| Notes |
Final adjustment of working parts, the electric or motor pendulum, setting out of the dial, the backboard, case & backboard separated, the pendulum and its fittings (general arrangement), casting the bob, an alternative bob, pendulum suspension bracket, anti-sparking lamp resistance, ways of making the pendulum bob, details of construction, fittings at bottom of pendulum rod, the armature, contact maker & other componentsthe regulating nut, the trailing nib and its support, the swinging nib, assembling parts of the pendulum, the suspension cock or bracket, the contact board, details of suspension cock or bracket, an alternative contact board |