Spring type ball pitching apparatus

Details Spring type ball pitching apparatus Spring type ball pitching apparatus

1978-01-16

1981-05-26

Browne, William R.

Mechanical guns and projectors

Centrifugal

Mechanical

273 26D, 124 50, 124 41R, 221200, F41B 700

Patent

active

042691621

ABSTRACT:
A ball pitching machine having a spring powered pitching arm and having a dispensing mechanism with a de-jammer device for individually dispensing balls from a supply hopper and a ball loading device for automatically positioning a ball on the pitching arm for each cycle of the apparatus. A torsion adjusting mechanism is used to set the torsion of the coil spring to a prestressed first predetermined force value. The pitching arm applies an additional torsioning force to the coil spring resulting in a second greater predetermined stored force value in the coil spring. An adjustable link extends directly between and connects the coil spring to the pitching arm to maintain the amount of torsion in the coil spring at the first prestressed first determined force value.

REFERENCES:
patent: 2815743 (1957-12-01), Brunderman
patent: 3213843 (1965-10-01), Laney
patent: 3262439 (1966-07-01), Johns
patent: 3470859 (1969-10-01), Ponza
patent: 3511225 (1970-05-01), Yokoi
patent: 3601111 (1971-08-01), Embray

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