CLOCK No. 1

P.O. ENGINEERING DEPT.
ENGINEERING INSTRUCTIONS
MISCELLANEOUS
TIME
B 1121
Issue 1, Oct 1938

MECHANICAL CLOCKS
Clock No. 1

1. Description
Clock No. 1 supersedes Clock No. 13 and is an 8-day, seconds-indicating, spring driven, lever-movement timepiece with a 5-in, dial. The movement is housed in a circular polished nickel case, with side trunnions for mounting on Brackets, Clock, Nos. 1 and 2, or.3 (Drg. PIT 81).  It is suitable for small manual telephone exchanges.

2. Winding and regulating
A Key, Clock, No. 1 is supplied with each clock for the purpose of winding and regulating the hands. To perform these operations it may be necessary to remove the clock from the mounting brackets, if access to the winding and hands arbor is from the back.

Overall dia. .. .. 6 in.
Dia. of dial ... .. 5 in.
Depth (back to front) .. 4 in.

Last revised: May 21, 2003