| 摘要 |
<p>The device is suspended from an overhead cantilever, extended sideways from the tractor. The tractor also carries grape-crushing and destalking machines and can two a trailer-mounted tank to collect must. The machine is suspended straddle fashion, to travel along a row espalier vines. The while of each vine is shaken by powered, reciprocating, hinged beater rods. Controls are provided for movement, (a) vertically up and down; (b) sideways to-and-fro; (c) of the vertical axis of the device about a horizontal axis parallel to the path of the tractor; and (d) of the vertical axis about an offset vertical axis. The beater system delivers an improved yield of shaker systems relying on vibration transmission via the vine support wires.</p> |
