Titel
Electric master clock, 1900.
Caption
This invention patented in 1900 by Fischer of Zurich, Switzerland, enables time indications to be transmitted from a central master clock to distant indicating or ‘slave’ dials. The electrical circuit remains closed throughout, and every minute the armature of a simple dynamo, driven by the clock weight, is sharply rotated, sending a pulse of current to its subsidiary dials. Successive rotations are in alternate directions and so are the pulses of current. The system has been used to a considerable extent, both in the United Kingdom, under the trade name ‘Magneta’, and throughout Europe., 6997474
Aufnahmedatum
01.01.2009
Bildnachweis
Science & Society / FOTOFINDER.COM
Bildname
10239973
Bildgröße
2532px x 3504px, 21,40 cm x 29,70 cm (300 dpi)
Model Release
No Model Release available
Property Release
Not specified
Mehr Infos
Weniger Infos
Land
Switzerland
Bildanbieter
© Science & Society / FOTOFINDER.COM - Each publication includes royalties, copyright notice and voucher copy, please send to Fotofinder GmbH i.L. , Buelowstr. 27, 10873 Berlin, Germany. NO MODEL-RELEASE! For commercial usage please contact us: fulfillment@fotofinder.com, phone: +49 (0)30 25 79 28 90 or fax +49 (0)30 25 79 28 999. Payment to: Fotofinder GmbH, Deutsche Bank, IBAN: DE03 1007 0024 0041 4862 00, BIC: DEUTDEDBBER.
Fotofinder.com Bildnummer
6997474
/ BBC91326C81291FA
Stichworte
Stichworte
Age of Electricity (1870-1913)
,
Clocks
,
Electrically-Driven
,
Fischer
,
Magneta
,
Master & Slave
,
SCIENCE & TECHNOLOGY
,
Swiss
,
dynamos
,
horology
,
ow_science-society
,
pmscartandhistory
,
pmscinternational