Mineral mining machines
A mineral mining machine incorporates a guideway defining runs for a cutter chain which carries cutter picks. The guideway is movable as a whole and is formed with runs for the chain. The runs of the guideway are of generally l-shaped cross section, although the invention is not so limited, and have relatively outer and relatively inner supporting guide surfaces for the cutter chain. The relatively inner guide surface is positioned to the rear of the drive member, E.G. A sprocket, for the chain, I.E. Behind the center line of the chain in the cutting direction. The guide surfaces are continuous around the whole of the guideway thus providing continuous support for the chain during the whole of its movement around the guideway.
- Assignee:
- Coal Industry (patents)Ltd (United Kingdom)
- Patent Number(s):
- US 4209199
- OSTI ID:
- 5782727
- Resource Relation:
- Patent Priority Date: Priority date 11 Nov 1977, United Kingdom of Great Britain and Northern Ireland (UK)
- Country of Publication:
- United States
- Language:
- English
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