Apparatus for controlling the position of the pivoting floor and

Details Apparatus for controlling the position of the pivoting floor and Apparatus for controlling the position of the pivoting floor and

1979-11-01

1981-03-17

Eickholt, E. H.

Excavating

Snow or ice removing or grooming by portable device

Railway clearer

200 6144, 200286, E02F 928

Patent

active

042558859

ABSTRACT:
PCT No. PCT/US79/00927 Sec. 371 Date Nov. 1, 1979 Sec. 102(e) Date Nov. 1, 1979 PCT Filed Nov. 1, 1979
An earthmoving scraper has a pivoting floor which pivots from a closed position to an open position to dump and spread material previously loaded into the bowl of the scraper. Various types of earth being loaded and spread require different dump openings of the pivoting floor and varying heights of the strikeoff blade which spreads the dumped earth. Heretofore, it has been difficult for the operator of the earthmoving scraper to selectively position the pivoting floor and strikeoff blade to insure a specific dump opening and a specific height of the earth material as it is spread. The present invention provides a switch (36) for controlling the hydraulic cylinder (34) which positions the pivoting floor (26), a switch actuator (66), and a plurality of mounting positions for the switch actuator (66), thereby selectively controlling the dump opening of the pivoting floor (26) and the height of the strikeoff blade (27).

REFERENCES:
patent: 2873332 (1959-02-01), Williams
patent: 3235692 (1966-02-01), Kucera
patent: 3916545 (1975-11-01), Hochmann et al.
patent: 3952432 (1976-04-01), Boersma
patent: 4133122 (1979-01-01), Girard et al.

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