| 摘要 |
829,393. Mowing machines. MAGUIRE, A.E. Feb. 24, 1958 [March 1, 1957], No. 5884/58. Class 6(3). In a mowing machine having a bladed rotor 10 rotating about a vertical axis, the blades 25 are pivoted on inclined pivot-pins 26 so as to be capable of swinging freely centrifugally during operation. The rotor is upwardly domed and has a circumferential flange 14 adjacent to which are welded downwardly-domed sheet-metal protuberances 17, holes being aligned in the rotor and in the protuberances to receive bearings 21 for the pivot-pins. Domed washers 23 and felt pads 22 prevent the ingress of dirt.
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