US1691154A - Jacquard indicator for looms - Google Patents

Description

4 Nov. 13,1928. 1 1,691,154

E. R. HOLMES I JACQUARD INDICATOR FOR LOOMS Filed Sept. 4, 1926 Zfiheets-Sheet 2 (p fix INvEN-roFa x Q ELBFPIDGEJ:C{HOL ME5J v 4 ig AT TOR E75 Patented Nov..l3, 1928. v j

UNITED STATES PATENT OFFICE.

ELBRIDGE R. HOLMES, OF WORCESTER, MASSACHUSETTS, .faLSIfGNOR TO CROMPTON 8:; KNOWLES LOOM WORKS, 013 WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

JAGQUARD INDICATOR non Looms.

Application filed September 4, 1926. 'serial No. 183,782.

This invention relates to improvements in rangement of parts hereinafter described and jacquard indicators for looms and it is the set forth in the claims. 1 principal object of the invention to provide In the accompanying drawings wherein I improved means for preventing a misindicahave shown a convenient embodiment of my 5 tion from the jacquard should the loom be invention,

stopped when going either forward or bacl1- Fig. 1 is a side elevation of a loom having ward with the indication half given. my invention applied thereto, In my co-pending application Ser. No. Fig; 2 18 a view similar to a portion of Fig.

116,750 there is shown a jacquard indicator 1 but on an enlarged scale and showing the Similar to the one set forth herein but the lever indicating mechanism after having been which is connected directly to the jacquard is moved to one of its extreme positionsby th provided with a series of teeth to cooperate jacquard. a i with spring plungers. I findin practice that Fig. 3 is an enlarged horizontal. section on the plungers, moving in a fixed line, do not lineB-S of Fig. 2,

15 afford the adjustment desirable in mecha- Fig. fis a fragmentary rear elevation on an nisms of this kind and furthermore the enlargedscale taken in the direction of arrow plungers have to be made in such a way as to Fig. 2, and i prevent rotation on their axes, otherwise when Fig. 5 is a vertical section online 5-5 of the knife edges pass each other the plunger is F] 4:. likely to turn and interfere with the indica- Referring more particularly to Fig; 1 it tion. It is a further object of my invention will be seen that I have provided a loomside to provide the lever which is directly con- 10 having vibrator levers 11 pivotally connected to the jacquard with an indicating arm nected with respect to the frame, each lever movable with respect to the lever andhaving carrying a vibrator gear 12. Oppositely ro- 25 intersecting inclined faces which define a tating cylinders 13 and 1a are mounted on the knife edge to cooperate with a second knife frame and act to rotate the vibrator gears 12 edge adjustable with respect to the lever to when the latter are properly positioned. with afford means for moving the lever properly respect to the cylinders by pattern mechanism irrespective of any variations which may be not shown). Each vibrator lever has acon- 30' due to workmanship. nector 15, attached to a bell crank lever 16 The aforesaid application shows a. plurality pivoted on a fixed center 17 and having con} of box controlling units each of which .innection with abox lifting lever 18. The lever so cludes a pair of hooks pivotally connected to 18 is connected to box rod 19 for the boxes 20. an oscillatable positioning lever. ".llhese The vibrator levers 11 will beraised orlowl. hooks are arranged to beengaged by a regucred according to which of the bones 209is'to larly moving knife which moves in a fixed become active. The matter thus far described path and as shown in said application. no:pro-' is a well-known form of box ntiotion; I vision is made to alter the relative positions The jacquard indicator mechanism of the hooks and knife edge. It is a further mounted on a frame 21 and has pivoted therein object of my invention to provide for changto an actuator lever 22 provided with a knife ing the position of the hooks relatively to the or lifter 23 and is connected by means of rod actuator therefor, preferably by making the 524i tofa cainlever 25. The latter is actuated by lugs which cooperate with the jacquard cona cam 26 secured to the crank shaft 27 ofthe trolled lever movable and adjustable as to loom so that for each pick of the loom the position. i knife or lifter 28 will be raised and lowered.

With these and other objects in view which The, frameQl has a forwardly extending will appear as the description proceeds, my arm 28 on which is pivoted as at 29 a series of invention resides in the combination and ar three-armed positioning levers 30,. The op thereto as at 55 a depending arm 56 provided corresponding; lever 50 positely extending arms of each lever are connected to upwardly extendmghooks 31 and the intermediate arm 32 is proportioned,

to be received by one or another of two cam notches 33 formed in a vibrator controlling lever 34. There is one lever 34 for eaehof the three-armed levers 30 each of said levers 34 being pivoted as at 35 to the frameQl and beingconnected at the'other end thereof to a. vibrator lifter rod 36 the lower end of which is connected as at 3'? to one or another of the" position as shown in 2 in full lines andbeing able to move to its lower position when the levers 30 are moved to the dotted line position indicated in said figure.

The hooks 31 are proportioned to be operable one at a time withthe knife edge or lifter 23 so that by selecting which of the hooks shall be raised it is possible to rock corre sponding levers 30 and therefore the vibrators 11 either to raise or'lower the latter and thus alter the position of the active box.

Thematter described as being mounted on frame 21 and the associated 1331118111213 be substantially the same as that shown in patent telly-on No. 1,554,297. The .mechanism shown in said patent to Ryon is not definite enough in its action in that the controllers for the hooks may stop at an intermediate position so that the knife 23 moves upwardly both heel-ts will be indicated thereby, a condition which of course will produce a break. lnan eifort to overcome this defect I provide a lever for each pair of hooks 31, saidlover being pivoted on a stud 51 secured to the frame 21 and having projecting laterally from the lower end thereoftln'ee sJaced lugs 52 between which extend the upper ends of the hooks 31.

Each of'said levers 50 is connected by means of upper and lower cords 53 and 54:, respec tively, to the'jacquard mechanism indicated at .T in Fig. 11 said mechanism acting to pullon but one cord at a time so that the 3 ill be rocked either to the right or left.

Each lever 50 has pivotally connected.

with a knife edge 57 andthere is interposed between each arm 56 and its lever a compression spring'58 servingto push the knife edge 57 away from the lever 50. A laterally provjecting arm 59 on the frame 21. is provided with a plurality of slots 60 as indicated in Fig. 4- and each of said slots receives a stud 1 61 having a knife edge 62. Eachstud has a reduced slabbed portion 63 to fit in theasso ciated slot 60 to prevent rotation thereof and each stud isfurther provided with a screw 64 by means of which it may be held tightly in dotted lines the corres h n t l 1 e l attcr position on the arm 59 and also zuljuslicd VH1? tically in the slot 60..

In operation the jacquard mechanism will pull upon one or another of the cords 53 or so that the levers 50 will be rocked either to the right or to the l aboiiit the stud 51. lWhen lever 50 moves '1 the posit on indicated in full lines in l. 2 to that shown in ndino' arm 56 will i moved downwardly so that the knife edge 5'? Wlll slide over the upper inclined face of the lug 61 and pass knife edge {32 of the lugs. Th pressure of spring 58 will thereafter serve to continue the movement of the level-'50 even though the cord should not receive its full .mov nent due to the stoppage of the loom. at an intermediate position or for any other reason. Adjustment of the posinions of the lever 50 may be obtained by varv ing the vertical position. of the lug 61, the

ra'isingof the lrgs carrying the'armfilr upwardly and therefore causing a slight right hand movement. of the levers 50 so that the hoollsfil may be positioned with respect'to the knife 23.

From the foregoing it will be seenthat I have provided simpleandready means for I I i tion of-the levers 50 and alrin proper action between the co e e .ges, the lugs 61be1ng free from the ob ection previously noted with reg ard to I the plnn'gers heretofore vusedand the whole arrangement occupying less space than that required in the structure setforth in my copending application. i p

Having thus described my invention it will be apparent that changes and modifications may be made therein by those skilled in the without departing from the spirit and scope of the invention, and. 1 do not wish to be limited to the details herein d isclosed but what I claim is:

1. In a jacquard indicator for the ho tion of a loom a member connected to movable by the jacquard mechanism, a regularly mov'ng actuate a pair of elem operatively (tormented path of the actuator and a pair of cooperating devices acting to complete a motion 01 the member initiated by the jacquard ms i hanism, one of said devices being; connected to and movable with the member. the other device being capable of lining; any one of :1 mm.- lucr offixed posit ions relative] y tothe member is at rest; the variation of the position of said second device rendering possible a variation .in l-llill lille'fti which said devices will begin to complete a motion of the member which is initiated by the acquard mechanism. I i

2. In a jacquard indicator for the box motion of a loom, a member connectedto and movable by thejacquard mechanism, a regularly moving actuator, a pair of elements op y I I to the box motion and n'iovahlo with the member relatively to the ion eratively connected tothe box motion and movable with the member relatively to the path of the actuator, and a pair of cooperating devices acting to complete a motion of the member initiated by the jacquard mechanism,

one of said devices being connected to and movable with the member, the other device being capable of assuming any one of a-number of fixed positions relatively to themember when the latter is at rest, the variation of the position of said second device rendering possible a variation in the time at which said devices will begin to complete a motion of the member which is initiated by the jacquard mechanism, one of said devices being yieldable with respect to the other device.

In a jacquard indicator for the box motion of looms, a lever movable und 1' control of the jacquard mechanism, a regularly mov ing actuator, a pair of hooks operatively positioned with respect to the actuator by the lever, connections between the hooks and the box motion, a pair of members each having a knife edge and co-acting to complete a movement of the lever which is initiated by the jacquard mechanism, one of said members being operatively connected to the lever, and a support for the other member with respect to which said other member may assume any one of a plurality of fixed positions, whereby the hooks may be positioned with respect to the actuator by varying the position of said other member.

4. In a jacquard indicator for the box motion of looms, a lever movable under control of the jacquard mechanism, a regularly movin actuator a aair of hookso erativel aosi tioned with respect to theactuator by the lever, colmections between the hooks and the box mot-ion, an element pivoted to the lever and having a knife edge, a second element having a knife edge to cooperate with the knife edge of the element to complete a motion of the lever initiated by the jacquard mechanism, and means to hold said second named element in any one of a plurality of fixed positions with respect to the first named clement, whereby the position of the lever and the hooks may be varied with respect to the actuator by varying the position of the second. named element.

In. a acquard indicator for the box motion of looms, a lever movable under influence of the jacquard mechanism, a pair of hooks positioned by the lover, a regularly moving actuator, the lever moving the hooks intoand out of operative position with respect to the actuator, connections between the hooks and the box motion, and a pair of elements to determine the position of the lever and complete a movement thereof initiated by the jacquard mechanism, one of said elements beingoperatively connected to the lever, and one of said elements being' movable with re spect to the axis of the lever, whereby the vary theposition the actuator.

6. In a jacquard of the hooks relatively to indicator for the box motion of looms, a lever mov'ableunder influence of the acquard mechanism, apair of hooks positioned by the lever,a regularly moving actuator, the lever moving the hooks into and out of operative position with respect to the actuator, connections between the hooks and the box motion, a pair of positioning elements for the lever one of which is relatively fixed and the other of which moves with the lever, and means to vary the normal position ofone of the elements with respect to the lever when the latter is in normal position, whereby the position of the hooks may be varied with respect to the actuator.

7. In a jacquard indicator for the box motion of looms, a lever movable under control of the jacquard mechanism, an actuator having a regular movement, a pair of hooks having connection with the lever and being operatively positioned thereby with respect to the actuator, connections between the hooks and the box mot-ion, a member pivotally mounted on the lever and having a knife edge, a second relatively fixed member also having a knife edge defined by inclined surfaces, said knife edges of the members cooperatingto complete a motion of the lever initiate'dby the jacquard mechanism.

8. In a jacquard indicator for the box motion of looms, a lever movable under control of the acquard mechanism, an actuatorhaving a regular movement, a pair of hooks having connection with the lever and being operatively positioned thereby with respect to the actuator, connections between the hooks and the box motion, a member pivotally mounted on the lever and having a knife edge, asecond relatively fixed member also having a knife edn'e defined by inclined surfaces, said knife edges of the members cooperating to complctea motion of the lever initiated by the jacquard mechanism, one of said members being yieldable.

9. Ina jacquard indicator for the box motion of looms, a lever movable under control. of the jacquard mechanism, an actuator having a regular movement, a pair of books. hav-' ing connection with the lever and being operatively positioned thereby with respect to the actuator, connect-ions between the hooks and the box motion, a member" pivotally mounted on the lever and having a knife edge, a second relatively fixed member also having a knife edge defined by inclined surfaces, said knife edges of the members cooperating to complete a motion of the lever initiated by the jacquard mechanism, and means to hold the member pivotally mounted on the lever yieldingly in engagement with the other member.

10. In a jacquard indicator for the box motion of looms, a lever movable under action I of the jacquard, a. regularly moving actuator,

a pair of hooks operatively connected to the lever and positioned thereby with respect to 5 the actuator, connections between the hooks and the box motion afixed 1115;, and an arm j pivote'dto the lever, said lug and arm having oo-acting knife edges, the arm moving about ELBRIDGE R. HOLMES.

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