B - Operations – Transporting – 27 – B
Patent
B - Operations, Transporting
27
B
143/11
B27B 13/04 (2006.01) B23D 55/08 (2006.01)
Patent
CA 1120384
ABSTRACT OF THE DISCLOSURE A horizontal bandsaw machine is provided with a double- acting hydraulic motor of a cylinder type which acts not only to raise the saw head assembly but also to positively lower the same to feed the bandsaw blade into a material to be cut. The upper chamber of the hydraulic motor where the hydraulic fluid acts to lower the saw head assembly is connected with a pressure control valve means which is controlled by a cam means to control the hydraulic pressure as the saw head assembly is pivotally lowered so that the feeding force may be kept always optimum. Also, the lower chamber of the hydraulic motor where the hydraulic fluid acts to raise the saw head assembly is connected, when the saw head assembly is to be lowered, to a flow control valve means and a pressure control valve means which are adjustable to control the feeding force according to materials to be cut.
326534
Amada Company Limited
Gowling Lafleur Henderson Llp
LandOfFree
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