New-York daily tribune., 1856-04-29

Hen depends his- degree on the perfec;on Of the
plal ng machine previously employed upon The stuff
species Of machinery Of which the powers well
deistooi, sni tLerefcs- may be passed over very
slightly.
In Mr. Livern",es invention TIE staves sre
shaped BY a preeess somewhat analogous 70 ne
;tesmirg and berdDg II oOmpon use, perhaps sill
more 20 the ship limb benong shout which some noise
was made few years since but which Ike the elect.
nc telegraph il tie country Legislators grave opinon
would Do vel enough for smsu bur ilss, but never
hor 'arge package In ore vitaly important point.
However It differs from anysuch process and thst Is its
Instantaneous action. Tie bending accomplished in
tv1kirg by passing the fat sawed staye after smooth
iDg it in Woodwork plating machine and exposuretc to
mixture Of ar and steam at about 3l0c Fab through
q series e some has dozen pairs Of slowly revolving
rollers, 20 .hsped and disposed to cnrl i both edge
wise aid Cndwise. AMI at the same time slightly com
pres and fill is pores. The wood slightly straighens
,efacan a. il leaves the rolls and then retains its
form under al circumstances with a yery eoumenda
be pertnscity. The previous saving " the stuff is
done as usual by circular saws and the seasoning by
f,w hours exposure in a suitable Kiln. Tie previous
yla1ng having reduced the ,tBff 10 unocm thick
uess the only remaining operstions OF interest are
crozng the grooves acrCss the ends 70 receive the
heads beverg the chimes and jonting or planning the
edges. These operations are al performed by the
same machine, each >taye being separately campea IN
a horizontally swinging frame, an operation which
springs il into IT'S correct FORM whatever may be the
toudeIcy Of i,s own elasticity This campng iS per-
formed very rapidly by sins gle movement o! lever
operated by hard and by urging the frame first against
a rapidly working vertical plane one side, aud then
against a similar planning device the other, the
edges are jorted with perfect smoothnes. and in the
perieci var,ing bevel desired while the operations of
crozpg, saving off, ard champering at each end, are
done by CIRCULAR cutters revolving vertical SHAFT
past which the stave Is compelled to move in the
trarsticn The heads are turned in a lathe, being
clucked in A. many separate pieces desired, by
very mpc and familiar arrangement.
In the size ordinarily wrought sixteen slaves Of equal
.zc are required FOR barrel. set Of machines
sts Of one shaper one head cutter and fo'r jonting
machines. The shaping i pertt tuned at the rate
Of twenty slaves, or i barrels per minute. The
ioIters each finish four slaves per minute and the
whole operation il SO conducted that eight men and
four toys are able to manufacture, under favorable
circumstances the slaves and heads for about four huH
1red barrels day at cost oabout six cents per barrel
to which an amount vary ing with the location, from
. to sixteen cents should be added for the expense of
the lumber and about ten cents for hoops and putting
together.
The mill described Is in Cambridge, Mass, and has.
We lealn been IN constant operation since November
last producing barrels which hsve excited universal
adm ration in all the distant quarters to which they
have been sent; serving a kind of travelling agent,
hardly equacd by the ever-powcrful press for urging
the more extensive diffusion of this machinery in
every quarter of our country and of the world.