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US4153232A
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Apparatus for actuating inner and outer forms of a concrete pipe forming mold
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US2727734A
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Method of and apparatus for cooling concrete aggregates
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US2645533A
|
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Sheave assembly
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GB718411A
|
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Improved skip bucket
|
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GB718463A
|
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Improved skip bucket
|
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US2541261A
|
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Bail construction
|
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US2679322A
|
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Elevating charger
|
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US2812970A
|
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Gate operating mechanism for a concrete bucket
|
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GB642678A
|
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Fluid pressure operated reversing valve applicable, for example, to air rams
|
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GB633572A
|
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Mixing plant
|
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GB634592A
|
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Mixing plant
|
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GB654366A
|
|
Portable material handling apparatus
|
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GB637535A
|
|
Mixing apparatus
|
|
GB646032A
|
|
Apparatus for batch weighing
|
|
GB670566A
|
|
Compensating weighing device
|
|
US2557358A
|
|
Concrete mixing plant
|
|
US2559307A
|
|
Batcher control mechanism
|
|
US2559308A
|
|
Compensating weighing device
|
|
US2344446A
|
|
Apparatus for depositing material under water
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US2356255A
|
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Clamshell bucket
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