Abstract This apparatus comprises a flexible hose adapted to receive solid and liquid constituents of the explosive. This hose is surrounded by a flexible tube which in turn is surrounded by a rigid tube that is made of a series of sections secured together. Compressed air is supplied into the spaces between the flexible tube and successive sections of the rigid tube successively to force the mixture of the solid and liquid constituents of the explosive down through the hose peristalically. The solid ingredient is supplied to the hose from a hopper through a measuring chamber and rigid tube; and the liquid ingredient is supplied from a separate measuring chamber which comprises a flexible cylinder inside a rigid housing. Opposite ends of the cylinder are closed alternately; and alternately the outside of the cylinder is put under suction and under pressure. On suction, the liquid component is sucked into the cylinder from a supply source. On pressure the liquid component is forced out of the cylinder into the hose through a nozzle which surrounds the tube that delivers the solid component into the hose. This nozzle directs the liquid against the inside wall of the hose to prevent the solid ingredient from sticking to the hose.
An apparatus for kneading doughy explosives composed of constituents in solid and in liquid state, said apparatus including a longish hose of resilient material disposed from an inlet end to a discharge end to be actuated by means adapted simultaneously with the kneading effect to bring about a peristaltic advance movement of the explosive, characterized in that connected to the inlet end of said hose is an annular nozzle which is in connection with a pressure fluid source and disposed to direct the liquid constituent against the inner wall of the hose around the solid constituent supplied through a central feed tube.
Claim 2
Independent Claim
102 words
An apparatus for kneading doughy explosives composed of constituents in solid and in liquid state, said apparatus including a longish hose of resilient material disposed from an inlet end to a discharge end to be actuated by means adapted simultaneously with the kneading effect to bring about a peristaltic advance movement of the explosive, characterized in that connected to the inlet end of said hose is an annular nozzle which is in connection with a pressure fluid source and disposed to direct the liquid constituent against the inner wall of the hose around the solid constituent supplied through a central feed tube.
Claim 3
Dependent Claim
53 words
The apparatus as claimed in claim 1, characterized in that the liquid pressure source is adapted to deliver liquid under substantially constant pressure simultaneously with the feeding down of batch of the solid constituent through the feed tube and in a quantity corresponding to the desired final liquid quantity in the doughy explosive.
Claim 4
Dependent Claim
77 words
The apparatus as claimed in claim 2, characterized in that the pressure liquid source consists of a closed cylinder having a flexible cylinder wall and a valve-controlled inlet opening and a valve-controlled discharge opening for liQuid, said cylinder being positioned inside a closed pressure chamber devised to be supplied with a pressure fluid for delivery of a quantity of liquid determined by the supplied pressure fluid through the discharge opening of the cylinder to the annular nozzle.
Claim 5
Dependent Claim
34 words
The apparatus as claimed in claim 3, characterized in that the pressure fluid is supplied to the pressure chamber from a cylinder with a piston, the length of the stroke of which is predeterminable.