Tractor Jacks: Small but Mighty Mechanical Lifting Devices

When it came to lifting tractors and equipment, early mechanical lifting devices eased heavy loads.

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Top: This No. 4 Galion jack shows the double-clevis raising mechanism. The upper clevis does the lifting and the lower clevis holds the load.Center: Silver King 5-ton bottle hydraulic jack made in Cleveland, Ohio.Bottom: This wood jack has a metal strip affixed to the lifting notches to provide for longer life.Left: Barrett 10-ton jack with removable top plate.