US478673A - winlund - Google Patents

Description

(N0 Model J 3 Sheets-Sheet 1.

N. J, WINLUND.

KNITTING MACHINE.

N0. 47 73. Patented July 12,1892.

24 ,J w M ZYfl Invention S WQMM. azimv (No Model.) 3 Sheets Sheet 2.

N. J. WINLUND. KNITTING MACHINE.

No. 478,673. Patented July 12, 1892.

EM ll 1 l 5 o I 6 W nesses: Y

3 sheetssheet 3.

(No Model.)

.N. J. WINLUND.

KNITTING MACHINE.

m m w m ww L mu. wAsu u UNITED STATES PATENT OFFICE.

NICHOLAS J. IVINLUND, OF ROCKFORD, ILLINOIS, ASSIGNOR OF TWO-THIRDS TO EDWARD MCSHERRY AND HENRY WV. PRICE, OF SAME PLACE.

KNITTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 478,673, dated July 12, 1892.

Application filed May 18, 1891. Serial No. 393,224. (No model.)

To all whom, it ncay concern:

Be it known that I, NICHOLAS J. WINLUND,

a citizen of the United States, residing at Rockford, in the county of Winnebago and State of Illinois, have invented certain new and useful Improvements in Knitting-Ma chines, of which the following is a specification.

The object of this invention is to construct to a knitting-machine provided with a needlecylinder, knitting needles, operating cam, subjacks, and a pattern-wheel, located outside of the needle-cylinder, capable of a vertical movement and operating upon the subjacks, to hold the needles in or out of engagement with the cam.

The further object of this invention is to provide the subjacks with an extension which serves as a guide for the needle in its vertical movement during the process of knitting.

In the accompanying drawings, Figure 1 is a plan view of a knitting-machineembodying the features of my invention. Fig. 2 is an elevation showing the connection between the pattern-wheel and its controlling mechanism. Figs. 3, 4,and 5 are verticalsections ofaportion of the needle-cylinder, cam-cylinder, patternwheel, and the controlling device for the pattern wheel, showing the various positions which the needle, jack, and subjack occupy during the process of knitting.

This invention relates to a class of knittingmachines known as the automatic knittingmachines, in which the needles are thrown into and out of action by a pattern-wheel during the process of knitting. The needlecylinder 1 in this instance is of the usual construction, having its interior surface-provided with vertical grooves, within which the needles 2 move. inder extends an annular base 3, having its upper surface provided with radial grooves4 for the reception of subjacks 5. The needlecylinder is vertically slotted a portion of its length, and through these slots extend a projection 6, from a jack 7 which enters the groove 8 of. a cam-cylinder 9, located within the central opening of the needle-cylinder. To the lower end of the needle-operating cam- 5o cylinder is secured a gear-wheel 10, the teeth of which mesh withthe teeth of a gear-wheel From the lower end of the cyl- 11, to which a rotary or oscillatory movement is imparted from a prime mover.

Surrounding the needle-cylinder near its upper end is located a needle holding and releasing ring 12, which is provided with slots, so that when the ring is oscillated the slots will coincide with the needle-grooves of the cylinder and permit the removal of aneedle, and when oscillated the proper distance the grooves will coincide with the spaces between the grooves of the needle-cylinder, thereby holding the needles in their working position. This needle holding and releasing ring and the cam-cylinder form the subject-matter of Letters Patent granted to me April 28, 1891, Nos. 451,285 and 451,286, and are therefore not claimed in this specification.

The j lGkS 7 are located in the needlegrooves of the needle-cylinder and have a hook connection with the lower end of the needle, by reason of which the needle is moved vertically as thecam-cylinder 9 rotates or OS- cillates by reason of the projection 6 of the jack entering the cam-groove. The lower end of the jack is provided'with an extension 13, which, when the jack is in the position shown at Figs. 3 and 5, enters a notch 14, formed in the upturned end 15 of the sub jack 5. The subjacks are located in the ra- 8o dial grooves 4 ot' the annular base 3 and .moved toward and from the center of the needle-cylinder. When the subjack is in its innermost position, it will occupy the position shown at Figs. 1, 3, and i, and the upward extension 16 of the subjack holds the .jack in its engagement with the operating-cam groove of the cam-cylinder during the process of knitting. WVhen the subjack is withdrawn, the jack will be in its lowest position and its 0 extension 13 will enter the notch 14 of the subjack, and by reason of this engagement the lower end of the jack will be moved outward and the projection 6 of the jack will be disengaged from the cam-grooveot' the cam-cylinder 5 9, thereby holding the jack, and consequently the needle, out of Working-position. A disk 17 is located over the annular base and holds the subjacks in their grooves, but in such a manner as to permit of their radial sliding 103 movement. A pattern-wheel 18, in this instance of segmental form, is located outside of the annular base extending from the needle-cylinder. This pattern-wheel is provided with a series of ribs 19, which radiate from the centerof the needle-cylinder. In one face of each of these ribs is formed two vertical grooves 20, joined together by a diagonal groove 21, which forms an irregular pathway.

This pattern-wheel is so located that the outer end of the subjacks will lie in line with that face of the rib which is provided with the irregular groove, and a pin or stud 22, projecting from the end of each subjack, enters the groove of one of the ribs. This pattern-wheel is supported in such a manner as to be ca pable of a vertical bodily movement, and is held thus supported in this instance by three brackets 23, havinga connection with the annular base and having their free ends upturned, which pass through vertical guideways 24 in the outer circumference of the pattern-Wheel. It will be seen that as this pattern-wheel is moved vertically the pin of the subjack will travel the irregular groove formed in the face of the ribs of the patternwheel, and this irregular groove is of such form as'to force the subjacks radially inward when the pattern-wheel is moved upward, and when the pattern-wheel is moved downward the subjacks will be moved outward.

This movement of the subjacks will, by reason of their engagement with the jacks, cause the jacks to become inoperative or to be held in engagement with their operating-cam. In this instance I have provided each of the ribs with the same form of groove, which will move all of I the subjacks having a connection therewith simultaneously inward or outward, thereby throwing into or withdrawing from action all of the jacks having a connection with the subjacks, which are operated by the pattern- Wheel, and in this instance all needles except the fashioning-needles. It is necessary that this vertical movement of the pattern-wheel should be accomplished automatically, and for that purpose I have located a wheel 25 below the pattern-wheel to move in a vertical plane. The face of this wheel 25 is provided with an irregular groove or pathway 26, which receives a horizontal stud 27, projecting from a vertical arm 28, which has connection by means of a brace 29 with the pattern-wheel. The periphery of the wheel 25 is in notched or ratcheted form, and a dog 30, having a pivotal connection with the main supportingframe, carries a spring-actuated pawl 31,which engages the teeth of the wheel 25. This dog is operated by the movement of a rotating cam-wheel 32. As this cam-wheel is rotated it moves the dog on its pivot, which causes the pawl to engage the teeth of the wheel 20, imparting thereto an intermitting rotary movement, which is repeated at each revolution of the cam-wheel. When this wheel 25 is rotated a sufficient distance, the stud 27 will descend from the pathway having the greatest diameter to the pathway having the least diameter, which will cause a vertlcal movement to be imparted to the pattern-Wheel, and this vertical movement is repeated when the stud changes from one path to the other. It will be seen that by this construction of the knitting-machine all of the needles are under positive control either while they are in engagement with their cam-cylinders or disengaged therefrom.

I claim as my invention- 1. In a knitting-machine, the combination of a needle-cylinder, knitting-needles, jacks, subjacks, and an operat ing-cam, the sub acks being provided with an extension which forms a guide for the jacks and holds them in engagement with the cam during the process of knitting.

2. In a knitting-machine, the combination of a needle-cylinder, knitting-needles, an operating-cam, subjacks, and a pattern-wheel located outside of the needle-cylinder and capable of a vertical movement and operating upon the subjacks to hold the needles in or out of engagement with the cam.

3. In a knitting-machine, the combination of a needle-cylinder, a series of knitting-needles, a series of subjacks, and a pattern-wheel located outside of the needle-cylinder and capable of a vertical movement, and means for moving the pattern-wheel, each of the subjacks having an independent connection with the pattern-wheel.

4. In a knittinganachine, the combination of a needle-cylinder, needles located therein, an annular base extending from the cylinder, said base being provided with radial grooves, subjacks located in said grooves, and a top plate holding the subjacks in position.

NICHOLAS J. WINLUND.

Witnesses:

A.-O. BEHEL, E. BEHEL.

Images