B - Operations – Transporting – 27 – L
Patent
B - Operations, Transporting
27
L
144/85
B27L 11/00 (2006.01)
Patent
CA 1188603
Abstract When making wood chips by means of a transportable chopping apparatus, the power of a machine may be in- sufficient for continuous chopping of a wood load positioned on a feeding means. Thus, the chopping operation must be intermittently stopped by manual control or automatically in order to reset the sufficient number of revolutions. Otherwise the number of revolutions will fall below a critical value, a chopper may be clogged and a machine indeed stopped. The knives of a chopper usually have a powerful self-feed, in other words, while chiiping the wood said knives also pull a log in the feeding direction. Thus, mere stopping of the feeding means is not always enough to stop the chopping but, under the pulling action of said knives, a piece of wood moves even through a stopped feeding means. An object of the present invention is a feed breaking method in a transportable chopping apparatus, the main principle of said method being to automatically effect a short, impulse- like reverse run cycle for a feeding means in conjunction with stopping of the feed. During this cycle a piece of wood releases itself off the grip of the chopper knives, whereby the chopping is interrupted.
398766
Macrae & Co.
Perusyhtyma Oy
LandOfFree
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