FR432781A - Lanterne électrique étanche pour mines grisouteuses - Google Patents

Lanterne électrique étanche pour mines grisouteuses

Info

Publication number
FR432781A
FR432781A FR432781DA FR432781A FR 432781 A FR432781 A FR 432781A FR 432781D A FR432781D A FR 432781DA FR 432781 A FR432781 A FR 432781A
Authority
FR
France
Prior art keywords
mines
fired
waterproof electric
electric lantern
lantern
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
Other languages
English (en)
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.)
ADT DES ETS
Original Assignee
ADT DES ETS
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 ADT DES ETS filed Critical ADT DES ETS
Application granted granted Critical
Publication of FR432781A publication Critical patent/FR432781A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • F21V25/06—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken feeding a quenching fluid to the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR432781D 1911-07-31 1911-07-31 Lanterne électrique étanche pour mines grisouteuses Expired FR432781A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR432781T 1911-07-31

Publications (1)

Publication Number Publication Date
FR432781A true FR432781A (fr) 1911-12-15

Family

ID=1474833

Family Applications (1)

Application Number Title Priority Date Filing Date
FR432781D Expired FR432781A (fr) 1911-07-31 1911-07-31 Lanterne électrique étanche pour mines grisouteuses

Country Status (1)

Country Link
FR (1) FR432781A (fr)

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