New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1861-07-22

TIE most rat Of he breecboaaere Of which we nave
vet heai vs. Clays W icb ia said 10 have teen hrto
eight. en- times in minute. Tie dayr worh Of mnz-
Ze-ioading cannon il rarely more Than one hundred
rounds; Colosel Style artillery at Carthage hred
ninei, 1--we rounds each tb French Tldrd guns h'eu
lut s, verty ru d. each at Slfsrino. gun. there
FORE which j. capable Of bring at The rate % VIZ US
and rounds per hour, bring limited on!y by the nh'e
neees airy for cooling is, ego cialy fm beid aruhef!'
Dcomparably supcrifr 10 slower piece OF o'ahaA'e'
Al the reech-ei-i Z: TIE Clay CANNOT IL IN eHlI" 'n
on the lower ride which allow ter tie b0iihg on" Z"
cylindrical recegs, which Is proug ton OF The 0"fe
of the gum but no. re han dou = is diameter, ana ms
i;s center enirpiy below the bore. Thsls nI''d oy
gieat screw, which has hole in il corresponding 10
he bore of he gun aud prOlongGcn Of II wien ID
partially uuecIewcd. Ills screw "a turned BY ciahA'
To load the gum halt turn backwards rings The pro-
longion Of the bore in lsg with Tie bore VI The guh
when lhe cartridge may be pushed in from behind "A
half turn forwards then up the breeehIe'e anu
brings tie solid portion of il ngainst the bore asan
when il j. fred. Three men are soiheientto work u
when il il in range: 10 work the crank, one 70 pu'
IN the cartridges aud one TO fire. The gun Itseh IS
made by n rolling process recently patented By Mr.
Clay. The carriage Is made Of MeIsey ttee.
In woolacb marsh some experiments have lately
been made with Martins Shells filed wiki molten iron
number Of gun-c.nriages, platforms and Dummies I'd
wood Representing artillery men, planted about
battery upon which was poured storm If molten iron
from these shei fred non 6SpoUuder smooth bore
guns. The effect was terrible. Tl-ee hundred cupo-
las Of a CONSTRUCTION for melting iron Tor these
shells have been received at Woolwich for distribution
round the and 10 the colonies. The cupos con.
sists Of cylindrical shell of Tick wrought iron, lined
with prepared fr-brlkts, with a blasi-fAn attached
TIE Gu ola aud fan mounted frame furnis'ed
with four travelling wheels each of which 70 ~ eDty-
four inches in diameter; an apparatus oontnyed Tor
driving the fan by manual labor is connected with tie
cul ola wien in use by two tight rods, each about III
feet in length, but tlefe are removable from them
When in motion the eupoa and driving apparatus are
entirely separate. Tue living gear Of the fan "a 20
constructed that whenever seampower is available 1t
can al once he applied. When the blas-fan ~ driven
10y manual labor, eighteen required 10 work IT,
with short reeis. In about twenty minutes alter the
fire in the Cupol is lighted The iron lie put in, and in
about quarter of an hour aer the fan has been put
in mott the molten iron can be of into tue shells
A iun Of metal can be melted in about thirty minutes.
Allowing g. ereiore for waste the number Of shells
that be filed in hour 40 Of the eightnch Gs
pouLders, and the zane number Of the tennch &C
FOUNDERS. TIE estimnted weight Of the machine is
live tuns. Upwards Of two thousaDd OF these shells
have been supplied 10 the batteries in the Chatham die,
lrict.