GB548661A - Improvements relating to apparatus for visually indicating the rotation of revolving shafts and the like - Google Patents
Improvements relating to apparatus for visually indicating the rotation of revolving shafts and the likeInfo
- Publication number
- GB548661A GB548661A GB341741A GB341741A GB548661A GB 548661 A GB548661 A GB 548661A GB 341741 A GB341741 A GB 341741A GB 341741 A GB341741 A GB 341741A GB 548661 A GB548661 A GB 548661A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- contact
- rest
- contacts
- rotation
- 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
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
548,661. Rest or motion indicator. ELECTRIC RESISTANCE FURNACE CO., Ltd., MARSH, J. H., and SCOTT, C. A. March 13, 1941, No. 3417. [Class 106 (iii)] The shaft 2 of which rotation or rest is to be indicated carries an insulating drum 3 rigid therewith and provided with a contact or set of contacts 4 adapted to co-operate with a fixed contact or contacts 5 to control the circuit to a visual device, for instance a neon lamp. The contact 4 is mounted on a drum 3 of insulating material carried by the shaft 2. Brush holders 6 for the brushes 5 are carried on an arm 7 secured to the base plate 8 of a terminal box 9 on the wall of the casing 1. The brush holders are connected to insulated terminals 12, 13 by conductors 11. The terminals are connected to a Neon lamp circuit. When the shaft is rotating, the lamp flickers, but when the shaft is at rest, the lamp is either out or, when the brushes are bridged by the contact 4 remains steadily lighted. Alternatively, the contacts may effect the alternative charge of a condenser and its discharge through the Neon lamp circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB341741A GB548661A (en) | 1941-03-13 | 1941-03-13 | Improvements relating to apparatus for visually indicating the rotation of revolving shafts and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB341741A GB548661A (en) | 1941-03-13 | 1941-03-13 | Improvements relating to apparatus for visually indicating the rotation of revolving shafts and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB548661A true GB548661A (en) | 1942-10-20 |
Family
ID=9757943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB341741A Expired GB548661A (en) | 1941-03-13 | 1941-03-13 | Improvements relating to apparatus for visually indicating the rotation of revolving shafts and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB548661A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2534463A (en) * | 1946-09-16 | 1950-12-19 | Bendix Aviat Corp | Gyroscope position indicating device |
| US3210658A (en) * | 1961-11-07 | 1965-10-05 | Collins Radio Co | Shaft rotational velocity and direction indicating means utilizing a pulse producingand blocking commutator |
-
1941
- 1941-03-13 GB GB341741A patent/GB548661A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2534463A (en) * | 1946-09-16 | 1950-12-19 | Bendix Aviat Corp | Gyroscope position indicating device |
| US3210658A (en) * | 1961-11-07 | 1965-10-05 | Collins Radio Co | Shaft rotational velocity and direction indicating means utilizing a pulse producingand blocking commutator |
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