Factory and industrial management . {BOLTS. :4*itNS/DE CONNECTIONS,ATDffILL HOLE INTOCOAL MINE. FIG. H. OUTSIDE AND INSIDE CONNECTIONS FOR A PIPE LINE ENTERING A MINE THROUGH A DRILL HOLE. n /S l Uli ENGINEERING MAGAZINE. MINE ITOOF. UA/DE/r- GffOUND eXHAUS T CONNECT/ONTO DfflLL HOL£. FJC. I. UNDER-GROUND EXHAUSTCONNECTION. sion only. When the exhauststeam is not immecHately con-densed in the mine, it is con-ducted to a separate drill holeand connected directly to thecasing pipe. As pipe lines in the minecan be very short and direct,the sup})orts present no diffi-culty ; old T-rails, as trans-
Factory and industrial management . {BOLTS. :4*itNS/DE CONNECTIONS,ATDffILL HOLE INTOCOAL MINE. FIG. H. OUTSIDE AND INSIDE CONNECTIONS FOR A PIPE LINE ENTERING A MINE THROUGH A DRILL HOLE. n /S l Uli ENGINEERING MAGAZINE. MINE ITOOF. UA/DE/r- GffOUND eXHAUS T CONNECT/ONTO DfflLL HOL£. FJC. I. UNDER-GROUND EXHAUSTCONNECTION. sion only. When the exhauststeam is not immecHately con-densed in the mine, it is con-ducted to a separate drill holeand connected directly to thecasing pipe. As pipe lines in the minecan be very short and direct,the sup})orts present no diffi-culty ; old T-rails, as trans-verse beams, or as posts un-der the pipe, are commonlyused. All pipe considered in thisarticle is what is known aswrought-iron. This has nowbecome a general term whichincludes all butt or lap-weldedpipe of either steel or material is not distinct-ly specified, the pipe receivedwill usually be steel, and w^ill be under-weight by from 5 to 10 percent, the greater variation being on piping from 8 to 12-inch, inclu-sive; full-weight pipe will run very close to the list weight andshould be specified on all live-steam work. For bends of radius lessthan six diameters, extra-strong pipes is often advisable to compen-sate f
Size: 1297px × 1926px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubj, booksubjectengineering
