US3136342A

US3136342A - Terry reed motion

Info

Publication number: US3136342A
Application number: US163143A
Authority: US
Inventors: Joe T Short
Original assignee: Draper Corp
Current assignee: Draper Corp
Priority date: 1961-12-29
Filing date: 1961-12-29
Publication date: 1964-06-09
Anticipated expiration: 1981-06-09

Description

June 9, 1964 J. T. SHORT TERRY REED MOTION 4 Sheets-Sheet l Filed Dec. 29, 1961 BY AM M M ATTORNEKG June 9, 1964 .1. 1-. SHORT TERRY REED MOTION 4 Sheets-Sheet 2 Filed Dec. 29, 1961 M1,, RNEYS INVENTOR JOE 7T5HOF7;

M ATTO June 9, 1964 J. T. SHORT 3,136,342

TERRY REED MOTION Filed Dec. 29. 1961 4 Sheets-Sheet 5 56 12 u 9 LU HIM...

INVENTOR JOE rah 0R7;

United States Patent 3,136,342 TERRY REED MOTTQN Joe T. Short, West Point, Ga., assignor, by mesne assignments, to Draper Corporation, Hopedale, Massachusetts Filed Dec. 29, 1961, Ser. No. 163,143 12 Claims. (Cl. 139-46) This invention relates to a terry reed motion and, more particularly, to a terry reed motion for shuttleless looms.

In recent years, high speed shuttleless looms which have many advantages over the conventional shuttle looms have been developed. One important advantage is that no filling supply package need be carried in a shuttle. Instead, the weft threads are inserted by thread carriers which are supported on tapes and driven from opposite sides of the loom. Since the carriers are much smaller than shuttles, the shed can be smaller than that of a shuttle loom. Also, since the carriers traverse the shed more rapidly than shuttles, a shuttleless loom operates at a higher speed than a shuttle loom.

Another advantage of the shuttleless loom is that there are considerably fewer filling breaks, because the shuttleless loom does not require the frequent replacement of empty quills with full quills in the shuttle. The filling carrier of a shuttleless loom draws its filling yarn from a large package of yarn located at one side of the loom. The patent to Budzyna et al., No. 2,604,123, is an example of this type of shuttleless loom.

The inherent advantages of the shuttleless loom are very important in the production of terry cloth. The small size of the shed results in less tension being applied to the pile and ground warp threads as the harnesses move to their extreme open position. This practically eliminates the possibility of yarn being pulled back or withdrawn from the previously formed loops in such a manner as to give the face of the fabric an uneven appearance. The number of warp end breaks is also greatly reduced with reduced tension being exerted on the warp threads.

On a conventional shuttle loom, the lay is operated by a crankshaft which causes the lay beam to oscillate continuously. As the lay beam leaves the beat up or front position and moves toward the rear, the shuttle then enters the small shed opening and starts its course across the raceplate of the loom. It is necessary for the shuttle to enter the shed as early as possible so that it will have ample time to complete its course before the lay beam again reaches its forwardmost position. In terry cloth looms the drag on the top and bottom pile yarns by the shuttle upon entering and leaving the shed causes these yarns to be pulled back from the previously formed loops. This has always been a problem with shuttle looms and it is difficult to produce terry fabrics having loops of uniform height at the selvages of the fabric. In the shuttleless loop, the lay beam moves to the back position and the harnesses are opened fully before the filling carrier enters the shed. Thus, there is no drag on the selvage yarns. Since the filling carrier traverses the shed very rapidly, the cycle time of a shuttleless loom is'shorter than that of a shuttle loom, even though the harnesses are fully open before the carrier enters the shed. The rapid movement of the shuttleless loom is particularly advantageous in producing terry cloth. The fast and intermittent oscillation of the lay beam and reed on a shuttleless loom beats up the filling yarn and forms loops of a more uniform height than looms with a slower lay beam and reed speed.

To produce terry fabrics it is necessary that the reed move relative to the lay beam. In the making of a typical terry fabric having three weft insertions per cycle, the reed is displaced slightly from the edge of the lay beam 3,136,342 Patented June 9, 1964 Ice during two successive insertion of weft threads to provide partial beat up strokes. After the insertion of the third weft thread, the reed is moved adjacent to the lay beam to provide a full beat up, duringwhich the pile loops are formed.

Terry reed motions which provide several partialbeat up strokes followed by a full beat up stroke have been used for many years on conventional shuttle looms. They have not been found to be suitable for use on shuttleless looms for several reasons. As previously described, the motion of the lay beam of a shuttleless loom is not uniform. The lay beam remains stationary in the rearward position during the insertion of the filling yarns, and then it moves rapidly forward and back again to provide the beat up. The length of travel of the reed relative to the fell of the cloth is about half of that of a conventional shuttle-type terry loom. In view of the high a speed of operation of a shuttleless loom, it will be apparent that its terry reed motion is subject to large acceleration forces.

The position of the reed relative to the lay beam determines the extent of the beat up and therefore the position of the reed during the partial beat up must be rigidly fixed if the loom is to produce terry fabrics with uniform pile heights. The acceleration forces tend to dislocate and vibrate the reed. In'conventional terry looms the lay beam is oscillated by a crank mechanism at a relatively slow speed and the reed mechanisms which operate successfully under these conditions are not sufficiently rigid to be satisfactory in a high speed shuttleless loom.

Accordingly, in view of the advantages to be gained by producing terry cloth on shuttleless looms and the disadvantages and inadequacies of prior art terry reed motions, it is an object of this invention to provide a terry reed motion for shuttleless looms. I

It is a further object of this invention to provide a terry reed motion for a shuttleless loom in which the reed is rigidly secured while in open position to provide a uniform partial beat up.

It is another object of this invention to provide a terry reed motion in which the acceleration forces are minimized.

In accordance with a preferred embodiment of the invention, lay swords are mounted at the opposite sides of a loom and support a lay beam. The lay swords are pivoted on a rocker shaft and are oscillated by means of cams which engage cam followers on the lay swords. A reed arm is mounted on each lay sword and a reed is secured the'rebetween. Each reed arm is displaced relative to the lay sword by means of a toggle mechanism mounted between the lay sword and the reed arm. A latch cooperates with the toggle mechanism to prevent displacement of the reed arm when it is in the open position. The toggle linkage is operated positively by a cam to close the reed on full beat up strokes of the loom.

This preferred embodiment of the invention is illustrated in the accompanying drawings, in which:

FIGURE 1 is a cross-sectional view of a typical woven terry fabric;

FIGURE 2 is a side elevational view of the terry reed motion of this invention, with the reed closed;

FIGURE 3 is a side elevational view of the terryreed motion with the reed open;

FIGURE 4 is a perspective view of a portion of the loom showing the position of the reed and lay during insertion of a filling yarn;

FIGURE 5 is a perspective view of a portion of the loom showing the reed in open position;

FIGURE 6 is a perspective view similar to FIGURE 5 but showing the reed in closed position; and

FIGURE 7 is a detail view, partially in section, of the push rod assembly.

A typical example of a terry fabric is illustrated in FIGURE 1. The fabric is woven with ground warp yarns 1, pile warp yarns 2, and filling or weft yarns 3. It is a conventional practice in making terry cloth to mount the reed on the lay swords of the loom in such a way that it is movable relative to the lay beam to accomplish selectively a partial or a full beat up. The reed is spaced from the beam to provide a partial beat up after each of the first two filling yarn insertions in the cycle. After the third insertion of filling yarn, the reed is closed, or moved closer to the lay beam, so that a full beat up occurs. During the full beat up, tension is released from the feed rolls for the pile yarns 2, and, since the ground warp yarns '1 are restrained from movement, loops of pile yarn are formed as the weft threads are pushed against the fell of the cloth on the lay beam by the reed.

It is customary to mount a lay sword 4 on each side of a loom to support a lay beam 5, as shown in FIGURE 2. The lay swords 4 are pivotally mounted on a rocker shaft 6, and they are oscillated in unison to move the lay beam 5 relative to the fell of the cloth during operation of the loom. The oscillation of each of the lay swords 4 is brought about by cams 7 and 8, secured to a cam shaft 9, and cam followers 10 and 11, rotatably mounted on the lay sword 4. The cam followers 10 and 11 cooperate with the cams 7 and 8, respectively, to provide positive displacement of the lay swords 4 about the rocker shaft 6.

A reed 12 extends across the loom parallel to the lay beam 5 and is secured at its opposite ends to a reed arm 13. Each of the reed arms 13 is pivotally mounted on a stud 14 carried by the adjacent lay sword 4. Displacement of the reed arms 13 relative to the lay swords 4 is controlled by linkages which alternatively lock the reed 12 in a position adjacent to the lay beam 5, as shown in FIGURE 2, and displace the reed 12 from the lay beam 5, as shown in FIGURE 3. The first position, with the reed closed, provides a full beat up, and the second position, with the reed open, provides a partial beat up.

Movements of the reed arms 13 relative to the lay swords 4 are controlled by a cam 15 on a camshaft 16 mounted in the center of the loom between the lay swords 4. A conventional gear train mechanism connects the camshaft 16 in timed relation to the camshaft 9. In a machine set up for making the typical terry weave with three weft insertions per cycle, there is a three to one ratio between the speed of the lay sword camshaft 9 and themed camshaft 16. Thus, the reed cam 15 actuates the reed mechanism once during every three revolutions of the lay sword camshaft 9. The angular position of the reed cam 15 relative to that of the lay sword cams 7 and 8 is such that the reed mechanism is actuated to open and close the reed during the dwell of the lay beam in the rearward position thereof.

A cam follower 17 is journaled on an idler shaft 18 and secured to a lever 19. The reed motion camshaft 16 does not extend the full width of the loom, but is mounted in the center of the loom so that there is sufficient clearance for the lever 19 to pass between the end of the camshaft 16 and the lay sword 4.

A bar 20 is secured to, and extends outward from, the lay sword 4 in the space between the lay sword and the reed arm 13, and a toggle bracket 21 is attached to the end of the bar 20. A second toggle bracket 22 is secured to the reed arm 13 in substantial alignment with the bracket 21. A pair of

toggle links

23 and 24 are pivotally mounted in their respective toggle brackets 21 and 22 and their proximate ends are secured together by a pin 25. The toggle link 23 is in the form of an L and one end of an adjustable pushrod unit 26 is attached to the end of the toggle link 23 by a pin 27. The opposite end of the pushrod unit 26 is pivotally attached to the lever 19 by a pin 28. W

The pushrod unit 26 is illustrated in detail in FIGURE 7. The unit includes a sleeve 26a, a rod 26b slidably mounted in the sleeve 26a and a spring 260 which is 4 compressed between the closed end of the sleeve and the end of the rod. A spring 29 is connected beween the pushrod unit 26 and the reed arm 13 to urge the toggle linkage and the pushrod unit 26 toward the collapsed position of FIGURE 3.

A stop bracket 30 having an upturned flange 31 is secured to the bar 23 by a screw 30a. When the reed is in the open position of FIGURE 3, the flange 31 abuts against the edge of the reed arm 13. A slot 35b in the bracket 30 permits longitudinal adjustment of the bracket relative to the bar 20. A latch 32 is pivotally mounted on the reed arm 13 to overlie and selectively engage the flange 31. A strut 33 is pivotally attached at one end to a collar 33a which is secured by means of a set screw 33b to the rod 261) of the pushrod unit 26. The opposite end of the strut 33 is provided with a slotted opening 34 and pin 35 on the latch 32 cooperates with the slot 34 to raise or lower the latch during corresponding movement of the strut. Hence, the pushrod unit 26 serves to operate both the toggle and the latch 32. When the rod 26b is displaced upwardly by the lever 19 from the position shown in FIGURE 3, the latch 32 is raised out of engagement with the flange 31. The position of the collar 33a on the rod 26b is adjusted by means of the set screw 33!) so that the latch 32 is swung upwardly by means of the strut 33 a sufiicient distance to clear the top of the flange 31 before the sleeve 26a is engaged by the collar 33a to extend the toggle linkage. As shown in FIGURE 2, the collar 33a bears against the end of the sleeve 26a to maintain the toggle in its extended position. Thus, the pushrod unit 26 accomplishes a smooth closing of the reed, i.e. movement from the position shown in FIGURE 3 to that shown in FIGURE 2.

When the lever 13 moves downwardly, the collar 33a also moves downward to permit the spring 29 to collapse the toggle linkage. At the same time, downward movement of the strut 33 permits the latch 32 to fall. The flange 31 is rounded so that the curved end of the latch rides over the flange 31 to lock the flange 31 to the reed arm 13 when the flange abuts against the reed arm 13. It should be noted that the slot 34 at the upper end of the strut 33 cooperates with the pin 35 on the latch 32 in such a way as to permit a limited amount of relative movement between the strut 33 and the latch 32. This feature makes it possible, as the loom is operating at high speeds, for the latch 32 to ride over the flange 31 after the collar 33a has reached its lowermost position.

As previously described, shuttleless looms operate at a high rate of speed and consequently the reed mechanism changes its position rapidly. The combination of the

springs

26c and 29, the pushrod unit 26 and the slot 34 between the strut 33 and the latch 32 accomplishes a smooth transition from one position of the reed to the other. It is essential that the reed position be changed smoothly since vibration of the reed causes variations in the position of the reed relative to the lay beam. If the position of the reed is not uniform during each beat up stroke, pile loops of uniform height cannot be obtained and the fabric produced is of inferior quality.

In the operation of a shuttleless loom, filling yarns are inserted by a carrier which is propelled on a rod or tape from one side of the loom through the shed. In an improved version of the shuttleless loom, filling carrier tapes are provided at opposite sides of the loom and both tapes are propelled through the shed toward the center at the same time. One of the tapes carries the filling yarn and transfers it to the opposite tape which, in retracting, pulls the yarn through the shed. This type of filling carrier mechanism is illustrated and described in the United States patent to Budzyna et al. No. 2,604,123, to which reference may be made for a more complete disclosure.

As in conventional terry loom pile warp threads 36 and ground warp threads 37 (FIGURES 4 and 6) are drawn separately from a pile warp beam and a ground warp beam and pass through a standard warp stop motion and through two pile warp harnesses and two ground warp harnesses. Only the pile warp harnesses 38 are illustrated in FIGURES 4 and 6. The harnesses form the warp yarns into a shed 39 (FIGURE 4) through which the filling thread is inserted. The woven fabric 40 is drawn away by a conventional take up roll 41. In its travel to the take up roll 41, the woven fabric 40 passes through conventional temples 42.

The filling yarn inserting mechanism is illustrated partially in FIGURES 4, 5 and 6. Horizontal guides 43 are mounted at opposite sides of the loom in position to be aligned with the top of the lay beam 5 when it is in its rearmost position. While the lay beam 5 is in its rearmost position, a filling carrier 44 is propelled through each of the guides 43 and into the shed 39. One of these carriers 44 takes the filling thread from one side of the loom to the center of the shed and the other carrier picks up this thread at the center of the shed and moves it the rest of the way across the loom.

The camshaft 9 which controls the motion of the lay sword 5 is connected by conventional means with the filling carrier mechanism so that the movements of the lay beam 5 and the filling carriers 44 are coordinated. The camshaft 9 and the cams 7 and 8 rotate continuously, and it will be noted from the shapes of the cams 7 and 8 that during a major portion of each cycle of lay operations, the lay swords 4 are in the rearmost positions thereof. During a minor portion of each cycle, the lay swords 4 swing forwardly and then rearwardly, to provide a beat up without a dwell in the forward position. The cam shaft 16 rotates in timed relation to the camshaft 9 in the ratio of three to one so that for each rotation of the camshaft 16, the camshaft 9 makes three revolutions. Hence, the cam actuates the reed motion on every third beat up.

A partial beat up occurs when the terry reed motion is in the position shown in FIGURES 3 and 5. The cam follower 17 rides on the lower portion of the cam and the toggle mechanism is collapsed. The latch 32 locks the flange 31 against the edge of the reed arm 13. Since the reed arm 13 remains in the open position during two cycles, it is subjected to acceleration forces in the rearward and in the forward direction during the course of each cycle. The combination of the flange 31 which abuts against the edge of the reed arm 13 and the latch 32 which engages over the flange 31 provides a positive lock for the reed arm 13 so that the position of the reed 12 relative to the lay beam 5 is uniform during each partial beat up. This is important in providing a uniform pile height.

After the second partial beat up, the cam follower 17 rises to the high portion of the cam 15 and the lever 19 swings upwardly to close the toggle mechanism. At the same time, the strut 33 swings the latch 32 upwardly to permit the toggle mechanism to close. In its closed position, the toggle mechanism prevents movement of the reed arm 13 relative to the lay sword 4 during the rapid motion of the lay swords and the lay beam 5 in the full beat up stroke. It will be seen in FIGURES 2 and 6 that in the closed position, the reed 12 lies closely adjacent to the lay beam 5. It is important that this position of the reed be constant throughout each repeated cycle to provide a constant pile height.

Following the full beat up, the cam follower 17 returns to the low portion of the cam 15 and the lever 19 swings downwardly to collapse the toggle. After the toggle has begun to collapse, the strut 33 moves downward with the pushrod 26 permitting the latch 31 to fall downward to lock the flange 31 against the edge of the reed arm 13.

The filling carriers 44 are inserted into and withdrawn from the shed 39 before the lay beam 5 moves forwardly from its rearmost position shown in FIGURE 4. This ensures that the filling carriers will not at any time contact the threads located near the lateral margins of the shed. Hence, there are no drag forces on the pile warp yarns, and it is possible to produce loops of uniform height across the entire widthof the terry fabric formed on the loom.

A shuttleless loom has many advantages which are important in weaving a pile fabric. The fast movement of the reed caused by the increased speed and by the intermittent motion of the lay beam of a shuttleless loom beats up the filling threads and forms loops of a more uniform height than the slower, conventional looms. Another feature of the shuttleless loom is that during the intermittent lay motion, the lay beam remains at rest while the insertion of the filling thread occurs. This feature provides the quick beat up required for filling threads and allows the insertion of filling yarn without disturbance to pile threads.

The terry reed motion of this invention is particularly suitable for high speed, shuttleless looms, since the reed is locked in both the open and the closed positions and is thus able to withstand the high acceleration forces which occur during the rapid movements of the reed mechanism. The toggle mechanism prevents dislocation of the reed during full beat up wtih the reed closed and the reed latch and flange prevent dislocation of the reed during partial beat up with the reed open. Furthermore, the reed actuating mechanism is mounted on intermediate portions of the lay swords 4 and thus does not move as rapidly and is not subjected to the acceleration forces of the lay beam 4 and the reed 12.

While this invention has been illustrated and described in one embodiment, it is recognized that variations and changes may be made thereto without departing from the invention as set forth in the claims.

I claim:

1. In combination with a shuttleless loom of the type having means for forming a small shed, a lay beam supported at opposite ends by lay swords, a filling carrier mechanism for inserting filling yarns from a stationary yarn package and drive means for intermittently oscillating the lay beam and for operating the filling carrier mechanism while the lay beam remains stationary in the rearward position, a terry reed motion comprising a reed, reed arms pivotally mounted on each lay sword and supporting the reed therebetween, link means between each lay sword and respective reed arm for changing the distance between the reed and lay beam to provide a partial or a full beat up.

2. A reed motion for weaving "terry fabric on a shuttleless loom comprising a lay beam, a lay sword, bearing means for supporting one end of the lay sword, a reed arm, means for mounting the reed arm on the lay sword, a reed on the reed arm, means for angularly oscillating the lay sword on the bearing means, a bar extending outwardly from the lay sword, a bracket on the end of the bar, a bracket on the reed arm, a toggle linkage extending between each of said brackets and means for actuating the toggle linkage for changing the displacement of the lay beam relative to the reed.

3. A reed motion for weaving terry fabric on a shuttleless loom comprising a lay beam, a lay sword, bearing means for supporting one end of the lay sword, a reed arm, means for mounting the reed arm on the lay sword, a reed on the reed arm, means for angularly oscillating the lay sword on the bearing means, a bar extending outwardly from the lay sword, a bracket on the end of the bar, a bracket on the reed arm, a toggle linkage extending between each of said brackets, a flange on the bar in position to engage the reed arm when the toggle is collapsed and means for actuating the toggle linkage for changing the displacement of the reed relative to the lay beam.

4. A reed motion for wearing terry fabric on a shuttleless loom comprising a lay beam, a lay sword, bearing means for supporting one end of the lay sword, a reed arm, means for mounting the reed arm on the lay sword,

a reed on the reed arm, means for angularly oscillating the lay sword on the bearing. means, a bar extending outwardly from the lay sword, a bracket on the end of the bar, a bracket on the reed arm, a toggle linkage extending between each of said brackets, a latch on the reed arm, a flange on the bar in position to engage the reed arm, a push rod for actuating the toggle linkage, means connecting the latch with the push rod whereby collapse of the toggle linkage moves the latch into overlapping relation with the flange and means for moving the push rod in timed relation with the motion of the lay sword.

5. A reed motion for weaving terry fabric on a shuttleless loom comprising a lay beam, a lay sword, bearing means for supporting one end of the lay sword, a reed arm, means mounting the reed arm for winging movement relative to the lay sword, means for angularly oscillating the lay sword on the bearing means, a toggle linkage extending betwcen the lay sword and the reed arm, a pushrod attached to the toggle linkage for expanding and collapsing the toggle, a stop bracket on the lay sword and extending outward therefrom in position to engage the reed arm when the toggle is collapsed, a latch on the reed arm for engaging the stop bracket to secure the reed arm against movement relative to the lay sword when the toggle is collapsed and means for sequentially disengaging the latch from the stop bracket and expanding the toggle and for sequentially collapsing the toggle linkage and engaging the latch with the stop bracket.

6. A reed motion for weaving terry fabric on a shuttleless loom comprising a lay beam, a lay sword, bearing means for supporting one end of the lay sword, a reed arm, means mounting the reed arm for swinging movement relative to the lay sword, means for angularly oscillating the lay sword on the bearing means, a toggle linkage extending between the lay sword and the reed arm, a sleeve member attached to the toggle linkage for expanding and collapsing the toggle, a stop bracket on the lay sword and extending outward therefrom in position to engage the reed arm when the toggle is collapsed, a latch on the reed arm for engaging the stop bracket to secure the reed arm against movement relative to the lay sword when the toggle is collapsed, a rod mounted for reciprocating movement in the sleeve member, a collar secured to the rod, means connecting the latch with the collar for moving the latch, and means for reciproa eating the rod in timed relation to the oscillating movement of the lay sword, said collar being spaced from the sleeve member whereby movement of the rod and the collar toward the sleeve sequentially disengages the latch from the stop bracket and expands the toggle.

7. A reed motion for weaving "terry fabric on a shuttleless loom comprising a lay beam, a lay sword, bearing means for supporting one end of the lay sword, a reed arm, means mounting the reed arm for swinging movement relative to the lay sword, means for angularly oscillating the lay sword on the bearing means, a toggle linkage extending between the lay sword and the reed arm, a sleeve member attached to the toggle linkage for expanding and collapsing the toggle, a stop bracket on the lay sword and extending outward therefrom in position to engage the reed arm when the toggle is collapsed, a latch on the reed arm for engaging the stop bracket to secure the reed arm against movement relative to the lay sword when the toggle is collapsed, a rod mounted for reciprocating movement in the sleeve member, a collar secured to the rod, a strut extending between the collar and the latch and attached at one end to the collar, the strut having a slot in the opposite end, a pin extending outward from the latch and through the slot whereby the latch is movable relative to the strut when the latch is engaging the stop bracket, a spring in the sleeve for engaging the end of the rod, and means for reciprocating the rod in timed relation to the oscillating movement of the lay sword.

8. A reed motion for weaving terry fabric on a shuttle- 8, less loom comprising a lay beam, a lay sword, bearing means. for supporting one end of the lay sword, a reed arm, means for mounting the reed arm on the lay sword, a reed on the reed arm, a rotary shaft, a cam on the shaft, a follower on the sword cooperating with the cam for intermittent oscillation of the sword upon rotation of the shaft, means for angularly displacing the reed arm relative to the lay sword between predetermined positions, a driven shaft, a cam on the driven shaft, drive means connecting said rotary shaft and said driven shaft, and lever means having a follower thereon cooperating with the cam, said lever means being connected with the displacing means whereby the reed arm is displaced in timed relation with-the oscillation of the lay sword.

9. A reed motion for weaving terry fabric on a shuttleless loom comprising a lay beam, a lay sword, bearing means for supporting one end of the lay sword, a reed arm, means for mounting the reed arm on the lay sword, a reed on the reed arm, a rotary shaft, a cam on the shaft, a follower on the sword cooperating with the cam for intermittent oscillation of the sword upon rotation of the shaft, a bar extending outwardly from the lay sword, a

bracket on the end of the bar, a bracket on the reed arm, a toggle linkage extending between each of said brackets, a driven shaft, a cam on the driven shaft, drive means connecting said rotary shaft and said driven shaft, and lever means having a follower thereon cooperating with the cam, said lever means being connected with the toggle linkage whereby the toggle linkage is actuated to angularly displace the reed arm relative to the sword in timed relation with the oscillation of the sword.

10. A reed motion for weaving terry fabric on a shuttleless loom comprising a lay beam, a lay sword, bearing means for supporting one end of the lay sword, a reed arm, means for mounting the reed arm on the lay sword, a reed on the reed arm, a rotary shaft, a cam on the shaft, a follower on the sword cooperating with the cam for intermittent oscillation of the sword upon rotation of the shaft, a bar extending outwardly from the lay sword, a bracket on the end of the bar, a bracket on the reed arm, a toggle linkage extending between each of said brackets, a latch on the reed arm, a flange on the bar in position to engage the reed arm, a push rod for actuating the toggle linkage, means connecting the latch with the push rod whereby collapse of the toggle linkage moves the latch into overlapping relation with the flange, a driven shaft, a cam on the driven shaft, drive means connecting said rotary shaft and said driven shaft, and lever means having a follower thereon cooperating with the cam, said cam being formed to swing the lever during a dwell between the intermittent oscillations of the sword, said lever means being connected with the push rod whereby the toggle linkage and the latch are actuated in timed relation with the motion of the lay sword.

11. In combination with a shuttleless loom of the type having means forming a small shed, a pair of reciprocable carriers insertable from opposite sides of said loom toward the center of said shed, one of said pair of carriers being adapted to introduce filling yarn from a stationary package part way into said shed and to transfer said yarn to the other of said pair of insertion of said yarn through the remainder of said shed, a lay beam supported at opposite ends by lay swords, drive means for oscillating the lay beam, means for intermittently oscilla'ting said pair of reciprocable carriers during a portion of the cycle of said lay, a terry reed motion comprising a reed, reed arms pivotally mounted on each lay sword and supporting the reed therebetween, and link means between each lay sword and respective reed arm for changing the distance between the reed and lay beam to provide a partial or full beat up.

12. In combination with a shuttleless loom of the type having means forming a small shed, a pair of reciprocable carriers insertable from opposite sides of said loom toward the center of said shed, one of said pair of carriers to the other of said pair for insertion of said yarn through V the remainder of said shed, a lay beam supported at opposite ends by lay swords, drive means for oscillating the lay beam, means for intermittently oscillating said pair of reciprocable carriers during a portion of the cycle of said lay, a terry reed motion comprising a reed, reed arms pivotally mounted on each lay sword and supporting the reed therebetween, link means between each lay sword 10 and respective reed arm for changing the distance between the reed and lay beam to provide a partial or full 1 0 beat up, and means for locking the reed arm against pivoting movement relative to the lay sword.

References Cited in the file of this patent UNITED STATES PATENTS 1,441,611 Turner Jan. 9, 1923 1,593,851 Ryon July 27, 1926 2,604,123 Budzyna et al. July 22, 1952 2,625,956 Sippel Jan. 20, 1953 FOREIGN PATENTS 851,028 Germany Sept. 29, 1952

Claims

1. IN COMBINATION WITH A SHUTTLELESS LOOM OF THE TYPE HAVING MEANS FOR FORMING A SMALL SHED, A LAY BEAM SUPPORTED AT OPPOSITE ENDS BY LAY SWORDS, A FILLING CARRIER MECHANISM FOR INSERTING FILLING YARNS FROM A STATIONARY YARN PACKAGE AND DRIVE MEANS FOR INTERMITTENTLY OSCILLATING THE LAY BEAM AND FOR OPERATING THE FILLING CARRIER MECHANISM WHILE THE LAY BEAM REMAINS STATIONARY IN THE REARWARD POSITION, A TERRY REED MOTION COMPRISING A REED, REED ARMS PIVOTALLY MOUNTED ON EACH LAY SWORD AND SUPPORTING THE REED THEREBETWEEN, LINK MEANS BETWEEN EACH LAY SWORD AND RESPECTIVE REED ARM FOR CHANGING THE DISTANCE BETWEEN THE REED AND LAY BEAM TO PROVIDE A PARTIAL OR A FUL BEAT UP.