Iowa State University; Agricultural and Biosystems Engineering Dept.; Dynamometer
A team of horse are hitched to the rear of a modified truck. A group of men are standing on the truck bed along with some equipment. An early form of the dynamometer is being used to test the horses' pulling power.
Farm Equipment; Agriculture; Iowa State University;
A tractor driver and Iowa State Professor J.B. Davidson looking at an Iowa integrating and recording traction dynamometer, mounted on the linkage between the tractor and the piece of farm machinery being pulled. The farm tractor has rubber tires....