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US 5,293,986 AGranted
Materials handling apparatus
AssigneeGreystones Enterprises Limited
InventorsDigby H. Mouritzen, Kenneth H. Mouritzen, Glenn L. Mouritzen
Life of this patent
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AssigneeGreystones Enterprises Limited
InventorsDigby H. Mouritzen, Kenneth H. Mouritzen, Glenn L. Mouritzen
Estimating the term…
A conveyor system comprises a series of mobile conveyors arranged end-to-end, each mobile conveyor including an inclined belt, the material being conveyed being lifted by the belt of each conveyor in turn and discharged over the upper end of the belt onto the lower end of the belt of the next conveyor. The belts are driven by electric motors. A downstream conveyor of the series constitutes a master conveyor which is connected to a source of electrical power. Each upstream conveyor in the series is a slave conveyor, the first slave conveyor receiving power from the master conveyor and each subsequent slave conveyor receiving power from the slave conveyor(s) upstream thereof. The slave conveyors receive power at timed intervals so that the conveyor system starts in sequence from the downstream master conveyor. Safety means are provided for switching-off all the conveyors that are upstream of the conveyor that is disabled in an emergency.
A conveyor system including first and second conveyors, each conveyor including a conveyor belt and an electric motor for driving the belt, said first conveyor having a power inlet and a power outlet, said power inlet being for connection to a power supply, power connecting means for connecting said motor of said first conveyor and said power outlet of the first conveyor to said power inlet of the first conveyor, said first conveyor further comprising a timer which commences a timing sequence when power is supplied to said power inlet of said first conveyor, said power connecting means being closed at the end of said timing sequence to supply power to said motor of said first conveyor and to said power outlet of said first conveyor, the second conveyor having a motor, a power inlet and a power outlet, the power inlet of the second conveyor being connected to the power outlet of the first conveyor whereby power reaches the power inlet of the second conveyor through the power outlet of the first conveyor after a delay the period of which is determined by said timer, and said second conveyor further comprising a timer which commences a further timing sequence when power is supplied to said power inlet of said second conveyor from the power outlet of the first conveyor, and power connecting means which closes at the end of said further timing sequence to connect said motor of said second conveyor and said power outlet of said second conveyor to the power inlet of the second conveyor.
A conveyor system including a first conveyor and a plurality of second conveyors, each conveyor including a conveyor belt and an electric motor for driving the belt, said first conveyor having a power inlet for connecting said motor of said first conveyor to a power supply and also having a power outlet, each second conveyor having a power inlet and a power outlet, said power inlet of the first of said second conveyors in the system being connected to said power outlet of said first conveyor and the power inlets and outlets of said second conveyors being connected to one another so that power is supplied to all said second conveyors through said first conveyor, each of said conveyors having a first power connecting means between the power inlet thereof and the motor thereof and a second power connecting means between the power inlet thereof and the power outlet thereof, and means for disabling said first power connecting means independently of said second power connecting means whereby any conveyor can be stopped without interrupting power supply to the other conveyors of the system.
Dependencies are inferred from the claim text.