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Carat symbol “^” designates a superscript.
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HISTORY
OF
THE TRANSFORMER.
BY
F. UPPENBORN,
EDITOR OF THE “CENTRALBLATT FÜR ELEKTROTECHNIK,”
AND CHIEF OF THE ELECTRO-TECHNICAL TESTING STATION IN MUNICH.
_TRANSLATED FROM THE GERMAN._
[Illustration]
E. & F. N. SPON, 125, STRAND, LONDON.
NEW YORK: 12, CORTLANDT STREET.
1889.
PREFACE.
As of late the employment of alternating current transformers has
largely increased and become of great importance, indeed as they are
called upon to play a striking part in electric lighting from central
stations, the author has thought a short notice of the development of
this invention would possess some interest. This task appeared to be so
much the more pressing, as many distorted versions of the invention and
its priority have found place in the technical journals.
The author has not let the reading of the large number of patents
discourage him, and hopes that the following plain and concise
statement of these researches will contribute towards the forming of a
correct judgment as to the services rendered by the several inventors.