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Patent Searching and Data


Matches 651 - 700 out of 8,830

Document Document Title
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
JP2017029998A
【課題】本発明は、加工歯の損傷を抑制し、 高い加工精度を長期的に維持することのでき る転造ダイスを提供する。【解決手段】本発 明の転造ダイスは、平ダイス転造方式に...  
JP2017024031A
[Subject] A forming process of a rotation transmission device by die-casting is provided. [Means for Solution] The 1st step to which the 1st metallic mold arranged at the upper-and-lower-sides side is made to fix a disk in which a hole i...  
JP2017020555A
【課題】鋼材から熱間転造用の歯車素材10 を用意し、その歯車素材10の表面に浸炭層 12を形成し、その後、熱間転造による塑性 加工を施して所定形状の歯形を持つ歯車...  
JP2017019010A
【課題】成形ローラの干渉等による成形形状 の制約を緩和し、成形形状に関する設計の自 由度を高くする。【解決手段】バックアップ ローラ18に設けられた位置決め溝42...  
JP6068290B2  
JP6061312B2  
JP2017006963A
[Subject] Flow forming molding equipment and a flow forming method which can suppress modification of a design side effectively are provided preventing with a crack to a design side of a material part for disks. [Means for Solution] In f...  
JP6057943B2  
JPWO2014080589A1
加工コストや部品点数を低減できる変速機を 提供することを解決すべき課題とする。入力 軸と、出力軸と、前記入力軸に一体に設けら れた複数の入力軸側ギヤと前記出力軸に...  
JPWO2014080590A1
加工コストや部品点数を低減できる変速機用 出力軸及び変速機用回転軸の製造方法を提供 することを解決すべき課題とする。入力軸と 、出力軸と、前記入力軸に一体に設けら...  
JP2016221562A
[Subject] Even if it makes thickness of a metal plate thin, a thickening processing device processible so that it may become the thickness for which a perimeter portion of the metal plate concerned asks is provided. [Means for Solution] ...  
JP2016223819A
[Subject] While making slight change of a dice detectable, a load cell used as a form-rolling pressure sensor which can reduce a noise is provided. [Means for Solution] In between an opposed face which, as for load cell 10, a move dice a...  
JP2016223532A
[Subject] Even if big tensile load is added to a joint part, modification of a stop projected rim is controlled and a fluid feeding pipe excellent in the extraction prevention nature of a pipe is provided. [Means for Solution] Having sto...  
JP2016215370A
[Subject] A new tool which creates a female screw is specified. [Means for Solution] :a tool which has the following features rotates a screw thread creation tool which forms a screw thread in work piece around a tool axis (A). b) A tool...  
JP2016217510A
[Subject] While being able to thrust easily with low torque also to hard wood, a wood screw in which clamp capacity after screwing is also fully obtained is provided. [Means for Solution] In wood screw 1 which has tapered shape end part ...  
JP2016215211A
[Subject] A screw thread is formed so that a screw may begin from a predetermined position appointed beforehand. [Means for Solution] A form rolling device carries out form rolling of the screw thread to a blank which has a detected part...  
JP6042499B1
[Subject] A forming process of a rotation transmission device by die-casting is provided. [Means for Solution] The 1st step to which the 1st metallic mold arranged at the upper-and-lower-sides side is made to fix a disk in which a hole i...  

Matches 651 - 700 out of 8,830