Morning herald. [volume] (New York [N.Y.]) 1837-1840, 1839-04-17

seruetsJ for ssting Captain Erisssosss propsller,
which We no<ioed some time sinss, beisg on the eve
departure is the United States atshs request q
witnessing her performance. the Prspretor consent
ed to another trial being made, and Saturday last
large party was invited for this purpose. Among
those present were Major-General Sir John Bar
goyne, chairman Of the board Of public works, and
commissioner for steam navigation, &C., in Ireland
Major Robe, Of the Royal Engineer; Mr.. James
Terry OF Dublin, largely Concerned in canal raviga.
Thomas; several distinguished Swedish naval Off
GERS; Captain Stockton, of the United States navy;
Air; Ogden, Consul Of the United States at Liver
pool; Mr.. Young, an American civil engineer, q G.
seine thirty gentlemen were present, and the result
OF the trial gave universal satisfaction.
One OF our correspondents having before described
the construction of the propeller, we will now
more particularly direct attention to the effect pro-
duced during the trial. which appears quite sonclu-
sive as to the success Of this important improvement
IN steam navigation. The distance from the West
India South-dock TO point opposite Woolwich
Church and back, measuring 81 900 feet, was passed
against the tide) the boat towing at the time heavy
city barge on the sde large wherry on the 9th
err and another wherry astern- The speed OF the en-
CINE being repeatedly timed by one of the gentlemen
| present, Mr.. Young, intelligent American engi
neer, it found to average 66 revolutions per min
ute, or 297O during the 45 minutes The inventor de-
monstratcd by accurate working drawings, that the
spiral planes Of the propeller set at such angle,
that had the resistance of the water been perfect the
progress Of the boat could only have been lS feet at
each revolution, 80 204 feet during the time in
stead OF 81 600 actually performed, thus showing
loss ofless than per cent Respecting the engines
tor working the propeller it was observed, that they
may be made much stronger and more compact than
ordinary engines, in consequence OF the power being
applied directly to the shaft which works very near
the bottom; this for seagoing vessels will be very
important, and their original cost must be consdera
bly, reduced, all the parapheraalia of shafts,
wheels, wheel guards, &C., will be dispensed with.
st Wi be crpat reOulA ri 10
ticn not the slightest jar being perceptible. The
engines consist Of two cylinders 10 inches in dame
ter, with Is inches stroke, and worked by steam,
OF pressure varying from 35b to 55lb to the square
inch; their construction is extremely simple, and
evinces a knowledge Of steam machinery in the in
ventsr which is calculated to give additional conf
dence in the Of his propeller all the varie
ties Gifts application for canal river, ocean nav
gation.-1in Nfte
IMPORTANT INvESrIoS-Mr. Frederick lie Me-
surer of this island surgeon has recently ented
new pump for ships and mines, on a principle inf
nitey superior for all practical purposes, to any yet
discovered. He is at present in London taking out
patent for il, and intends extending that patent to
France, Holland, and the United States Some Of the
peculiarites Of this pump are the almost total ABB
sence Of friction-the inpossblty of its getting
choked by sand, wheat, or even small stones-and
capabity, in a small sizea worked by only one
man, Of delivering hogshead OF water in minute
and half Larger sized ones, worked by two or
more men, may be made to deliver two more hogs
heads per minute; and in mines, where the pumps
are worked by steam engines, the power may be i'm
mensely increased. We understand that the piston
is dispensed with, and that a vacuum is produced by
means Of an India rubber bag, stretched rings.
Mr.. lie Mesurier, it is reported has been offered
fi2 900 for the patent, being foreseen that this
pump must supersedc all others, both in ships and
Star.
RAILWAY AND SrAGEcoAcH TRAvELLIKG.-Ia APP |
pears, from return of the mileage and composition
duties railway and stage carriages respectively,
in the years ending the 9Th fJanuary, 1887 1888 and
fhotf lac lied Nv
coaches in 1888 than in 1896; and l4,4OO,0O0 more
persons by railway in the same periods.
RAILWAY MAILs.-A very ingenious apparatus
has just been erected by order Of government on the
railroad from London TO Liverpool for exchanging
the letter bags by the travelling post office,
without in the least checking the speed OF the steam
carriage. The bags are now taken and lett, at any
rate Of speed however rapid, at which the train may
be travelling thus considerably expeding the tran
sit Of spondence, eecting vast saving IN the
consumption Of steam power, and, though last not
least in Importance, getting rid oil the liability OF Sc
rous accidents to the parties employed in exchang
ing the bags in the old mode. gentleman by the
name Of Ramsey. connected with the general post
Office, is the inventor Of the apparatus in question
SuB-MAmSE ExpLosroSs.-An experiment was
made with complete success with one OF Daniels
gaivanc batteries under the superintendence Of Col
Paisley of the Royal Engineers, AZ half-past two
O'Clock last Saturday, off the gun-wharf, Chatham,
35lbs of powder were exploded in about 10 fathoms
Of water the length of the wire conveying the cleo
trio iuid being 500 fleets IL caused most tremendous
explosion. Three smaller were afterwards
tried, but only one succeeded. There was numer-
Gus assemblage Of Decentralization Journal |
THAMES TuyHEL Mr.. Brunei has recently stat |
ed that the advance OF the Thames Tunnel was now |
al a rate Of three feet per week: they were now o.
feet only from low water mark
TnE SupLiMg.-Thc Sherborns Mercury, in de
seribing ball which took place recently, in Dorset
shire, says dancing was kept up with great spirit
until Sol dotted his nightcap and squinted through
the skyp'
yAs AMBuReH.-Mr Van Amburgh closed his
eagement at Drury Lane Saturday, with his bene-
fl after an unprecedented career OF success and po
puarity in his peculiar line. The circumstances at
lending the introduction Of the two lions recently ar
rived to the inmates Of the cages said 10 be very
interesting. Mr. Van Amburgh slept Tor three nights
In the cage in which the fresh animals were placed
before he could trust them with the others, as the
hostility manifested by the veteran occupants against
the new eomers was intense.
Ixrtpyrrry MIR. Robert Owen, the founder Of
the "a Social system" met with signal defeat last
week al Reading. Mr.. Owen had challenged the
clergy Of that town public discussion Of the rela
tive merit of Socialism and Christianity The Rev.
Mr. Legg took up the glove; and, before an assem-
by Of up wards Of 800 breathless, quiet auditors he
nobly vindcated the divinity Of our faith, and
dcred the wretched infidel who opposed to him
literally speechiess.-Bah paper
SrArE or IRELASD.--Judge Champion, in his
charge to the Clonmc grand jury, this asszes, said
"a The mass Of violence and blood appears to give
10 your country fearful prc-cmineuce in crme-a
Of human life not alone beyond every other
county in Ireland but every other part Of the
.;v;l; I'D worldr' There ~ murders for trial al