GB440319A - Improvements relating to periodicity meters employing vibrating reeds - Google Patents
Improvements relating to periodicity meters employing vibrating reedsInfo
- 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
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.
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)
| 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 |
-
1935
- 1935-08-30 GB GB2432435A patent/GB440319A/en not_active Expired
Cited By (2)
| 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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