Mineral winning ploughs

Details Mineral winning ploughs Mineral winning ploughs

1976-01-02

1977-07-12

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Cutter attached to endless chain or cable

E21C 2735

Patent

active

040350258

ABSTRACT:
A coal plough is composed of two spaced-apart interconnected bodies which engage on a guide and which are moved along the guide to strip coal from a coal face. Each body is provided with various sets of cutter bits located at both its end regions and a floor cutter adjustable to control the height of cutting. The cutter bits at the inner face end regions of the bodies project further outwards towards the coal face than the other bits. During operation when the bodies move in one direction along the guide, cutter bits at the forward outer end region of the leading body cut into the coal face and the following-up cutter bits at the forward inner end region of the lagging body also cut into the face. The remaining cutter bits do not engage on the coal face.
In this way the cutting operation is performed by both bodies and similarly both bodies can assist into transferring the coal detached from the face over the guide and into a scraper-chain conveyor.

REFERENCES:
patent: 3785704 (1974-01-01), Ostrop et al.
patent: 3877752 (1975-04-01), Hauschopp

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