Improvements in Incandescent Gas Fires.

摘要: 2100. Welch, W. Feb. 2. Incandescent gas stoves.-A casing 1 is provided of any desired shape, and admitted to an expansion chamber 2 at the bottom thereof. From latter passes through perforated metal plates dissimilar electric characters, such as copper iron, into another 3, which entirely surrounded with a surface mineral or porcelain substance. The then 4, immediately above incandescent substance 5, consisting metal, asbestos, &c.