Abstract: A cross-beam for a vacuum hold-down table formed by a monoblock section upon which a vacuum hold-down table is fitted and movable on slides. The monoblock section houses a first tubular chamber which extends along its length and is connected to external vacuum source. A part of the first chamber has an opening on which a magnetic seal with a plurality of evenly distributed holes is placed and fitted over this seal on the outside of the monoblock section first chamber is a deformable strip of magnetic material which is movable from one position which closes the first chamber to another position which opens the said chamber during the passage of a deflector unit on the strip which is fixed to the vacuum hold-down table and connects the first chamber and vacuum hold-down table at any point on the monoblock section.

Abstract: In a through feed molder, each tool is mounted to a slide and provided with a dust hood that also carries two conventional hold-down guides, rigidly attached, one on each side of the hood. A mechanism operating between the hood and the slide permits matching of the clearance between the hood and the horizontal bed of the molder to a given tool reference diameter. The hood is also interconnected with the bed by a measuring device which verifies the clearance of the entire tool assembly according to the thickness of the work. Displays are used to indicate the tool reference diameter and the distance of the hood from the bed.

Abstract: In a through feed molder, at least one of the horizontal tools is equipped with a dust hood that also carries the two-hold-down guides rigidly attached one on each side. The hood is connected to the tool slide by way of a mechanism that permits matching of the clearance between the hood and the horizontal bed of the molder to a given tool reference diameter. Uninterrupted progress of the work is ensured by an additional feed wheel mounted to a back rail and internally of a recess in the hold-down guide which immediately follows the tool along a feed path.

Abstract: A device is fitted on automatic cycle woodworking machines and is able to protect the material subjected to machining against the danger of it splintering in the region of the outgoing edge of the tool.The device consists of a movable element provided with a splinter preventing block and constituted by a carriage movable, in two directions, along the infeed path of the pieces to be machined. The carriage has connected to it an extension to which is secured a wood block that constitutes the splinter preventing means for the pieces to be machined, and this is able to rotate around a longitudinal axis along which the carriage traverses from a position away from the piece being machined to a position close thereto, the carriage and the extension being so controlled that the splinter prevention block is automatically positioned for the period of time needed for machining, on each piece to be handled, in the region of the outgoing edge of the tool with respect to the direction of rotation of this.

Abstract: A machine for machining workpieces, such as panels, planks, and sections. The machine includes a conveyor for conveying workpieces in an infeed direction past a plurality of operating stations fixed in position along a conveying line. A carriage cooperates with the conveyor to support and feed the workpieces. The carriage is coupled with the conveyor for conjoint movement in the feeding direction of the workpieces. The carriage cooperates with other members to form articulated quadrilateral that supports a bar in such manner that the angle formed between the axis of the bar and the conveying line is adjustable. The bar, together with the conveyor, provides support for workpieces being machined.

Abstract: This disclosure relates to a planer provided with means for reducing the noise emitted by the blade-retaining shaft. The blades have a cutting edge projecting from the rotary surface of the shaft. Ahead of each blade with respect to the shaft direction of rotation there is arranged a deflecting surface which deflects the air flow over the cutting edge and has a free edge whose distance from the axis of rotation of the blade-retaining shaft is smaller than that of the cutting edge.