US962058A

US962058A - Manufacture of plates of sheet metal and bands.

Info

Publication number: US962058A
Application number: US39757807A
Authority: US
Inventors: Arnold Schwieger
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-10-15
Filing date: 1907-10-15
Publication date: 1910-06-21
Anticipated expiration: 1927-06-21

Description

A. SGHWIEGER. MANUFACTURE OF PLATES 0F SHEET METAL AND BANDS.

APPLICATION FILED OCT. 15, 1907. 962,058, Patented June 21, 1910.

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Specification of Letters Patent.

Patented June 21, 1910.

To all whom it mayconcem: I

Be it known that I, ARNOLD Sonwmona, engineer, a subject of the German Emperor, and residing at No. 36 Stralauer Allee, Berlin, in the Kingdom of Prussia and German Empire, have invented certain new'and useful Improvements in the Manufacture of Plates of Sheet Metal and Bands, of which the following is a s ecification.

This invention re ates to im rovements in It consists in first manufacturin from the metal block a pipe and in cutting the same open While it is still in the matrix, or after it has come out, and in spreading or rolling it out into a plate or band. The cutting can be eflected by providing the matrix, or the core-bar, with one or several knife-like ribs, or in arranging on the outside, in front of the opening of the matrix, a. circular saw. In the first case the ipe formed in the matrix is at once divide by the knife-like ribs, so that it leaves the press as a gutter, which is then spread out by the rollers and uniformly flattened.

The present invention relates particularly to the matrix or die element of the machine and is intended as a further improvement over that arrangement which forms the bases of my patents bearing the numbers 861,194 and 878,092.

The drawing illustrates a form of construction of the 'press used in this process, in which" Figure 1 is a side elevation part1 in'sec ow two tion; and Figs. 2 t0'5 (inclusivegns different forms of theslittingives connected with the core-bar.

The driving-gear for the press-stem 10 and the core-bar 11 is omitted in Fig. 1 for the sake of simplicity. The frame 12 is provided with the press-cylinder 13, with the exchangeable matrix 14 and, at the upper end, with a preferably hydraulic cylinder 15, whose piston 16 carries the so-calledmonkey or rammer. On the rammer is arranged a bracket 18 carrying an electromotor 19 which drives a roller 20 journaled in the fork of the rammer. The rotary movement of the press-roller 20 can thus proceed uniformly Applicatlon flled October 15, 1907. Serial No. 397,578.

' independent}; of its height, and also at any desired spee In front of the opening of thematrix is arranged a press-table 21, in which there is journaled an adjustablearm 22 pivoting on 23, which carries at one end-the counterpressure roller 25 and at the other the motor 24 driving the latter. The matrix 14 may be of the cross-section shown in Figs. 2 and 3 or Fig. 4. i

In the form of construction according to Figs. 2 and 3 the core-bar 11 is pointed at its front end and provided with the knife-like rib 26, which preferably. partly enters into a cut provided in the matrix in order to make sure that the pipe is properly cut. The deeper the core-bar enters into the wall of the matrix the thinner will be the pipe and the sheet-metal.

In the form of construction according to Figs. 4 and 5 the end of the core-bar working" in the matrix .is cylindrical. On the other hand one or several knives 26 have been inserted which set against the matrix, and in this way cut the pipe. hen the pipe 27, after it has been formed and slit, leaves the matrix it runs upon the pressroller 25 and is spread out and pressed by the press-roller 20, which is lowered by means of the

driving apparatus

15, 16. As the two rollers 20 and 25 rotate in opposite directions they effect a reliable stretching of the metal. The speed of the rollers depends, of course, on that at which the metal leaves the opening of the matrix.

In the form of construction ofthe press shown in the drawing electromotors have been provided for driving'the press-rollers. They may, of course, be driven in any other way without changin thereby the essential feature of the invention, the two press-rollers may likewise be moved up and down by other means than those mentioned.

through and a mandrel with ih the cyllnder The forefohg s ification signed et Bert ozhrgvi ea $311 a taperedf exild lying Wlthig Im the 2n day o ctober 1907.

retri opemng o t e matrix sai mandrel having a cutting member mo unted ARNOLD SCHWILGLR' 6 thereon adjacent ite ta pered end adapted to In presence of two witnesses:

slit the tube as it 18 expressed through the WOLDEMAR IIAUPT,

cylinder by the piston. Hlmnr Harms.-