A mineral mining pick and holder assembly.

摘要

The combination of a mineral mining pick and a pick holder. The pick (1) has a shank (4) by which it is received in a socket (6) of a pick holder (2). Extending within the socket (6) is a spigot (13) which mates with a coupling socket (14) in the shank (4) automatically as the shank is inserted into the pick holder. During insertion of the spigot (13) into the socket (14), a frusto conical head (26) on the spigot passes through a resilient ring (25) mounted in an annular recess (24) of the coupling socket so that abutment of a shoulder (27) on the head (26) against the ring (25) retains the pick in the holder.

The spigot (13) may be tubular to provide a watercoupl- ing from chamber (23) in the holder to passage (11) and ports (12) in the pick forflushing, cooling or dust suppression water supply. The resilient retaining ring (25) may provide a water seal between the spigot (13) and the socket (14).

In an alternative arrangementthe spigot can be carried by the shank (4) to engage in a coupling socket in the holder (2).