International Harvester 'Junior' tractor, 1921.
© Science Museum / Science & Society Picture Library
Junior' 8/16 hp agricultural tractor with a four-cylinder gasoline (petrol)/kerosene engine, manufactured by the International Harvester Corporation (IHC), Chicago, Illinois. This tractor, introduced in 1917 was the first of IHC's 'lightweight' designs. It weighed just 1.5 tons, about the same as the Fordson Model 'F'. While it enjoyed a measure of succes, it was already outmoded by the Model F's cast iron unit construction, and the Junior went out of production in 1922, the same year as its sister the heavyweight 'Titan' 10/20. IHC developed a tractor powered reaper binder, the binder obtaining power from the tractor's engine through a power take off (PTO) shaft and flexible coupling. The 'Junior ' was the tractor for which this was designed.