Hydraulic and earth engineering – Miscellaneous
Patent
1978-08-30
1980-08-05
Corbin, David H.
Hydraulic and earth engineering
Miscellaneous
405259, E21C 1100
Patent
active
042159539
ABSTRACT:
A resin cartridge injection device for use in roof bolting apparatus in the mining industry includes a turret carrying both the hole drilling carriage and the bolt inserting carriage as well as a feed line for introducing the resin cartridge or cartridges into the drilled hole, before bolt insertion, by way of a flexible hose from a remote control station. The cartridges are conveyed from the control station into the hole pneumatically. Indexing of the turret will select either the drilling carriage, the cartridge inserter or the bolt insertion carriage into an operating position, as desired.
REFERENCES:
patent: 2887685 (1959-05-01), Cast
patent: 3807655 (1974-04-01), Bull
Bohner Hal J.
Corbin David H.
Envirotech Corporation
Krebs Robert E.
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