US2087332A - Loom - Google Patents

Description

July 20, 1937. I w, ROBERTS 2,087,332

Loom

Original Filed Jan. 9, 1936 2 Sheets-Sheet 1 July 20,1937. w, A, ROBERTS 2,087,332

LOOM

Original Filed Jan. 9, 1936 2 Sheets-Sheet 2 Ha; 7. r P

Sm: an

Patented July 2%, 1937 UNiiED srarss PATENT @FEEQE onethird to William H. Browne and one-third to Lela Roberts, both of Greenville, S. 0.

Application January 9, 1936, Serial No. 58,392 Renewed April 22, 1937 An important object of the invention is to provlde means whereby a loom which is adapted for invention relates to improvements in making checked goods such as ginghams, and.

having two shiftable shuttle boxes at one side, and a single non-shiftable shuttle box on the other side, may be converted into a pick. and pick loom having two shiftable shuttle boxes at its opposite sides, and which conversion may be effected by simple'means, which are relatively inexpensive, and may be installed upon the old loom, without materially altering the construction of the same.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings, forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of a converted loom embodying my invention,

Figure 2 is a horizontal section taken on line 22 of Figure 1,

Figure 3 is a transverse vertical section taken on line 33 of Figure 1,

Figure 4 is a detailed vertical section taken on line ll of Figure 3,

Figure 5 is a diagrammatic view showing the multiple shuttle boxes in one relative position,

Figure 6 is a similar view showing the multiple shuttle boxes in the other or shifted relative position,

Figure '7 is a front elevation of the converted loom embodying my invention.

Figure 8 is a perspective View of the driving means for shifting the multiple shuttle boxes,

Figure 9 is an enlarged detailed section taken on line 99 of Figure 8, and,

Figure 10 is an enlarged detailed section taken on line li2i9 of Figure 8.

The loom which I have illustrated and have converted from a loom having two shiftable shuttle boxes at one side and a coacting single nonshiftable shuttle box at the other side, is: shown substantially in Letters Patent 948,568, issued February 8, 1910, to which reference is made for much of the details of construction of the old loom. Only so much of the old construction will be described as is deemed necessary for a proper understanding of the present invention.

The old loom comprisesa frame including sides l5 connected by the usual breast beam, not shown. At the bottom of the sides i5 is the rock shaft l6 having the lay swords ll rigidly mounted thereon, and the lay i8 is rigidly attached to the upper ends of the lay swords. Rigidly mounted upon the ends of the rock shaft I6 are stands l9 including sleeves 28, which are clamped to the rock shaft it by set screws 2!. The stands l9 carry yokes 22, in which are pivoted the picker sticks 23. The operating means for the picker sticks have not been shown. In the loom shown in Patent 948,568, when one shuttle box is in the operative position or at the same elevation with the coacting single shuttle box, the picker sticks move in the same directions for a selected number of strokes, thus introducing a selected number of woof strands or filling, and after this, the shiftable shuttle boxes are moved so that the other shuttle box is brought at the same elevation with the single coacting shuttle box, and the picker sticks then operate in the same manner. In the present invention, the picker sticks 23 are operated in the usual manner present in a pick and pick loom, both picker sticks being moved inwardly simultaneously. The lay i8 is oscillated to pack up the woof or filling by the usual means, as shown in Patent 948,568.

Secured to the lay sword ll, adjacent to the left side 55 of the loom, is a guide 25, receiving and guiding the vertically shiftable multiple shuttle box unit 25. This shuttle box unit is shown as comprising two superposed shuttle boxes 28. The shuttle box unit is ordinarily an integral structure. The guide 2% and the shuttle box unit, which is described, are present upon the original loom which I have converted. The original loom carried at the right side and adjacent to the'right end of the lay 58, a single non-shiftable shuttle box which was mounted upon the top of the lay l8 which originally projected outwardly beyond the adjacent lay sword H. In making the present conversion, I saw off the lay l8 at about the point 2? and remove the right end of the lay l8 and the single shuttle box, and I substitute therefor a guide 28, corresponding'to the guide 2% and mount this guide upon the adjacentlay sword El, and I arrange within the guide 28 a vertically shiftable shuttle box unit 29, corresponding to the shuttle box unit 25, and comprising two superposed shuttle boxes 30. The shuttle box unit 28 is preferably formed integral. The loom is therefore equipped with two shiftable multiple shuttle box units, as is present in the ordinary pick and pick loom.

The shuttle box unit 25 on the old loom is sup ported and shifted by, a substantially vertical rod 3!, rigidly secured thereto, and this rod extends downwardly and is slidably mounted within the aperture 32 of a bracket 33 which is rigidly attached to the adjacent stand l9 by a bolt 34. At its lower end, the rod 3| has a sleeve 35 adjustably mounted thereon and is adapted to be clamped in adjustment at the selected position by lock nuts 36. The sleeve 35 has a trunnion 31, preferably integral therewith, and this trunnion pivotally receives thereon an eye 38 of a releasable link connection or alligator which is designated, as a whole, by the numeral 39. This alligator includes opposed jaws 40 and All, normally holding a pivot element 42 in recesses 83, but releasing this pivot elementwhen the 100m is subjected to excessive strains. The pivot element or bolt 42 operates within an elongated slot 45 formed in one end of a box lever 45, in turn supported upon a pivot 46, carried by a stationary bracket 41. It is thus seen that when the box lever 55 is vertically swung upon its pivot 46, the substantially vertical rod 3| will be raised and lowered, through the medium of the connecting link 39 and associated elements. This is the operation present upon the old loom. Since the old loom had shiftable shuttle boxes upon the left side only, there was no means on the right side to shift the added shiftable shuttle boxes, and to effect this movement, I provide a substantially vertical rod 48, rigidly attached to the bottom of the shiftable shuttle box unit 29, and operating at its lower end through an aperture 59 formed in a bracket rigidly secured to the adjacent stand l9 by a clamping bolt 5! or the like. The rod 48 is moved upwardly by a compressible coil spring 52, surrounding the same, and engaging at its lower end, the bracket 58, and at its upper end a sleeve 53, clamped to the rod 48. A non-extensible flexible element 54, such as a chain, is suitably attached to the sleeve 53 and extends longitudinally of the rod 58 and is passed about a grooved pulley 55, rotatable upon a trunnion 58, rigidly secured to the adjacent stand E9. The chain 54 then extends horizontally to the left beneath the rock shaft E6 and passes about a grooved pulley 51, rotatable upon a trunnion 58, rigidly attached to the adjacent stand l9. The flexible element or chain then extends upwardly and longitudinally of the rod SI and is suitably connected with a sleeve 59, clamped to this rod. It is thus seen that the rods 3| and 48 are connected so that they move longitudinally in unison and in opposite directions.

A horizontal bracket 60 is rigidly secured to the left side E5 of the loom frame and has a bearing 6!, rotatably holding a short shaft 62. The short shaft 62 has a disk 83 rigidly secured thereto, and this disk is provided upon its inner side with a pin 84, rigidly secured thereto, and this pin has pivotal connection with a link 65.

The link 65, Figure 9, is provided at its upper end with a cylindrical opening 66, receiving a cylindrical pin 67, having a square portion 68 and a flange 89 rigidly secured thereto. The square portion 68 is slidable within an elongated slot in formed in the inner end of the box lever 45, and may be adjusted within this slot, and clamped in the selected adjusted position by a nut H. The disk 53 has spaced pins 12, rigidly secured thereto and arranged upon its outer side, and these pins are arranged in a square group. A holding device is employed to coact with these pins, comprising a head 13 carried by a vertically swinging arm 74, pivoted at T5, to a stationary bracket E6, in turn rigidly mounted upon the bracket 68. The arm 14 is drawn downwardly by a retractile coil spring ll. The function of the holding device 78 is to hold the disk 13 and its shaft 62 against displacement or accidental turning movement, when turned to the selected position. The shaft 82 and associated elements is old in the original loom and the shaft 62 corresponds to the shaft 58' in Patent 948,568. In Patent 948,568, a mutilated pinion I 3 is rigidly mounted upon the shaft l3 and has two spaced sets of gear teeth, with actuating teeth shiftable to positions between the two sets of gear teeth. These actuating teeth and pinion E8, in Patent 948,568, coact with a master gear I 5. The actuating teeth in the patent are shifted by a lever l8 operated by a pattern lever 2! of the pattern mechanism. In converting the loom, the pattern mechanism is omitted and the means including the lever i5 is omitted and the actuating teeth are not shiftable. Instead of employing shiftable actuating teeth, I employ actuating teeth 78 which are fixed and not shiftable, and are carried by a hub l9, rigidly clamped to the shaft 62 by a bolt 89. The actuating teeth 18 are disclosed between sets of teeth 8! of a mutilated gear 82, which is rigidly mounted upon the short shaft 62 by -a pin or rivet 83. The mutilated gear 82 corresponds to the mutilated gear I 8 and may be the original mutilated gear on the old loom. The mutilated gear 82 is therefore provided with the actuating teeth l8 which are rigidly connected with the mutilated gear to turn therewith and are not longitudinally shiftable, as is the case in the loom shown in Patent 948,568. Arranged near the short shaft 52 is a bottom shaft 84, corresponding to the shaft 85 in Patent 948,568. This shaft is suitably journalled in bearings carried by the sides E5. The master gear l4 in Patent 948,568 with one set of gears, is removed and a mutilated master gear 85 is rigidly mounted upon the shaft 85. This mutilated master gear 85 has two sets of gear teeth 88, spaced, and diametrically oppositely arranged. The shaft 84 is turned in the direction of its arrow, Figure 1, and as each set of gears 88 approaches the adjacent actuating tooth 18, it will engage therewith and turn the mutilated gear 82 so that the corresponding set of teeth 89 will mesh with the adjacent set of teeth 86. During this engagement, the mutilated gear 82 and its shaft 62 are turned for one-half of a revolution, so that the disk 63 will swing the box lever to the extreme upper or lower position, and when the master gear disengages the mutilated gear 82, the box lever 45 is at rest in the extreme upper or lower position and is securely held in such position against accidental movement or displacement by I the holding device 73.

The operation of the loom will be more readily understood from a consideration of Figures 5, 6 and 7. As explained, the box lever 45 is swung in opposite directions to the extreme upper and lower positions. In Figures 5 and 7, the end of the box lever 55, carrying the pivot 42, is in the extreme lower position, whereby the upper shuttle box 26 of the mutiple shuttle unit 25 is in the lowered position, and at the same elevation with the lower shuttle box 38 of the multiple shuttle box unit 29, the unit 29 being now in the extreme upper position. The upper shuttle box 28 and the lower shuttle box 89 may be regarded as holding shuttles carrying bobbins of red yarn, while the lower shuttle box 28 and the upper shuttle box 38 may be regarded as carrying shuttles having bobbins of blue yarn, these colors being indicated by the letters R and B, Figures 5 and 6. When the said box lever 45 draws the rod 3! downwardly so that the parts are arranged as in Figure 7, the spring 52 moves the rod d8 upwardly a corresponding distance as the rod (it pays out the flexible element or chain 5 1. When the rod 3! is elevated, to shift the multiple shuttle box unit upwardly, the rod 3| pulls the chain 54 with it, and this chain acting about its pulleys, moves the rod 48 downwardly, and the shuttle box unit 29 is lowered for a corresponding distance. It is thus seen that means are arranged upon one side of the loom frame only, for actuating the adjacent shuttle box unit, and means are provided for connecting the movable rod of this shuttle box unit with the movable rod of the companion shuttle box unit, so that these shuttle box units move in unison and in opposite directions, for the same distances. When the shuttle box unit 25 is raised, Figure 6, and the shuttle box unit 29 is lowered, the lower shuttle box 26 is at the same elevation with the upper shuttle box 39, and the shuttles containing the bobbins with blue yarn pass from one shuttle box to the other. The picker sticks 23 operate in accordance with picker sticks in the usual pick and pick loom, that is, the two picker sticks move inwardly simultaneously and outwardly simultaneously, the coaction of the-picker sticks being properly timed, as is well known.

When the single non-shiftab-le box is removed from the loom, the means to replenish the bobbins is also omitted.

The loom which I have applied my invention to is similar to the loom shown in Patent 948,568, as stated, and is also quite similar to the loom shown in Patent 1,003,528.

While I have illustrated my invention as converting a loom having a shiftable shuttle box unit of two shuttle boxes coacting with a single shuttle box, into a pick and pick loom hav-- ing two shuttle box units, each containing two shuttle boxes, yet the invention is not restricted to the number of shuttle boxes in the units, as the invention may be used, with slight modifications, upon shuttle box units, each of which contains other mutiples of shuttle boxes, such as four, six, etc.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope of the subjoin-ed clairnsi Having thus described my invention, what I claim is:

1. A loom comprising a frame having sides, a lay, guide devices arranged near the sides and connected with the lay, shiftable shuttle box units engaging the guide devices, each shuttle box unit including a pair of shuttle boxes, rods connected with the shuttle box units to move them, a box lever arranged adjacent to one side of the frame and connected with the adjacent rod, a short shaft arranged adjacent to the same side of the frame, driving connecting means between the short shaft and the box lever, a mutilated gear rigidly mounted upon the short shaft and having a pair of sets of diametrically oppositely arranged gear teeth, actuating teeth arranged between the sets of gear teeth, means rigidly attaching the actuating teeth to the short shaft, a master gear arranged near the mutilated gear and having a pair of spaced sets of gear teeth which are oppositely arranged, a flexible element connected with the rod adjacent to the other side of the frame to move the rod in one direction and extending across the frame to the companion rod and connected therewith, guide means engaging the flexible element, and a spring to move the rod in one direction when the flexible element is payed out.

2. In a loom, a frame having sides, a rock shaft carried near the bottom of the frame and extending to: the exterior of the sides, stands arranged exteriorly of said sides and mounted upon the rock shaft, a lay, lay swords supporting the lay and mounted upon the rock shaft, guide devices connected with the ends of the lay, vertically movable shuttle box units engaging the guide devices, each unit including a plurality of shuttle boxes, substantially vertical rods arranged exteriorly of the sides of the frame and connected with the shuttle box units, a box lever arranged exteriorly of one side of the frame and near the substantially vertical rod and connected with such rod to positively move it in opposite directions, means to swing the box lever in opposite directions, a spring to move the other substantially vertical rod upwardly, pivoted guide elements, and a flexible element extending across the frame adjacent to its bottom and passed about the pivoted guide elements, the ends of the flexible element being arranged exteriorly of the sides of the frame, one end portion, of the flexible element extending upwardly from the adjacent pivoted guide element for connection with the rod which is moved upwardly by the spring and the opposite end portion of the flexible element extending upwardly for connection with the rod which is moved by the box lever, the arrangement being such that the rods are. simultaneously moved in opposite directions and the flexible element moves the spring shifted rod downwardly in opposition to the spring.

3, In a loom, a frame, a rock shaft carried by the frame near its bottom, stands mounted upon the ends of the rock shaft, a lay, lay swords supporting the lay and mounted upon the rock shaft, guide devices connected with the ends of the lay, vertically movable shuttle box units engaging the guide devices, each unit including a plurality of shuttle boxes, substantially vertical rods connected with the shuttle box units, a box lever arranged I near one substantially vertical rod and connected with such rod to positively move it in opposite directions, a spring to move the other substantially vertical rod upwardly, pivoted guide elements mounted upon the stands and arranged beneath and near the lower ends of the substantially vertical rods, and a flexible element extending across the frame adjacent to its bottom and passed about the pivoted guide elements, the end portions of the flexible element extending upwardly beyond the guide elements and connected with the substantially vertical rods, the arrangement being such that the substantially vertical rods are simultaneously moved in opposite directions and the flexible element moves the spring shifted substantially vertical rods downwardly opposition to the spring.

4. In a loom, a frame, a lay mounted upon the frame, guide devices connected with the ends of the lay, vertically movable shuttle box units engaging the guide devices, each unit including a plurality of shuttle boxes, substantially vertical rods attached to the shuttle box units, a. box lever arranged near one substantially vertical rod and connected with such rod to positively move it in opposite directions, means to swing the box lever in opposite directions, a spring to move the other substantially vertical rod upwardly, guide elements carried by the frame near its bottom and near the lower ends of the substantially vertical rods, and a flexible element extending across the frame adjacent to its bottom and passed about the guide elements, the end portions of the flexible element extending upwardly beyond the guide elements, such end portions being attached to the substantially vertical rods, the arrangement being such that the rods are moved simultaneously in opposite directions and the flexible element moves the spring shifted substantially vertical rod downwardly in opposition to its spring.

WILLIAM A. ROBERTS.

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