US469128A - Burring and napping attachment for knitting-machines - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

H. EDDISHAW. BURRING AND NAPPING ATTAGHMENT FOR KNITTING MACHINES.

No; 469,128. Patented Feb. 16, 1892.

(No Mcdel.) 3 Sheets-Sheet 2.

H. EDDISHAW. BURRING AND NAPPING ATTACHMENT FOR. KNITTING MACHINES.

No. 469,128. Patented Feb. 16, 1892.

W'mwsm: z; nv I -27 y ai zi zti ziw (No Model.) 3 Sheets-Sheet 3-.

H. BDDISHAW. BURRING AND NAPPING ATTACHMENT FOR. KNITTING MACHINES. No. 469,128. Patented Feb. 16,v 1892. 7

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UNITED STATES HENRY EDDISHATV, OF ILION, NE XV YOR'K.

BUBRING AND NAPPING ATTACHMENT FOR KNITTING-MACHINES.

SPECIFICATION forming part'of Letters Patent No. 469,128, dated February 16, 1892.

Application filed January 20, 1891. Serial No. 378.452. (No model.)

To all whom it may concern:

Be it known that I, HENRY EDDIsHAW, a citizen of the United States, and a resident of Ilion, I-lerkimer county, New York, have invented certain Improvements in Burring and Napping Attachmentsfor Knitting-Machi nes, of which the following is a specification.

The object of 1n yinvention is to provide an ordinary circular-knitting machine with an attachment whereby the knitted fabric as it is produced will have its surface gigged or napped and the burrs and other foreign matter removed; and this object I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which-- Figure 1 is a side View of sufficient of aknitting-machine to illustratemy invention. Fig. 2 is an end View of the same. Fig. 3 is a diagram in sectional plan of my improved attachment. Figs. 4 and 5 are views illustrating a special form of attachment. Fig. 6 is a side View illustrating the application of my invention to a diiferent form of knitting-machine, and Fig. 7 is aview illustrating a modification.

In Figs. 1 and 2, A represents the outer annular frame of an ordinary circular-knitting machine using spring-bearded needles, B B representing two of the knitting-wheels of said machine and D the rotating shaft or spindle carrying the needle-cylinder, the web 00 as it s produced rising from the machine and passmg to suitable take-up mechanism above the same.

In order to provide for gigging or napping the surface of the knitted fabric as the latter rises from the machine and also to effect the cleaning of the fabric by the removal of burrs, knots, and other foreign matters, I employ a pair of strips or bands F, provided with teeth similar to those of card-clothing strips, which teeth have forwardlyprojecting points for acting upon the web of fabric as the latter turns and rises between the strips F F. Said strips are connected at each end to springs a, which are hung to arms b, adjustable laterally in heads cl at the upper ends of. standards f, carried by clamps g, which are secured to the table or bed on which the knitting-machine is mounted, the arms 11 being adjustable laterally in the heads cl and secured in position for adjustment by set-screws b, so as to vary the tension of the springs av and permit of the use of strips F of different lengths. The web or, rising from a circular machine, gradually changes its shape, so that it is flat when acted "upon by the take-up mechanism, and the strips F are under such tension that the teeth of the same will act with a proper degree of force upon the web without, interfering with the turning of the same with the cylinder of the machine, the strips yielding to accommodate themselves to the shape of the tube as it turns. By this means the cleaning and gigging or napping of the fabric is effected without necessitating the employment of special machinery for the purpose, and the gigging action is, moreover, in a direction transversely to the length of the web, which is preferable to a gigging action in which the teeth move longitudinally, or in the direction of the length of the web, as in special giggingmachines. The standards f are adjustable vertically in the clamps I), being secured in position after adj ustmentby setscrews f, so that the strips F maybe adjusted to a position more or less remote from the head of the machine, as circumstances may suggest.

One of the toothed springs F may, if desired, be dispensed with in some cases, and in other cases it may be preferable to impart movement to the toothed strip in a direction the reverse of the horizontal movement of the knitted web. A simple method of accomplishing this object is shown in Figs. 4 and 5, in which the toothed strip is represented in the form of a belt F, passing around grooved pulleys 7L, one of which is carried by the upper end of a shaft G, mounted in suitable bearings in the fixed frame of the machine and having a pulley 2 driven byabelt z" from a pulley j on the rotating shaft or spindle D of the cylinder. The other pulley 72. turns 011 a short shaft g, which is guided in a slotted bearing J and is acted upon by springs a,s0 as to impart the desired tension to the'belt and permit the necessary yielding of the same in the operation of the machine.

In Fig. 6 I have illustrated the application of my invention to acommon type of machine in which latch-needles are employed and in which the fabric is delivered downward from the cylinder instead of being delivered upward, as in the machine shown in Figs. 1 and 2, the only change in the construction of the machine rendered necessary by the application of my invention thereto being the driving of the take-up frame H by special gearing m m from the vertical counter-shaft K instead of the usual plan of hanging said frame to the cylinder of the machine.

In some cases a fixed stri p having teeth may be used, as shown, for instance, by dotted lines in Figs. 1 and 2, the strip in this case being mounted upon a block it, which is carried by the upper end of an arm 23, secured at its lower end to the push-back or other fixed part of the machine, or in other cases the arm may have a box 8, in which are springs a serving as a backing for the blocks n, as in Fig. 7.

Having thus described my invention, I claim and desire to secure by Letters Pat- 1. The combination of a knitting-machine with a strip provided with gigging-teeth having forwardly bent or projecting points, said 2. The combination of a circular-knitting machine with a strip provided with giggingteeth having forwardly bent or projecting points, said strip being mounted transversely to the longitudinal movement of the knitted web and so as to act upon said Web as itis delivered, and means for moving the strip, so as to cause the teeth to traverse in contact with the web of fabric in'a direction the re verse of the direction of rotation of said web, substantially as specified.

8. The combination of a knitting-machine Vitnesses:

E. B. SCHMIDT, WILLARD G. SKEEL.

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