Circular of the Bureau of Standards. No. 51. Measurement of Time and Tests of Timepieces

Catalogue no: 1485
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): S.W.Stratton
Total pages: 39 Illustrations: 1 Language(s): English Publication date: December 1st, 1914
Editor: Publisher: Dept. of Commerce, U.S.A.
Dimensions: 255mm x 180mm Condition: Good
Related titles: Related library records:

Pamphlet giving details of the tests for precision watches in the U.S.A.  Contents as follows;

The Methods of Test of Watches;  The Use and Value of Tests of Watches;  Definitions of Correction to a Watch, Rate, Etc.;  By Whom Watches may be Submitted for Test;  Sizes of Watch Movements;  The Use and Care of a Watch;  The Comparisons of a Watch with some Reliable Source of Standard Time;  Standard Time and the Standard Time Sections;  Regulations Governing the Testing of Watches;  Shipping directions, remittances, etc.;  Schedule of fees.

Illustration shows the precision mean time clock (Riefler type) used as a standard in the testing of timepieces at the Bureau of Standards.

Front cover signed in ink by Paul Ditisheim and stamped on the inside front cover, 20. Avr. 1915.

Room location: Library Extension Cabinet: F Shelf: 5
Search terms: Chronometers, Precision Watches
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