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Priority to ES1970162992UpriorityCriticalpatent/ES162992Y/en
Publication of ES162992UpublicationCriticalpatent/ES162992U/en
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Publication of ES162992YpublicationCriticalpatent/ES162992Y/en
A ball throwing apparatus for tennis and the like, constituted by a frame with wheels, from which the main chassis protrudes with a vertical column which, in its upper part, supports the guide channel for descending the balls which presents in its lower part a fixed outlet duct that faces the fallen balls to the extreme blade of the mobile launcher arm. In the middle area of the chassis there is a motor-reducer coupled to a variator that, by the appropriate mechanism, causes the rotation of the throwing lever that constitutes the long arm of an angular lever, whose smaller arm is linked to a tension group constituted by a spring of opposite end joined to a rotating tensioning lever, whose position is adjustable acting on its opposite end and nailing it in one of the fittings of the positioner of the tensioning lever. (Machine-translation by Google Translate, not legally binding)
ES1970162992U1970-11-061970-11-06
A BALL THROWING DEVICE FOR TENNIS AND THE LIKE.
ExpiredES162992Y
(en)
Device for cleaning the drill of a reversible nozzle available in an air spray apparatus. (Machine-translation by Google Translate, not legally binding)