| 摘要 |
<p>1,236,028. Impact mills. SIMON-BARRON Ltd. 26 Nov., 1968 [29 Jan., 1968], No. 4413/ 68. Heading B2A. [Also in Division H2] A machine, e.g. an impact grinder 1, has heat sensitive elements 8 mounted adjacent the bearings 3 of the machine and heat-sensitive elements 6 associated with the windings of the driving motor, the elements being connected to a unit 7 for cutting off the supply to the motor when the bearings or the motor are overheated. Further heat-sensitive elements may be provided adjacent the bearings of the motor.</p> |
