April 5, 1918. THE COLLIERY GUARDIAN. 685 AIR COMPRESSORS Standard Types up to 5,000 c. ft. per min. Fitted with special light weight valves, forced lubrication and thorough intercooling arrangements. Special Types for Air and Gas storage at high pressures up to 6,000 lb. per square inch. MUM ..jl ■< I iK MAKERS also of High-Speed STEAM ENGINES, STEAM TURBINES, High and Low Lift Centrifugal Pumps, AND FANS for all purposes. PETER BROTHERHOOD LTD., MANCHESTER: Mansfield Chambers, O O OO11F 0 GLASGOW: R. HENDERSON, St. Ann’s Square. IM 0 BatJ tJ OO I 48, West Regent Street 30-H.P. DOUBLE DRUM HAULAGE GEAR. AMD ' ' J .'i . ■ SJSS life .. ■ -.•A’- .Wftaw* J-f! M. B. WILD > CO. LTD., Birmingham. Telephone—206 East. Telegrams—“Hauling, Birmingham.” Manufacturers of Hauling, Winding, and Pumping Plants, also Capstans, Winches, and Patent Dirt Tip. Sole takers of “ Exhall99 Overwind Preventer.