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GB724292A
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Improvements relating to stowing in mine operations
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US2687804A
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Process and apparatus for the specific gravity classification of bulk substances utilizing finely granulated separating media
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GB693418A
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Apparatus for removing dust from granular material
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US2698086A
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Arrangement for removing dust from granular material
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GB673340A
|
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Improvements relating to stowing in mining operations
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GB683547A
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A new or improved method and apparatus for filtering solid material from a liquid
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GB667128A
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Improvements relating to the separation of solid materials of different specific gravities
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US2564515A
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Magnetic separator for obtaining magnetic particles from liquids
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GB653799A
|
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Improvements in liquid supply reservoirs, particularly for unstable heavy liquids used in separating plants
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GB682234A
|
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Process and apparatus for the sink and float separation of solid materials, using a heavy liquid
|
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US2517743A
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Supply reservoir for heavy liquids
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US2612269A
|
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Apparatus for the specific gravity classification of bulk substances
|
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US2612267A
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Process and apparatus for preparatory dressing of coal, minerals, and other solids, using a heavy liquid
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GB620255A
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An improved method and apparatus for winning and loading coal
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GB621824A
|
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Improvements relating to stowing in mining operations
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GB616682A
|
|
An improved method and apparatus for getting and loading coal and other minerals
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GB616929A
|
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Improvements in mine cars
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GB627860A
|
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Improvements relating to the gravity separation of solid materials
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GB616928A
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Improvements in pit props
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