Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1988-05-03
1989-08-08
Spar, Robert J.
Material or article handling
Vertically swinging load support
Shovel or fork type
294 61, 414703, 414917, 414920, 414 245, 414607, B66C 110
Patent
active
048548090
ABSTRACT:
A hay bale elevator apparatus is set forth wherein a forward rectangular framework has orthogonally projecting exteriorly of a lower frame member thereof a plurality of cradling rods for accepting a hay bale thereon wherein a rear rectangular framework of equal dimensional configuration to said forward framework is pivotally secured to said forward framework by four parallel links pivotally secured at each of their ends to the respective forward and rear framework. A lower frame member of the rear framework has secured a plurality of pivot points integrally thereto with a single pivot point oriented medially of an upper frame member of said rear framework for attachment to a three-point hitch of a farm tractor. A hydraulic extensible and retractable cylinder is secured to the lower frame member of said rear framework with a telescoping piston directed outwardly from said cylinder and secured rearwardly of an upper member of said forward framework for lifting said forward framework relative to said rear framework and the associated rods to elevate an associated hay bale cradled on said rods from a first position wherein said rods are generally aligned with lower pivot links to a second position wherein said rods are at an obtuse angle to said lower pivot links.
REFERENCES:
patent: 2517582 (1950-08-01), Lull
patent: 2668631 (1954-02-01), Reese
patent: 2690849 (1954-10-01), Andersen
patent: 3045845 (1962-07-01), Hackett
patent: 3700123 (1972-10-01), Corley, Jr.
patent: 3966064 (1976-06-01), Felburn
patent: 4325666 (1982-04-01), Chain et al.
Gilden Leon
Spar Robert J.
Underwood Donald W.
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