Putter

DETAILED DESCRIPTION I claim: 1.
A putter comprising a shaft and a head including a ball engaging portion having a chamber, a fly wheel within said chamber adjacent the outer end of said head with its axis disposed lengthwise thereof, the length of said shaft and the angle between said shaft and said axis being such as to enable the ball to be engaged by the ball engaging portion of the head when the shaft is held by the user while standing in putting position, and a battery powered drive for said fly wheel within said putter and connected to said fly wheel, said drive operable to effect the rotation of said fly wheel at a rate such that a gyroscopic force is exerted on the outer end of the head adequate to stabilize the head against accidental turning during a putt from a position at right angles to the wanted path for the ball, said drive including a battery source, a low voltage, high speed motor, and a circuit between said motor and said source and including a switch.
2.
The putter of claim 1 in which the switch is a mercury switch and is positioned to maintain the circuit open except when the putter is held in a putting position.
3.
The putter of claim 1 in which the shaft is tubular, the battery source and the motor are also within the chamber and one lead of the circuit extends within the shaft to the free end thereof, and the switch is adjacent said end.
4.
The putter of claim 3 in which the switch is of a manually operated type and includes an actuator exposed externally of said shaft end.
5.
The putter of claim 3 in which the switch is a mercury switch positioned to be open except when the putter is held in a putting position.
6.
The putter of claim 3 in which the chamber extends from end-to-end of the head, detachable means closing the rear end thereof, and the chamber is dimensioned to receive weights.
7.
The putter of claim 3 in which the head is symmetrical in lengthwise cross section, the chamber extends centrally from end-to-end thereof, and the diameter of the head is such that in making a putt, an overspin is imparted to the ball