US105454A - Improvement in knitting-machines - Google Patents

Description

J. HOLLEN.

KNITTINGMAGHINB.

Patented July 19, 1870.

.tIlBIIl I with JOSEPH. HOLLEN, or nos Ton a, PENNSYLVANIA.

Letters Patent N0. 105,454,dctell'Juiy 1c, 1870.

IMPROVEMENT IN KNITTING-MACHINES.

The Schedule referred to in these Letters Patent and making part of the same I, JOSEPH HOLLEN,l0fQFoSt0rlH/, in the county of Blair and State of Pennsylvania-have invented certain Improvements in Rotary Knitting-Machines, of which the following is a specification.

Nature 'a-nzZObjects of the Iiwent'ion.

My improvements relate to'that class of rotary knitting-machines i'nwhich the needles are rigidly fixedparallel with each other and with the axis of the rotary cylinder around which they are secured; and

The first part of my invention relates to the construction of the said needles. Each needle is made with a groove along in one side-from the outer end of the needle backward, so thatthc pointed arm of the-stitchlifter will the more certainly enter 'the' stitch on the needle; and the same side beveled to the outer edge.

of the hooked end of the needle, so as to cause the said arm of the lifter, on its return forward with the stitch, to slide down with more certainty on the same side of theneedle; and also with a shoulder, ofiset, or

projection, on its under-side edge, so as to'more certainly keep the stitch fromfbeing drawn backward or inward too far, oat-he shank of the needle, by the backward or inward movement of .the said lifter.

The second part/of myinve'ntion relates to the construction of the stitch-lifter with a spring tongue, which will allow the stitch whichis'b'eing entered by the arm of the lifter to press the spring tongue upward and slip along between it and thearm of the lifter and t0 the bend or angle ofthe latter, as the said lifter passes- Onward far enough to let the eye of the carrier pass across'between it and the point of the needle, and so, also, that, when the lifter returns-with the stitch and passes downward alongside oi the hooked end of the needle, the-spring tonguewill rise and let the arm of the stitch-lifter withdraw from the said stitch, and immediately afterward close down again upon a the arm of the lifter, which then enters the stitch 0n the next'needle the object of this part of my invention bcing-to dispense with the old notch heretofore used in the lifter, and afl'ord a more rcliable'a-nd etL fective device forthe same purpose. I

The tl. 'rdpart of my invent-ion relates to the construction of the lever which gives the necessary vi bratory motions to the thread-carrier, and consists in making its rear end in theforin of a rhombus or diemond-sha'ped,'so 'as' to produce two opposite 'cams, whic'hwill causethe said end of the lever to be moved to the right and left.alternately'bysimple studs or pins fixed in the reversible driving-cylinder of the machine, and thus produce the required vibratory motions in the thread-carrier, in a more simple and accurate manner.

Description of the Acconq'rany'ingDrawings. Figure 1 is aside view of one of the needles.

Figure 2 is a View of the upper edge of the same.

Figure 3 is a sectional side elevation, of theJuppcr part of 'the machine, having the front side of the frame thereof removed, for the purpose of showing my in-:

vention embodied.

' Figure 4 is a detached 'portion of some of the devices shownin fig. 3, but in diiferent relative positions.

General Description.

The needles A' are each made out of a flat strip of metal, and fixed edgewise or radially around on their carrying cylinder 13., parallel with each other and with the axis of the said cylinder.

The hooked end a is sharpened around its outer edge or beveled onione side, so as to better allow the stitch-lifter O to pass downward on that side as it moves forward on its return with the-lifted stitch; and in the same side the shank of the needle has a V groove, 'a,-'which the pointed end of the arm dot the lifter G traverses, and thus is more certainly caused,

to enter the stitch on the needle as the said lifter is moved backward or inward for the purpose.

I On the inner edge of the needle there is an offset or shoulder, a, whichprevents theistitch' on the needle from being drawn back too far by the lifter O as the latter moves backward orinward to let the eye (1' of the thread-carrier D pass between it and'the point a of the needle-A. v r

' The stitch-lifter G has a pointed inwardprojecting arm, 0, in theiusual vmanner, but without the notch heretofore required to draw the stitch off of the necdle; and, instea d of said notc h,lit has acurved tongue,

0'', which is caused, by itsspringy arm 0', to press'suf- 'retlirns' forward, (sec fig. v4,) carrying the stitch held thereon (not shownin tlie figure) by the spring tongue I 0" until, in passing downwardin front ofthe needle, the stitch requires to be released by'the withdrawal of the arm 0. This release is permitted by the rising of the tongue 0, which is efi'ected by. means of a stud, e, on the driving-cylinder E, which elevates an arm,

- f, which is fixed to a shaft, f', an'd to which latter another arm, f, is fixed, and this latter arm is thereby caused to press downward upon the lifter O and the.

spring arm 0' of the tongue being fixed to the latter and pressed downward upon a stop, g, by the arm f" pressing downward upon the lifterO, the tongue 0" is raised sufliciently to let the arm 0' of the lifter C be freely withdrawn from .the stitch and the stud e now passing further around, lets the arm f return, and, consequently, the tongue 0" again closes down upon the arm 0, and the latter is ready to enter the stitch in the next succeeding needle.

The necessary vibratory motions are given to the thread-carrier D by giving to the usual vibrating lever H a diamond-shaped end, h, a plan view of which,

applied to the driving cylinder E, is shown in Figure 5. It will be seen that as the cylinderE rotates in either direction, the series of pins or studs e", arranged for the purpose, will move the head h right and left alternately, and, consequently, produce the vibratory motions required in the thread-carrier D with which it islconnected in the usual manner.

Claims.

I claim as my invention Witnesses:

J OHN- CAMPBELL, JAMES B. CAMPBELL.

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