Excavating – Peat excavators
Patent
1978-01-09
1980-05-13
Crowder, Clifford D.
Excavating
Peat excavators
37 73, 37 75, 114248, E02F 314, E02F 904
Patent
active
042021197
ABSTRACT:
A waterway cleaner comprising a hull supporting an extendable and swingable ladder mounted at one end, or bow, of the hull, a power driven endless chain of spaced scoops mounted on the ladder for scraping and excavating material from the bottom of a waterway and a belt conveyor on the deck of the hull extending beyond the stern of the hull for moving material dumped from the scoops to a dump scow. A pair of cables wound on power-driven winches, mounted one on each side of the hull, are used to displace the hull to a selected location on the waterway. A scraper is mounted vertically swingable around a pivot proximate the stern from a raised position to a submerged position in engagement with the waterway bottom. A pair of vertically movable legs positioned one on each side of the hull are adapted to engage the waterway bottom to stabilize the hull and maintain it in a fixed position. The scoops, conveyor and winches are operated by hydraulic motors. The swing of the ladder, the extension of the ladder and the movement of the scraper and legs are controlled by separate hydraulic jacks. All of the hydraulic components are supplied with fluid under pressure by a plurality of pumps driven by a single or a plurality of power sources.
REFERENCES:
patent: 104594 (1870-06-01), Howard
patent: 288091 (1883-11-01), Menge
patent: 366010 (1887-07-01), Knott
patent: 619601 (1899-02-01), McDougall
patent: 1307370 (1919-06-01), O'Connell
patent: 2204584 (1940-06-01), Flower
patent: 2606375 (1952-08-01), Braun et al.
patent: 3146537 (1964-09-01), Von Bolhar
patent: 3874101 (1975-04-01), Cummins
patent: 3919790 (1975-11-01), Sasaki et al.
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