US2099001A - Multiple-jacquard motion - Google Patents

Description

Nov. 16, 1937. M. CHILDS 2,099,001

MULTIPLE JACQUARD MOTION Filed April l2, 1935 2 Sheets-Shea?l l Nov. 16, 1937. v M. CHILDS 2,099,001

MULTIPLE JACQUARD MOTION Filed April l2, 1955 2 Sheets-Sheet 2 FIG'zM Patented Nov. 16, 1937 PATENT (.)FFICE4 MULTIPLE-JACQUARD MOTION Marice Childs, Philadelphia, Pa., assignor to George T. Downs, Philadelphia, Pa.

Application April 12, 1935, Serial No. 15,959

1 Claim.

This invention has reference to jacquards for fabric-weaving machines or the like and, more particularly to carpet-weaving looms in which it is desirable, as well as essential at times, to run 5 over backward or forward predetermined cards without working from them. This operation has heretofore necessitated the weaver mounting the platform about the top of the loom to effect turning of the Jacquard card-cylinders until the requisite card faced the needles; such operation however being generally carried out by a helper v with incidental loss of time for the weavers and added expense to the manufacturer.

The primary object of this invention is the provision of a novel mechanism whereby looms including two or more jacquards are coordinated as to be easily movable backwards or forwards by the Weaver.

Another object is the provision of a novel coordinating attachment whereby multiple-Jacquard card-cylinders can be rotated in unison either backwards or forwards with a minimum of eiTort and expenditure of time.

A further object is to render possible the utilization of a less number of cards in the weaving of repeats, or, in other words, for a manufacturer vto cut or stamp just sufficient cards to complete the pattern, in contradistinction with the'prevailing practice of being compelled to provide a full set for the entire length of the carpet being woven.

A still further object is to decrease piece-work costs, as well as reducing the card costs by some twenty-five to fifty per cent varying with the pattern and style of the carpet or rug being woven.

Other objects and advantages of the invention will be pointed out in the detailed description thereof which follows, or will be apparent from such description.

In order that the invention may be readily understood and its practical advantages fully appreciated, reference will now be had to the accompanying sheets of drawings, in which are depicted practical embodiments thereof. However, it is to be understood that changes in the details of construction may be made within the scope of the claim without departing from the fundamentals of the invention.

In the drawings:-

Fig. I is a broken side view of the upper part of a carpet Weaving loom of standard constructionA with the novel multiple-Jacquard motion of this invention applied thereto.

Fig. II is a broken front view thereof.

Fig. III is a top plan View of the same, drawn to a reduced scale.

Fig. IV is an end View, on a larger scale of the Jacquard cylinder coordinating and operating means.

Fig. V is a detail View of a sleeve bearing, hereinafter more fully described.

Fig. VI is broken side view of a modified form of the invention; and,

Fig. VII is a top plan View of the same.

In all the views corresponding parts are designated by the same reference character, except as hereinafter pointed out.

Referring more in detail to the drawings the numeral I indicates fragmentary portions of the 15 upper side frame members of a standard type carpet or rug Jacquard loom; while 2 comprehensively designates the upper motion affording bearing for the respective shafts 3 on which the card cylinders 4, with pentagonal end sprockets 20 5, are intermittently rotatable in the known manner. The foregoing parts form no part of this invention and are merely referred to by way of properly locating the present improvements.

In accordance with the instant improvements, 25 there is attached to each steadier-bracket 6 of the aforesaid upper motion 2, by suitable securing means 1 a drop-bracket or downwardly-extending arm 8, preferably inclined at an angle of forty-five degrees. The lower end of each arm 30 8 is suitably apertured at 9 to receive a bushing I0 which affords journal bearing for a shaft II extending the full length across the several Jacquard units I2, Fig. III, included in the loom. From Fig. V it will be observed that each bushing 35 I is made a free fit in the arm aperture 9 so as to positively enable correct axial-alignment of the shaft II by eccentric movement of the bushing I B, whereupon the latter is secured at the requisite adjustment by means of a lock screw 40 or stud I3, which when set will hold the bushings in perfect alinement to prevent binding of the shaft I I therein. It is also to be noted that each bracket or arm 8 is preferably made in two sections I4, I5 connected together by a bolt IB en- 45 gaged in the one section Ill and passing through a slot I'l in the other I5, whereby said bracket or arm is rendered longitudinally telescopic, for a 'purpose later on specified, The section I5 is also by means of a set screw 2l, are pentagonal sprockets 22 in planar alignmentl with the Jacquard cylinder end sprockets 5 hereinbefore referred to. Trained about the planarly-related pair of sprockets 5, 22 is an endless belt or band 23, of leather, flexible strip steel or other suitable material, having rectangular blocks 24 riveted or otherwise secured to the inner face thereof. These blocks 24 are of suitable dimension to snugly g engage between the teethY 22 of the sprockets 22 so that the endless band 23 is effectively retained in proper registration with the sprockets 5, 22. It is well to note that the blocks 24 are of a thickness and accurately spaced longitudinally of the band 23 so as to coact with the outer portions of the teeth 22 of the sprockets 22 but do not engage on the intervening flats 22", Whereas they engage onfand coact with the flats 5 of the card cylinder sprocketsf and thereby rotate said last mentioned sprockets uniformly and Without any slippage in veither direction of rotation. Y

vTheshaft Il may be fitted at one end With a ycrank handle 25 whereby it is rotatable in either direction, in an obvious manner; or as shown in Figs. VI and VII it may be fitted with a sprocket 26, coordinated-by a suitable endlessk connector 2l about a second sprocket 28 supported by a bearing 29, located at a level convenient'to the Weaver, Vand provided With an operating handle k3l).

- From the foregoing it will be apparent that vby turning either handle 25 or 30 the shaft Il'will be rotated and through the endless bands 23 and sprockets 22, 5, that the card cylinders 4 will be turned in unison, to either effect a repeat or to change any faulty card 3| Furthermore, it will be self-evident that instead of cutting or stamping a complete set of cards covering the entire length of the Weave, it is only necessary, as a result of this invention, to out or stamp cards covering a predetermined number of inches of pattern and effect continuing repeats wherebya great saving is effected in material costs, labor and time. f' Y Obviously, it will be understood that in practice various changes in the form, proportion, size and minor details of construction within the scope of the appended claim may be resorted so Without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described the invention, I claim:-

In combination with a battery of Jacquard loom -card cylinders and their Steadier brackets, said 4for rotating the shaft, as and for the purpose set forth. v

MARICE CHILDS.

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