor does
she unite the levers tina, work them TO their sides
the junction is always al angle that tho largest
face may have the longest sweep. lie would maze pro
pe!ers ike half The foot @. swimming bird, ana gives
excellent for using form OF paddles similar 70
the foot of petrol, gull, swan, goose duck.
.. That smooth and thin metallic plates should be
substituted for the usual massive thick, water soaked
plank. Al present pcrhsps nothing better than boiler
plates gavsnIzed could be adopted but eventually, he
opnes that plates of steel will be used steel will
supply the thinncs sheets resist the pressure they
are to oppose.
T. That bolthesds, nuts, elesi', straps, aud every
other projection upon about paddles Sc. should be
provided against, the arms OF wheels reduced Fl
their outer extrem;es aud The immersion OF all super
aaous material avoided
j. That when wheels require balancing or their
momentum 10 be increased. the weights should be
attached to the above the surface Of the water
g. To cost paddles, ard parts that plunge with them
with yarnish other substance that repels water 10
order that the aGd, instead Of being dragged up in
volumes By them, may roll from them, as from the
backs OF diving birds.
The English rule as to the number Of paddles, 10 10
have for every foot Of swheeIs diameter. which
makes them stand three feet apart Mr L. thinks that
the greater the velocity OF a steamers wheels, The
fewer within certain Amis should be the blades and
that at the rate which Of our boas GO the
Der ight be reduced with advantage The Atlantic
and the Pacific each Of 600 tons now building FOR the
Collins line to have thTss iacA paddle planks. The
atlantic IS 10 have 2. blades feet thickness Of
plank in each wheel being 9Th Of It's dsmeief-s5oui
500 cubic feet OF timber In both-dspsylng 10000 los
Of water at every revolution, and neutrizing i a. re-
sistipg medium. The chip viii thus have feet stroke
A. every turn Of Der wheels Thicker her paddles I'll
they touch. aud they will form reToying drum, for
which grindstone might be substituted with equal
eject Mr Ewbank would prefer reduce the seven feet
OF plank TO space Of seven inches in each wheel By
using quarterback iron TIE sharper the dipping edges
OF paddles are made the more backweter they throw
when the fsvors the ships progress and ess
IL carried higher than the axis. A very Aitle labor
would make their section a wedge, and The beneht
would, as Mr.. Z assures "a. repay the expenditure
hundred fold. The thinner TIE blade, the more eth
Gent - propeller ii 1.-THE longer ifs stroke the
eaec,usl the power thu; wieds il, The outward boun-
dAres Of the wings u birds ieshsrea Of 70 almost
nothing.
OF course Mr.. Ewbsnk has taken means 10 secure By
paien, the improvements he develops and few who
may attenavey pursue ais graphic description, and ex
anime the engraving. annexed will hesitate 70 scknoVl
edge the great utility Of as Proposition. MoAIoS.
Michigan.
The Legislature Of Michigan assembled at Ian
sins. Ingham Co the capital Of the Stste) the
INST The senate organized BY the election Of VIM
l. BANCROFT editor OF the Port Huron Obssrrsr Sec
Rotary CHAKLEs SMITH Enrolling Clerk c. P. XXI