Abstract: A web of paper, cardboard, foil or textile material is pulled against and between two rotary knives which sever the web longitudinally and form a slot as well as dust. Such dust is removed by a pneumatic mechanism having one or more nozzles which discharge one or more streams of compressed ionized air against the upper side of the web in the region of the slot, and a suction chamber disposed beneath the path for the web, extending across the slot beneath the nozzle or nozzles, and having one or more suction ports which enable the chamber to collect the particles of dust. The port or ports further enable the chamber to collect those fragments of the web which adhere to the separated sections of the web in the region of the slot between such sections.

Abstract: A router for separating individual component mounted printed circuit boards from a panel consists of a routing machine and programmed control console which controls movement of a spindle assemblage in the routing machine in the Z direction and a table carrying the panel in the X and Y directions. A pressure foot housing, which encompasses the rotatable spindle nose of the spindle assemblage, has a rectangular brush at its end which presses against the panel to be cut by a routing bit. A vacuum exhaust system is attached to an angled port in the housing. The geometry of the housing area causes a vortex to be produced which sucks up all debris cut by the routing bit to the port to be exhausted from the housing.

Abstract: A sheet material cutter is movable between a number of different cutting stations at which it cooperates respectively with a number of stationary spreading tables. Vacuum is transmitted from a single stationary vacuum generator to a number of normally closed junction boxes located one at each of the cutting stations. When the cutter is positioned at a selected cutting station, a vacuum inlet carried by the cutter aligns with the junction box serving that station, and the vacuum inlet is movable between connected and disconnected positions relative to the junction box to supply vacuum from the generator to the cutter.

Abstract: A vacuum assembly for unwrapping electrical wire from an electrical post of a logic panel and preventing the loss of broken wire on the panel. The assembly having a housing surrounding a wire wrap removal tool and drawing a vacuum therearound when the end of the removal tool engages and unwraps the wire from the post.

Abstract: The invention contemplates the provision of a double-shelled dust-collecting hood for a high-speed rotary cutting tool. The outer shell seals itself to the workpiece while the inner shell stands clear of the workpiece. The outer shell is open-ended so that the flow of air induced by a suction port within the hood enters at the unsealed end of the outer shell and reverses direction as it turns into the inner shell.

Abstract: A rotating machining head for automatic tool machines has suction ducts for dust placed inside the head device. This permits the head to have a substantially rounded shape with a minimum encombrance, which is equal in all directions and for any positioning of the head.

Abstract: Method and apparatus for collecting dust and shavings produced by a drum and disc lathe. The apparatus comprises a sealed housing which is adapted to enclose the entire grinding or cutting area of the lathe and trap airborne particles suspended therein. A brake drum or disc is attached to the lathe arbor within the housing through a housing access door prior to the machining operation. The cutting tool extends from the lathe into the housing through an orifice which is covered by a plurality of sealing strips. As the drum or disc is machined, the suspended asbestos and metal dust is removed from the housing to a collection receptacle by the directional air flow from a fan and the heavier metal shavings are collected in a tray located on the housing floor.

Abstract: A vacuum unit comprises a dust confining shroud or casing which surrounds the major portion of a rotating abrading component and is provided with baffle means located relative to the component to define vacuum chambers on opposite sides of the component for effecting withdrawal of the objectionable generated dust from the work area.