GB479075A - A speed indicator - Google Patents
A speed indicatorInfo
- Publication number
- GB479075A GB479075A GB2191136A GB2191136A GB479075A GB 479075 A GB479075 A GB 479075A GB 2191136 A GB2191136 A GB 2191136A GB 2191136 A GB2191136 A GB 2191136A GB 479075 A GB479075 A GB 479075A
- Authority
- GB
- United Kingdom
- Prior art keywords
- byepass
- bulb
- fitted
- tube
- different lengths
- 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
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Road Repair (AREA)
Abstract
479,075. Sandglasses. LOW, A. M. Aug. 8, 1936, No. 21911.' [Class 139] For use by a stationary observer for indicating the lap speed of a travelling object on race tracks of different lengths, an hour-glass type of instrument is used having a casing provided with a plurality of speed scales, corresponding to track circuits of different lengths. A granular or liquid medium falls from a bulb A through a constricted passage B into a tube C, fitted with the said casing. A byepass H is provided for returning the sand &c. quickly to the bulb A. The byepass may connect with the bottom of the tube C, and it may be fitted with a non-return valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2191136A GB479075A (en) | 1936-08-08 | 1936-08-08 | A speed indicator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2191136A GB479075A (en) | 1936-08-08 | 1936-08-08 | A speed indicator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB479075A true GB479075A (en) | 1938-01-31 |
Family
ID=10170866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2191136A Expired GB479075A (en) | 1936-08-08 | 1936-08-08 | A speed indicator |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB479075A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2847067A (en) * | 1955-09-01 | 1958-08-12 | Hynson Westcott & Dunning Inc | Sterilization indicator |
US4408894A (en) * | 1982-04-09 | 1983-10-11 | Hemperly Richard E | Multiple selectable timer |
US5068839A (en) * | 1987-07-16 | 1991-11-26 | Neil Lawrence | Resettable sandglass-type timing device which provides selective timing periods |
-
1936
- 1936-08-08 GB GB2191136A patent/GB479075A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2847067A (en) * | 1955-09-01 | 1958-08-12 | Hynson Westcott & Dunning Inc | Sterilization indicator |
US4408894A (en) * | 1982-04-09 | 1983-10-11 | Hemperly Richard E | Multiple selectable timer |
US5068839A (en) * | 1987-07-16 | 1991-11-26 | Neil Lawrence | Resettable sandglass-type timing device which provides selective timing periods |
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