246 Hie Trials of Potato Diggers and Potato Sorters. 



Three tines of a specially' curved shape were titted to each 

 of the four digger arms, revolving just behind the share, and 

 with the aid of the peculiar feathering action the tubers were 

 quietly dug, and well deposited ready for the pickers, very 

 free from damage. 



All adjustments necessary to enable the machine to be 

 w^orked properly in various soils and different wddths of drill, 

 are very easily and quickly made, after which all the driver 

 has to do is to put the machine in and out of work by a 



Fig. 1.— Martin's First Prize Potatoi Digger. 



convenient hand lever, which is quite easy to operate, owing 

 to the machine being properly balanced, and to the construction 

 of the frame, by which the driver's weight is utilised for 

 lifting. 



The raiser is usually sent out fitted with a hook for clearing 

 a way through the tops and weeds, to enable the stem of the 

 share to pass without clogging. This hook is recommended 

 by the maker in preference to a skief, owing to the liability of 



