| 摘要 |
<p>1506414 Variable capacitors PHILIPS ELECTRONIC &ASSOCIATED INDUSTRIES Ltd 17 Oct 1975 [22 Oct 1974] 42694/75 Heading H1M In manufacturing a stacked variable capacitor comprising rotor blades 37 interleaved with and rotatable in relation to stator blades 33, either the rotor blades or the stator blades or both are coated entirely with an adherent insulating coating prior to assembling the stack. The coating may be polyparaxylylene applied by vapour phase deposition of polymerized diparaxylylene on to a batch of elements maintained in relative movement in a rotating drum. On assembling the rotor blades on shaft 41, sufficient coating is rubbed off to provide adequate electrical connection.</p> |
