Richmond enquirer. [volume] (Richmond, Va.) 1815-1867, 1818-08-21
AIR ROLF


Er. John L. Staples, of Flushing, Long Isl.
anu, has announced, IN an interesting ESSAY i'm
Tue American MOashly Magazine, the result of
iOhg course oleXperimenis in mechanical
ScIeEce, and particularly Us applied TO uayi.a.
non. IN the introduction 10 his ESSAY he mo.
destiy declares that he does not arropat6 the
discovery OF any new principle in mechanical
or chynncai philosophy, but that he claims all
the advantages That may arise from a 1ew and
Pracucally useful application ofIous known
principles.
The. result ofhis experiments in the con
structien of what he terms AN air boat, ofwl,ich
the Following is his description : 8ur0ra
DESCRIPTION OF THg AIR BOAT
" vessel ought To be constructed, so as 10
answer the particular purpose for which The is
I"tehdeu when she is intended TO sail by
means OF mechanical force. her form should be
uihtient' because when her sails are used, she
~ dCteu hp0uby two elements, the wind s. wa
YET an9 teqhUes greater degree Of stability
10 ne aoie TO carry press of sail CONSEQUENT
~, depthln The hold Tor the cargo. lony keel
, anu hit,e breadth to prevent her falling TO The
.eew",u' Whtn she is to sail by mechanical
iOICe,n eF t0r'n and size should be very differ
tht. f0r lhiS purpose, the bottom should be
formed quite Hat Ito sail rs mnch az po,sible
upon Tie water and the sides made TO rise nor.
pI"uiCulariy from II, without any curvature :;
whicn would not only render her more steady
as being more opposed to the water in rolling
o"' hhe"se more convenient acCOmmOda.
uns' &C while the simplicity ofhgr form would
Contribute greatly tOthe ease, EXPEDITION and
Tf.:"noH'F, WIN which she maht he fabricated
diminishing the draft of water is undoubtedly
tue most effective method of au1n,putinr tl.
VeiocIty OF The vessel; hut as il prOportiOi,bly
hlhihsheS her hOli Of the wafer and rpuIrrs
he' more liable to be driven TO the leeward
,' is Ie'ect Is iemedied by the trunks under
rti DOsOn, Which are an excellent Substitute
iVt keel. 10y means Of those side trunks she
WIN De Kept steady in the greatest gaie quite
80 III d siedt sea, VIII not strain iu the least
anu never take in water OF her deck 4; and
"Heh AT anchor, will rise more unripltt and
wen than any other vessel can do. Her cy
rene breadth should be no more than the ) IN
w ON part OF her length her bows little
LulNed TO break the force Of the water, and
i'' sleFh somewhat narrower than her bows,
e. h's general INCLINATION from tie stem To
lem 70 promote the action vt the atnOs.
P"tIe anu lhe water upon the sides.
L. uilph, tiat. III tile preceding remarks, |
"HEe established the following facts:-
ana, 80. Eat fHE POWER nj Gt8iOyphericd aj
Luz urea dir, Increased by condensation and
nN%t as directed and arranged b. me, is not
y"y very great, but the mast eiigibie AID most
P.%.9{m ageHi for mrchaHicai purposes.
~ nat ~ applying This po,cer, circular
NuSihe on any construction Is more uselnl than
auy other, aHd that BY tie simple escape.
b ,en' ol Tie piston TOD of the steam engine.
- gwen u an advantage. in recipfOcating
=. einents 1t had not before.
there mat. IN the present steamboat system.
H. - az aggregate loss ~ Beariyfhree fogrthsOt
fts rr G5"fg .p Tie GlgiHe and that on NY plAn,
ogf IGo;s.JgFce Of tie engine can be appiied rHh-
nsvoj g'.nH''on, and Wfh cne,iiih pq,t Of tie (uet
INV mo IoASR'ted in he present metb0!. Hence,
sulsfIy3 VI applying THe POWER or AiR as
my sS5 yor sTEAN. Is atteHJcd 9iili au ccono.
;.Ib "rrV anlase hitherto uucqualled.
ip.,,r . nat ne power oftie cnsine in one
aterr,t.gs applied directly and also iadireciig.
sktrri,. - WV OF without th intervention Of
so'sI, H. Theels ard in the other indirectly,
gr-t,Jsof| .iS pressure Of tIc atmosphere, end he
IctccIt,g t tts cUec. ,0ittJat tic iHierseHfiga Of
Sal" ss's'r erierig- Instruments
verience :; T., "oat "hi"n u"ttes ernncrny aud con.
~ &c W an omiueut degree
d., ',ples closes his ESSAY. by an auoIorv
l,o1i., '4' "hcii hdste occasions, ard %, =
StI'eci Any erIJr - ,Go.eItd a 4