Supply systems for mobile appliances, particularly mining machin

Details Supply systems for mobile appliances, particularly mining machin Supply systems for mobile appliances, particularly mining machin

1979-02-22

1981-01-20

Schacher, Richard A.

Electricity: transmission to vehicles

Conductors

Conduit

191 25, 191 48, 339 22T, B60M 134

Patent

active

042457262

ABSTRACT:
A duct section serves as part of a supply system for supplying electric power or a pressure medium to a mobile appliance and especially to a mining machine in a mine working where protection against explosion or fire is necessary. The duct section has a wall with a longitudinal slot therein and pick-up engages in the slot to collect the electric current or pressure medium. The slot is sealed with the aid of thin flexible sealing strips held flat against the inner and outer surfaces of the slotted wall. The pick-up is shaped to progressively deflect the strips away from the slotted wall to permit the passage of the pick-up and maintains the interior sealing with the aid of further seals slidable engaging with the slotted wall over the region where the strips are deflected.

REFERENCES:
patent: 448838 (1891-03-01), Pocock

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