Miner’s Safety Lamp Patent Model

1878-10-15

This safety lamp is a patent model constructed by William Roberts of Cincinnati, Ohio that received patent number 209,082 on October 15, 1878. In his patent filing, Roberts claimed “the combination of the transparent shell, surrounding the flame and provided with a cap or shell, and the wire-gauze chimneys, mounted upon said cap or shell, and arranged one within the other, so as to form an annular space or chamber between them.”