US2170076A - Stocking and method of making the same - Google Patents
Stocking and method of making the same Download PDFInfo
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- US2170076A US2170076A US249524A US24952439A US2170076A US 2170076 A US2170076 A US 2170076A US 249524 A US249524 A US 249524A US 24952439 A US24952439 A US 24952439A US 2170076 A US2170076 A US 2170076A
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- Prior art keywords
- knitting
- cam
- sliders
- needles
- butts
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B9/00—Circular knitting machines with independently-movable needles
- D04B9/42—Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration
- D04B9/46—Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration stockings, or portions thereof
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/22—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
- D04B1/24—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration wearing apparel
- D04B1/26—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration wearing apparel stockings
Definitions
- the stocking is one involving plain knitting throughout.
- This stocking comprisesawe'ltlwhlcmaspointedoutlater, T
- This machine is of the well known Bentley type, as illustrated for example, by Spires Patent 1,210,866, dated January 2, 1917 and Bentley Patent 1,713,736, dated May 21, 1929.
- This type of machine comprises upper and lower cylinders which are driven in unison during both rotation and reciprocation and are provided with aligned slots in their exterior surfaces within which are adapted to slide double-ended needles having upper and lower hooks with cooperating latches. Also slidable Within the slots, but remaining in their respective cylinders are upper and'lower sliders which are held in position by spring bands.
- the upper sliders carry transfer butts and knitting butts, the transfer butts be ing above the knitting butts, while the lower sliders carry transfer butts and knitting butts, the transfer butts being below the knitting butts.
- These transfer butts are for the purpose of providing transfer of. the needles from one cylinder transfer of the needles there is provided at the height of the separation between the cylinders a separating cam indicated at 86 in Figure 2, which includes a slot having various cam surfaces for the purpose of moving outwardly away from engagement with the hooks of needles those sliders from which transfers are being made.
- cams comprise a cam provided with a rise 82 adapted toengage the knitting butts of the lower sliders and cause the needles which they engage to rise so that the loops they carry will clear their latches.
- a stitch cam 86, a center cam 88 and a second stitch cam 90 are associated to cause the lower sliders to move needles through a conventional knitting wave.
- Raising cams 92 and 94 are provided which are, respectively, operative during forward rotation and forward reciprocations and backward reciprocations. Raising pickers 96 and 98, of conventional spring controlled type, are located in the vicinity of these various cams.
- a guard cam 84 is provided to insure proper motions of the needles after the rise 82 during forward knitting.
- the lowering picker I00 which is spring controlled for its operation in conventional fashion
- the knitting butts of theupper sliders are also adapted to be properly controlled for knitting when the cylinders are moved in a forward direction, no provision being made for knitting during backward reciprocations because the needles in the upper cylinder need not form stitches at such times.
- a latch clearing cam I02 is provided, this cam being mounted so as to be slid-v able toward and from the needle cylinder under control ofthe main pattern drum of the machine. Following this is a cam I03, designed to hold the upper sliders in lower position, followed by a cam I04, which is also adapted to be moved toward and from the upper cylinder under the control of pattern cams on the main pattern drum.
- cams I06 and I08 are the latter being the stitch cam for control of the upper sliders to cause them to move their needles to draw stitches after taking yarn.
- cam I03 Above the cam I03 is a race IIO for the passage of the knitting butts of the upper sliders, this race forming a continuation of. the race IN.
- a race I05 below the cams I06 and I08 is also provided.
- a lower transfer cam is provided at H2, this being under the control of a lever operating from thepattern drum of the machine, which cam H2 is adapted to occupy three alternative positions so as to fail to engage any transfer butts on the lower sliders, engage long transfer butts thereon, or engage the long and short transfer butts thereon. 7
- an upper transfer cam H4 is provided, also arranged to be controlled through a suitable lever, not shown, by means of cams on the pattern drum of the machine so as to occupy any one of three alternative positions to miss all pattern butts carried by the upper sliders or to engage successively butts of different lengths as will be presently described.
- cam [I2 is a cam 6 adapted to move the lower sliders downwardly after they are raised by cam H2 and a similar cain II8 following cam H4 is adapted to raise the upper sliders after they are lowered by cam II 4.
- cams II2, II6, II4 and H8 are arranged in sequence so that rise under the action of cam H2 and lowering under the action of cam II8 of the lower sliders is immediately followed by the lowering under the action of cam H4, and the rise under the action of cam I I8 of upper sliders.
- a cam I22 which is located in a position to engage long butts only and which is'arranged to slide under the action of controlling means in a vertical direction so as to be located either at a level substantially that of the top of cam 80 or a higher level to raise the long butts as specified.
- a cam I20 located'above the cam I22.
- the cam I20 is mounted on the same slide as the cam I22.
- a differential action is required and consequently the cam I20 is located ata fixed level, but is arranged to be moved inwardly and'outwardly under the control of the pattern mechanism of the machine so as to occupy either one of two alternative positions, i. e., an outer position in which it does not engage any knitting butts and an inner position in which it may engage both long and short knitting butts.
- cams which were not heretofore mentioned as being capable of adjustable positioning are, in general, fixed, but it will be understood that, with due regard to the necessary cam arrangements for performing the desired results, the various cams may be made adjustable and additional controlling mechanisms added to produce variations as desired for theformation, for example, of special heel, foot and toe structures. Inview of the state of the art, however, these changes will be clear to machine designers.
- the upper end of the slider will be cammed further outwardly by a rise on the cam 66 so as to be disengaged from the lower hook of the needle; While such disengagement is effective, the cam H6 engages the transfer butt of the lower slider and pulls the slider' downwardly. As the slider is then released by the cam 66 it will move back against the hook of the needle, but with its engaging portion below the hook so that it may slide downwardly independently of the needle which it has released.
- The'cams H2, and Ill may be active at different times or may be simultaneously active to 1 effect a double transferin a single course involving the location of certain needles in the upper cylinder followed by either immediate return of some of the needles so raised or of other needles to the lower cylinder. 1
- the slight angular displacement between the cams H2 and H4 permits such action to take place.
- FIG. 3 In this diagram there are illustrated in conventionalized form the upper and lower sliders, indicated by the vertical lines in the upper and lower portons of this figure, adjacent the line of separation I24 between the long and short knitting butt series of lower sliders. It may be assumed, for example, that the machine is of a type carrying two hundred needles. The numbers of' the end needles of both the long and short butt series. of lower sliders are indicated at the bottom of the figure, i. e., the hundredth needle of the long butt series of sliders is located adjacent thefirst needle of the short butt series of sliders. Long knitting butts of the lower sliders are indicated at I26, and short knitting butts at I28.
- sliders I34 which'contain no transfer butts, these sliders remaining always in, the lower cylinder and holding their needles in that cylinder.
- sliders asindicated at I40 which also are without transfer butts.
- the knitting of the rib top 4 may then be begun merely by permltting the cam I02 to move into its active position, .this operation taking place in steps by having it first move inwardly as the short knitting butts. i 32 of the upper sliders arepassing it, and it will move to its full inward position as soon as it is cleared by these short butts and depresses the long butts I30.
- cam I02 By the action'of cam I02, the loops of the upper cylinder needles are caused to clear their latches.
- the path of the knitting butts of the upper sliders will then be below cam I82, below I03, above I04, I05 and I08, during passage by the last of which the needles take yarn, thence. into the groove IOI to beagain lowered by the clearing cam I02.
- the needles of the lower cylinder are passing through the knitting wave previously described. Accordingly, the 1 x 1 rib structure of the top is knit.
- the second transfer now takes place in passing fromithe 1 x 1 rib top to the. 6 2r 3 rib leg I6 having plain stitched parts 8 and ribs I0.
- the cam H2 is moved all the wayin to engage the transfer butts of all of the lower sliders.
- the transfer cam-I I4 is moved inward so as to engage only the longest transfer butts I 42 of the upper sliders.
- sliders are transferred to the lower cylinder.
- Knitting underthe conditions just mentioned will continue until the point of change to the several rounds indicated at I2 preceding the knitting of the heel. At the point of change to these rounds. of knitting the upper transfer cam. H4 is moved inward to engage all of the transfer butts of the upper sliders, i. e., butts I42 and I44.
- cam I28 is Withdrawn and the cam I22 raised to engage the long knitting butts of the lower sliders
- cam I04 is withdrawn from its active position so that the needles in the upper cylinder will also be inan inactive position so as not to engage the yarn, the knitting butts of their sliders moving along the race I05 below the various cams.
- this invention there is formed still another narrowed extension 26, which is provided by rendering the lowering picker IIlIl inactive so that needles corresponding to the long butt sliders are picked up one by one at each end of the series of active. needles resulting in a further narrowing. This narrowing may be continued if desired into the short butt series of sliders to produce the desired formation in front of the heel.
- Hirner Patent 1,154,116 a foot which does not have the narrowed gore '26.
- a foot which does not have the narrowed gore '26 For the formation of such a foot it is, of course, only necessary to omit those operations which give rise to that gore and proceed with the forma-' tion of the foot immediately following the formation of the gore 26.
- FIG 4 A third type of Hirner foot, illustrated in Figure I of Hirner Patent 1,549,307, is illustrated in Figure 4, from which its mode of formation will be readily apparent in view of the discussion of the machine operation advanced heretofore.
- the leg of this stocking is illustrated at I50 and is produced in the same fashion 'as the leg 6 of the modification of Figure 1.
- the rounds I52 are produced in similar fashion.
- Some modification of the heel is illustrated to produce a greater turn of the shape of the stocking at. the heel. This involves the formation of the pocket portion I59 by widening to the point I51. At this point the lowering picker I00 is rendered inoperative to produce narrowing to the point I58, followed by widening through the enthe portion IBI corresponding to 20 of Figure 1,
- Such patterns are, of course, produced by more elaborate control of the transfer operations and are secured by suitable set-ups of the transfer butts on both the upper and lower sliders with corresponding controls of the transfer cams.
- the sliders can be associated with jacks having butts at different levels cooperating with pattern controlling cams.
- Such designs as well as ribs of the type specifically disclosed are characterized by the selective reverse concatenation of the loops.
- Such patterns can be produced while feeding a single yarn to the needles.
- plating and reverse plating will occur in well known fashion, normal plating occurring in those loops which are formed by the needles in the lower cylinder and reverse plating will occur in those loops formed by needles in the upper cylinder.
- Selective floating may also be secured in well known fashions to produce quite elaborate designs in the leg. Wrapping may, of course, be accomplished in conventional fashion.
- the foot itself is susceptible of variations con-- sired the foot may be formed by knitting the heel and arch on needles controlled by short knitting butt sliders only, thereby avoiding the necessityfor increasing the stroke or throw of the needle cylinder.
- the foot may be formed by knitting the heel and arch on needles controlled by short knitting butt sliders only, thereby avoiding the necessityfor increasing the stroke or throw of the needle cylinder.
- the foot may be formed by knitting the heel and arch on needles controlled by short knitting butt sliders only, thereby avoiding the necessityfor increasing the stroke or throw of the needle cylinder.
- the foot may be formed by knitting the heel and arch on needles controlled by short knitting butt sliders only, thereby avoiding the necessityfor increasing the stroke or throw of the needle cylinder.
- a knitted stocking comprising integrally knitted leg, heel and foot portions with a gore formed by reciprocatory knitting located between the heel and foot portions and extending above the heel portion, said leg being provided with design structure comprising selectivelyfieversely concatenated loops.
- a knitted stocking comprising integrally knitted leg, heel and foot portions with a gore formed by reciprocatory knitting located between the heel and foot portions and extending above the'heel portion, knitting wales extending continuously from the legportion into the instep part of the foot portion above saidgore, and said leg 1 being'provided with design structure comprising selectively reversely concatenated loops.
- a knitted stocking comprising integrally knitted leg, heel and-foot portions with a gore formed by reciprocatory knitting located between the heel and foot portions and extending above the heel portion, knitting wales extending continuously from the leg portion into the instep part of the foot portion above said gore, and said leg being provided with longitudinally extending ribs.
- the method of circularly knitting a stocking comprising knitting a leg portion by rotary knit ting while selectively reversely concatenating' loops to produce a'design structure, forming byrotary knitting at least one course of plain knitting at the end of the rdrifiition of the leg, forming a heel portion by reciprocatory knitting, forming a goreextending above the heel portion in front of the heel portion by reciprocatory knitting, during the reciprocatory knlttingfailing to interknit yarn withloop's formed during the last course of rotary knitting of the front ,of the 5.
- the method of circularly knitting a stocking .comprisingknitting a leg portion by rotary knitting while selectively reversely concatenating loops to produce a designstructure forming by rotary knitting at, the end of the formation. of the leg at least one course containing plain knitting through at least the extent of the heel and a gore to be subsequently formed, forming a heel portion by reciprocatory knitting, forming a gore extending above the heel portion in front of the heel portion by reciprocatory knitting, during the reciprocatory knitting.
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- Knitting Of Fabric (AREA)
- Socks And Pantyhose (AREA)
Description
Aug. 22, 1939. w. L. HOUSEMAN' 2,170,076
STOCKING AND METHOD OF MAKING THE SAIE Filed Jan. 5, 1959 2 Sheets-Sheet 1 hymn/r0? IY/rA/ESS:
f; MMur Lfi ausmum -Thisinventionrelatestoastocking'andmeth erence to a type'having its footportion morewclosely approaching a right angle with ilsieg portion than stockings generally manufactured;
UNi'rEp STATES PAT nr OFFICE I .s'rocnncaunla'rnonormorns WilburLllo-aniWELa-Igmn Imminent,
toscottallll mutual- $1M. 'amrm s.ua.sqlginawm ecu-m. (case-1st) 'mnn cvedmethodparticularllvinv olresth odofmaklngt'hesameand-hasparticularrefheretofore and having' patterns in its leg portion, the leg portion being knit integrally with its foot portion. 7 Asdisclosedinthe patentstoEAHlmerNos.
1,154,116 and 1,549,307, it is possible inclusion of extra fabric at the bottom of thei'oot -.portionofastocklngtocausethefootportion as a whole to extend at an angle approaching a right angle with respect to the leg. This stocking provides a much better fit on the foot of the wearer than most conventional forms of stock: ings, this being particularly noticeable in the absence of creases over the instep due in the ordinary stocking to the fact that the foot tends to force the foot portion of the stocking more closely toward a right angle with the leg portion than is the casein the stocking beforeit is put on the foot. Additionally, with a stocking of the Hlrner type, a pull exerted on the top of a stocking, for
example, by a garter, does nottend to the stocking about the toe, butflie pull is absorbed by the instep with resultinggreater comfort to the wearer when the stockings are pulled tight. Wear at the toes is also reduced.
As disclosed in said Hirner patents, the stocking is one involving plain knitting throughout.
in the event that it was desired to provide a patterned leg, for example, carrying designs formed by reverse plating or floating or having structural features such as ribs, it was heretofore necessary to provide a leg at the lower end of which were provided transfer stitches to be It is the object of the present invention to provide a stocking and method for producing the same in which a leg portion having structural or and It, respectively, is formed and in front of colored patterning as, for example, ribs, is knit integrally with a foot having the characteristics disclosedin said Hirner patents. By reason of such integral knitting of the-leg portion with the foot portion, the objectionable looped junction is eliminated and a product superior in both appearance a d gt W,
"following 1 ance with the-invention:
formation of sucha stocking on atype ofimaselectivetrahsfr of .needles takes place for transiflonsbetwemstitchedportionsofthestook- 5. lng containing various formations of loops.
Theaboveobjeetsoitheinventionandother objects which more particularly relate to details of the invention will become apparent from the llgmelisadiagrammaticelevationofapreferred form of stocking constructed in accordment in the machine of various needle oontrol-v n ling sliders carrying'knittlng butts;
and l'igmeiis a-viewsimilar to Figure 1, show- 'ingthelowerpartofthelegand'footportion ofanaltemstivetypeofstocklngformedin accordanoewiththeihMtimnv p Referringflrstto-1!lgure1,thereisill thereinapreferredtype'ofstockingformedin accordancewlth the inventlonandtowhich thedisclosure'of themethod-descrlbed herein is go.
made specifically applicable. This stocking comprisesawe'ltlwhlcmaspointedoutlater, T
comprlses'a series of courses-surmounting a rib top 4 in which a conventional 1 x1 rib arrangement may be embodied, which 115309 86 surmounts a ribbed leg portion t liich as' ciiically illustrated in Figure 1, and' asdescribed in connection with the method, islpfithe siell known Englishbroadrlbtypeor6x3i-ibeon struction. The plain stitched 4 six wales wide, while the depressed ribs llare three wales wide, the ribs being due, as'is to the reverse fashions in which the'loops contrasting fabric portions At the lower end of.the leg portion 6 several rolmds indicated at plain knitting. Below these description, read inconiunction with in .the accompanying drawin inwhich:
view illustrating is I: which rounds the Heel, @55- consisting of narrowed and widened portions Iii this is the widened gore I. followed by the narrowed gore It, providing extra fabric characterv istic of the foot of the 'Hlrner type stocking.
Sucharrangement of the gores is specifically ilreferred to above.
the narrowed and widened portions 36 and 38,
respectively, and the loopers rounds indicated at 40 where the stitching takes place to finish the toe of the stocking.
Before discussing the variations of this stocking within the scope of the invention there will be first described the method of its formation upon the double cylinder type of machine com- 'monly used for the production of the so-called English broad rib. This machine is of the well known Bentley type, as illustrated for example, by Spires Patent 1,210,866, dated January 2, 1917 and Bentley Patent 1,713,736, dated May 21, 1929. This type of machine comprises upper and lower cylinders which are driven in unison during both rotation and reciprocation and are provided with aligned slots in their exterior surfaces within which are adapted to slide double-ended needles having upper and lower hooks with cooperating latches. Also slidable Within the slots, but remaining in their respective cylinders are upper and'lower sliders which are held in position by spring bands. The upper sliders carry transfer butts and knitting butts, the transfer butts be ing above the knitting butts, while the lower sliders carry transfer butts and knitting butts, the transfer butts being below the knitting butts. These transfer butts are for the purpose of providing transfer of. the needles from one cylinder transfer of the needles there is provided at the height of the separation between the cylinders a separating cam indicated at 86 in Figure 2, which includes a slot having various cam surfaces for the purpose of moving outwardly away from engagement with the hooks of needles those sliders from which transfers are being made.
These machines are of well known type, and it will be unnecessary to go into them in greater detail in view of the disclosures of the machine patents just referred to. For the purposes of the present invention it will suffice to describe the cams cooperating with the various knitting and transfer butts of the sliders, which cams are illustrated in developed form in Figure 2.
These cams comprise a cam provided with a rise 82 adapted toengage the knitting butts of the lower sliders and cause the needles which they engage to rise so that the loops they carry will clear their latches. A stitch cam 86, a center cam 88 and a second stitch cam 90 are associated to cause the lower sliders to move needles through a conventional knitting wave. Raising cams 92 and 94 are provided which are, respectively, operative during forward rotation and forward reciprocations and backward reciprocations. Raising pickers 96 and 98, of conventional spring controlled type, are located in the vicinity of these various cams. A guard cam 84 is provided to insure proper motions of the needles after the rise 82 during forward knitting.
The lowering picker I00, which is spring controlled for its operation in conventional fashion,
but also adapted for additional control so as to come into operation only at proper times, is arranged to have an inoperative position above the.inactive level of the knitting butts of the lower sliders and is located between guard cams as illustrated. It is unnecessary to go into detail with respect to these various cams, since they perform their usual functions in rotary and reciprocatory knitting, acting on the knitting butts of the lower sliders to properly control the needles which they engage.
The knitting butts of theupper sliders are also adapted to be properly controlled for knitting when the cylinders are moved in a forward direction, no provision being made for knitting during backward reciprocations because the needles in the upper cylinder need not form stitches at such times. A latch clearing cam I02 is provided, this cam being mounted so as to be slid-v able toward and from the needle cylinder under control ofthe main pattern drum of the machine. Following this is a cam I03, designed to hold the upper sliders in lower position, followed by a cam I04, which is also adapted to be moved toward and from the upper cylinder under the control of pattern cams on the main pattern drum. Following this are cams I06 and I08, the latter being the stitch cam for control of the upper sliders to cause them to move their needles to draw stitches after taking yarn. Above the cam I03 is a race IIO for the passage of the knitting butts of the upper sliders, this race forming a continuation of. the race IN. A race I05 below the cams I06 and I08 is also provided.
A lower transfer cam is provided at H2, this being under the control of a lever operating from thepattern drum of the machine, which cam H2 is adapted to occupy three alternative positions so as to fail to engage any transfer butts on the lower sliders, engage long transfer butts thereon, or engage the long and short transfer butts thereon. 7
Similarly, an upper transfer cam H4 is provided, also arranged to be controlled through a suitable lever, not shown, by means of cams on the pattern drum of the machine so as to occupy any one of three alternative positions to miss all pattern butts carried by the upper sliders or to engage successively butts of different lengths as will be presently described. Following the cam [I2 is a cam 6 adapted to move the lower sliders downwardly after they are raised by cam H2 and a similar cain II8 following cam H4 is adapted to raise the upper sliders after they are lowered by cam II 4. It will be noted that the cams II2, II6, II4 and H8 are arranged in sequence so that rise under the action of cam H2 and lowering under the action of cam II8 of the lower sliders is immediately followed by the lowering under the action of cam H4, and the rise under the action of cam I I8 of upper sliders.
For the purpose of raising lower sliders having long knitting butts into an inoperative position during the formation of the heel and toe, there is provided a cam I22 which is located in a position to engage long butts only and which is'arranged to slide under the action of controlling means in a vertical direction so as to be located either at a level substantially that of the top of cam 80 or a higher level to raise the long butts as specified.
For the purpose of restoring lower sliders to action, there is provided a cam I20 located'above the cam I22. In the conventional machine, the cam I20 is mounted on the same slide as the cam I22. In the present case, however, a differential action is required and consequently the cam I20 is located ata fixed level, but is arranged to be moved inwardly and'outwardly under the control of the pattern mechanism of the machine so as to occupy either one of two alternative positions, i. e., an outer position in which it does not engage any knitting butts and an inner position in which it may engage both long and short knitting butts.
The cams which were not heretofore mentioned as being capable of adjustable positioning are, in general, fixed, but it will be understood that, with due regard to the necessary cam arrangements for performing the desired results, the various cams may be made adjustable and additional controlling mechanisms added to produce variations as desired for theformation, for example, of special heel, foot and toe structures. Inview of the state of the art, however, these changes will be clear to machine designers.
Before referring specifically to the formation of the stocking of Figure 1, brief reference may be made to the mode of transfer of needles from one cylinder to the other. Assumimafor example, that a certain needle is in the lower cylinder,-and its hook engaged by a lower slider and is to be transferred to the upper cylinder. the upper slider will have been depressed by the cam I02 to a needle receiving position, its knitting butt moving below the cam I03. When the lower slider reaches the cam 2 its transfer butt will ride up this cam, causing the upper hook of the needle to enter the engaging opening in the corresponding upper slider. At the same time, the upper end of the lower slider, which has a slightly cammed surface, will engage a slidable portion'of the cam 68 and will be moved slightly outwardly thereby. As the rotation proceeds and the lower slider moves across the top of the cam II2, the upper end of the slider will be cammed further outwardly by a rise on the cam 66 so as to be disengaged from the lower hook of the needle; While such disengagement is effective, the cam H6 engages the transfer butt of the lower slider and pulls the slider' downwardly. As the slider is then released by the cam 66 it will move back against the hook of the needle, but with its engaging portion below the hook so that it may slide downwardly independently of the needle which it has released.
Thus the needleis left under the control of the upper slider.
The reverse transfer from the upper slider to the lower one takes place in the same fashion, the cams II and H8 being now effective to move the upper slider downwardly and then upwardly, the slider engaging on its downward movement suitable portions of the cam 68 and being disengaged fromthe needle by suitable surfaces on that cam.
The'cams H2, and Ill may be active at different times or may be simultaneously active to 1 effect a double transferin a single course involving the location of certain needles in the upper cylinder followed by either immediate return of some of the needles so raised or of other needles to the lower cylinder. 1 The slight angular displacement between the cams H2 and H4 permits such action to take place.
Passing now to a consideration of the specific formation of the stocking of Figure 1, reference may be made to the butt set-up diagrammed in Figure 3. In this diagram there are illustrated in conventionalized form the upper and lower sliders, indicated by the vertical lines in the upper and lower portons of this figure, adjacent the line of separation I24 between the long and short knitting butt series of lower sliders. It may be assumed, for example, that the machine is of a type carrying two hundred needles. The numbers of' the end needles of both the long and short butt series. of lower sliders are indicated at the bottom of the figure, i. e., the hundredth needle of the long butt series of sliders is located adjacent thefirst needle of the short butt series of sliders. Long knitting butts of the lower sliders are indicated at I26, and short knitting butts at I28.
' The knitting butts of the upper. sliders are also long and short, as indicated at I and I32, respectively, but only for the purpose of facili tating the entry of cams, and for this purpose the line of demarcation between the sliders is not at I24, but is displaced into the sole needle series, as indicated in the figure.
So far as transfer butts are concerned, the
lower sliders are of three classes; First there are sliders I34 which'contain no transfer butts, these sliders remaining always in, the lower cylinder and holding their needles in that cylinder. Corresponding to these sliders there need not be any sliders in the upper cylinder, though to complete the set there may be sliders asindicated at I40 which also are without transfer butts.
Besides these plain sliders .in the lower cylinder are sliders containing short butts I36 and long butts I38, as indicated. It will be noted that every other slider contains a long transfer butt I38, the sliders having "short transfer butts being interspersed'in a-regular fashion, as will be obvious from discussion of the knitting.
In the upper cylinder besides the sliders I40 which carry no transfer butts there are sliders carrying transfer butts of'two lengths indicated at I42 and I. The arrangement of these various sliders will be evident from the discussion of the operation of the machine. For convenience of reference, there are indicated in the central portion of the figure the groups of sliders corresponding to the needles .whic'hform plain and rib stitches during the production of the leg. However, this diagram does not hold except for the leg, since during the formation of the rib top every other needle is in the upper cylinder and forms rib stitches, while the intermediate needles are in the lower cylinder and form plain stitches. Similarly, during the formation of the heel, foot and toe portions,.plain fabric is knit, on many of the needles which form rib stitches in the leg.
In the operation of the machine to form the stocking of Figure 1, all of the needles followingthe formation of the-previous stocking will be in the lower cylinder engaged by the lower sliders. At this time, cam I02 will be in its active position to engage the knitting butts of all the upper sliders and cause-them to pass beneath the cam I03. The first course or courses may then be knit as plain courses, the needles being con trolled by the lower sliders, the knitting butts 62 of which will pass up the clearing cam sur- 7 face 82 of the cam 80 and will then be depressed slightly by cam 84 to move up over stitch cam 88 below center cam 88 and below stitch cam 90 to take the yarn, being then raised by cam 92 to the level of the approach to cam 82.
' In order to form a welt 2 and provide for the knitting of the 1 x l rib top, the first transfer of the needles occurs.
It will be noted that every other one of the lower sliders is provided with a long transfer butt I38. 'I'o effect the transfer, the transfer cam I I2 is moved inward so as to engage only the long butts I88 and miss the short butts I38. By reason of this action, and the cooperation of the cam 68 with the upper ends of the sliders, as heretofore described, the needles will be transferred from those lower sliders carrying the long butts I38- to the corresponding upper sliders which now have their knitting butts moving below the cam I03. As the knitting butts of'the upper sliders pass upwardly over cam I08, the
needles thus transferred will take yarn as well as will be provided. As soon as the transfer is completed the cam I02 is withdrawn, whereupon the needles in the upper cylinder will not be caused to move downwardly so that the loops clear their latches and the knitting butts of the upper sliders will move directly from IN through the groove IIO to be raised slightly by the cam I08 and then reenter the groove IOI. As a result, these needles do not take yarn, while the yarn feeds normally to the needles remaining in the lower cylinder. Thus there may be produced a few courses during which loops are held on the needles in the upper cylinder. The resultis knitting of the welt 2.
It may be pointed out here that during all phases of the operation, sliders which do not carry needlespass idly'through the knitting waves along withthose which do control the needles.
The knitting of the rib top 4 may then be begun merely by permltting the cam I02 to move into its active position, .this operation taking place in steps by having it first move inwardly as the short knitting butts. i 32 of the upper sliders arepassing it, and it will move to its full inward position as soon as it is cleared by these short butts and depresses the long butts I30. By the action'of cam I02, the loops of the upper cylinder needles are caused to clear their latches. The path of the knitting butts of the upper sliders will then be below cam I82, below I03, above I04, I05 and I08, during passage by the last of which the needles take yarn, thence. into the groove IOI to beagain lowered by the clearing cam I02. At the same time, the needles of the lower cylinder are passing through the knitting wave previously described. Accordingly, the 1 x 1 rib structure of the top is knit.
The second transfer now takes place in passing fromithe 1 x 1 rib top to the. 6 2r 3 rib leg I6 having plain stitched parts 8 and ribs I0. The cam H2 is moved all the wayin to engage the transfer butts of all of the lower sliders. The transfer cam-I I4 is moved inward so as to engage only the longest transfer butts I 42 of the upper sliders.
sliders are transferred to the lower cylinder.
Study of Figure 3 will reveal that this action will by more elaborate control of the transfer, particularly when a plurality of yarns are being fed to the needles to produce plating, there can be produced quite elaborate designs. It will be understood, therefore. that the reference to 6 x 3 rib at this point and in connection with the further discussions of the .11!) areas is only 'for purposes of illustration and that there is possible great latitude of variation in the production of structural and design modifications.
Knitting underthe conditions just mentioned will continue until the point of change to the several rounds indicated at I2 preceding the knitting of the heel. At the point of change to these rounds. of knitting the upper transfer cam. H4 is moved inward to engage all of the transfer butts of the upper sliders, i. e., butts I42 and I44.
-The needles belonging to those upper sliders which carry the long transfer butts I42 will have already been transferred to the lower cylinder,
and accordingly the positioning of the transfer cam I I4 as just mentioned will result in the transfer of the needles engaged by the sliders having the shorter transfer butts I44. Thus as knitting. coengilnues plain fabric will be knit on all of the :1 es.
Following the formation of several courses at this point control is effected to begin the knitting of the heel. For this purpose, the cam I28 is Withdrawn and the cam I22 raised to engage the long knitting butts of the lower sliders By this action the needles engaged by the sliders having long knitting butts are raised to their inactive positions, the long butts rising above the level of earns 84 and 88 and below the lowering picker I00. At the same time, cam I04 is withdrawn from its active position so that the needles in the upper cylinder will also be inan inactive position so as not to engage the yarn, the knitting butts of their sliders moving along the race I05 below the various cams.
Reciprocation is now started and the raising pickers 96 and 88, which have been inactive, now engage and elevate the short butt needles one at a time at each end ofthe short butt series. The narrowing now continues forming the portion I8 of the heel pocket until there remain in action only those needles at the narrowest point of the heel.
The widening now-takes place to form the portion I8 of the heel pocket and is effected by permitting the lowering picker I00 to come into action. The lowering of the needles takes place in conventional fashion, two needles being-lowered -and one raised at each reciprocation on each end of the series of needles in action. Inasmuch as the cam I22 must be lowered out of its active position so that it will not raise long butt needles when they are later picked down into action, it
is convenient to provide that this cam I22 will be lowered at the same time as the lowering picker is rendered active.
The lowering of the short butt sliders and their needles now takes place for the formation of the by one by the same type of double lowering and single raising operations as was carried out on the short butt sliders. It is at this time that the lowering of the cam I22 becomes necessary, since otherwise it would raise immediately anylong butt slider which was picked down.
By reason of this action, there is provided a suture along the line 22 terminating at some point such as 24.
In the preferred form of this invention there is formed still another narrowed extension 26, which is provided by rendering the lowering picker IIlIl inactive so that needles corresponding to the long butt sliders are picked up one by one at each end of the series of active. needles resulting in a further narrowing. This narrowing may be continued if desired into the short butt series of sliders to produce the desired formation in front of the heel.
During the reciprocatory knitting justv described, sincemore than half the needles are rendered active for reciprocatory knitting, it is necessary to provide a sufliciently increased range of reciprocation to insure that proper knitting and picking will .take place. This is, of course, readily accomplished by increasing the throw of the conventional devices for imparting reciprocation to the cylinders.
With the completion of the portion 26 of the stocking, rotary knitting is again resumed to form the foot. To effect this the cam I20 is again moved into action to lower all of the long butt lower sliders and such short butt sliders as might have been raised in the event that the narrowing proceeded intothat series. As a result, knitting ,takes place in the foot in the same fashion as occurred in the formation of the rounds I2.
When the position of the toe is reached, there occurs narrowing through portion 36 and widen ing through portion 38 for the formation of the toe carried out in the fashion described for the formation of the heel. Following thisthere may be provided by the usual rotary knitting in obvious fashion the formation of the loopers rounds 40 at which stitching will take place to complete the stocking. Thus the stocking is completed with all of the needles in the lower cylinder ready for the knitting of the welt 2 of a succeeding stocking.
It will be obvious that a minor variation of the above may be used to form the type of foot illustrated in Hirner Patent 1,154,116, namely, a foot which does not have the narrowed gore '26. For the formation of such a foot it is, of course, only necessary to omit those operations which give rise to that gore and proceed with the forma-' tion of the foot immediately following the formation of the gore 26.
A third type of Hirner foot, illustrated in Figure I of Hirner Patent 1,549,307, is illustrated in Figure 4, from which its mode of formation will be readily apparent in view of the discussion of the machine operation advanced heretofore. The leg of this stocking is illustrated at I50 and is produced in the same fashion 'as the leg 6 of the modification of Figure 1. Likewise, the rounds I52 are produced in similar fashion. Some modification of the heel, however, is illustrated to produce a greater turn of the shape of the stocking at. the heel. This involves the formation of the pocket portion I59 by widening to the point I51. At this point the lowering picker I00 is rendered inoperative to produce narrowing to the point I58, followed by widening through the enthe portion IBI corresponding to 20 of Figure 1,
the widening taking place to.the point. l62. At this point, the long knitting butt series of sliders may be removed from action by therise of cam I22 which is immedately thereafter relowered..
Widening is thereupon resumed from the points I64 at the separation of the sole and: instep needles to produce a suture between I64 and I62 on each side. During this widening the portion I66 is formed, adding excess fabric at the bottom of the stocking and providing for the turn of the foot in. much the same fashion asthe narrowed gore'26, in the previous :modification. Following the completion of this widening operation and without subsequent jnarrowing, operations are.
performed to form the foot and therea-fter the operations are precisely the same as those in connection with the formation of Flgurel.
One of the most evidentmodificationsof the product and method will be the formation of more elaborate designs than those secured by the mere formation of ribs running through the leg. The 6 x 3 rib co.-'.struction has been described as typical and ,involves no transfers of needles except in the regions of demarcation between different portions of the stocking. However, needles may be transferred from course to course in the well known fashions to produce what amount to various areas of plain and rib stitches, i. e., concatenations of the loops which involve passage through previously formed loops of other loops in selective opposite directions. Such patterns are, of course, produced by more elaborate control of the transfer operations and are secured by suitable set-ups of the transfer butts on both the upper and lower sliders with corresponding controls of the transfer cams. For more elaborate control, it will be obvious that the sliders can be associated with jacks having butts at different levels cooperating with pattern controlling cams. Such designs as well as ribs of the type specifically disclosed are characterized by the selective reverse concatenation of the loops.
Such patterns can be produced while feeding a single yarn to the needles. In the case, however, of the feedingof several yarns plating and reverse plating will occur in well known fashion, normal plating occurring in those loops which are formed by the needles in the lower cylinder and reverse plating will occur in those loops formed by needles in the upper cylinder. Selective floating may also be secured in well known fashions to produce quite elaborate designs in the leg. Wrapping may, of course, be accomplished in conventional fashion.
In addition to such patterning in the leg,
the foot itself is susceptible of variations con-- sired the foot may be formed by knitting the heel and arch on needles controlled by short knitting butt sliders only, thereby avoiding the necessityfor increasing the stroke or throw of the needle cylinder. For example, by beginning knitting of the heel with all of the long butt sliders, and, say, ten of the short butt sliders-on either end elevated, twenty-eight needles m'ight be picked up, after which thirtyeight needles; or in other words, all of the needles controlled by short butt sliders may be picked down, following which ten of these may be again picked'up. However, this entails some reduction of the amount of fabric in the sole portion, which fabric contributes to the turn of the foot, and is, therefore, not so desirable as the modifications previously described. v
What I claim and desire to protect by Letters Patent is: I
1. A knitted stocking comprising integrally knitted leg, heel and foot portions with a gore formed by reciprocatory knitting located between the heel and foot portions and extending above the heel portion, said leg being provided with design structure comprising selectivelyfieversely concatenated loops.
2. A knitted stocking comprising integrally knitted leg, heel and foot portions with a gore formed by reciprocatory knitting located between the heel and foot portions and extending above the'heel portion, knitting wales extending continuously from the legportion into the instep part of the foot portion above saidgore, and said leg 1 being'provided with design structure comprising selectively reversely concatenated loops.
3. A knitted stocking comprising integrally knitted leg, heel and-foot portions with a gore formed by reciprocatory knitting located between the heel and foot portions and extending above the heel portion, knitting wales extending continuously from the leg portion into the instep part of the foot portion above said gore, and said leg being provided with longitudinally extending ribs.
4. The method of circularly knitting a stocking comprising knitting a leg portion by rotary knit ting while selectively reversely concatenating' loops to produce a'design structure, forming byrotary knitting at least one course of plain knitting at the end of the rdrifiition of the leg, forming a heel portion by reciprocatory knitting, forming a goreextending above the heel portion in front of the heel portion by reciprocatory knitting, during the reciprocatory knlttingfailing to interknit yarn withloop's formed during the last course of rotary knitting of the front ,of the 5. The method of circularly knitting a stocking .comprisingknitting a leg portion by rotary knitting while selectively reversely concatenating loops to produce a designstructure, forming by rotary knitting at, the end of the formation. of the leg at least one course containing plain knitting through at least the extent of the heel and a gore to be subsequently formed, forming a heel portion by reciprocatory knitting, forming a gore extending above the heel portion in front of the heel portion by reciprocatory knitting, during the reciprocatory knitting. failing to 'interknit yarn withloops formed duringthe last course of rotary knitting of the front of the stocking, and, following the completion of said gore, starting formation of a foot portion by co'ncatenating loops with those with which yarn was not interknit during the reciprocatory knitting.
6. The method of circularly knitting a stocking comprisingknitting a leg portion by rotary knitting while selectively reversely concatenating loops to produce a .rib structure, forming a heel portion by reciprocatory knitting, forming a gore extending above the heel portion in front of the heel portion by reciprocatory knitting, dur-. ing the reciprocatory knitting failing to interknit yarn with loops formed during the last course of rotary knitting of the front of the stocking, and, following'the completion of said gore, starting formation of 'a foot portion by concatenating loops with those with which yarn was not interknit during the reciprocatory knitting.
L. HOUSEMAN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US249524A US2170076A (en) | 1939-01-05 | 1939-01-05 | Stocking and method of making the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US249524A US2170076A (en) | 1939-01-05 | 1939-01-05 | Stocking and method of making the same |
Publications (1)
Publication Number | Publication Date |
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US2170076A true US2170076A (en) | 1939-08-22 |
Family
ID=22943842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US249524A Expired - Lifetime US2170076A (en) | 1939-01-05 | 1939-01-05 | Stocking and method of making the same |
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US (1) | US2170076A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2431204A (en) * | 1946-06-13 | 1947-11-18 | Scott & Williams Inc | Circular knit hosiery and method of making same |
US2608847A (en) * | 1951-08-06 | 1952-09-02 | Standard Hosiery Mills Inc | High-back heel structure for seamless hose and method |
US2648963A (en) * | 1947-08-08 | 1953-08-18 | Wildt & Co Ltd | Knitted ware and method of producing same |
US2714299A (en) * | 1954-05-13 | 1955-08-02 | Runnymede Mills Inc | Hosiery and a method of making the same |
US3143870A (en) * | 1963-10-21 | 1964-08-11 | May Hosiery Mills | Seamless sun sock |
-
1939
- 1939-01-05 US US249524A patent/US2170076A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2431204A (en) * | 1946-06-13 | 1947-11-18 | Scott & Williams Inc | Circular knit hosiery and method of making same |
US2648963A (en) * | 1947-08-08 | 1953-08-18 | Wildt & Co Ltd | Knitted ware and method of producing same |
US2608847A (en) * | 1951-08-06 | 1952-09-02 | Standard Hosiery Mills Inc | High-back heel structure for seamless hose and method |
US2714299A (en) * | 1954-05-13 | 1955-08-02 | Runnymede Mills Inc | Hosiery and a method of making the same |
US3143870A (en) * | 1963-10-21 | 1964-08-11 | May Hosiery Mills | Seamless sun sock |
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