US1588664A - Reverse motion for looms - Google Patents

Description

June 15 1926.

E. J. DACEY ET AL REVERSE MOTION FOR LOOMS Filed Dec. 1, 1925 2 Sheets-Sheet 1 [nrenzors Edward J Dagey A/e/"zf A. 60rd) E. J. DACEY ET AL REVERSE MOTION FOR LOOMS June 15 1926.

Filed Dec. 1, 1925 2 Sheets-Sheet 2 59 55 I; 5W tun A/Am A. Gomn Patented June 15, 1926.

UNITED STATES PATENT OFFICE.

EDWARD J. IDACEY AND ALBERT A. GORDON, OF WORCESTER, MASSACHUSETTS, AS- SIGNORS TO CROMPTON & KNOWLES LOOM WORKS, OF VJORCESTER, IVIASSACHU- SETTS, A CORPORATION OF MASSACHUSETTS.

' I nnvnnsn Morton FOR LOOMS.

Application filed December 1, 1925. Serial No. 72,586.

This invention relates to devices for re versing and periodically stopping a loom when reversed and it is the general object of the invention to provide such a device controlled from a regularly moving part of the loom and operative only at such times as it is desirable to eifect reversal of the loom.

In our co-pending application Serial No. 59,414 we have shown the shipper mechanism of a'loom as provided with a lever movable to effect reversal of the loom and at the same time to prevent the shipper handle from being locked or held mechanically in normal running position. e find when this device is applied to such looms as those employed for weaving lVilton carpets that it is desirable to give the operator a warningjas to the proper time when the loom should be stopped and it is accordingly a more particular object of our invention to provide a peg or projection on one of the constantly rotating gears of the loom which shall be operative to move the shipper handle toward stopping position at periodic intervals when the loom driving mechanism is reversed.

It is a further object of our invention to construct a device as hereinbefore set forth which will permit repeated periodic stop-- pings while the loom is reversed.

It is a still further object of our invention to provide a reversing lever with devices effective to act on a reversing switch having a lost motion device by which a portion of the movement of the reversing lever maybe employed to effect reversing of the switch.

With these and other objects in view which will appear as the description proceeds our invention resides in the combina tion and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings wherein we have shown a convenient embodiment of our invention Fig. 1 is a front elevation of the right hand end of a Wilton carpet loom having our invention applied thereto,

Fig. 2 is-a vertical section on line 22 of Fig. 1,

Fig. 3 is a fragmentary front elevation of certain parts shown in Fig. 1, said parts being shown in reversing position,

Fig. 4 is a fragmentary section showing the mechanism set forth in the lower part of Fig. 2 in reversing position,

Fig. 5 is a section on line 55 of Fig. 2 showing the switch set for forward running,

Fig. 6 is a view similar to Fig. 5 but showing the switch set for reverse running, anc

Fig. 7 is a top plan view taken in the direction of arrow 7, Fig. 3.

In the accompanying drawings we have shown a loom side 10 and an auxiliary frame 11 rigid with respect to the loom side. A. bracket 12 secured to the frame 11 supports a motor 13 having a pinion 14 which meshes with a gear 15 freely rotatable on shaft 16. Said gear 15 has a friction face 17 positioned to have contact with a second friction face 18 secured to a plate 19 having a sliding key connection with shaft 16. Said plate 19 has a grooved hub which receives a pin 20 moving with a shipper lever 21 pivoted as at 22 t0 the bracket 12.

The lower end of said lever 21 is con nected by link 23 to a shipper handle 24 pivoted at 25 and held normally to the left as shown in Fig. 1 by spring 26. The upper end of the shipper handle extends through a slot 27, see Fig. 7, formed in a bracket 28 secured to the loom side 10 and said slot 27 is provided at its outer end with a rearwardly extending notch 29 which is normally occupied by the shipper handle when the loom is running forwardly.

A pinion 30 is secured to shaft 16 and meshes with a gear 31 secured to a crank shaft 32 which operates the lay (not shown) of the loom. A smaller gear 33 is secured to the crank shaft and meshes with a gear 34 secured to the picking shaft 35 of the loom.

The ratio of gear 33 to gear 34 will depend upon the character of the loom, that is, if the loom be a so-called three shot lVilton gear 34 will be three times the diameter of gear 33 and likewise if the loom be a twoshot Wilton then gear 34 will be twice as large as gear 33. As set forth herein the gearing is illustrated as for a three shot Wilton and it is to be understood that the picking shaft 35 has secured thereto a plate (not shown) having three equally spaced picking tappets by means of which the shuttle is. picked.

Upstanding from bracket 28 is an arm 36 through which passes the forward end of reversal. of motor 18.

a rock shaft 37. Said shaft 37 has secured thereto a reversing lever 38 provided with a forwardly extending lug 39 positioned to overlie the notch 29 when the parts are moved to the reversing position shown in Fig. 7. Said lever 38 is provided with a rearwardly extending stud 40 which receives the upper end of an oifset rod head #ll secured to the upper end of rod 42. The matter thus far described is substantially the same as set forth in our aforesaid co-pending application.

In carrying out our present invention we locate the reverse switch box 43 adjacent the rear end of rock shaft 37 shown in Fig. 2. Said switch box provided with an angularly movable arm l i provided with a forwardly extending stud 45 which is positioned for engagement with both lingers 4:6 and 4-7 of the lever is. Said lever 18 has a hub 49 which receives and is secured to the rear end of rock shaft 37, see Fig. 2. Said hub is angularly and longitudinally adjustable on said rock shaft and also receives an arbor 50 on which the switch handle l i is mounted and to which the electric circuit reversing switch inside the switch box is secured. By this mechanism it is possible to compensate for slight variations in the lengths of the rock shaft 37 and pin 50 and also the setting of the reverse switch box at).

The lower endof rod 42 is provided with a fork 51 having cam faces 52. A pair of bearings 53 are secured to the loom f nine 10 and receive an angularly and longitudinally movable knock-oil shaft 5 1 to the forward end of which is secured a lever 55 positioned for engagement with the shipper handle 24 when moved to the left as indicated in Fig. 8. The intermediate portion of said knockoif shaft 5% has secured thereto a collar 56 between which and the forward bearing 53 lies a compression spring 57 which tends normally to move the shaft rearwardly.

, Secured to the rear end of shaft 54 is a lever 58 which as shown in Fig. 2 is normally held in forward position by reason of the fact that the broad part of the wedge 51 lies between lever 55 and forward bearing 53. When said lever 58 is in the forward position shown in Fig. 2 it will be out of the path of pins .59 secured to the gear 34.

When it is desired to reverse the loom it will be stopped and reverse lever 38 will be thrown from the position shown in Fig. 1 to the position shown in Figs. 3 and 7, the latter figure showing the boss 39 overlying "the notch 29 to prevent the shipper handle 24 from entering said notch. This movement ofthe reverse lever 38 moves the switch arm 44 and lever 48 from the position shown in Fig. 5 'to that shown in Fig. 6, where it will be seen that the finger i? has moved the re verse arm 44 to reversing position to cause This movement of lever is also accompanied by an upward movement of wedge 51 so that the thin portion thereof lies between lever 55 and beari 523, thus permitting spring 5'? to move lev r rearwardly into the path of pins 59.

with the parts in the position just described the operator will next move the shipper handle to the right as shown in dotted lines in Fig. 1 which will result in bringing the friction faces 17 and 18 together to cause movement of shafts 16, 32, and This causes movement of gear as indicated in Fig. 1 and pins 59 will move until one of them engages lever 58 to rock shaft 54: to cause movement of lever to the left as shown in Fig, 3, thus moving the. shipper hne pohandie from the dotted to the full sition in said Fig. 3. This gives a warning to the weaver that the shipper handle should be thrown off and it will be noted that if the warning not heeded the shipper handle will be moved positively to stopping position. It is to be understood, of course, that the weaver must hold the shipper handle in running position so long as the loom is reversed.

it is to be understood that if the loom be a three shot llilton there will be three pins 59 and if it be a two shot Wilton then there will be but two pins 59, but in each instance lever 58 will be given a positive movement to stop the 1001 each pick of the loom preferably when the lay is on back center and the shed is open for the passage of the shuttle and withdrawal of the wires. Obviously, shipper handle 24 can be moved to stop the loom without an attendant motion on the part of reverse lever 38.

From the foregoing it will be seen that we have provided reversing mechanism for a loom so arranged that the shipper handle will be given a positive movement to stop the loom periodically at. the same relative time in the cycle of the loom, thus relieving the weaver of the'necessity of paying close attention to the stopping of the loom. It will further be seen that the device is so constructed as to permit repeated periodic stoppings when the loom is reversed with a single setting of the reverse lever, Also, it will be seen that the reverse switch is controlled by a shaft carrying the reverse lever and so connected as to compensate for slight variations in the connections between the switch and the s'haft3j7.

Having thus described our invention it will be apparent that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention, and we do not wish to be limited to the details herein disclosed but what we claim is 1. In a loom, a shipper handle movable toward and from running position, a constantly moving member in time with the loom, reversing mechanism for the loom, and means effective only when the loom is reversed to establish operative connection between the member and the shipper handle at periodic intervals to move the shipper handle from running position,

2. In a loom, a shipper handle movable toward and from running position, a member movable in timed relation with the loom, connections for the shipper handle having a portion thereof normally out of the path of the loom, and reversing mechanism effective to reverse the loom and move a portion of said connections in the path of the member to give said shipper handle a movement from running position.

3. In a loom, a shipper handle movable toward and from running position, a member moving in timed relation with the loom, connections between the shipper handle and the member normally out of operative relationship with the member, reversing mechanism to effect reversal of the loom, and means to move a portion of the connections into operative relationship with the member when the reversing mechanism is moved to reverse the loom.

4. In a loom, a shipper handle movable toward and from running position, a member moving in timed relation with the loom, connections between the shipper handle and the member normally out of contact with the member, reversing mechanism to effect reversal of the loom, and means to move a portion of the connections into operative relationship with the member when the reversing mechanism is moved to reverse the loom,

said shipper handle being capable of a plurality of movements from running position for a single setting of the reversing mechamsm.

5. In a loom having a shipper handle, a guide for said handle effective to hold the same in running position when the loom is running in a forward direction, and a reverse element operative when moved to reversing position to prevent the shipper handle from being held by the guide in running position, in combination, a member movable in timed relation with the loom, and means controlled by the reverse element and operative by the member to give the shipper handle periodic movements toward non-running position when the loom is running in a reverse direction.

6. In a loom having a shipper handle, a guide for said handle effective to hold the same in running position when the loom is running in a forward direction, and a reverse element operative when moved to reversing position to prevent the shipper handle from being held by the guide in running position, in combination, a rotating member movable in timed relation with the loom, and means controlled by the reverse element and movable into operative relationship with the member when said element is moved to loom reversing position, said means moving the shipper handle from running position at predetermined times in the pick of the loom.

In testimony whereof we have hereunto afiixed our signatures.

EDWARD J. DACEY. ALBERT A. GORDON.

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