(57) The novel system discloses both a batch operation and a continuous operation for
supplying pressured liquid and a pressured slurry to an abrasive-jet cutting nozzle
(22). In the batch operation, a single vessel (24) for receiving and pressuring slurry
is provided and this vessel (24) goes off line, to be recharged with slurry, when
it has disgorged its contents to the nozzle (22). In the continuous operation, a pair
of such vessels (24, 24a) are provided, and one supplies the nozzle (22) with slurry
while the other, having been emptied, is recharged with slurry; valves (32a, 40a)
switch therebetween, to put a re-charged vessel on line, and an emptied one re-charging,
to maintain a continuous slurry input for the nozzle.
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