US417382A - Charles f - Google Patents

Description

no Model.) I

' C. BOARR.

. CIRCULAR KNITTING MACHINE. No. 417,382. Patented Dec. 17, 1889.

, UNITED STATES PATENT OFFICE.

CHARLES F. CARE, OF LACONIA, NEW HAMPSHIRE, ASSIGNOR TO WVARREN D. I'IUSE, OF SAME PLACE.

CIRCULAR-KNITTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 417,382, dated December 17, 1889. Application filed July 5, 1889. Serial No. 316,509. (No model.)

To all whom it may concern:

Be it known that I, CHARLES F. CARR, of Laconia, county of Belknap, State of New Hampshire, have invented an Improvement in Circular-Knitting Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to knitting-machines of that class employing cylinder-needles and dial-needles in the production of circular ribbed fabrics. In the class ofmachine referred to the dial-plate carrying the dial-nee I 'dles, which are moved in a horizontal path or plane, is maintained in correct working position with relation to the cylinder carrying the vertical needles, so that the dial-needles, when .moved outward, will pass between the cylin- 2o der-needles without clashing-that is, without coming in contact with the said needles by means of a dog or projection on the under side of the dial-plate striking against a dog or projection on the cylinder or bed-plate.

- Prior to my invention the dogs or projections referred to have been made with fiat faces, which come in contact witheach other, and between which the knitted. fabric is passed after leaving the needles- In practice ga n-t frequently happens that the strain upon the fabric due to the friction between the fabric and the fiat surfaces of the dogs referred to is sufficient to tear the said fabric.

My invention has for its object to reduce the friction between the fabric and the dogs or projections referred to, and thereby obvi ate tearing of the said fabric, and I accomplish my object by providing an anti-friction stop consisting of dogs or projections, each provided with a roller, between which the fabric is passed. As the fabric is fed between the rollers the friction is substantially nothing, thereby relieving the fabric from strain at that point.

My invention therefore consists, essentially, of the combination, in a circular-knitting machine, with the dial-plate and the cylinder or bed-plate, of an anti-friction stop consisting of rollers adapted to abut against each other, substantially as will be described.

Fig re 1 is a transverse vertical section of a sufficient portion of a knitting-machineembodying my invention to enable it to be understood, the section being supposed to be taken on the irregular line asasof Fig. 2. Fig. 2 is an under side view of the cylinder and dial-plate shown in Fig. 1. elevation of one of the dogs shown in Fig. 2 as secured to the dial-plate, and Fig. 4 an end elevation of one of the dogs-shown in Fig. 2 as attached to the bed-plate.

The bed-plate a, the cylinder 0, provided with the usual vertically-moving needles, (not shown,) the cam-ring g, having the usual cams to operate said cylinder-needles, and the dialplate (1, provided with the usual horizontallymoving needles, (not shown,) and the center bolt 1), are and may be of any usual or wellknown construction such as now commonly employed on knitting-machines for producing circular work.

The dial-plate d has secured to its under side, as by bolts or screws Ct, one or more dogs F, (herein shown as an angle-iron,) and the bed-plate a has secured to its under side, as by bolts or screws 17, similar dogs 6, made as an angle-iron, the said dogs being rigidly secured to the said dial and bed plates, so that one dog, as e, will lie in the path of movement of the other dog, as F.

In order to reduce to a minimum the friction between the dogs 6 F, the said dogs have pivotally mounted on them rollers or Wheels h h, between which the knitted fabric passes as it is fed down from the needles. The rollers or wheels h h are pivoted to .the ends of Fig. 3 is an end the dogs, so that theperipheries of the said fabric as it is fed between the dog's would be subjected to a very considerable strain, which in the present instance is entirely obviated or relieved from the fabric by means of the rollers h h.

I have herein shown two sets of frictionrollers h h arranged on diametrically-opp0- site sides of the machine; but I do not desire to limit myself to the use of two sets of rollers, as one or more sets may be used, according to the size of the machine.

I claim- In h circulardmitting machine, the combination, with the dial-plate and the cylinder or bed-plate, a dog F, firmly secured to the said

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