US1014771A - Loom harness-heddle. - Google Patents

Description

E. P. PARKS.

' Loom HARNESS HEDDLB.

APPLIOATION PIL-BD 00T, 1, 190s.

Patented J an. 16, 1912.

H610. `Fall.

ES` WW??? l Harness-Heddles.

l UNITED STATES vPATEN T OFFICE.

EDWARD' F. PARKS, OF PROVIDENCE, IRI-IODE ISLAND, ASSIGNOR OF ONE-HALF ATO, HERMAN J. WATERHOUSE, OF WARWICK, RHODE ISLAND.

LooM HARNESS-HEDDLE.

Patented Jan. 16, 1912.

Application filed October 1, 1908.- Serial No. 455,706.

To all whom it may concern:

Be it known that I, EDWARD F. PARKs, a citizaen of the United States, residing at Providence, in the county of Providence and State of Rhode Island. have invented a new and useful Improvement in Loom a specification.

My invention is an iml'irovement in loom harness heddles. its purpose being to facili-v tate the removal and replacement of ,the

- heddles inthe harness frame. and also facilitate the threading of' the heddles in drawing in and piecing by avoiding the use of a reed hook as is usual.

The nature of my invention and of its embodiment and use are fully disclosed in the following lspecification and accompanying drawings which latter illustrate the invention as follows:

Figure 1, the' preferred construction of my invention; Figs. 2, and 3, details of the eye; Fig. 4, a detail of the preferred form of suspension device; Figs. 5, 6 and 7, the mode of applying the heddle to the heddle bar; Figs. 8, 9, 10, 11, 12 and 13, modifications. l

Referring to Fig. 1, the harness frame 2 and heddle bars 3 and 4 are of usual construction, the heddle bars being preferably metal strips of rectangular section, suitably secured to thc frame 2, and in -such manner and relation as to properly suspend'- the heddles.

The individual heddle comprises preferably a body element 8, suspension devices.

5 and 6, one at each end of the body element, and aneye 7 intermediate-the suspension devices. y

The suspension devices are particularly designed for use with heddle bars of usualform and construction and without their modification. Each suspension member is formed with a socket Q-Fig. 4-to receive the end of the body member 8, which has its extremity enlarged, preferably into a head 10, to prevent its withdrawal from the the prong has, besides the detent edge 12,I

a hook or abutment 13, against which the of which the following is heddle barvinaystrike as the-heddleA shakes impact due to such jar or shake entirely on one rong instead of on two alternately, in whic latter case, the impact tends to separate the prongs. The edges let-14 of the prongs are inclined toward each other forming a clevical indent 15.

In applying the heddle to its heddle bar 3, it is brought against the bottom edge of the latter as indicated by Fig. 4, where 3 indi cates the heddle bar the clevical indent l5. Fig. 5 shows the same relation in plan view, looking down in the direction of the arm A of Fig. 4. Prossure of the heddle against the heddle bar causes a twisting action in the direction of the arrow BFig. 6, which may beangmented by a positive twist of the heddle by hand as it is applied. .As the heddle twists, or turns, the prongs ll-'ll open,'due to contact with the lower edges of the heddle bar,

and finally lie'fiat against the heddle bar as in Fig. 7, when the heddle can be slipped over the heddle bar until it passes the hooks 13-13 of the' prongs 11411, when it will assume its normal position.

The veye 7 is preferably made trom sheet metal, orrned with -necks- 16-16` to take and hold the body wire. 8. 'It isfurther formed with a solid or continuous wall 17 on one side of the yarn aperture 18 and with a divided wall opposite. .The space hetween the divisions of the wall constitutes a yarn Way inlet 19-Fig. 3, whereby the heddle is threaded. The divided wall consists with its lower edge inv in effect of twovhorns .20-20, preferably,

overlapping in such manner and to such eX- tent that the inlet 19 is substantially'in the same plane with the axis of the heddle. Therefore, while a -slack yarn maybe introduced into the yarn aperture 18 through the side of the heddle, a yarn that is taut or relatively so as run in a warp in weaving, can neither enter or leave the heddle.

The heddle eye 7 is 'prevented from-displacement on the wire body 8, by the curvature of the latter where formed to pass the yarn aperture 18, but more particularl by the enlargement or shoulders 21-21 which though preferably formed' integralwith the wire 8 may be otherwisesuitably formed or applied. These shoulders being conical or tapered I perform the further function of Wal'p yarns are serving as a guide for the warp yarns so that as the -harness travels up and those yarns which are adjacent the heddles may not catch on the ends ofthe eye.

It is to be further notedv that in my preerred construction shown on large scale in Figs. 2 and 3 and also in the construction vdisclosed in Figs. 10 and 11, the closed wall struction are employed, the threading orf drawing in,7 incident to preparing Aa new Warp for weaving or piecing is arduous and unnecessarily time consuming. The threading is accomplished by passing a reed hook through the heddle eye, catching a loop or bight of the warp yarn and bijen withdrawing the hook fromv the heddlegfiye,

ybringing with it the loop of warp yarn.

It is obvious that where a largel number of harness is used, the operation must require i 'both skill and patience.

, placed accidentally With my inlet eyed heddle, no reed hook need be employed, but the`warp yarn can be inserted in the heddleeyes through its side with only the fingers, and much ymore easily and quickly than with a reed hook in the usual manner. A further advantage lies in the fact that the yarn aperture in my improved heddle can be smaller than is required to admit a reed hook thereby lessening. the yarn play or back lash in the eye and-increasing the effectiveness of the liar ness motion.

The improied s uspension device' of my heddle, permits ready removal and replacement of the heddle without removal of the heddle bars. Because the prongs overlap and open in the direction of extent of the heddle bar (or substantially perpendicular to their own planes of position) admitting the latter only by a twisting action on the part of the heddle, the latter cannot be disfor there is noi accidental tendency conceivable to twist and spring open the suspension device concurrently. Further, there is a distinct advantage in making the suspension devices and eyes, separately and individually. Thus made, material can be selected that is best adapted for the particular function of each element of the heddle and with particular consideration for substantial structure and 'effective operation. Made individually as described, the parts in question are susceptible of more economical treatmentand better finished.

It is obvious that?. my invention may be embodied -in other y forms than those dedown,v

4into theA position indicated 1 lines,

aperture,

a broken end, v t

'wire,the body 29 being scribed. Fig. 8 shows a form of heddle, the eye. Q2 of -which is madeintegral with the body 50 by flattening the latter. The yarn vinlet in this case is a straight' slit 23 through one side of the eye. By springing the heddle by the dotted the slit Fig. 9 illustrates an embodiment of my Ainvention in a heddle made from flat wire.

Here the yarnV inlet is formed by slitting or splitting the heddle at one side of the yarn and then peening or drawing out the extremities 24-24 so theyv overlap ip the sante fashion 'as in Figs. 2 and 3.

Fig. Dit rmd Fig. -11 show a construction in which the heddle body is made in sep- , arate portions 25 and 26, each of .which has an enlarged end 27 and`28 respectively, to prevent its withdrawal from the eye.

Fig. 12 shows an eye formed of round bent through about three quarters of a circle to 30, where it lis bent back upon itself and then formed round for about a turn and a quarter to 31, where it is bent into alinement 4with the portion 29. The turns are in such relation that an opening 32 is left between adjacent coils for a is entered at 31 and is yarn inlet. The yarn .23 is opened to admit a yarn.V

represented'by 33 as it is nearly within the yarn aperture. i

`The suspension member is likewise sus.- ceptible of modification. lVhile preferable that the spring prongs be formed with` opposed hook or abutment portions .as indicated by 13 in Fig. 4,'it is not essential, as is indicated at the top of Figs. 8 and 9 and at the bottom of Fig. 1 where nov posed abutments are indicated.. As indicated in F ig 8 at the bottom, thelsuspension device may ,be formed in part by the body member and in part by an, att-ached element lbody member 33 is round wire which is vsuch op-i 34. In this case as illustrated, the

twisted'together with the element 34, alsoA a round wire. As indicated: by Fig. 8 it is not essential that both prongshaveincline'd edges to form the clevical indent. -Here the prong abutment 38. The mode of application to the heddle bar is identically as above described. 4

Fig. 13 shows vstill another form of suspension device where the two prongs are separate member 40. Here each prong is formed by a sharp return bend of its extremity il at an acute angle with its main portion. The clevical indent 49. is formed by the opposed outer inclined surfaces l13-4E3 while the inner surfaces ali-#li act as abutments. Fur-A ther, the form of heddle bar is-not limited to any particular shape.or proportion, Fig. 13 showing a round bar, while elsewhere I have shown a rectangular bar of usual form.

35 isV straight and the prongA 36 is formed with an incline 37 and a hook or members 39-39 attached to a body This is a matter of distinct advantage however, my improved heddle is applicable to an usual form of heddle bar.

Iherefore Without limiting myself as to the exact form or arrangement I claim:

. l. In a loom harness, the combination with the harness frame and a heddle bar, of a heddle having spring prongs thatl normally are perpendicular to the direction of extent of the heddle bar, and open by separation in the direction of extent of the heddle bar as described.

2. In a loom harness, the combination With the harness frame and heddle bar, of a heddle having spring prongs separable in a direction substantially at right angles to the planes of said prongs and with edges n inclined to cause a twisting motion of the heddle in its application to the heddle bar.

f with said other ,35

3. In a loom harness, the combination Withthe harness t1. ame and heddle bar, of a heddle having spring prongs separable in a direction substantially at right angles to their respective planes and` having edges inclined to form a elevical indent to receive the edge of the heddle bar and to cause a twisting movementl of the heddle in its application to the heddle bar.

4. The combination vwith a harness frame and heddle bar therefor, of a heddle having a spring prong with an inclined outer edge overlapping another portion of the heflle to engage the heddle bar and by co-action portion to cause turning of the heddle bar to spring the'prong to admit Y the bar to the heddle, and a hooked interior edge to retain the bar after it has been admtted.

5. An eye for a harness heddle With necks to receive the heddle body and overlapping horns to term an inlet to the yarn aperture of the eye.

6. A heddle for a loom having an eye, and

of the heddle, leading to the eye.

7. The combination in a harness heddle with a body, of attached suspension members and an attached eye with a thread passage leading Within the same.

8. The combination With a harness heddle having transversely overlapped prongs separable 1n a direction perpendicular to the-planes of the prongs, of an attached eye.

9. An eye for a harness heddle having a yarn aperture, a thin Wall at one side of the aperture through Which Ais an inlet to the yarn aperture, and a relatively thick, solid Wall opposite l'the inlet.

10. An eye for a harness heddle having-a yarn aperture, overlapping horns `at one side ot' the yarn aperture to form an inlet thereto and opposite the horns, a relatively thick port-ion to deflect passing yarns away from the horns as described.

ll. In a harness heddle for looms, the combination with an attached eye, of a body portion having tapered shoulders abutting the eye to secure the latter and prevent obstruction to adjacent yarns as described.

l2. A heddle for` a loom having an eye, an open-ended thread passage leading to said eye, and a device to retain a Warp thread in said eye. I

18. A heddle having an eye and a thread passage leading to said eye, and means to prevent the thread from entering the thread passageA from the eye.

14. 4As a new article of'manufacture a heddle having an eye formed therein for the thread, some part of the material Which forms such eye being split at right angles to the axis vof said eye.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDVARD F. PARKS.

Witnesses:

FRANK D. BABCOCK, GRACE W. BROWN.

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