| 摘要 |
<p>A support member for the brushes of an electric motor comprises an annular member 39 embedded in which is an array 52 of conductors. Parts of the array are exposed to form the fixed contacts (54, 55, Fig. 12) of electric switches. Movable contacts 76, of the switches are carried by arms 74 extending from a ring shaped collar 73 mounted for rotation on a wall 57 upstanding from the annular member 39. <IMAGE></p> |
