US64046A - John f - Google Patents

Description

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KNOT INDICATOR FOR KNITTING MACHINES.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN F. STEWARD, of Plano, in the vcounty of Kendall, in the State ot Illinois, have invented a new and useful improvement in Knitting Machines, namely, a Knot Indicator, to indicate the approach of knots in the yarn while knitting, in order that the operator may knit carefully over them, or drawthem through the machine with the hand (if too large to knit over) lto prevent the liability ot' their entering the machine unnoticed and breaking the yarn, which will leave a hole in the fabric, or throw the Work out of the machine, thereby relieving the operator from the tedious necessity of watching for their approach, and thus facilitate knitting; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making apart of this specification, in which- Figure 1 is a side view; and

Figure 2 a front view. 'i

A is the bell, B the knot grasper, C knotl-grasper arm, DlhammenE, fig. 2, tint-coiled. spring, F F tensionV pads, G spiral spring, H thumbfscrew, I bobhin or spool, J yarn, K knot, L clasp, `standard. of bohbin stand, N pivot. l A The nature of my invention consists in attaching to knitting machines (to the Yhohhin .stand or otherwise) a device to signal the approach of knots for the purposes set forth above. I eonstruet my improvement as follows:

-To the standard M of the bobbin stand l attach the clasp L, and pass the pivot N, on the lower end ofthe .arm C, through ahole in the clasp. That portion of the pivot which projects through has provided in it a hole to receive one end of a flat-coiled spring, E, the other end being secured to the clasp, and at all times tends to keep the arm C in an upright position and against Ythe bell. To the top of the standard M, I' attach the bell A.

Also, to the upper end of the arm C, I attach the knot grasper B. Also, to the arm C, I attach the hammer D in such a position that it may come in contact with the bell A. The knot grasper B, I construct as shown in fig. 2, with one or more slots diiferinginsize to suit the different sizes of yarn; the'slots to be in width just suilicient to allow the yarn to pass freely through, yet close enough to arrest the passage of a knot or any enlargement of the yarn that would vrender itliahletto break in knitting. The upper end of the slot I enlarge sulhciently to allow the knot to pass, but closeit atthe top near enoug'hvto prevent the yarn from escaping.

The operation of my improvement is as follows: The yarn in passing to the machine from the spool after passing the tension pads 'F F, passes through the knot -grasper B to the machine, (not shown.) A knot, after passing the tension padsF F, catches in the knot grasper B, and as the knot proceeds it -draws the arm C forward and down (as shown by red lines in fig. 1*) until the knot draws up out of the narrow part of the knot grasper, which allows it to escape, when the arm C is thrown by the springE into its original position, (as shown by black lines in fig.` 1,) when the hammer I) strikes the bell, thus signalling the approach of the kn'ot.

What I claim as my invention, anddesire to secure by Letters Patent, is

The arm C, with the knot grasper B, hammer D, and the spring E, in combination with the bell A, constructed and operating as herein described.

JOHN F. STEWARD.

Witnesses:

JAMES D. HoLLl'sTnn, A. STEWARD.

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