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US2352192A
|
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Closure
|
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US2334617A
|
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Oil burner extension for furnaces
|
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US2260321A
|
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Mounting for supporting rotary drums
|
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US2249831A
|
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Ring gear mounting for rotary driers, kilns, and similar equipment
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US2198820A
|
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Tire mounting for rotary driers, kilns, and similar equipment
|
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|
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Separator
|
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Liquid level control mechanism
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Baffle packing for heat exchangers
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|
GB353248A
|
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Improvement in evaporators
|
|
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|
|
Casing slip
|
|
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|
|
Casing slip
|
|
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|
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Mechanism for controlling pressure and feed of tools of rotary well drilling rigs
|
|
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|
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Lifting device for pipe slips
|
|
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|
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Flexible pipe slip
|
|
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Motion-reversing mechanism
|
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Door for retort chambers
|
|
US1711231A
|
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Method of making spiral auger stems, bits, and substitutes
|
|
CA400878A
|
|
Tire mounting for rotary dryers or kilns
|
|
CA321933A
|
|
Evaporator
|
|
CA319524A
|
|
Retort chamber door
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