GB604526A - Improvements in apparatus for testing the accuracy of frequency of energy pulses with respect to a time standard - Google Patents

Improvements in apparatus for testing the accuracy of frequency of energy pulses with respect to a time standard

Info

Publication number
GB604526A
GB604526A GB26217/45A GB2621745A GB604526A GB 604526 A GB604526 A GB 604526A GB 26217/45 A GB26217/45 A GB 26217/45A GB 2621745 A GB2621745 A GB 2621745A GB 604526 A GB604526 A GB 604526A
Authority
GB
United Kingdom
Prior art keywords
testing
accuracy
frequency
respect
energy pulses
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB26217/45A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Allen B du Mont Laboratories Inc
Original Assignee
Allen B du Mont Laboratories Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Allen B du Mont Laboratories Inc filed Critical Allen B du Mont Laboratories Inc
Publication of GB604526A publication Critical patent/GB604526A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
    • G04D7/1214—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for complete clockworks

Abstract

604,526. Circuits for stethoscopic and like apparatus. DU MONT LABORATORIES, Inc., A. B. Oct. 8, 1945, No. 26217. Convention date, Oct. 6, 1944. Drawings to Specification. [Class 40 (iv)] [Also in Groups XVIII, XXXVIII and XL (b)] In an arrangement for testing watches or other oscillating mechanical or electrical systems, a cathode beam scans the screen at a rate related to the correct speed of the watch to produce a substantially rectangular raster and is modulated by each tick or other periodic impulse. As a result, when the watch is going regularly at the correct speed, a horizontal line of dots is produced on the screen. If the speed is too high or too low, a sloping line is produced, or if it is irregular the line is not straight.
GB26217/45A 1944-10-06 1945-10-08 Improvements in apparatus for testing the accuracy of frequency of energy pulses with respect to a time standard Expired GB604526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US604526XA 1944-10-06 1944-10-06

Publications (1)

Publication Number Publication Date
GB604526A true GB604526A (en) 1948-07-06

Family

ID=22029567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26217/45A Expired GB604526A (en) 1944-10-06 1945-10-08 Improvements in apparatus for testing the accuracy of frequency of energy pulses with respect to a time standard

Country Status (1)

Country Link
GB (1) GB604526A (en)

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