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JPS5782422U |
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JPS5775922U |
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JPS5771833U |
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JPS5718886B2 |
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JPS5716223U |
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JPS5716224U |
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JPS5716226U |
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JPS5716225U |
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JPS5711621U |
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JPS5711620U |
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JPS56175127U |
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JPS56160828A |
PURPOSE: To enhance the formability of working and the productivity of working by hammering the work pipe at high speeds with a hammering rod during its feed moving. CONSTITUTION: When the leading end part of the work pipe W is passed th...
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JPS56154226A |
PURPOSE: To manufacture a spiral pipe of optional lead angle through a simple operation of an extremely simple construction, by providing a projection in one of the second couple of wheels of three couples of upper and lower hyperboloid ...
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JPS5648411Y2 |
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JPS5646449B2 |
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JPS5641861Y2 |
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JPS5641330B2 |
A machine for shaping elongate strips, especially of metal, into a variety of profiles comprises a cascade of working stations in which the strips are subjected to progressive deformation between rollers, some or all of which may be driv...
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JPS5640990Y2 |
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JPS56117827A |
PURPOSE: To easily adjust pipe reducing diameter as desired during working by putting the plural balls rotating on the outside circumference of a metallic pipe in the planetary state into the cavity of a radius decresing gradually in the...
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JPS56114568A |
PURPOSE: To form a collar, especially an angular collar, by installing a convexed section at the end of opening of the 2nd pipe holding hole of the 2nd equipment which is to be fitted to the concaved section at the end of opening of the ...
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JPS56114504U |
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JPS56102322A |
PURPOSE: To make stirring of refrigerant good and improve heat transmission characteristics by mounting rolling wheels having treads and grooves to a holder in a manner as to revolve, and press-fitting the holder into a pipe thereby prov...
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JPS56100297A |
PURPOSE: Zig-zag grooves are formed in the heat exchanger pipe inner surface to promote an agitation of coolant and to provide a performance of heat exchanging operation. CONSTITUTION: Inner groove working device having a radially arrang...
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JPS5633170B2 |
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JPS5686640A |
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JPS5671527A |
PURPOSE: To inexpensively form flat steel plates etc. having effect in sealing and coupling by passing a hot blank material between a revolving forming roll provided with diagonal projecting flights in one piece on the outside circumfere...
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JPS5659542A |
Disclosed is apparatus for forming an annular groove or recess in the external surface of a pipe section at a predetermined distance from the open end of the pipe. The grooving apparatus comprises a cylindrical body with a tapered extern...
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JPS5621486B2 |
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JPS5647222A |
PURPOSE: To mass produce by the simple operation without degrading the straightness and revolutional balance of the worked product, by holding the material with the circumferentially grooved die segments, and by forming the annular proje...
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JPS5612375B2 |
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JPS564323B2 |
An apparatus for manufacturing heat transfer tubes for use in evaporators and coolers for freezers, air conditioning units, refrigerators, and the like, with close machining tolerances. It forms cavities, with small openings communicatin...
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JPS566734A |
PURPOSE: To obtain a groove-type shape material, which has hitherto been obtained in two processes, in one process by bisecting the male die of the same shape as the inside circumferential shape of the groove constituting the molding die...
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JPS561717U |
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JPS5555857Y2 |
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JPS55177928U |
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JPS55128337A |
PURPOSE: To form a highly precise oil groove etc. on the spherical surface pedestal of connecting member composing spherical surface joint, by forming the groove preliminary broadening the width excessively anticipating the transformatio...
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JPS5536408B2 |
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JPS557093B2 |
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JPS5514140A |
PURPOSE: To let the peripheral wall of can mouths be pressure-contacted and detached from the inside and outside thereof and make the formation of can beads easy by combining a convex die opposing to an annular concave groove die. CONSTI...
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JPS555200A |
In a method of producing hollow workpieces from a length of pipe, for example ball housings or races, a length of pipe (6) is located in a sealed calibre die (4), and axial pressure and radially directed rolling forces are applied as the...
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JPS5439197B2 |
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JPS54137469A |
PURPOSE: A rotating upper shape is pressed down onto a metal plate placed on a long grooved lower plate, generating enough frictional heat to plastically deform the metal plate into a desired depth so as to form a long wave depression. C...
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JPS5430669B2 |
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JPS54123563A |
PURPOSE: To manufacture the rod of irregular section in which the thin walled middle portion is provided with good surface condition, by previously forming a longitudinal continuous groove in the middle portion of the metallic rod blank,...
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JPS5429463B1 |
A tubular container body has a reinforcing bead indented into and circumscribing the container body wall. A plurality of generally longitudinal ribs are formed in the container body wall within the bead indentation. The ribs are formed d...
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JPS54101746A |
PURPOSE: To easily work the bar of deformed section shape without generating defective shape, by feeding the material to be worked into the space between the die provided with a wedge type projection and the flat die at a constant pitch,...
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JPS5422941B2 |
An internal groove forming apparatus for heat exchanging pipes, having a cylindrical holder adapted to be loosely fitted in a heat exchanging pipe in concentric relationship, and a plurality of groove forming rolling tools arranged on th...
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JPS5422755Y2 |
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JPS5422756Y2 |
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JPS5421308B2 |
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