DE183803C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- M 183803 CLASS GROUP Tb.

ALEXANDER POGANY in BUDAPEST and HEINRICH LAHMANN in KÖMOTAU.

The invention relates to a device

for corrugating pipes, with the corrugations between the pipe to be corrugated and the generating pressure rollers arranged in several simultaneously working roller heads a relative movement takes place and the - roller heads on different parts of the pipe act.

In the present invention, ίο two roller heads are used, which are displaced in opposite directions by a spindle provided with a right-hand and left-hand thread and rotated by means of two gear ratios.
The invention is shown in two exemplary embodiments in the drawing.

In the arrangement shown in FIG

• Two roller heads a ¹ and a ¹ are used, which by the right-hand and left-hand thread of the shaft b in different directions, ie

either both towards the center or both towards the ends of the pipe. The tube c to be corrugated is fixed.

The arrangement here is such that the roller head a ¹ rotates in the opposite direction as the roller head α ^2. This is achieved in that the gear ratio of the head a ^{1 contains} one more wheel g than that of the head α ² .

The gear wheel e sitting on the shaft d engages in the wheel g and this in the wheel h ^{1 of} the roller head a ¹ . In the case of the roller head α ² , the gear / shaft d 35 engages

directly into the gear h ^{2 of} the roller head α ² .

The rotation of the roller heads a ¹ and d ² takes place from the shaft d by means of the gears e or /.

As a result of this arrangement, the roles of both heads then run in spite of their opposing ones Longitudinal shift in rectified screw threads.

In the event that pipes are to be provided partly with right-hand and partly with left-hand shafts, the gear transmission of the head a ^{x can be} brought into agreement with that of the head d ² in the present arrangement, so the intermediate gear g can be removed so that both roller heads rotate in the same direction while they are moved in opposite directions. This type of pipe corrugation can also be changed in such a way that the pipe rotates between the rollers of the roller heads, these being displaced in different directions in the longitudinal direction, but not being rotated.

The embodiment shown in FIG. 2 gives an example of this.

The rotation of the tube c firmly connected to the gears i takes place from the shaft d by means of the gears k, k ^l . The roller heads a ^l and d ² are guided on the screw spindle /, which receives its rotation by means of the gear wheel m. When rotating the

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The reel heads are pipe. either both against the middle or both against the Ends of the corrugated. Pipe moved,

Claims (2)

Patent Claims: ι. Device for corrugating pipes, in which a relative movement takes place between the pipe to be corrugated and the one generating the waves - in several simultaneously working roller heads ίο arranged pressure rollers and the roller heads act on different parts of the pipe, characterized; that the tube to be corrugated is stationary, while two roller heads are displaced in opposite directions by a spindle (b) provided with a right-hand and left-hand thread and rotated by means of two gear ratios (e, g, h ¹ and f, h ² ) . 2. Apparatus according to claim 1, characterized in that the to be corrugated Tube is rotated and thereby the rollers in the required for the manufacture of the shafts Movement can be displaced. 1 sheet of drawings.