Patent ID: 6390189
Filing Date: 2002-05-21
Classification: E21D

Abstract:
A feed apparatus for feeding capsular cartridges into a drilled hole, the apparatus being intended to be arranged in conjunction with a rock drill apparatus and comprising:a rotatable cylindrical cartridge magazine having a plurality of charge tubes in the form of tubular spaces arranged around the magazine, a cartridge to be fed being insertable in the charge tubes means for feeding pressurized air into a rear end of at least one of the charge tubes, when the at least one of the charge tubes is indexed to a feed position, so as to convey a cartridge loaded into the at least one of the charge tubes to the drilled hole; a rotating apparatus arranged to turn the magazine about a longitudinal axis of the magazine to a position so that the at least one tubular space is in the feed position; and seals for sealing a front end and the rear end of the at least one of the charge tubes indexed to the feed position.