作者: Albert C. Hartland
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摘要: A practice tennis court for practicing serving the balls consists of complete forward part a back to net and only service area beyond net. Behind is an end or other backstop stop without rebounding. At behind user, there continuous rake extending across sweeping used where are swept into trough from side discharge spent collection point through center outlet discharging ball projecting machine. As needed, moved sweep portion under removal. An alternate embodiment uses same system on full size with projector return. The driven by self contained motor which reverses returns starting after trough.