Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1983-06-13
1985-02-05
Paperner, Leslie J.
Material or article handling
Vertically swinging load support
Shovel or fork type
414624, 414626, 414739, 294 70, 294115, 37183R, 37188, 37DIG6, E02F 344, E02F 381
Patent
active
044976089
ABSTRACT:
A digger for digging out substantially vertically-sided holes e.g. for gravestone monument foundations, is in the form of an attachment adapted to be connected on the dipper stick of a backhoe machine. The attachment has a downwardly-depending digger frame pivoted at its upper end to an attachment frame which is connected to the free end of the dipper stick. A vertically extending operating shaft extends upwardly relative to the digger frame and is connected through a pair of lower linkages to the sections of a clam shell bucket mounted on the lower end of the digger frame. The upper end of the operating shaft connects through a connecting link and a rocking lever to the piston of the dipper stick piston and cylinder arrangement.
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Francis Mark S.
Sheppard Roy J. P.
Thornhill Howard S.
Kim Lyle
Paperner Leslie J.
The Trustees of The Toronto General Burying Grounds
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