Two stroke dredging plant

Details Two stroke dredging plant Two stroke dredging plant

1973-03-13

1977-01-25

Crowder, Clifford D.

Excavating

Peat excavators

37 71, E02F 388

Patent

active

040043576

ABSTRACT:
A watercraft mounted pneumatically operated dredging plant comprising a dual shovel assembly in combination with a pumping unit, the shovel assembly including two shovels, each of which has a working edge facing in a direction opposite from that of the other, and the pumping unit having at least two pumping chambers for alternately connecting one of the shovels to a source of compressed air. The shovel assembly and pumping unit in assembly being adjustably suspended from the watercraft with respect to height and with the inclination of the working edge of each shovel with respect to the vertical being controllable to effect to-and-fro dredging strokes by the shovel assembly.

REFERENCES:
patent: 548242 (1895-10-01), Wood et al.
patent: 604628 (1898-05-01), Mc Dougall
patent: 645660 (1900-03-01), Bell
patent: 906802 (1908-12-01), Horton
patent: 1691686 (1928-11-01), Vorhies
patent: 2337818 (1943-12-01), Hill et al.
patent: 2933837 (1960-04-01), Nelson
patent: 3600832 (1971-08-01), Smith
patent: 3624933 (1971-12-01), Faldi
patent: 3748760 (1973-07-01), Schnell

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