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Sangamo

Sangamo Weston Limited
British Sangamo Company Limited
Cambridge Arterial Road,
Enfield
Middlesex


The firm are exhibiting various Sangamo Time Switches and apparatus for street lighting control. Among the Time Switches the most important is the Sangamo Type S.S. Time Switch, a small synchronous switch particularly suitable for street lighting control. Other exhibits include various Sangamo street lighting psot boxes and a range of Illumination Meters from Weston. - Public Lighting #10, 1938 and APLE Conference Programme 1938


The type SSC (SS in the adverts) Solar Dial synchronous switch is described. The main features of the switch are the Solar Dial which settings can be made up to three-quarters of an hour either side of sunrise or sunset, the Day Omitting Device to cut out the whole sequence of operations on any day or days of the week, and the External Manual Operation by means of which the switch may be externally operating by hand without disturbing the sequence of operations. Solar Dials are supplied for four different latitude ranges: 50° 52° 54° and 56°. - APLE Conference Programme 1939


Several switch types are available for street lighting applications and all use the Type G Synchronous Motor. The "S" range is outlined but full details of the various options of the "SS" range are described. - APLE Conference Programme 1945


References:
APLE Conference Programme Bournemouth 1938
APLE Conference Programme Glasgow 1939
APLE Conference Programme Glasgow 1945


External Links:
Grace's Guide