Conveyors: power-driven – Conveyor section – Endless conveyor
Patent
1984-10-19
1986-03-11
Valenza, Joseph E.
Conveyors: power-driven
Conveyor section
Endless conveyor
198833, 192 0098, 192 488, 318102, B65G 4300
Patent
active
045749434
ABSTRACT:
A control system for a booster type belt conveyor having one or more booster belts spaced at intervals along a conveyor belt with the upper, driving run of each booster belt frictionally engaging the underside of the conveyor belt carrying run. Each belt has a driving pulley connected to a driving unit including one or more electric motors, engageable and disengageable fluid couplings, and a gear box. The conveyor is for heavy duty service, in long lengths of several miles. There is an electrical control assembly for each drum or pulley driving unit. These automatically start the motors in sequence while the couplings are disengaged, each being started in response to a signal from a previously started motor that it has reached running speed. An electrical loop interconnects all the control assemblies and contains relays which, when the loop is energized to actuate the relays, cause the fluid couplings to engage. The electrical loop is conditioned responsive to a running condition signal from the last-started motor, and is then energizable by a switch to engage all the fluid couplings and cause the motors to rotate the drive pulleys.
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Holmes Jonathan D.
Service Machine Company
Valenza Joseph E.
LandOfFree
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