US437894A - eutchins - Google Patents

Description

(No Model.) 3 Shaets-Sheet 1.

G. P. HUTOHINS. LOOM IOR WEAVING OARPETS OR BUGS.

Patentedot. 7, 1890.

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G. P. HUTCHINS. LOOM FOR WBAVING GARPBTS 0R BUGS.

Patented Oct. 7, 1890..

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G. F. HUTCHINS.

- LOOM FOR YVEAVING GARPETS 0R BUGS. No. 437,894. Patented Oct, '7, 1890 @mib/woes l 8141104415025' m .ZLML 414. J? Mm /M' A @512; @Hom/:et

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UNITED STATES PATENT OFFICE.

GEORGE F. HUTOHINS, OF IVOROESTER, I\IASSAOHUSETTS, ASSIGNOR TO THE KNOWLES LOOM IORKS, OF SAME PLACE.

LOOM FOR WEAVING CARPETS OR RUGS.

SPECIFICATION forming part of Letters Patent N0.437,894, dated October '7, 1890.

Application filed March 27, 1890. Serial No. 345,519. (No model.)

T0 @ZZ whom it may con/cern,.-

Be it known that I, GEORGE F. HUrcrnNs, a citizen of the United States, residing at Worcester,in the county of Vorcester and State of Massachusetts, have invented cert-ain new and useful Improvements in Looms for IVeaving Carpets and Rugs; and I do hereby declare that the following is a full, clear, and exact description thercof,which, in connection with the drawings making a part of this specification, Will enable others skilled in the art to which my invention belongs to make and use the same.

My invention relates to looms for weaving a class of fabrics which are woven with two Wefts, one weft being a coarse cheap material, generally jute, and the other twisted chenille. The chenille is so made that when it is set in the carpet or rug it makes a figure on each side of the fabric, one side being the facsimile of the other.

The object of my invention is to provide a loom which shall be automatic in its operation 5 and it consists in certain novel features of construction and operation of a loom for weaving carpets and rugs of the class referred to above, as will be hereinafter fully described, and the nature thereof indicated in the claims.

Referring to the drawings, Figure 1 is a sectional view of the inside of the left-hand loom side. Fig. 2 is a detail View, to be described. Fig. 3 is a side elevation of the right-hand loom side. Fig. 4 is a partial plan view of the loom. Fig. v5 is an elevation of the rear part of the loom shown in Figs. l and 3, showing the friction and brake mechanisms; and Figs. 6 and 7 are details showing the adjustable crank-arm on the crank-sh aft.

In the accompanying drawings, 1 is the lefthand loom side; 2, the right-hand loom side; 3, the crank-shaft; 4, the bottom shaft; 5, the breast-beam, and 6 the lay, all as commonly constructed and arranged in a power-loom. The bottom and crank shafts are geared together in the ordinary Way, the gearing being here shown only by the dotted pitch lines 7, Figs. 1 and 5.

The shipping motion of the loom shown in the drawings is the Well-known Knowles locklever shipper, as fully shown and described in Letters Patent No. 197,641, which operates a friction-pulley, as it is convenient to have a brake to stop the loom quickly.

The loom is run with three boxes (see Fig. 1) on each end of the lay. The box motion for the upper two boxes 8 and 9 is positive, and the boxes move up or down, according to the shape of the cam 11. This cam receives motion from the bottom shaft 4. by the gear 12 on the bottom shaft meshing with the gear 13, fast to cam 11 and loose on pin or stud 14. A lever 15 is hung loosely on the stud 1G, fast to the loom side 1. To the arm 17 of the lever 15 is fastened the cord 18, which passes over the pulleys 19 and 2O to the shuttle-boxes in the ordinary way to operate the same.

Vhen the lever l5 is moved by the cam 1l,

the boxes are raised or lowered.

The shipping motion, as previously stated, is the well-known .Knowles lock-shipper applied to a friction-pulley. The shipper-handle 2l is held fast tc the shipper-shaft 22 by the set-screw 23, and the pin 25 in the arm 24. of the shipper-lever works in the slot 26 of the arm 27 of the lock-lever 28, hung on the stud 33 in the usual manner, as fully set forth in the patent before referred to. l

The connector 2Q, pivoted at 30 to the arm 3l of the lock-lever 28, carries the spring 32, which is to complete the motion when the loom is unshipped, and said connector 29 is connected at its rear end with the arm 29', pivoted at its lower end on the loom side and provided With knobs adapted to engage with the grooved hub of the friction-pulley 29, around which the driving-belt (not shown) passes loose on the shaft 30', which is geared to the bottom shaft 4, all in the ordinary way. Said friction-pulley 29 is provided with a frictionface, which is adapted to engage the frictionface on the pulley 31 fast on said shaft 30.

As shown in the drawings, the shipper is locked and the loom is running. The braketreadle Si is of the usual construction, and is pivoted at 31 to the loom side and connected 95 IOO spring-actuated rod 37 by the set-screw 38. The rod 37 is guided and has a bearing in the stand 39, and against said stand butts the spring 40, which is brought to the required state of compression by the adjusting-collar 41. The upper end 42. of the spring-rod 37 is socketed to receive the bar 43, held fast by the set-screw 44. At the upper end of bar 43 is a notch or recess 45. The stand 46 is bolted to the loom side and has an opening 47, through which passes the upper end of the bar 43. A set' screw 48 holds the pawl-shaped pin 49. A spring 50, held fast to end 42 of rod 37 by the set-screw 51, passes through the opening 47 of the stand 46 and forces the bar 43 toward the pin 49. The stand 46 also carries the sliding pin 52, which rests against the bunter-iron 53. The bunter-iron 53 also just touches the shipper-handle 21 when the shipper is locked. The lay-sword 54 carries the clamp 55, held fast by the set-screw 56, and pendent from clamp 55, pivoted on the pin 57, is the linger or trigger 58, the upper en d of which has the lug 59, which strikes against the clamp 55 and prevents any further rotation.

On the stud 60, fast on the loom side 2, Fig. 4, is hung the lever 61, having a projection 62 on its extreme end to engage the trigger 58. l

The other arm 63 of the lever 61 has a joint 64, with an arm 65 terminating in a polished head 66, which extends under the arm 83, Figs. 3 andr4, secured on the shipper-shaft 22 by the set-screw 67. Cast on the lock-lever 28 is the arm 68, carrying the pin 69, from which extends the connector to the pin 36 in the brake-treadle 34. The connector 70 has a slot 71 i'n its lower end, the use of which will be hereinafter explained.

The angle-lever 72, Fig. 1, hung loosely on the stud 76, is connected to the arm 17 of the cam-lever 15 by the rod 73 and rod- heads 74 and 75. The motion from cam-lever 15 is further carried through the angle-lever 77 and rod- connectors 78 and 79, the lever 77 beinghung on the stud 80, fast in stand 81, Fig. 2, to the jointed arm 65 of the lever 61, Fig. 4. Therefore any motion of the cam-lever 15 will move the jointed arm 65.

The handle 84, Fig. 4, is held fast on shaft by the set-screw 86. The shaft 85 has a bearing in stand 87 made fast to loom side 1. On theV inner end of said shaft the arm 88 is made fast by set-screw 89.

From the pin 90 in arm 88 extends the rodhead 91, made fast to the rod 93 by the setscrew 93', and provided with the filing-piece 92, Fig. 1. On the other end of rod 93 is the rod-head 94, held fast by the set-screw 94 and provided with the slot 95, which is of such a length that the pin 96, fast in the cam-lever 15, which travels in the slot 95, will not touch either extremity of the slot when driven byr the cam 11.

The take-up is driven by the pawl 97, hung on the pin 98 inthe angle-lever 99, which has a bearing on the shaft 100. The pawl 97 engages the ratchet 101, and is actuated by the connector 102, receiving motion from an adjustable crank-arm on the crank shaft 3 in the ordinary way.

On the shaft 100 is hung the movable shield 103, connected to the lower end of the leverarm 84 by the connector 104. Pivoted at 105, Fig. 3, to the end of lever 83, fast on the shipper-shaft 22, is the connector 106, which extends to the foot-treadle 107, Fig. 4, supported above the floor by the stand 108, and is connected with said treadle..

The operation of my improved loom will be readily understood from the above description, in connection with the drawings, by those skilled in the art, and is as follows: As before stated, my invention relates to looms for weaving a class of fabrics made of two wefts, one being of jute and the other a' twisted chenille. Practice has shown that in order to form the best selvage the chenille should be worked from the top box. As shown in the drawings, the top box 8 is in position, and therefore the head 66 of the jointed arm 65 is under the arm 83. The chenille-shuttle has just been shot across, and the lay is approaching the back center. The trigger 58 engages the projection 62 on the end of the lever 61 and presses it down. By so doing the other end 65 is thrown up, carrying with it the arm 83, which rotates the shipper-shaft 22 and releases the lock-shipper 21 and the lock-lever 28. Spring 32 on rod 29 now acts and serves to draw over the lock-lever 28, and through the rod 29 to move the lever 29 and disconnect the driving-pulley 29" from the pulley 31. Now, if there was no brake on the loom the lay would come to rest when its momentum had been overcome by the friction of its parts; but, as shown in Fig. 3 of the drawings, the brake has been compressed so as almost to be set by the notch 45 in the bar 43 engaging with the pawl-like pin 49. Now, as the locklever 28 rotates from the unshipping of the loom, the arm 68 and connector 70 move upward, and the brake-treadle 34, pivoted at 34', is operated to tighten the belt 35 on the pulley 31 by the expansion of the coil-spring 40. The spring 40 is made quite light, so as to stop the looln in a somewhat gradual manner, which point of stoppage should be on the back center, thus allowing all the room possible for convenience in setting the chenille.

In the drawings, Fig. 1,the cam 11 is a fourpick cam-one up and one d0wn,taken twiceand it should be of a shape to accommodate the weave, for every time the upper shuttlebox is in position and has been picked out of, the loom will stop on the back center. After the chenille is set, the shipper is pulled on, either by the shipper handle or the foottreadle 107, and when by the rotation of the cam 11 the shuttle-boxes are raised at the same instant the jointed arm 65 is moved out from under the arm 83, being connected with the cam-lever 15, and the loom will not stop again until by the further rotation of the cam IOO IIO

11 the lever 15 moves down and the boxes descend. These operations are repeated until, if a rug is being woven, it is desirable to weave a heading. In the third and lowest shuttleboX is a shuttle with a much liner filling than either the jute or chenille, and it is with this fine filling that the heading is woven. The heading comes in immediately after a pick of chenille, so that the handle 84 is grasped and pulled into the upright dotted position shown in Fig. 1. The arm 8S moves into its dotted position, Fig. 1, and the motion thus given to the connector 93 is sufficient to draw the lever 15 away from the cam 11 and back such a distance as to bring the third shuttle-box 10 into position. The tiling-piece 92 on the rodhead 91 comes down and rests on the hub of the arm 88, having been iiled away sufficiently to allow the center line from the pin 96 in the lever 15 to the pin 90 in arm 88 to pass the center of the shaft 85,when the weight of the shuttle-boxes, acting through the cord 18 on the lever 15, will hold everything firm and in lock. The take-up pawl 97 has been taking two teeth each pick; but the movement of the arm 84 moves the shield 103 up under the take-up pawl, Fig. 1, and allows the pawl to take only one tooth of the ratchet each pick. This will causen ust twice as many picks to be put in per inch of heading as per inch of fabric.

The additional motion given to the lever 15 by the use of the handle 84 will simply move the jointed arm of the lever 61 still farther from the arm 83 on the shipper-shaft. The loom can now be started and the heading of the rug woven in, as Well as the heading for the beginning of the next rug to be woven. When the handle 84 is thrown back to its original position, the loom will be ready to Weave, as at first, and stop every time the first shuttle is in position.

It is sometimes convenient to run the loom without the brake, and when such is the case the brake-treadle 34 is forced down until the notch 45 in the bar 43 engages with the pawl like pin 49. The brake is now set, and any movement of the shipper-handle will not affect it, for the pin 36 will be out of reach of both the upper and lower ends of the slot 71 in the connector 70. lf the loom should project while the brake is in this position, the bunter-iron 53, which is of the ordinary construction, will strike both the shipper-handle 21 and the sliding pin 52. This sliding pin 52 is in contact with the bar 43, and the blow will free the notch 45 from the pin' 49 and allow the coil-spring 40 to expand and put on the brake, and the same blow of the bunter on the shipper-handle will unship the loom. It is evident from the construction of the trigger 58 on the lay-sword that when the lay is moving forward the trigger will swingbackward on striking the end of lever 61 and pass over it. Then, swinging down into place again, it will be in position to trip the lever as the lay approaches the back center.

It will be understood that the details of construction of the several mechanisms shown may be varied, if desired.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, in a power-loom, with the shuttle-boxes and means for automatically operating the same and the mechanism for stopping the loom whenever the top box is in position, of a mechanism for raising the third and lowest shuttle-boxes by hand, substantially as and for the purpose set forth.

2. In a loom, the combination, with a camactuated lever and connections therefrom to a lever provided with a jointed arm, said lever provided with a jointed arm, a finger or trigger hung loosely on the lay-sword, and the lay-sword, of an arm fast on the shipper-shaft, said shipper-shaft, a lock-shipper, and abrake. mechanism, substantially as and for the purpose set forth. l

3. In a loom, the combination, with mechanism for stopping the loom whenever the top boxes are in position, of mechanism f or raising the lowest shuttle-box into position by hand to weave in the headings and at the same time change the speed of the take-up mechanism to increase the number of picks, substantially as set forth.

GEORGE F. HUTCHINS.

Witnesses:

JOHN C. DEWEY, EDMUND F. SEYMOUR.

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