Lumber marking system

Details Lumber marking system Lumber marking system

1980-12-01

1983-07-05

Wise, Edward J.

Boots, shoes, and leggings

364560, 144329, 144363, 101 931, G01N 2122

Patent

active

043922040

ABSTRACT:
A lumber marking system for accumulating information about pieces of lumber (e.g., boards), such as grade and volume information, and marking the end of each piece with a related code is disclosed. The boards (29) are moved by a chain/lug conveyor (11) past a series of stations. A pulse generator (45) coupled to the chain/lug conveyor (11) produces a pulse for each increment of conveyor movement. The boards (29) are moved past a console (43) where a viewing operator enters grade data. The boards also moved through a curtain or optical detectors (35), which determines in segments the maximum available length of each board. The boards also pass an optical width measuring system (47) that determines the width of each board by counting the number of pulses generated by the pulse generator (45) during the period of time that a light beam is broken by each board. The resulting grade, length and width data is collated and used to control the setting and actuation of an embossing mechanism (49) that embosses a related numerical code into the end of each board as the board reaches a position in alignment with the embossing mechanism.

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