Conveyors: power-driven – Conveyor having impinging fluid to feed – shift or discharge... – Having cleaning means
Patent
1976-12-06
1981-03-24
Valenza, Joseph E.
Conveyors: power-driven
Conveyor having impinging fluid to feed, shift or discharge...
Having cleaning means
152566, B65G 4500
Patent
active
042575176
ABSTRACT:
A scraper bar for use with conveyor belting and the like to clean such belting of material adhering to its surface. The scraper bar consists of a layer of hard abrasion-resistant pellets embedded in an elastomer to form an elastomer/pellet matrix. An additional layer of elastomer is cast to the matrixed layer to provide a surface for attaching the scraper to its support when in service. Embedded in the layer of unmatrixed elastomer is an insert of particle board, chipboard, plywood or fibreglass reinforced plastic sheeting. The insert prevents bowing of the scraper bar due to differential shrinkage between the layer of matrixed elastomer and pellets and the supporting layer of elastomer.
REFERENCES:
patent: 1684477 (1928-09-01), Demand
patent: 2139054 (1938-12-01), Wilson
patent: 2759606 (1956-08-01), Nippert
patent: 3560171 (1971-02-01), Ornstein et al.
patent: 3973845 (1976-08-01), Lindblad et al.
Alderson Peter J.
MacPherson Edwin J.
Skinner Douglas A.
Bazerman Steven H.
Holler Norbert P.
Millet Marcus J.
Uniroyal Ltd.
Valenza Joseph E.
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