Excavating – Peat excavators
Patent
1980-02-05
1981-06-09
Eickholt, E. H.
Excavating
Peat excavators
37 52, 172188, 172199, 172387, E01H 400
Patent
active
042716128
ABSTRACT:
An apparatus for producing ski tracks for a ski trail, comprising a sliding/planing body with a flat sliding surface which curves upwardly at the forward section of said body, and spaced-apart track-forming members depending downwardly from said sliding surface. The track-forming members each comprising a bottom surface and two parallel side surfaces whose forward portions converge to form a plow portion while the bottom surface extends forward in full width beneath said plow portion and at least to the tip of it. A drag frame pivotally attached to the surface of the sliding/planing body rearward of its forward section. The axis of pivot for the frame running transversely of the direction of advancement for the sliding/planing body. The trackforming members producing a track with strong, compacted walls, without weighing down the apparatus.
REFERENCES:
patent: 286969 (1883-10-01), Smith
patent: 378307 (1888-02-01), Haines
patent: 428658 (1890-05-01), Week
patent: 851199 (1907-04-01), Doyle
patent: 1445952 (1923-02-01), Hooper
patent: 4014116 (1977-03-01), Baechler
patent: 4021942 (1977-05-01), Purdy
patent: 4056328 (1977-11-01), Maxey
patent: 4110919 (1978-09-01), Henrichon
patent: 4122614 (1978-10-01), Cheney
Eickholt E. H.
Komiv A/S
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