USRE4930E - Improvement in circular looms - Google Patents

Description

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Improvement'ihCircular Hat Weaving Looms.

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. J. V. D. REED. I rn p r ov e m e nt i n .C i r c u I a r H a t W eav i n gY Lo o m s No. 4,930. Reissued 1une'4.1872.-

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` LV. D,A REED, l 3ySheetsv--Sheet Improvement .i'n Circular Hai-Weaving Lnoms.

Ressued June 4,1872.

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UNITED STATES JOHN VAN DUssEN REED, or vNEw YORK, N. Y.

IMPROVEMENT IN CIRCULAR LOCMS.

Specification formingpart of Letters Patent No. 124,288, dated March 5, 187:2; reissue No. 4,930, dated June 4,

Specification describing anew and useful Improvement in Hat-Looms, invented by JOI-IN VAN DUssEN REED, ot" the city, county, and State of New York.

r[he invention consists in a bobbin placed on each warp-carrier, with the warp yarns or strands wound thereon in the usual manner, and all the warp-strands attached at one end to a central holder instead ot' passing through it to the opposite warp-carrier, using suitable let-out mechanism on each carrier, whereby,

as each hat is removed, the warps drawn out from the spools bythe removal of the finished hat may be gathered and connected to the said holder, and the weaving may be proceeded with as before, making several hats in succession without having to renew the warps. The invention also consists in the combination, with each warp-carrier which has a large flat spool carrying a considerable length ot' yarn and with a variable shuttle and filling, of an improved let-out mechanism. lhe spool (above mentioned) carrying the warpyarn is itted to rotate freely in guides on the warp-carrier, and so that it can be readily removed and replaced when exhausted. The yarn is led from the spool to the let-out mechanism, and through a spring toa hole or guide at the front of the carrier, and thence to the center ofthe loom, where all the warp strands are connected to the cord, by which the said warp-strands are drawn down taut The letout mechanism consists of a double-actin g springpawl gearing with the teeth of a ratchet-wheel, around which the warp-thread is carr'ierhso as to be held rmly thereby and let out in a' regul ar manner by the rotation of the wheel, which moves to the extent of one tooth only at each oscilla-tion of the double-acting pawllever, which is actuated by a lifting-roller mounted on an arm carried on the shuttle-carriage. The ratchet-wheel is carried on a pivot fixed to a sliding piece working in'a slot in the warp-carrier, and moved by a lever also pivoted to-the carrier, by which the letout mechanism' may bethrown out of gear when it is necessary to let out a considerable length of warp at once, as for commencing another hat, when all the Warpstrands have to be gathered into the center, as mentioned below.

This lever may be operated directly by hand or indirectly by a device mounted on an arm Xed to the shuttle-carriage, and working in a somewhat similar manner to the liftingroller77 above referred to. After a hat has been woven the let-out mechanism is thrown out of gear and the woven hat is drawn down through the cup of the loom, which is bottomless, by which action the warp-strands are drawn out or unwound from -their spools. They are then gathered together in the center of the loom and held by a suitable device just above the hat already woven, and, 'the let-out mechanism having been again put in gear, the loom is ready to start again to weave another hat, and so .on continuously until the spools in the warp-carriers are exhausted.

The cord heretofore used in the circular-hat machines to draw down the warp is attached to the above-mentioned device, which binds the warp-strands together at the center of the loom to draw down the hat. y These warpstrands were heretofore held by a `cord at the center of the loom conlining them together to aid in forming a shed at the beginning of the operation and to be used in removing the finished hat. Said strands were passed directly through an eye in the aforesaid holder; and

heretofore the warps, as far as I am aware, have been used in short lengths.

Figure l is a side elevation of the warp-carricr with the parts in combination. Fig. 2 1s a plan or edge view of the same; and Fig. 3 side elevation, showing a modified arrangement of devices for connecting and d1scon nectin g the ratchet-Wheel with the let-ofl lever. Figs. 4 and 5 are details of the said apparatus, and Fig. 6 is a sectional elevation ot' one-half of a circular hat-knitting loom, for which my improvement is designed. I

The same letters of reference indicate the same parts in all the gures Wherever they occur. I

Referring first to Fig. 6, which represents so much of the 'machine for which the improvement is intended as is necessary to illustrate its application, A is the bed-plate of the machine, B, standards for supporting the upper frame and the stationary ring-plate C. E is the stationary ring for supporting the lower stationary mechanism, and is fitted to the bed Y form of a cylinder,

' forming center of the loom, in the as a guide or base for another cylinder, F, to revolve around it. This ring supports a ring, F2, which revolves and carries the shuttle-carriage, &c., while the stationary ring E supports the stationary ring E2, on which the lower plates or guides'a1 for the warp-carriers are mounted, while the upper plates a2 are supported on the ring C. The said warp-carriers are worked back and. forth fromvone -set to the other ot' these platesfor the sheds by the grooves formed by `the annular bends or rings D2 forming the principal part of the shuttle-carriage, which is` carried by the ring F2, said carriers having a projection, n', working in the said grooves. e, d, ya, and kt constitute the Shuttlecarrier, and b is the shuttle proper. G is the bracket plate A, near the attached to the annular rings for supporting and carrying the shuttle-carrier. J represents the wheel for operatin g the let-off levers g. a, Fig. 1, is the warp-carrier, and b is a spool of large dimensions held in guides. c fixed on the carrier af. These guides are made with flanges, which are received between the two disks of which the spool b is composed, as shown in Fig. 2. rEhe spool is simply slipped between the guides, and rests on a stop or small friction-roller, d. l is the ratchet-wheel of the letout mechanism. to a slide, f, grooved and fitted in a slot in the i carrier, and the rotation of the wheel is con trolled by a double-acting' spring-pawl, g, pivoted at h to the carrier, and one or other tooth of vvhichis always in gear with wheel e. i is a yoke in which the tail end of the pawl works, and j is its spring. When the lifting-roller J, Fig..6,passes under the carrier it raises or Y oscillates the pawl g, and therefore fulfils the same function in the case as 1n the aforesaid machine-namely, to let out the warp, which 1s effected by the rotation of the ratchet-wheel e, which is released and moved and lets out the warp tothe extent of one tooth at each oscillation of pawl-lever g. The. warp-yarn is shown in dotted lilies in Fig. 6 and full lines in the other figures. It is led from the bobbin or spool b completely around wheel e, thence 4through a spring, k, to ahole, k1, in the end of the carrier, whence it is taken to the center of Vthe loom. The deection of spring k serves to compensate for the shortening by corrugationof the warp in weaving." lis a Y lever, pivoted atfits extremity to thevcarrier.

rlhis pivoted 'end ismade of the angular form shown, and works in a corresponding angular recess made in a plate, m, fastened to the slide f.. By moving the lever l to the position shown in dotted lines, Fig. 1, the wheel e will be drawn 1back out of gear with its pawl 9 therebyA permitting any desired quantity of lever l angular at ,ried by the is capable of being It is carried on a pin fixedl and one edge only of its periphery is serrated,

the other being plain. The object of making its pivoted extremity is to prevent it being shifted by the tension of the warp on the ratchet-wheel e. Vhen the lever l projects above the carrier, as shown in Fig. 1, it must be moved or oscillated as required by hand; but the let-outmechanism may be arranged as shown in Fig. 3, in which case a device, shown in Fig. 5, may he .employed to shift the lever l. 1t consists of a grooved guide, u, jointed to the end of a rod, o, carsame or similar bracket on'the shuttle-carriage to that which supports the lifting-roller. This guide runs round the loom in advance or in rear of the lifting-roller, and is pivoted at its forward end to rod o, which is bent as shown, Fig. 3; and the said guide readily shifted to either position shown, by means of a lever, p, and slidingrod p', operated by hand. The dotted lines show the second position of the ends of levers l, which are shifted from one position to the other by the guide in its passage, as shown by said dotted lines.

The shuttle-carrier e3 d3 g3 h4 before mentioned is so constructed as to allow the shuttle to recede from the center of the loom as the weavin g of the crown of .the hat proceeds, and so cause the circumference of the circle described by the shuttle to increase, and thereby vary the filling, as required by the progress of the weaving. rlhe shuttle proper b is attached to one end of a short shaft, the opposite end of which is a tube, e3, which extends some distance up a larger tube, g3, into which it is drawn by a screw to drawback the shuttle, as required.

Having thus described my invention, I claim as new and desire to'secure by Letters Patent- A l. In a loom for weaving circular goods having'the warp yarns or strands arranged radially, as herein shown, I claim the warp-spools mounted on the shed-forming carriers, and having' the warp yarns or strands extended therefrom to the center, and connected at the ends with a holder thereat, in'combination with a variable shuttle and filling, substantially as herein described. 2. The combination, with the carrier a and spool b, of the improved let-ont mechanism, arranged and operating substantially as hereinbefore described and shown in the drawg JOHN VAN DUSSEN REED. Witnesses:

HENRY T. BROWN, BENJ. l. SHARP.

to be drawn freely off the bobbin. The f fastened to the inside of

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