The Indianapolis sentinel. [volume] (Indianapolis, Ind.) 1880-1904, 1885-01-11
THE PR CESS or MAKING sa0P.
bow the Globules are torned ia Their
Fsn Through the Tower, aud chen
assorted.
[New York Tribune.i


FAN Through ,he Tower, aud chen
assorted.
FSew York Tribunal
Every person who has walked about shs
lower part Of this city must have noticed q
high, round tower, NJ high as the road way OF
toe bridge, which rearB Itself nigh ab0ye the
surrounding buildings and has small win
coTs at ciferent places. This tower is in
Centre street. near Worth street, and belongs
70 tie Colwell Lead Company There are
s-Yayai OF these towers IN this city. They
are PLACES built especisily for the casting
art manufacture of shot. Tbs tower rise
10 Il heis 1T of i16 feet. snd is fifty feet in dt-
att eter 20 The bsse II diminisass IN dis ne.
.er IS is astends. bciug about thirty leet
seross at ms TIP. /. IS divided into several
stories. A circular stairway, msGe of iron.
eIiencs 10 the sanImig. giving ACCESS to toe
ssvefal sfor es. Great height is ESSENTIAL sor
cssttf 9 "a the lead must coil IN the descent
and thus assume y spherical shape. tf hot.
il wsDld hs;ten when il strikes the water
into which il falls.
The 6rSt method is ioaking what is called
temper" This is A mixture of arsenic s8o
Iced The mixture IS melted in large kettles
and Is constantly sSlmmed and stIrred. Il
Is cast in bars, the same as lead. When tle
temper is mxde 1t IS carried to tae top tiDor,
where there are kettles and 4 furnace for
melting it. The temper is mixed with the
cad. as pure lead would assume various
shapes IN casiiog; bar When mixed with the
tenn per IN the o. proportion of three ton of Isad
20 one ton OF temper. Ii taxes the shape VI
glnbuiss when il Is cast.
The casting pans are large colande-s.
rcuHd pans Nth holes perforated IN she
bottom. The casting is ali done on the top
floor, and the colsuder is suspended over an
opening il the floor, which gots lnroasn
tts entire length of tbs Building u the
ground, where there is a we'll OF water The
lead ~ melted in laTge kettles aud is dipped
out anu poured into the colander with ladles
which have long handles. Is oozss through
tie hoes in tbe bottom OF the Colander ans.
fsils through the opening TO the ground
fioor into the veil The shot is laken oue
OF Tire we'll By smell buckets fastened {, a.
euoless belt. which runs over q wbeel.
Which carries il from the we'll np 10 n lou-
bet metal table Here the shot ia constantly
stirred be usn with lnng rskes, aud TIE
beat fapid ' dispels The moisture, and tac
shot socn bscDmes reJiec;ly DIV.
1tis taken FROM the dry tnc tn0;e TO t3e
screeIers. q ser!fs OF tables with narrow
cls niDgs between them. the tables being Sc
al q sill Int snpie. IL the shot is round ANT!
perfect, it roiis rsp'5iy sloDg these ta,iss,
skipping the Openings until I, reaches =
box at the extreme ~nd, into which il fall
IL IL IS Imperfect. u can not rolf fast. sUi
falls Into tie openings. under woIca b,xes
Are placed.
The shot then gees - the 90 pa-sters, whica
are q series sf drawers. not unlike a burs-r.
which roofs cacs wsyd and farxart nv ma.
chipsry- The net; is poured inso The upper
crawer. which hes 81 iron bottoin perforated
With holes Of a certain size. The second
dFawer has holes OF q smaller s re, and 30 on
down TO the lowest drawer, the bottom Of
esch drag e he ing perforated with holes OF a
size smaller than those IN tbe drawer above
IL The backward and forward motion
throws tie shot from side TO side, let ting all
II sbot the size of the holes or smaller pass
through into the second drawer. while all
lay than the holes Iemaiu in Ire drawer.
Ih- ssm- Is repeated dD~B - fne Lowest
drawer. - tnet each drawer Contains 4
smaIlsr s,ze o!shot tran the one inme iiz.ely
anrys IL
Tie next Process i polishing Tns shot;s
PIT 'Dtc iFYegnlarsaaped i,oa boxes. which
~ccrIiDpslly gevolve When the b5x ia
resriy fnil. poWdered nlscg lead Is pat ia.
fhe i7Tsgulsr motion OF the box throws the
She; rom s'ds u side. AID the black lsai Is
50 Ercund MO IL that u car MT bs rubbed
OF Ard Il Is slNs shsi gives it tls oeaa.ttai
sairs urIsa-sace.