US871095A - Needle-bed for straight-frame and circular-knitting machines. - Google Patents

Description

L v No. 871,095.

PATENTED NOV. 12, 1907.

- H. A. KLEMM. NEEDLE BED I'OR STRAIGHT FRAME AND CIRCULAR KNITTING MACHINES.

APPLICATION FILED AUG. 29, 1907.

I N M 5 2 9 In ventor':

J9. Mmvm Atty PATENTED NOV. '12, 1907.

H. A. KLEMM.

NEEDLE BED FOR STRAIGHT FRAME AND CIRCULAR KNITTING MACHINES.

APPLICATION IILBD AUG. 29, 1907.

2 SHEETSSHEE.T 2.

Inventor:

' FIG.5.'

FIGJ.

, UNITED STAEEEIENT OFFICE.

HERMANN A. KLEMM, OF NEW YORK, N. Y.,'ASSIGNOR OF ONE-HALF TO JAMES D. LEYS, OF YONKERS, NEW YORK.

NEEDLE-BED FOR STRAIGHT-FRAME AND CIRCULAR-KNITTING MACHINES.

Specification of Letters Patent.

Patented Nov. 12, 1907.

Continuation of application Serial No. 334,849, filed September 171906. This application filed August 29.1907. Serial No. 390.625.

To all whom it may concern:

Be it known that I, HERMANN A. KLEMM, a citizen of the United States of America, residing in the borough of Bronx, city and State of New York, have invented certain Improvements in Needle-Beds for Straight- Frame and Circular-Knitting Machines, of which the following is a specilication.

The purpose of this invention is to provide a needle bed for independently reciprocating needles-either spring or latch-4n which the grooves may be closer together than has heretofore been practicable. The number of needle grooves has been limited by the thickness of walls required to resist lateral strains imposed by the operating cams upon the butt ends oi the needles. According to this invention long and short grooves, to receive long and short needles, are arranged in alternation and wall strengthening lilling pieces are inserted over the needles in the front parts of the long grooves opposite those parts of the short grooves traverse'd by the butts oi the short needles.

In the drawing, Figure 1 represents a plan view of a portion of a needle bed with some of the needles therein, adapted for use in connection with the straight frame knitting machine and adapted for the production of so-ealled Swiss-rib underwear; Fig. 2 is a view similar to Fig. 1, showing a dial needle bed adapted for use in connection with a circular knitting machine; Figs. 3

and 4 are sectional views taken respectively on the lines A, B and O, D, of Fig. 1; Figs. 5, 6 and 7 are similar ,views showing the needles, long and short, equally spaced, the latter figure being a section on line E, F, of Fig. 5.

a designates a needle bed which may be cylindrical, straight or circular dial in form, as required, and b, c designate grooves therein for the reception of the neodles d and e respectively.

In the particular embodiment of this invention which Figs. 1 to 4 of the drawing illustrates, the needle grooves are arranged in pairs each comprising a short groove 0 and a long groove b. The division wall f between grooves b and c of a pair is relatively thin or narrow, While the walls 9 between the pairs of grooves are relatively, thick or wide.

To strengthen the thin dividing walls of the needle grooves to resist lateral strains imposed by the operating cams upon the butt-end portions of the short needles, lilling pieces h are iitted between the walls of the grooves 0 over the front portions of the long needles. The filling pieces are preferably approximately the length-of the short grooves as shown in Fig. 3, but however that may be, they should be opposite those parts of the short grooves traversed by the butts of the short needles.

The lilling pieces h, are so litted as to provide a space between them and the lower surface of the needle grooves c, to admit of the free and ready insertion or withdrawal of the long needles from the rear, and in order that both the long and short needles shall be socurely held against displacement, during the operation of knitting, I may provide keepers 11,111 the form oi bars adapted to rest over and upon the needle shanks. These keepers may be arranged to lit in guides j formed at intervals across the upper face of the needle bed, or other convenient means may be employed to keep them in position, such as may suggest themselves to those skilled in the art.

II the alternating long and short grooves were equally spaced the filling pieces would serve to reinforce the walls and it is therefore l'easible to make them thinner than has heretofore been deemed practicable. Such a construction is shown in Figs. 5, G and 7, the latter being on an enlarged scale.

I claim:

1. A needle bed having in alternation long and short needle grooves and filling pieces in the long grooves opposite the parts of the short grooves traversed by the butts of the short needles.

'2. A needle bed for knitting machines having long and short needle grooves for the reception of long and short needles, said needle grooves being arranged in sets or pairs comprising one long and one short groove, a narrow dividing wall arranged on the bed for separating each long and short needle in each set or pair of needles, and a wider wall separating the needles comprised in each set or pair, and filling pieces adapted to fit in between the narrow and strengl licned.

In testimony whereof,

name.

I have hereunto subscribed my IIERMANN A. KLEMM.

Witnesses L. l BROWNING, E. 1 Wrens.

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