Abstract: An adjustable wire guide for positioning wire within a given range of diameters on a predetermined intended centerline for the wire for feeding the wire into and/or out of equipment which will act upon or process the wire. It includes two pairs of rollers offset in parallel planes with each roller disposed at 90.degree. from an adjacent roller in another plane so that the wire passing through the guide is engaged at four locations equally spaced around it. Each of the rollers is moved through a camming plate and support structure towards or away from the intended centerline of the wire. The movement is achieved simultaneously through the use of spiral slots in the camming plate which receive pins on structural members supporting the rollers and move each of the rollers inward or outward the same amount with respect to the intended centerline of the wire.

Abstract: Metal wire is descaled by passing it through a series of rollers which bends the wire and causes the scale to loosen and fall off. Two sets of rollers are positioned in planes 90.degree. to each other, through which the wire passes to bend it in different directions. The rollers are pivoted between a wire feed through position and a wire bending position, with the wire bending position being predetermined in relation to the diameter of the wire being descaled. A cam and follower arrangement is provided which upon movement of a center roller causes the breaker rollers to be positioned in the proper location for bending the size of wire being fed through the apparatus.