The American & British Mfg. Co. of Providence, Rhode Island, USA used the A&B trade name for gas-electric two-wheel tractor units it built for converting horse-drawn fire equipment into self-propelled units. The tractors used a 399ci 4-cylinder engine to power a GE electric motors in each wheel. Beginning in 1916 the company also built 3- and 5-ton 4-wheel trucks by adding a gooseneck attachment, drop-down frame, and rear wheels to the tractor unit. A&B production faded out after 1921.
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