GB617278A - Improvements in maximum safe air speed indicators for aircraft and the like - Google Patents
Improvements in maximum safe air speed indicators for aircraft and the likeInfo
- Publication number
- GB617278A GB617278A GB21091/46A GB2109146A GB617278A GB 617278 A GB617278 A GB 617278A GB 21091/46 A GB21091/46 A GB 21091/46A GB 2109146 A GB2109146 A GB 2109146A GB 617278 A GB617278 A GB 617278A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gauge
- pressure
- scale
- mach number
- adjustment
- 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
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
- G01P5/16—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid using Pitot tubes, e.g. Machmeter
- G01P5/17—Coupling arrangements to the indicating device
- G01P5/175—Coupling arrangements to the indicating device with the determination of Mach number
Abstract
617,278. Pressure gauges. WARLENIUS, G. A. July 15, 1946, No. 21091. Convention date, Jan. 8. Drawings to Specification. [Class 106 (ii)] A maximum safe air-speed indicator for aircraft &c. comprising a gauge responsive to dynamic (pitot) pressure and indicating this pressure or the corresponding air speed against a scale and a second gauge responsive to static pressure and indicating, on the same scale, the dynamic pressure or air speed corresponding to a certain maximum permissible Mach number, is characterised by the feature that the scale graduations are arranged to be logarithmic in order to provide for simple adjustment of the pointer of the second gauge when it is desired to alter the maximum permissible Mach number. In one embodiment (Fig. 1, not shown), adjustment is made by moving the pointer of the static pressure gauge relative to its spindle. To facilitate this adjustment, the point may be narrowed or twisted to obtain a reading against a smaller scale of Mach number values. In another embodiment (Fig. 2, not shown). the two gauges are rotatable relative to each other, for adjustment purposes, an index on one gauge reading against a maximum Mach number scale on the other.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE617278X | 1946-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB617278A true GB617278A (en) | 1949-02-03 |
Family
ID=20313192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21091/46A Expired GB617278A (en) | 1946-01-08 | 1946-07-15 | Improvements in maximum safe air speed indicators for aircraft and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB617278A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1219261B (en) * | 1961-06-20 | 1966-06-16 | Kollsman Instr Corp | Device for generating a signal when the maximum permissible speed is reached |
| DE1220180B (en) * | 1962-06-22 | 1966-06-30 | Kollsman Instr Corp | Device for displaying the maximum speed allowed for safety in aircraft |
-
1946
- 1946-07-15 GB GB21091/46A patent/GB617278A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1219261B (en) * | 1961-06-20 | 1966-06-16 | Kollsman Instr Corp | Device for generating a signal when the maximum permissible speed is reached |
| DE1220180B (en) * | 1962-06-22 | 1966-06-30 | Kollsman Instr Corp | Device for displaying the maximum speed allowed for safety in aircraft |
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