. Canadian forest industries 1916. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. January 15, 1916 CANADA LUMBERMAN AND WOODWORKER 2i X A Cutter Head That Holds Its Balance With all knives in position and clamped, no open slots or gaps are left to weaken the Berlin Round I lead. Each knife with its clamping gib closes its slot in the head completely; their faces bear against the metal of the head its full width, and form a con- tinuous ring of steel that reinforces the cutter head at all points and makes it practically as strong as a solid steel cy
. Canadian forest industries 1916. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. January 15, 1916 CANADA LUMBERMAN AND WOODWORKER 2i X A Cutter Head That Holds Its Balance With all knives in position and clamped, no open slots or gaps are left to weaken the Berlin Round I lead. Each knife with its clamping gib closes its slot in the head completely; their faces bear against the metal of the head its full width, and form a con- tinuous ring of steel that reinforces the cutter head at all points and makes it practically as strong as a solid steel cylinder of the same diameter, thus reducing to a minimum all chance for distortion of head or knife due to abnormal tightening of the clamping This closed knife-slot feature of the Berlin Roun Head has a further advantage in the working pitchy or gummy lumber. By the absence of open slots in the head, the intrusion of pitch and its ac- cumulation in the knife slots is effectually prevented, and frequent shut-downs for its removal, followed by resetting and regrinding of knives, are avoided. It is this type of head—the strongest and heaviest round head ever built—that is used on the Berlin No. 91 Planer and Matcher. 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
