Ball-throwing device with ball throwing heads and ball conveying

Mechanical guns and projectors – Projectile impelled by coacting wheels

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Details

124 41R, 124 51A, 124 81, 273 30, A63B 6900, F41B 1500

Patent

active

045599181

ABSTRACT:
Balls such as table tennis balls or tennis balls are continuously fed to two pairs of adjacent flanged rollers of a ball-throwing head by a blower and two transfer ducts. Balls hit by the player are collected by a net and a trough, then fed back to the head. The rollers have separately variable speeds of rotation, a gap being provided between each pair of rollers and adapted to the diameter of the balls. The balls are directed alternately into each transfer duct, the opening of which is located opposite to each gap.

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