QUIK PIK

PROJECTILE SHAPED BITS USED IN THE MINING OF COAL AND OTHER MINERALS, AND LUGS AND HOLDERS TO RECEIVE SAID BITS, THE SAID BITS AND THE SAID LUGS AND HOLDERS BEING ARRANGED SO THAT A SAID BIT MAY BE FIRMLY HELD IN A SAID LUG AND HOLDER IN SUCH MANNER AS TO PERMIT ROTATION OF SAID BIT WITHIN SAID LUG AND HOLDER, THE ARRANGEMENT BEING SUCH AS TO PERMIT A SAID BIT TO BE EASILY REMOVED FROM A SAID LUG AND HOLDER WHEN THE USEFUL LIFE OF SAID BIT IS REALIZED, THE SAID LUGS BEING ADAPTED TO BE AFFIXED TO VARIOUS KINDS OF MACHINERY USED IN THE MINING OF COAL AND OTHER MINERALS