GB493032A - Pitch angle indicator device for variable pitch propellers - Google Patents
Pitch angle indicator device for variable pitch propellersInfo
- Publication number
- GB493032A GB493032A GB1288738A GB1288738A GB493032A GB 493032 A GB493032 A GB 493032A GB 1288738 A GB1288738 A GB 1288738A GB 1288738 A GB1288738 A GB 1288738A GB 493032 A GB493032 A GB 493032A
- Authority
- GB
- United Kingdom
- Prior art keywords
- train
- pitch
- propellers
- shaft
- wheels
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/301—Blade pitch-changing mechanisms characterised by blade position indicating means
Abstract
493,032. Screw propellers. THIEMANN, W. H. A. (Vereinigte Deutsche Metallwerke Akt.-Ges.) April 29, 1938, No. 12887. [Class 114] The setting of variable pitch screw propellers is indicated on a dial containing two hands, one of which has an angular motion 12 times that of the other. A shaft a, coupled to the pitch changing gear, is provided with bevel wheels b, b<1>, one of which is engaged with a bevel wheel c on the first shaft of a train of wheels x, the final shaft of which carries a pointer d. This train of wheels also drives a second train g, g<1>, upon the hollow shaft of which is mounted the second pointer f. For use with a propeller of opposite pitch, the bevel wheel c is engaged with the bevel wheel b<1>. In an alternative arrangement for providing an instrument capable of use with right- or left-handed propellers, there is provided an intermediate gear in the first train. This can be shifted, to suit a forward or reverse drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1288738A GB493032A (en) | 1938-04-29 | 1938-04-29 | Pitch angle indicator device for variable pitch propellers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1288738A GB493032A (en) | 1938-04-29 | 1938-04-29 | Pitch angle indicator device for variable pitch propellers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB493032A true GB493032A (en) | 1938-09-30 |
Family
ID=10012949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1288738A Expired GB493032A (en) | 1938-04-29 | 1938-04-29 | Pitch angle indicator device for variable pitch propellers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB493032A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2705537A (en) * | 1947-10-29 | 1955-04-05 | Harry J Nichols | Differential angle indicating and controlling system for variable pitch propellers |
| CN114476024A (en) * | 2022-02-21 | 2022-05-13 | 中国航天科工集团第二研究院 | Propeller pitch angle adjusting device and using method |
| WO2022237404A1 (en) * | 2021-05-12 | 2022-11-17 | 摩比天线技术（深圳）有限公司 | Device for displaying downtilt angle of electrical antenna, and electrical antenna |
-
1938
- 1938-04-29 GB GB1288738A patent/GB493032A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2705537A (en) * | 1947-10-29 | 1955-04-05 | Harry J Nichols | Differential angle indicating and controlling system for variable pitch propellers |
| WO2022237404A1 (en) * | 2021-05-12 | 2022-11-17 | 摩比天线技术（深圳）有限公司 | Device for displaying downtilt angle of electrical antenna, and electrical antenna |
| CN114476024A (en) * | 2022-02-21 | 2022-05-13 | 中国航天科工集团第二研究院 | Propeller pitch angle adjusting device and using method |
| CN114476024B (en) * | 2022-02-21 | 2023-07-25 | 中国航天科工集团第二研究院 | Propeller pitch angle adjusting device and using method |
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