2021 - Volume #BFS, Issue #21, Page #20
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“Stonebine” Clears Rocks From Fields
The flint rocks that Jack Bailey and his crew pick out of fields near Lyme Regis, England, are worth $65 a ton in good condition for use as building materials. Commercial rock pickers have spring tines that flip rocks into a hopper, leaving them dirty and breaking off razor-sharp shards that stay in the field.
  The men spent 5 years designing and building their “Stonebine” on the chassis of a 1970’s Massey Ferguson combine. They stripped almost all components off it except the engine, axles, and cab. A 6-ft. wide digging head up front scoops the rocks onto a conveyor that carries them back to a rotating screen that cleans the rock and feeds it to an elevator that unloads to a following wagon.
  To give you an idea of how much rock they can “harvest”, they picked up 1,250 tons from a 10-acre field in one day.

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2021 - Volume #BFS, Issue #21