초록 ▼

An end deflector for an abrasive water jet slot cutter is provided. The end deflector includes two wear resistant plates which direct portions of the water jet upwardly and downwardly. Preferably, the abrasive water jet slot cutter includes a source of high pressure water and a high pressure water o

An end deflector for an abrasive water jet slot cutter is provided. The end deflector includes two wear resistant plates which direct portions of the water jet upwardly and downwardly. Preferably, the abrasive water jet slot cutter includes a source of high pressure water and a high pressure water outlet from which a stream of water is expelled. A venturi device is provided adjacent the water outlet for creating a vacuum. A feed device feeds an abrasive particular material to the venturi device so that the abrasive material is entrained in the stream of water. Thereafter, the stream of water is collimated in a tube which produces a cylindrical water jet which is then deflected before it impinges on the rock to mine the rock. The abrasive material is preferably sand and the tube including the deflector is easily replaceable.

대표청구항 ▼

A deflector for deflecting a cylindrical jet of abrasive fluid which jet is used to cut into hard rock, the deflector comprising: an elongate collimating tube which conducts the jet to the rock to be cut, said tube having a central axis and an outlet from which the jet issues; a first and a second w

A deflector for deflecting a cylindrical jet of abrasive fluid which jet is used to cut into hard rock, the deflector comprising: an elongate collimating tube which conducts the jet to the rock to be cut, said tube having a central axis and an outlet from which the jet issues; a first and a second wear resistant plate each plate having a planar deflecting surface which is inclined toward a plane containing the central axis, the plates being angles towards the central axis plane in a downstream direction, and approaching said central axis plane from opposite sides thereof; and a means for mounting said plates on and at the outlet of said tube such that a portion of the jet is a deflectible cutting in a down stream and slight sidewards direction and another portion of the jet is deflected for cutting in a downstream and slight sidewards direction which last-mentioned sidewards direction to form jet portions which diverge from opposite sides of said central axis plane is opposite to the first-mentioned sidewards direction.