are connected metallic The annexed figure represents « transverse rods, K K, which take hold of short rods, L section of a plan for freeing canal boats and L, attached to the draft valve, M ; and con- other vessels from water, for which a patent nected with the float, I, is a rod, N, which was… … cold air directly into the smoke flue through tube, 5, open at one end, c, and connected at damper, P. With these provisions, complete .the other with a metal or gutta percha tube, control is obtained over the fire, and this au- d. The open mouth, c, is slightly above the tomatic regulation has…
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