GB191007388A - Improvements in or relating to Testing Chambers for Miners' Safety Lamps or the like. - Google Patents

Improvements in or relating to Testing Chambers for Miners' Safety Lamps or the like.

Info

Publication number
GB191007388A
GB191007388A GB191007388DA GB191007388A GB 191007388 A GB191007388 A GB 191007388A GB 191007388D A GB191007388D A GB 191007388DA GB 191007388 A GB191007388 A GB 191007388A
Authority
GB
United Kingdom
Prior art keywords
miners
relating
testing chambers
safety lamps
lamp
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
Inventor
Ernest Arthur Hailwood
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191007388A publication Critical patent/GB191007388A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L23/00—Non-electric hand-lamps for miners

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

7388. Hailwood, E. A. March 24. Lighting burners by electric devices.-In gas-testing apparatus in which a miner' lamp is enclosed in an observation chamber A, means are shown for electrically igniting the lamp while in the chamber. A hinged contact-piece H is pressed into contact with the lighting-pin and held in position by a spring swivel-piece H<2>, the circuit then being closed by a push H<1>.
GB191007388D 1910-03-24 1910-03-24 Improvements in or relating to Testing Chambers for Miners' Safety Lamps or the like. Expired GB191007388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191007388T 1910-03-24

Publications (1)

Publication Number Publication Date
GB191007388A true GB191007388A (en) 1911-03-09

Family

ID=32893936

Family Applications (2)

Application Number Title Priority Date Filing Date
GB191007388D Expired GB191007388A (en) 1910-03-24 1910-03-24 Improvements in or relating to Testing Chambers for Miners' Safety Lamps or the like.
GB191223968D Expired GB191223968A (en) 1910-03-24 1912-10-21 Improvements in or relating to Testing Chambers for Miners' Safety Lamps or the like.

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB191223968D Expired GB191223968A (en) 1910-03-24 1912-10-21 Improvements in or relating to Testing Chambers for Miners' Safety Lamps or the like.

Country Status (1)

Country Link
GB (2) GB191007388A (en)

Also Published As

Publication number Publication date
GB191223968A (en) 1913-10-09

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