. Canadian forest industries July-December 1915. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. 66 CANADA LUMBERMAN AND WOODWORKER December 1, 1915 Vertical Steam Feed Valve. By reference to the cut, you will note that the valve stems are so con- nected to the bell cranks that one valve balances the other, therefore they are without friction and work very easily. Being a vertical valve, the plug is virtually suspended in a film of oil, consequently, will remain steam tight for a long time. It is self draining, and being a vertical valve and connect
. Canadian forest industries July-December 1915. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. 66 CANADA LUMBERMAN AND WOODWORKER December 1, 1915 Vertical Steam Feed Valve. By reference to the cut, you will note that the valve stems are so con- nected to the bell cranks that one valve balances the other, therefore they are without friction and work very easily. Being a vertical valve, the plug is virtually suspended in a film of oil, consequently, will remain steam tight for a long time. It is self draining, and being a vertical valve and connected as shown, when the sawyer's lever is plumb they are both on the centre, and there- fore no amount of expansion will effect their proper work- Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Don Mills, Ont. : Southam Business Publications
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
