The Standard Lighting Co. · The Standard Lighting Co. · leaf 37
an en- *larged opening at the entrance. By referring to Cut No. 2. No. 8, it will be seen that the channel cup is constructedwith a ledge, which projects from the outer rim toward the center of the cup, on this ledge the outside perforate of the chim-ney rests. This ledge prevents, to a great…
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