. Locomotive engineering : a practical journal of railway motive power and rolling stock . BOSTON BELTING CO. JAMES BENNETT EORSYTH, Mdnufacturmq Kgent and General Manager. WE LEAD— Others strive to imitate. RUBBERGOODS MANDFACTURERS OF ,v Air Brake, Steam and Water Hose,-^ Packing, Gaskets, Washers, « and Matting. BOSTON:256, 258 and 260 Devonshire St. NEW YORK: 100 and 102 Reade St. CHICAGO:109 Madison St. SAN FRANCISCO:24 Fremont St. master mechanics ..* specify Advance SafetyEmery and CorundumWheels, with or withoutwire web, and EmeryWheel Machinery madeonly by : : : :. Sterling Emer
. Locomotive engineering : a practical journal of railway motive power and rolling stock . BOSTON BELTING CO. JAMES BENNETT EORSYTH, Mdnufacturmq Kgent and General Manager. WE LEAD— Others strive to imitate. RUBBERGOODS MANDFACTURERS OF ,v Air Brake, Steam and Water Hose,-^ Packing, Gaskets, Washers, « and Matting. BOSTON:256, 258 and 260 Devonshire St. NEW YORK: 100 and 102 Reade St. CHICAGO:109 Madison St. SAN FRANCISCO:24 Fremont St. master mechanics ..* specify Advance SafetyEmery and CorundumWheels, with or withoutwire web, and EmeryWheel Machinery madeonly by : : : :. Sterling Emery WheelManufacturing Co. Tiffin, Ohio. THE AIR FOR COMPRESSION gets into thecylinder of a Norwalk Compressor throughCorliss valves which have a positive movementfrom the main shaft. The ports are large, clear andopen directly into the cylinder. Poppet valves require a vacuum within the cylinderto open them, andpiston inlet valvesthrottle the supplyfrom mid stroketo the end. Of the threekinds, which is ^the most efficient? The Norwalk Compressors have many points ofsuperiority. Business men and engineers are welcometo catalogs upon application to THE NORWALK IRONWORKS CO,,
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
