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Lombard Steam Log Hauler
The Lombard Steam Log Hauler, patented 29 May 1901, was the first successful commercial application of a continuous track for vehicle propulsion.〔Auman (1984) p.99〕 The concept was later used for military tanks during World War I and for agricultural tractors and construction equipment following the war.
==Description==
Alvin Orlando Lombard was a blacksmith building logging equipment in Waterville, Maine. He built 83 steam log haulers between 1901 and 1917.〔Auman (1984) p.100〕 These log haulers resembled a saddle-tank steam locomotive with a small platform in front of the boiler where the cow-catcher might be expected. A steering wheel on the platform moved a large pair of skis beneath the platform. A set of tracked vehicle treads occupied the space beneath the boiler where driving wheels might be expected. The locomotive cylinders powered the treads through a gear train. The log haulers mechanically resembled 10- to 30-ton snowmobiles with a top speed of about .〔Holbrook (1961) pp.77-80〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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