Mechanical Contracting & Plumbing January-December 1912 . ch alsoserve as clean-outs, enables us to get atany portion of the system on a momentsnotice. Here is a sectional view of thesand pocket and cleanout as used in ourfoundry. The main sand trap is just inside ofthe factory wall with the discharge run-ning direct to the city sewer. This trapis built of concrete. It is five feet in di-ameter and seven feet in length. Theinlet pipe is six inches above the outletand the division or trap-forming wallcomes to within two feet of the bottomof the trap. Whenever we get a depthof a little more than
Mechanical Contracting & Plumbing January-December 1912 . ch alsoserve as clean-outs, enables us to get atany portion of the system on a momentsnotice. Here is a sectional view of thesand pocket and cleanout as used in ourfoundry. The main sand trap is just inside ofthe factory wall with the discharge run-ning direct to the city sewer. This trapis built of concrete. It is five feet in di-ameter and seven feet in length. Theinlet pipe is six inches above the outletand the division or trap-forming wallcomes to within two feet of the bottomof the trap. Whenever we get a depthof a little more than two feet of sandin this trap, the water backs up ofcourse, and we clean the trap throughthe 2V2 foot manhole. To meet the pos- ^ f of the outlet becoming clogged,a clean-out has been placed herethrough which it is a simple matter topush a clean-out rod. The overflow for the blowing-outranks is connected with an elbow by areducing slip-joint connection which en-ables us to lift the reducing slip-joint orcover and throw the overflow pipe to one. Detail of main sand trap for blowing-out tanks for foundry. side. This gives us an unobstructedspace to clean the drain-pipe betweenthe elbow and the sand pocket. Whenit is necessary to clean the accumulationof sand from the blowing-out tank thisoverflow pipe is merely thrown aside, thewater removed by syphonage and dis-charged into the elbow. The whole oper-ation requires but a short time and the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplumbin, bookyear1912
