DE77900C - Method of making damas-. one barrels and pipes - Google Patents

Description

IMPERIAL

PATENT OFFICE.

So far the damaskirten barrels and pipes have been made in such a way that one can do that Ribbon or rail made of damask metal in a spiral on a very thin, to one Pipe bent sheet metal, the so-called. Lining, wound up. This lining served the damask ribbon as a base and support during forging. The one made in this way The barrel or the pipe always contains between the damask and the lining or in the curvature line the ribbon spiral small coal or ash particles or other impurities, their Presence in the body or on the surface of the metal the resilience of the The barrel or barrel is impaired and often leads to difficult and costly repairs gives, yes, often compels, to give the whole piece to the committees. In addition, the fodder has the disadvantage that it is often in the The inside of the finished pipe leaves scales.

The present process avoids the occurrence of these impurities in the metal, in that the feed is no longer available and the rake is not exposed to contact with those foreign bodies.

The new method consists in that twisted or non-twisted bands, strips or rails: of damask metal α of round, semicircular, square, trapezoidal or other cross-section lengthwise around a solid rod or core b, Fig. I Iron, steel or damask grouped or (Fig. 2) sector-shaped, triangular or other damask rails c packed lengthwise into a bundle and the whole thing enclosed in a sheet metal jacket or held together by simple wire loops.

The damask rails combined with or without a core to form a shell are advantageous heated in a flame furnace and then on the rolling mill, in the press or under the hammer curly.

However, one can also heat the lobes in a tail fire or on any other other way, e.g. B. with the help of electricity and so on. Also can The individual parts of the shell have been torn together by hand in the previous manner.

In Fig. 3 a curved barrel is shown in two parts in a longitudinal view. The number the longitudinal rails can be varied as desired.

The solid rod or core b, Fig. 1, can be cylindrical, conical or prismatic, the same or different over its entire length. The damask rails can also have the same or different cross-sections along their entire length.

The method is said to have the advantage that the hooks are attached to the full damask barrel.

can schweifsen connecting the barrel with the Schlofskasten _v, so the hook with the barrel DAF constitutes only a single homogeneous piece. Likewise, in the manufacture of damask tubes, any desired piece can be welded onto the full tube, which then only forms a single homogeneous piece with the tube.

Claims (1)

Patent claim: Process for the production of damascirter barrels and tubes, characterized in that Ribbons, rails and the like made of damask metal in a bundle or around a solid rod or core made of iron, steel or damask folded lengthwise, curved and finally to be drilled out. For this purpose ι sheet of drawings.