GB449496A - Improvements in or relating to indicating instruments - Google Patents
Improvements in or relating to indicating instrumentsInfo
- Publication number
- GB449496A GB449496A GB1411535A GB1411535A GB449496A GB 449496 A GB449496 A GB 449496A GB 1411535 A GB1411535 A GB 1411535A GB 1411535 A GB1411535 A GB 1411535A GB 449496 A GB449496 A GB 449496A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pointer
- driven
- gear
- disc
- cams
- 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
- G01P11/00—Measuring average value of speed
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
449,496. Speedometers ; zeroizing- mechanism. IVERSEN, P. A. SCOTT-, 299, Green Lane, Coventry, and CLARK, W. J., The Rosebarn, Bucks Avenue, Watford, Hertfordshire. May 14, 1935, No. 14115. [Classes 106 (i) and 106 (iii)] For comparing the actual and the scheduled progress of a vehicle, a vehicle-driven pointer 3 and a clock-driven pointer 4 are mounted coaxially so as to move over a dial 2 calibrated in terms of distance, and friction couplings are disposed in both pointer transmission mechanisms within the casing 1 of the device. The friction coupling for the spindle 6 of the pointer 3 comprises a collar 10 on the shaft against which a gear 9 is held by a spring plate 12, the gear 9 being driven from the speedometer gearing, gear-box or other driven part of the vehicle. A variable-speed gear interposed between the clock drive and the pointer 4 comprises a friction disc traversed across the face of another friction disc by turning a knob 39, which also serves to set a pointer 54 on a scale 55 showing the different schedule speeds. For zeroizing the pointers 3, 4, a knob 68 is operated to swing a disc 64 on to cams 60, 61 secured to the pointer spindles, the cams being thereby rotated until the disc 64 rests in the arcuate recesses 74 of the two cams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1411535A GB449496A (en) | 1935-05-14 | 1935-05-14 | Improvements in or relating to indicating instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1411535A GB449496A (en) | 1935-05-14 | 1935-05-14 | Improvements in or relating to indicating instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB449496A true GB449496A (en) | 1936-06-29 |
Family
ID=10035254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1411535A Expired GB449496A (en) | 1935-05-14 | 1935-05-14 | Improvements in or relating to indicating instruments |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB449496A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2540942A (en) * | 1948-01-27 | 1951-02-06 | Warren G Grimes | Variable friction gearing |
| US2921468A (en) * | 1955-02-03 | 1960-01-19 | Rockwell Mfg Co | Meters |
-
1935
- 1935-05-14 GB GB1411535A patent/GB449496A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2540942A (en) * | 1948-01-27 | 1951-02-06 | Warren G Grimes | Variable friction gearing |
| US2921468A (en) * | 1955-02-03 | 1960-01-19 | Rockwell Mfg Co | Meters |
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