GB670506A - Improvements in or relating to pressure gauges for use in air speed indicating apparatus - Google Patents
Improvements in or relating to pressure gauges for use in air speed indicating apparatusInfo
- Publication number
- GB670506A GB670506A GB244049A GB244049A GB670506A GB 670506 A GB670506 A GB 670506A GB 244049 A GB244049 A GB 244049A GB 244049 A GB244049 A GB 244049A GB 670506 A GB670506 A GB 670506A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- screws
- shaft
- indicating mechanism
- indicating
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Measuring Fluid Pressure (AREA)
- Control Of Transmission Device (AREA)
Abstract
670,506. Pressure gauges; indicating- apparatus. MUNRO, Ltd., R. W., WILSON, J. F. G., PEARCH, R. E., and PIPER, W. J. Feb. 27, 1950 [Jan. 28, 1949], No. 2440/49. Classes 106 (ii) and 106 (iv). An air-speed indicator comprises at least one capsule in operative connection with the static and pitot heads and transmission means, between the capsule and a pointer, capable at all points of its movement of accurate adjustment in order to produce a uniform scale. Capsules 14, 15, one of which is sensitive to small pressure changes, are mounted with the indicating mechanism in a frame supported by a spring stirrup 5 which is secured to the casing 1 solely by a bolt 6 through which passes the pipe 4 leading to the pitot head. A pipe 3 connects the interior of the casing with the static head. The capsules operate an arm 18 fast on a shaft 21 also carrying a counterweight 27 and an arm 29. Screws 30 in the arm 29 are individually adjustable to form a cam surface of such a shape as to produce a uniform scale. The screws are locked by a wire threaded round them. An arm 39 on a shaft 31 provided with a counter-weight 38 is urged against the surface formed by the screws by a hair spring 49 in the indicating mechanism with which a toothed quadrant 42 fast on the shaft 31 gears. The indicating mechanism comprises coaxial pointers 55, 58 geared together in the ratio 10 : 1 and moving over the same circular scale. Different metals may be used for the arms of the transmission mechanism in known manner to provide temperature compensation. Specification 535,542 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB244049A GB670506A (en) | 1949-01-28 | 1949-01-28 | Improvements in or relating to pressure gauges for use in air speed indicating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB244049A GB670506A (en) | 1949-01-28 | 1949-01-28 | Improvements in or relating to pressure gauges for use in air speed indicating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB670506A true GB670506A (en) | 1952-04-23 |
Family
ID=9739619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB244049A Expired GB670506A (en) | 1949-01-28 | 1949-01-28 | Improvements in or relating to pressure gauges for use in air speed indicating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB670506A (en) |
-
1949
- 1949-01-28 GB GB244049A patent/GB670506A/en not_active Expired
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