True Time. 



71 



TV part of the 30 teeth wheel on the escape wheel arbor ; si s2 s3 

 the contact springs ; A B G the spring blocks ; P P the pendulum ; 

 b b binding screws at the controlled clock ; M H magnets ; G the 

 hollow coil forming bob of pendulum ; G'Z' G'Z' the two cell galvanic 

 battery. 



