Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent
1976-06-08
1977-11-22
Eickholt, E. H.
Excavating
Snow or ice removing or grooming by portable device
Railway clearer
37DIG3, 83749, 83658, 83928, 214DIG5, B26D 700, E02F 376
Patent
active
040589153
ABSTRACT:
The device comprises a shear adapted to be mounted to the boom of a backhoe or like machinery with relatively movable members and be actuated by a powered, movable member of the backhoe. The shear comprises a generally U-shaped support member adapted to be disposed about the top of the backhoe boom. The shear also includes a pivotally mounted cutter head adapted to engage an anvil section attached to the support member to shear an item such as a metal member inserted therebetween. A cutter head is actuated by the backhoe movable member and is pivotally returned to a raised position after a shearing operation by a biasing means connected to the cutter head. The invention also includes a locking means to maintain the cutter head in a closed position when a shearing operation is not desired; a stripping member disposed adjacent the anvil section to assist in restraining items to be sheared during a shearing operation; and a guide member for preventing excessive deflection of the cutter head during a shearing operation.
REFERENCES:
patent: 1438888 (1922-12-01), Barton
patent: 1777032 (1930-09-01), Bull
patent: 2044624 (1936-06-01), Morgan
patent: 2144540 (1939-01-01), Lindgren
patent: 2281877 (1942-05-01), Green
patent: 2332561 (1943-10-01), Drott
patent: 3195387 (1965-07-01), Telfer
patent: 3264924 (1966-08-01), Yaron
patent: 3275172 (1966-09-01), Smith
patent: 3743358 (1973-07-01), Guest
patent: 3968714 (1976-07-01), Kuchyt
Eickholt E. H.
Wittwer Construction Company
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