US2089069A - Harness operating mechanism for looms - Google Patents

Description

1937- w. J. OOTHOUT I 2,089,069

HARNESS OPERATING MECHANISM FOR LOOMS Filed June 27, 1936 7 Sheets-Sheet l Aug. 3, 1937. w. .1. OOTHOUT 2,089,069

HARNESS OPERATING MECHANISM FOR LOOMS Filed June 27, 1956 7 Sheets-Sheet 2 1 I Z8 2.9 76 26 fig Z. 2/

W a: Z IEVENTOR. Y v W m.

g- 3, 1937- w. J. OOTHOUT 2,089,069

HARNESS OPERATING MECHANISM FOR LOOMS Filed June 27, 1936 7 Sheets-Sheet 3 INVENTOR;

ATTORNEYJ.

Filed June 27, 1936 '7 Sheets-Sheet 4 F A: RNEYf Aug. 3, 1937. w. J. OOTHOUT I 2,089,069

HARNESS OPERATEING MECHANISM FOR LOOMS Filed June 27, 1936 7 Sheets-Sheet 5 IMF" INVENTOR.

Aug. 3, 1937. w. J. OOTHOUT I 2,089,069

HARNESS OPERATING MECHANISM FOR LOOMS Filed June 27, 1936 7 sheeq s sheet 6 Wm; Z LNVENTOR. MA%RNEYJ.

Aug-I3, 1937. w. J.,OOVTHOUT 2,089,069

HAR NESS OPERATING MECHANISM FOR LOOMS Filed June 27, 1936 7 sheets-sheet 7 Patented Aug. 3, 1937 PATENT OFFICE,

HARNESS OPERATING LMECHANISM FOR William J. Oothout,

Application June 27,

3 Claims.

' Thisinvention relates to a novel and improved form of harness operating mechanism for looms, the novel features of which will be best understood from the following description and the annexed drawings, in which I have shown a selected embodiment of the invention and in which:

I Fig. 1 is an elevation of the back of a loom frame having my invention applied thereto, only those parts of the loom which are necessary to an understanding of the invention being shown;

Fig. 2 is a View taken from the left of Fig. 1; I Fig. 3 is a fragmentary view on an enlarged 1 scale'taken on the same plane as Fig. 1, but showing the parts in different positions;

Fig. 4 is a view similar to Fig.2 but with parts I broken away and shown in section and showin various parts in different positions;

Fig. 5 is a view on an enlarged scale but on the same plane as Fig. 1 and showing certain elements in different positions;

Figs. 6 and 7 are diagrammatic views on the same plane as Fig. 5 and illustrating the operation of the invention;

Figs. 8, 9, 10, and '11 are diagrammatic views illustrating the operation of the invention;

Figs.j 8A, 9A, 10A, and 11A are views corresponding,"respectively, to Figs. 8, 9, 10, and 11 and showing the positions of the parts which operate the heddle frame.

. The invention relates to a mechanism for operating a harness on a loom, which harness isdesigned to form the shed in the warp. Devices have been used for operating the harness, but my invention is designed to provide certain improvements in the prior art mechanisms, which improvements will become evident or will be pointed out as the description progresses.

form, and is indicated generally by the numeral l. Mounted on that frame is a lay sword 2, on the upper end of which is a lay 3 including a reed 4. The other details of the lay and of the 100m have been omitted, as they may vary widely without affecting the invention.

1 The warp 5 is wound upon a beam 6, and at the lay it should have its threads separated into a shed, such as indicated at 1, this formation of the shed taking place repeatedly and at closely timed intervals during the operation of the loom, as understood by those skilled in the art.

In order to form the shed, I employ a harness comprising a plurality of frames 8, each of which has a plurality of heddles 9 carried thereby, each heddle having an opening therein through which one or more threads of the warp pass. The details of the heddles and frames likewise may vary widely without affecting the invention, and so they will not be described further. The shed is The frame of the loom may take any suitable oMs Queens Village, N. Y.

1936, Serial No. 87,699 (cuss-55) pulley I4. I provide two such pulleys, shown as one above the other, and in the illustrated embodiment alternate frames are operated by cables l3 connected to the lower pulley l4 and the intermediate frames are operated by cables l5 connectedto the upper pulley l6.

Each pulley is preferably of the construction indicated in Fig. 4, for example, where it is seen that the pulley is generally conical in shape, being provided with a plurality of parallel circumferential grooves, in each of which is a suitable hook I! to engage a loop on the end of a,

cable. The lower cone is mounted on a shaft I8 and the upper on a shaftlS which have secured thereon gears 20 and 2|, respectively, which mesh with an idle pinion 22 so that the two gears rotate simultaneously in the same direction. Ro-

tatably mounted on the shafts l8 and I9 are,

sleeves or hollow shafts 23 and 24, respectively, to which are secured gears 25 and 26 meshing with an intermediate pinion 21.

Each cone is preferably a double or duplex cone having a front half 2828' nearest the frontof the loom, and a rear part 29-29. The parts 28 and 28' are secured, respectively, to the shafts l8 and I9 to rock therewith, whereas the parts 29 and 29' are secured to the sleeves 23 and 24, respectively.

Since the cables l3 are wound in a'counterclockwise direction around the pulley l4, and the cables I 5 are wound in a clockwise direction around the pulley l6, and since these pulleys rotate simultaneously in the same direction, it will be seen that such rotation will cause opposite movements of the frames'to which the respective cables are connected. For example, if the frames operated by the cables l3 are raised, then the frames connected to the cables l5 will be released so that they may drop, and a positive depressing of these frames connected to the cable I5 is in' sured by connecting alternate frames to cables 30 which have their opposite ends connected to adjacent frames and extending around conically shaped pulleys 3|. These pulleys 3| are duplex, the same as the pulleys l4 and I6, but are idle, thereby insuring that the upward movement of one frame will be accompanied by an equal and simultaneous downward movement of the next adjacent frame.

gears 39 and 4|] mounted on stub shafts on theframe of the shaft so that they may operate independently of each other. The gears 39 and 40 have crank arms and 46. Each of these 'armshas on its upper end gear segments 41 and 48, respectiye1y,:

which mesh with the gears 20 and 25.

In operation, the shaft 35 is rotatedby any suitable driving mechanism from any suitable source of power, both of which have been omitted as not necessary t -an understanding of theinvention. The'warp is pulled from the beard-6,

likewise by any suitable'mechanism which" has been omitted, and the lay, shuttle; and other parts of the loomoperate in the usual manner.-

" Assume firs't'that the parts are in the positionindicated in Fig. 8, wherethe threads of the warp are all in a single horizontal plane and-theheddle frames are in what may be considered their normal position. I frame designated 8l is operated by the rear half 29 of the lower pulley I4, while the frame designated 8-2 is operated or controlled by therear half 29 of the upper pulley [6. Similarly, assume that the frame designated 8--3-is controlled by the front half 28 of the lower pulley l4, whereas the frame 8-4 is controlledby the front half 28'-of the upper-pulley 16. Forthe sake of simplicity, .I have shown only one frame controlled by each part of a duplex pulley, al-

though it will be understood that the number of frames controlled by each part may varyas desired, depending upon the-size of the=pulley,-

which in turn will depend upon the particular job involved.

be in approximatelythe-position shown in Fig. 8A. It willbe seen that the gears 31 and 39. are .of

slightly; different form than the. gears 38 and 411,.

the formshbeing designed ,to cause the operation which will now .be -more fully described. As the.

operation progresses, the gears will reach, some such position as shown in Fig.,9A, which. will where it will be seen that the shed is uniform -,;all

of the threads' which have been raised being raised in equal amount, and those which have been'depressed being depressed in equabamount Then, as the operation continues, theframes which have been raisedwill now-become lowered,

and those which have been lowered will be raised,- as indicated in Figs. l1 and 11A, showing the corpins 4i and thereon connected to links 43 and and these links at their opposite ends are pivoted torock the raised so that some are raised in advance of Assume also that the- With the frameandthe warp in the-positionshown in Fig... 8, the gears 31, .38, 39, and. 140' will.

provided a novel and improved means for forming a shed .and for facilitating the formation of a shed which will be clear. This is of particular importance where the warp is a dense one made upof'many fine threads or very fibrous threads which are apt to stick together. By introducing lag between the threads which are to be the others, it is possible to separate those threads and overcome their tendency to stick together, and, of course, the same is true of those threads which aredepressed. It will be noted that the cone shape of the pulleys willcause araisingof some frames more than others, the amount of raising corresponding generally to the angle of the threads in the two parts, upper and lower, of the shed. That is to say, each part of the shed is formed of threads disposed in an inclined plane, and the inclination of that plane is approximately the same as the inclination of the. cones. Since the various cables are connected to the pulleys by means of hooks engagingloops on the cables, the cables may be changed from an upper to a lower pulley or .vice versa, and thus the operation of the frames 'by the pulleys may "be varied.

I claim: I

"1. In a loom, aharness comprising a plurality of frames each'having means engaging certain threads of a warp, apair of spaced pulleys .one connected by cablesto' alternate frames'and'the other to the intermediate frames, means to rotate said pulleys in unison and in such directions that the alternateland intermediate frames will move in opposite verticaldirections'to separate theithreads 'ofthe warp into the two parts of a shed, each of said pulleys having two parts, and means for'aotuating one part with a different motion than the other.

",2; In a loo-m, a harness comprising a plurality of frames" each having means engaging certain threads of a warp, a pair of spaced pulleys extendinglengthwise of said warp, one of said pulleys being connected by cables to alternate frames and the other to the intermediate frames, means'to rotate said pulleys in unison and'in such directions that the alternate and intermediate'frames will move in opposite vertical dire'ctions to separate'the threads of the warp into the two parts of a shed, each of said pulleys havingtwo parts, andmeans for actuating one part with "a different motion than the other. "3. In a loom, a harness comprising a plurality of frames each havingmeans engaging certain threads of a warp, means to operate said frames toforrn al-shed, said 'means comprising a pulley connected by cables to those frames engaging the threads in one half of the shed, said pulley being formed in two parts spaced center to center lengthwise of the longitudinal axis of the pulley, and means for positively rotating said parts simultaneously butindependently of each other and with different motions.

, WILLIAM J. OOTHOUT.

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