| 摘要 |
1,243,597. Helical potentiometer. BUNKERRAMO CORP. 4 Aug., 1969 [24 Jan., 1969], No. 38912/69. Heading H1S. A helical potentiometer has a hollow rotor member 12 coaxial with a fixed output contact bar 60. A contact strip 80, supported on a carrier 78 which has projecting ribs embracing a helical resistance element 46, can move axially along the rotor member, engaging both the element 46 and the output contact bar 60. The housing is formed of a plastics material. |
