338 / | HD | ELECTRICAL RESISTORS |
68 | DF | MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24} |
92 | .~ Resistance element adjustably short-circuited {5} | |
93 | DF | .~.~> Compressible spring type |
94 | DF | .~.~> Liquid contact |
95 | DF | .~.~> With intervening structure between element and short-circuiting means (e.g., taps) |
96 | DF | .~.~> Spring contact strip progressively pressed along element |
97 | DF | .~.~> Unitary movable contact electrically bridges resistance portions |