and engineering journal . ater is t>. i -hot off the air or motive powi i I ichine similar to a rock drill, when the water ee( It will also perform ,: function when insuffi- cient v. ater is flow ing, or(3) Watei at an insufficii at pri , It can also he arranged !,c on other side ot piston B I. —Piston. ( —Annular ring in piston —Inlet air port. Dl —Outlet air - Packing mati - i I F —Discs or plates to hold packing material. (1 —Nut drawing discs I I —End or cover platI —Spiral s])rings in compress on J *—Inlet water —Outlet water pipe.
and engineering journal . ater is t>. i -hot off the air or motive powi i I ichine similar to a rock drill, when the water ee( It will also perform ,: function when insuffi- cient v. ater is flow ing, or(3) Watei at an insufficii at pri , It can also he arranged !,c on other side ot piston B I. —Piston. ( —Annular ring in piston —Inlet air port. Dl —Outlet air - Packing mati - i I F —Discs or plates to hold packing material. (1 —Nut drawing discs I I —End or cover platI —Spiral s])rings in compress on J *—Inlet water —Outlet water pipe. K —Locknuts. L —Port communicating pressure in J with A M —Bolt holes for cover plate-. N — letter from Mr. 1 Fraser Jones, i-elative to the above,appears in our ci rrespondence c< lumns. SULZE HIGH-LIFT CENTRIFUGAL PUMPS. For Mine Drainage, Waterworks, Etc. ir^..^L. Pumping Set suitable for lift of 2,500 ft. LARGE LOCAL STOCKS INMEDIUM AND LOW-LIFT PUMPS. For particular* apply to: RICE, WILSON &HERD, 86,87,88,96, Standard Bank Chambers, Commissioner St. Telephones 2299 & 2330. JOHANNESBURG. Also South AfrU-an A pottl *JT CALLENDERS CABLE & CONSTRUCTION CO., THOMSON-HOUSTON CO, LTD, etc, etc. 286 THE MINING AND ENGINEERING JOURNAL. Jburg, October 29, 1921. To Prevent Regrets, and to EnsureHIGHEST EFFICIENCY U8E ONLY Duxbak Waterproof Leather Belting ON ALL POWER DRIVES AND Denver Rubber Conveyor Belting FOR ALL CONVEYING PURPOSES.| tULL STOCKS ALWAYS CARRIED. % The Denver Rock Drill & Machinery Co., Ltd., Telephone 1426, Box 2367. SOUTHERN LIFE BUILDINGS (2nd FLOOR),HARRISON AND MAIN STREETS. JOHANNESBURG. Cablet & Telegramsi GYNETH. I HUMBLE SAFETY DETACHING HOOK SOLE AGENTS. GEO. CRADOCK AND CO. (), LTD. 75-77, CULLINANBUI LDINGS. Box 316. Telephone 539. Tel. Add.: ROPES. JOHANNESBURG. :: THE GEN
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectmineralindustries
