Abstract:
A guide for use in cutting carpet and a method of joining two portions of cut carpet in edge-to-edge relationship has a base formed as a lower portion (1) and an upper portion (2) interengaged through a longitudinal slideway (6, 10) and presenting an upper ramp surface (3, 11). The upper portion has a longitudinal channel (12) along which a knife blade can pass to cut a carpet portion laid on the ramp (3, 11). The lower portion has a vertical wall (4) vertically below the channel (13) and against which the cut edge of first carpet portion is located to abut during cutting of the second carpet portion on the ramp so that when the guide is removed the two cut edges will fall into edge-to-edge abuttment for joining together.
Abstract:
A device for cutting media is provided. The device includes a cover having a sidewall extending therefrom; a guide disposed substantially beneath the cover and comprising a blade; an actuating mechanism disposed in at least one of the cover and the guide; and an actuating wall disposed between the cover and the guide. Engagement of the actuating mechanism creates a cutting action between the blade and the actuating wall.
Abstract:
A method and system of cutting parts from sheet material comprising a numerically-controlled cutting system having a cutting toll for cutting along a path, the method comprising the steps of: (a) placing a plurality of templates which define the shapes and size of the parts to be cut upon the sheet material while minimizing the spaces between the templeates to form a closely-packed marker; (b) entering the marker into a pre-processor; (c) detecting common lines and tangencies between templates in the marker; (d) determining a path and speed for the cutting toll; and (e) directing the cutting toll in accordance with the path and speed such that the parts are cut from the sheet material. The pre-processor identified critical segments of the cutting path proximately close to one another and generates a modified cutting path using a single pass to cut common line segments.
Abstract:
Method of shearing an element of a nuclear plant to be dismantled. The invention also concerns a device for carrying out said method, with the tool, for example a shear blade (7) having a cutting edge. The element to be sheared is held laterally, pushed towards the blade, and then removed by an arrangement comprising, for example, cylinders. The blade (7) is actuated, for example, by a dual action cylinder (6).
Abstract:
A method of defining a cutting route along which a sheet is cut into a plurality of members according to a composite figure which is made by combining the figures of the members and shows the blank layout for cutting the sheet. In the composite figure, if there is an even number, four or more, of odd vertices formed by an odd number of sides of the inner and other sides forming the composite figure, the vertices of the contour of the composite figure amoung these odd vertices is connected, and auxiliary sides are drawn outside the composite figure so that the number of vertices are reduced to two or zero, to define a cutting route following the inner and outer sides and the auxiliary sides.
Abstract:
A material which exhibits auxetic characteristics and control of thermal expansion characteristics while experiencing significant stress reduction is disclosed. The material has a repeating pattern of void structures along both lateral symmetry lines and longitudinal symmetry lines.
Abstract:
In a method for scanning and cutting sheet-type work material carried on a support surface, the work material is automatically scanned to determine a periphery thereof and to allow for the detection of any flaws within the periphery of the work material. The layout of a marker is then established on the work material and a nesting process for pattern pieces is begun. A first pattern piece is nested onto the work material and a subsequent pattern piece is also nested onto the work material while the first pattern piece is simultaneously cut therefrom. These steps are repeated until all of the pattern pieces are cut from the work material.
Abstract:
A rotary punching apparatus (10) for punching openings (14) in a moving web workpiece (w) the openings having a predetermined length along the longitudinal axis of the web and having a pair of die assemblies (60, 62) located on opposite sides of the path of the web (w) and a drive (54) for rotating the assemblies, a leading die (84) mounted on one assembly, and being moveable for generally radially so as to punch a die opening through the web, a mating die recess punched in the other of the assemblies; and, a trailing die (88) adjacent to the leading die (84), being located to punch the web at a point adjacent the punched die opening so as to punch a second die opening in the web, the first die opening and the trailing die opening together defining a continuous opening (14) having a predetermined length along the web. Also disclosed is a method of rotary punching by use of such apparatus.