US2570764A

US2570764A - Attachment for multiple shuttle looms for preventing fouling of the filling threads

Info

Publication number: US2570764A
Application number: US123066A
Authority: US
Inventors: Clarence A Cannon
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-10-22
Filing date: 1949-10-22
Publication date: 1951-10-09
Anticipated expiration: 1968-10-09

Description

Oct. 9, 1951' c. CANNON ATTACHMENT FOR TI SHUTTLE LOOMS FOR FOULING o HE FILLING THREADS 3 Sheets-Sheet l PREVENTING Filed Oct. 22, 1949 I ZSnvcntor CLARENCE A. CANNON (Ittomeg Oct. 9, 1951' c, A, NO 2,570,764

ATTACHMENT FOR MULTIPLE SHUTTLE LOOMS FOR PREVENTING FOULING OF THE FILLING THREADS Filed Oct. 22, 1949 3 Sheets-Sheet 2 Zhwcntor CLARENCE A. CANN ON 32 Cmorneg 1951 c. A. CANNON 2,570,764

ATTACHMENT FOR MULTIPLE SHUTTLE L0 OMS FOR PREVENTING FOULING OF THE FILLING THREADS Filed Oct. 22, 1949 3 Sheets-Sheet 3 c 0 O 4 3 4 2 I 2 4 M 7 I I all 3 2 8 8 2 I 2 R 5 7 2 7 2 2 G a Q l m 4 A U o \\3 m H- 25 32 Snventor CLARENCE A. CANNON V (Ittomeg Patented Oct. 9, 1951 UNITED STATES PATENT OFFICE 2,570,764 ATTACHMENT FOR MIJIQTI PLE SHUTTLE LOOMS FOR PREVENTING FOULING OF THE FILLING THREADS Clarence A. Cannon, Johnston, S. 0.

Application October '22, 1949, serial No. 123,036

This invention relates toattachments for multiple shuttle looms for preventing fouling of the filling threads, that is to say, to devices-adapted to be applied to existing looms, or to be incorporated in new looms at the time of their manui aeture, for preventing the entanglement of the filling threads from the shuttles which are out of use, either by the active shuttle or by any of the other filling threads. 7

In the weaving of fabrics in multiple shuttle looms it frequently happens that the threads coming from the shuttles which are not in use become entangled with other threads, or with the'active shuttle,- with the result that undesired filling threads are drawn into the edge portions of the fabric, causing defects therein which resuit in considerable loss to the manufacturer.

Heretofor'e, numerous attempts have beenirn'ade to produce a satisfactoryattaohment for multiple shuttle looms which will prevent the pulling of undesired filling threads into the edge portions of the fabric, but most of these have been "too complicated and expensive, and subject to ire quent breakdowns, and in themselves ofttimes causing trouble more serious than that sought to be eliminated.

The principal object of the present invention is to provide a simple, yet efficient, device for preventing fouling of the filling threads in multiple shuttle looms, thereby eliminating the dragging of such threads into the edge portions of the fabric, with resulting defects in the cloth.

A further object of the present invention is to provide a device of the character aforesaid, which may be readily applied to the common forms of multiple shuttle looms at present in use, and which may also be incorporated in new looms at the time of their manufacture.

A further object of the present invention to provide a device of the character aforesaid, which will be relatively inexpensive yet will be positive and certain in its action.

The nature and characteristic features of the invention will be more readily understood from the following description, taken in connection with the accompanying drawings forming part hereof, in which:

Figure 1 is a transverse sectional view of the lay of a multiple shuttle loom of a common type, also illustrating a portion of the shuttle box structure associated therewith, and showing an attachment embodying the main features of the present invention applied thereto;

' Fig. 2 is a fragmentary plan view illustrating certain portions of the lay and shuttle'boxstrue- Claims. (Cl. 139*116) ture, as shown in Fig. l, with the attachment of the present invention shown applied thereto;

Fig. 3 is a rear "elevation, on a reduced scale,

of the device of the present invention, detached; Figs. 4, 5, 6 and '7 are front elevations of the device of the present invention but with a cover plate of a bracket member broken away, and the parts shown in the various positions resulting from the actuation of the shuttle box motionto selectively the various shuttle boxes to desired positions, "the same also being shown on a reduced scale," and Fig. 8 is a fragmentary sectional detail view, the section 'being taken on the line 8-8 of Fig, 5,, the same being shown on the same scale as Figs. 1 and 2. i

It should, of course, be understood that the description and drawings herein are illustrative merely and that various changes and modifica tions may be made in the structure disclosed without departing ,from the spirit of the inven-- tion, and particularly that the relative dimensions of the parts would be modified for the purpose of adaptation-of the invention to various makes of horns.

Referring to the drawings, as there shown,- 10 is the lay of the loom, and H is the usual reed for beating up the filling into the fell of the cloth. The lay has cut therein a transverse groove or recess l 2 in which certain filling engaging fingers, hereinafter referred to, are at times located so that there will be no interference with the shuttle as 'thes'am'e passes over the top surface of the lay. The shuttle bottstructure I 3 is raised and lowered ltl'l usual manner by means of any preferred mechanism (not shown) for thepu'rpose of selec= ti-vely bringing the several shuttles into action by shifting the shuttle box structure to bring the desired shuttle to operative position.

A bracket member 20, having arm's 2| and 22, by iiieans of which said bracket member seciiiedtothe mouth portion l5 of the shuttle box structure; screws 23 may be employed for fats-'- tening the arms-2| and 2 2fto the'portion l 5 of the shuttle boli stl uettire, or any'other fastening devices may be employed for that purpose. The bi aelit member 20 comprises an elongated plate having its top portion bent outwardly as at 24, and its b ttom portion bent outwardly as at '25.

'Tl-i oiltvvai dly bent portions 24 and '25, at the top and bottom,respectivelymf the bracket mem 1581 20, serve to support a piuiaury of vertical-1y disposed rods 30, there-beingprov ided a number Di Slit-Eh rods 317 which, each instance, Will be one less than the number of shuttle boxes employed in the loom.

Each of the rods 30 has an enlarged head portion 3| at its top end, and each of said rods is also provided with a transverse hole at the bottom for the mounting therein of a cotter pin 32, the arrangement being such that upon the withdrawal of the cotter pin 32 any one or all of the rods 30 may be withdrawn for replacement or repair of the same or of the parts carried thereby.

A cover plate '26 is mounted on the front of the bracket member which serves to protect the rods and the parts mounted thereon. The cover plate 26 is secured to the bracket member by screws 21 passing through cars 28 extending from one edge of the cover plate structure.

For each of the vertical rods 3|] there is provided a finger member for engaging the filling yarn at certain times. The inner end portion of each finger portion 40 is located in the groove 12 of the lay when the shuttle box structure is in its lowermost position, that is, when the shuttle from the uppermost box is in action.

Each of the finger members 40 is carried by a supporting member 4| which is slidably mounted on one of the rods 30. The finger supporting member 4| has a portion 42 in a slot 43 in the bracket member 20.

The intermediate portion of each finger member 46, between its supporting member 4| and the forward portion thereof is preferably provided on its top edge with a toothed arrangement, as at 44, for the purpose of engaging any filling threads which may become looped and ride forward on said finger member 40 when the same is in a position raised above the lay, as will be hereinafter more fully set forth.

Another bracket member is secured to the lay in any preferred manner as, for example, by the utilization of a set screw M which is commonly used near the end of the lay ID for adjusting the lay beam with respect to the casting forming part of the lay sword, there being provided, in addition to the usual jam nut l6, an additional jam nut I! so that the bracket member 50 is fixedly secured with respect to the lay by being clamped between the two jam nuts l6 and H on the set screw l4.

The bracket arm 50 extends upwardly and outwardly and then vertically upward as at 5|. The vertically extending portion 5| to which there is fixedly secured, at each of the two locations, two members 52, each pair of said members, at each location, preferably forming a fork which extends across in front of the bracket member 20, strad dling the vertical rods 30. Between the upper and lower pairs of fork members 52, the members 4| Which support the yarn engaging fingers are at all times located, and these members 52 serve to hold the finger supporting members 4| in their limit positions.

Upon the vertical rods 30 there are mounted a plurality of coil springs 34 which, areso tensioned as, in the absence of the members 52, to cause the finger members 40 to be equally spaced in vertical direction. By reason of said springs 34 being of different lengths, and preferably of the same normal pitch, and gauge, and therefore of different tensions, the tendency of the springs will be to cause the members 4| and the fingers 40 carried thereby to be brought under the control of the members 52 as shown in Figs. 4, 5, 6 and 7 of the drawings, so that in any given elevation of the shuttle box structure the springs 34 will cause the members 4| which support the fillingengag:

4 ing fingers 4|] to bear against the proper members 52, and the same will be raised and lowered with respect to the lay in the proper sequence, as will be hereinafter more fully set forth.

The operation of the device should now be readily understood. When the loom is in the condition as shown in Fig. 1 of the drawings, that is to say, with the uppermost shuttle box in alinement with the top surface of the lay, the several parts of the device of the present invention will be in the positions shown in Fig. 4 of the drawings.

All three of the finger members 40 will then be located in the groove or recess |2 in the top of the lay, being held in such positions by the members 52, and being impelled to such positions by the springs 34 disposed on the rods 30 above the finger supporting members 4|. By reason of there then being but one shuttle box above the plane of the top surface of the lay, there will be little likelihood of fouling of the idle filling threads when the loom is in this condition.

When, however, the shuttle box structure is raised to bring the second box from the top in alinement with the top surface of the lay, then one of the finger supporting members 4| and the finger 40 carried thereby will be raised to the position shown in Fig. 5 of the drawings, and said finger 40 will serve to support the idle thread coming from the shuttle in the top box, and the same will be kept free of any entanglement with the active shuttle or with the filling thread controlled thereby. v

7 When the shuttle box structure is raised still further, to bring the third box in alinement with the top surface of the lay, the parts will be in the respective positions shown in Fig. 6 of the drawings, and another of the finger supporting members 4| will be elevated and the finger 40 carried thereby will serve to support the thread coming from the second box and will keep the same free of any entanglement with the then active shuttle operating out of the third box or with the filling controlled thereby.

When the shuttle box structure is raised to bring the lowermost box in alinement with the top surface of the lay, the parts will, then be in the respective positions shown in Fig. 7 of the drawings, and all three of the finger supporting members will be raised and held against the uppermost of the members 52, and the filling thread coming from the shuttle in the third box will then be held above the path of travel of the shuttle operating from the lowermost box, and will thereby prevent any entanglement therewith as well as with the filling thread controlledthereby.

It will be noted that in each instance: the finger supporting members 4| which are slidably mounted on the rods 30 are held against the proper member 52 by reason of the tension of the respective springs which are mounted on the rods 30 above and below .thefinger supporting members.

It will also be noted that in each instance, after the lay has moved forward to beat up the filling thread into the fell of the cloth, and as the same is retracted, the idle threads will be carried forwardly onto the notched portions 44 of their respective finger members 40, and thereby any whipping of the loops which are thus formed in those portions of the filling threads will be effectively eliminated.

I claim: a

1. An attachment for a multiple shuttle loom having the usual lay and a shuttleboxstrucw ture provided with a plurality of shuttle boxes adapted to be shifted to bring the shuttles selectively into action, a plurality of finger supporting members slidably mounted with respect to the shuttle box structure, a-filling thread engaging finger carried by each of said finger supporting members, a pair .of springs for each of said finger supporting members oppositely disposed toward said finger supporting members and adapted to impel the same to their respective operative positions, and means adapted to locate the finger supporting members in their limit positions against the tension of the springs.

2. An attachment for a multiple shuttle 100m having the usual lay and a shuttle box structure provided with a plurality of shuttle boxes adapted to be shifted to bring the shuttles selectively into action, a plurality of rods sup ported by the shuttle box structure, a finger supporting member slidably mounted on each of said rods, a filling thread engaging finger carried by each of said finger supporting members, springs mounted on said rods and oppositely disposed toward the finger supporting members and adapted to impel the same to their respective operative positions, and means adapted to be engaged by the finger supporting members and to locate the same in their limit positions against the tension of the springs.

3. An attachment for a multiple shuttle loom having the usual lay and a shuttle box structure provided with a plurality of shuttle boxes adapted to be shifted to bring the shuttles selectively into action, a bracket secured to the shuttle box structure and adapted to be shifted in unison therewith, a plurality of vertical rods carried by said bracket, a finger supporting memher slidably mounted on each of said rods, a filling thread engaging finger carried by each of said finger supporting members, springs mounted on said rods and oppositely disposed toward the finger supporting members and adapted to impel the same to their respective operative positions, and means adapted to locate the finger supporting members in their limit positions against the tension of the springs.

4. An attachment for a multiple shuttle loom having the usual lay and a shuttle box structure provided with a plurality of shuttle boxes adapted to be shifted to bring the shuttles selectively into action, a bracket secured to the shuttle box structure and adapted to be shifted in unison therewith,,a plurality of rods carried by said bracket, a finger supporting member slidably mounted on each of said rods, a filling thread engaging finger carried by each of said finger supporting members, springs mounted on said rods and oppositely disposed toward the finger supporting members and adapted to impel the same to their respective operative positions, and means adapted to be engaged by the finger supporting members and to locate the same in their limit positions against the tension of the springs.

5. An attachment for a multiple shuttle loom having the usual lay and a shuttle box structure provided with a plurality of shuttle boxes adapted to be shifted to bring the shuttles selectively into action, a bracket secured to the shuttle box structure and adapted to be shifted in unison therewith, a plurality of rods carried by said bracket, a finger supporting member slidably mounted on each of said rods, a filling thread engaging finger carried by each of said finger supporting members, springs mounted on said rods andoppositely .disposedtoward the finger supporting members and adapted to impel the same to their respective operative positions, and spaced members supported from the lay and adapted to be engaged by the finger supporting members to locate the same in their limit positions against the tension of the .springs.

6. An attachment for a multiple shuttle loom having the usual lay and a shuttle box structure provided with a plurality of shuttle. boxes adapted to be shifted to bring the shuttles selectively into action, a bracket secured to the shuttle box structure and adapted to be shifted in unison therewith, a plurality of rods carried by said bracket, a finger supporting member slidably mounted on each of said rods, a filling thread engaging finger carried by each of said finger supporting members, springs mounted on said rods and oppositely disposed toward the finger supporting members and adapted to impel the same to their respective operative positions, a bracket member fixedly secured to the lay, spaced members carried by said bracket adapted to be engaged by the finger supporting members and to locate the same in their limit positions against the tension of the springs.

7. An attachment for a multiple shuttle loom having the usual lay and a shuttle box structure provided with a plurality of shuttle boxes adapted to be raised and lowered to bring the shuttles selectively into action, a bracket secured to the shuttle box structure and adapted to be raised and lowered in unison therewith, a plurality of vertical rods carried by said bracket, a finger supporting member slidably mounted on each of said rods, a filling thread engaging finger carried by each of said finger supporting members, springs mounted on said vertical rods above and below the finger supporting members and adapted to impel the same to their respective operative positions, and means adapted to locate the finger supporting members in their limit operations against the tension of the springs.

8. An attachment for a multiple shuttle loom having the usual lay and a shuttle box structure provided with a plurality of shuttle boxes adapted to be raised and lowered to bring the shuttles selectively into action, a bracket secured to the shuttle box structure and adapted to be raised and lowered in unison therewith, a plurality of vertical rods carried by said bracket, a finger supporting member slidably mounted on each of said rods, a filling thread engaging finger carried by each of said finger supporting members,

springs mounted on said vertical rods above and below the finger supporting members and adapted to impel the same to their respective operative positions, and means carried by the lay adapted to be engaged by the finger supporting members to locate the same in their limit positions against the tension of the springs.

9. An attachment for a multiple shuttle loom having the usual lay and a shuttle box structure provided with a plurality of shuttle boxes adapted to be raised and lowered to bring the shuttles selectively into action, a bracket secured to the shuttle box structure and adapted to be raised and lowered in unison therewith, a plurality of vertical rods carried by said bracket, a finger supporting member slidably mounted on each,- of said rods, a filling thread engaging finger carried by each of said finger supporting members, springs mounted on said vertical rods above and below the finger supporting members and adapted to impel the same to their respective operative positions, and spaced members supported from the lay and adapted to be engaged by the finger supporting members to 10- cate the same in their limit positions against the tension of the springs.

V} 10. An attachment for a multiple shuttle loom having the usual lay and a shuttle box structure provided with a plurality of shuttle boxes adapted to be raised and lowered to bring the shuttles selectively 7 into action, a bracket secured to the shuttle box structure and adapted to be raised and lowered in unison therewith, a plurality of vertical rods carried by said bracket, afinger supporting member slidably mounted on each of said rods, a filling thread engaging finger carried by each of said finger supporting members, springs mounted on said vertical rods above and below the finger supporting members and 8 adapted to impel the same to their respective operative positions, a bracket member fixedly secured to the lay, spaced members carried by said bracket adapted to be engaged by the finger supporting members and to locate the same in their limit positions against the tension of the springs.

CLARENCE A. CANNON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 397,074 Fitton Jan. 29, 1889 FOREIGN PATENTS Number Country Date 185,138 Germany May 16, 1907