METHOD OF WORKING STEEP DIPPING SEAMS HORIZONTALLY HAVING RATE OF DIP OF 10 TO 
25 DEGREES. 
SECTION ALONG THE ROOM ROADS AND ACROSS THE HOISTING SLOPE 
a Ne Shome pittar 
. | yj 
eer ey — 2 
eae ee ee | Cen tee ee 
2 ll eee 
\ COAL CAR READY FOR | 
le 
LOWERING ON HOISTING OR | 
COAL CAR AND TRUCK | 
y SLOPE TRAM 
—— Se ee | 
SLOPE TRACK A(< (0) 
se Se : OOM TRACK 
1 
| 
4 
3 
J r H 
: Sea 4 
JULIUS BIEN & CO.NEW YORK 
