US643390A - Apparatus for scouring or equalizing warp or weft threads. - Google Patents

Description

No. 643,390. Patented Feb. 13, I909.

W. G. ANDRIESSEN.

APPARATUS FOR SCOURING 0R EHUALIZING WARP 0R WEFT THRTEADS.

(Application filed Mar. 3, 1899A (No Model.)

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\VILHELM GUSTAV ANDRIESSEN, OF CREFELD, GERMANY.

APPARATUS FOR SCOURING OR EQUALIZING WARP 0R WEFT THREADS.

SPECIFICATION forming part of Letters Patent No. 643,390, dated February 13, 1900. Application filed March 3,1899, Serial No. 707,640. (No model.)

To (0Z5 whom it may concern:

Be it known that I, WILHnLM GUSTAV AN- DRIESSEN, a subject of the Emperor of Germany, and a resident of Crefeld, in the Elm pire of Germany, have invented certain new and useful Improvements in Apparatuses for Securing or Equalizing Warp or Weft Threads in lVoven Fabrics, of which the following is a specification.

This invention relates to an improved apparatus which may be used with weavers looms for the purpose of scouring or equalizing the warp and Weft threads of silk and half-silk fabrics in such a manner on the 100111 that their position to one another becomes equal. There are already different arrangements for use with looms for scouring fabrics-as, for instance, those of the German Patents Nos. 90,230, 94,332, and 98,729; but all these known arrangements have the fault that they scour the weft-thread but little or not at all, while by the present arrangement both the warp and the weft threads are scoured with one and the same scouring-knife. In the present invention this is obtained by means of a scouring-knife which is given a to-and-fro movement and operates on the under side of the fabric and which is mounted at an angle of about forty-five degrees to the length direction of the fabric; but in order not to damage the fabric on its longitudinal edges or selvages when the knife passes un der the same an arrangement is provided for lifting the edge of the fabric when introducing the knife.

The annexed drawings represent a form of the apparatus shown as an example.

Figure 1 is a front view of the apparatus, showing the driving mechanism. Fig. 2 is a side view of Fig. 1. Fig. 3 shows an enlarged view of the knife-carriage and the device for lifting the edge of the fabric. Fig. 4 is a plan View of the knife-carriage.

On the guide-bar 9, arranged on the frame of the loom underneath the fabrics travel, a carriage 10 is arranged, movable to and fro, which travels on the guide-bar by its rolls 11. This carriage carries the scouring-knife 13, fastened in cheeks 12, the top end of the knife which operates on the fabric being turned or twisted at an angle of about forty-five degrees to the length direction of the latter. The carriage 10 is moved to and fro as follows: By a shaft-for instance, the shaft 14-and under the action of beveled toothed wheels 15, a crank 16, and driving-rod 17 a toothed se ment 18 is given a rocking movement. The segment engages with a toothed wheel 20 on a shaft 19. On the shaft 19 is a pulley 21, which carries a cord or chain 22 or the like. The cord 22 or the like is guided around rollers 23 and is connected at its ends at 24: with the carriage 10. If, therefore, the crank 16 is put into rotation by the driving device 15 and the segment 18 is thereby given a swinging movement, the pulley 21 turns alternately in the forward and in the backward direction, so that the carriage 10 moves to and fro and the knife 13 scours the fabric 25.

The device for lifting the edges, as shown in Figs. 1 and 3, is arranged as follows: A quadrant 33 is pivoted on the carriage 10 and its are 34 presses under the fabric. On the guide-bar 9 a hook 36 is pivoted at 27 and held in its normal position by a spring 28 and a pin 29. The quadrant 33 is provided with a shoulder 35, which on the outward movement of the carriage moves under the hook 36, but which at the entrance of the carriage is caught by the hook, as shown in Fig. 3, so that the are 34 lifts the fabric edge 32. When the carriage has moved farther on in the direction shown by the arrow, then the are 34 is brought to the position shown in dotted lines, and when the carriage arrives at the other end of the guide-bar the are 34 is returned again by a similar hook for the purpose of lifting the other web edge in a similar manner.

Instead of the scouring-knife being bent to about forty-five degrees a knife arranged in the carriage 10 and movable around its axis can be used.

Naturally the above-described arrangement can be mounted and used separate froma loom.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. An apparatus for scouring or equalizing the warp and weft threads of woven fabrics such as silk and half-silk fabrics comprising a guide-bar, a carriage mounted on the guidebar, and a knife having its edge arranged obliquely to the length of the fabric, and means whereby the carriage is moved to and fro; 5 substantially as described.

2. The combination of the guide-bar having hooks pivoted thereto near its ends, a carriage mounted on the guide-bar, means for reciprocating the carriage, a knife fixed to the car- IO riage, and a quadrant for lifting the edge of the fabric, having an arc and a shoulder at the side thereof, and pivoted to the carriage; the hooks being positioned to engage the shoulder of the quadrant for reversing the latter as the carriage returns; substantially I 5 as described.

In Witness whereof I have hereunto set my hand in presence of two Witnesses.

WILHELM GUSTAV ANDRIESSEN. Witnesses:

G. ANDRIESSEN, M. KLEMPER.

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