Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent
1981-09-03
1983-07-19
Eickholt, E. H.
Excavating
Snow or ice removing or grooming by portable device
Railway clearer
37126AA, 37126AD, 37DIG4, 371175, E02F 500
Patent
active
043936083
ABSTRACT:
Earth moving and land forming equipment and specifically that which can be used as a scraper and transporter or as a grader, the equipment having an open rectangular frame having a forward and rearward section pivotally connected together with a scraper blade at the forward end of the rearward section adjacent the pivot. The equipment has at its forward end means for connection to the draw bar of a tractor or the like and at its rearward end road wheels. The height of the scraper blade can be adjusted by relative rotation of the frame sections about the pivot and the equipment is also provided with an apron which can be moved from a position away from the scraper blade to a position where it is adjacent the blade and thus restricts movement of earth from a container behind the blade; ripper tynes which can be moved from an operative to an in-operative position and means associated with the land wheels whereby the transverse angle of the frame can be varied.
REFERENCES:
patent: 2103588 (1937-12-01), LeBleu
patent: 2136203 (1938-11-01), Adams
patent: 2216235 (1940-10-01), French
patent: 2227450 (1941-01-01), Gurries
patent: 2380021 (1945-07-01), Brown et al.
patent: 2414933 (1947-01-01), Daniels
patent: 2528741 (1950-11-01), Clark
patent: 2984026 (1961-05-01), Thompson et al.
patent: 3962804 (1976-06-01), Hyler
patent: 4015348 (1977-04-01), Gee et al.
patent: 4023285 (1977-05-01), Hancock et al.
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