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| Dew R Lite Bottom | DEW-R-LITE WITH HANDLES - Dewar brass superintendent-style lamp with handles, marked on top DEW-R-LITE and on bottom collar DEWAR MFG. CO. BROOKLYN NY, presentation lamp to miner H. A. CLARK inscribed on brass plate on side, marked on bottom PAT. NOV. 2, 1926 OTHERS PENDING DEWAR MFG. CO. BROOKLYN, NY USA, unfired condition; ex-Colin Gatland collection (The Dewar Manufacturing Co. of Brooklyn, NY was the producer of the "ITP (It's Trouble Proof)" cap and hand lamps, the "Sun-Ray" cap lamps, and the "Dew-R-Lite" hand lamps. Dewar was formed around 1914 by Wilbur A. Cochrane, formerly with the John Simmons Co., Francis H. Coffin, formerly with the Scranton Acetylene Lamp Co., and John M. Brock, lamp designer and inventor. Dewar registered their ITP trademark in 1916 and was already producing its ITP cap and hand lamps. The ITP brand became linked with the term "Float Feed" which was Brock's 1916 patented device for an automatic water feed. The Sun-Ray cap lamp was introduced in 1919 by Dewar as an unusual nickel-plated lamp with a number of distinguishing optional features. These included a matte finish, a cast aluminum "Ha-Mer-It" reflector, a radial-ribbed ornate reflector, the three-position "Han-de-Han-del" carrying bracket and the large diameter "Kra-Ker-Jak" ceramic burner tip. Dewar was also marketing a number of steel and nickel-plated ITP and Dewar hand lamps throughout the 1920s. In 1928, the all-brass Dew-R-Lite hand lamp models No. 204 with handles as shown here and No. 206 with bail were introduced by Dewar and sold throughout the 1930s. Prior to World War II, the Dewar Manufacturing Co. was purchased by the Wolf Safety Lamp Co. of America and Dewar carbide lamp production rapidly tapered off. See Clemmer, American Miner's Carbide Lamps, p 69 and Thorpe, Carbide Light, pp 49-57) SEE BROCK'S FLOAT FEED PATENT IN THE FOLLOWING PIC |  Original Image |
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