US1948960A - Loom - Google Patents

Description

E. A. DANIELS Feb. 27, 1934.

LOOM

Original Filed Aug. 29, 1929 5 Sheets-Sheet 1 INVENTOR ATTORNEY Feb. 27, 1934. E. A. DANIELS ,948,960

LOOM

Original Filed Aug. 29, 1929 5 Sheets-Sheet 2 awat J INVENTOR ATTORNEY E. A. DANIELS F eb. 27, 1934.

LOOM

Original Filed Aug. 29, 1929 5 Sheets-Sheet 3 E. A: DANIELS 1,943,960

LOOM

Original Filed Aug. 29, 1929 5 Sheets-Sheet 4 15' daz'e A? Janie/s ATTORNEY Feb. 27, 1934. E. A. DANIELS 1,948,960

LOOM 5;,

Original Filed Aug. 29, 1929 5 Sheets-Sheet 5 of the terry continued in perfect order. upon one side of the cloth while upon the reverse Patented Feb. 27, 1934 UNITED STATES PATENT LOOM Eddie A. Daniels, Kannapolis, N. 0.

Application August 29, 1929, Serial No. 389,251 Renewed January 15, 1934 3 Claims. (Cl. 139-25) This invention relates to looms, and has espestripe to another and vice versa, except upon the cial relation to looms for weaving terry cloth, an high priced. Jacquard and dobby looms. object being to provide means which may be at- The present invention makes it possible to tached to a plain or cam loom whereby the shedweave upon the plain or cam loom terry cloth of ding of the harness may be reversed to reverse various designs, and to change from one to anthe terry, so that the thread or pattern appearing other and continue weaving in perfect order with upon one side of the cloth may be continued upon out breaking the pattern and without producing the opposite side to produce a cloth with the patan imperfect place in the cloth. Thus, a stripe of tern upon opposite sides reversed with the weave any color may be the beginning of the pattern 5 Another object of the invention is the provision side directly opposite said stripe, the latter will of means which may be applied to a loom to renot be effected. A change may be made in the verse the shedding of the loom and reverse the design so that the stripe of this side will stop at a pattern, either while the loom is weaving in the given point and be transferred to the opposite "II terry, or in the plain cloth. side of the cloth, while the different colored Another object of the invention is the provision stripe upon the opposite side will be transferred af a device of the above character, which while so as to form a continuation of the other colored shown and especially adapted for use in connecstripe. tion with a cam terry loom of the type illustrated For the accomplishment of the above, the inin Patent #1,724,283, may also be used in connecvention provides a single treadle bar 20 which is 75 tion with Jacquard, dobby and other types of pivotally mounted as shown at 21. This bar is looms. provided with a notched extension 22 which is With the above and other objects in view the inconnected to the second harness 23 of the loom vention further includes the following novel feaby means of a strap 24. The harness 23 has con- 25 tures and details of construction, to be herenected thereto one end of a strap 25 which passes inafter more fully described, illustrated in the over a roller 26 and which is connected to the accompanying drawings and pointed out in the top of the first harness 27. This first harness has appended claims. connected thereto one end of a spring 28 whose In the drawings:-- opposite end is secured to a stationary member 30 Figure 1 is'a side elevation partly broken away as shown at 29. The strap 25, roller 26 and 3 illustrating the invention. spring 28 are duplicated at opposite ends of the Figure 2 is a front View thereof. harness.

Figure 3 is a fragmentary plan view of the The harness carries terry warps of different treadle bar, showing the pivoted fingers and their color and when the treadle bar 20 is depressed,

controlling mechanism. the harness 23 will move downward while the 90 Figures 4 5 and 6 are sectional views taken harness 27 will move upward. This action is respectively on the lines 4.-4, 5-5 and 6-6 of reversed when the treadle bar 20 moves upward, Figure 3. so that the shedding of the terry warps will be Figure 7 is an enlarged front elevation showreversed. This will of course reverse the posi- 40 ing the pivoted fingers of the treadle bar and the tion of the terry warps forming the bottom line 95 actuating cams. of the shed moving upward to form the top line Figure 8 is a side elevation. and vice versa. The ground warp threads are Figure 9 is a view similar to Figure 7 showing not shown but are controlled in the usual well a difierent position of the parts. known manner by harnesses.

Figures 10 to 17 inclusive are diagrammatic For the purpose of controlling the position of views illustrating the dififerent positions of the the harness and consequently the position of the cams and the treadle bar fingers. warp threads 0;, the treadle bar 20 comprises a Figure 18 is a diagrammatic view illustrating frame within which is pivotally mounted as the reversal of the terry. shown at 30 a plurality of fingers indicated at 1,

Heretofore in weaving terry cloth the pattern 2, 3 and 4. These fingers carry rollers 31 at begun must be continued throughout the length their outer ends for engagement by cams 1a, 2a,, of the weave. In other words, if the cloth is wov- 3a and in, these cams engaging respectively the en to produce alternate stripes, these stripes fingers 1, 2, 3 and l. The cam la is a two pick must be maintained throughout the length of the cam, that is, it engages the finger 4 for two picks weave as it is impractical to change from one 01" the loom and extends two-thirds or two hundred and forty degrees of a circle. The other three cams are one pick cams and extend onethird or one hundred and twenty degrees of acircle.

The fingers 1, 2, 3 and 4 are independently movable upon the pivot 30 and this movement is resisted by springs 32 so that the rollers will be held upward for engagement by the cams.

The frame of the treadle bar is provided with recesses 33 which receive slides 34. These slides are movable into and out of the recesses and when positioned within said recesses are engaged by arcuate fingers 35 which extend from the fingers 1, 2, 3 and 4. By reference to Figure 4 of the drawings it will be seen that the finger 1 has its arcuate-shaped finger 35 engaging its particular slide 34, so that when this finger 1 is engaged by the cam 1a it will be locked against movement with respect to the treadle bar so that the treadle bar will be depressed to actuate the harness in the manner previously described.

The slides 34 have pivotally secured thereto the lower ends of rocker arms 36. These arms are pivotally mounted as shown at 3'7 and their upper free ends are engaged by earns 38 which are mounted upon a shaft 39. One of these rocker arms and cams 38 is provided for each of the pivoted fingers. The cams 38 operate the rocker arms to move the slides 34 inward, and these slides are held against the cam but are returned to their normal positions by springs 37. These springs are attached to the arms 36 and to collars fast upon the pivots 3"! as shown in Figure 5 of the drawings.

The shaft 39 has mounted upon one end a beveled pinion 40 which is engaged and driven by a pinion 41 which is mounted upon a shaft 42. Mounted upon the shaft 42 is a ratchet wheel 43 which is engaged by a spring influenced dog 44 which is pivotally mounted as shown at 45 upon an arm 46. This arm 46 is freely movable upon the shaft 42 and is rigid with an arm 47. This last mentioned arm has pivotally secured thereto one end of a rod 48, the arm 4'? being provided with an elongated slot 47 so that adjustment may be effected to adjust the throw of the dog 44 at each operation.

The rod 48 is connected to a rod or chain 49 which is in turn secured to an arm 50 which is fast upon a shaft 51. Also fast upon this shaft is an arm 52 to which is connected the rod 53 which is controlled generally at P, and this mechanism may be of the character illustrated in Patent #1,724,283 or it may be of any other suitable character. Of course this rod may be con trolled by the head of a Jacquard or dobby loom where the invention is applied to looms of this type.

As thus far described it will be apparent that as the rod 53 is actuated, movement will be imparted to the rod 48 so that the shaft 42 will be rotated one tooth of the wheel 43. This movement will, through the gears 40 and 41, rotate the shaft 39 and move one of the cams 33 so as to rock its particular arm 36. The slide 34 which is controlled by the arm 36 rocked, wi l be moved into the path of the finger 35 of a particular pivoted finger, for example, the finger 2. This finger will therefore be rigid with the treadle bar so that when the cam 2a engages this finger, or the roller 31 carried thereby, the treadle bar 20 will be depressed to move the harness 23 downward and the harness 27 upward. As the cam 2a is a one pick cam, the treadle bar will be held down only for a period of one pick.

Should the finger 4 be locked rigid with the treadle bar, the cam 4a, will be brought into action to hold the treadle bar down for a period of two picks. Thus, when the cams 1a, 2a, or 3a actuate the treadle bar, the treadle bar will be down one pick and up two picks, while, when the cam 4a is brought into action, the treadle bar will be down a period of twopicks and up one pick.

The cams 1a, 2a, 3a, and 4a, are fast upon a shaft 54, and this shaft of course operates in synchronism with the reed motion of the loom. The ground warp threads are controlled in the usual way by harness (not shown) and the warp beams A and B contain terry warps of different colors which pass through the harnesses shown.

In weaving terry cloth, assuming that the finger 4 is locked to the treadle bar and cam 4a is in action, the pattern will continue until the pattern mechanism is actuated to change the positions of the cams 38. Referring to Figures 4 and 8 of the drawings it will be seen that although each finger 1, 2, 3 and 4 is depressed on every complete revolution of the shaft 54, only one finger at a time is locked to the treadle bar by the cam 38. For example, in weaving one color of terry on the underside of the cloth, finger 4 only is locked to the treadle bar and is depressed by cam 4a for two picks, the other fingers although being depressed by their respective cams are unlocked. This condition maintains until a reversal to the opposite side of the cloth is desired, whereupon finger 4 is released and finger 3 is locked to form the last lower loop under one weft thread and the small loop over the next weft thread, whereupon finger 3 is then released and finger 1 locked to form the small loop under one pick and the larger loop over two picks on the opposite side of the cloth. When it is desired to reverse again to the under side of the cloth finger 1 is unlocked, finger 2 locked to form the small loop under one pick and the larger loop over one pick, whereupon finger 2 is released and finger 4 again looked as at first. If desired, the return to cam 4a may be by any number of picks divisible by six.

Working from cam 1a to cam 4a, as the loom makes the third pick of the reed motion with the shuttle going to the box end of the loom, finger 2 is looked under cam 2a which cam is up on its second pick. When the shuttle comes back to the single end of the loom, cam 2a depresses finger 2 and as this finger is locked to the treadle bar, the latter will be depressed. On the next pick of the loom the shuttle will go to the box end and finger 4 will be looked under cam 4a as this cam is up in its one pick position.

The various positions of the cams and fingers are illustrated in Figures 10 to 1'7 of the drawings. In the first mentioned figure cam 1a is down one pick and in Figure 11 up two picks.

In Figure 12 cam 2a is down while in Figure 13 cam 2a is up. In Figure 14 cam 4a is down and in Figure 15 cam 4a is up. In Figure 16 cam 3a is down, while in Figure 1''! cam 3a is up.

For the purpose of holding the cam shaft 39 in proper position to properly locate the cams 38 with respect to the rocker arms 36, the shaft 42 has mounted thereon a notched wheel 55. This wheel is adapted to be engaged by a tooth 56 which is carried by a pivotally mounted dog 57, so that when the tooth 56 is engaged in one of the notches, one of the cams 38 will be positioned to rock its particular arm 36 and move one of the slides 34 inward. The tooth 55 is yieldingly engaged with the notched wheel 55 by means of a spring 58.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is herein reserved to make such changes as properly fall within the scope of the appended claims.

Having described the invention what is claimed 1s:

1. In a loom, a pivotally mounted treadle bar operatively connected with the loom harness, cams of different configuration mounted for rotation above the treadle bar, spring influenced fingers pivotally secured to the treadle bar in the path of the cams, slidingly mounted elements movable into and out of position to lock the fingers to the treadle bar, whereby engagement by the cams will move the bar pivotally, and means controlled by the operation of the pattern mechanism of the loom to control the position of the slidingly mounted elements.

2. In a loom, a pivotally mounted treadle bar operatively connectedwith the loom harness, cams of different configuration mounted for rotation above the treadle bar. spring influenced fingers pivotally secured to the treadle bar in the path of the cams, arcuate extensions carried by the fingers, means movable into and out of the path of the arcuate extensions to lock the fingers to the treadle bar whereby engagement by the cams will move the bar pivotally, and means controlled by the operation of the loom pattern mechanismto control the operation of the finger locking means and regulate the time the treadle bar is depressed.

3. In a loom, a pivotally mounted treadle bar operatively connected with the loom harness, cams of different configuration mounted for rotation above the treadle bar, spring influenced fingers pivotally secured to the treadle bar in the path of the cams, slidingly mounted elements movable into and out of position to lock the fingers to the treadle bar, whereby engagement by the cams will move the bar pivotally, pivotally mounted rocker arms connected with said elements, and means controlled by the loom pattern mechanism to rock the arms and control the position of the slidingly mounted elements.

EDDIE A. DANIELS.

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