Material or article handling – Self-loading or unloading vehicles – Conveyor
Patent
1986-04-10
1988-11-01
Spar, Robert J.
Material or article handling
Self-loading or unloading vehicles
Conveyor
193 35C, 403258, B60P 310
Patent
active
047815159
ABSTRACT:
There is provided a pivotally mounted hull-engaging roller system for a roller trailer for facilitating loading and unloading a boat and assuring efficient support of a boat loaded thereon. The pivotal mounting permits the hull contacting elements or rollers to tilt inwardly without the need for any particular tilting capability. The hull-engaging rollers of the invention are supported on the trailer crossbars by an improved bracket having the capability of effectively supporting the crossbars for pivotal movement relative to the trailer side booms. The improved roller mounting structure disclosed herein accommodates a variety of various designed craft hulls.
REFERENCES:
patent: 2662236 (1953-12-01), Kester
patent: 4278388 (1981-07-01), Johnson
patent: 4530634 (1985-07-01), Johnson
patent: 4611948 (1986-09-01), Johnson
Millman Stuart J.
Spar Robert J.
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