GB406835A - Improvements relating to electrical speed and distance indicators for use on mechanically propelled vehicles - Google Patents
Improvements relating to electrical speed and distance indicators for use on mechanically propelled vehiclesInfo
- Publication number
- GB406835A GB406835A GB3399832A GB3399832A GB406835A GB 406835 A GB406835 A GB 406835A GB 3399832 A GB3399832 A GB 3399832A GB 3399832 A GB3399832 A GB 3399832A GB 406835 A GB406835 A GB 406835A
- Authority
- GB
- United Kingdom
- Prior art keywords
- interrupter
- cricklewood
- spindle
- rotor
- voltmeter
- 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
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
- G01P3/465—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage by using dynamo-electro tachometers or electric generator
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
406,835. Speedometers; odometers. SMITH, A. G., Cricklewood Works, Edgware Road, Cricklewood, London, and WATSON, E. A., Zinal, Stoneleigh Road, Gibbet Hill, Coventry. Dec. 1, 1932, No. 33998. [Class 106 (iii).] In apparatus in which a permanent magnet generator adapted to supply current to a voltmeter forming a vehicle speed indicator is associated with an interrupter which actuates electromagnetic counting mechanism, epicyclic reduction gear for the interrupter is combined with the rotor. The spindle c, driven preferably from the vehicle transmission, carries the permanent magnet b between two plates p. The stationary magnetic field system comprises poles d carrying a winding e connected to the voltmeter indicator. The rotor also carries planet pinions f gearing with a fixed sun wheel g and with a sun wheel h of slightly different diameter freely mounted on the end of the spindle C, this mechanism forming a reduction gear by means of which a cam i operates a spring controlled interrupter lever j having contacts in a circuit which may be supplied from a battery, the circuit containing a counting device electromagnetically operated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3399832A GB406835A (en) | 1932-12-01 | 1932-12-01 | Improvements relating to electrical speed and distance indicators for use on mechanically propelled vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3399832A GB406835A (en) | 1932-12-01 | 1932-12-01 | Improvements relating to electrical speed and distance indicators for use on mechanically propelled vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB406835A true GB406835A (en) | 1934-03-08 |
Family
ID=10360079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3399832A Expired GB406835A (en) | 1932-12-01 | 1932-12-01 | Improvements relating to electrical speed and distance indicators for use on mechanically propelled vehicles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB406835A (en) |
-
1932
- 1932-12-01 GB GB3399832A patent/GB406835A/en not_active Expired
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