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Simmons Ad 1909 Coal Field Directory
Baldwin Nickel I RSide
Baldwin Nickel I LSide
  Baldwin Supt Perforated Reflector.JPG - BALDWIN PERFORATED REFLECTOR - Brass Baldwin supt. lamp with push-on dish perforated reflector with 4 small holes around burner, top marked THE BALDWIN LAMP, PATENT DATES AUG.28, 1900 and MAY 22, 1906, OTHERS PENDING,  marked bottom JOHN SIMMONS CO., NEW YORK, USA with S TRADE MARK, ex-Glen Holstlaw collection  (The relationship between Frederic Baldwin and the John Simmons Company is discussed elsewhere in my carbide lamp pics.  Prior to Baldwin's departure from Simmons in 1913, there were many design and appearance changes made during the early years (1910-1913) of the Baldwin pinchwaist lamps.  A major focus of Baldwin's design approach was to maintain a "steady even flame at all times whether the miner is standing still or swinging a pick."  Included with this approach was the concern of the lamp's flame going out during times of increased pressure and air currents due to blasting and other sources.  To address this problem, Baldwin filed a patent for a perforated reflector as an improvement to the cup-shaped reflector commonly found on  pinchwaist lamps.  The patent was granted to Baldwin on July 1, 1913 as patent #1,066,241.  As claimed by Baldwin, the perforations in the base of the reflector would allow the escape of air collected by the reflector when the lamp was moving rapidly or was exposed to a strong wind so that the flame's luminosity was not diminished.  This is one of the patents listed on the side of the Zar carbide lamp, shown elsewhere in my cap lamp pics, which also has a perforated reflector.  See Bohannan, Mining Artifact Collector #17, pp 4-7)  
Baldwin Nickel I Back
Baldwin Nickel I Bottom
Baldwin Nickel II
Baldwin Supt Perforated Reflector Bottom
Baldwin Supt I

Baldwin Supt Perforated Reflector | BALDWIN PERFORATED REFLECTOR - Brass Baldwin supt. lamp with push-on dish perforated reflector with 4 small holes around burner, top marked THE BALDWIN LAMP, PATENT DATES AUG.28, 1900 and MAY 22, 1906, OTHERS PENDING, marked bottom JOHN SIMMONS CO., NEW YORK, USA with S TRADE MARK, ex-Glen Holstlaw collection (The relationship between Frederic Baldwin and the John Simmons Company is discussed elsewhere in my carbide lamp pics. Prior to Baldwin's departure from Simmons in 1913, there were many design and appearance changes made during the early years (1910-1913) of the Baldwin pinchwaist lamps. A major focus of Baldwin's design approach was to maintain a "steady even flame at all times whether the miner is standing still or swinging a pick." Included with this approach was the concern of the lamp's flame going out during times of increased pressure and air currents due to blasting and other sources. To address this problem, Baldwin filed a patent for a perforated reflector as an improvement to the cup-shaped reflector commonly found on pinchwaist lamps. The patent was granted to Baldwin on July 1, 1913 as patent #1,066,241. As claimed by Baldwin, the perforations in the base of the reflector would allow the escape of air collected by the reflector when the lamp was moving rapidly or was exposed to a strong wind so that the flame's luminosity was not diminished. This is one of the patents listed on the side of the Zar carbide lamp, shown elsewhere in my cap lamp pics, which also has a perforated reflector. See Bohannan, Mining Artifact Collector #17, pp 4-7) Download Original Image
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