5556. Jameson, W., and Twist, W. March 16. No Patent granted (Sealing fee not paid). Picks and pickaxes for miners' use have detachable points and also caps to cover over the sockets when empty. The pick head A has sockets A1 into a which are screwed points C. Collars D, of finer thread, lock the points to the head. The points are provided with holes c' so that they may be threaded over a wire ring and readily carried. Caps E secured by a hinge e and padlock e1 keep out dirt and prevent the pick from being used when the points have been removed.
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