12-pole synchronous electric clock

From Object Wiki

Synchronous electric clock
Manufacturer	(unknown)
Production years	20th century
Production location	UK

An early (1931) example of a British synchronous clock which is not self-starting.

[edit] How it works

It is driven by a 12-pole synchronous motor, the rotor of which makes 250 revolutions per minute when connected to a 5-cycyle AC supply. A simple hand-starting device is provided.

[edit] Memories

Do you remember stories about clocks? Add your memories.

[edit] In the Science Museum's Records

Inv. No: 1931-659