Abstract: A chip breaker for a milling center having a bedplate and a rotary cutting tool includes a support and an operative chip breaker element adjustably mounted on the support, the chip breaker element being movable tangentially relative to the cutting tool and the support being adjustable perpendicularly relative to the bedplate.

Abstract: An improved timber thicknessing machine comprises a support frame, at least two parallel, continuous drive chains, a multiplicity of slats disposed in spaced parallel positions extending between the drive chains to form a continuous belt, a rotary cutter block disposed above the belt generally parallel to the slats and having cutter blades around its circumference, rollers above the belt on each side of the cutter block to cooperate with the belt in advancing a workpiece through the machine, and pressure bars resiliently mounted above the belt between the respective rollers and the cutter block to urge the workpiece towards the belt.

Abstract: A machine for planing lengths of timber comprises mutually perpendicular spindles for cutter blocks (7,8). The spindle carrying the cutter block (8) extends below a machine bed (1). The spindle carrying the cutter block (7) extends across the bed (1). A conveyor (5) is provided for feeding a workpiece past the cutter blocks (7,8) at a lower level than the bed. In a modification the spindle carrying the cutter block (7) drives a cutter block (9) which is offset from the spindle itself.

Abstract: In a rotary cutter block each blade (14) is clamped in an inwardly divergent recess (12) by a wedge (16). The wedges (16) may be clamped simultaneously against their associated blades (14) by application of high pressure grease at any of one or more grease nipples (52, 54) which actuates by hydraulic plungers (22) in the bases of the wedge recesses (12). The angle of the wedges (16) is such as to provide a taper-lock between the wedges (16), the blades (14) and the recesses (12), which means that after depressurization the cutterblock can be stored or moved from one machine spindle to another without slackening of the wedges. The invention is of considerable advantage in reducing the amount of setting-up time involved in setting and grinding the blades of a rotary cutter head, since one pressurization is sufficient to tighten all the wedges simultaneously and to the same degree.

Abstract: An improved spindle moulding machine for cutting mouldings in timber and other workpieces comprises at least two rotary cutting spindles mounted on a support frame with their respective axes of rotation parallel to each other and mutually staggered in the direction of their axes. Each rotary spindle is provided with a separate support table for supporting a workpiece relative to the spindle and drive means are provided for rotating the spindles.

Abstract: The machine is suitable for working wood, materials derived from wood, etc. A rotary cutter (10) is movable past tables (12, 14, 16) for supporting workpieces. The cutter (10) comprises a number of cutting discs set coaxially and separated by spacers. On each table (12, 14, 16) a workpiece can be set at a different level. Movement of the cutter along the ends of the workpieces on a single pass can cut a different joint in each workpiece. The thickness and diameter respectively of the cutting discs determine the width and depth of the slots cut in the workpieces for the formation of joints. The thickness of the spacers determines the spacing of the slots, not only in an individual workpiece but also on a number of workpieces set on the various tables (12, 14, 16).

Abstract: A woodworking router has an electric motor driven router head (12) surrounded by a dust collection collar (20). Pneumatic means (26) control the height of the collar relative to the router head between (a) a raised position exposing the router head for tool changing; (b) a lowered safety position in which the collar provides a safety guard around the router head; and (c) an even lower scavenge position for cleaning the worktable without routing. A factory dust collection duct is connected to a dust extraction duct mounting the collar for establishing an air flow over the electric motor (10) for motor cooling.

Abstract: A roller (10) drives a workpiece (not shown, but to the right) along a fence. An electric motor (16) rotates the roller (10) through chains (18, 19) and a double sprocket (20) freely rotatable on an upright shaft (22). The roller (10) is rotatable in relation to an arm (26). The arm (26) is pivotable in relation to the shaft (22). A coil spring (30) around the shaft (22) is fastened at a lower end to a stop (32) and at an upper end of a collar (34), and urges the roller (10) towards the fence. The force of the spring (30) makes the roller (10) engage a wide workpiece strongly, and so increases its tractive effect.

Abstract: In a rotary cutter block a blade is clamped in an inwardly divergent recess by a wedge. A spring positioned between the cutter block and the wedge takes up any slack when the wedge is loosened thereby eliminating the need for operator manipulation of the wedge, blade and optional backing plate for the blade during setting of the blade. Also provided is a cam means for incrementally adjusting the blade outwardly of the cutter block.