Power scraper with apron on a movable pivot axis

Details Power scraper with apron on a movable pivot axis Power scraper with apron on a movable pivot axis

1975-12-24

1977-03-15

Eickholt, E. H.

Excavating

Snow or ice removing or grooming by portable device

Railway clearer

37129, E02F 500

Patent

active

040116697

ABSTRACT:
A power scraper, of the type which has a bowl with a forward cutting edge and an apron which assists in the loading of the bowl, closes the loaded bowl, and is elevated for dumping, is provided with improved apron operating means. The operating means includes a translating means which shifts the apron pivot axis from an initial position that it occupies when the apron is elevated so that the path of the lower edge of the apron to closed position is forward of and below an arc of a circle struck about said initial position of the pivot axis.

REFERENCES:
patent: 1891266 (1932-12-01), Le Tourneau
patent: 2344313 (1944-03-01), Lichtenberg
patent: 2396287 (1946-03-01), Robb
patent: 2529848 (1950-11-01), Murray
patent: 2642681 (1953-06-01), Wagner
patent: 3471952 (1969-10-01), Peterson
patent: 3571955 (1971-03-01), Eiger
patent: 3574960 (1971-04-01), Peterson et al.
patent: 3708896 (1973-01-01), Eftefield
patent: 3739506 (1973-06-01), Klett et al.
patent: 3889404 (1975-06-01), Eftefield

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