Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2115025A
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Individual
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Individual
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Priority to GB2115025ApriorityCriticalpatent/GB255662A/en
Publication of GB255662ApublicationCriticalpatent/GB255662A/en
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
Abstract
255,662. Pickett, F. N. Aug. 24, 1925. Metal pipes and tubes.-A hollow ingot of steel is made by centrifugal casting and then drawn through a die or dies to produce a tube of the desired size and finish. The heat of the cast ingot may be conserved, increased or decreased before drawing, or the ingot may be cooled and then reheated. Specification 127,746 [Class 83 (i), Casting &c. metals.], is referred to.
GB2115025A1925-08-241925-08-24Improved process for the manufacture of steel tubes
ExpiredGB255662A
(en)
Method for producing by hot extrusion process elongated articles as tubes, rods, bands from iron, steel and other metals and alloys capable to be extruded at over 900 c.