Safety enclosure for mining machines

Details Safety enclosure for mining machines Safety enclosure for mining machines

1976-09-16

1977-12-27

Goodman, Philip

Land vehicles: bodies and tops

Bodies

Variable capacity of body

175219, 180 77MC, 280748, 280756, 296102, 299 12, B62D 2706

Patent

active

040651673

ABSTRACT:
A safety enclosure for use with underground mining machinery for protecting the operator of the machinery from overhead and lateral falls and the like. The safety enclosure comprises a cage-like structure of generally rectangular cross section for receiving and surrounding the operator while operating the machine. A pair of longitudinal male slide members are vertically secured to the cage-like structure along one side thereof, the slide members being slidably mateable with a pair of cooperating female channel members vertically secured along one side of the mining machine. Shear pins are provided for adjustably maintaining, under normal operating conditions, the cage-like male slide members assembly disposed above the mine floor by a preselected distance and for releasing the assembly for sliding displacement to the floor of the mine in response to an overhead fall causing a predetermined force on the top of the enclosure.

REFERENCES:
patent: 3402941 (1968-09-01), Martinmaas
patent: 3713688 (1973-01-01), Monroe
patent: 3865197 (1975-02-01), McCormick
patent: 3937517 (1976-02-01), Donovan
patent: 4022026 (1977-05-01), Childress

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