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“Clarkat” and Clark Steel Trailers used by Marra Bros., Stevedores, unloading a Dollar Line round-the-world ship at Dollar Pier No. 9, Jersey City, N. J. “Clarkats” and Clark Steel Trailers unload the ship, reload it and speed it out to sea again “Clarkat’’—industry’s smallest tractor —adds to the ship’s profit by keeping it at sea, carrying pay cargo, a maximum number of days each year. It does that by speedy handling of cargo. So small that it easily turns around in a box car— so powerful.that a 25-ton trailer load is a normal job for it. And it’s gas powered—capable of 24-hr. continuous operation and just as potent the last hour as the first. It’s the only direct gas driven industrial tractor with so much power per pound of “Clarkat”—active as a cricket, nimble in traffic, a bear for work. Only 78 in. long, 844 in. wide, weighs 2700 lbs., has 2,000-/b. max. drawbar pull, turns in a 51 in. radius, Operates at 44 to 714 miles per hr. Speed cargo handling weight and so small a turning radius. It pulls trailer trains up ramps, through narrow side ports, along crowded wharves —saving time, cutting cargo handling costs. The driver rides at rear and couples and uncouples trailers without dismounting. J Clark Trailers are built as trailers should be—for long, hard, gruelling service. Platform of l4-in. steel plate, welded corners, alloy steel axles, spindles and king pins, Clark Universal Couplers, rubber-tired wheels. Capacities 2 to 4 tons—54 to 89 cu. ft. Write for ‘‘Clarkat’’ and Clark Trailer Bulletins and information on cargo handling costs. The Clark Tructractor Co. Battle Creek, Mich. Attach this ADVERTISEMENT to your inquiry A ship earns money at sea —not at the wharf MARINE REvirew—August, 1931 73