US2241061A - Split suture attachment for fullfashioned knitting machines - Google Patents

Split suture attachment for fullfashioned knitting machines Download PDF

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US2241061A
US2241061A US228101A US22810138A US2241061A US 2241061 A US2241061 A US 2241061A US 228101 A US228101 A US 228101A US 22810138 A US22810138 A US 22810138A US 2241061 A US2241061 A US 2241061A
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carrier
attachment
rods
split
cam
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US228101A
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Frederick C Good
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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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B11/00—Straight-bar knitting machines with fixed needles

Definitions

  • I split knitted fabric resides in the formation of a plurality of separate and distinct fabric sections joined together at the wales in the process of knitting, the yarn of one section forming no part of the other sections except at the juncture between the respective sections.
  • These sections of fabric may be of equal thickness and different colors or quality; or they may be of different thickness and different colors; or of different thickness and the same color in either the same or a different quality of yarn.
  • the foot portion is formed of a central or instep fabric section knitted from relatively thin uniformly colored body yarn, and flanked on either side by the heel and sole fabric sections knitted from yarns of a heavier weight than, or of a color contrasting with, that of the body yarn.
  • the present invention therefore, has for one of its main objects the provision of an improved attachment devised to control the body yarn carriers in their respective movements for laying their yarns to knit the instep fabric section and effect their arrest at the proper time in relation to the movements of the carriers intended to lay their yarns for the knitting of the heel and sole fashioned knitting machines now in common use, without necessitating any material changes in the construction or operation thereof, said attachment being adapted for intimate association and cooperation with the various portions of such commonly used machines so that the function of the attachment is made to coact automatically with the working of the knitting machine.
  • the invention also contemplates the provision of attachment of the type mentioned controlled through the pattern chain, Coulier motions; *and slur bar of the knitting machine, whereby the operation of the attachment is made dependent upon the. function of said machine, thereby synchronizing the respective actions. of the related mechanisms for accomplishing, to the best advantage, the formation of two or more needle lapped split sutures on hosiery knitting machines equipped with an alternating threecarrier attachment.
  • Still another important object of the invention contemplates the provision'of a split suture fabric attachment having means capable of arresting any one of the plurality of body yarn carriers selectively controlled by the three-carrier mechanism and releasingly but positively engaging the selected carrier when coming to the end of the knitting machine to effect the automatic fabric sections, thus assuring the accurate lapcontrol of the carrier arresting and engaging means for its forward or reverse movements, thereby making it possible to control the laying of the yarns so that the split sutures may selectively be made to extend either inwardly or outwardly of the split fabric for the purpose of km parting to the stocking heel and sole any suitable or desired style or pattern.
  • the invention is characterized by the fact that the use of the attachment embodying the present invention is not limited to the formation of split suture fabrics, but may also be utilized advantageously V in making so-called Pointex or high splice heels in conjunction with three-carrier work.
  • Figure 1 is a face elevation of a stocking blank having its foot portion constructed in accordance with the invention.
  • Figure 2 illustrates, on a reduced scale, the completed stocking as made from the blank shown in Figure 1.
  • Figure 3 is a diagrammatic representation of the suture seam construction.
  • Figure 4 is an end elevation of the attachment as applied to the full-fashioned knitting machine.
  • Figure 5 is a rear elevation of the same.
  • Figure 6 is an enlarged detail in top plan of the actuating means of the carrier rod controlling mechanism.
  • Figure 7 is a rear elevation of the same.
  • Figures 8 to 11 inclusive are diagrammatic representations illustrating the sequence of operations of slur bar cams on the carrier rod control actuating mechanism.
  • Figure 12 is an enlarged section taken on line l2l2 of Figure 5.
  • Figure 13 is a detail in face elevation of a portion of the mechanism shown in Figure 12 with certain parts in section.
  • Figure 14 is a detail in side elevation illustrating the assembly of the actuating elements of the mechanism shown in Figures 12 and 13.
  • Figure 15 is a detail in face elevation illustrating certain elements shown in Figure 14 in operative position.
  • Figure 16 is a view similar to Figure 15 illustrating'certain other elements shown in Figure 14 in operative position.
  • Figure 17 is a detail in face elevation of still other elements shown in Figure 14.
  • Figure 18 is an enlarged detail illustrating a portion of the pattern cha'm mechanism.
  • FIG. 1 there is diagrammatically illustrated a full-fashioned stocking blank comprising the leg portion I, and the foot portion 2 having the instep fabric portion 3, heel fabric portion 4, sole fabric portion 5, and toe fabric portion 6.
  • the sheer leg and instep fabric portions I and 3 respectively are of the three-carrier ringless construction, that is, they are knitted from body yarns alternately fed from three cones so that no two consecutive courses of loops are knitted from. the same cone of yarn; and the high heel and sole fabric portions 4 and 5 are knitted from yarns different from the body yarns so that the foot portion 2 actually consists of three distinct fabric sections, that is, an intermediate fabric section and two side fabric sections, the inner selvedge I of each side fabric section having an overlapping interlooping connection with the adjacent selvedge 3 of the intermediate fabric to form, what is well known in the art as, a split seam suture I.
  • this invention is directed to an improved attachment capable of effectively controlling the body yarn carriers to lay the respective yarns for the attainment of a proper split suture in a stocking fabric of the construction above stated.
  • the reference character l0 designates the usual machine frame having the back beam l2, the center bed I4, and the supporting brackets l6.
  • the machine includes the main cam shaft l8 through which the various motions of the knitting machine receive their movements.
  • the Coulier motion (not shown) devised to impart a reciprocating movement to the slur bar 22 and to the ordinary friction rod 24 arranged for longitudinal sliding movement in the supporting brackets l6 and adapted to carry the well-known alternating three-carrier attachment for the selective operation of the carrier rods RI, R2, and R3 mounted for reciprocation in the carrier rod brackets 26 over the knitting sections (not shown) conveniently mounted about I the center bed l4.
  • a pair of relatively spaced paralleling upright supporting arms 30 having their intermediate portions formed with a bearing 32 rotatably supporting a control shaft 34.
  • a lever 36 having its free end connected to one extremity of a rod 38, the other extremity of which is connected to a hinged bracket 39 mounted upon the rear beam l2 as indicated at 39' and carrying a roller 40 disposed for riding engagement with a cam block 42 slidably mounted on a carriage 43' arranged for longitudinal reciprocating movement in a casting 44 secured to the back beam l2 of the machine frame In.
  • The'cam block 42 is provided with three surfaces a, b, and 0, respectively adapted to. cause the roller 40 to assume three different levels, thereby moving the lever 36 from a neutral position (the position A as shown by the full line in Figure 12 of the drawings) to either a lower'position (as shown by the dotted line at B) or to an elevated position (as indicated by the dotted line at c).
  • the cam block I is held in its various positions by means of a dog 46 pivoted as at 48 to the fixed casting 44 and having three stepped latch portions b, and 0' respectively disposed to engage the cam block 42 in the manner to be hereinafter explained.
  • the cam block may be brought back from its engagement with the latching portion 0' or b to its engagement with the latch portion a by means of a pull-back dog 58 pivoted, as at 68, to the carriage 43 for reciprocating movement therewith, and having a hook end 62 adapted to engage said cam block and carry the same along with the carriage for its reciprocating motion in the direction indicated by the arrow B.
  • Reciprocating motion is imparted to the carriage 43 by means of a cable 64 having one of its ends secured to said carriage, as shown at 65, and the other of its ends attached to the usual long rocker arm of the well known Coulier motion of the knitting machine.
  • the cable 64 may be kept taut and the carriage 43 maintained in proper relationship with its associated elements hereinbefore described by means of a, pulling weight 66 attached to one end of a cable 68, having its other end suitably connected to the carriage 43, as indicated at 69, and riding over a pulley I8 arranged upon the casting 44.
  • said dog is preferably provided with a laterally projecting ear II with which a pin 12 carried by an adjacent portion of the pull-back dog 58 is adapted to contact.
  • the casting 44 is also preferably provided with a pusher I4 traversing said casting so that one of its ends contacts said pull-back do'g while the otherof its ends protrudes below said casting for engagement with one branch of a bell crank lever I6 pivoted, as indicated at 18, to the under side of said casting, the other branch of the bell crank lever being connected to a cable 88 leading to a second bell crank lever 82 ( Figure 18) operatively associated with the pattern chain 84 carrying sets of low buttons 86 and high buttons 88.
  • the carrier control devices Adapted to be carried by the supporting arms 38 are the carrier control devices, designated in their entirety for convenience herein by the reference character 98 and88', one of said devices 88 being constructed to control the body yarn carrier rods RI, R2, and R3 at the right hand of the knitting machine, and the other of said devices 98' being constructed to control said carrier rods from the left hand of the machine. Since both devices are identical in construction and operation, only one has been shown completely in the drawings, and it is to be understood that the following description of the device shown likewise applies to the device omitted.
  • each supporting arm 38 Rigidly mounted, as at 9
  • the spindle 88 is adapted to be rotated by means of a pawl and ratchet mechanism I82 comprising a pair of relatively spaced toothed wheels I84 and I86 reqaectively mounted upon the extended end of said spindle and suitably fixed thereto.
  • the ratchet teeth of the wheel I 84 are positioned to extend in a direction opposite to the ratchet teeth of the wheel I 86 so that the spindle may be moved either in a clockwise or an anti-clockwise direction through a selective action of a double pawl I88.
  • the double pawl I88 consists of a pair of diametrically opposed fingers I I8 and I I2, one finger for each ratchet wheel, said fingers being pivoted together in tong-like fashion with the direction of arrow H for the operation of the ratchet.
  • the pawl fingers H0 or H2 is in engagement with its corresponding ratchet wheel, to actuate the same, the remaining finger is held out of engagement with its associated ratchet wheel.
  • a segment I26 of the disc I24 is formed to extend even with the teeth of said ratchet wheels to blank out the same for the purpose to be presently stated.
  • the disc I24 is connected by means 01' a link I28 to a lever I30 keyed, or otherwise suitably fixed, to the control-shaft 34 so that, upon movement of the latter, through actuation of the pattern chain mechanism already described, said disc is brought into three distinct positions, that is, the positions shown at A,
  • a spring pressed plunger I 32 disposed for engagement with a notched disc I34 rigidly mounted upon theshank I00 of the spindle 98.
  • a stop plate I adapted, when in operative position, to lay in the path of travel of the carrier stops SI, S2, and S3 respectively arranged upon the carrier rods'RI, R2, and R3. Because of this arrangement, it will be understood that the plate I 40 will move with the sleeve 94 during its motion in and out of the housing 92 accordingly causing the arrest of the carrier rods at different points in the course of their traversing stroke.
  • Such means comprise a resilient latch I42 supported upon the stop plate I46, as indicated at I44, the latch being disposed to engage the carrier rod stop and retain the same in snug engagement with the stop plate I40.
  • said mechanism When my improved mechanism is not to be used, as, for instance, during the knitting of the upper portion of the leg blank, said mechanism may be thrown out of operative position by manually rotating the sleeve to bring the stop plate I40 and its associated element out of the path of travel of the carrier stops, thereby allowing the carrier rods to travel their entire stroke.
  • the same is provided with a pair of slots I46 and I40 respectively cut at diametrically opposed points upon the outer peripherial surface of said sleeve to extend longitudinally throughout the length thereof. Said slots are disposed to engage a spring pressed pin I50 adapted to retain the sleeve in either of its adjusted positions without hindrance to the longitudinal movement thereof through actuation of the pawl and ratchet mechanism, in the manner hereinbefore stated.
  • the stocking blanks such as that shown in Figure 1 are started at the welt and knitted down to the point P in the usual well known manner, that is, the body yarn or main carrier rods RI R2, and R3 are selected through operation of the three-carrier tackle of the machine and alternately actuateqito lay their respective yarns, for the formation of the leg fabric portion I.
  • the split suture attachment embodying the present invention is placed and held in inoperative position in the manner hereinbefore stated so that the main carrier rods are free to reciprocate the full length 01' their stroke.
  • the machine Upon reaching the point P where the split fabric is to begin, the machine is stopped and the split suture attachment positioned for operation by placing the stop block I40 of each of the carrier control devices and 90' in the path of the carrier stops SI, S2, and $3, the main carriers being adjusted so that said stops are disposed between the stop blocks whereby the reciprocating movement of the main carrier rods is limited to lay their yarns over a certain number of intermediate knitting needles for the formation of the intermediate section of the split fabric portion.
  • additional carriers threaded with yarn di'fierent from the body yarn, are brought into play and adjusted for operation over the end needles to knit the side fabric sections of said split fabric portion, it being understood that the operation and control of said additional carrier rods may be performed through the ordinary splicing or like mechanism usually present on full-fashioned knitting machines.
  • the knitting is carried on and, through the function 0! the various parts, the split fabric is produced.
  • the control of the different carrier rods be such that the different yarns in each I course overlay the distance of two needles at the respective selvedges I and l of the intermediate portion and adjacent side portions of the split fabric, although it is to be understood that the yarns may be caused to overlap over a greater number of needles by a mere adjustment of the carrier rod controlling devices, such adjustment being well known to those skilled in the art.
  • my improved device is capable of producing a split fabric of any desirable shape or pattern. This is accomplished by a selective planned arrangement of the low buttons 20 and high buttons 80 on the pattern chain 84, respectively adapted to cause the two controlling devices and 80 to move so that their respective stop blocks I40 are displaced towards and away from each other, that is, inwardly and outwardly of the fabric, in the manner hereinbefore stated, thereby shortening or lengthening the stroke of the carrier rods.
  • the bell crank lever 02 rides over a portion of the pattern chain 04 devoid of buttons, the control devices remain in inoperative position so that the split suture 9 assumes a straight line formation extending walewise of the fabric.
  • the split suture assumes a broken line formation stepping inwardly of the fabric, as indicated at I52 and when the bell crank lever 02 is displaced by the high buttons 80 to set controlling devices in motion away from each other, then the split suture assumes a broken line 7 formation stepping outwardly of the fabric, as indicated at I54.
  • the distance travelled by the controlling devices in their in and out motions is equal to the distance of two needles and, for that purpose, the distance between the teeth of the ratchet wheels I 04 and I06 is equal to the distance of two needles but, obviously, the travelling distance of said control devices may be varied by utilizing ratchet wheels having their teeth as the control device at the left hand ofthe machine is adapted to operate with the laying of a yarn from the left to the right of the machine.
  • the cam I22 on the slur bar 22 is made in two parts H211 and H21: respectively having camming faces HM and I23b facing each other but relatively spaced from one another.
  • the relative adjustment and spacing of the cam parts I22a and I22b are such that when the slur bar 22 is at the extreme right of its reciprocating movement, the lever end portion I20 provided, inthe manner hereinbefore stated, for the operation of the right hand control device 90, becomes located between the camming faces I23a and I23b, thus setting the pawl and ratchet mechanism I02 ready for operation, while the lever end portion I20, intended for the operation of the left hand control device 90', is in engagement with the camming face I23b ( Figure 8).
  • the lever end portion I20 of the left hand control device rides on the camming face I22b of the cam part I22b and falls between the latter and the camming face I230 of the cam part I220, as represented in Figure 10, thereby preparing the ratchetmechanism of the left hand control device 90' for its operation.
  • the resetting of the attachment may be done automatically, by providing the pattern chain 84 with the required number of buttons disposed to act upon the bell crank lever 82 in the'same manner as hereinbefore described to actuate the control devices 90 and 90' when in inoperative position during the function of the machine to knit the leg portion of the stocking blanks above the point P thereof, so that said control devices will be brought to their initial location and there stand ready to be turned to operative position by the time knitting of the stocking blanks has reached said point P.
  • a carrier arresting mechanism In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a carrier arresting mechanism; means carried by the slur bar to reciprocate therewith,andactinguponsaid mechanism to actuate the same for arresting the selectively operated carrier rods at various points in the course of their traversing stroke; and
  • a split suture attachment comprising a. carrier rod stop supporting member movable longitudinally of the machine to cause the arrest of the carrier rods at various points in the course of their traversing stroke; a rotatable element in screw threaded engagement with said member to impart its longitudinal movement; means between said element and the slur bar and adapted to be actuated by the reciprocation or the latter for operating said element; and a mechanism connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said means.
  • a split suture attachment comprising a carrier rod stop supporting member movable longitudinally of the machine to cause the arrest of the carrier rods at various'points in the course of their traversing stroke; a rotatable element in screw threaded engagement withsaid member to impart its longitudinal movement; a ratchet mechanism associated with said element to rotate the latter; a cam carried by the slur bar and disposed for cooperation with said ratchet mechanism to actuate the same through the reciprocation of the slur bar; and a mechanism connected to the pattern chain and Coulier motion and operated thereby controlling the ratchet mechanism in its actuation by the slur bar carried cam.
  • a split suture attachment comprising a carrier rod control device arranged upon the machine for arresting the selected carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for arresting the selected carrier rods at the left hand side of their traversing stroke; means associated with each of said devices for operating the same to arrest said carrier rods at various points in the course of their stroke; means carried by the slur bar to reciprocate therewith and alternatively acting on the means associated with each of said control devices for the alternate operation thereof; and means connected to thepattem chain and Coulier motion and operated thereby for controlling the actuation of the first mentioned means by said slur bar carried means.
  • a split suture attachment comprising a carrier rod controlling device arranged upon the machine for arresting the carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for arresting the carrier rods at the left hand side of their traversing stroke; a mechanism associated with'each of said devices for operating the same to arrest the carrier rods at various points in the course of their stroke; a reciprocating cam consisting of two parts, one of said parts being disposed to act on the operating mechanism of one of said devices with the reciprocation of the cam in one direction, and the other of said parts being disposed to act on the operating mechanism of the other of said devices with the reciprocation of the cam in the other direction, whereby during the traversing movement of a selected carrier rod for the formation of one course, the carrier rod left at one side of the machine to be selected for subsequent traversing movement for the
  • a split suture attachment comprising a carrier rod controlling devicearranged upon the machine for arresting the carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for armachine to be selected for subsequent traversing movement for the formation of the second following course may be brought in position for its selection prior to its actual traversing movement for the formation of such second following course.
  • a split suture attachment comprising a carrier rod controlling device arranged upon the machine for arresting the selected carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for arresting the selected carrier.rods at the left hand side of their traversing stroke; a mechanism associated with each of said devices for operating the same to arrest the carrier rods at various points in the course of their stroke; a cam carried by the slur bar to reciprocate therewith and consisting of two parts, one of said parts being disposed to act on the operating mechanism of one of said devices with the reciprocation of the slur bar in one direction, and the other of said parts being disposed to act on the operating mechanism of the other of said devices with the reciprocation of the slur bar in the other direction; and means connected to the pattern chain and Coulier
  • a split suture attachment comprising a carrier rod control device arranged upon the machine for arresting the selected carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for arresting the selected carrier rods at the left hand side of their traversing stroke; a ratchet mechanism associated with each of said devices for operating the same to arrest said carrier rods at various points in the course of their right and course of their stroke; a cam carried by the slur bar to reciprocate therewith and consisting of two parts, one of said cam parts being disposed to act on the operating mechanism of the right hand side control device with the reciprocation of the slur bar from right to left, and the other of said cam parts being disposed to act on the operating mechanism of the left hand side control device with reciprocation of the slur bar from left to right, whereby during
  • a carrier arresting mechanism carried by the slur bar to reciprocate therewith and acting on said mechanism to actuate the same for arresting the selectively operated carrier rods at varside and at the left hand side of their traversing stroke; a ratchet mechanism associated with each of said devices for operating the same to arrest said carrier rods at various points in the course of their stroke; camming means carried by the slur bar to reciprocate therewith and'acting on the ratchet mechanisms to actuate the same alternatively for the alternate operation of said devices; a cam slidably supported on the machine and functioning to act on said ratchet mechanisms for controlling the actuation thereof by said camming means; and means connected to the pattern chain and Coulier motion for slid- '7 ing said cam to perform its function.
  • a carrier arresting mechanism adjustably mounted for placement in active and inactive position; means carried by the slur bar to reciprocate therewith, and acting upon said mechanism to actuate the same for arresting the selectively operated carrier rods at various points in the course of their traversing stroke; means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said mechanism by said slur bar carried means; and means associated with said mechanism to reset the same when in inactive position.
  • a carrier arresting mechanism adjustably mountedfor placement in active and inactive position; means carried by the slur bar to reciprocate therewith, and acting upon said mechanism to actuate the same for arresting the selectively operated car-.
  • rier rods at various points in the course of their traversing stroke; means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said mechanism by said slur bar carried means; and means arranged upon the pattern chain and disposed'for action on said mechanism when in inactive position to reset the same automatically.
  • a split sutureattachment comprising a carrier rod control device arranged upon the machine for arresting the selected can'ier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for arresting the selected carrier rods at the left hand side of their traversing stroke; a ratchet mechanism associated with each of said devices for operating the same to arrest said carrier rods at various points in the course of their right and left hand strokes; a cam carried by the slur bar to reciprocate therewith and consisting of two parts, one of said parts being disposed to act on the ratchet mechanism of one of said devices with the reciprocation of the slur.
  • a split suture attachment comprising a carrier rod control device arranged upon the machine for placement from inactive to active position for arresting the selected carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for placement from inactive to active position for arresting the selected carrier rods at the left hand side of their traversing stroke; a ratchet mechanism associated with each of said, devices for operating the same to arrest said carrier rods at various points in the course of their right and left hand strokes; a cam carried by the slur bar to reciprocate therewith and consisting of two parts, one of said parts being disposed to act on the ratchet mechanism of one of said devices with the reciprocation of the slur bar in one direction, and the other of said parts being disposed to act on the ratchet mechanism of the other of
  • a carrier arresting mechanism In combination with the traversing carrier rods, reciprocating slur bar, pattern chain, and rocker arm of the Coulier motion of a fullfashioned knitting machine: a carrier arresting mechanism; means carried by the slur bar to reciprocate therewith, and acting upon said mechanism to actuate the same-for its carrier arresting function; and a control mechanism associated with the pattern chain to be governed thereby and connected to the rocker arm of the Coulier motion to be operated thereby for controlling the actuation of said carrier arresting mechanism by said slur bar carrying means.
  • a carrier arresting mechanism In combination with the traversing carrier rods, reciprocating slur bar, pattern chain, and rocker arm of the Coulier motion of a fullfashioned knitting machine: a carrier arresting mechanism; means carried by the slur bar to reciprocate therewith, and acting upon said mechanism to actuate the same for its carrier arresting function; a control mechanism associated with the pattern chain to be governed thereby and connected to the rocker arm of the Coulier motion to be operated thereby for controlling the actuation of said carrier arresting mechanism by said slur bar carrying means, said control mechanism including a link and lever system associated with the carrier arresting mechanism, a cam slidably movable to adjust said system and displaceable to vary its adjusting function, means establishing a connection between the rocker arm and said cam to slidably move the latter, means normally acting on said cam to displace the same, latch means engaging said cam to hold the same against the normal action of the last mentioned means. and means under control of the pattern chain for releasing said latch means.
  • split suture attachment comprising a carrier rod control device arranged upon the machine for for bringing the carrier rods to be selected in position for their selection prior to the actual traversing movements thereof.

Description

May 6, 1941. v c, 5000 2,241,061
SPLIT SUTURE ATTACHMENT FOR FULL-FASHIONED KNITTING MACHINES Filed Sept. 2, 1938 7 Sheets-Sheet 1 I I O O Q Q 9 I umygzzi'm' mwmmu,
INVENTOR.
ATTORNEY.
May 6, 1 F. c. GOOD SPLIT SUTURE ATTACHMENT FOR FpLL-FASHIQNED KNITTING MACHINES Filed Sept 2,-"-1 958 1 7 Sheets-Sheet 2 INVENTOR. Wfdf/ZC/ C: 600d- ATTORNEY.
y F. c. GOOD 2,241,061
SPLIT SUTURE ATTACHMENT FOR FULL-FASHIONED KNITTING MACHINES 4 Filed Sept. 2, 1938 7 Sheets-Sheet 3 m LONG MCI/2141? I NVENT OR ATTORNEY.
F. C. GOOD May 6, 1941.
SPLIT SUTURE ATTACHMENT FOR FULL-FASHIONED KNITTING MACHINES Filed Sept. 2, 1958 7 Sheets-Sheet 4 INVENTOR 12" L- 6090 ;i A'I'I 'ORNEY.
BXJ/Zf dew May 6, 1941. c, (5000 2,241,061
SPLIT SUTURE ATTACHMENT FOR FULL-FASHIONED KNITTING MACHINES Filed Sept. 2,. 1938 7 Sheets-Sheet 6 INVENTOR.
j l fideric (I 600d.
ATTORNEY.
F. C. GOOD May 6, 1941.
SPLIT SUTURE ATTACHMENT FOR FULL-FASHIONED KNITTING MACHINES Filed Sept. 2, 1938 7 Sheets-Sheet 7 INVENTOR. jl'f derz'cf 6'. 00 07 ATTORNEY.
Patented May 6, 1941 SPLIT SU'I'URE ATTACHMENT FOR FULL- FASHIONED KNITTING MACHINES Frederick 0. Good, Philadelphia, Pa.
Application September 2, 1938, Serial No. 228,101
(01. ce-m) 21 Claims.
I split knitted fabric resides in the formation of a plurality of separate and distinct fabric sections joined together at the wales in the process of knitting, the yarn of one section forming no part of the other sections except at the juncture between the respective sections. These sections of fabric may be of equal thickness and different colors or quality; or they may be of different thickness and different colors; or of different thickness and the same color in either the same or a different quality of yarn.
In the manufacture of full-fashioned hosiery, split knitting is usually employed in the construction of the foot'portion when it is desired to produce heel and sole areas having an increased wearing quality or a marked contrast with the adjoining portions of the stocking. For these purposes, the foot portion is formed of a central or instep fabric section knitted from relatively thin uniformly colored body yarn, and flanked on either side by the heel and sole fabric sections knitted from yarns of a heavier weight than, or of a color contrasting with, that of the body yarn.
With so-called three-carrier work, considerable difiiculties have heretofore been encountered in producing a proper suture between the adjoining instep and heel and sole fabric sections,
primarily due to the provision of the plurality of body yarn carriers alternately operated to lay their respective body yarns in repeated sequence throughout the sheer instep fabric section of the stocking foot portion.
The present invention, therefore, has for one of its main objects the provision of an improved attachment devised to control the body yarn carriers in their respective movements for laying their yarns to knit the instep fabric section and effect their arrest at the proper time in relation to the movements of the carriers intended to lay their yarns for the knitting of the heel and sole fashioned knitting machines now in common use, without necessitating any material changes in the construction or operation thereof, said attachment being adapted for intimate association and cooperation with the various portions of such commonly used machines so that the function of the attachment is made to coact automatically with the working of the knitting machine.
The invention also contemplates the provision of attachment of the type mentioned controlled through the pattern chain, Coulier motions; *and slur bar of the knitting machine, whereby the operation of the attachment is made dependent upon the. function of said machine, thereby synchronizing the respective actions. of the related mechanisms for accomplishing, to the best advantage, the formation of two or more needle lapped split sutures on hosiery knitting machines equipped with an alternating threecarrier attachment. I
Still another important object of the invention contemplates the provision'of a split suture fabric attachment having means capable of arresting any one of the plurality of body yarn carriers selectively controlled by the three-carrier mechanism and releasingly but positively engaging the selected carrier when coming to the end of the knitting machine to effect the automatic fabric sections, thus assuring the accurate lapcontrol of the carrier arresting and engaging means for its forward or reverse movements, thereby making it possible to control the laying of the yarns so that the split sutures may selectively be made to extend either inwardly or outwardly of the split fabric for the purpose of km parting to the stocking heel and sole any suitable or desired style or pattern.
It is also a distinguishing feature of the present invention to provide a split suture fabric attachment having a pair of body yarn carrier rod controlling devices, one of said devices being adapted to control the carrier rods from the right side and the other of said devices being adapted to control the carrier rods from the left side of the knitting machine, and means associated with both devices to operate the same alternately whereby to eliminate the formation of extra long loops ordinarily apparent in split suture fabrics produced with attachments heretofore commonly in use.
Moreover, the invention is characterized by the fact that the use of the attachment embodying the present invention is not limited to the formation of split suture fabrics, but may also be utilized advantageously V in making so-called Pointex or high splice heels in conjunction with three-carrier work.
Other important objects and advantages of the invention will be in part obvious and in part pointed out hereinafter.
In order that the invention and its mode of operation may be readily understood by those skilled in the art, I have, in the accompanying drawings and in the detailed description based thereupon, set out a possible embodiment of the.
invention.
In these drawings:
Figure 1 is a face elevation of a stocking blank having its foot portion constructed in accordance with the invention.
Figure 2 illustrates, on a reduced scale, the completed stocking as made from the blank shown in Figure 1.
Figure 3 is a diagrammatic representation of the suture seam construction.
Figure 4 is an end elevation of the attachment as applied to the full-fashioned knitting machine.
Figure 5 is a rear elevation of the same. t
Figure 6 is an enlarged detail in top plan of the actuating means of the carrier rod controlling mechanism.
Figure 7 is a rear elevation of the same.
Figures 8 to 11 inclusive are diagrammatic representations illustrating the sequence of operations of slur bar cams on the carrier rod control actuating mechanism.
Figure 12 is an enlarged section taken on line l2l2 of Figure 5.
Figure 13 is a detail in face elevation of a portion of the mechanism shown in Figure 12 with certain parts in section.
Figure 14 is a detail in side elevation illustrating the assembly of the actuating elements of the mechanism shown in Figures 12 and 13.
Figure 15 is a detail in face elevation illustrating certain elements shown in Figure 14 in operative position.
Figure 16 is a view similar to Figure 15 illustrating'certain other elements shown in Figure 14 in operative position.
Figure 17 is a detail in face elevation of still other elements shown in Figure 14.
Figure 18 is an enlarged detail illustrating a portion of the pattern cha'm mechanism.
With more particular reference to the drawings, wherein like characters of reference will designate corresponding parts throughout, there are shown but those parts of a full-fashioned hosiery knitting machine which are essential to the clear understanding of the invention, the basic construction and operation of the knitting machine itself being that of the usual standard machine well known in the art.
Referring particularly to Figure 1, there is diagrammatically illustrated a full-fashioned stocking blank comprising the leg portion I, and the foot portion 2 having the instep fabric portion 3, heel fabric portion 4, sole fabric portion 5, and toe fabric portion 6.
In accordance with the invention, the sheer leg and instep fabric portions I and 3 respectively are of the three-carrier ringless construction, that is, they are knitted from body yarns alternately fed from three cones so that no two consecutive courses of loops are knitted from. the same cone of yarn; and the high heel and sole fabric portions 4 and 5 are knitted from yarns different from the body yarns so that the foot portion 2 actually consists of three distinct fabric sections, that is, an intermediate fabric section and two side fabric sections, the inner selvedge I of each side fabric section having an overlapping interlooping connection with the adjacent selvedge 3 of the intermediate fabric to form, what is well known in the art as, a split seam suture I.
As hereinbefore stated, this invention is directed to an improved attachment capable of effectively controlling the body yarn carriers to lay the respective yarns for the attainment of a proper split suture in a stocking fabric of the construction above stated. In the drawings illustrating the improved att chment and its association and cooperation wit a full-fashioned knitting machine, the reference character l0 designates the usual machine frame having the back beam l2, the center bed I4, and the supporting brackets l6. Of course, the machine includes the main cam shaft l8 through which the various motions of the knitting machine receive their movements.
Associated, in the usual way, with the main cam shaft I8 is the Coulier motion (not shown) devised to impart a reciprocating movement to the slur bar 22 and to the ordinary friction rod 24 arranged for longitudinal sliding movement in the supporting brackets l6 and adapted to carry the well-known alternating three-carrier attachment for the selective operation of the carrier rods RI, R2, and R3 mounted for reciprocation in the carrier rod brackets 26 over the knitting sections (not shown) conveniently mounted about I the center bed l4. As well understood by those machine frame It), as indicated at 28, is a pair of relatively spaced paralleling upright supporting arms 30 having their intermediate portions formed with a bearing 32 rotatably supporting a control shaft 34. For the sake of clarity in the drawings, there has been shown but one of such arms, it being understood that the other arm is identical to the one herein illustrated. Keyed,
or otherwise secured, upon the shaft 3| is a lever 36 having its free end connected to one extremity of a rod 38, the other extremity of which is connected to a hinged bracket 39 mounted upon the rear beam l2 as indicated at 39' and carrying a roller 40 disposed for riding engagement with a cam block 42 slidably mounted on a carriage 43' arranged for longitudinal reciprocating movement in a casting 44 secured to the back beam l2 of the machine frame In.
Positive contact of the roller 40 with the cam block 42 is assured by the action of a spring 45 having one end connected to the supporting arm 30 and its other end connected-to the lever 36.
The'cam block 42 is provided with three surfaces a, b, and 0, respectively adapted to. cause the roller 40 to assume three different levels, thereby moving the lever 36 from a neutral position (the position A as shown by the full line in Figure 12 of the drawings) to either a lower'position (as shown by the dotted line at B) or to an elevated position (as indicated by the dotted line at c). The cam block I: is held in its various positions by means of a dog 46 pivoted as at 48 to the fixed casting 44 and having three stepped latch portions b, and 0' respectively disposed to engage the cam block 42 in the manner to be hereinafter explained.
Proper engagement between the cam block 42 and dog 46 is assured by means of a spring 68 normally urging the latching portions of said dog for positive engagement with the cam block. Sliding movement in the direction indicated by the arrow D is imparted to the cam block to bring the same in engagement with either latching portion 11' or c by means of a weight 52 attached to one end of a cable 54 having its other end connected to the cam block, as indicated at 66, and riding over a pulley 56 rotatably supported on the fixed casting 44. The cam block may be brought back from its engagement with the latching portion 0' or b to its engagement with the latch portion a by means of a pull-back dog 58 pivoted, as at 68, to the carriage 43 for reciprocating movement therewith, and having a hook end 62 adapted to engage said cam block and carry the same along with the carriage for its reciprocating motion in the direction indicated by the arrow B.
Reciprocating motion is imparted to the carriage 43 by means of a cable 64 having one of its ends secured to said carriage, as shown at 65, and the other of its ends attached to the usual long rocker arm of the well known Coulier motion of the knitting machine. The cable 64 may be kept taut and the carriage 43 maintained in proper relationship with its associated elements hereinbefore described by means of a, pulling weight 66 attached to one end of a cable 68, having its other end suitably connected to the carriage 43, as indicated at 69, and riding over a pulley I8 arranged upon the casting 44.
Ini order to effect the disengagement of the holding dog 46 from the-cam block 42 so that the latter may move from one position to another, said dog is preferably provided with a laterally projecting ear II with which a pin 12 carried by an adjacent portion of the pull-back dog 58 is adapted to contact. The casting 44 is also preferably provided with a pusher I4 traversing said casting so that one of its ends contacts said pull-back do'g while the otherof its ends protrudes below said casting for engagement with one branch of a bell crank lever I6 pivoted, as indicated at 18, to the under side of said casting, the other branch of the bell crank lever being connected to a cable 88 leading to a second bell crank lever 82 (Figure 18) operatively associated with the pattern chain 84 carrying sets of low buttons 86 and high buttons 88.
From the description of the mechanism so far described, and assuming that the relative parts are in the neutral position, it will be understood that during the working of the knitting machine, the carriage 43 together with the pull-back dog 58 constantly reciprocate since they follow the rocking motion of the long rocker arm by reason of the cable connection 64 and pulling weight 66. However, because of the engagement of the I latching portion a of the holding dog 46 with the cam block 42, the latter is held in such a position that the roller 48 remains in contact with the surface a of said cam block and, accordingly, maintains the control shaft 34 and lever 36 in the neutral position A. This neutral position is maintained as long as no button, through the function of the pattern chain 84, is brought into engagement with the associated bell crank lever 82. When a low button 86 comes in contact with said bell crank lever 82, said lever is moved to exert a pull on the cable 88 and on the bell crank lever 16 thereby forcing the pusher l4 upwardly and, accordingly, lifting the pull-back dog 88 and holding dog 46 high enough to allow the cam block to clear the latching portion a and slide to the point where it comes in contact with the latching portion 2). In this position of the cam block, the surface b thereof is brought in alignment with the roller 48, therefore causing the lever 86 and control shaft 34 to assume the position B. I
When a high button 88 comes in contact with the bell crank lever 82, the same action as above described takes place, except that the lifting of the pull-back and holding dogs is sufilcient to permit the cam block to pass beyond the latching portion 1) and slide to that point bringing the block in engagement with the latching portion 0'. In this latter position, the surface 0 of the cam block is caused to become aligned with the roller 48' and, therefore, raises the rod 88 to place the lever 36 and control shaft 34 in .position C.
carrier rod controlling mechanism which will now be described.
Adapted to be carried by the supporting arms 38 are the carrier control devices, designated in their entirety for convenience herein by the reference character 98 and88', one of said devices 88 being constructed to control the body yarn carrier rods RI, R2, and R3 at the right hand of the knitting machine, and the other of said devices 98' being constructed to control said carrier rods from the left hand of the machine. Since both devices are identical in construction and operation, only one has been shown completely in the drawings, and it is to be understood that the following description of the device shown likewise applies to the device omitted.
Rigidly mounted, as at 9|, upon the upper extremity of each supporting arm 38 is a housing 82 enclosing a rotatable sleeve 34 slightly projecting out of one end of the housing and having its inner peripherial surface formed with a screwthread 86 for cooperation with a screw-threaded spindle 88 received within the sleeve and provided with a shank portion I88 extending beyond the inner end of said sleeve and out of the other end of the housing 92. The spindle 88 is adapted to be rotated by means of a pawl and ratchet mechanism I82 comprising a pair of relatively spaced toothed wheels I84 and I86 reqaectively mounted upon the extended end of said spindle and suitably fixed thereto. The ratchet teeth of the wheel I 84 are positioned to extend in a direction opposite to the ratchet teeth of the wheel I 86 so that the spindle may be moved either in a clockwise or an anti-clockwise direction through a selective action of a double pawl I88. As shown, the double pawl I88 consists of a pair of diametrically opposed fingers I I8 and I I2, one finger for each ratchet wheel, said fingers being pivoted together in tong-like fashion with the direction of arrow H for the operation of the ratchet. Of course, while one of the pawl fingers H0 or H2 is in engagement with its corresponding ratchet wheel, to actuate the same, the remaining finger is held out of engagement with its associated ratchet wheel. For that purpose,
there is provided a disc I24 freely mounted upon the extended shank I00 of the spindle 98 between the spaced ratchet wheels I04 and I06.
A segment I26 of the disc I24 is formed to extend even with the teeth of said ratchet wheels to blank out the same for the purpose to be presently stated. The disc I24 is connected by means 01' a link I28 to a lever I30 keyed, or otherwise suitably fixed, to the control-shaft 34 so that, upon movement of the latter, through actuation of the pattern chain mechanism already described, said disc is brought into three distinct positions, that is, the positions shown at A,
B, and C in Figure 12, and individually represented in Figures 14, 15, and 16, respectively.
When in position A, the disc blanks out the teeth of both ratchet wheels I04 and I06 adjacent the pawl fingers H0 and H2. In this manner, and as will more clearly appear from Figure 12, the fingers are lifted out of engagement with the ratchet wheels, accordingly rendering the ratchet mechanism inoperative.
Upon movement of the disc to the position C, that is, the position fully represented in Figure 15, the segment I26 of said disc, while blanking out the teeth of the ratchet wheel I06, will uncover the teeth of the ratchet wheel I04, thus permitting the pawl finger I I0 to engage the latter, turning the ratchet mechanism clockwise, accordingly rotating the spindle 98 and causing the sleeve 94 to move outwardly of the housing 92;
When the segment I26 is moved to the position B, that is, the position fully illustrated in Figure 16, then the segment I26 of the disc I24 blanks out the teeth of the ratchet wheel I04 while uncovering the teeth of the ratchet wheel I06. In this position, the pawl finger H0 is thrown out of engagement with the teeth of the ratchet wheel I04 and the pawl finger II2 allowed to fall into engagement with the teeth of the ratchet wheel I06 so that, upon actuation of the pawl, the ratchet is caused to move in an anti-clockwise direction, thereby rotating the spindle 96 and consequently moving the sleeve 94 inwardly of the housing 92'.
In order to prevent accidental movement of the ratchet mechanism, there is provided a spring pressed plunger I 32 disposed for engagement with a notched disc I34 rigidly mounted upon theshank I00 of the spindle 98.
Rigid with that end of the sleeve portion projecting out of the bearing 92 is a stop plate I adapted, when in operative position, to lay in the path of travel of the carrier stops SI, S2, and S3 respectively arranged upon the carrier rods'RI, R2, and R3. Because of this arrangement, it will be understood that the plate I 40 will move with the sleeve 94 during its motion in and out of the housing 92 accordingly causing the arrest of the carrier rods at different points in the course of their traversing stroke.
Since my improved mechanism is particularly intended for use in connection with three-carrier attachments, means are provided to lock the carrier rods when arrested in their traversing stroke and during the yarn laying movement of another carrier rod. As illustrated in the drawings, Such means comprise a resilient latch I42 supported upon the stop plate I46, as indicated at I44, the latch being disposed to engage the carrier rod stop and retain the same in snug engagement with the stop plate I40.
When my improved mechanism is not to be used, as, for instance, during the knitting of the upper portion of the leg blank, said mechanism may be thrown out of operative position by manually rotating the sleeve to bring the stop plate I40 and its associated element out of the path of travel of the carrier stops, thereby allowing the carrier rods to travel their entire stroke.
In order to prevent accidental rotating movements of the rotatable sleeve 94, the same is provided with a pair of slots I46 and I40 respectively cut at diametrically opposed points upon the outer peripherial surface of said sleeve to extend longitudinally throughout the length thereof. Said slots are disposed to engage a spring pressed pin I50 adapted to retain the sleeve in either of its adjusted positions without hindrance to the longitudinal movement thereof through actuation of the pawl and ratchet mechanism, in the manner hereinbefore stated.
In manufacturing stockings upon a knitting machine equipped with my improved attachment, the stocking blanks, such as that shown in Figure 1, are started at the welt and knitted down to the point P in the usual well known manner, that is, the body yarn or main carrier rods RI R2, and R3 are selected through operation of the three-carrier tackle of the machine and alternately actuateqito lay their respective yarns, for the formation of the leg fabric portion I. During the knitting of said leg portion down to the point P, the split suture attachment embodying the present invention is placed and held in inoperative position in the manner hereinbefore stated so that the main carrier rods are free to reciprocate the full length 01' their stroke.
Upon reaching the point P where the split fabric is to begin, the machine is stopped and the split suture attachment positioned for operation by placing the stop block I40 of each of the carrier control devices and 90' in the path of the carrier stops SI, S2, and $3, the main carriers being adjusted so that said stops are disposed between the stop blocks whereby the reciprocating movement of the main carrier rods is limited to lay their yarns over a certain number of intermediate knitting needles for the formation of the intermediate section of the split fabric portion. At the same time, additional carriers, threaded with yarn di'fierent from the body yarn, are brought into play and adjusted for operation over the end needles to knit the side fabric sections of said split fabric portion, it being understood that the operation and control of said additional carrier rods may be performed through the ordinary splicing or like mechanism usually present on full-fashioned knitting machines.
With the knitting machine adjusted in the manner stated, the knitting is carried on and, through the function 0! the various parts, the split fabric is produced. In practice, it is preferable that the control of the different carrier rods be such that the different yarns in each I course overlay the distance of two needles at the respective selvedges I and l of the intermediate portion and adjacent side portions of the split fabric, although it is to be understood that the yarns may be caused to overlap over a greater number of needles by a mere adjustment of the carrier rod controlling devices, such adjustment being well known to those skilled in the art.
As hereinbefore stated, my improved device is capable of producing a split fabric of any desirable shape or pattern. This is accomplished by a selective planned arrangement of the low buttons 20 and high buttons 80 on the pattern chain 84, respectively adapted to cause the two controlling devices and 80 to move so that their respective stop blocks I40 are displaced towards and away from each other, that is, inwardly and outwardly of the fabric, in the manner hereinbefore stated, thereby shortening or lengthening the stroke of the carrier rods. Thus, while the bell crank lever 02 rides over a portion of the pattern chain 04 devoid of buttons, the control devices remain in inoperative position so that the split suture 9 assumes a straight line formation extending walewise of the fabric. However, when the bell crank lever is displaced by the low buttons 06 to set the control devices 90 and 90' in motion towards each other, then the split suture assumes a broken line formation stepping inwardly of the fabric, as indicated at I52 and when the bell crank lever 02 is displaced by the high buttons 80 to set controlling devices in motion away from each other, then the split suture assumes a broken line 7 formation stepping outwardly of the fabric, as indicated at I54.
Preferably, the distance travelled by the controlling devices in their in and out motions is equal to the distance of two needles and, for that purpose, the distance between the teeth of the ratchet wheels I 04 and I06 is equal to the distance of two needles but, obviously, the travelling distance of said control devices may be varied by utilizing ratchet wheels having their teeth as the control device at the left hand ofthe machine is adapted to operate with the laying of a yarn from the left to the right of the machine. For that purpose, and as will more clearly appear from Figures 8 to 11 inclusive, the cam I22 on the slur bar 22 is made in two parts H211 and H21: respectively having camming faces HM and I23b facing each other but relatively spaced from one another. The relative adjustment and spacing of the cam parts I22a and I22b are such that when the slur bar 22 is at the extreme right of its reciprocating movement, the lever end portion I20 provided, inthe manner hereinbefore stated, for the operation of the right hand control device 90, becomes located between the camming faces I23a and I23b, thus setting the pawl and ratchet mechanism I02 ready for operation, while the lever end portion I20, intended for the operation of the left hand control device 90', is in engagement with the camming face I23b (Figure 8).
With the subsequent movement of the slur bar 22 to the left, that is, in the direction of arrow W (Figure 9) the cam part I220. is brought in I contact with said lever end portion I20 causing the same to ride upon the camming face I22a, as illustrated in said Figure 9, accordingly actuating the ratchet mechanism of the right hand control device 90 to move the carrier bar in engagement therewith thus bringing the yarn controlled thereby in position for its subsequent transverse movement. When'the slur bar 22 reaches the extreme left of its reciprocating movement, the lever end portion I20 of the left hand control device rides on the camming face I22b of the cam part I22b and falls between the latter and the camming face I230 of the cam part I220, as represented in Figure 10, thereby preparing the ratchetmechanism of the left hand control device 90' for its operation.
Upon the return stroke of the slur bar 22 to the right, that is, in the direction indicated by the arrow E (Figure 11), the cam part I22b is brought in contact with said lever end I20, causing the same to ride upon the camming face I231), as shown in Figure 11, to actuate said'pawl and ratchet mechanism of the left hand control device 90'- to move the carrier bar in engagement therewith to bring the yarn controlled thereby in position for its subsequent transverse movement.
, By reason of the alternating actuation of the control devices, it will be appreciated that the adequate overlapping of the yarns for the formation of a proper split suture devoid of extra long loops is assured since, during the traversing movement of a yarn carrier rod selected by the three-carrier tackle for the formation of one course, the yarn carrier rod left at one, end of the machine is brought to the required position for its selection for the formation of the second following course prior to its actual traversing movement for the formation of such second following course.
In this connection, it will be noted, particularly in Figures 8 and 10, that when the slur bar 22 is at its extreme right or left position, a spacing,
a indicated at I55, occurs between the respective cam parts I22a and I22b, and the associated lever ends I20 and I20. Because of this spacing, it will be appreciated that, since as is well known in the art, the function of the reverse Coulier motion causes the friction rod 24 which drives the carrier rod being utilized for the formation of a course, to move in unison with the slur bar 22, the positioning of a carrier rod for the formation of the second following course does not take place until after the driven carrier rod has moved for a certain distance, which assures the operation of the devices in the manner above stated. At this point, attention is called to the fact that whereas, the attachment and its function have been described as applied to a 1egger machine, to form the split high heel portions 4, the
same attachment may be mounted on a footer tion for its subsequent operation'bymanually rotating the hand wheel I56 which, as more clearly shown in Figure 13, is rigid with the shank portion I00 of the screw threaded spindle 98, the rotation of said hand wheel J56 thus causing 94 and its stop block I40 in position for said subsequent operation. However, it is to be understood that the resetting of the attachment may be done automatically, by providing the pattern chain 84 with the required number of buttons disposed to act upon the bell crank lever 82 in the'same manner as hereinbefore described to actuate the control devices 90 and 90' when in inoperative position during the function of the machine to knit the leg portion of the stocking blanks above the point P thereof, so that said control devices will be brought to their initial location and there stand ready to be turned to operative position by the time knitting of the stocking blanks has reached said point P.
In concluding, I wish it to be understood that whereas I have shown and specifically described herein the preferred construction of my improved attachment, the same may embody various structure modifications without departing from the gist of the invention. Therefore, any modifications coming within the scope of the subioined claims are to be considered within the spirit of the invention.
What I claim .is:
1. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a mechanism actuated through the reciprocation of said slur bar for arresting the selectively operated carrier rods at various points in the course of their traversing stroke, and controlled in its actuation by the slur bar through said pattern chain mechanism and Coulier motion.
2. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a carrier arresting mechanism; means carried by the slur bar to reciprocate therewith,andactinguponsaid mechanism to actuate the same for arresting the selectively operated carrier rods at various points in the course of their traversing stroke; and
means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said mechanism by said slur bar carried means,
3. In combination with the reciprocating slur bar, pattern chain, and Coulier motionof a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: devices arranged upon the knitting machine for arresting the selected carrier rods at the right hand'side and at the left hand side of their traversing stroke; means associated with said devices for operating the same to arrest said carrier rods at various points in the course of their stroke; means carried by the slur bar to reciprocate therewith and acting on the first mentioned means to actuate the same for its operation of the devices; and means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said first mentioned means by said slur bar carried means.
4. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence; devices arranged upon the knitting machine for arresting the rotation of the spindle 98 to place the sleeve the selected carrier rods at the right hand side, and at the left hand side of their traversing stroke; a ratchet mechanism associated with each of said devices for operating the same to arrest said carrier rods at various points in the course of their stroke; camming means carried by the slur bar to reciprocate therewith and acting on the ratchet mechanisms to actuate the same in their, operation of the devices; and means connected to the pattern chain and .Coulier motion and operated thereby for controlling the actuation of said ratchet mechanism by said camming means.
5. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a split suture attachment comprising a. carrier rod stop supporting member movable longitudinally of the machine to cause the arrest of the carrier rods at various points in the course of their traversing stroke; a rotatable element in screw threaded engagement with said member to impart its longitudinal movement; means between said element and the slur bar and adapted to be actuated by the reciprocation or the latter for operating said element; and a mechanism connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said means.
6. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a split suture attachment comprising a carrier rod stop supporting member movable longitudinally of the machine to cause the arrest of the carrier rods at various'points in the course of their traversing stroke; a rotatable element in screw threaded engagement withsaid member to impart its longitudinal movement; a ratchet mechanism associated with said element to rotate the latter; a cam carried by the slur bar and disposed for cooperation with said ratchet mechanism to actuate the same through the reciprocation of the slur bar; and a mechanism connected to the pattern chain and Coulier motion and operated thereby controlling the ratchet mechanism in its actuation by the slur bar carried cam.
'7. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality oi.
its carrier rods in repeated sequence: a split suture attachment comprising a carrier rod control device arranged upon the machine for arresting the selected carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for arresting the selected carrier rods at the left hand side of their traversing stroke; means associated with each of said devices for operating the same to arrest said carrier rods at various points in the course of their stroke; means carried by the slur bar to reciprocate therewith and alternatively acting on the means associated with each of said control devices for the alternate operation thereof; and means connected to thepattem chain and Coulier motion and operated thereby for controlling the actuation of the first mentioned means by said slur bar carried means.
8. In combination with'the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an atdevice arranged upon the machine for arresting the selected carrier rods at the left hand side of their traversing stroke; a ratchet mechanism associated with each of said devices'for operating the sameto arrest said carrier rods at various points in the course of their stroke; camming means carried by the slur bar to reciprocate therewith and acting on said ratchet mechanisms to actuate the same alternatively forthe alternate operation of said devices; and means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said ratchet mechanisms by said camming means.
9. In a-full-fashioned knitting machine provided with traversing carrier rods and having an attachment for selectively operating a plurality of said rods in repeated sequence to form a series of courses: a split suture attachment comprising a carrier rod controlling device arranged upon the machine for arresting the carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for arresting the carrier rods at the left hand side of their traversing stroke; a mechanism associated with'each of said devices for operating the same to arrest the carrier rods at various points in the course of their stroke; a reciprocating cam consisting of two parts, one of said parts being disposed to act on the operating mechanism of one of said devices with the reciprocation of the cam in one direction, and the other of said parts being disposed to act on the operating mechanism of the other of said devices with the reciprocation of the cam in the other direction, whereby during the traversing movement of a selected carrier rod for the formation of one course, the carrier rod left at one side of the machine to be selected for subsequent traversing movement for the formation of the second following course may be brought in position for its selection prior to its actual traversing movement for the formation of such second following course.
10. In a full-fashioned knitting machine provided with a reciprocating slur bar and traversing carrier rods and having an attachment for selectively operating a plurality of said rods in repeated sequence to form a series of'courses: a split suture attachment comprising a carrier rod controlling devicearranged upon the machine for arresting the carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for armachine to be selected for subsequent traversing movement for the formation of the second following course may be brought in position for its selection prior to its actual traversing movement for the formation of such second following course.
11. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of afullfashioned knitting machine provided with an at- "tachment for selectively operating a plurality of its carrier rods in repeated sequence: a split suture attachment comprising a carrier rod controlling device arranged upon the machine for arresting the selected carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for arresting the selected carrier.rods at the left hand side of their traversing stroke; a mechanism associated with each of said devices for operating the same to arrest the carrier rods at various points in the course of their stroke; a cam carried by the slur bar to reciprocate therewith and consisting of two parts, one of said parts being disposed to act on the operating mechanism of one of said devices with the reciprocation of the slur bar in one direction, and the other of said parts being disposed to act on the operating mechanism of the other of said devices with the reciprocation of the slur bar in the other direction; and means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said mechanisms by the cam parts in their respective movements with the reciprocation of the slur bar. 1
12. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a split suture attachment comprising a carrier rod control device arranged upon the machine for arresting the selected carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for arresting the selected carrier rods at the left hand side of their traversing stroke; a ratchet mechanism associated with each of said devices for operating the same to arrest said carrier rods at various points in the course of their right and course of their stroke; a cam carried by the slur bar to reciprocate therewith and consisting of two parts, one of said cam parts being disposed to act on the operating mechanism of the right hand side control device with the reciprocation of the slur bar from right to left, and the other of said cam parts being disposed to act on the operating mechanism of the left hand side control device with reciprocation of the slur bar from left to right, whereby during the traversing movement of a selected carrier rod for the formation of one course, the carrier rod left at one side of the left hand side strokes; a cam carried by the slur bar to reciprocate therewith and consisting of two parts, one of said part being disposed to act on the ratchet mechanism of one of said devices with the reciprocation of the slur bar in one direction, and the other of said parts being disposed to act on the ratchet mechanism of the other of said devices with the reciprocation of the slur bar in the other direction; and means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said ratchet mechanisms by the cam parts in their respective movements with the reciprocation of the slur bar. a
13. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a carrier arresting mechanism; means carried by the slur bar to reciprocate therewith and acting on said mechanism to actuate the same for arresting the selectively operated carrier rods at varside and at the left hand side of their traversing stroke; a ratchet mechanism associated with each of said devices for operating the same to arrest said carrier rods at various points in the course of their stroke; camming means carried by the slur bar to reciprocate therewith and'acting on the ratchet mechanisms to actuate the same alternatively for the alternate operation of said devices; a cam slidably supported on the machine and functioning to act on said ratchet mechanisms for controlling the actuation thereof by said camming means; and means connected to the pattern chain and Coulier motion for slid- '7 ing said cam to perform its function.
15. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a carrier arresting mechanism adjustably mounted for placement in active and inactive position; means carried by the slur bar to reciprocate therewith, and acting upon said mechanism to actuate the same for arresting the selectively operated carrier rods at various points in the course of their traversing stroke; means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said mechanism by said slur bar carried means; and means associated with said mechanism to reset the same when in inactive position.
16. In combination with the reciprocating slur bar. pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a carrier arresting mechanism adjustably mountedfor placement in active and inactive position; means carried by the slur bar to reciprocate therewith, and acting upon said mechanism to actuate the same for arresting the selectively operated car-. rier rods at various points in the course of their traversing stroke; means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said mechanism by said slur bar carried means; and means arranged upon the pattern chain and disposed'for action on said mechanism when in inactive position to reset the same automatically.
17. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a split sutureattachment comprising a carrier rod control device arranged upon the machine for arresting the selected can'ier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for arresting the selected carrier rods at the left hand side of their traversing stroke; a ratchet mechanism associated with each of said devices for operating the same to arrest said carrier rods at various points in the course of their right and left hand strokes; a cam carried by the slur bar to reciprocate therewith and consisting of two parts, one of said parts being disposed to act on the ratchet mechanism of one of said devices with the reciprocation of the slur. bar in one direction, and the other of said parts being disposed to act on the ratchet mechanism of the other of said devices with the reciprocation of the slur bar in the other direction; means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said ratchet mechanisms by the cam parts in their respective movements with the reciprocation of the slur bar; and means associated with said mechanisms to reset the same.
'18. In combination with the reciprocating slur bar, pattern chain, and Coulier motion of a fullfashioned knitting machine provided with an attachment for selectively operating a plurality of its carrier rods in repeated sequence: a split suture attachment comprising a carrier rod control device arranged upon the machine for placement from inactive to active position for arresting the selected carrier rods at the right hand side of their traversing stroke; a carrier rod control device arranged upon the machine for placement from inactive to active position for arresting the selected carrier rods at the left hand side of their traversing stroke; a ratchet mechanism associated with each of said, devices for operating the same to arrest said carrier rods at various points in the course of their right and left hand strokes; a cam carried by the slur bar to reciprocate therewith and consisting of two parts, one of said parts being disposed to act on the ratchet mechanism of one of said devices with the reciprocation of the slur bar in one direction, and the other of said parts being disposed to act on the ratchet mechanism of the other of said devices with the reciprocation of the slur bar in the other direction; means connected to the pattern chain and Coulier motion and operated thereby for controlling the actuation of said ratchet mechanisms by the cam .parts' in their respective movements .with the reciprocation of the slur bar; and means arranged upon the pattem chain and disposed for action on said mechanisms when in inactive position to reset the same automatically.
19. In combination with the traversing carrier rods, reciprocating slur bar, pattern chain, and rocker arm of the Coulier motion of a fullfashioned knitting machine: a carrier arresting mechanism; means carried by the slur bar to reciprocate therewith, and acting upon said mechanism to actuate the same-for its carrier arresting function; and a control mechanism associated with the pattern chain to be governed thereby and connected to the rocker arm of the Coulier motion to be operated thereby for controlling the actuation of said carrier arresting mechanism by said slur bar carrying means. i
20. In combination with the traversing carrier rods, reciprocating slur bar, pattern chain, and rocker arm of the Coulier motion of a fullfashioned knitting machine: a carrier arresting mechanism; means carried by the slur bar to reciprocate therewith, and acting upon said mechanism to actuate the same for its carrier arresting function; a control mechanism associated with the pattern chain to be governed thereby and connected to the rocker arm of the Coulier motion to be operated thereby for controlling the actuation of said carrier arresting mechanism by said slur bar carrying means, said control mechanism including a link and lever system associated with the carrier arresting mechanism, a cam slidably movable to adjust said system and displaceable to vary its adjusting function, means establishing a connection between the rocker arm and said cam to slidably move the latter, means normally acting on said cam to displace the same, latch means engaging said cam to hold the same against the normal action of the last mentioned means. and means under control of the pattern chain for releasing said latch means.
21. In a full-fashioned knitting machine provided with traversing carrier rods and having an attachment for selectively operating said rods: 9. split suture attachment comprising a carrier rod control device arranged upon the machine for for bringing the carrier rods to be selected in position for their selection prior to the actual traversing movements thereof.
FREDERICK C. GOOD.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809510A (en) * 1955-01-24 1957-10-15 Dexdale Hosiery Mills Reinforced knitted fabric

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809510A (en) * 1955-01-24 1957-10-15 Dexdale Hosiery Mills Reinforced knitted fabric

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