GB440319A - Improvements relating to periodicity meters employing vibrating reeds - Google Patents

Improvements relating to periodicity meters employing vibrating reeds

Info

Publication number
GB440319A
GB440319A GB2432435A GB2432435A GB440319A GB 440319 A GB440319 A GB 440319A GB 2432435 A GB2432435 A GB 2432435A GB 2432435 A GB2432435 A GB 2432435A GB 440319 A GB440319 A GB 440319A
Authority
GB
United Kingdom
Prior art keywords
reeds
frequency
sleeve
reed
vibration
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
GB2432435A
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.)
Climax Rock Drill & Engineerin
GEOFFREY HASLEWOOD COOKE
Original Assignee
Climax Rock Drill & Engineerin
GEOFFREY HASLEWOOD COOKE
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 Climax Rock Drill & Engineerin, GEOFFREY HASLEWOOD COOKE filed Critical Climax Rock Drill & Engineerin
Priority to GB2432435A priority Critical patent/GB440319A/en
Publication of GB440319A publication Critical patent/GB440319A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H13/00—Measuring resonant frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Earth Drilling (AREA)

Abstract

440,319. Vibration - frequency indicators. CLIMAX ROCK-DRILL & ENGINEERING WORKS, Ltd., 4, Broad Street Place, and COOKE, G. H., 28, Dalmeny Avenue, Tufnell Park, both in London. Aug. 30, 1935, No. 24324. [Classes 106 (iii) and 106 (iv)] In speed indicators of the vibration-frequency type wherein a reed is tuned to vibrate at the required frequency, three reeds 1, 2, 3 are weighted at their free ends so that the central calibrated reed 2 has a natural period falling between the natural periods of the other two, and the reeds are simultaneously tuned by the axial movement of a slotted member 9 through which the reeds pass. The member 9 is externally-threaded so as to be moved up and down when a sleeve 10 is rotated in a casing 7, the external thread on the sleeve 10 having a greater pitch than its internal thread. The projecting part of the sleeve 10 is calibrated. The lower ends of the reeds are clamped between two spring strips 4, 5. The device may be used to measure the frequency of impact of a percussion tool.
GB2432435A 1935-08-30 1935-08-30 Improvements relating to periodicity meters employing vibrating reeds Expired GB440319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2432435A GB440319A (en) 1935-08-30 1935-08-30 Improvements relating to periodicity meters employing vibrating reeds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2432435A GB440319A (en) 1935-08-30 1935-08-30 Improvements relating to periodicity meters employing vibrating reeds

Publications (1)

Publication Number Publication Date
GB440319A true GB440319A (en) 1935-12-24

Family

ID=10209909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2432435A Expired GB440319A (en) 1935-08-30 1935-08-30 Improvements relating to periodicity meters employing vibrating reeds

Country Status (1)

Country Link
GB (1) GB440319A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428671A (en) * 1944-05-09 1947-10-07 Conn Ltd C G Vibration apparatus
US2543573A (en) * 1946-05-28 1951-02-27 Lord Mfg Co Vibration measuring device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428671A (en) * 1944-05-09 1947-10-07 Conn Ltd C G Vibration apparatus
US2543573A (en) * 1946-05-28 1951-02-27 Lord Mfg Co Vibration measuring device

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