US1470862A - Loom-heddle frame - Google Patents

Description

Patented Get. 16, 1923.

wir rnrn J. MINVILLE, or irnnvinnn, more LOOM-I-IEDDLE FRAME.

Application filed. December 14, 1922. Serial No. 606,945.

Sometimes called reeds, desi ned for leno weaving, and more particu arly to the needles employed therein. g

In leno frames it is common to forwardly offset between alternate dents broad needles whose upper ends have a continuous unbroken bevel or incline extending the entire width of the needle shank forming a resultant apex with the offset needle portion. T .One of the pair of warp threads traverses a needle eye while the second or disengaged warp thread is, by the harnesSesQliftedover the needle point and then downwardly between its needle and its right hand adjacent dent, and is next elevated over the needle point and then downwardly between its needle and its adjacent left hand dent, thus alternating characteristically of the leno weaving art. Thedescribed'needle end permits the accidental escapeof the disengaged warp thread. Furthermore the point of'the needle often becomes laterally bent so that its/beveled edge either contacts with or in clines laterally towards an adjacent dent so that the disengaged warp thread isinducedfto reciprocate vertically at one side of the needle, rather than to reciprocate alternately at both sides of the needle.

The essential objects of my invention are to overcome the -above enumerated disadvantages.

To this end essentially my invention consists in such parts and in such combinations of parts as fall within the scope of the appended claims. r

In the accompanying form a part of this specification Figure 1 is a fragmentary front elevation of a heddle embodying my invention,

Figure 2, a section of the same on line 22 of Figure 1,

drawings which Figure 3, an enlarged perspective View of the upper endof the needle, and

Figure 4 a like elevation of a needle and adjacent dents showing a thread engaging the needle.

'ke reference characters indicate like parts throughout the views.

In the drawings 8 represents the heedle frame of any usual preferred construction including the common flatmetallic dents or separators 10 mounted therein. -Located between the. dents and fastened thereto at- K their lower ends in the frame are needles 12 which alternate with the dents. The needles are shorter than the dents and are sufficiently broader than-the latter to extend. beyond and in front of the plane of the forward edges'of the latter.

. Each needle is of thin flat metal comprising a broad body portion 14' having upon its upper end a vertical finger 15 formed in its forward lateral margin. The upper end -17 of the finger is downwardly and rear- Wardly beveled from the forward'edge 18 of the needleforming an acutepoint'l9. The 7 rear edge 20 forms an abutment or shoulder.

Extending from the base of the finger 15 is a downwardly and rearwardly inclined shoulder 21 extending to the rear edge 22 of the needle. 24 is the usual needle eye through which passes one of the two warp threads, not shown. The other orfdiseng'aged, warp thread 26 is herein shown in full lines' atone side of a needle, and in broken lines at the opposite side :of the needle in Figure- V g It will be observed byreference to Figures 2 and 4:.that. the vertical finger 15 is parallel withthe dents, and located in frontthereof and spaced therefrom as at 27. Hence even if the finger 15 becomes laterally bent it will not contact with the adjacent dent but the warp thread will pass'through the space. 27 and thence downwardly. I v

Futhermore the advanced finger 15'wholly spaced from the dents forwardly thereof not only makes engagement'of the thread certain, but acts as a positive guide which assists to force the thread down between the needle and dents. This enables the dents to be set closer together and thus increases the number of dents possible in a single frame. a y

l. A heddle-frame having alternate dents and needles, each of said needles comprising a bodyprovided, with an inclined shoulder, and with an eye adj'acent' sai'd shoulder, and a, Vertical finger upon the body above the shoulder in advanceof the dents as and for the purpose set forth;

2. A heddle-frame having alternate dents and needles, each of said needles comprising a body provided with an inclined shoulder,

and with an eye adj acent said shoulder, and

a vertical finger integral with the body above the shoulder in advance of the dents with itsvrear edge parallelewith theldents,ias and fol-"the purpose" set forth.-

In testimony whereof I have affixed signa- 20 ture.

WILFRID J. MI vILLE;

Images