Abstract: A buckling-type paper sheet folder comprises a protective housing (7) and two pairs of folding cylinders (W1, W2, W3, W4) which are mounted in a cylinder frame (1) and conjointly driven by an electric motor (4). Folding pockets (5,6) and the cylinder frame are enclosed on all sides by the housing which has two parts, namely a base (8) and a cover (9), that are hinged and/or detachably connected to each other. In the base, a box-like compartment (12) is formed below the folding pockets accommodating the cylinder frame. The cover comprises a wall (45) extending between vertical side walls (40,41) and covering the upper foldin pocket (5) and having a portion (48) forming the upper boundary of a sheet intake opening. The cover further comprises a second wall (54) extending above the second folding pocket (6) inwardly, to form the lower boundary of the intake opening (51), and having a front portion 39.

Abstract: An apparatus for sequentially forming a plurality of generally longitudinally extending grooves in the peripheral surface of a filter rod includes a hollow rotatable drum having a plurality of filter rod receiving channels formed in its outer peripheral surface for receiving filter rods to be grooved. The device includes filter rod indexing devices which engage the filter rods in the receiving channels. As the drum rotates about its central axis, the filter rod indexing devices are individually and selectively activated to incrementally rotate selected filter rods about their longitudinal axes through an angle corresponding to the angular spacing between adjacent grooves to be formed in the peripheral surface of the filter rod.

Abstract: In a method of operating a tandem rolling mill, the speeds of the mill rolls are kept constant, a signal representing the mass flow of material entering the first stand is compared with a signal representing the desired mass flow of material leaving the last mill stand and the difference, if any, is used to control the load on the first stand in the sense to reduce the difference substantially to zero.

Abstract: A can end manufacturing apparatus including an endless belt (1) having spaced apertures (12) for supporting the can ends (C) through the various stages of manufacture, said belt (1) being supported by spring-loaded travel rails (2, 3) arranged in guide slots (4) formed in longitudinally spaced supporting pillars (5) arranged on either side of a die station chamber (6) within which several die stations (7, 8, 9) and a sealant application station (10) are arranged. During each manufacturing operation, the transfer belt (1) is moved vertically so that each can end (C) is brought into engagement with the die stations (7, 8, 9) and the sealant application station (10). During this vertical movement, the atmosphere within the die station chamber (6) is alternatively compressed and rarefied.

Abstract: A method and apparatus for producing tubing from hollows or workpieces which are in the form of tubes having greater wall thickness than the finished tubes. The method is carried out upon a mill of the general type known as a McKay rocker. The mandrel is allowed to float in the hollow by being restrained at the rocker crosshead by friction rather than a positive locking device. The rocking is permitted with the mandrel sliding in the crosshead so as to reduce high tensile forces which could otherwise cause mandrel failure.

Abstract: Machine for machining a groove round the external periphery of the base of a nozzle and notably enabling the back of a weld to be reworked from the outside when a nozzle is being installed on a nuclear reactor vessel.The machine comprises a cylindrical drum (5) in two parts (41, 45) equipped with locking and position-holding shoes (6), a machining head driven in rotation by means of a gear ring (9) and a pinion (17). The cylindrical drum (5, 41, 45) is locked and held in position with respect to the nozzle (1) by means of an intermediate coupling ring (23) secured by screws (31) to the nozzle (1) and by the locking shoes (6) fixed to hydraulic rams (47).

Abstract: The invention relates to a method for blowing away particles of glue in a strip-gluing unit for folding box forming machines for gluing box blanks. Compressed air is blown from the side of a gluing disc of the gluing unit at an acute angle obliquely towards the direction of travel of the blank at the height of the nip between the blank and gluing disc so that on account of the high speed of the blanks and gluing disc, particles of glue which are thrown off are removed on the shortest path, without these particles splashing on the blanks and machine parts. The air is blown by an air-guide member, which comprises an air chamber, which is connected by lines to a source of compressed air. Starting from the air chamber is a bore whose axis is directed at the height of a nip at the acute angle. The air-guide member is attached in the folding box sticking machine independently of the gluing unit and is seated laterally beside the gluing disc and serves simultaneously to support the travelling blanks.

Abstract: The taping unit has two positioning pins protruding outward from opposed sides of the taping unit. The head structure of the machine has supporting arms having longitudinal guides to accommodate and allow to slide said positioning pins of the top taping unit. Locking pins associated with said arms engage with the pins to allow stopping and locking the top taping unit. A housing recess for the bottom taping unit is provided in the box supporting base and has a pair of side shoulders containing pairs of recessed seats opening upward in which are accommodated the positioning pins of the bottom taping unit.

Abstract: A motor driven apparatus to efficiently and reliably straighten the leads of a pin grid array (PGA) so that the leads are aligned parallel with one another and perpendicular to the flat PGA body. The apparatus includes a nest of parallel knife blades which is mounted for linear travel so as to be either introduced to or retracted from the grid of PGA leads. The nest of knife blades is carried by an oscillator assembly which is adapted to automatically oscillate (i.e. pivot) the blades between respective rows of PGA leads. When the nest of knife blades is introduced to the grid of PGA leads, the back-and-forth oscillations of the knife blades will cause the blades to engage and straighten any bent leads. The PGA is carried by a rotatable table assembly. When the nest of knife blades is retracted from the grid of PGA leads, the table assembly may be automatically rotated (e.g.

Abstract: A cutting insert having excellent toughness as well as wear resistance is provided comprising a substrate consisting of a sintered hard metal or alloy such as cemented carbides and a coating film provided thereon consisting of a material having a higher hardness than the substrate, characterized in that the coating film near the cutting edge is continuously made thinner or removed toward both the rake face and flank face.

Abstract: A method for cold rolling a tubular blank using a Pilger rolling mill, the tubular blank being rolled between a mandrel, lodged inside it, and the grooves of a pair of rolls, mounted within a stand which performs a back and forth motion along the axis of the tubular blank, the rolls being driven in rotation alternatively in one direction and in the other, in synchronism with the movements of the stand, a forward motion of the blank being done at least at proximity of the downstream neutral point. During at least a part of the return run of the stand, a holding back device, placed on the downstream side relative to the stand, prevents the displacement of the already rolled tubular blank along the rolling axis in the upstream direction during the return rolling run.

Abstract: The present invention relates to a bending press having an upper and a lower tool disposed on a frame, together with a hydraulic ram for bringing the upper and lower tools together. The upper tool comprises a fixed punch of an arcuate shape, and has a plurality of detachable punches that are detachably mounted on the fixed punch for changing the external shape of the punch.

Abstract: A one-sided corrugated cardboard machine comprising a machine stand, an upper and a lower fluted roller as well as a pressure roller cooperating with the lower fluted roller and pivotally supported on lever arms at the machine stand, adjustable abutment surfaces at the machine stand associated with the lever arms, and an adjusting mechanism supported at the machine stand and cooperating with the lever arms which to adjust the pressure roller nip urge the lever arms against the abutments, with the abutment surface arranged to face the pressure roller nip and limiting the movement of the lever arms away from the pressure roller nip.

Abstract: Apparatus for severing window patches from a web of patch material includes a mechanism for applying adhesive to selective portions of the web, a pair of cooperating rolls to feed the web to the adhesive applying mechanism, a vacuum roll engaging successive window patches with adhesive, a severing mechanism cutting successive window patches of a pre-selected length from the web in spaced relation to a portion of the web engaged to the surface of the vacuum roll, a vacuum conveyor positioned between the adhesive applying mechanism and the severing mechanism to advance the web along a path from the adhesive applying mechanism toward the severing mechanism, a discharging end portion of the vacuum conveyor being spaced from the severing mechanism. The vacuum conveyor is constructed and arranged to transport the web from the adhesive applying mechanism, a pre-selected distance through the vacuum roll before the web is transferred to the vacuum roll and from the latter to the severing mechanism.

Abstract: A rough beam (4) is formed on a universal stand (11), and a two high stand starting with an initial section (1) of rectangular or trapezoidal cross-section, in two series of passes in the universal stand. During the first series reduction of the web forming portion is effected by horizontal rolls (5, 6) acting on the central portion of the initial section (1) and during the second series of passes both the horizontal rolls (5, 6) and the vertical rolls (7, 8) of the universal stand (11) simultaneously reduce the web and flanges, respectively. The rough-beam being formed during the second series of passes is also rolled in the open grooves of a two high stand.

Abstract: A process for the manufacture of boxes, wherein a sheet material, such as cardboard, is punched to produce a box element with at least five sections limited by parallel score lines; the ends of at least three sections are inserted and fastened in U-grooves recessed in side walls formed by synthetic material, a fourth section forms a lowerable and liftable cover and a fifth terminal section forms a closing flap, for which each side wall of synthetic material has an insertion groove. The fastening of the punched element to the side walls may be carried out without adhesives by means of the engagement of the punched element edges, and of cuts thereof, in the U-grooves of the side walls, and with some teeth of them. Some side flaps defined in the closing flap can co-operate with inwardly and outwardly directed teeth of the insertion grooves, by providing for the cover in closed position a releasable catch and, respectively, a sealed closing.

Abstract: A process and apparatus are provided for manufacturing cardboard tubes with incorporated closure for packing or sending articles or documents and tubes obtained by implementing this process. The process comprises the continuous formation of a cardboard tube on the rotary mandrel of a spiralling machine and cutting the tube into tube elements discharged by the machine. This cut out is provided in the form of a sinusoid with provision of appropriate fold lines. Thus tube elements are obtained, without waste of material, whose ends have two opposite tongues which may be folded back, the adjacent ends of two successive tube elements being offset by 90.degree..

Abstract: A cutting tool comprises a bit-holder fed at a prescribed feed amount f per rotation of the workpiece, and a throw-away tip which is formed of superhard metal, which has an outer peripheral surface of prescribed shape, an inner peripheral surface provided concentrically with the outer peripheral surface, similar to the prescribed shape of the outer peripheral surface and defining a hollow part and a predetermined thickness t and which is detachably mounted to the bit-holder. A distance .omega. between the inner peripheral surface of the throw-away tip and the outer peripheral surface thereof is defined within a range satisfying the following formula represented by; f.sub.max .ltoreq..omega..ltoreq.t.

Abstract: The invention features an apparatus for fabricating a box-like article or slipcase. The apparatus feeds a box blank from a hopper containing stacked blanks to a work station. The work station comprises a forming block about which the panels of the box blank are folded and bonded together, and clamping, folding and heating apparatus. The complete box is removed from the forming block and conveyed away which causes the fabricating cycle to process a new blank into a box-like article.

Abstract: A device for punching holes in a surveyor's chain and in metal pieces used for repairing the chain and for riveting together the punched chain and metal pieces comprising an elongated vertical housing having an elongated vertically oriented opening extending transversely therethrough and defined by a continuous wall, an upper vertical bore extending from the top of the housing into the vertical opening, a lower female die element received in the lower portion of the opening and having a flat horizontally extending recess therein whose width is equal to that of the chain to be repaired, the female die element also including a pair of spaced holes located on the flat recess, an upper male die member received in the upper portion of the opening and vertically slidable therein, the male die member having a pair of punching rods projecting downwardly, an arbor shaft having a threaded portion received in a threaded portion of the upper bore, a handle for rotating the arbor shaft, the arbor shaft having a lower port