lamps or yokes, at one end of each having four floors or hearths opposite to each in the construction of spars and rigging are shown in which are provided adjusting screws, which termin- other. In the space between the two structures car- the accompanying illustration ofa sailing vessel. The ate in… … THE WETHEY PARALLEL CALCINING FURNACE, . with auxiliary spars, sliding within suitable rings or sockets which are fixed near the ends of said gaffs and inwardly and lies in the same axis as the above-men- carrying rakes or plow blades for stirring and moving booms. These spars are adjusted by means…
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