Earth working – With ground support vertically adjustable relative to frame – Translating motion
Patent
1978-07-29
1978-11-28
Paperner, L. J.
Earth working
With ground support vertically adjustable relative to frame
Translating motion
172272, E02F 381
Patent
active
041272030
ABSTRACT:
A system for connecting a boom to a tool of the type in which brackets secured to the tool define a pair of coaxial, axially-spaced bores, and the boom defines a pair of cylindrical coaxial bosses. In such a system, the invention features a stop associated with each of the bores and providing an alignment surface, typically defined by a cylinder coaxially with the bore and of radius not less than that of a boss. The stop surfaces face generally towards the center of gravity of the tool, each stop surface subtends an arc in the range of 120.degree. to 180.degree., and each stop is open on the side of the associated bore opposite the stop surface thereof.
REFERENCES:
patent: 3341040 (1967-09-01), Blair
patent: 3398472 (1968-08-01), Leijon
patent: 3556323 (1971-01-01), Heimmermann
patent: 3767075 (1973-10-01), Leverenz
patent: 3853232 (1974-12-01), Oke et al.
Paperner L. J.
Wain-Roy, Inc.
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