US979594A - Loom for weaving tapes, ribbons, and similar fabrics. - Google Patents

Description

S G I R B A F R A L I M I S D N B S mm Tm SR m In... Am G N W A L W R 0 F M 0 o L b 9 5 APPLICATION FILED MAR.14,1905.

Patented Dec. 27, 191(1 3 SHEETS-SHEET 1.

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A. E. STROUD.

LOOM FOR WEAVING urns, RIBBONS, AND SIMILAR FABRICS.

APPLICATION FILED MAR. 14, 1905.

Patented Dec.27, 1910.

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THE NORRIS PETERS co.,'wsmucm-, u. ::v

A. E. STROUD. LOOM FOR WEAVING TAPES, RIBBONS, AND SIMILAR FABRICS.

APPLICATION FILED MAR. 1 1906.

Patented Dec. 27; 1910.

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TDNTTFQE ARTHUR EDWARD $TROUD, OF DERBY, ENGLAND.

LOOIVI FOR WEAVING TAPES, RIBBONS, AND SIMILAR FABRICS.

erases.

To all whom it may concern:

Be it known that I, ARTHUR EDWARD STROUD, a subject of the King of Great Britain, and resident of Derby, England, have invented certain new and useful Improvements in Looms for the lVeaving of Tapes, Ribbons, and Similar Fabrics, of which the following is a specification.

This invention relates to looms for weaving tapes, ribbons, and smallwares generally, and refers to improvements in looms which are adapted to weave a plurality of the said narrow fabrics simultaneously.

The object of the present invention is to provide a loom that will weave a greater number of narrow fabrics relatively to its length, than is possible with looms as at present constructed, and at the same time provide shuttle propelling, warp shedding, and beating up mechanism, that can be driven at a high rate of speed without risk, and thus generally effect a considerable economy in the weaving of narrow fabrics or smallwares.

Referring to the drawings, Figure l is a front elevation showing a loom constructed according to my invention. Fig. 2. is an elevation of the right hand end of the loom. Fig. 3. is an elevation, and Fig. 4. a plan of one of the beating up combs or devices. Fig. 5. is an elevation showing one of the thin metal ribbons or bars comprising the har ness, and Fig. 6. a plan showing the disposition of the same in the loom. Fig. 7. is a vertical cross section showing detail of the shuttle propelling mechanism. Fig. 8. is a side elevation, and Fig. 9. an end elevation of one of the shuttles. Figs. 3 t 7- 8 and 9 are drawn to a larger scale than the remaining figures.

Like lettersindicate like parts throughout the drawings.

According to this invention the shuttles A (see Figs. 1 2- and 7) are arranged side by side, and the whole are simultaneously traversed in parallel paths at rightangles to the length of the loom, while the warp threads t (see Figs. 1 and 2) are carried up vertically and are distributed so as to form a shed in connection with each shuttle, containing the requisite number of threads. The shuttles A (see Figs. 8 and 9) are approximately triangular shaped in side elevation, and are each comprised of a lower body part Z) provided with upward extensions Z1 6 at its respective ends, and

Specification of Letters Patent.

Application filed March. 14, 1905.

Patented Dec. 27, 19101. Serial No. 250,100.

an upper triangular shaped part (Z, the ends of the base of which fit into recesses formed in the said extensions 6 b of the body part. One end of the base of the upper part (Z is preferably hinged or pivoted at If (see Fig. 8.) in the extension 6 while its other end is retained in the recess in the extension 6 by a spring actuated catch 6Z1, which latter is pivoted on the part (Z and engages with a stop or in a recess in the extension 6 The lower body part b of the shuttle A forms a cradle for the weft spool 7, which rests on its flanged extremities in the inte rior of the same, instead of being centrally supported on a peg or axle as usual. The spool f is retained in position by the sides 6* of the body part b which for lightness may be formed of wire as shown, and also by the upper hinged part (Z, but by raising the said part (Z, the spool f is released and may then be readily lifted out or replaced without removing the shuttle. This system is employed owing to the fact that the shuttles are arranged close together, and no space is left between them for the removal of the spools while they are in the loom, from which they cannot be readily removed owing to the mode of carrying and propelling them. There would under these circumstances be considerable difficulty in removing and renewing the spools if the special provision described were not provided. The spool. 7' may with this arrangement be of some considerable capacity without increasing the size of the shuttle unduly.

The lower part b of the shuttles A are provided with a groove A on each side to admit the edges of the guide bars which are employed for carrying and supporting them, and are also formed with teeth A (see Fig. 8.) on their lower faces to engage with the toothed wheels for actuating them.

The weft thread f (see Fig. 8.) is carried from the spool 7 through a hole g in a tension spring 9 which is secured by an adjustable screw g in the part (Z, and from said hole it passes between the end of said tension spring 1 and the upper part of (Z, to an opening (Z in the latter. The tension spring 9 is adjusted so that its end bears against the part (Z, and the weft thread f is thus gripped between the two, and the tension regulated by adjusting the pressure of said spring, by means of the spring g From the opening 6Z3 the weft thread 7 passes through a loop in the free end of a take-up spring 71, and is then carried through an eye (Z in the top of the part (Z so that it is laid in the proper position in the shed. The take-up spring h which is secured at 71. to the part (Z, serves to take up the slack as the shuttle is passing through the shed, while the tension spring 9 determines the amount of tension put upon the weft thread, and is adjusted by means of the screw 9 The shuttle supporting and guiding mechanism is comprised of back and front sets of transverse guide bars B B (see Figs. 1 2- 6 and 7) set one parallel to the other, the outer ends of which are attached to the back and front rails C C respectively ofthe fiXed framing, while a space B is left between their inner free ends to admit the warp threads 6 (see Fig. 2.) and permit of the shedding of the latter. The grooved bases of the shuttles work in the spaces between said bars 13 B and are of suflicient length to bridge the space B between their inner ends.

The shuttles A are simultaneously actuated by means of two longitudinal shafts D D (see Figs. 1 2 6- and- 7) one shaft D being situated under the inner ends of the back set of guide bars B, and the other under the inner ends of the front set of guide bars 13 These shafts D D are both provided with teeth or toothed wheels D to engage with the teeth A of each shut-tle A, and by the angular reciprocation of the shafts D D and wheels D the shuttles A are traversed along the transverse guide bars B B from front to back and from back to front alternately, the wheels D on either the back shaft D or the front shaft D re maining in engagement with the teeth A of the shuttles according to the position of the latter. These two shafts D D are carried in bearings D (see Figs. 1 and 6) secured to the end standard F and are angularly reciprocated preferably by the following arrangement. At each end of the loom is an oscillating toothed sector E (see Figs. 1 and 2 which is pivoted at E to the said standard F. The teeth of this sector E engage with two toothed wheels E E secured on the respective shafts D D so that said shafts D D are both reciprocated together in the same direction by the oscillation of the sector E. The sector E is oscillated by an eccentric E or crank on the main shaft G, and a connecting rod E connected to said sector E and a crank or eccentric E as shown.

The arrangement described permits of the shuttles A being set close together, a convenient set out being one shuttle per inch in the length of the loom, as owing to the disposition of the shuttle guides and the means for actuating the shuttles, only sufficient space is required between them to accommodate the warp threads used in producing each breadth of fabric, and considerable space is thereby saved.

The harness mechanism is comprised of a number of thin metal ribbons or bars H, (shown more clearly in Figs. 15- and -6) Each of these bars is provided with a series of holes H (see Fig. 5.) that is one to each shuttle, and said bars are disposed longitudinally in the space between the shuttle actuating wheels D as shown more clearly in Fig. 6. The bars or ribbons H are supported in slays or combs and their number is determined by the number of warp threads employed to produce one piece of fabric. The width of the fabric is determined by the number of warp threads and the space between them, which latter is adjusted by the thickness of the members or teeth of the slays or combs which support the bars H. The warp threads I, (see Figs. 1 and 2) which may be carried on any convenient number of warp beams H situated below the shuttles, are carried up through a slay H and are then passed through the holes H in the bars H previously described. The threads are disposed in the latter so as to form a shed for each shuttle, and the corresponding thread in each of the sheds is preferably passed through a hole H in the same bar H. so that the corresponding threads in each shed are controlled by one and the same bar H.

In weaving tapes or plain fabrics every alternate bar H is connected to an oscillating frame and the remainder to a second oscillating frame, and said frames are moved in the reverse directions by cams or like mechanism. In order to produce fancy ribbons or the like, a jacquard may be used in place of the arrangement described, and as each thread in each shed is controlled by a separate and distinct bar H as previously described, special facilities are afforded for producing ornamental effects.

The beating up mechanism comprises combs K (see Figs. 3 and 4E) one of which is provided in connection with each shuttle. These combs K are rigidly secured by brackets K to a bar K (see Fig. 1.) which is common to all so that the whole are operated simultaneously. The bar K is carried in two or more guide blocks K which are pivoted in the ends of bell-crank levers L. The latter are in turn pivoted to a rail L forming part of the fixed framing. The bar K can be moved longitudinally in said guides K and be raised and lowered by an angular movement of the levers L. These two movements when combined give the required movement to the beating up combs K. The said movements are obtained as follows :At the end of the loom are two cam actuated slides M M (see Fig. 1.) both of which are carried in a fixed framing M secured to the main framing. The upper slide M is connected by a link K to the bar K while the lower slide M is connected by a link L and a bar L to each of the bellcrank levers L. The cams for actuating the slides M M are carried on a vertical shaft N, which is mounted on suitable bearings be-- tween the framing M and is connected to the main shaft G by a horizontal shaft 0 and toothed bevel wheels. As the loom makes two picks every revolution of the main shaft G, the wheel 0' on the latter is twice the diameter of the wheel 0 the one it gears with, so as to give the shaft 1? the required ratio of two revolutions to one of the main shaft G.

As shown in the drawings the slide M is actuated by two cams N N situated between and engaging respectively with two antifriction rollers M M attached to the slide M. The slide it 1 is in like manner actuated by two cams N 3 N engaging with two antifriction rollers M M attached to the slide M The cams N N N and N'* are secured on the shaft N previously described, and they impart a positive movement to the slides M M when moving the latter in either direction.

Each width of fabric P (see Figs. 1 and 2) as it is produced passes between pins Q on a bar Q, and said pins are so placed as to deflect the fabric from a straight .line. Stops or guides may be used in connection with said pins, or the latter may be grooved in order to retain the woven breadth of fabric in the correct position. After leaving the pins Q the strip of fabric is led over a roughened take-up roller R, and then under an idle roller 53 (see Fig. and delivered on to a work roller T. The take-up roller R is carried in bearings in a framing Y, and is driven through the intermediary of a train of change wheels, conveniently arranged so that the speed of rotation of the roller R may be varied relatively to that of the main shaft G, in order to produce fabrics of different qualities. The work roller T is of skeleton formation, comprising longitudinal rails T (see Figs. 1 and 2) which are carried on the outer ends of arms T radiating from bosses T secured to a shaft T. The outer parts of the radial arms T slide in the inner parts as shown, and the diameter of the work roller T may thus be reduced so that the lengths of fabric may be removed in the form of hanks. The ends of the shafts T are mounted on forks Y in the framing Y, and said roller is rotated in order to wind up the fabric as it is taken up by the positively driven roller R, by any well known means.

What I claim as my invention and desire to secure by Letters Patent is l. In a loom for weaving a plurality of narrow fabrics simultaneously, a series of shuttles working side by side in horizontal parallel paths transversely to the length of the loom, means for moving the whole of said shuttles simultaneously from front to back and back to front alternately, transverse guides for the shuttles, warp shedding mechanism consisting of a series of longitudinal thread guide bars each provided with a series of thread eyes or holes for the warps spaced the same distance apart as the shuttles so that each guide bar provides the shedding means for the corresponding thread in each of the sheds, and beating up mechanism, substantially as described.

in a loom for weaving a plurality of narrow fabrics simultaneously, a series of shuttles working side by side in horizontal paths transversely to the length of the loom, means for moving the whole of said shuttles simultaneously from front to back and back to front alternately, warp shedding mechanism comprising a series of longitudinal thread guide bars each provided with a series of thread eyes or holes for the warps spaced the same distance apart as the shuttles so that each guide bar provides the shedding means for the corresponding thread in each of the sheds, and beating up mechanism, substantially as described.

3. In a loom for weaving a plurality of narrow fabrics sinniltaneously, a series of shuttles working side by side in horizontal paths tiansversely to the length of the loom, guides for the shuttles, means for moving the whole of said shuttles simultaneously from front to back and back to front alternately comprising teeth on the shuttles and two longitudinal shafts provided with toothed wheels to engage with the teeth of the shuttles, means for reciprocating the two shafts, warp shedding mechanism comprising a series of longitudinal thread guide bars each provided with a series of thread eyes or holes for the warps spaced the same distance apart as the shuttles so that each guide bar provides the shedding means for the corresponding thread in each of the sheds, and beating up mechanism, substantially as described.

1-. In a loom for weaving a plurality of narrow fabrics simultaneously, the combination of a series of shuttles provided with teeth, sets'of horizontal transverse shuttle guides, two longitudinal shafts on the under side of said shuttle guides, means for actuating the same, toothed wheels on said shafts to engage with the teeth of the respective shuttles, warp shedding mechanism situated between the shafts comprised of a series of thread guide bars each provided with a series of thread eyes for the warps spaced the same distance apart as the shuttles so that each guide bar provides the shedding means for the corresponding thread in each of the sheds, warp Shedding mechanism, and beating up mechanism, substantially as described.

5. In a 100111 for Weaving a plurality of narrow fabrics simultaneously, the combination of the shuttles, propelling mechanism for the same, \varp shedding mechanism, and beating up mechanism comprising a series of combs rigidly connected to a bar, levers provided with guides for said bar, and means for actuating said levers and moving the comb bar longitudinally in said guides, substantially as described.

6. In a loom for Weaving a plurality of narrow fabrics simultaneously the combination of the shuttles, shuttle-propelling mechanism, Warp-shedding mechanism and beat- ARTHUR EDWARD STROUD.

Witnesses H. C. SHELDON, J. B. JAMsoN.

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