Weekly national intelligencer., 1851-08-16

pounds charcoal 46 59S bushels anthracite coal
pounds pit coal, $1,000 dos fire stone, ,4s0 pounds;
furnace clay, 1874 bushels and wood 200 (2ee cords
The result Of The operations Of last year il follows:
Percussion mnskets complete q, 900
Percussion musketoons complete. 900
Muskets altered from flint to percussion. .57,272
Extra cones for issue with muskets. ll9, 757
Compound erewdrvers for issue with do. 93, 90s
Percussion hammers, (for other poss) ..4l, ,6s2
Arm ches9 and packing boxes. .295
Tilt-hamuers for welding barrels. s................2
Componehts Of muskets for other posts, equal
percussion muekes. ...............5 so
Col R1jtHT, the commanding officer at the armory, re-
ceved an order alter the flint lock muskets percuson
practicable. at cost not exceecing 81 per mnske This
work ~ commenced 10 July, l649, and the whole number
lla406 sre complstsd BY February, 1851, st cost Of
hsp3 sran1 tosi Of lsrp Adred and thousand nine
hundred and fjfy muskets.
Ths Iasrsss number Of msn employed during any one
sufh ls ysar was 43l the smallest number
per month, 3el3 The average pay Of these making
Of lost time, and reckoning in ALL from the high
es 70 the lowest was $40 per month.
In the month Of June just past the division office, labor
and laborers, follows:
armorer military stoekeeper, clerks, II inspectors, l6
machnists.
It Eighteen barrel forger, lock forgers,
bayonet forgers mrod forgers 10 mounting orgers,
anneaers IA borer 26 mle diers turner's, grind
ers IL barrel 6lera "a lock 6lers. bsyonet flers
mounting les sppendage 6er l6 poishe l6 stoekes,
barrel fnisher mounting 6nishers lock fnishers,
arm 6nisher, appendsge fnishers
Jobbers.-Five smiths, hler, IL carpenters, mason
and 36 laborers, all on wages.
The above give total Of $40 men, employed in june
which s the snaes number employed n any month during
the year. with the exception Of May, when the number was
the Same.
little business done The work formerly done here
yesn since removed the Hill for convenience end the in
production Of engine in the Hill buildings was made
to do the work formerly done BY waerpower here prn-
cipal mart Of these shops and their waepower leased
Mesns rneesol Dooli.e & Co., and constitute the esab
Ishment known ss the Massasot Flour Mills. The Gov
ernment however, carry rolling mill here, where every
scrap Of on iron filings &C., produced in the process Of
manufacture melted and rolled into stock 70 bc recon
sumed 70 that pound Of iron thrown away sold at
less than s value This rolling mill 10 furnished with
complete nat Of machinery for rolling and sitting iron
tthsmmers cutting shears for bars, and three water
wheels - the driving power
Al the Middle Water Shops, the process Of forging bar
rels rsmrods and bsyonets carried There here
eighteen thammers carried by twelve water wheels These
shops with The Lower, employ hirty-four men. new in
venon has Just been completed here, and which will be
Of great importance 70 every large forging establishment in
the country. The old method Of driving thammer 10 by
water wheel to each hammer, to every two hammers.
The necessity Of compelling this arises from the fact that the
hammer driven by belt from regular moving power,
the speed Of the hammer could be increased decreased
suddenly at Will DC new lnVenuon cOusiso OF IoOe0
driving loose that when is not shtensd BY bear
ing against il the driving drum has action upon it.
pulley attached compound lever half way between the
drum and the pulley where the power applied 70 the ham
e snd by acting upon the lever the pulley pesses upon
the belt until far tghtened drive the hammer
the utmost speed Of the drum When smaller speed il
CURED the lever partially released allowing the belt Slip
and In this manner, BY increasing diminishing the tension
the belt any required speed attained The result Of this
simple and beautiful invention 10 thaa thousand thamme
if necessary, may b driven BY water wheel, or BY
steam engine.
At the Upper Water Shops there are fifty seven men en-
poyed Here the boring, tuning, grinding, and polishing
Of barrels, ramrod and bayones effected and here also
the emperng and polishing Of the lock work. The machi
ney these shops consists Of thirteen boring banks nine
turning engines large grndsones four turning athe'
ten milling machines two barrel polishing machines, one for
bung bayonee two screw cutting machines punching
press wood paner, crcusr saw, machine for
splitting leather, and oil driven by four wheels
The polishing shop and the shop on the south side Of the
stream have been condemned, and are be rebuilt We
noticed in the polishing ingenious conrvsnce
Of comparatively recent Introduction for spang the lungs
and lives of boee who would Otherwise live Cor die)
constant atmosphere Of emery dust. long box the
poishing wheels Tubes with mouths opening upon each
wheel proceed from this long box. In the room below,
blower arranged in such connection with the long box to
exhaust the air within it. and, Of course, there IL strong
current OF air passng from each wheel into s appropriate
tube. The consequences is that eli the dust Of the
drawn into the box and delivered ou, Of doors 10 constant
cloud.
The filing shop 10 located on the h and employs ninety
three men, larger number than engaged in any other
department The machinery in this department consists Of
one boring bank, one tuning lathe two turning engines