7. The Lewis drain digger. The vertical pair of discs cut into the ground, the cut section being picked up between the discs and carried over the top for discharge on to the rotary horizontal disc which carries the spoil well clear of the machine and tractor. 8. The Lewis digger in action. A cut 6in. to Bin. deep is made with each run; the front wheel enters the ditch and regulates ' the depth of the second and subsequent cuts.
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https://paperspast.natlib.govt.nz/periodicals/NZJAG19470115.2.45.4
Bibliographic details
New Zealand Journal of Agriculture, Volume 74, Issue 1, 15 January 1947, Page 83
Word Count
807. The Lewis drain digger. The vertical pair of discs cut into the ground, the cut section being picked up between the discs and carried over the top for discharge on to the rotary horizontal disc which carries the spoil well clear of the machine and tractor. 8. The Lewis digger in action. A cut 6in. to Bin. deep is made with each run; the front wheel enters the ditch and regulates ' the depth of the second and subsequent cuts. New Zealand Journal of Agriculture, Volume 74, Issue 1, 15 January 1947, Page 83
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