Abstract:
A separator, characterized by comprising first and second scribe means installed on the upper and lower sides opposedly to each other to scribe the front and rear surfaces of a mother board along the scribe lines pre-set on the front and rear surfaces of the mother board formed of a brittle material and a holdingly transporting means for holdingly transporting the mother board so that the scribe lines on the mother board are positioned between the first and second scribe means.
Abstract:
The present invention relates to a method for forming weakenings in a metal plate (8), comprising of: deforming the metal plate to a predetermined depth to form a weakening thinned portion along at least one line; and bending the metal plate along the line, characterized by displacing relative to each other the metal plate and at least one tool deforming the metal plate along the line and over at least one surface of the metal plate with a force directed substantially transversely of the metal plate and sufficient to deform the metal plate. The invention also relates to a device for performing thereof.
Abstract:
In the present method of producing a metal hollow body (1) having a cylindrical casing which is provided on the exterior with at least one predetermined breaking line (32, 51), the casing is formed by a drawing process and the predetermined breaking line (32, 51) is produced continuously by working without cutting, in particular by rolling in, on the outer surface of the casing, after or during the drawing process.
Abstract:
A sawdust-free wood cutting apparatus (10) comprises a guide (62, 72) for guiding a piece of wood (W) along a feed path having a cutting zone. At least one circular blade (18b) is mounted in the cutting zone and driven in rotation about an axis transversal to the feed path. The circular blade (18b) has a toothless circumferential cutting edge. A feeder (14, 16) advances the piece of wood (W) to be cut through the cutting zone at a linear speed substantially equal to a tangential speed at the toothless circumferential cutting edge of the circular blade (18b).
Abstract:
A method of separating a pipe (1) from an elongate flexible element (2) used to pull the pipe (1) from the ground comprises drawing the flexible element (2) past or through separating means which splits the pipe (1) along its length as it passes to thereby strip the pipe (1) from the flexible element (2).
Abstract:
A slitter scorer wherein a pair of rotating drive shafts (SA, SB) and roll heads (HA, HB) each secured onto respective said rotating drive shafts in an opposing position are provided and sheets fed between said roll heads are processed, a head replacing device is provided, wherein a plurality of pairs of shafts for holding heads (1a, 1b, 2a, 2b), having diameters equal to those of said pair of rotating drive shafts (SA, SB) and capable of being disposed concentrically on the extensions thereof, head replacing means (8, 9, 10) to replace said plurality of pairs of shafts for holding heads, roll heads (Ha, Hb) held on said shafts for holding heads, and transfer means (4, 11 to 15) to transfer roll heads in the axial direction are provided and roll heads (HA, HB) on said rotating drive shafts are replaced with roll heads (Ha, Hb) on said shafts for holding heads by sliding them on said rotating drive shafts (SA, SB) and said shafts for holding heads (1a, 1b, 2a, 2b) respectively.