FR703008A - Incandescent lamp lighting device with firedamp protection - Google Patents

Incandescent lamp lighting device with firedamp protection

Info

Publication number
FR703008A
FR703008A FR703008DA FR703008A FR 703008 A FR703008 A FR 703008A FR 703008D A FR703008D A FR 703008DA FR 703008 A FR703008 A FR 703008A
Authority
FR
France
Prior art keywords
lighting device
lamp lighting
incandescent lamp
firedamp
protection
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
French (fr)
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Application granted granted Critical
Publication of FR703008A publication Critical patent/FR703008A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F9/00—Devices preventing sparking of machines or apparatus
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
FR703008D 1929-12-18 1930-09-25 Incandescent lamp lighting device with firedamp protection Expired FR703008A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE703008X 1929-12-18

Publications (1)

Publication Number Publication Date
FR703008A true FR703008A (en) 1931-04-22

Family

ID=6613642

Family Applications (1)

Application Number Title Priority Date Filing Date
FR703008D Expired FR703008A (en) 1929-12-18 1930-09-25 Incandescent lamp lighting device with firedamp protection

Country Status (1)

Country Link
FR (1) FR703008A (en)

Similar Documents

Publication Publication Date Title
FR703008A (en) Incandescent lamp lighting device with firedamp protection
FR692232A (en) Negative incandescent lamp
FR660796A (en) Improvement in incandescent lamps
FR702874A (en) Incandescent lamp improvements
FR679084A (en) Lighting fixture
FR688252A (en) Incandescent lamp improvements
FR702423A (en) Anti-glare lighting device
FR668563A (en) Improvements to incandescent lighting lamps
FR699722A (en) Incandescent lamp insert fitted with an adjustment device
FR678630A (en) Incandescent lamp projection device
FR669205A (en) Incandescent lamp
FR645824A (en) Multiple Electrode Incandescent Lighting Lamps
FR678699A (en) Socket for pocket and hand-held incandescent lamps, with reflector
DK45681C (en) Lamp with luminous Gases.
FR652649A (en) Device for incandescent lamps
FR722326A (en) Lighting fixture
FR643668A (en) Ceiling lamp for incandescent electric lamps or the like
FR696845A (en) Lighting installation
FR699358A (en) Anti-glare lighting device
FR35583E (en) Lighting fixture with diffusing globe
FR652346A (en) Lighting fixture with diffusing globe
FR700485A (en) Lighting fixture
FR688889A (en) Lighting device
FR688281A (en) Lighting device
FR653630A (en) Lighting fixtures improvements