, 1873-08-29
DEADLY pERRICKS.
A General Crash Among Those al tic
Now p0st.O OiIlco and Gus.
tOnl.K0usc.
Two Thrown Down md Others Dis
., urrangod---one Man In
atantly Killed.

Tho first accldout TINT has yot occurred In tho
building of tho now post-O Office rnsuitod in tho
instant dnath Of Tho,naa Connolly, sailor, om-
ployod by Tho riggor to ralut tho wiro guy-ropoR
loading from tho dcrricl-honds to tho largu posts
got Ia tho ground. Tore nro six tlegrlcks In MI,
divided into sets of three, tho dorrioks of each
got being connected togothor by guys. About
2 o'clock yesterday aftornoon the middle derrick
OIL tho east side was bciug used, according to tho
foremnns account, to lower atouc weighing
four tous into placo, .ahd tho derrick In the
southwest cornor Of tho block VAS just lit
Ing a stone !: Of three toms weight.
These derriuks woro connected by. guys, and
wore also cacl Btoadlcd by two guys to large
posts aet In the ssreot. Tho man Co.uolly was
nltting In sling travelling Oh tho guy leading
luto Dearborn street, whom tho post bnddpnly
.snapped sl,ozt. aud the middle derrick pitched
.oyer to the westward, throwing lin adutanco II
soycr l00 foot 10 tho floor uf tic building. Ho
ed, aad probably died INSTANTLY. Tho fsll of tha
middle dorriok loft tho othor two Of that ant
partly unsupported, mid tic ono engaged IN lift
Ing, foil also. 1t was wonderful that thoro wcro
but. though many woro conniaerublY fright
0Ir. Rankin statoB that tho posts wore sot and
everything conilootod with the rigging Of tho
ueET1thb HoHu ny NAPSs 4l6u4llt suo 1cHuitl 4ab~
goE for tho aevernnlent, Who has done eli tle
work Of TINT description on tho Now York and
Boston cuAtom-Housos. Tho posts had oil been
carefully toKtcd with ton tons each. They
aro OF tho sn,no character ls thoso used o1se-
where In Government work, and have a1wnya
givon perfect satisfaction and Bnfoty. Thoto
were four broken in all, OF Which two wore OH
Clark, aud two On Dearborn street. The NORTH
ono On Dearborn alrect broke ilrst, aud tho
otllars wout QUO aftcr tho otlor wlio the derrcks
fell. They arc ma1o OF O. pine timber. 14S16
inchos croHn section. THO fractures wero short,
extending oyor Six inches 1onsltudinaliy. aud
tho wood was perfectly bright aud froo from rot
There stouled to DO every eriaauco that tho
break occurred simply from an exccasivo atrain,
The post which broke arHs was oIly In roality as
strong AZ ita pino. tho oak having eyideully
broken nfter tho pine. Tho strength Of tho
pino alono would bo 1ftoou tons, that Of the
oak nlevon and ouo-half tons, md the two. il In
Ions. But the pine alono atood the etrain, md
also WAS out into for tho insertion of brace Ut
tho foot, reducing its strength threo-oighths Of
wlioh this post could bear was on
ly about nue aud ono-hnlf tons
at the timo OF the accident, though It may orig
lnhlly lnvo stood ton tons. 1t therefore seemed
probable that the strain was actually greater
than supposed, md that tho posts woyo chilled
upon for too 1nnoh. It nnust bo recollected that,
although the Weight lifted might layo been only
been much greater. owing to tho gteat leverage
with which It aotoL II anything can be done to
tcat tho condition Of tho other posts, it should
bo attended to Immediately, Bneo there BeomB
no tionbt that there four broke for lao|i OF
proper unity Of reElutenco Of the oak and piuo.