US1033723A - Straight-knitting machine. - Google Patents

Description

K. NEBBL. STRAIGHT KNITTING MACHINE.

APPLICATION FILED AUG. 4, 1911 Patented July 23, 191? 4 SHEETS-SEEET 1.

INVENTcbR ATTORNEY K. NEBEL. STRAIGHT KNITITING MACHINE. APPLICATION IILED AUGA, 1911.

1,083,723. Patented July 23,1912

4 SHBETSSHEET 3.

WITNESSES ATTORNEY y K. NEBEL.

STRAIGHT KNITTING MACHINE.

APPLICATION FILED AUG.4, 1911.

1,033,723. Patented July 23, 1912.

4 SHEETS-SHEET 4.

IN VENTOR wmvsssss WI ATTORNEY ne STAT/ES PAT NT: om

KARL NEBEL, 0]? EW YORK, Y., ASSIGNOR T0 LOUIS HIRSCI-I, OF N. Y.

STRAIGHT-KNITTING MACHINE.

Patented July 23,1912.

Original application filed May 24, 1911, Serial No. 629,118. Divided and this application filed August 4,

Serial No. 642,234. g

To all whom it may concern:

Be it known that I, KARL NEBEL, a subject of the King of Saxony, but now residing at New York, in the county of New York and State of New York, have invented certain new 'and useful Improvements in Straight-Knitting Machines, of which the following is a specification.

My invention relates to a straight knitting machine for the .akingcomplete of a of the heel caps, the auxiliary presser-bar is operated to secure pressing of only the end needles of the series to knit the heel caps; the selvages of which subsequently will be attached by a looping operation to the beginning loops of the sides of the courses of the fabric for the foot. The middle or instep portion of the blank is not affected by the operation of the auxiliary Presser-bar, but during the knitting of the heel caps, the regular presser-bar is prevented from operating upon the needles for forming the instep, by affecting the motion of the needle-bar toward the regular presser so as to prevent the needles from contacting with it.

By the knitting of a stocking blank as above described, is effected thereby first, a marked saving in time and labor; second, the avoidance of unequal proportions of fabric of the knit parts of the blank; and third, a saving of waste and a more uniform knitting of the leg, foot and heel constituting the full fashioned stocking blank, for upon removing the blank from the machine, the only operations necessary to completethe stocking are first, the looping ,to-

' gether of the seams at the side'of the heel;

and second, then looping up of the back, sole and toe-seam, as usual. The n'ature and scope of my present invention will be more fully understood from the following description taken in connec d tion with the accompanying drawings forming a part hereof, in whichlgure 1, 13 a sectional elevational view' taining additions in mechanism thereto for fabricating the described product by a series operations, the said mechanism as applied to such a machine embodyingmain features of my present invention. Fig. -2, is a plan view of the auxiliary resser-bar and accessories thereof employed in such a knitting'machine. Fig. 3, is a fragmentary plan view of the auxiliary presser-bar, showing the cut away portion thereof and also showing the relation occupied by the same with respect to needles of such a knitting machine. Figs. 4 and 5, are respectively sectional views of the resser-bars, regular and auxiliary, sinkers and knock-over bits of the machine and also showing the relative of a straight or fiat knitting machine conpositions of the auxiliary presser-bars-zwith respect to closing beards of the knitting needles. Fig. 6, is a front elevational view 'n of a portion of a straight or flat knitting machine, showing particularly the mechanism to throw loops completely around nee dles after the heel-caps have beenfabricated' and loops thereof have been thrown oil? (ofthe needles of the machine, the said auxiliary presser-bar and its operating arm and the needle-bar and operating arms, the caln for controlling the same, being showii-..,in

Fig. 1. Figs. 7, 8 and 9, are detail views in" section and elevation, of respectively, means for moving the thread carrier completely around each of the knitting needles. Fig.

10, is a perspective view of a portion of a stocking blank, showing the leg and heelcaps; and Fig. 11, is a plan view of a p0r-- tion of a completed stocking blank, showing leg, foot and heel-caps, ready to be Q united or looped together at the ends of the same.

the side standards of the machine on which is mounted a bracket a to support the knock over bits I), sinkers b and regular Referring to the drawings, a, is one of presser-bar b and auxiliary presser-bars 6- but one of which has been shown in Fig.1.

0, is a supporting dish-shaped bracket running the entire length'of the machine and in which is guided the auxiliary pre'sserbar 6 On the bracket 0 is mounted-the standards d, supporting means for passing ,the thread or yarn carrierdcompletely around each-knitting needlee, to form loops thereon, for ,a; purpose. to be presently more vf-ully explained. I

' r, isthemain shoggiiig shaftof'iacotton stopj", of the auxiliary resser-bar b f", are springs connected atone extremity to each'ofthe auxiliary presser-bars b and. at "the opposite extremity to a stationary V portion ofthe regular presser-bar 11 These springs are adapted to hold the auxiliary r presser bars out of the way of the knitting needles e, during the period of ordinary -knitting of the blank in the machine. Durare not pressed off, that is, in respect to the blank forming the lower portion of the leg, between the heel-caps and where the foot portion is to be united thereto. Thisis accomplished by throwing the auxiliary pres'ser-bars b into action with the needles a, through the operation of the cam f actuating 'the roller f, carried by the arm f, and moving the finger f in-a'. forward direction to overcome the tension of the springs b, to close beards e of'the knitting needles 6, as will be readily understood from Fig. 5. During ordinary knitting by the machine, the beards e, of the needles 6, contact ,with the regular presser-bar 72 so as to cast off threadoryarn cl. During the time when- 1 the auxiliary resser-bars 6?, are in action and that is while the heel-caps are being knitted,thej needles 6, are limited in their action so that instead of the beards e contacting with the regular presser bar 6 they contact only with the auxiliary presser-bar b, to cast off needles. This limitation is efiected by the-double faced cam f whereof one face an, causes the beards 6 of the needles e, to contact withthe regular resser-bar 6 while the other face iv, causes the beards only of the needles'e, to contact with the auxiliary presser-bars b. When the roller f, is operated upon by the face an, of the cam through the series of connecting links g, 9 and g and the needle-bar 9 thebeards e of the needles 6, will be closed by the regular presser-bar b and when the roller 7, is shifted so that it is operated upon by the face w, of the cam f through the series'of connecting links g, g and g and needle-bar 9 the beards 6 of the needles 6, will be closed -by the auxiliary presser-ba'rs b The rollers f and g", are shifted on their bearings f and g, by means of forked rods andv g journaled at g",

'65 to thestandards a, of the machine.- The iary resser-bars 6 showing particularly ingzfthe time of knittin the heel-caps, oertai'nloops formed by t e needles 6 at the top of the instep of the stocking blank,

heel-cap portions 7:? and it, of the blank,

f and to cause the auxiliary presser-barsrollers f, f and g, are held in contact with their respective'cams P, f and f by coiled springs f, f and f. The vertical movement of the needle-bar g and needles e, is accomplished in the ordinary mannr through the cam f operating upon the roller 'g carried. by the arm g, which in turn is pivoted to'the'needle-bar g In Figs. 2 and-3, are illustrated the auxil- 1 in Fig. 3, how cutout to operate in the machinei onlyfupon certain oflthe'beards e of the needles. e, during th fabricating of the. heel-caps'flIn the fabricating of the heel-caps the thread or yarn d is not cast off of the needles'ige, between the cut out portion b, of the said auxiliary presserbars 6 but held on the needles e, while the beards of the balance of-then eedles contact tional needles on both sides to complete the vwidth of the foot-portion of the blank are brought into action to provide the strength ening loops h, for the selvage portion ofthe 7 foot to be united with the loops h of the 9.5 when, thereafter ordinary knitting of the foot hf, is continued ,until the foot blank, has been entirely completed. 7'

In Figs. 6, 7, 8 and 9, are illustrated in detail, the manually operated means 2', for passing loops h, around each of the needles 6, in position on,opposite sides 6 and b, of the cut away portion 6 of the auxiliary presser-bars 6 This means 2', consists of a manually operated shaft 2'}, supported in the standards d, on the dish-shaped "base-plate c, of the machine. In -a certain portion of the said shaft 2' is provided a threaded surface i and on which is mounted a block i having a U-shaped vertical extension '2', free to move on a splined shaft 11, carrying a cam i, the purpose of which will be 'res-' entlymore fully explained... The sha ts-i and i, are positively geared with each other at i and revolved by means of a handled", as shown in Fig. 6. p v

'i and i are brackets swiveled to the shaft 2'}, and which brackets as so arranged form journals for the shaft a These brackets are provided with tie-rods 2'" and @1 for steadying the swivelingmovements of the same in connection with the shaft i, through rotations thereof. On the shaft 41, and arranged in the fork'portions d, of

the brackets J, are located cams d. The 12% 2' to cans the thread or yarn carriers d},'-to be "moved correspondingly backward and. forward between needles 6, of the needlecarrier 9 i The flat rod (i supporting the thread-carriers al is slidably mounted in the block t and carries a pin d, held against the ham 2', under the tension of the coiled spring 2' By rotation of the cam the pin d, i moved longitudinally of the needle-bed toicause the rod d of the thread or yarn carri rs (Z to shift correspondingly and therebyto cause the thread or yarn to be moved in", the' di'rection of the length of the needle-bed through one needle space back- Ward and forward of the beards 6 of the needles 6. The working place for this movement is governed by the operation of the screw 2' and nut "J ,-to shift the needlebar. The movement of the thread or yarn carrier (Z through the needle-bed, is effected by rocking the whole structure 2', about the shaft 2, as a center, whereby the thread or yarn is passed completely around each needle occupying a position to receive the same, thereby to form the loops h, to be subsequently looped to the selvages h, of the heel caps k and h From the foregoing description of this flat cr straight machine, it will be understood that during the knitting of the f2LSl1 ioned leg blank ordinary knitting is continned until the heel-caps are to be formed,

when instead of casting off loops between the heel-caps as heretofore was the practice, the loops are retained on the needles in action during the period of formation of the entire heel-caps and when completed the last loops formed of the heel-caps are cast off and the middle section loops still remaining on theneedles are brought into such action as to continue uninterruptedly the formation of the stocking blank until completed. Upon removing the blank from the machine, the only operations necessary to complete the stocking are first, the looping together of the seams h and M, at the side of the heel;. and second, the looping up of the back, sole and toe seam, as usual.

Having thus described the nature and obj ects of my invention, what I' claim as new and desire to secure by Letters Patent is 1. In a straight bar knitting machine, a needle-bar equipped with spring beard [needles and means to operate it, yarnfeed ing means and a main needle-beard presserbar, in combination with an auxiliary prcsser-bar having heard pressing portions, adapted to press the beards of the end needles only of a series of needles and means to control the movements of the needle-bar to secure cooperation of the needles with the main presser-bar, or with the auxiliary presser-bar only.

2. In a straight bar knitting machine, a needle-bar equipped with spring beard needies and means to operate it, yarn feeding v means and a main needle-beard Presser-bar,

in combination with an auxiliary presserbar having beard pressing portions adapted to press the beards'of the end needles only of .a series of needles, means to control the movements-of the needle-bar to secure cooperation of the needle with the main presser-bar, or with the auxiliary 'presserbar only and a device for feeding a course of yarn wrapped in closed loops about certain I needles of those cooperatttig-with the auxiliary presser-bar.

8. In a straight bar knitting machine,=-.a needle bar equipped with spring beard needles and means to operate it, yarn feeding means and a main needle-beard'presserebar, n combinationwith an auxiliary presserbar having heard pressing portions adapted to press the beards of the end needles only of a series of needles, means to control the movements of the needle-bar to secure cooperation of the needle with the main presser-bar, or with the auxiliary presserbar only, an auxiliary yarn guide, means to traverse said guide along the needles at the ends of the series by overlapping, progressively shifted, reciprocations, and cooperating means to move said guides through the needles, whereby the yarn is looped upon certain of said needles to form a beginning course of loops.

4. In a straight bar knitting'inachine, a needle-bar equipped with spring beard needles and means to operate it, yarn feed "movably mounted in said nut and provided with ayarn-carrier and with devices formoving said bar and thereby said carrier,

around said needles. V In witness whereof, I have hereunto set my signature in the presence of the two subscribing witne'sses hereto.

' KARL NEBEL.

l/Vitnesses: h J. WALTER DOUGLASS,

THOMAS M. SMITH.

Images