US1023312A

US1023312A - Knitting-machine.

Info

Publication number: US1023312A
Application number: US46713108A
Authority: US
Inventors: Emil A Hirner
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-12-12
Filing date: 1908-12-12
Publication date: 1912-04-16
Anticipated expiration: 1929-04-16

Description

E. A. HIRNBR.

KNITTING MAGHINE.

APPLICATION FILED 1330.12, 1908.

' 1,023,312, Patented Ap1r.16,1912

WITNESSES: ENVENTQHI Y fimaflwmaffi @Mipg z E. A. HIRNBR. KNITTING MACHINE.

APPLICATION FILED DEG.12, was,

Patented Apr. 16, 1912 4 SHEETS-SHEET 2 I HIIIII 1n lNVENT ORI EMILJHIRJXEIZ E, A. HIRNER, KNITTING MACHINE. APPLICATION FILED DEG.12,1908.

Patented Apr. 16, 1912.

4 SHEETS-SHEET 3.

FIQ M:

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MR m y l m E. A. HIRNER.

KNITTING MAGHINE.

APPLICATION FILED 1330212, 1908.

1 ,02 3 ,3 1 2. Patented Apr. 16, 1912.

4 SHEETS-SHEET 4,

WITNESSES: INVENTORI inactive, while the cylinder needles knit the welts, together with means for simultaneously lengthening the stitches knit by said cylinder needles at this time. I further supply separate means for lengthening the stitch for the production of a loose course for transfer purposes quite independent of the means for lengthening the stitches during the knitting of the welt upon the cylinder needles. This is because special considerations apply to each of these regions requiring loose loops and the automatic lengthening of the stitches which will serve for one will not serve for the other. I

In the accompanying drawings, Figure I, is a plan view of the upper portion of a machine embodying my invention. Fig. II, is a front elevation of the same. Fig. III, is a central vertical section taken on the line III, III, of Fig. I. Fig. IV, is a horizontal section taken on the line IV, IV, of Fig. III, showing the web holders and needle grooves together with means for pivoting said web holders. Fig. V, is a fragmentary sectional view of the machine showin the method of forming the welt. Fig. V is a fragmentary sectional view taken on line VI, VT, in Fig. III, and showing the cam for depressing the web holders. Fig. VII, is asectional view of the fabric.

In said dr,awings,the bed plate 1, which may be mounted upon suitable standards, is

providcd with an annular groove-2, torn-ling a hearing for an annulus -t. Said annulus is mounted to r otate on the bed plate 1, and is formed with a depending circular rack 5, on its under side meshing with a suitable driving pinion, not shown. The annulus 4, is maintained in proper relative relation with the bed plate 1, by means of buttons 6, attached to said bed plate.

Mounted upon the annulus 4, is a'cam cylinder 10. which is adapted to rotate therewith. t aid cam cylinder 10. is provided on its inner wriphcry with the cams usually employed in machines of this generate-lass for ('oiipcrating with the needles, including a stitch cam which is vertically adjustable to vary the length of the stitches produced.

incdlc cylinder 12, is mounted in stationary relation to-thc bed plate 1, and provided with radial grooves l-t, for the needles 1;"), and radial grooves l6,- tior the web holders 17. The grooves 16, are cut deeper than the needle grooves 14, but extend only for about one-half of the length of the needle cylinder. The needles 15, are maintained in their positions within the needle grooves of the cylinder 12, by an annular flange 22, upon the upper edge of the cam cylinder 10. The web holders 17, are vertical in position, and are each provided on their inner edge with a notch 19, for the rece ition m" a wire 20, which extends around the needle cylinder-'12, within the circle formed by the needles lying in a circumferential groove 21, formed in the needle cylinder. This wire acts as a fulcrum for the'web-holders 17, to rock upon. The web holders are provided with the 'usual web holding notches 19, and also with downwardly and inwardly curved noses 23 with blunt or rounded ends, as best seen in Fig. V; These noses work over the upper edge of the needle cylinder, and by reason of the rockin motion of the v upon their fiilcrum, have a downward, as well as an inward motion, and push the welts as they are formed away from the cylinder needles, in which motion they co-h act with the opposing concaved peripheral' surface of the dial plate 35.

The web holders 17, are'operated by an upper cam plate 24, mounted on cam ring 27, and a. lower cam ..5, the can: plate 2%, coming into contact with the backof the web holders above the point atwhich they are fulcrumed, and the cam 25, at a point below the'falcrum. These parts are best shown in Figs. I, V, and VI. The parts i above the fulcrum act to hold the upper ends of the web holders, in their inner position, except Where a recession ort-he cam surface 24, permits them to be rocked backwardiy under the influence of the lower'eam 25, which is pivotally mounted from the linden side of the ring .27, and is maintained yield ingly in the path of the tower ends of the web holders, by the engagement of its later ally extending arm 28, with a spring plate 29, attached to the cam cylinder -10. "This lower cam 25, is adapted to tilt the upper end of each web holder outwardly as the adjacent cylinder needles are drawn down to form a stitclnv In order to permit the ready removal or insertion of either the web holders or the needles, without dismantling the machine, I provide the cam ring 27, with a detachable segment or gate 90, which is located directly above a notch 91, within the inwardly projecting' annular flange 22, formed on the inner periphery of the cam cylinder 10. The said gate 90, of the cam ring 27, is pivoted about the screw 92, and is normally retained in position by the'serewfiti, whose Shani; is received within a slot '95, in the swinging end ofthe said gate 90. By swinging back the said gate 90, any broken needle or web holders may be readily withdrai'vn and'new ones inserted in their stead by simply ad'- iwie its

vancing the notch 91, to correspond with the .Mounted upon the cam cylinder 16, are" two standards 30, audB'l, suppnrting'a yoke 32, from which is suspended, a. dial cam plate 34, arranged to rotate with said cam cylinder it), and a dial neediep'lnte 35., ar

3O larging the'loops produced by the cylinder from needles. After a predetermined inteiwai of time, the roller cam 50, is again raised to the level of and to engage cam arm 145, on shaft 43, whereupon the machine is again thrown into its original position to produce tubular ribbed knitting. After knitting about, a dozen avel courses, the cam 50, is raised to the level of cam arm 75, to engage itto depress the cylinderstiteh -am, as hereinbet'ore explained, for knitting a course of loose knitting, for marking the line upon which the fabric is to be out or transferred. After this the roller cam 5. is again raised to the level of the arm i l, to engage it, whereupon the parts just me tioned again resume their initial per ion for, the continuation of ribbed knitting. These operations are successively and automati'cally repeated, as by any Well known pattern chain or pattern wheel mechanism and result in the production of ribbed string-work, with horizontal Welt tubes occurring at regular intervals, determined by the adjustment of the pattern mechanism which controls the motion oi the roller cam 50.

It will be remembered that there are only half as many stitches in the welt, as there are in the ribbed tube, hence the reason for depressing the cylinder stitch cam, for enneedles during the knitting of the welt. This results in giving the Welt band the same elasticity as is possessed by the ribbed portion of'the tube, and also-prevents any crowding of the tube at the region of the welt which would otherwise occur.

Having thus described my invention, I claim 1. In a rib knitter, a needle cylinder provided with grooves for the web holders; a fulcrtm ing projection Within each groove; a series of web holders with notches engaging, said projections and fulcrumed thereon; and coordinate cam surfaces acting continuously upon the backs of the Web holders one above and the other below the fulcrum by the combined act-ion of which the web holders are held 5 1 V inter evided with grooves the web holder-g; a tuicruming surface within said groove; :1 series of web holders i'ulerumed thereon; coordinate earn sur'aces aeting upon the backs of the web holders, one above and the other below the fulcrum, by the combined act-ion of which the web holders are positively operated as oi the tirst (rt-ass; and an opening in the upper eam in protected by a pivoted gate aiiord' H ity for the removal of any wet,- holder i'roiu its 3. in a. rib knittn' nai /hint, the e nation of a dial plate ham draw emu and 1110:2118 for re cam to render the cliai llQQClitiH inaetn ing the formation of the welt e durthe cylinder needles; a cam cylinder provided with a stitch earn and, mitornatieally operated means for operating the stitch cam to produce loose transfer courses upon the cylinder needles; and independent automatically operated means for operating the stitch cam to produce loose Welt courses.

4. In a rib knit machine, the combination of a cam o inder provided with a stitch cann and antennatiealiy onerated means for operating the titeh cam to pro duee i n'ansfer courts; a separate and distir ztoinatieally operated means for operatn said can: to produce loose weltamuse.

Witnesses:

JAMES H. BELL,- E. L.'FULLERTOI-I.

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