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Conveyor drives
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Patent number 4,175,649
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Issue date Nov 27, 1979
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Coal Industry (Patents) Limited
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Harry Monks
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Auxiliary drive mechanism
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Patent number 4,160,391
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Issue date Jul 10, 1979
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Coal Industry (Patents) Limited
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Harry Monks
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Control means for drive equipment
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Patent number 4,155,436
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Issue date May 22, 1979
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Coal Industry (Patents) Limited
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John J. Wilkinson
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Drive mechanism
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Patent number 4,125,178
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Issue date Nov 14, 1978
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Coal Industry (Patents) Limited
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Harry Monks
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL