| 摘要 |
<p>An agricultural irrigation machine of the hose-drum type in which a hose through which water is passed leads from a drum on which the hose is wound to an irrigation trolley or sledge carrying a nozzle or water-gun. The hose-drum is mounted to rotate about a horizontal axis on a turret which can be turned about a vertical axis, whereby the hose-drum can be oriented in the direction of the unwound part of the hose. The hose-drum is driven in the hose-rewinding sense while water is flowing through the hose to the irrigation trolley or sledge. The hose-drum rests in a cradle of rollers and is driven in the hose-rewinding sense by a sprocket wheel engaging a captive chain wrapped around a peripheral channel on a flange of the drum.</p> |
