US831144A - Jacquard mechanism for looms for weaving pile fabrics. - Google Patents

Description

No. 881,144. PATENTED SEPT. 18, 1906. R. S. & H. GOOKSON. JACQUARD MECHANISM FOR LOOMS FOR WEAVING PILE FABRICS.

APPLICATION FILED MAY 12, 1905.

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RICHARD S. COOKSON AND HENRY OOOKSON, OF PHILADELPHIA, PENNSYLVANIA.

JACQUARD MECHANISM FOR LOONIS FOB WEAVING PILE FABRICS- Specification of Letters Patent.

Patented Sept. 18, 1906.

Application filed May 12,1905. Serial No. 260,081.

.To all whom it may concern:

Be it known that we, RICHARD S. OooK- SON and HENRY CooxsoN, citizens of the United States, residing at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have jdintly invented certain .new and useful Improvements in Jacquard Mechanism for Looms for Weaving Pile Fabrics, of which the following is a specification.

Our invention has relation to a J acquard mechanism for employment in the fabrication of pile fabrics, especially adapted for the production of a Brussels-carpet fabric such as has been shown and described in the United States Letters Patent No. 731,433, granted to us under date of June 23, 1903-; and in such connection it relates more par-f ticularly to the arrangement and form of needles for mani ulating the pile or face-f threads in the fabrication of such a fabric,; as well as other pile fabrics.

Hitherto all the needles employed in a; Jacquard mechanism for employment in the; fabrication of pile fabrics arranged in .a row were each provided with an eye and a loop/i the eyes of the needles serving to control: cords normally unlocked from the trap-f board of the Jacquard mechanism and the loops of all the needles serving to control additional cords normally locked to the trapboard. In a ten-needle Jacquard mechan-i ism, for instance, twelve cords and their re-: spective ends or warp-threads were con-, trolled by the needles, which threads werei divided 'in sets of six warp-threads, each set of six warp-threads passing through a denti; in the reed. The arrangement of the needles l was such that the first five needles controlled six ends in the first dent and the remaining;

five needles controlled the six ends in the adjacent dent of the reed, therebyrequiring =two dents for each row of needles. The single warp-threads from six frames each. supplied two ends, one end for each dent of the reed. If the six threads in .each dent were divided in pairs of threads, each pair, for example, had ,a distinct colorfor in; stance, green, brown, .and cru. It was found that by the foregoing-described ar-, rangement'of the needles in eachdent of the reed either a single warp-thread or a pair of; [different-colored warp-threads, or a pair .of% green or brown .colored warp-threads were;

vention are, first,

with the usual weight or lingo twelveends come from six frames f to f inraised. It was, however, impossible to raise two cru-colored warp-threads in each dent, either alone or in conjunction with other colored warp-threads, since one of each of these threads is supplied by the bottom frame, the cords of which are controlled by the loops of all of the needles, one needle in each set of five needles being operated to lock its end controlling an cru-colored warpthread supplied by an intermediate frame. Hence this needle, by means of its loop, simultaneously unlocked the cord from the trapboard controlling one of the ends or warpthreads of the bottom frame, and for this reason only one cru-colored warp-thread of the intermediate frame could be raised in a dent of the reed.

The principal objects of our present into overcome the abovedescribed disadvantages and to so arrange the needles-for instance, in a ten-needle Jacquard mechanism-that two ends or a pair of warp-threads of all the varied colored pairs of warp-threads may be raised in addition to one or more warp-threads of difierentcolored warp-threads, and, second, to so arrange the needles that certain needles thereof actuate one cord and warp-thread only and certain other needles thereof actuate two cords and warp-threads.

The nature, scope, and characteristic features of our'invention will be more fully understood from the following description, taken in connection with the accompanying drawing,

illustrating in diagrammatic view a portion of the Jacquard mechanism, ten needles arranged therein, and the manner of connecting and actuating twelve ends or warpthreads with the same embodying the main features of our invention.

Referring to the drawing, a represents the board from which the cords c to 0 inclusive, are suspended.

dis the trap-board, which is raised and lowered by means (not shown) and which actuates the cords passing therethrough by engaging their knots 0 when the cords engage thereof. Each of the cords c to c, inclusive, pass through the cumber-board 0 and engage a single end or warp-thread g g, b b, and e e by means of an eye 0 Each cord at itsend is provided 0 These the eye extensions (1 clusive, each frame supplying two ends 9 g, b b, and e 6, one end for each dent r or r of a reed r. Inorder to raise certain colored ends to produce, for instance, the coloring e ffect in the Brussels-carpet fabric shown and de scribed in said United StatesLetters Patent No. 731,433, two ends in the sets of'sixends are of the same color-that is, green, brown, and cru. In order to properly manipulate the twelve ends either singly, in pairs, or in sets of three or more threads, the needles 1 to 10, inclusive, are arranged in manner: All the needles employed are provided with an eye 7), through which thefirst ten cords c, c c 0 c, 07, c 0 and 0 are conducted. In addition to the eyes i, the needles 4 and 5 and 9 and 10 are provided with loops i, arranged intermediate of the eyes i and hooks 2' thereof. Through these loo s i the remaining two cords 0 and 01 contro ling the ends a and e of the bottom frame f containing cru-colored yarn, are conducted. As shown in the drawing, the cords c and 0 normally pass through the eye extensions d of the trap-board d and are therefore locked to the same, while the cords c to 0 inclusive, normally pass through the eyes d of the trap-board d and are therefore not lo cked to the said trap-board d. This board (1 will therefore raise the cords e and 0 and the crucolored ends e and e of the bottom framef one in each dent r or r of the reed T, when the needles are not operated. This actuation of the cords 0 and 0 will take place only when the Jacquard card is, held opposite the needles by the J ac uard cylinder Z, is provided with the holes kf, in which instance the needles are not actuated from left to right in the drawing, but remain in their inoperative position. In order to render these cords 0 and 0 inoperative, it is necessary to provide blanks in the card It opposite the needles 4 and 5 and 9 and 10that is, these needles are shifted by the cylinder Z from left to right, by which movement the cords 0 and 0 by means of the loo s i are brought out of engagement with t e contracted extension of the eye 61 and into engagement with the eye d. By the shifting of the needles 4, 5, and 9 and 10 the pair of crucolored ends e and e of the bottom framef is not raised by the trap-board d; but in its place the cords c and c and c and 0 are actuated, which raise a single green and brown colored end in each of the dents 1" andm of the reed r. The raising of each of these ends is accomplished since the cords c c", c, and 0 have been shifted into engagement with the eye extensions (1 of their respective eyes d in the trap-board d. By this arrangement of the needles and ends it is possible to raise in each set or Weave of the pile fabric to be produced, either the green, brown, or cru colored ends or a combination of these ends by arranging blank spacesiin the I following the card is opposite their respective needles. The pile fabric (not shown) will have in this instance two colored ends arranged side by side in the fabric, while beneath each end will be buried four ends not raised by the needles. All the. needles after being actuated by the card is and the cylinder Z are shifted back into their normal position by the shifting-board m in a well-known manner, which movement by the needles 4 and'5 and 9 and 10 and their loops i is utilized to bring the cords e and 0, .controlling the cru-colored yarns e and e of the bottom frame fiback into engagement with their respective eye extensions d in the trapboard d when the same have been disengaged therefrom. V

. Any combination of thegreen, brown, and cru colored ends may be raised as long as single ends or a pair of green and brown colored ends are to be raised in each dent 1" or T in which instance the cords c to 0 9, inclusive, are shifted by the needles into engage ment with the extension d? of their respective eyes 62, in the trap-board d, by which movement the cords e and e are simultaneously disengaged from the trap-board d.

When, however, two cru-colored ends in each of the dents r or r are to be raised, it is to actuate the needles 3 and 8 permit all other needles to remain in- The needles 3 and 8 must beshifted only necessary and to active.

to lock their cords c andc to the trap-board d, each of which controls one end of the crucolored ends of the top frame f. The crucolored ends of the bottom frame f, by meansof their cords 0 and 0 are normally locked to the trap-board d, and thus require no actuation by their respective needles. The trap-board will thus raise two crucolored ends in each of the dents r and r of the reed r. Instead of raising two ends in eachdent r or r of the same color three similarly-colored ends and one or more other colored ends may be simultaneously raised in the dent through proper manipulation of the needles by the Jacquard card is and shiftingboard m. The loops 2" (shown in thedrawing) are of a size adapted to disengage the cords 0 and e from the trap-board (2 when actuated by the needles 4 and 5 and 9 and 10, respectively. All other needles are shown as being minus such a loop i in order to permit of the manipulation of six ends by five needles in each dent of the reed 1" and of the raisingof the certain colored ends of the bottom frame f. The object of notactuating the cords e and 0. by theneedles 1, 2, 3, 6, 7, and 8 can also be accomplished by making the loops i of such a size or length as to prevent an operation of the cords and 0 when their respective needles are shifted by the Jacquard card 76 and board m. Thus the needles 1, 2, 3, 6, 7, and 8, if desired, may be provided with such long loops i ,-as shown in dotted lines. In the present instance a ICC.

Jacquard mechanism with ten needles has rections,

been shown, five of which actuate siX cords and ends connected therewith in a dent of the reed 1. However, by the arrangement and form of the needles shown eight needles may readily actuate ten cords and endsthat is, five cords for each dent of a reed r.

Having thus described the nature and objects of our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a Jacquard mechanism for looms for weaving pile fabrics, two series of needles arranged in a single row, in which one series have eyes adapted to move a single cord to control a warp-thread, and in which the other series have eyes and loops adapted to move two cords to control their warp-threads independently of the series of needles moving the single cord to control its warp-thread.

2. In a Jacquard mechanism for looms for weaving pile fabrics, two series of needles arranged in a single row, the needles of one series having eyes to move one cord to control a warp-thread, when shifted in opposite d1' weaving pile fabrics,

and the other series of said needles having loops in addition to eyes to move certain additional cords to control two warpthreads, when shifted in opposite directions.

8. In a Jacquard mechanism for looms for two series of needles, one series of needles having eyes and the other series having eyes and loops, a trapboard, cords passing through the eyes of said needles and normally unlocked from the eyes of said trap-board and the other cords passing through the loops of said needles and normally locked to said board, the needles having eyes only, adapted to move their respective cords independently of the other needles having eyes and loops.

In testimony whereof we have hereunto set our signatures in the presence of two subscribing witnesses.

RICHARD S. COOKSON. HENRY COOKSON. Witnesses:

J. WALTER DOUGLASS, THOMAS M. SMITH.

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