{"character_count": 3116, "word_count": 543, "ccnet_language_score": [0.9609000086784363], "ccnet_perplexity": [2106.39990234375], "fasttext_language": ["en"]}
revolves with the main wheel, and are
succeSaively forced down at the angles
of purchase; and when they have passed
these points, offer no resistance whaie::
verso that there are never more than
two. CT three floats Of each wheel in play
at the same time, the others being folded
up in line with the surface of the
boats bottom. The floats of the. after
wheel propel at angles on the larboard
side, and those of the forward one, on
the starboard. The axles or spindlea of
the wheels rise perpsndicularly in !ae
ceatrs Of the boat, and have horizontal
.cogs on their s6tremities, Z =h,ch
are applied ether eogs that act perpen-
dicularly and are worked with cfanks
at both sides on the same plan as winch
es.


These cranks are connected on both
sides, SO that one movement sets both
propellers in motion. Around the axles
or spindles of the wheels are springs
which control the revolving inclined
plane that acts on the floats, and indica-
tors which show the precise action Of
the rropellers. By having perfect con-
troll ofthe floats: any motion can be Civ
e., to the boat without reversing the en-
gines, The whole interior apparatus
occupies . superficios. somewhat less
than six feet; and although in the pre-
sent case the apparatus is raised high
enough to admit Of being worked by
winches, yst, when applied to ship and
worked by steam,it will lie e'nearer the
bottom and occupy less space than is
required for the same purpose; according
to any other plan that has yet teen e.
dopted. +sH 81 -:


Last Wednesday afternoon the beat,
with five men in her, four Of them to
work the winches and one to steer and
attend the machinery, was made to per-
form variety Of man9uvres with COM
plete success. She was propelled ahead
at the rate Of five knots per hour; then
astern, next described complete circle,
c>..>.;.aes tho sanai-dianaeter
or radius as she revoived. She was
next propelled broadside on about one
hundred yards, the rudder was then un-
shipped, and she was STORED through
the medium Of her floats alone with the
utmost truth, clearly demonstrating that
the rudder was little more than a use
less appendage. And let it be borne in
mind, that throughout all these man9u-
vres, the propeIlers were never once
reversed, but kept revolving in one di-
rection. = :.st,........


Several scientific gentlemen who wit
messed these experiments expressed
themselves highly pleased with the re-
suits. Mr.. Lear himself, who is un-
doubtedly the best Judge, is convinced
that the principle applied to steamers
will give greater speed than any of the
plans now in use His invention has all
the advantages Of Lieutenant Hunters
in vessels of war. without having re-
course to any peculiar model for its ap-
plication. Itcan be applied TO WALL
sided "down-easter,n or a roupd-sided
frigate; all that is required is a aat floor
in the wake Of the propellers. But the
other advantages of Mr.. Lear's inver.
ton, (if successful on large scale)--
such as bringing vessel round in her
cWn length, propelling her broadside on
steering her &C., &c.-will be without
parallel in the history of steam naviga
tion. !, -


