US1634413A - Fabric-weaving machine - Google Patents

Description

1 July 927 J. E. FEFEL FABRIC WEAV'ING MACHINE 3 Shoots-Sheet 1 77 Filed May 21, 1926 INVENTOR. fa/2 n Ella? 6 BY ATTORNEYS.

July 5, 1927.

J. E. FEFEL FABRIC WEAVING MACHINE Filed May 21, 1926 IIllh 55- 9 10.3 ll

3 Sheets-Sheet 2 July 5 1927. 1,634,413 J. E. FEFEL I FABRIC WEAVING MACHINE Filed May 21, 192s s Sheets-Sheet 3 INVENTOR. kfoizzz EFef'e A TTORNEYS.

Patented July 5,1927.

UNITED STATES JOHN E. FEFEL, or nnxnenronr, oonnnc'rrcn 1,634,413- PATENT OFFICE.

T, ASSIGNOR 0F ONE-HALF TO FRANK 3'.

Hour, or NEW YORK, n. Y.

rannrc wnavme MACHINE.

My invention relates to improvements in fabric weavingmachines and has for its object to provide a machine of this type, preferably adapted for weaving a narrow ribbon-like fabric-as tape, braid, and the like.

A specific object of the invention is to provide a fabric-weaving machine adapted for weaving fabric like that disclosed and claimedin my co-pending application, Se-

rial No. 97,230, filed March 25, 1926, and in which a reinforced selvage is provided at each longitudinal edge.

It is the purpose of my present invention to provide a novel means for handling the 7 weft or filling threads in a fabric without the use of a bobbin, shuttle, or the like, and to employ in their stead needles and loopers of novel construction and arrangement which are associated to cooperate in a way to successively lay. the weft threads in the warp, and to loop the same in a manner to' form a selvage of the same structure and strength at each edge of the fabric.

I have further shown means and mechanism for operating these weft-handling needles .and loopers, but which obviously may be varied somewhat in their arrangement or detail of construction and are, therefore, subject to such changes as may be necessary, and permissible within thescope and breadth 'of the claims to follow.

By the use of needles and loopers as applied and operated in my invention I am able to take the filling threads direct from the sourceas, for instance, a spoolthereby eliminating the labor involved in windthis preliminarywork.

embodiment of the invention.

ing this vast amountof material upon bobbins, as is customary with the old style of.

weaving machines, thereby saving a great amount of floor space as is now required for With the above and other objects in view,

- an embodlment of the invention is shown 1n the accompanying three sheets of drawings,

and this embodiment vwill be hereinafter from the Application filed May 21,

1926. Serial no. 110,619.

Fig. 3 is an enlarged sectional view through the rack and pinion mechanism, taken on line 3 of Fig. 2.,

Fig. 4 shows a plan view of a sample of fabric woven by my improved machine.

Figs. 5, 6, 7, and 8 are front and plan diagrammatic views respectively, showing steps in the fabric weaving operations, of the. needles and cooperating loopers carried in "thei frame members of the weaving machine;

Figs. 9 and 10 are plan v'iews showing further steps.

Similar reference characters indicate corresponding parts throughout the several figures of the drawings. 1

Referring, in detail, to the characters of reference marked upon the drawings, the machine includes uprights 12 and 13 which may be mounted upon a base 14 and tied to-.

gether at their upper portions by means of a horlzontally-disposed frontplate member 15 which serves to support and carry differ- .ent parts of the machine, as will later be more fully explained.

The lmain drive shaft 16 is mounted in bearings 17-17 of the uprights and a third bearing 18 which, like the uprights, is also supported upon the before mentioned-base 14. This shaft .is provided with driving means, as, for instance, a pulley 19, and also 'has mounted upon it, intermediate of the bearings 17 and 18, cams 20 and 21, again to be referredto. An eccentric 22 .is mounted upon this shaft intermediate of the bear ings 1717 as are also cams 23 and 24, which will later be more fully described. On the end of the shaft is mounted a bevel pinion 25 thatmeshes with and drives a similar bevel pinion 26 secured on an upwardlyextending diagonally-disposed shaft 27 that is journaled in bearings 28-28 secured to the upright 12. A third pinion 29 is mountedupon the upper end of the shaft 27 and .meshes with and drives a fourth pinion 30 secured to a transverse shaft .31 journaled in the upper portion of the uprights 12 and 13.

A third transverse shaft 32 also has its end portions journaled in'bearings of the uprights 12 and 13 and serves to carry a drum 33 upon which the fabric is wound after being woven. A ratchet 34 is secured to the drum and" is operated by a pawl 35 carried upon a rocker-arm 36 journaled upon the shaft 32. One end of a reciproca- I ble connecting rod 37 is ivotally connected to the outer end of this rocker-arm, the other end being attached to a band 38 which encircles and is carried by the eccentric 22 mentioned above.

y drum may this means it will be seen that the be slowly rotated, step by step,

through the rotation of the shaft 16, its ec- 'centric 22 and the awl and ratchet mechanism connected wit the drum. In practice these operations are suitably timed so that the fabric is wound upon the drum as it is woven by the action of the weaving mechanism.

' thus woven around the weft or filling threads in the usual manner. These warp threads which I will indicate as a r-a) may be taken rom a roll 40 mounted upon a standard 41, said roll adapted to be rotated as the warp threads are drawn therefrom, against the resistance of a weight 42 attached to a stra 43 which encircles a reduced part of the rol 44 represents a reed, such as is commonly employed in weaving machines, to pack the 'worked into the war or filling thread-s; and which, in this instance, is carried in the upper ends of vertically-disposed rocker-arms 45-45 hinged to'a floor bracket 46, and each carrying a roll 47 for engagement with the cams 23 and 24 mounted upon the before mentioned shaft 16. From this construction, it will be seen that the operation of the cams through their engagement with the rolls of the rocker-arms 45 will cause the latter and their reed 44 to .be operated forward and backward to and from the woven fabric with each shifting of the harness, and laying of the filling threads 1n a way to pack said threads against the war threads in the usual manner.

T e particular t pe of fabric which the machine is adapte to produce is shown in Fig. 4, and com rises the warp threads wa and two .weft t reads b and c successively from opposite sides, the laying of each t read being in double strands-that is, each thread is carried back on itself within a single shed of the warp. The two weftthreads are successively lald and looped with each other at opposite edges in symmetrical arrangement at each side, so that reinforced selvages of uniform structure, strength, and resistance to -pulling are produced. I

For this pur ose, there are provided a pair of transverse y-reciprocating horizontallydisposed needless 48 and 49, and a pair of vertically-reciprocating rotary looper shafts 50 and 51 carrying looper elements, herein-.

1,as4,41a

after more fully referred to. The needles are disposed in horizontally-aligned relation with each other andare secured in diagonally projecting arm- supports 52 and 53 respectlvely mounted on reciprocating slide rods 54 and 55 slidably supported in suitable bearings or guides 56 and 57 secured to' the uprights 12 and 13. At one end, the rods are provided with eared sleeves 58 and 59 pivotally connected by links 60 and 61 to the upper ends of rocker- arms 62 and 63 hinged at their lower ends to floor brackets 64 and 65 and respectively carryin rolls 66 and 67 which engage the grooves o cams 68 and 69 4 carried upon the aft 16.

The weft threads are carried from spools 70 and 71, mounted upon suitable supports 72 and 73 through guide loops 74 provided on the respective arm-sup the needle eyes provide ends of the needles.

The vertically-reciprocating looper shafts 50 and 51 are mounted for vertical sliding and rotary movements in the vertical passages of a pair of bracket supports 75 and at the forward 76 secured upon the plate member 15; and

at their upper ends are provided with annularly channeled collars 77 and 78 in which rings 79 and 80 are engaged and have trunnion connection with the yoke ends 81 and 82 of levers 83 and 84 pivotally, supported upon brackets 85 secured. to the inner side of the plate member 15. Rolls 86 and 87 are provided at the inner ends of the levers, which engage the grooves of cams 88 and 89 provided upon the shaft 31, and which are esigned to impart alternate up-and-down' movement to the loopers. Within pockets 90 and 91, provided in the respective brackets 75 and 76, there are provided gears 92 orts 52 and 53, to

and 93 keyed upon the looper shafts to per mit longitudinal movement of the latter, and engaged byvhorizontally-disposed rack members 94 and 95 provided at their res ctive inner ends with yoke portions 96 an 97 embracing the shaft 31, and carrying r'olls 98 and 99 enga ing the grooves of cams 100 and 101 provided upon the shaft 31, and adapted to reciprocate the racks and, through the gears 92 and 93, to rotate the looper shafts to and fro through a quarter turn. 7

At the lower ends of the looper shafts there are rovided forked flattened threaden'g'aging ooper' portions 102 and 103, one leg of each than the other, and respectively provi ed upon one side withhooks 104 and 105 for engaging and drawing the thread downwardly Into loop form.

The operation ofthe machine (Figs. 5 to 10) is as follows:

The weft thread 5 carried by the needle 48 is laid in a shed of the warp from the left and is carried beyond the right-hand edge of these portions being lon er .where the looper 103, moving downwardly,

is engaged in flatwise relation between the needle andthe strand of weft at one side, the hook 105 engaging this strand and carrying it downwardly. The needle 48 then starts its return movement, leaving the thread looped about .the looper; and as said needle becomes free of the looper, the latter is rotated a quarter turn, as shown in Figs. 7

and 8, forming the loop held thereon so that its opening is in alignment. with the needle 49. The needle 49 thereupon moves to the left into the successive shed of the Warp passing through the space between the legs a structure is provided which will withstand- .thread.

of the looper 103 and through the loop car ried thereon, whereupon the looper shaft 51 is moved upwardly, shedding its loop which now interwoven with the other weft projected position (Fig. 9) the looper 102 moves downwardly between the needle and thread, the, thread being drawn downwardly by the hook 104 to form a loop; and thereupon,'the needle is retracted'and the looper rotated a quarter turn (as shown in Fig.

10) to present the opening of the loop to the needle 48 which is then projected through it. With each operation of the needles the drum 33 is rotated ,to feed the warp andwind up the woven fabric; and the harness 39 and reed 44 are operated in the usual mannor to alternately raise and depress the Warp and compact the. weft.

A woven fabric is thus produced in which the weft is formed of two threads fed from opposite sides, and each supplied from a single source of supply, so that the machine may be continuously operated withlessattention than is necessary with the usual type of loom, and without the complication and floor .space incident to the shuttles or bobbins heretofore employed to feed the weft! Knitted selvag'es are produced at eachedge by interweaving and 'E-loo ing the weft threads; and a tape or brai of symmetrical pulling strains and wear equally at each side.

I have illustrated and described a preferred and satisfactory embodiment of the invention, but it will'be obvious that changes may be made therein, within the spirit and scope thereof, as defined in the appended claims.

Having thus described my invention, what i I claim and desire to secure by Letters Patent is: I I

1. In afabric weaving machine, war feedlngmeans. weft feeding means inclu ing a weft carrying element adapted to be projected between .sheds of the warp, and

looper means adapted to produce loops'in a thread through which the weft thread carried by said element is passed.

2. In a fabric weaving machine, warp through which the respective weft As the needle 49 reaches its fully.

feeding means, weft feeding means including 1 weft carrying elements at each side of the warp adapted to be projected between sheds of the warp from opposite sides, and looper means adapted to produce loops in a thread threads are passed. v

3. In a fabric weaving machine, warp feeding means, weft feeding means including weft carrying elements at eachside of, the warp adapted to be projected between sheds of the Warp from opposite sides, and looper means adapted to produce a loop in the pro jected portionofqeach weft thread through which the other weft thread is passed.

' 4. In a fabric weaving imachine, warp feeding means, weft feedingmeans including weft carrying elements at each side of .the warp adapted to be projected between sheds of the warp from opposite sides, and looper means adapted to engage and form a loop in the projected portion of each weft thread, the weft carrying means of the other weft thread adapted to be projected through said loop.

5. In a fabric weaving machine, warp feeding means, weft feeding means including weft carrying elements at each side of the warp adapted to be respectivelyprojected between successive sheds of the warp from opposite sides, and looper means adapted to engage and form a 100 in the projected portion of each weft'thread, the

weft carrying means of the other weft thread adapted to be projected through said .loop.

6. In a fabric Weaving machine, warp feeding means, weft feeding meansincluding a weft carrying element adapted to be projected betweensheds of the warp and retracted to lay double strands of weft thread having a bight .at one edge, and looper means including a'reciprocating loop element having a forked end adapted to be engaged and disengaged with said weft to produce loops in a thread through which said weft is passed, adapted to engage within said bight whereby another thread is woven in looped relation therewith.

7; Inafabric weaving machine, warp feeding means, weft feeding means including weft carrying elements adapted to be profor reciprocating said needle through the shed of the warp, and looper means adapted to produce loops in a thread through which the weft thread carried by said needle is assed.

10. In a fabric weaving machine, warp feeding means, weft feeding means including a air of reciprocating needles, one at each -si e of the warp, thread supply means for each of said needles from which a weft thread is adapted'to be continuously supplied'to said respective needles, means for alternately reciprocating said needles through the sheds of'the warp, whereby the weft threads are alternately laid from 0pposite sides, and looper means adapted to engage the weft threads upon projection between the warp sheds to'form a loop in the projected portion of each weft thread through which the other w'eft thread is adapted to be passed. V

11. In a fabric weaving machine, warp feeding means, weft feeding means including a weft carrying element adapted .to be pro jected between sheds of the warp, and looper means including a vertically reciprocatin looper element adapted to be engaged an disengaged with said weft to produce loops in a thread through which said weft is passed.

12. In a fabric weaving machine, warp feeding means, weft feeding means including a weft carrying element a apted to be projected between sheds of the warp, and looper means including a vertically reclprocatlng looper element'adapted to be en aged and disengaged with said weft to pro uce loops in the projected portions thereof.

13. In a fabric weaving machine, warp feeding means, weft feeding means'including thread supply means of t e warp from'opposite sides, and looper means including a pair of vertically reciprocatin adapte to be alternately reciprocated into and out of engagement with the weft to produce a loop in the projected portionof each weft thread and rotated to present said ich the other weft thread isand rotatable looper elements.

ements adapted to be a terelements at each side of the loop for the passage therethrough of the other weft thread.

15. In a fabric weaving -machine, warp feeding means, weft feeding means including weft carrying elements at each side of the warp adapted tobe projected between sheds of the warp from opposite sides, and looper means including a pair of vertically reciprocating and rotatable looper elements have mg a weftreceiving opemng-therethrough,

adapted to be alternately reciprocated into' and out of engagement with the weft to produce a loopin the projected portion of each weft thread and rotated to present said opening and the loop for the passage therethrou h of the other weft thread. A

16. n a fabric weaving machine, warp feeding means, weft feeding means including weft carryin elements at each side'of the war adapte to be projectedbetween sheds of t e warp from oppositesides, and looper means including a pair of vertically reciprocating looper elements, each having a weft engaging hook, adapted to be alternately reciprocated into and out of enga ement with the weft to'produce a loop in the projected portion of .each weft thread through which the other weft thread is passed.

Si ed at Bridgeport in the county of Fair e ld and State of Connecticut this 17th day of May, A. D1926.

JOHN E. FEFEL.

Images