US1447489A - Knitting machine - Google Patents

Description

Patented Mar. 6, 1923."`

trainee ARTHUR SELKIRK, F QRILLIA, ONTARIO, CANADA.

KNITTING MACHINE.

Application filed March 10, 1921, Serial No. 451,390. Renewed January 15, 1923.

To all whom t may concern.'

Be it known that I, ARTHUR Snnxmx, of the town of Orillia, in the county of Simcoe` Province of Ontario, Canada, a subject ot the King `of Great Britain, have invented certain new and useful improvements in vKnitting Machines, of which the following isa specification. v

This invention relates to knitting machines of the cylinder type, and my object is to devise a machine on which hose of any desired number of stitches in circumference may be knitted without change of cylinders.

vI attain my object by means of the constructions hereinafter Adescribed and illustrated in the accompanying drawings in which l Fig. l is a side elevation, partly broken away and partly in section of part of a 20, knitting machine provided with my improvements;

Fig. 2 a plan view of part of the cylinder.

In the drawings like numerals of reference indicate corresponding parts in the diii'erent figures.

l is a knitting machine cylinder and 2 the cam shell. rlhe cylinder is provided with twice the usual number of needle slots 3 spaced one half the distance apart usual in a cylinder of a given diameter and used for a given iineness of work. These` slots, however, do not extend to the rim of the cylinder, which is reduced in, external radius ad jacent its upper end by an amount substantially suiiicient to substantially eliminate the slots. ln a cylinder of the size illustrated, there will be a total of 120 slots. In this case hosiery with 60 stitches to its circumference will be the maximum size ordinarily knitted. When hose of the full 60 stitches is being knit, alternate slots 3 will each be filled with a filler blank 5, which extends up adjacent the upper rim of the cylinder and is provided with a radially extending top 6. The filler tops preferably extend outwardly a distance at least equal to the depth of the slots. The lower parts of these iiller blanks are completely contained in the slots and therefore do not interfere in any way with the cams of the cam shell. The filler blanks are held in position by the usual elastic ring 7, which retains the needles in their slots.

If now the machine is to be set to knit hose of smaller diameter, say 40 stitches, forty needles are used equally spaced and the intermediate slots are fitted with filler blanks. Knitting is then proceeded with in the ordinary way, when it will be found that perfectly and evenly knitted work is turned out, the extra spacing where the needles have been omitted not producing any noticeable eifect on the finished work.

Various diameters of hose can be produced by using needles at suitable intervals and filling intermediate slots with blanks.

lt is evident that by using a total number of slots other than 120 that hose of almost any number of stitches in diameter may be produced using but two or three cylinders at most.

By the construction described, I satisfactorily attain the object of my invention as set out in the preamble to this specification.

What I claim as my invention is 1. A knitting machine cylinder provided with a series of slots equal in number to twice the number or" stitches in the circumference of the maximum sized work for which the cylinder is adapted and spaced half the usual distance apart; needles adapted to it in any of said slots; and a series of filler blanks adapted to it in any of the slots, said filler blanks extending substantially to the upper rim of the cylinder to form yarn supports, the cylinder ad]acent the rim being reduced in diameter suiiiciently to substantially eliminate the slots.

2. A knitting machine cylinder provided with a series of slots equal in number to twice the number of stitches in the circum ference of the maximum sized work for which the cylinder is adapted and spaced half the usual distance apart; needles adapted to fit in any of said slots; and a series of filler blanks having radially directed tops at or about the level of the upper rim of the cylinder extending outwardly a distance `nate the slots.

at least equal to the depth of the slots, the the upper ends of said ller blanks serving 10 cylinder adjacent the rim being reduced n as'yarn supports between the needles. diameter sueently to substantially elm- 'Signed at town of Orlla. this 25th day of February 1921.

ARTHUR SELKIRK.

Witnesses?. v

WILFRED G. LAWRENCE' WILLIAM H. HUDSON.

3. A knitting machine cylinder provided With a series of slots which do not extend to the rim of the cylinder; needles adapted to' fit in any of said slots; and a series of filler blanks also adapted to t n any ofthe slots,

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