Abstract: A circular saw having a cutting position for cutting a workpiece at a predetermined location thereof, a gripper for gripping a workpiece at a predetermined location on the workpiece, a drive having a plurality of gears including final and penultimate stage gears, and a backlash eliminator for braking the final stage gear for eliminating backlash between the final and the penultimate stage gears upon the initiation of cutting a workpiece at the cutting position.

Abstract: A cutting machine for cutting elongated workpieces, having a work loading mechanism with a number of inclined, parallel supporting rails for supporting a plurality of elongated workpieces each having a longitudinal axis, the workpieces standing by on the supporting rails parallel to each other and with their longitudinal axes perpendicularly to said supporting rails, said supporting rails each inclining toward a work conveying path for longitudinally carrying workpieces seriatim toward the front end of the work conveying path to a cutting position, a work carrying reciprocating drive including a vise, a carriage and a drive motor for reciprocating along the work conveying path to move the workpieces toward the front end of the work carrying path, the supporting rail closest to the front of the work carrying path being disposed within the range of said reciprocation.

Abstract: A circular saw with a spreading mechanism employing hydraulic cylinders for opening and closing a main vise about a workpiece to be crosscut by a saw blade, and a carrier vise for spreading and for advancing the workpiece for crosscutting, the tightening and loosening of the main vise about the workpiece, and the spreading by the carrier vise is controlled by a hydraulic sequencing circuit resulting in lower manufacturing cost of the saw.

Abstract: Apparatus for loading elongated workpieces that have a circular cross-section, including: (i) a horizontal work transfer section having horizontal rollers for longitudinally movably supporting workpieces; (ii) a plurality of sloping rails for downwardly rollably supporting workpieces parallel to each other, the rails sloping toward and overhanging from one side of the work transfer section; (iii) a plurality of movable stoppers for stopping the first of the downwardly rolling workpieces on the rails, and each stopper being movable along a sloping rail; (iv) a shifter for moving the movable stoppers along the sloping rails; (v) a lock for locking the stoppers in a preselected moved position; (vi) a plurality of work shifters for lifting the lowermost workpiece on the rails and moving it onto the horizontal rollers in the horizontal work transfer section, the work shifters each having a sloping top support surface for the lifting of workpieces, and being adapted for vertical movement along respective vertical p

Abstract: A circular saw with a spreading mechanism employing hydraulic cylinders for opening and closing a main vise about a workpiece to be crosscut by a saw blade, and a carrier vise for spreading and for advancing the workpiece for crosscutting, the tightening and loosening of the main vise about the workpiece, and the spreading by the carrier vise is controlled by a hydraulic sequencing circuit resulting in lower manufacturing cost of the saw.

Abstract: A band saw machine which comprises a generally elongated frame structure including an endless band saw trained between and adapted to travel over a pair of spaced guide wheels and having cutting and return reaches therebetween, a positioning mechanism for fixedly supporting a stock to be cut, and a rocking mechanism including a pair of spaced reciprocating drives for rocking the endless band saw through a predetermined angle in the opposite directions generally about the stock to be cut, with the opposite ends of the frame structure alternately upwardly and downwardly shifted. The frame structure is supported for movement relative to the positioning mechanism between inoperative and cutting positions in a direction generally perpendicular to the stock. The rocking mechanism is operable at least during the cutting operation performed by the cutting reach of the endless band saw.