Sawmill stacker assembly module

Details Sawmill stacker assembly module Sawmill stacker assembly module

1976-12-06

1978-10-10

Makay, Albert J.

Conveyors: power-driven

Conveyor system for arranging or rearranging stream of items

By laterally or vertically moving successive items in...

198413, 214 1BD, B65G 5908

Patent

active

041192168

ABSTRACT:
An improved fully mechanized sawmill is provided which is composed of structurally independent modules which are removably mounted on a platform composed of a plurality of side-by-side longerons supported horizontally on files of spaced-apart vertical piers and columns. The longerons provide horizontal stress support for the platform along the files of piers and columns perpendicularly to the cutting axis of the sawmill, and the modules mounted thereon provide horizontal stress support for the platform along the ranks of the piers and columns parallel to the cutting axis. In addition, improved mechanisms and techniques are provided for handling and selecting the sawlogs to be cut, for selecting and distributing the pieces cut therefrom according to shape and utility, and for stacking and handling the distributed pieces at preselected locations according to shape and utility. In particular, the stacker assembly comprises a plurality of lifting arms fixedly positioned at one end on a rotatable cross-bar. Rotation of the cross-bar elevates the lifting arms. Each lifting arm includes a stop member, and at least one of the lifting arms includes a retractable clamping tooth for drawing timbers or ties into locking engagement with the stop members. Elevation of the lifting arms deposits the timbers or ties for transport to another location.

REFERENCES:
patent: 2985323 (1961-05-01), Wilson et al.
patent: 3050198 (1962-08-01), Schmunk et al.
patent: 3070240 (1962-12-01), Barriol
patent: 3384249 (1968-05-01), Greenberger
patent: 3662907 (1972-05-01), Nakajo
patent: 3712460 (1973-01-01), Kitajima

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