US416421A - Tufting attachment for knitting-machines - Google Patents

Description

(No Model.) 7 Sheath-Sheet "J. D. PARTELLO & J. P. JACKSON. TUFTING ATTACHMENT FOR KNITTING MAGHINES.

No. 416,421. Patented Dec. 3,-1889.

WITNESSES: lA/l/E/VTOR Q Z 0.52% M I BY% t rm/ME &

N. PETERS. Pmw-uuw h". \Vuhi c.

(No Model.) 7 Sheets-Sheet 2.

J. D. PARTELLO & J. P. JACKSON. TUFTING ATTACHMENT FOR KNITTING MACHINES.

No. 416,421. 4 Patented Dec. 3, 1889.

WITNESSES. ,0 INII/EIVTOI? W y '6 N. PETERS. Flwlu-Ulhngmphur. Washington D. c

(No Model) 7 SheetsSheet 3.

.J. D. PARTELLO & J. F. JACKSON. TUFTING ATTACHMENT FOR KNITTING MACHINES.

No. 416,421. Patented Dec. 3, 1889.

r I 1 K 44 .33 n, V n

i 5 M T X: ,LW

f QX WITNESSES. llVVE/VTOR:

(No Model.) 7 Sheets-$heet 4. J. D.' PARTELLO 8v J. F. JACKSON. TUFTING ATTACHMENT FOR KNITTING MACHINES.

No. 416,421. Patented Dec. 3, 1889.

WITNESSES:

ATTORNEYS.

N PETERS. Pnamum nek Wazhinginn, u. c.

- (No Model.) l 7 Sheets-Sheet ,6.

J. D. PARTELLO & J. P. JACKSON. TUFTING ATTACHMENT TOR KNITTING MAOHINES.

No. 416,421. Patented Dec. 3, 188 9.

A TTOH/VEV v 7 Sheets-Sheet 7. J. D. PARTELLO 81; J. F. JACKSON. TUFTING ATTACHMENT FOR KNITTING MACHINES.

'(No Model.)

No. 416,421. Patented Dec. 3, 1889.

ll l ll .A, awp

o. L 8 n N H W A TTORNEYS.

UNITED STATES PATENT OFFICE.

JOSEPH D. PARTELLO AND JOHN F. JACKSON, OF ROCHESTER, MICHIGAN.

TUFTING ATTACHMENT FOR KNITTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 416,421, dated December 3, 1889.

Application filed June 4, 1889. Serial No. 813,069. (No model.)

To all whom it may concern:

Be it known that we, JOSEPH D. PARTELLO and JOHN F. JACKSON, of Rochester, in the county of Oakland and State of Michigan, have invented a new and Improved Tufting Attachment for Knitting-Machines, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of our tufting attachment shown applied to a common circular-knitting machine, only such parts of the latter being shown as are necessary to fully illustrate our invention. Fig. 2'is a broken plan View of the same. Fig. 3 is a sectional elevation on line so 00 of Fig. 1, showing a presser-foot for confining the fabric, and showing a modification of the lower edge of the cylinder L from that shown in Figs. 1 and 6,

the guide-projections B being omitted in those latter figures. Fig. 4 is a'sectional plan view of Fig. 3. Fig. 5 is a view of the upper and lower cams for operating the tufting and knitting needles, respectively. Fig. 6 is a side elevation of the main portion of the machine, showing modified means for throwing the upper cam out of action. Fig. 7 is a de tail sectional view showing the relative posi tions of the needles, and Fig. 8 is a view illustrating the formation of the tufts.

By our invention a tufting-yarn is knitted in with the stitches of the ordinary knitted fabric and carried to the inside surface of the fabric and either cut or left in the form of loops.

The needle-cylinder A, needles B, cam-cylinder O, and driving-gears D E are all of the usual construction, except that the cam-cylinder C is formed with the side projections a a. In these side projections are held loosely the columns F F, connected bynu'ts and lugs to the upper cam-cylinder G, so that this cylder willturn with the cam-cylinder C.

II is a short vertical shaft, which, by means of the collar Iand spider J, supports the said upper cam-cylinder G and columns F, andsaid shaft H is held centrally above the knitting-machine by the bent arm K, supported by the post K, as shown clearly in Fig. 1. The spider J turns freely upon the central shaft H, and may be adjusted up or down by means of the collar 1, which is held by a set screw I for that purpose.

\Vithin the cam-cylinder G is held the cylinder L, fixed by a set-screw S to the lower end of the vertical shaft H. This cylinder L has grooves M formed in its outer surface to form needle-slots, in which th e tufting-needles N N are held. These slots at the lower edge of the cam-cylinder G reach entirely through the cylinder, as shown at m, and form guides for the tufting-needles and prevent them from lateral deflection when acted upon by the cam R, which is held above the projections R, which serve also to prevent lateral deflection of the tufting-needles, guiding them below the cam R.

The tufting-needles N are each formed with a hook I) and knife I) at the lower end, and with the projection 12 and hook b at the upper end, and are given an up-and-down and inward motion, 'as indicated in Figs. 3 and 7. The vertical movement of these needles is produced by the cams O P Q, (shown in Fig. 5,) secured upon the inner surface of the cylinder G over the irregular ledge cl, formed on said cylinder, so that a cam-groove d is formed to receive the projections 12 of the tuftingneedles N, as indicated in Figs. 3 and 7.

The inward movement of the needles N is produced by the adjustable curved plate R, above referred to, attached to the cam-cylinder G, the grooves or slots on through the cylinder forming a clearance for the said inward movement of the needles. The needles are forced back to vertical position by the springs f. (Shown clearly in Figs. 3 and 7.)

S T are bobbins held upon spindles attached to the plate U, held upon the columns F at the top of the cylinders, as shown clearly in Fig. 1, and above the bobbins are held the guides S'T. On bobbin S is placed the yarn s, which passes up through the guide S, thence down to the guide-orifice 'i in the lower guide V, thence to the needles B, and is knit in the usual manner into a common fabric.

Upon the bobbin T is placed the tuftingyarn m, which passes up through the guidearm T, thence through the orifice '2' in the guide V, thence through the orifice w in the guide \V, and thence to the needles l5 beneath 5 the latches. Between each two of the common stitches formed by the needles l3 and remaining on said needles a needle Ndescends and draws the yarn w inward, the latter being retained on the hooks b of the needles N until the yarn is knit in the main part of the fabric by the downward move ment of the needles 13, which movement dis charges the old stitch formed of yarn s and the tufting-yarn at the same time, thereby I 5 forming a loop, as shown at Z, Fig. 8, and, if desired, the said loop may be cut to form tufts Z, also shown in Fig. 8. The cutting of the loops is effected by causing the needles N to descend as low as possible, which is done by adjusting the cam P to its lowermost position, as shown in Fig. 5. By lifting the cam P so its point stands on a level with the lower edges of the cams O Q the needles N will not cut the yarn it, but will form loops Z. The cam 1 may be adjusted by the thumb-screw p, passing through the fixed block 1') and engaging the stud p attached to the cam and projecting through the slot 1) in the ring G, as shown in Fig. 1, or it may be adjusted by a lever 11*, (shown in Fig. 6,) the same being fulcrumed at 12 connected to the cam by the screw 19', passing through slot 19 and provided at the free end with a small pin orstud p to enter small orifice in the cylinder G, for holding the lever and cam in the desired position. The outside guide V is set in position on the ring V and made the proper length to supply the needles B with yarn, while the guide \V is fastened to a lug W, (see Fig. 4,) and made short enough to pass under and inside of the guide V when the motion is reversed. The guide \V is so proportioned that the yarn is laid along the needles B beneath the latches, and when the needles I) are drawn down by cams B (see Fig. 5) the tufting-yarn is cast off with the previous loops and the new loops are formed of the yarn under the hooks of the needles B.

The tufting-yarn is to be carried in advance of the knitting-yarn, in whichever way the machine is turned, and to effect this end the gear I) is formed on its upper surface with the lug or projection so arranged as to project through the slot 0 in the ring V and carry the yarn-guide \V. Said lug or projection and said slot are so arranged as to allow the lug \V to be a certain distance in advance of the yarn-guide V, carried by the ring V ,and said lug transmits motion to the ring V, the slot serving to allow the gear D a back motion equal to the length of the slot, thereby allowing the yarn-guide 7, supported by the gear D, to be in advance of the yarn- 6 5 guide V, supported by the ring V, in whichever direction they are turned.

X, Figs. 3 and 6, represents a presser-foot,

the tension of which is secured by the adjustment. of the binding-screw X. The said presser-foot is bent as shown in Fig. 3-that is, its lower end reaches inward to the edge of the cylinder A and its upper end stands outward from the cylinder G, so that the presser-foot fulcrums on the said cylinder G below the screw X, and when this screw is turned it forces the lower end of the presserfoot outward, and when the said screw is turned out the lower end of the foot is permitted to swing inward, so that it exerts less pressure on the fabric, and by means of the slot 00 the presser-foot may be adjusted vertically. The presser-foot is kept from swinging by means of the pin 41; in the slot or, as shown clearly in Fig. 6. The object of the presser-foot is to retain the fabric and prevent it from being pulled by either set of needles.

In the cylinder L is formed the circumferential groove n, in which is placed the spring-band n to catch the beveled hooks b at the upper ends of the needles N, and retain the needles in elevated position when they are lifted out of action, as in knitting the heel and toe of a stocking.

The bent arm K is attached to the post K by a stud and socket, and by preference held by a clamp'screw It, so that by sliding shaft 11 up through the end of the arm K the tufting attachment can be swung to one side of the knitting-machine in the socket of the post K. The nut K and jamb -nut K (shown in Fig. l.) serve to adjust the height of the tuftin g mechanism.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. The combination, with the needle-cylinder and cam-cylinder and the knitting-necdles of a knitting-machine, of an upper needle-cylinder and cam-cylinder and upper no needles, cams in the upper cam-cylinder for imparting vertical movement to the upper needles, and a cam for imparting a swinging movement to the said upper needles, substantially as described.

2. The shaft H, held by the arm K, in combination with the cylinder L, needles N,. cam-cylinder G, spider J, columns F, and cylinder C, of the knitting-1nachine, substantially as described.

The combination, with the cylinder L and needles N held thereby, of the cam-cylinder G and plate R, for forcing the said needles inward, substantially as described. V

4. The needle N, formed with the hook Z), knife 11, and projections 12 (2 substantially as and for the'purposes set forth.

5. The upper cylinders G L and upper needles N, and the lower needle and cam-cylinders and knitting-needles, in combination with the presser-foot N and operating-screw, substantially as and for the purposes set forth.

6. The combination, with the upper cylin- ICC ders G L and the upper needles N, of the springs f, arranged to press against the needles, substantially as described.

7. The combination, with the upper cylinders G L and needles N, of the springs f, arranged to press against the needles, and the cam R, arranged to move the said needles inward, substantially as described.

8. The ring- V, slotted at c and having the guide V, in combination with the gear or IO ring D, having stud W projecting through the slot 0 and provided with the guide W, substantially as described.

JOSEPH D. PARTELLO. JOHN F. JACKSON. Y'Vitnesses:

H. J. TAYLOR, R. IMMIoK.

Images