US1168039A - Latch-needle for knitting-machines. - Google Patents

Description

Patente Jau. 1l, 19%.

akamu e rr NIZW J. I

-ie 't known th: t l" limone' wn'ornnrnsr., i citizen oit the l'niteil States. residing in c sion. zssnclAisetts. lia've invented certain minrovenients in llatch-leedles for Enit-A ti bimbi-ined ot' which the following is a speciicrt latch needle :For knitting machines unit the nppeifend of the needle and l' latch to he drawn rough V strain upon distention oi when the needle sti ctefl in the usual manner. This l ttziin in the inanne` hereinafter 1' rence heine' had to the accomlngg dinwing, in v; i i gine t is a side men'. on an enlarged scale, oi the upper portion of a knitting inaits clo chino latch needle of the usual type, and' `is a Similar View illustrating n needle constructed in accordance with Inj! invention. l

n the drawing, l represents the upper portion' of the needle stein or shank, 2 the hook upper rend of the saine, and 3 the swinging latch which closes against the point of the hook when the needle is drawn down through the old stitch, the lat-ter slipping over the latch and hoolr, or, as it is termed knocking` over7 as the new stitch is drawn clown through the same.

in a needle of the nsnal type, there is a gradual distention of the stitch from the time the base of the latch enters the same until the stitch is slipped over the hook, and not only is the stitch theeehy strained but the power required to retract the needle grednallj; increases during this portion of its movement.. l. nd that this disadvantage of the ordinary latch needle can be overcome by importing a forward inclination to the rear face of the upper portion of the needle stem or shank, such inclination extending Vl`rn the hase of the latch to the hook, as ,-1 for instance, at 4 in Fig. 2, the angle presented by this portion of the back of the Specification of etters needle stein, hy pretore that presented by the latch, so thet the widen ai end of the latch and ocres little, if an;Y greater.L tl shank et the il Otel ponn a forward inclination ot the in; the needle stein or shank o mation ot' a smell hooi; and point of the hook in i as that the larger hooi; c t y neeine, and thereby ins agement of the knitting` u it in the ordinary operation the in:

ani aware that latch needles here provided with forwardly inclined hooked upper portions`r ont no needle of which mn aware h: snch relation between the incline the needle stern and the forward latch to prevent distention :"'l

upon the stitch during any portion or the travel of the latch through the saine,

A knitting machine latch needle having at its upper end n hook, and e piioted latch Whose free end engages por-y tion of Said hook. the back ot the needle being inclined forwaedly from pivot of the latch to the hooi; so as to contract the latter, and said inclined hack of the needle HARRY SWNGLEHURST. `Witnesses i Tnnnnsn G. MURPHY, CHARLES H. BUR'I'Te

Images