| 摘要 |
<p>The device employs a delivery duct (23) with transversal disposition on a pair of parallel horizontal guides (5, 6) delimiting the playground; the delivery duct is pressure fed by means of nozzles (24) properly intervalled and it sprinkles all the underlying ground with a uniformly divided effect and progressively, progressing alternatively with a continuous movement in both senses. The duct is supported at the ends by connections, with adjustable turnbuckles (29) and anchoring carriages, by a couple of dragging chains (3, 4) imposed on the above guides. The device start, from a central control station, automatically activates the pump (20) delivering the liquid into the duct and contemporarily lets it progress through the effect of the motor reducer (17, 18) couple which starts the two dragging chains in synchronism by means of pinions.</p> |
