US1141635A - Loom. - Google Patents

Description

I Qmk s WU A. H. HENDERSON & J. T. MAHON.

LOOM.

APPLICATION FILED AUG-20, 1913.

1 1 4 1 ,635 Patented June 1, 1915.

3 SHEETSSHEET l wi/tmeowo LOOIVI APPLICATION FILED AUG.20, I913.

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A. H. HENDERSON & J. T. MAHON.

LOOM.

APPLICATION FILED AUG.20.I913.

Patented June 1, 1915. 3 SHEETS-SHEET 3.

,AIiBFERT H, BENDERSON AND JOSEPH T. MAHON, OF BALTIMORE, MARYLAND, ASSIGN- 035 TO THE HENDERSON RUBBER COIANY, 0F BALTIMORE, MARYLAND, A.

CORPORATION OF MARYLAND.

LOOM.

To all whom it may concern:

SON and JOSEPH T. Manon, citizens of the United States, residing at Baltimore,-1n the State of Maryland, have invented new and useful Improvements in Looms, of which the following is a specification;

' This invention relates to power looms for weaving fabrics in which the weft or filling is disposed at other than a right angle With respect; to 'the. warp threads, preferably at an angle of aboutforty-five degrees thereto.

The object of; the invention is to provide 11 loom capable of'weaving fabrics of this kind, and which shall be without more complex mechanism than is needed 1n looms for weaving ordinary straight weftfabrlcs; and

, to this end the lay and harness are arranged diagonally to the longitudinal axis of the loom and the warp threads, the latter passingas is usual from" a beam,'through the harness and through the reeds carried by the lay, which latter swings to and'fro in the direction of the warp and diagonally to the length of the lay.

With this and other objects in view, the invention consists of the novel construction, combination and arrangement of parts hereinafter described in detail and set forth in the appended claims. In; the accompanying drawings, Figure 1 is side elevation of a loom constructed in accordance with the present invention. Fig. 2 is a plan view of the same. Fig. 3 is a cross sectional view through the lay and the upper end of one of the swords to show the flexible connection between them. Fig. 4: is a plan view of the bracket for supporting the rollers over which pass the straps that operate the harness frames. Fig. 5 is a sectional view on the line 5-5 of Fig. 4. Figs. 6, and 7 are detail'views of certain features of the invention.

, Similar reference characters indicate the same parts in all the figures.

In the drawings, 10, 10 indicate the side frames of the loom connected together by cross beams as usual, and having arches 11 extending between said side frames at the top for supporting the harness frames 12, and head motion mechanism for operating said harness frames, the elbow levers or jacks 13 only being shown. These arches 1 1, in-

Speciflcation of Letters Patent. Application filed August 20, 1918. Serial No. 785,754.

, threads.

lovers, from the upper end of Patented June 1, 1915.

stead of extending across the loom at right angles to the side frames 10 as is the common practice, lie at an angle of about forty-five degrees thereto, and support the harness 12 at the same angle. 7 I The harness frames 12, any number of which may be used, instead of being placed one behind the other in exact line, as'is customary, are offset slightly so that their side edges will'lie in parallel relation to the warp. This isdone to enable the warp to be moved vertically by the heddles of the harness when the latter is raised and lowered without causing undue friction on the warp The heddles are moved by a well known type ofhead motion, and comprise a number of jacks 13, in the form of elbow acks two straps 14 extend passing over rollers 15 and down to the harness frame, there being two of said straps for each frame. Onthe opposite or, horizontal ends of the jacks other straps 16-pass around pulleys 17 at the bottom of the frame "10,

thence toward the center of the frame and around pulleys, not shown, to the bottom of the harness frame.

each of which The jacks are oper-- ated by chains, cams or other. devices, well understood and therefore not necessary to be shown, for causing them to rock on their.

pivot 18 and thus draw upon or release the straps 14, 16 to raise and lower the harness The lay 19, in general characteristics, is similar to that commonly in use, and has the reed 2O rising from the top thereof through which the warp threads A pass. The lay extends across the frame 10 in a diagonal direction parallel to said harness, the shuttle being thrown back and forth across the lay by the picker sticks 21. The lay 19 is supported on swords 22 pivoted near the floor on the frames 10, but instead of having rigid connection with the lay usually found in looms, the latter is pivoted at 23 by means of ears 24 on the underside of the lay, engaging slots in the heads of. the swords and retained thereon by the pivot pins the swords upwardly behind the rear face of the lay, and a lug 26 extends from the sword under the lay, said finger and lug being in o such angular relation to each, other that when the lay is in its rearmost pos t on, as

A finger 25 projects from each of shown in full lines in Fig. 3, the lay will bear upon the lugs 26 of the swords, but

when moved forward as far as it can go,as

seen in the dotted lines Fig. 3, the lingers 25 form a firm bearing for the back of the lay and thus enable it to beat up the weft threads as'they are laid through the warp against the fabric. Springs 27, 28 are pro vided to bear respectively against the fingers 25 and lugs 26 for the purpos. of bold ing the lay steady as it moves back Iand forth. Without these yielding devices the lay in its rapid movement would ,be subected to unpleasant, disagreeable and dangerous' vibration.

The lay 19 is actuated by the usual crankshaft 2.), from the cranks 30 of which eX- tend rods 31 .and 32, the latter connecting at its opposite end by means of a hinged joint with the lug 33 on the upper end of the sword on the same side of the machine. The connecting rod 31, however, because of the angular disposition of the lay, cannot be connected to the other sword for the reason that an irregular movement if such con nection were made would be imparted to the lay. 1 Therefore, the connecting rod 31, equal in length to the connecting rod 32, is pivotally connected to the upper end. of a radius bar 34:, the lower end of which is pivoted in line with the lower "end of the sword to which the connecting rod 32 is attached, and is of a length equal to the length of said sword from its pivot point to its connection therewith of the connecting rod,

so that the rotation of the cranks 30 imparts similar movements to the rods 31, 32 and the swinging parts to which they are connected. From the radius bar 34 a link 35 is pivotally'united by the same pin that joins the connecting rod 31 thereto, said link extending to the lay, and is there pivotedto an car 36 thereon similar to the ear'33 on the other sword.

The picker shaft37 which, by' means of gearing 38 and 39, rotates at one half the speed of the crankshaft, is provided at each side with an arm 40 projecting in opposite directions from the shaft and adapted alternately to engage tappets ll, 42 on rockshafts 43, 4 1, respectively. These shafts have attached to their ends below the ends of the lay 19, upstanding arms 45, 46, to which are attached straps l7 which move the picker sticks to drive the shuttle across the lay. Owing to the angular movement required by the picker sticks in connection with their swinging movement as the lay travels back and forth, the links 47 may be provided with universal joint connections, as shown in Eigs. 6 and 7, to relieve all strain on the arms 45, 46' and the picker sticks. I p

The warp threads A carried upon the yarn beam 50 pass over a roller 51 and.

fabric. 7 i only by the width of the loom. The fabric, after being woven, passes over a rail 5. and is thence wound upon the cloth beam Owing to the diagonal position of the har-' as set forth.

being driven back and forth. on the forward side of said reed-in order to weave the The width. of the fabric is limited ness frames the rollers 15 over which the operating straps 14 pass, are arranged diagonally to the arches 11, so that the pull on the harness frame will be evenly distributed. The pivot 18 of the jacks 13. however, lies at a right angle to the arch frames. The friction rollers, therefore, to attain proper support, are mounted in a bracket shown in Figs. 4 and 5, and which comprises a plate 56 having a number of parallel fingers 57 between which the pulleys 15 lie, the pintles 58 of said pulleys being supported in depressions or notches 59 formed in the upper side of the fingers.

Each'of said fingers, with the exception of the end ones, has two notches.

Having thus described our invention, we

claim i 1. In a loom, a lay, and swords for carrying and vibrating said lay, pivotal connecmovement.

2. In a loom, a lay, and swords for carrying and vibrating said lay, pivotal connection between the swords and the lay to permit independent movement of the lay, stops on each sword at the rear of and below the lay, and cushioning means interposed between the lay and each of said stops.

3. In a loom, a lay, and swords forcarr'ying and vibrating said lay, pivotal connection between the swords and the lay to permit independent movement of the lay, stops on each sword at the rear of and beneath the lay forming an abutment to limit independ-.

ent movement of the lay, and cushioning means interposed between the lay and said.

stops.

4:. In a loom for weaving a fabric having a straight warp and an inclined weft, the combination with a lay diagonally arranged with respect to the direction of the warp, of swords each connected at one of its ends by a' pivot pin associated with said lay and the other end pivoted to the frame, substantially 5. In-a loom for weaving a fabric having a straight warp and an inclined weft, the combination with a lay diagonally arranged with respect to the direction of the warp,

swords pivoted to the lay and to the frame, yielding devices between the lay and the sword, means for swinging said lay with the swords pivbted to the lay by parallel pivots at right angles to the warp, means for swinging the lay with the warp," and a plurality. of harness frames diagonally parallel to said lay, substantially as set-forth.

7. In a loom, a lay, and swords-for carrying and vibrating said lay, pivotal connection between the swords and the lay to permit independent'movement of the lay, a finger on each sword projecting upwardly behind the lay, a lug also. on each sword extending forwardly beneath the lay, the angular relation between the fingers and lugs being such as to permit limited independent movement of the lay on the sword, and cushioning means between the lay, and each finger and lug., v

8. In a loom for weaving a fabric having a. straight war and an inclined weft, the combination 0' a lay diagonally arranged with respect to the direction of the warp, swords occupying the respective sides of the frame and having the same diagonal relation with respect toeach other and to the lay, a two-cranked shaft, connecting rods of equal length each-connected to one of the cranks, one of said rods being directly pivoted to a sword at one side of the frame, a link pivoted to the second connecting rod at one end and to the lay by its other end, and means for sustaining the jointed ends of the link and connecting rod.

9. In a loom for weaving a fabric having a straight warpand an inclined weft, the

combination of a lay diagonally arranged with respect to'the direction of the warp, swords occupying respective sides of the frame and havingthe same diagonal relation with respect to each other and to the lay, a two-cranked shaft, connecting rods of equal length each connected to one of the cranks, one of said rods being directly pivoted to a sword at one side of the frame, a. radius bar pivoted to the other side of the frame and to the connecting rod on that side and to the frame "thereof, and a link pivotally connecting said radius bar and the lay, substantially as set forth.

10. In a loom for Weaving a fabric having a straight warp and an inclined weft, the combination of power applying means, a lay, a picker shaft, speed reducing gearing for said picker shaft, arms projecting in opposite directions from said picker shaft,

rockshafts, tappets on said rockshafts adapted to be engaged by saidprojecting arms, arms outstanding from said rockshafts, straps attached to said outstanding arms, universal joint connections for said straps, and a shuttle, the construction and arrangement being such that the picker sticks are moved to drive the shuttle across the lay, substantially as set forth.

1].. In a loom for weaving a fabric having .a straight warp and an inclined weft, the

combination of a plurality of diagonally arrange harness r frames, ]&CkS for operating said frames mounted to rock on an axis at a right angle to the planes of the frames,

straps connecting said jacks to the harness frames, rollers for guiding said straps, and plates for carrying said rollers extending parallel with the line of the warp and having parallel fingers projecting diagonally from one edge thereof to form bearings for the harness strap rollers.

12. In a loom for weaving a fabric having a straight warp and an inclined weft, the combination of diagonally arranged harness frames, operating straps for said frames, rollers about which said straps pass, arches forming a part of the loom frame, jacks mounted to rock on a pivot lying at a right angle to said arches, and bracket plates bolted to the arches each provided wlth a number of parallel fingers projecting from one edge between which fingers the rollers are adapted to turn, and sea formed 'on said fingers in which the pint es of said rollers ALBERT H. HENDERSON. JOSEPH T. MAHON.

Witnesses;

.C. B. BULL, CHARLES LOWELL HOWARD.

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