Woodworking – Veneer lathe
Patent
1980-11-20
1983-05-17
Bray, W. D.
Woodworking
Veneer lathe
82 45, 250560, 356384, B27L 502
Patent
active
043835600
ABSTRACT:
A veneer lathe charger apparatus is disclosed for scanning a rotating log with light to determine its optimum yield axis and adjusting the charger spindles through a greater range necessary for large diameter logs to position such axis at a predetermined transfer position. The log is rough centered with its longitudinal axis at a scanning position by rough centering arms which are released prior to scanning. After scanning the log is moved from its scanning position to align such optimum yield axis with a predetermined transfer position axis where it is engaged by a transfer clamp means for movement to a lathe axis position without reclamping by such centering arms. A spindle support and adjustment means is provided for adjusting the charger spindles to move the optimum yield axis of the log to the transfer position axis. A control means enables directionally limited adjustment of the charger spindles a greater distance away from the transfer clamp means than toward such clamp means. The control means causes the charger spindle means to rotate the log into a different rotational position after scanning in order to enable to spindle support and adjustment means to move the log through its greatest adjustment in a direction other than towards the clamp means. This directionally limited adjustment of the scanning spindles enables the transfer clamp means to clear the spindles when such transfer means moves from the lathe position to the transfer position prior to engagement of the log and to engage the ends of the log while the charger spindles are still engaged, thereby eliminating any need to reclamp the side of the log with the rough centering arms.
REFERENCES:
patent: 3392765 (1968-07-01), Brookhyser et al.
patent: 3752201 (1973-08-01), Heth
patent: 3852579 (1974-12-01), Sohn et al.
patent: 4197888 (1980-04-01), McGee et al.
patent: 4335763 (1982-06-01), McGee
Bray W. D.
The Coe Manufacturing Company
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