US669523A - Needle-loom. - Google Patents

Description

No. 669.523. Patented Mar. I2, MM.

0. HALLENSLEBEN. NEEDLE LOOM.

(Application fll'gd Jan. 24, 1900.)

',(No Model.) 3 8haeta8ho|at l.

m: Noam! Finns co wo'rmlwa, WASHINGTON. n. c.

No. 669,523. Patented Mar. I2, 1901.

0. HALLENSLE'BEN.

NEEDLE LOOM.

(Application filed Jan. 24, 1900.) (No Model.)

3 Shoots-Sheet 2.

OTTO HALLENSLEBEN, OF HILDEN, GERMANY.

NEEDLE-LOOM.

SPECIFICATION formingpart of Letters Patent No. 669,523, dated March 12, 1901. Application filed January 24, 1900. serial No. 2,692. (No model.)

To aZZ whom it mayconcern:

Be it known that I, OTTO HALLENSLEBEN, a subject of the King of Prussia, German Emperor, and a resident of Hilden, in the Province of the Rhine, German Empire, have invented certain new and useful Improvements in Needle-Looms, of which the following is an exact specification.

-The present invention relates to improvements in and connected with looms, more especially to a device for drawing off the weftthreads as the same are laid into the shed; and it consists of providing a pair of tongs feeding the weft-threads anda pair of tongs drawing off the same, the said tongs being provided wit-h inclined projections so arranged that, after the weft is laid in, the jaws of the tongs for drawing off the weftthreads are opened for the purpose of gripping the threads, while the jaws of the latter are opened in the right moment for the purpose of liberating the thread cut by a pair of scissors.

My invention is illustrated in the accompanying drawings, in which Figure 1 illustrates in front View a loom embodying my invention. Fig. 2 is atop view of the pair of tongs serving to draw off the weft-threads. Fig. 3 illustrates in top and side view the pair of tongs for drawing the weft-threads across the loom. Figs. 4 to 7 illustrate different working positions of the tongs. Fig. 8 illustrates in side view the mechanism for actuating said tongs, and Figs. 9 and 10 are sections through c d and cf of Fig. 8.

In the drawings, 7" r illustrate two horizontal rods sliding within a guide provided in a lateral prolongation of the lathe and moved into and out of the shed in known manner by the levers s s, connecting-rods u u, lever 12, connecting-rodw, and leverm, actuated by the eccentric 25. To the latter movement is im parted by worm-wheels w 10 of which w is arranged upon the crank-shaft 20 which is driven by a suitable motor, and 10 is arranged upon the shaft of the eccentrics. The removal of the horizontai rods from the shed takes place in the moment when the weftthreads are laid into the same. The front extremities of the rods 1-1" are provided with gripping-tongs the jaws of which are rotatable. The pair of tongs fixed to the right-hand horizontal rod 1" is opened by means of lovers 19, adapted to rotate upon a pivot 12*. The levers are influenced by a cam o, pinned to the shaftp so that at certain intervals the levers p, provided with rollers 10", close on their upper parts, pressing upon the tongs b, and open again, owing to the tension exercised by a helical spring fixed to the levers p (not shown in the drawings) after the pressure of the cam has ceased. Upon the shaft p a rope or chain disk p is p1nned,which is geared to the crank-shaft 20 by means of ropes or chains h and g, rope or chain disks 10 19 arranged upon the rod 12 and a rope or chain disk p,pinned to the crank-shaft 20 A double-armed lever m n, arranged above the horizontal rod-"r, is influenced by a cam Z in such a manner that the arm m is lowered when the tongs b are opened by the levers 19, so that the Weft-thread h, wound upon a spool c and guided through eyesf e and a narrow tube 01, attached to the arm m, can be inserted between the tongs b. The movement of the horizontal rod r causes the pair of tongs b to grip the thread and to advance up to the middle of the fabric. At the same time the horizontal rod 1, together with its pair of tongs a, is moved into the shed from the opposite side, takes the weft-thread off from the pair of tongs b, and in the withdrawalof the rods 1" and 1'' draws the weft completely across the shed.

In order to facilitate the gripping and the freeing of the weft-threads by the tongs a and I), both tongs are provided with wedgeshaped projections, as illustrated in Fig. 3.

Fig. 4 shows the manner in which this gripping-finger of the pair of tongs 1) opens the pair of tongs a, whereupon during the further sliding movement the same closes again, Fig. 5, and above the pair of tongsb takes the weft-thread. As the tongs are removed from each other the gripping-fingers of the tongs a open the mouth of the tongs b, Fig. 6, the latter liberating the weft-thread, which now can be drawn across the shed by the tongs a.

The extremity of the weft-thread is cut at the right moment by means of a pair of scissors y, which are operated by means of acam ,2, arranged upon a shaft 7t, geared to the shaft 19 by bevel-wheels,while the tongs a are caused to liberate the extremity of the weftthread when leaving the shed by two stops y, fixed upon the lathe in the manner illustrated in Fig. 2.

The apparatus for actuating the pair of tongs is illustrated in Figs. 8 to 10 of the accompanying drawings. At each side of the lathe I provide guide-pieces a b for replacing the shuttles generally employed. These guide-pieces 0/. b are provided with a recess receiving the connecting-piece r This connecting-piece r is altered in position by the levers, to which movement is imparted from a mechanism forming a part of the loom, as shown in Fig. A recess is cut into the piece r ,in which recess a rack E is adapted to move. A roller F lends support to the rack and at the same time forms the bearing for the pair of tongs a. The left-hand extremity of the piece 1" carries a frame A, inclosing a toothed wheel J and a chain-wheel J. The toothed Wheel J engages into a rack G, fixed to the frame of the loom, while the chain-wheel is connected with the second chain-wheel H, which also is inclosed by a frame fixed to the connecting-rod 1' by means of a chain running over both wheels. The chain-wheel H is rigidly connected with a toothed wheel J ceases engaging into the rack E. If now by means of the lever s the connecting-piece r is displaced, the toothed wheel J engages into the lower rack and is thereby rotated, and owing to the chain also imparts rotation to the toothed wheel H, which engages into the rack E, removing the same from the guide 0" so that the Whole apparatus is extended in the manner of a telescope.

Having thus fully described the nature of this invention, what I desire to secure by Letters Patent of the United States is In a device for drawing off the weft-threads, the combination of a pair of tongs b feeding the weft-threads, a pair of tongs a drawing 01f the threads, both tongs being provided with wedgeshaped gripping-fingers, and means for operating the pairs of tongs, so that the tongs meet in the middle of the shed and there transfer the thread from one pair of tongs to the other, as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

OTTO HALLENSLEBEN.

Witnesses:

WILLIAM ESSENWEIN, EMIL HOETTE.

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