Woodworking – Feeder or presser – Blank feeder
Patent
1989-09-15
1990-08-21
Bray, W. Donald
Woodworking
Feeder or presser
Blank feeder
83365, 144242D, 144242M, 144378, 144357, 198434, 198394, 4147463, B27B 1504, B27B 3100
Patent
active
049497693
ABSTRACT:
A log-positioning conveyor (10) includes a pair of spaced-apart lug-supporting frames (12, 14) and an interconnecting center frame (16). Vertical and horizontal cylinders (42, 44, 46, 48), one of each at each end of the conveyor, are interconnected between end frame members (22, 24) and anchor locations (50, 52, 54, 56). The cylinders (42, 44, 46, 48) are extended and retracted for moving the conveyor vertically and/or horizontally. The conveyor frame (12, 14, 16) is stabilized in position, both endwise and angularly by a stabilizing arm (66). This arm (66) has a universal joint (68) at its inner end connected to an end frame (24) and a universal joint (70) at its outer end connected to an anchoring structure (72). A system of horizontal and vertical light beams (HB, VB) is used to measure each log as it ascends on the conveyor (10) to an uppermost position. After the measured log reaches the uppermost position, the cylinders (42, 44, 46, 48) are extended or retracted, as necessary, in order to position the entire conveyor (10) to in this manner move the log (L) that is at the uppermost position into a desired pick-up position for that particular log (L).
REFERENCES:
patent: 2857941 (1958-10-01), Baker
patent: 3736968 (1973-06-01), Mason
patent: 3746065 (1973-07-01), Mason
patent: 4250937 (1981-02-01), Detjen
patent: 4262572 (1981-04-01), Flodin
patent: 4294149 (1981-10-01), Olsson
patent: 4353276 (1982-10-01), Ackerfeldt
patent: 4378829 (1983-04-01), Sohn
patent: 4458567 (1984-07-01), Tuomaala
patent: 4737031 (1988-04-01), Mahlberg et al.
Barnard Delbert J.
Bray W. Donald
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