GB1392081A - Safety warning equipment - Google Patents
Safety warning equipmentInfo
- Publication number
- GB1392081A GB1392081A GB1081072A GB1081072A GB1392081A GB 1392081 A GB1392081 A GB 1392081A GB 1081072 A GB1081072 A GB 1081072A GB 1081072 A GB1081072 A GB 1081072A GB 1392081 A GB1392081 A GB 1392081A
- Authority
- GB
- United Kingdom
- Prior art keywords
- safety warning
- safety helmet
- warning equipment
- loundspeakers
- stephens
- 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
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Helmets And Other Head Coverings (AREA)
Abstract
1392081 Safety helmet A M STEPHENS 26 Feb 1973 [8 March 1972] 10810/72 Heading A3V [Also in Division G1] A safety helmet for use in working on overhead power supply lines incorporates a proximity detector in the crown and is made from two glass-fibre shells with components e.g. charging socket 4 for an audible alarm connected to the detector mounted in recesses in the brim 14. The alarm drives two small loundspeakers 6 adjacent the wearer's ears.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1081072A GB1392081A (en) | 1972-03-08 | 1972-03-08 | Safety warning equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1081072A GB1392081A (en) | 1972-03-08 | 1972-03-08 | Safety warning equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1392081A true GB1392081A (en) | 1975-04-23 |
Family
ID=9974695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1081072A Expired GB1392081A (en) | 1972-03-08 | 1972-03-08 | Safety warning equipment |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1392081A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2147708A (en) * | 1983-09-22 | 1985-05-15 | David William Knight | Sensing apparatus |
GB2272776A (en) * | 1992-05-16 | 1994-05-25 | William Rea Petticrew | Sensing energisation of an electric device |
GB2343958A (en) * | 1998-09-23 | 2000-05-24 | Polytronics Design Limited | Device for detecting live conductors |
EP3428660A1 (en) * | 2017-07-12 | 2019-01-16 | Copel Distribuição S.A. | Three-dimensional electric field sensor in hard hats |
-
1972
- 1972-03-08 GB GB1081072A patent/GB1392081A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2147708A (en) * | 1983-09-22 | 1985-05-15 | David William Knight | Sensing apparatus |
GB2272776A (en) * | 1992-05-16 | 1994-05-25 | William Rea Petticrew | Sensing energisation of an electric device |
GB2343958A (en) * | 1998-09-23 | 2000-05-24 | Polytronics Design Limited | Device for detecting live conductors |
EP3428660A1 (en) * | 2017-07-12 | 2019-01-16 | Copel Distribuição S.A. | Three-dimensional electric field sensor in hard hats |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |