US 4,141,267 AGranted

Sawmill method and apparatus

OwnerRoy R. Pryor, Harold A. Pryorinventors

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Abstract

This invention is directed to an improved stop and loader assembly for use in a sawmill and the like, and more particularly includes an improved combination slapper bar and log turner. The combination slapper bar and log turner preferably includes a rectangular hollow slapper bar section which contains a movable member having a plurality of teeth pivotally attached thereto. A fluid-actuated piston assembly is provided for drawing the movable member and teeth longitudinally in and out of the slapper bar. A slot is further provided in the upper end of the slapper bar and adjacent any sawlog reposing on the carriage next to the slapper bar, whereby the teeth fall out of the slapper bar in an extended position to engage the log when the movable member is thrust upward in the slapper bar, and whereby the teeth fold into the slapper bar whenever the movable member is drawn downward therein.

Claims8

Dependent claims

An improved stop and loader assembly for use in a sawmill having a rotatable saw blade and the like, and further having a carriage movable to and from said saw blade, comprising

a rotatable shaft aligned with and spaced laterally from said carriage,
a pair of stop and loader members mounted in a spaced-apart manner on said shaft and formed to receive and support a sawlog and the like,
a plurality of spaced-apart rail members supporting said shaft and extending perpendicularly between and tilting upward from said shaft to said carriage,
a pair of spaced-apart support members aligned beside said carriage in an end-to-end relationship to each other,
a tubular member having a sidewall aperture adjacent one end rotatable generally arcuately in a vertical plane perpendicular to said shaft about a pivot point aligned with said saw blade and located generally between the adjacent ends of said spaced-apart support members,
first actuating means for rotating said tubular member between a substantially erect position wherein said tubular member is disposed between said support members and said sidewall aperture therein confronts said carriage and a generally reclining position lower than any sawlog supported on said stop and loader members,
log turning means movable longitudinally in said tubular means and having a log engaging portion extendable outwardly through said sidewall aperture and retractable within said tubular means, and
second actuator means for moving said log turning means in said tubular means.

5 more elements

An improved stop and loader assembly for use at a first location in a sawmill having a saw blade rotatable in a cutting line at a second location therein and further having a log carriage movable adjacent said cutting line between said locations, comprising

a rotatable shaft parallel to and displaced from said cutting line at said first location and having a pair of generally crescent-like stops and loader members fixedly located adjacent each end,
a pair of spaced-apart rail members supporting said shaft and extending between said rotatable shaft and said cutting line,
an elongate slapper member pivotally mounted between said rail members for arcuate movement between a first generally reclining position adjacent and lower than said rotatable shaft to a second generally erect position wherein said slapper member is tilted from vertical across said cutting line,
log turning means slidably positioned in and retractably extendable from the upper end of said slapper member toward said cutting line,
first actuating means for arcuately moving said slapper member,
second actuating means for rotating said shaft and stop and loader members,
third actuating means interconnected with said log turning means, and
control means interconnected with said actuating means.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/817,230Filed 20 Jul 1977 · division
Priority: 16 May 1974
Granted: 27 Feb 1979
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B27B 29/085
Trunk or log carriages with gripping means designed to pass the saw blade, especially for band saws; Arrangement of gripping accessories…
B27B 31/02
Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines:…
Y10T 83/65
Work rectilinearly reciprocated through tool station: with means to cause or permit angular re-orientation of work about axis parallel to plane of cut
Y10T 83/6504
With means to cause or permit angular re-orientation of work about axis parallel to plane of cut: by member having work-engaging tooth