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March 15, 1938. H. MCADAMS 2,111,476 STITCH TRANSFER MECHANISM FOR KNITTING MACHINES Filed March l2,‘1936 2 Sheets-Sheet 2 INVENTOR. Hal-'1" 1__| MBAdETTLS BY r 04M’ TZ% ‘ -4% I’\T_TORNE '1 s. ' March 15, 1938. H. MCADAMS' ' ' 2,111,476 STITCH TRANSFER MECHANISM FOR KNITTING MACHINES Filed March 12, 1956 2 Sheets-Sheet 2 FvlG..-2. . z/i iw '50 Z0 60 FIG. 12. 5/ 50 M gm éo $5- 5v 10 INVENTOR. é; HEI'P'H McAdam-15 I Z0 5;; 8/ 30 I4 12 ' E“ g 255% 1 ATTORNEYS. Patented Mar. 15, 1938 2,111,476 UNITED STATES PATENT OFFICE 2,111,476 STITCH TRANSFER MECHANISM FOR KNITTING MACHINES Harry McAdams, Reading, Pa, assignor to _, The Nolde & Horst Company, Reading, Pa., a cor poratiom Application March 12, 1936, Serial No.‘ 68,526 6 Claims. (Cl. 66-95) This invention relates to improvements in knit ting machines, and has particular reference to cap, showing the needle butt directing groove an improved dial needle for use upon rib knit and movable cam arrangement. ting machines capable of transferring stitch a vloops from cylinder needles to dial needles, and vice versa. ‘ The primhry object of the invention is the pro vision of an improved knitting machine needle, which may be either of the‘dial or cylinder type, 10 having an improved stitch loop expanding eye and associated stitch loop extending shoulder there on capable of expanding and extending a stitch loop so that it may be transferred to a comple mentary needle of another set of needles, with out the use of transfer bits or other relatively movable parts. A further object of the invention is the. pro vision of an improved knitting machine needle having a loop expanding construction thereon by 20 means of which a stitch loop may be expanded and extended for disposal upon another needle; the loop expanding construction being of such nature that it may be resiliently compressed to the normal width of the body of the needle. A further object of the invention is the pro 25 vision of an improved knitting machine having complementary cylinder and dial needle sets in ‘which needles of the cylinder set are directly opposed to needles in the dial set; the latter be 30 ing provided with improved means to effect a stitch transfer from dial needle to cylinder needle without the necessity of appreciable needle shift ing, and without the use of relatively movable ' stitch transfer bits or'other associated parts. 35 - . . In the accompanying drawings, forming a part of this speci?cation, and wherein similar refer 40 ence characters designate corresponding parts throughout the several views, Figure 1 is a vertical sectional view taken through a cylinder and dial construction of the improved knitting machine, showing the associ 45 ated features thereof. Figure 2 is an enlarged plan view of the dial bed of the machine, enlarged to approximately twice normal size, and having the improved dial needles associated therewith; the dot and dash 50 lines designating the normal butt directing grooves in the dial cap. Figures 3, 4 and 5 designate a typical dial and cylinder needle in a series of steps to effect the transfer of a stitch loop from a dial needle to a cylinder needle. . ‘ Figures '7, 8 and 9 are respectively views show ing in top plan, side elevation, andsopposed side elevation the improved dial needle. Figures 10, 11 and 12 are bottom plan views of the improved dial needle, showing respectively the normal position of parts of the needle when projected in stitch transfer relation; the position of the parts when retracted fully in the groove of the needle, and a view with the resilient loop opening arm forming part of the eye of the nee dle distorted slightly to designate its association With the body and other parts of the needle. Figure 13 is a-perspective view of the improved dial needle with a resilient loop expanding arm associated as an integral part thereof cut away to show the grooved construction of the loop ex panding eye provided in the body of the needle. Figure '14 is an enlarged vertical sectional view taken substantially on the line I t—l t of Figure 8, through the loop expanding eye of the needle. Figure 15 is a view showing how the improved - loop expanding eye or construction may be like wise adaptable vfor use upon a cylinder needle where it is intended to use the knitting machine for transfer of stitch loops from cylinder needles to dial needles. ' - In the drawings, wherein for the purpose of 30 illustration is shown a preferred embodiment» of theinvention, the letter A may generally desig nate a knitting machine, which may include a ro tating cylinder B and a rotatable dial bed 0. The cylinder B may have an associated set of cyl inder needles D and the usual and appropriate‘ Other objects and advantages of the inven tion will be apparent during the course of the fol ‘lowing detailed description. , Figure 6 is an inverted plan view of the dial means for actuating the same, which may include suitable cams E and E’ and jacks F if desired. v A set of dial needles are provided for use in the grooved dial bed 0. These dial needles may be 40 appropriately designated by the numeral 20. As part of the dial a stationary grooved cap G is‘ used. 'Suitable yarn feed ?ngers H are provided for feedingv various yarns to the dial and cyl inder needles. The other associated parts of a knittting machine may be used, such as a latch ring K and web holder and sinker construction L. The knitting machine upon which used may be of the general character of the Banner type of machine shown in U. S. Patent No. 933,443, or 50 if desired the knitting machine may be of a stationary cylinder type with a revoluble cam s-et. Preferably the knitting machine is of the type disclosed in my U. S. application, Serial No.‘ 755,621, ?led December 1, 1934 or of the character 55 2 2,111,476 embodied in my more recently developed ma and no more than the normal thickness of a chine for automatically knitting continuous strings of stockings with interchange of stitches between cylinder and dial needles and vice versa, conventional dial needle. shown in my U. S. application Serial No. 86,420, ?led June 20, 1936. . In my prior ?led U. S. application Serial No. 755,621, ?led December 1, 1934 and Serial No. 729,655, ?led June 8, 1934, I have shown the 10 associated use of transfer bits with dial needles in order to effect the loop expanding and ex tension _of the stitch loop for transfer to the needles of another set. In the present applica tion I do away with this by means of an im 15 proved construction of the needle itself, without , weakening the needle; without interfering with its normal knitting function, and without in creasing the normal thickness or width of the needle, so that with the needle ?ne gauge knit 20 ted work may be accomplished. The dial bed C as shown in Figure 1 of the drawings, may be keyed as at 25 to the dial drive shaft 26. The upper surface of the dial bed C may be grooved as in usual manner with dial 1 needle receiving grooves 21. These grooves are of normal thickness so that a large number of needles may be used in the dial for the knitting of fine gauge work. These grooves 21 are radi ally disposed and each for their major length are of the same width; They enlarge at their fore ends 28, as is usual. The dial cap G is shown inverted in Figure 6 of the drawings, and the groove and cam ar rangement is shown in dot and dash ‘lines in normal relation to the dial bed and needle butt arrangement in Figure 2 of the drawings. Thus, the dial cap G may have a groove 30 wherein the butts of the dial needles travel in the di rection indicated by the arrows in Figures 2 and 40 6 of the drawings. Stationary stitch knitting and stitch transfer cams 3| and 32 respectively are provided for directing the dial needles into stitch forming and stitch transfer relation along grooved paths 33 and 34. Compressible plunger 45 cams 36 and 31 are provided on the cap G for de?ecting the butts of the dial needles into grooves 33 and 34 respectively against the sta tionary cams 3| and 32. These plunger cams 3G and 3'! are actuated by plungermechanism, such as shown at 33 in Figure 1 of the draw ings, and has been more speci?cally described in my co-pending applications Serial Nos. 588,798, ?led August 22, 1931, and 755,621, ?led Decem ber 1, 1934. The improved dial needle 20 includes a body 55 40 of normal needle thickness—and height hav ing a reduced forward end ll provided with the loop receiving hook 42. 'Preferably the needle is of the latch type and has a latch 44. Inter 60 mediate its ends the body 40 has preferably up standing butts 45 which may be either long, short, or medium, as desired. The lower sec tion of the body 40 at one side is provided with a resilient and yieldable loop expanding arm 65 50, in height preferably one-half of the height of the body 40, and in thickness preferably one half of the thickness of the body. It may be formed by splitting the body 40, or by grooving the body 40 and soldering the arm 50 in place at 70 5|. It extends forwardly along the side of the body, relatively disconnected therefrom, so that it may be resilient-1y ?exed against the body to provide with the body a thickness which is no 75 more than the normal thickness of the body 4.9 - The body 40 at the side thereof facing the arm 50 near the reduced portion 41 is con cavely recessed, as shown at 60 in the drawings, from the extreme lower edge thereof preferably to the top edge of the body 40. This recess, due to the thickness of the body at this loca tion, is preferably less than one-half of the nor mal thickness of the body 40 in order that the 10 dial needle may be disposed substantially oppo site a complementary cylinder needle which is to be inserted through the eye of which the re cess 60 is a part, without the necessity of rela tive lateral shift of the cylinder or dialneedles, although such shift may be accomplished if desired in accordance with the arrangement which I have developed and set forth in my ap plication Serial No. 86,420, ?led June 20, 1936. The front end of the loop expanding arm 50 is normally bowed outwardly at 65, in facing relation with the recess 60, to provide there with the loop opening or expanding eye through which the cylinder needle D is extended, as shown in Figure 4 of the drawings, to receive the stitch loop 10. The fore end of the body 40 is provided with an upwardly and rearwardly sloping stitch loop engaging and expanding shoulder ‘II at a location which is rearwardly of the tip end of the latch end of the needle when the latch is fully opened, and the extreme free end of the resilient arm 50 is likewise sloped in the same plane with this shoulder ‘II and ?ush therewith. The lower edge of the needle 20 Just forwardly of the shoulder ‘II is entirely cut away at 80 to receive an under-hanging lip 8| which is provided at the lower edge on the fore end of the spring arm . 50; said lip underlying the dial needle in this recess, as shown in Figures 10 and 11 of the drawings, so that the arm 50 at its forward free end may effectively take the stitch loop and move it with exactness into proper ex panded and extended position upon the eye and against the shoulder of the needle for de?nite and certain transfer position, as to all of the dial needles with respect to the complementary cylinder needles. A portion of the wall of the body of the dial needle facing the bowed end 65 of the resilient arm 50 may be removed at 84, shown in Figures 9 and 14 of the drawings, al though not for as great a vheight as the height of the arm portion 65. This facilitates stitch application to the eye and facile insertion and withdrawal of the cylinder needle. 55 The normal ‘position of the loop expanding arm 50 relative to the body of the needle is shown in Figures 7 and 10 of the drawings, and in this position the lip 8| underlies slightly in the lower recessed edge~ of the body of the dial needle. 00 Sliding in the groove of the dial bed the loop receiving eye opening is only expanded suffi ciently to receive the cylinder'vneedle when the dial needle is projected by the cams 31 and 32 to the positions shown in the left hand portion 65 of Figure 2 of the drawings. In retracted posi tion the bowed portion 65 of the resilient arm 50 is compressed ?at against the recessed wall of the body of the dial needle so that the maxi mum width of the dial needle at this loop ex 70 panding eye is then no greater than the maxi mum width of the body 40 of the dial needle, as can readily be understood in the retracted positions of the dial needles shown in the grooves of the dial bed in Figure 2 of the drawings. 75 3 2,1 1 1,476 I Solid black butts shown in Figure 2 of the the lip of the spring arm in the recess beneath drawings are the long butts, and the blank butts the lower edge of the body of the needle permits are the short butts. the arm to e?‘lciently enter the stitch without any chance of missing. In this connection it should be noted that this feature is of considera ble importance because normally the stitch is drawn tight on top and at sides of the needle, due to the web take-up pull upon the fabric. Various changes in the shape, size, and ar rangement of parts may be made to the form of 10 invention herein shown and described, without departing from the spirit of the invention or the scope of the claims. The cam 31 is depressed part-way and ?rst moves the long butt dial needles into the transfer position shown in the left hand portion of Figure 2. The plunger cam 32 projects the dial needles so that their loop expanding eyes are extended beyond the periph ery of the dial, and in superposed relation over 10 the complementary cylinder needles. The cyl inder needles are elevated by appropriate‘ cam means E’ after the manner substantially de scribed in my co-pending application Serial No. 755,621, ?led December 1/1934, to receive the stitch loops 10. As shown in Figure 4 of the drawings the stitch loop 10 is expanded by the eye of the dial needle and rests against the shoulder ‘II. Note'that no part of the stitch loop is interfered with by the arm 50 or by the 20 body of the dial needle as to impede its effective I claim: - 1. As an article of manufacture a knitting ma chine needle having a body portion provided with a stitch drawing hook thereon, the body portion having a cam actuating butt transversely posi tioned thereon and a stitch loop engaging shoul der facing the hook of the needle between said 20 extension and expansion for proper reception - hook and said butt, the said body portion just with respect to the cylinder needle which is to rearwardly of said shoulder being recessed in a receive it. After insertion of the cylinder needle side wall through part only of its thickness from ' into the eye of the dial needle the loop slips the lower edge thereof upwardly, a stitch loop with facility onto the cylinder needle, and upon spreading arm connected with the body of said retraction of the dial needle the stitch will en needle rearwardly of said recessand resiliently tirely clear without catching on any part of the extending forwardly in direct facing relation with dial needle, as can well be understood from Fig ures 4 and 5 of the drawings. As shown in Figure 2 of the drawings the cyl inder needles are preferably provided in number twice the amount of the dial needles. The ar rangement is substantially the same and for . the same purposes as set forth in my above mentioned co-pending application Serial No. ‘755,621, ?led December 1, 1934. However, the dial needles are preferably almost directly on posite alternating cylinder needles and these cylinder needles are the ones which are inactive 40 during one and one rib knitting. They are only active during plain knitting when for the most part the knitting is done on the cylinder needles, and it is to these cylinder needles that stitches of the dial needles are to be transferred when transferring from rib knitting to plain knitting. The fact that dial needles may be placed sub stantially opposite the cylinder needles which are to receive stitches therefrom is made possible I by reason of the improved loop expanding‘ eye r _ construction of the dial needle. It is of course to be understood that I con template to make a cylinder needle having a loop expanding eye and shoulder arrangement similar to the above described for the dial needle, and such a cylinder needle has been shown in Figure 15 of the drawings. The parts of this cylinder needle are substantially identically the same with the similar parts of the dial needle, and similar reference characters have been ap (it plied thereto except that the exponents “a.” have been added to. designate corresponding parts of the cylinder needle. The transfer of stitch loops from cylinder needles to dial needles 'has been effectively described in my above identi?ed co pending application Serial No. 755,621, ?led De cember 1, 1934, and the same arrangement may be. used with the modi?ed cylinder needle of the present application. ‘ From the foregoing it can be seen that an improved dial needle ‘has been provided with a construction integral therewith which will per mit of the efficient transfer of a stitch. The nat ural resiliency of the spring arm spreads the loop of the stitch to about three times normal size when in transfer position. The disposal of said recess to provide a needle entering eye, said arm at its free end terminating adjacent the shoulder of the needle and there having a laterally extending lip, the lower edge of the needle being notched to receive said lip at all normal positions of the needle during operation. 2. As an article of manufacture a knitting ma-‘ chine needle including a body portion having a stitch loop drawing hook thereon and a cam actu ating butt, the needle bodybeing reduced at its forward end and providing a stitch loop engaging shoulder between the said butt and said hook in facing relation with the hook, a resilient stitch 40 loopspreading arm connected with the body and extending forwardly thereof and at its free end terminating in a substantially ?ush relation with the said shoulder, the lower edge of the body below said shoulder being recessed and the said 415 spring arm being provided with a stitch loop entering lip normally lying in the recess. 3. As an article of manufacture a knitting ma chine needle having a body portion provided with a stitch drawing hook thereon, and a yieldable so’ spring arm mounted upon a side of the body por tion with a resilient portion extending freely for wardly towards the hook end of the body portion to provide a needle entering eye, said resilient portion of the arm directly facing the side wall of the body portion of the needle, the bed facing edge of the body portion having a niche therein, and the free end of the arm having a lip portion extending laterally in normally socketed relation within said niche and extensible out of said’niche 60 only when forced against its normal tendency to do so. 4. As an article of manufacture a knitting ma chine needle having a body portion provided with a stitch drawing hook thereon, and a yieldable (i5 spring arm mounted upon a side of the body por tion with a resilient portion extending freely for wardly towards the hook end of the body portion to provide a needle entering eye, said resilient portion of the arm directly facing the side wall of the body portion of the needle, the bed facing edge of the body portion having a niche therein, and the free end of the arm having a lip portion ex tending laterally in normally socketed relation 4 2,111,476 within said niche and extensible out of said niche only when forced against its normal tendency to ~ do so, the side wall of the body portion of the needle facing said resilient portion of the arm being laterally recessed through a portion of the 6. As an article of manufacture a knitting ma chine needle having a body portion provided with chine needle having a body portion and provided with a stitch drawing hook thereon, said body portion in a side wall thereof being recessed thru a stitch drawing hook thereon, and a yieldable 5 spring arm mounted upon a side of the body por tion with a resilient portion extending freely for wardly towards the hook end of the body por tion, the side wall of the body portion facing said resilient portion of the arm being laterally re 10 cessed to provide with the resilient portion of the arm a needle entering eye, the body portion of the needle forwardly of said recess having a niche a portion of the thickness thereof to facilitate the close entry of a needle moving transverse to the tending into said niche and normally socketed 16 thickness thereof, and said body portion being notched in the bed facing edge thereof through its entire thickness directly at said recessed por tion. 5. As an article of manufacture a knitting ma 15 forwardly extending resilient arm directly fac ing the said recess and notch. said body portion, said body portion being notched thru the thickness thereof directly at said recess from the edge of said body portion opposite the 20 normal butt edge thereof, and a spring stitch spreading arm mounted on the said side of the body portion of the needle provided with a free therein and the free end of the arm slidably ex therein when the needle is in a needle bed, the said arm being mounted upon the body portion so as not to increase the normal thickness of the body portion ‘and the resilient portion of the arm being collapsible into the recess of the body por- ‘ tion when in the groove of a needle bed. HARRY McADAMS.