Ball throwing machine

Details Ball throwing machine Ball throwing machine

1986-04-25

1987-12-15

Pinkham, Richard C.

Mechanical guns and projectors

Projectile impelled by coacting wheels

273 26D, F41B 1500

Patent

active

047125349

ABSTRACT:
A ball throwing machine comprising a first pair of counter-rotating wheels whose axes are parallel to each other, and a pair of second counter-rotating wheels which are disposed forwardly adjacent the first rotary wheels and whose axes are parallel to each other and substantially at right angles as seen in front view to the axes of the first rotary wheels. A ball is nipped between the outer peripheral surfaces of the first rotary wheels and accelerated, whereby the ball is propelled forward. Then, this propelled ball is nipped between the outer peripheral surfaces of the second rotary wheels and further accelerated and thereby thrown forward.

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patent: 3777732 (1973-12-01), Holloway et al.
patent: 3794011 (1974-02-01), Newgarden, Jr.
patent: 4352348 (1982-10-01), Griffith

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