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Patent Searching and Data


Matches 651 - 700 out of 8,813

Document Document Title
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...  
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...  
JP6043010B1
[Subject] A mandrel which can raise abrasion resistance more cheaply, a ring roll making machine using it, and a manufacturing method of ring roll products are provided. [Means for Solution] The diameter is expanded by compressing some c...  
JP2016205265A
[Subject] Methods of fabricating the helical spline of the output axis used for torque transmission devices, such as an engine starting system, include some which are depended on form rolling. Although the metallic mold which fabricates ...  
JP6040944B2  
JP6029900B2  
JP6030847B2  
JP2016193454A
[Subject] A process method of suitable Ring rolling mill for stable shape control in ring rolling and ring rolling material is provided. [Means for Solution] Measurement value L of the 1st step to which it is Ring rolling mill provided w...  
JP6024614B2  
JP2016190253A
[Subject] A cold roll processing method which can make the maximum tension remaining stress of an axis small, and can make the generating position deep is provided. [Means for Solution] A cold roll processing method of the present invent...  
JP6017681B2  
JP6019873B2  
JP6013656B1
Though form-rolling processing is performed, a processing method of a screw which can prevent a projection part from being formed in a screw thread tip part is provided. A screw thread (2A) is formed in cylinder body inner skin (1a) by c...  
JP6009266B2  
JP3206922U
[Subject] A ring roll making machine which can raise abrasion resistance more cheaply and simply is provided. [Means for Solution] Forming rolls 11 are arranged to the perimeter side of circular work W, mandrel 12 is arranged to the inne...  
JP2016176553A
[Subject] A method that a sheave which improved the abrasion resistance of a wire volume credit slot as much as possible can be manufactured comparatively cheaply is provided. [Means for Solution] Powder 5 consisting of an inorganic subs...  
JP2016175092A
[Subject] Large-scale equipment is not needed but an end screw processing method of a steel rod which can fracture certainly a steel rod fixed to a ferro-concrete structure with a base material is provided. [Means for Solution] A tip por...  
JP2016531007A
The present invention relates to a rolling tool (1) for carrying out roller vanishing processing of a bearing side (2) of a crankshaft (3) which can rotate a center [a crankshaft axis (K) ] which has a vanishing head (4) and a support ro...  

Matches 651 - 700 out of 8,813