With Mainspring (synchronous Motors With Power Reserve Subclass 559; Springs In General F16f) [g04b 1/10] Patents (Class 968/7)

Cross-Reference Art Collections

Having a form other than a helix (subclasses 9 and 10 take precedence) [g04b 1/10b] (Class 968/8)

With several mainsprings (installations with a mainspring and an auxiliary spring subclass 19; winding up several mainsprings simultaneously subclass 28) [g04b 1/12] (Class 968/9)

Mainsprings; bridles therefor (mainsprings with bridles subclass 14; alloys c22c; springs in general f16f; constructions for compensation of changes in the motive power of the mainspring subclass 18; construction of the hairspring subclass 111; arrangements facilitating the removal of the mainspring subclass 291) [g04b 1/14] (Class 968/10)

Composition and manufacture of the springs (see note attached to this subclass) (Class 968/11)

Barrels; arbors; barrel axles (arrangements facilitating the removal of the mainspring subclass 291) [g04b 1/16] (Class 968/12)

Spring cylinder with friction transmission to the gearing (especially for Roskopf clockworks; friction clutch between spring and spring cylinder subclass 15) [G04B 1/16B] (Class 968/13)

Constructions for connecting the ends of the mainsprings with the barrel or the arbor (mainsprings and bridles therefor subclass 10; clamping the hairspring on the regulator subclass 121; clamping the hairspring on the arbor subclass 135) [g04b 1/18] (Class 968/14)

Compensation of changes in the motive power of the mainspring (by mechanical shaping of the mainspring subclass 10; automatic regulation of the pendulum subclass 115; of the regulator subclass 211) [g04b 1/22] (Class 968/18)

With the aid of an interposed power accumulator (secondary spring) which is always tensioned (winding up several mainsprings or driving weights simultaneously subclass 28) [G04B 1/22B] (Class 968/19)

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