The National Carbide Lantern model NC-10 is a specific vintage brass carbide lamp primarily used by railroad workers and miners in the early 20th century. It is notable for its distinct design, including a rear-facing blue signal lens used as a safety warning light. Of America for the National Carbide Lantern Co.
Located in the Lincoln Building, New Y ork, NY. Material and Size: It is typically made of brass and stands approximately 11 3/4 inches tall to the top of the handle. Patent Date: The lamp is marked with US Patent No. 1,617,432, issued on February 15, 1927, which relates to the specific design features for the light channels. Dual Lights: A unique aspect is the light channel system: Forward Light: A main, bright acetylene flame projected forward through a clear glass lens with a polished reflector.
Rear Signal: A secondary light channel directed the flame's light through a small blue signal glass lens at the rear of the lamp, functioning as a "danger signal" or presence indicator for other workers in dark tunnels or railway lines. Historical Use The NC-10 was a vital safety tool for specific industrial roles where visibility was crucial: Railroad track walkers Car inspectors Subway and tunnel workers.