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186 THE MARINE REVIEW February, 1919 The Whiting Type “R” Crane Trolley | shown below was furnished the Seaboard Air Line Ry. for their Portsmouth, Va. {I : anor for handling locomotives, two 80-ton trolleys operating on an 86 ft. span bridge. > The type “R” is essentially a “Safety First’’ trolley— it has been approved by steel mill engineers as meeting all ; safety requirements. The entire train of gears is enclosed and operates in oil bath; with exception of drum shaft and axles, no shafts extend across the trolley; all shafts in gear trains are on same line. Trolley sides and separator made cast steel if desired. 3 Simple, rigid construction throughout. Standard sizes from | to 100 tons capacity. Write for Catalog 130 Complete Foundry Equipments CRANES OF ALL TYPES WHITING FOUNDRY EQUIPMENTCO HARVEY-ILL.U.S.A. CHICAGO SUBURB. SHIP BOILER STRUCTURAL Ss. Severance Mig. Co. Glassport, Pa. (Suburb of Pittsburgh) Please mention THE MARINE REvIEW when writing to Advertisers