The subject of the accompanying engraving will prove a very valuable labor-saving machine, from the great quantity of potatoes it will dig, in comparison with the number jaised by th same amount of ...

The performance of three similar types of vibrating potato digger blades was estimated by observing the potato separation and material flow on the bottom plate. Each machine was tested with different ...

Before John Hanson’s revolutionary potato digger, the hand spade or conventional single furrow plough or drill plough was used. A special potato plough was available to “split” each drill by cutting ...