GB1392081A - Safety warning equipment - Google Patents

Safety warning equipment

Info

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
Application number
GB1081072A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stephens A M
Original Assignee
Stephens A M
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stephens A M filed Critical Stephens A M
Priority to GB1081072A priority Critical patent/GB1392081A/en
Publication of GB1392081A publication Critical patent/GB1392081A/en
Expired legal-status Critical Current

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.
GB1081072A 1972-03-08 1972-03-08 Safety warning equipment Expired GB1392081A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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