Mechanical guns and projectors – Miscellaneous
Patent
1984-12-27
1987-11-10
Apley, Richard J.
Mechanical guns and projectors
Miscellaneous
124 6, 124 81, F41B 1500
Patent
active
047050144
ABSTRACT:
An improved apparatus for propelling balls such as softballs and baseballs with accurate and predetermined spins, speeds and placements, which includes a spinning wheel opposed by a guide having an inner diameter slightly larger than the diameter of the ball to be thrown. The guide positions the ball properly against the wheel and continues such until the ball is released from the wheel. The speed of the wheel is controlled by a constant speed motor which drives the wheel through use of a belt, a fixed pulley connected to the wheel and variable diameter pulley connected to the motor. The motor is controllably pivoted for movement toward and away from the wheel which changes the tension in the belt and causes the variable diameter pulley to change diameters and drive the wheel at the different controlled speeds.
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Apley Richard J.
Finch George W.
Welsh J.
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