US1328585A

US1328585A - Automatic loom

Info

Publication number: US1328585A
Application number: US191405A
Authority: US
Inventors: Northrop Jonas
Original assignee: HOPEDALE Manufacturing CO
Current assignee: HOPEDALE MANUFACTURING Co
Priority date: 1917-09-14
Filing date: 1917-09-14
Publication date: 1920-01-20
Anticipated expiration: 1937-01-20

Description

J. NORTHROP.

AUTOMATIC LOOM.

APPLICATION man SEPT. 14. 1912.

1,328,585, Patented Jan. 20, 1920.

0 6 YT] LL 24 53 i 25 I w y zii j UNITED STATES PATENT ornron.

JOZQ'AS' NORTHROP, HOPEDALE, MASSACHUSETTS, ASSIGNOR T HOPEDALE MANU- FACTURING COMPANY, OF MILFORD, MASSACHUSETTS, A CORPORATION OF MASSA- AUTOMATIC LOOM.

Specification of Letters Patent,

Patented Jan. 20, 1920.

' To aZZ whom it may concern:

Be. it known that I, JONAS Non'rnnor, a citizen ofthe United States, residing at Hopedale, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Automatic Looms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as Wlll enable others skilled in the art to which it appertains to make and use the same.

-The present invention relates to an mprovement in automatic weft replenishing looms,

In that type of automaticweft-replenishing looms in which the filling is replenished, on the breakage or the predetermined exhaustion thereof, by the insertion of a filled bobbin or filling carrier in the active shuttle, the outer filling ends of the bobbins in the hopper are allattached to the hopper stud, as it is known, so that the new filling maybe held and therefore be properly laid in the shed on the first pick of the shuttle after the replenishing operation. When this strand of filling or weft has been beaten up against the fell by the reed and caught by the warps on the next shedding operation, there remains extending from the selvage to the hopper stud a part of the new filling, andthis is known as the incoming filling end. Automatic looms are usually provided with a thread cutter located adjacent the selvage, for the purpose of severing the incoming filling end near the selvage so that it may not be caught up and woven into the shed, and thereby cause a double pick, which is a blemish in the cloth. It sometimes happens, however, that before the thread cutter, located adjacent the cloth selvage,'especially where this cutter is the usual tempie thread cutter,can operate to sever the incoming filling end that the latter is broken and is whipped into the shed. This breaking of the incoming filling end is commonly caused by the chafing of the filling by the top edge of the front wall of the shuttle box. It has been proposed heretofore to provide automatic looms with various devices to prevent this chafing and breaking of the incoming filling end by the front wall of the shuttle box. The object of the present invention is to provide an automatic loom with an improved and simplified device for performing the same function, namely. to hold the incoming filling end in such position that it will not be chafed and broken by the shuttle box. To the accoIIi plishment of this object, the invention consists in the automatic loom provided with the improved incoming filling end support described in the following specification and particularly pointed out in the appended claims.

The preferred form in which it is contemplated embodying the invention is illus trated in the, accompanying drawings, in which Figure 1 is a side elevation, partly in section, of the weft replenishing end of a loom showing the application of the im proved incoming filling end support thereto; and Fig. 2 is a plan of the parts shown in Fig. 1, and, in addition, a plan of the loom temple.

The improved incoming filling end support of the present invention may be applied to any usual or preferred form of automatic weft replenishing loom in whichthe filling 1s replenished by the insertion of a filled bobbin or filling carrier in the active shuttle. The loom illustrated in the drawings comprises a weft replenishing mechanism, ofwhich the hopper is indicated at 5. The

hopper 5 is provided with a vertically disvices of the loom comprise a lay 12 mounted for swinging movements toward and hem the breast beam 9. The lay 12 carries the reed dents 13 which engage the filling or weft threads andbeat them up against the fell of the cloth. On the end of the lay 12 which passes back and forth under the Weft replenishing mechanism, there is constructed the replenishing shuttle box, of which the back box plate is indicated at 14 and the top plate is indicated at 15. The frontwall of the shuttle box is shown at 16, and it is the top edge of this front wall of the shuttle box which usuall frays the incoming filling end so that it ofi en breaks and is whipped into the shed before the thread cutter vlocated adjacent the salvage operates to sever in the drawings is of the usual temple thread cutter type and is indicated at 18 in its usual place on the 100111 temple 19. The parts described above and their mode of operation are familiar to those skilled in the The improved incoming filling end support of. the present invention comprises a resilient rod 20 adjustably secured. at its lorwardend to a bracket 22 fastened to the upright 7 by means of the lower bolt 10.

' shown in full lines in the incoming filling 'gaged by the shuttle box,

- of the incoming filling end 26 is The rear end of the resilient incoming filling end support rests on the top front edge 2i: of the front of the shuttle box wall, as shown indotted lines in Fig. 1, when the lay is at its rear center. When the parts are in these positions, rests'in a notch 25 cut in the top of the front wall of the shuttle box. This is for the purpose of preventing the filling from catching on the rear end of the rod 20 as the filling passes out of the replenishing shuttle box on the first pick of the shuttle after the relenishing operation. Now the construction of the front wall 16 of the shuttle box and the-top plate thereof is such that when the lay beats forward, and consequently the front wall of the shuttle box raises the resilient incoming filling end support 20, the latter is received over the top plate 15, as Fig. 1. It is thus seen that as the lay beats backwardly and forwardly, the resilient incoming filling end support rises and falls, but that its rear end is always supported either on the top plate p); on the top of the front wall of the shuttle The operation of the improved incoming filling end support in holding the incoming filling end in such a position that it will not be chafed and broken by the front wall of the shuttle box, will be clearly understood from a consideration of the two figures of the drawings. It is assumed that there has been an operation of the weft replenishing mechanism and; that the shuttle has completed its first pick through the shed and that the new filling has been beaten up against the fell by the reed. The incoming filling end will therefore be substantially in the position shown by the line 26 of Fig. 2, the filling end having passed out of the shuttle box when the lay was on its rear center. From this consideration of the drawings it will. be seen that inasmuch as the outer'end held by the usual hopper stud and the inner end thereof is held fast at the fell, and since the rear end of the resilient thread support 20 always rests on the shuttlb box, that is to say, either on top of the front wall or on the top plate,

end can never be enand therefore cannot be chafed thereby and broken before it is cut by the temple thread cutter.

the rear end of the resilient rod 20 assesses Having thus described the invention,

is claimed as new is z- 1. A loom having, in combination, a'weft replenishing mechanism, a lay having shuttle box at its replenishing end including the shuttle box during the backward and forward movements of the lay. Y

2. A loom having, in combination, a weft replenishing mechanism a lay, a shuttle boa thereon its replenishing end including a top plate and a front walhand an inceming filling end support fined at its forward end, the rear end of the support being adapted to rest on the front wall of the shuttle box when the lay is at its rear center and "to rest on the tOp plate when the lay is at its forward center.

3. A. loom having, in combination, a weft replenishing mechanism, a lay, replenishing shuttle box thereon including a top plate and a front wall, and resilient means fixed at one end and free to be moved at the other end for supporting an incomingfilling end above the shuttle box during the backward. and forward movements of the lay.

4. A. loom having, in combination, a weft replenishing mechanism, a lay including a shuttle box at its replenishing end, a thread cutter located adjacent the selvage, and a resilient incoming filling end support fixed at its forward; end and extending rearwardly to rest on the replenishing shuttle box to support the incoming nlling end until Hit? the latter has been severed near the selvage' f by the thread cutter.

5. A loom having, in combination, a weft replenishing mechanism, a lay, a replenish ing shuttle box thereon including a top plate and a front wall, a thread cutter located adjacent the selvage, and a resilient incoming filling end support fixed at its forward end and resting at its rearward end on the front wall of the shuttle box when the lay'i's at its rear center and on the top plate of the shuttle box when the lay is on its forward center, to support the incoming filling end and hold it from contact by the shuttle box until it has been severed by the thread cutter.

6. A loom having, in combination, a weft replenishing mechanism, a lay including a shuttle box at its replenishing end, and an incoming filling end support secured at its forward end to a fixed part of the loom, the rear end of the support resting on the shuttle box during the backward and forward movements of the lay.

7. A loom having, in combination, a weftreplenishing mechanism, a lay having a shuttle box at its replenishing end includin a front wall, and an incoming filling and ma es 13 support secured at its forward end to a fixed incoming filling and support adjustably separt ef the 100m, the rear free end 0f the cured at its forward. end to a fixed part of support engaging the front wall of the shutjalie l00n1,'tl1e rear free end of the support 10 tle box during the movements of the lay. Easting lightly on the shuttle box during 8. A 100m having, in combinatien, a wait the backward and forward movements of replenishing mechanism, a lay having a the lay. shuttle bex at its replenishing end, and an JONAS NOETZHROP.