On the theory and practice of art-enamelling upon metals (1899)
Cunynghame, Henry H. (Henry Hardinge), Sir, 1848-1935 · Westminster : A. Constable & Co. · leaf 99
ell. Great saving of heat is obtainedby surrounding the furnace completely with infusorialearth, or Kiesselguhr, or by plastering it well overwith non-conducting boiler composition. The furnacewill consume from j to i cubic foot of gas per hourfor each square inch of floor surface of the muffle.The… … Gas Muffle Furnace. A Mask. B Screen of wood lined with iron. C Swing glass door, tc intercept the heat. D A plate, on a fire-clay support, placed on a shovel ready to be put into the furnace.E The furnace. F The door, with a handle attached. G A slab of fire-clay for resting the plate upon when…
Enamel and enameling
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