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WO/1991/000785A1 |
This invention relates to a sheet metal poly-V-groove-pulley consisting of a cup-shaped material (3) having a circumferential wall (5) formed integrally with and extending at right angles from an end portion of a bottom wall (6), a poly-...
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WO/1990/015679A1 |
In order to roll a taper on a workpiece, the gap between the rolls of a rolling mill is adjusted during the rolling. A transducer is provided to indicate the extent of the gap between the rolls and, from time to time, the rolls are broug...
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WO/1990/015678A1 |
When deforming an elongate workpiece (A), as by forging, rolling, or the like, it is necessary to know the exact position of the workpiece along its length with respect to the deforming means. To this end, one end of the workpiece (A) is...
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WO/1990/012175A1 |
According to a process for the manufacture of a framework (1) for reinforcing concrete structures and, in particular, concrete slab or shell structures in the form of a steel strip (3) with notched or goffered surfaces, a hot laminated s...
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WO/1990/009250A1 |
A regular or irregular toothed profile or similar is shaped on a pot-shaped sheet metal blank (rough pot) by means of a pair of profiled wheels. To this end, the rough pot is placed in a play-free manner on a spur-toothed wheel with a ne...
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WO/1990/006856A1 |
According process for automatically matching at least two substantially cylindrical surfaces, engaging each other, particularly for mechanical emboss engraving, the freedom ranges, of a conventional machine, are mechanized and subjected ...
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WO/1990/003233A1 |
A metal sheet (10) is pre-treated by passing it between two ironing rolls (4, 5) to plastically strain elongated narrow zones thereof in a manner causing localised elongation thereof. Subsequently the sheet is roll-formed to produce fold...
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WO/1990/002315A1 |
An optical metrological scale (110) is produced by a rolling method, to give a profiled upper scale surface (109) which is imparted by an embossing roller (101). To prevent uneven strains, which could affect the pitch of the scale, the s...
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WO/1989/010805A1 |
A wire straightener (16) and multiple preform rollers (20) prepare a continuous length wire (14) for further forming by multiple form rollers (24) having multiple spaced apart notches (117) formed in an annular edge (118) of the rollers ...
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WO/1989/005203A1 |
The invention concerns a device for shaping a pulley blank, in particular for making poly-V profiles. A sheet metal object is surrounded by an annular tool (7) mounted eccentrically on an inner cam located on an outer cam (14). The outer...
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WO/1989/000899A1 |
A method of making workpieces, for example springs with few leaves, consists in placing a heated workpiece (1) on a calibration die (2) and feeding it into a deformation zone to form an article of a desired profile, the deformation being...
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WO/1988/003450A1 |
A method for producing the rack of variable ratio rack-and-pinion steering arrangements in which a uniformly toothed pinion meshes with a non-uniformly toothed rack. The rack has a central section (7) of uniform pitch and tooth shape fla...
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WO/1988/002287A1 |
An apparatus, based on a conventional lathe, for the screening of ink transfer rollers including a rotatable screen forming tool (45) rotatably held above the ink transfer roller (9) by a pivoted arm (26). The arm (26) pivots about an ax...
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WO/1988/001917A1 |
Since conventional cross roll forging is carried out at a high temperature, decarburization occurs in a chemical reaction due to thermal oxidation, so that the work must be subjected to post-processing. Since, however, the present proces...
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WO/1987/007435A1 |
A battery receptacle for selectively and alternately receiving a lithium battery (11) which has positive and negative terminals (13) on a first end face (9), and alkaline-manganese batteries (21), each of which includes positive (22) and...
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WO/1986/006443A1 |
A downhole screw motor comprises a casing (1) containing inside it working organs consisting of two elements: an external one which is made as a bushing (2) with inner spiral teeth (2'), and an internal one which is made as a shaft (3) p...
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WO/1986/004274A1 |
The method according to the invention relates to the making, without material removal, of grooves such as helical threads on the wall of tubes made of ductile or plastic materials. It consists in operating a knurling roller (11) having a...
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WO/1986/003996A1 |
A rotary forming machine assembly including a lower base (12) and a pair of spindle housings (14) including front (16) and rear (18) walls. A tool spindle (20) is rotatably mounted between the front (16) and rear (18) walls of each of th...
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WO/1986/002867A1 |
A method of manufacturing a drill shaped cutting tool which is used to roll a workpiece, such as a wire rod by a rolling die; and a rolling die used for this purpose. This rolling die (201) is provided at at least a portion of a substant...
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WO/1986/002416A1 |
A fastener having a shank with a relatively abrupt transition (34) from an unthreaded portion (33) to a full thread dimension (35), the thread runout (36) occupying no more than one pitch length of the thread in the axial dimension, and ...
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WO/1986/002296A1 |
Method and machine for making rotational bodies by plastic deformation with a diameter varying lengthwise. Method wherein, upon rotating the blank, a local pressure is exerted with a progressive increase of force involved at start so as ...
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WO/1986/001753A1 |
The device is provided for the rolling or pressing of spiral drills from a preheated cylindrical blank (21) by means of squint profiled rollers (15) concentrically distributed at the periphery of the blank, delimiting a calibrated openin...
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WO/1986/001753A2 |
The device is provided for the rolling or pressing of spiral drills from a preheated cylindrical blank (21) by means of squint profiled rollers (15) concentrically distributed at the periphery of the blank, delimiting a calibrated openin...
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WO/1986/000549A1 |
This invention is characterized in that, during the manufacture of an integrally-forged light alloy wheel for an automobile, an outer rim (12), which rises from the outer circumference of a disc surface (11), is formed simultaneously wit...
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WO/1986/000554A1 |
A composite assembly knurling tool for forming uniformly-spaced horizontal serrations continuous across the surface of a metal flake producing drum. The knurling tool comprises an alternating array of spacer (15, 17, 19, 21, 23) and form...
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WO/1985/003114A1 |
The method for making the failure-resistant damper provides for fabricating a hollow cylindrical blank (1) of which the multilayer wall is provided with an artificial discontinuity (2) taking place at least in one of its layers. The diam...
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WO/1985/002797A1 |
A apparatus for forming splines in a first portion (22) of a shaft (13) of a workpiece (12) and a thread in a second portion (24) of the shaft (13) which has a smaller cross sectional diameter than the first portion (22), the apparatus i...
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WO/1985/000400A1 |
A safe security system which includes a key operated time delay lock (10) and a separate key switch (9) thereby requiring two individual keys for the opening of the safe, a dye marking device (20) within the safe, a door switch (23), and...
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WO/1984/000511A1 |
A wheel (16) of which the periphery is shaped as a profile which is complementary to that of the threading to be surfaced, is used as a cutter for roller burnishing a helical thread. The wheel (16) is idle mounted in rotation about an ax...
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WO/1984/000186A1 |
Reinforcement of a moldable material by means of fibers comprised of a filiform body provided at each of each ends with an anchoring device consisting of one or a plurality of volumes of any shapes and of which all cross-section dimensio...
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WO/1983/002741A1 |
For the manufacture of a nut, a piece of plate material which is bent to form a tube (9) can be used. This tube can be placed over a mandrel (8) and clamped together around the mandrel, first by means of a pair of spring-loaded dowels (5...
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WO/1983/001097A1 |
Nail-type fastener, comprising an elongated shank (1) with a head at one end, and a point at the other end. The nail shank has three symmetrically placed, longitudinal grooves (4) separated by longitudinal ridges (8) with a cross-section...
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WO/1983/000025A1 |
An automatic rolling train comprises a loading device (1), a rolling mill (4) provided with at least two pairs of tools (9, 11 and 10, 12) located on the opposite sides of the rolled workpieces, a mechanism (14) for feeding the workpiece...
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WO/1982/004207A1 |
A method of making articles by deformation of cylindrical work-pieces comprises the heating of work-pieces (1), their cross-helical rolling with simultaneous deformation of their butt-end waste parts (3) by means of cutoff blades, subseq...
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WO/1982/000608A1 |
A cross rolling mill comprises a split casing (1) inside which are mounted parallel plates (4) and (5) provided with wedge-shaped deforming instruments (9) and (10). The upper and the lower parts (2) and (3) of the casing (1) are provide...
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WO1982000109A1 |
A thread-rolling tool comprises a casing (1) in which, evenly spaced along a circumference, are mounted threading rolls (3), (4), (5) with their axes inclined in relation to the axis of rotation of the casing (1) at an angle equal to the...
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WO/1982/000014A1 |
A method of obtaining on a workpiece a resilient screw thread with a closed helical cavity inside its profile comprises plastic deformation of the walls of a preliminarily manufactured screw groove with a depth exceeding that of the toot...
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WO/1981/001672A1 |
The tap comprises a groove-forming stage (1) with a shank (2) carrying a thread-forming stage (3) the pitch of projections of which is equal to the pitch of projections of the groove-forming stage (1), whereas the projections of the thre...
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WO/1981/000365A1 |
A method of manufacturing a resilient screw thread with a closed helical cavity inside its profile comprises plastic deformation of the walls of a screw groove preliminarily manufactured by means of a thread-rolling tool (2). The screw g...
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WO/1981/000094A1 |
A roller of conveyer having the form of a hollow cylindrical casing (1) with perpendicular butt-end walls (2) provided with semiaxles (3) for bearings. The butt-end walls (2) and the semiaxles (3) are made solid with the hollow cylindric...
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WO/1980/002810A1 |
A forming leveller establishes one or more datum or reference planes (227, 226, Figs. 7, 9 and 10, for example) to facilitate subsequent roll forming. The reference planes may be established on the same side or opposite sides of the stoc...
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WO/1980/001886A1 |
The machine for drawing a thread of bolts has two drawing tools (1, 2); one of the tools (1) is attached to a reciprocating carriage, the other tool (2) being fixed against a stop (4). Between the drawing tool (2) and the tool support (3...
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WO/1980/000425A1 |
A thread forming screw (11) having a helical thread (18) and a tapered lead-in section (14) with a polygonal cross section is formed from a conventional blank (24) by rolling the blank between a pair of thread rolling dies (70) having me...
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JP2024091237A |
[Problem] The present invention discloses a multi-roll system inclined continuous rolling forming method for a stepped shaft having a large area reduction rate, which includes a step in which a part pushing device pushes the rolled part ...
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JP2024088203A |
The present invention has an object to provide a gear rolling unit using a rolling tool for gear processing that forms high-precision internal gears with high efficiency, particularly with small modules. SOLUTION The gear rolling unit 10...
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JP2024088204A |
The present invention provides a rolling tool for cutting an internal gear that efficiently rolls an internal gear with a small module (for example, a module of 1 or less), and a rolling method for an internal gear using the rolling tool...
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JP7496482B1 |
The present invention provides a method for suppressing twisting of deformed steel bars, which is capable of producing deformed steel bars that are free of twists along their entire length. [Solution] A deformed steel bar R, on which pro...
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JP7496106B1 |
The present invention provides an aluminum alloy screw using a 6000 series aluminum alloy suitable for recycling, which has sufficient mechanical properties and can be used for fastening in automobile parts and other applications where h...
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JP2024521913A |
A method is described for manufacturing a profiled profile body by cold working a workpiece (1) with a longitudinal axis (Z) and, in a machining area (11), a for example cylindrical outer surface (11a) extending along the longitudinal ax...
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JP7490627B2 |
A harmonic gear device (1), comprising a rigid internal gear (2), a flexible external gear (3), and a wave generator (4). The wave generator (4) has a non-circular cam (41), which is rotationally driven by taking a rotation axis as the c...
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