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2. Wheat lamp - Wikipedia

   en.wikipedia.org/wiki/Wheat_lamp

   A safety lamp designed for use in potentially hazardous atmospheres such as firedamp and coal dust, the lamp is mounted on the front of the miner's helmet and powered by a wet cell battery worn on the miner's belt. The average wheat lamp uses a three to five watt bulb which will typically operate for five to 16 hours depending on the amp-hour ...

3. Safety lamp - Wikipedia

   en.wikipedia.org/wiki/Safety_lamp

   The Sussmann lamp [58] was introduced into Britain in 1893 and following trials at Murton Colliery in Durham it became a widely used electric lamp with 3000 or so reported by the company in use in 1900 [59] However, by 1910 there were only 2055 electric lamps of all types in use – about 0.25% of all safety lamps. [60]

4. Mining lamp - Wikipedia

   en.wikipedia.org/wiki/Mining_lamp

   1920 Electrical lamp with built in accumulator 1924 Miners Lamp Committee – tests and recommendations 1950 Shale miner's electric safety cap lamp and battery pack made in England and supplied by Concordia Electric Safety Lamp Company Ltd, Cardiff. [13] [14] [15]

5. Carbide lamp - Wikipedia

   en.wikipedia.org/wiki/Carbide_lamp

   An acetylene gas miner's lamp. A carbide lamp or acetylene gas lamp is a simple lamp that produces and burns acetylene (C 2 H 2), which is created by the reaction of calcium carbide (CaC 2) with water (H 2 O). [1] Acetylene gas lamps were used to illuminate buildings, as lighthouse beacons, and as headlights on motor-cars and bicycles. Portable ...

6. Headlamp (outdoor) - Wikipedia

   en.wikipedia.org/wiki/Headlamp_(outdoor)

   These lamps consisted of an incandescent lamp with a reflector, and a belt-mounted wet-cell storage battery [citation needed] sized to power the lamp for the entire working shift. [citation needed] After 12 hours a 1917-era miner's lamp produced less than one candlepower and about 2 to 5 total lumens. [3] This pattern became popular for similar ...

7. Today's Wordle Hint, Answer for #1264 on Wednesday, December ...

   www.aol.com/todays-wordle-hint-answer-1264...

   Today's Wordle Answer for #1264 on Wednesday, December 4, 2024. Today's Wordle answer on Wednesday, December 4, 2024, is CRYPT. How'd you do? Next: Catch up on other Wordle answers from this week.