US352399A - Geoege davidson and william - Google Patents

Description

(No Model.)

I G. DAVIDSON 8E W. W. CLAY.

NEEDLE CYLINDER FOR CIRCULAR KNITTING MAGHINBS. .No. 352,399. v Patented Nov. 9, 1886.

Wmses. fnyervfiors NITE AT PATENT Fries.

NEEDLE-CYLINDER FOR CIRCULAR-KNITTING MACHINES.

SPECIFICATION forming part of Letters Patent No. 352,399, dated November 9, 1886.

Application filed April 22, 1886. Serial No. 199,808. (No model.)

To all whom it may concern.-

Be it known that we, GEORGE DAVIDSON, of the town of Paris, in the county of Brant, in the Province of Ontario, Canada, knitter, and WILLIAM WILLIAMS CLAY, of the same place, manufacturer, have jointly invented certain new and useful Improvements in N eedle-Cylinders for Circular Knitting Machines, of which the following is a specification.

The object of the invention is to so arrange the needles in the needle-ring that each needle may be independently removed and replaced without disturbing any of the other needles in the needle-ring, and which ring is so connected to the cylinder-arms that it may be readily removed and replaced by another needle-ring of a different diameter; and it consists, essentially, of a peculiarly-formed needle-carrier made in sections and having vertical grooves cut in it to receive the needles, which have peculiarly-shaped shanks to fit into the said grooves, each plate being independently secured by ascrew-bolt passing through the holding-plate, the needle-carrier, and screwed into the needle-ring, which is detachably connected to the cylinder-arms,substantial] y in the manner as hereinafter more particularly explained.

Figure 1 is a perspective view, partially in section,of ourimproved device. Fig. 2 is a perspective independent view of the cylinder-arms and hub. Fig. 3 is an enlarged detail of a portion of the needle-carrier in which one needle is set. Fig. 4 is a detail of the needle.

In the drawings, A represents the four cylinder-arms, which are connected to the machine in the ordinary manner. Each of. these arms has a slot, a, through which the screws B pass in order to enter the screwed holes in the flange of the needle-ring C. I

- By forming the slots a in the arms A it will be noticed that we can readily remove the needle-ring G and replace it with one of a different diameter; but as the screws B might not secure the ring 0 with sufficient rigidity, we place on the arms A a series of holding-pins, b, which enter corresponding holes made in the flange of the needle-ring O.

D is a needle-carrier, made, as indicatedin Fig. 1, in sections, so that it can be readily removed and replaced when necessary. On the inside of the needle-carrier D we form a projection or wide rib, d, to fit into a recess made f of the needles, each of which shanks is made a snug fit of its respective groove, all of which are exactly the same size and shape, so that the needles are interchangeable. The end of the-shank f is bent, as at 9, so that when the shank is titted into its groove e its bent end y will fit in to a notch, h, made in the bottom side of a shoulder, t, made in the outside of the carrier, d, at the base of the slots. In fitting each needle into its groove the end g is first slipped into its notch h. The shank f is then pressed into its notch,and the beveled shoulder j, formed on the shank, butts against the top edge of the needle-carrierD, and the needle is thus rigidly held from moving in either vertical direction. When the needles are placed in position, the

holding-plates E are put on separately, and are secured in position by the screw-bolts F,which pass through holes in the plate E and carrier D, and are screwed into the needle-ring C. When thus screwed in, the plates E hold the needles rigidly in position.

From this description it will be seen that by merely removing one of the plates E any single needle can be removed and replaced by another Without disturbing any of the other needles in the needle-ring.

It will be noticed on reference to Fig. 1 that a groove is cut on the inner face of the holding-plates E, to receive the shoulderi when the said plate is screwed into position.

What we claim as our invention is- 1. The cylinder-arms A, having the slots a made in them, in combination with the detachable needle-ring O, secured in position by the I screws B and holding-pins b, substantially as and for the purpose specified.

2. The cylinder-arms A, needles, needle-carrier D, formed with wide rib cl and grooves e, to receive the shanks f of said needles, and

the needle-ring G,secured to the cylinder-arms and having a groove formed on its outside to receive the rib d, combined with the detachable holding-plates E and means for holding said plates in position, substantially as and for the purpose specified.

3. The ring 0, the needles, the needle-carrier D,1nadein sections and having vertical grooves e formed in it, and aprojecting shoulder or rib,

5, made near its base, in combination with the f, and a notch, h, to receive the end g, subslanl0 holdingplates E,secured by the screw-bolts F, tially as and for the purpose specified. and having grooves cut on their inner side to Paris, April 16, 1886. zficelve the shouider z, substantlally asand for GEORGE DAVIDSON e purpose speclfied. W W CLAY 4. A knitting machine needle having a shank, f, with a. bent end, 9, and a. beveled In presence of shoulder; j, in combination with a needle-car- WILLIAM BAIN, rier, D, having a slot, '6, to receive the shank 7 WILLIAM J. TURNBULL.

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