US1307012A - Assigbtor to cromptoit - Google Patents

Description

H. LE DOUX.

STOP MOTION FOR LOOMS.

APPLICATION FILED MAR, 20. 1917.

1,307,01 2. Patented June 17, 1919.

5 SHEETS-SHEET 1.

3v Ma M A H. LE noux.

ST OP MOTION FOR LOOMS.

APPLI'CATION FILED MAR. 20, 1911.

Patented June 17, 1919.

5 SHEETS-SHEET 2.

. H. LE DOUX.

STOP MOTION FOR LOOMS. APPLICAITION FILED MAR.'20. 1911.

1,307,012. Patented June 17', 1919.

5 SHEETS-SHEET 3- m: NORRIS "mes m. Fucw-Lrmm. wksnma ran. 0. c.

H. LE DOUX.

STOP MOTION FOR LOOMS.

APPLICATION FILED MAR. 20. I917.

1,307,012. PatentedJune 17, 1919.

5 SHEETS-SHEET 4- m5 NORRIS FEYERS cm. Pnomuma. wismmirvu, 04 c.

H. LE ooux.

STOP MOTION FOR LOOMS.

APPLICATION FILED MAR-20.1917.

1 9307,01 2. Patented June 17, 1919.

5 SHEEIS-SHEET 5.

sTa Es EaTEET oEETcE.

HECTOR LE DOUX, 0E WORCESTER, MASSACHUSETTS, ASSIGNOR To CEoMrToE & KNOWLES LOOM WORKS, or WORCESTER, MASSACHUSETTS, A ooEroEATIoE OF MASSACHUSETTS.

' STOP-MOTION FOR LOOMS.

V eonora.

Specification of Letters Patent.

Patented June 1?, 1919..

To all whom it may concern Be it known that I, HECTOR LE DoUx, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Stop-Motion for Looms, of which the following is a specification.

This invention relates to a stop motion for looms, particularly designed for use in a loom having a positive shuttle motion.

It is the object of my invention to provide an improved stop motion for looms having a positive shuttle motion, which shall become operative to stop the loom whenever a shuttle is not properly boxed.

With this general object in view, an important feature of my invention relates to the provision of shuttle feelers positioned to engage a shuttle at each end of its path of travel, and connected to control loomstopping mechanism.

In the double shuttle loom shown in the drawings, separate pairs of feelers are provided for the upper and lower shuttles, and all of said feelers are connected to control a Single loom-stopping mechanism. An additional feature of my invention relates to the provision of connections whereby a weft detector or filling fork independently controls the Same stopping mechanism.

Further features of my invention relate to the provision of means for periodically rendering the shuttle feelers inoperative, and to the provision of a reciprocating vibrator cooperating with. a vibrator-engag- :ing member to stop the loom whenever the weft fails or a shuttle is not properly boxed.

My invention further relates to certain arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of my invention is shown in the drawings in which Figure 1 is a front elevation. of a loom having my improvements embodied therein Fig. 2 is a right-hand side elevation o. the loom shown in Fig. 1;

Fig. 3is a sectional side elevation taken along the line 3-3 in Fig. 1;

Fig. 4 is a front elevation of the devices for supporting and. yieldingly positioning two of the shuttle feelers;

Fig. 5 is a right-hand elevation of the parts Shown in Fig. 4;

Fig. 6 is an enlarged side elevation of the vibrator-engaging member and the connect ons by which it is moved to operative posltion;

Fig. 7 is a top plan view of the filling fork and slide, and

Fig. 8 is a side elevation of the parts shown in Fig. 7.

Referring to the drawings, I have shown a double shuttle loom having shuttle boxes 10, 11, 12 and 13 adapted to receive positively-actuated shuttles 141 and 15. The mechanism for actuating the shuttles forms no part of my invention and may be of any usual type adapted to move the shuttles simultaneously in opposite directions.

A lay L (Fig. 1) supports a reed R and is operated to beat upthe filling in the usual way. As the shuttles are continuously supported in their flight the lay omits the usual shuttle race. The operating mechanism for the lay may be of any usual type and is omitted from the drawings for the sake of clearness.

A pair of shuttle feelers 16 and 17 (Figs. 2 and 3) are provided for engaging the shuttle 141 at each end of its path of travel, and a second pair of feelers 18 and 19 are provided for engagement with the lower shuttle 15.

I will first describe the connections and operations of the feeler 16. The feeler 16 is mounted in a hub or casting 20 (Figs. 4: and 5) which is free to turn upon a fixed stud 21 rigidly supported on the loom frame F, the hub being retained upon the stud by a collar 22. The feeler 16 is yieldingly ad vanced into the path of the shuttle 1. 1 by a spring 23 connected at one end to the hub 20 and at the opposite endto a collar 24.- fixed in adjusted position on the stud 21.

A wire or rod 25 is fixed in the hub or casting 20 and extends laterally beneath a stud 26 (Fig. 2) mounted on the end of an arm 27 fast to a shaft 28 (Fig. 1) mounted in bearings in the loom frame F. A second arm 30 (Figs. 2 and 6) is fixed to the shaft 28 and is link-connected to an engaging member 31 pivoted at 32 to a lever 33 mounted upon a stud 34 on the loom frame. The lever 33 is connected by a rod or link 35 to loom-stopping mechanism, (not shown), the connections being so arranged that movement of the engaging member 31 toward the front pf the loom will cause the stopping of the 00m. r Y

The" link which-"connects the arm 30 to the member 31 comprises a part pivoted to thearm '30 and'a rod 456 pivoted to the mem- 'ber 31 and slidable in bearingson the part The link-is normally contracted by a spring 17 interposed between acollar 18 fixed to the rod io'an d one ofthe'bearings on the part 45. A-second collar 49 fixedtothe rod' 46 limits the contraction of the link.

The arm 30*a'nd' the'menrber 31 are thusconne'otedi-nsuch aWvaythat-the parts can yield if 'the arm 30 is raised while the vibrator "4'0 abovethe member 31.

When-the slnit'tle 14: "is out of the box 11, thesprin'g 23 moves the color 16 into the box andatthe same time through the rod 25, the

"arm'27, thesha'ft .28,' the arm 30 and the link the shuttle 15 fails to enter the'box 13.

15ei6 it moves the engaging-'member 31 into the path oi" the vibrator 40.

The "feeler 18 (Fig. 2) ismountedupon a'stud 50 and is providedwith a rod 51 extending :beneath the stud 26 and the arm 27 and is similarly :eii'e'ctwe to raise the member 31 intothe jpath ofthe vibrator 40 if The feeler 17 (Fig. 3) on the left-hand side of the loo'm ismountedon a fixed pivot 52 and is connected by a link 53 to "111 arm '54: fast]on a"horizontal' shaft 55 (Fig. 1) mounted in bearings in theloomframe F.

A "second arm 56 (Fig. 2) secured to the shaft 55 is connectedby a link 57 to the "hub or castin 20oi' the teeler 16. "In this way the feelers' 16*an'd' 1.7r'1are"connected to operate siin'ultaneouslyn in connection with the shuttle 1 1.

The feeler 19 is similarly connected "througlra link 00,1. shaft 61 and a second link 62 to the. hub of tl1e"feeler'18-'and the feelers 18 and 19 thus "cooperate to control the shuttle 15. I

' With these connections it will beevident that the boxing of the i shuttle 14 at either sideof'the' loom willlmver the rod 25, thus permitting the engagingunembertl to move to inoperative position.

however, cannot take placeunless the'shuttle u'ch l movement,

'16 is alsoproperly boxed and cooperates *rodbl. Thus if the shuttles are both propwith one of the feelers 1801' 19 to lower the erly boxed the member 3l'will be lowered to inoperative position, but it either shuttle is out of its proper posltion the loom stopping mechanism Will be rendered operative.

and 15.

The cam 18 which operates the vibrator 40 is rotated through the gears and pinions shown in Fig. 2, and makes several revolutions to each actuation of'the shuttles 14C The vibrator 40 is thus reciprocated several times during the rather slow travel of the shuttles from one side of the loom to the other, and would stop the loom during the fiight of the shuttles if provision were not made for moving the member 31 to inoperative position during this period.

Such provisionis shown in Fig. 3, and comprises arms 63 and 6 1 secured to the shafts-55 and 61 respectively and connected bylinks '65 and 66 to a lever 67 intermittently actuated by a cam 68 whichvrotates once for each flight of the shuttles. The rods and 66 have pin andslot connections with the lever 67, thereby providing :a

limited lost motion.

'VVhen' the lever 67 is in the position shown in Fig. 3, the feelers are free to engage the shuttles and if theshuttles are not properly boxed they are permitted by thelostxmotion connections to move farther into the boxes, thereby causing the stopping of the loom. During the greater part of the revolution of the cam 68, however, the lever (57 is moved tothe posltron shown 111 dotted lines, in

which position it withdraws each of the'teelers from its shuttle box and depresses the 'rods 25 and 51, thus permittingthe member 31 to move to inoperative position.

I have thus provided means for separately engaging eachshuttlein either shuttlebox and for stopping: the loom if either shuttle fails to box in'one or theotherof its shuttle boxes and I havefurther provided A means for "rendering-the shuttle feelers inoperative during the flight 'ofthe shuttle. Vhilethe mechanism "is shown and describedas adaptedto a double shuttle loom,

it will be evident thatcertain featuresof said mechanism may be used to equal advantage in a loom having asingle posi' tively-aetuated shuttle. My improved stop motion is shown herein in connection with m in whichthe' shuttles-are positively actuated. The particular method of 'iaetu- *ating the shuttles is, :howjever, immaterial,

and' the advantages of my invention may be fully :utilizedin a loom "in whiclrthe shuttles are not positivelyactuated.

In Figs. 7 and8 I have shown aifilling iork 7 0 mounted in a fork slide 71 slidabie 1n :a stand 72 :and' connected 'by an arm 7 3 to a short shaft '74: pivoted in the-loom 'frame' F. A second arm 7 5 (Fig. 3) mountber'31. An actuator 80( Fig. 8) is pivoted at 81 to the stand 72and isconnected by a shaft 8% (Fig. 1) mounted in bearings 85 (Fig. 8) and 86 (Fig. 2). A cam follower 87 is secured to the shaft 8t and engages a rotating cam 88 shown in dotted lines in Fig. 2.

The actuator 80 is thus continuously vibrated and upon failure of the weft the hook of the fork 70 is engaged by the actuator, thus moving the slide 71 to the left (in Fig. 8), which movement through the connections described raises the member 31 into the path of the vibrator l0, thus stopping the loom. A spring 90 returns the filling fork slide after such engagement.

I thus provide weft detecting mechanism adapted to cooperate with the shuttle feelers and I employ a single loom-stopping mechanism for use with these two sets of control devices.

a A hand shipping lever 91 is pivoted at 92 to the frame F and is connected to the lever 33 for stopping the loom manually. A spring 93 (Fig. 6) partially counterbalances the weight of the member 31 and the parts associated therewith.

Having thus described my invention, it will be evident that changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of my invention as set forth in the claims, and I do not wish to be otherwise limited to the details herein disclosed, but what I claim is 1. In a double shuttle loom, in combination, a pair of shuttles, actuating means therefor, separate shuttle feelers for each shuttle at each side of the loom, said feelers being connected in pairs so that the two feelers for each shuttle operate together, normally operative loom stopping mechanism, and connections from said feelers to said mechanism, each pair of feelers associated with :the same shuttle being independently effective to maintain said loom stopping mechanism in operative position until a shuttle is boxed in one or the other of the shuttle boxes controlled by said pair of feelers.

2. In a double shuttle loom, in combination, a pair of shuttles, actuating means therefor, separate shuttle feelers for each shuttle at each side of the loom, and means to stop the loom including a member normally maintained by said shuttle feelers in operative position but released by said feelers and permitted to move to inoperative position only when both shuttles are properly boxed either at the same or at opposite sides of the loom.

3. In a double shuttle loom, in combination, a pair of shuttles, actuatin' means therefor, separate shuttle feelers 'or each shuttle at each side of the loom, connections whereby the two feelers for each shuttle operate together, loom stopping mechanism, connections from each pair of feelers to said mechanism, whereby either pair of feelers may render said mechanism operative, a filling fork, connections whereby said filling fork may independently control said stopping mechanism, and means to render said shuttle feelers periodically inoperative, said filling fork control continuing operative.

4-. In a double shuttle loom, in combination, a pair of shuttles, actuating means therefor, loom stopping mechanism including a member movable into and out of operative position, a pair of shuttle feelers for each shuttle, connections from each pair of feelers to said member whereby each pair of feelers is rendered independently effective to move said member to operative position, a filling fork, and additional connections from said filling fork to said member where by said filling fork is rendered effective to independently move said member to operative position.

5. In a double shuttle loom, in combination, a pair of shuttles, actuating means therefor, a pair of shuttle feelers for each shuttle, a vibrator, a cam to actuate said vibrator, means to rotate said cam continuously, a movable vibrator-engaging member, connections through which said member when engaged by the vibrator is effective to stop the loom, and means independently controlled by each pair of shuttle feelers effective to control the movement of said member into and out of the path of said vibrator.

In testimony whereof I have hereunto affixed my signature.

HECTOR LE DO UX.

Gopieu of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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