Abstract: In a translucent play ball, an improvement of apparatus for illuminating the play ball utilizes batteries and a lamp. The apparatus includes three compressible helical springs and a translucent casing for encapsulating the batteries, lamp and springs. The springs are compressed within the casing in contact with one another. The lamp is secured to an end of the middle spring, which also encircles the batteries. The spring to the side away from the lamp holds the batteries in contact with the lamp and itself contacts the batteries. A series circuit is thus completed through the batteries to the springs and back to the lamp. In modified forms, the casing has removable and locking end caps and a switch for switching off the lamp by decompressing the springs.

Abstract: An improved portable golf practice device includes a base with a pivotably attached arm. A freely slidable distance indicator and a spring biased slidable yoke are mounted on the arm. The yoke is mounted for pushing the indicator away from the point at which the arm pivots on the base. A cord and ball are attached to the yoke. When the ball is struck, it pulls the yoke against the force of the spring which biases the yoke and causes the distance indicator to slide along the arm away from the pivot. A distance scale formed in the base indicates the distance the distance indicator travelled and thus indicates the distance the ball would travel if unattached. The device also includes an angle indicator member on the arm which cooperates with an angle scale on the base to indicate the direction of flight of the golf ball.