US2020940A

US2020940A - Manufacture of wire

Info

Publication number: US2020940A
Application number: US694396A
Authority: US
Inventors: Gassen Josef
Original assignee: Schloemann AG
Current assignee: Schloemann AG
Priority date: 1933-03-31
Filing date: 1933-10-20
Publication date: 1935-11-12
Anticipated expiration: 1952-11-12

Description

MANUFACTURE OF WIRE Qriginal Filed March 31, 1935 INVENTORQ J05 GASSf/V A TTORNEY Patented Nov. 1935 MANUFACTURE OF WIRE Josef Gassen, Dusseldorf-Oberkassel, Germany,

assignor to Schloemann- Aktiengesellschaft, Dusseldorf, Germany, a corporation of Germany Original application March 31, 1933, ,Serial No.

663,751. Divided and this application October 20, 1933, Serial No. 694,396. In Germany June 3 ClaimS-, (Cl. 14821) My invention relates to the manufacture of wire and more especially wire known as waterwire such as principally used in the production of bed-springs, and the object of my invention is to produce a wire of this kind having a uniform temper, such as described in my application, Serial No. 663,751, filed on March 31, 1933, of which application this is a division.

There are in use several methods of manufacturing such wire. According to one of the most widely used methods, one permits the wound-up wire bundle to drop from the spool-basket into a water tank. Another method consists in this that the wire on its way from the wire-roll to the spool passes through the cooling water on the counter-current principle. Also, water has been admitted during the winding operation to the interior of the spool-basket through large pipes. Or, water has been admitted to the interior of the spool-basket after the winding has been finished so as to chill the wire bundle before its removal from the spool-basket.

While by all these various methods the wire has been more or less cooled, there has been considerable complaint, that the cooling does not proceed uniformly with the result that the quality of the finished wire is thereby greatly affected.

To overcome this serious drawback, I have devised a novel method, whereby the wire is very uniformly cooled, so that a wire of very high quality is produced. This object I attain in directing against the wire bundle in the spool basket a large number of fine water-jets, the cooling effect of which is increased by the centrifugal action produced by the rapid revolutions of the spoolbasket. In this manner, the cooling water is continually brought into contact with the wire at a very large number of places. Because of the effect of the centrifugal action referred to, a portion of the cooling water is forced outwards through the various convolutions of the wire in the spool-basket cooling also the latter as Well as the surrounding wall, while the major portion,

due to the same centrifugal action, is upwardly displaced along the outer wall of the spool-basket to enter a gutter in the cover of the spool-basket in which cover the flow of the cooling water is reversed so that it flows back into the spool-basket, to again impart its cooling effect to the bundle of wire in the basket.

On the annexed drawing, on which by way of illustration, I have shown a means for practising my invention, the single figure shows said means partly in central vertical section.

At I is shown the spool-basket secured to a rotatable vertical shaft 2 driven from any desired source of power. The space in which the wire shown at 3 is wound up, is formed by two walls, to wit the'inner wall 4 and the outer wall 5. In its center, the spool-basket is provided with a hollow space 6.

The inner wall 4 of the spool-basket is provided with numerous bores I forming spray-nozzles, while similar bores 8, but of a smaller cross-sectional area than the bores I, are provided in the 10 outer wall 5. The rotatable spool-basket I is enclosed in a stationary casing 9 carried by a standard II). The casing is provided with an inclined bottom shown at I I, in which at I2 is provided a circular gap. 15

While the spool-basket containing the wouhdup wire is being rapidly rotated, cooling water is admitted through the supply-nozzle I5 to the inner hollow space 6. The water striking the hub-cap I1 is spread in all directions. Be- 30 cause of the effect of centrifugal action, produced by the rapidly revolving basket I, the water enters the same through the numerous small bores 1 in the form of a spray penetrating between the various convolutions of the wire 3. A portionof the cooling water passes outwardly through the smaller bores 8 in the outer wall of the basket and fiows down in the space between said outer wall and the wall of casing 9 cooling also the latter and escaping through the circular gap I2, flowing down over the standard III which is thus likewise cooled by the cooling water. The major portion of the water, because the bores 8 are finer than the bores I, because of the centrifugal action, is forced upwards as shown at I8 entering the inverted gutter I4 in the annular cover I3. The gutter is so shaped, that the flow of the Water is thereby reversed, so that the water flows back into the spool-basket to again act as cooling water 5 for the wire in the basket. In this manner, a very uniform cooling of the entire bundle of wire is effected.

Obviously, the supply of water through the supply nozzle I5 can be regulated, depending 55 of the coil, and simultaneously rotating the coil rapidly in its own plane to increase the coil penetrating effect of the liquid.

2. In the manufacture of wire, the method of quenching the same which comprises directing jets of a cooling liquid from points within a coil of wire outwardly against the inner side of the coil, simultaneously rotating the coil rap-" idly to cause the liquid to flow outwardly through the coil, and returning at least some of the liduid from the outer side to the inner side of the coil and again directing it through the coil.

3. In the manufacture of wire, the method of quenching the same which comprises directing jets of 'a cooling liquid from points ,within a coil of wire outwardly against the inner side of the coil, simultaneously rotating the coil rapidly to cause the liquid to flow outwardlythrough the coil, directing to Waste part of the liquid 10 h after it has passed through the coil, and returning theremainder of the liquid to the inner side of the coil and again directing it against the inner side of the coil.

JOSEF GASSEN.