US1912474A - Circular knitting machine - Google Patents

Circular knitting machine Download PDF

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Publication number
US1912474A
US1912474A US509995A US50999531A US1912474A US 1912474 A US1912474 A US 1912474A US 509995 A US509995 A US 509995A US 50999531 A US50999531 A US 50999531A US 1912474 A US1912474 A US 1912474A
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United States
Prior art keywords
pelerine
bed
instruments
sinker
needle
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Expired - Lifetime
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US509995A
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English (en)
Inventor
Cole Alfred Reymes
Cole Bernard Thornton
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Wildt and Co Ltd
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Wildt and Co Ltd
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Publication date
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Publication of US1912474A publication Critical patent/US1912474A/en
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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
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/38—Circular knitting machines with independently-movable needles for producing patterned fabrics with stitch patterns

Definitions

  • This invention consists in improvements in or relating to knitting machines and to a method of knitting.
  • openwork efiects can be produced in the fabric in a novel and improved manner with the aid of what are commonly known as pelerine stitches.
  • a method of forming a pelerine stitch is characterized in that the needle-joining loop that is eventually to be passed over a needle or needles is first drawn to the required length as the yarn is fed to the needles by passing the yarn over a pelerine instrument that at that time is spaced from the verge of the needle-bed a distance corresponding to the required length of the loop.
  • Means according to the present invention for producing a pelerine stitch comprises in combination a bed for the pelerine instrument which is mounted in the machine so as to remain in fixed, or substantially fixed, relationship with respect to the needle-bed, particularly as to its distance from the verge of the needle-bed, and in which the pelerine instrument slides in a direction transverse to the paths in which the needles move at a fixed distance above or beyond the said verge.
  • Figure 1 is a plan View of a machine having an attachment for producing pelerine stitches according to the present invention and shows only those parts necessary for understanding the invention
  • Figure 2 is an elevation of the parts shown in Figure 1, the additional needle-depressing cam having been omitted for the sake of clearness;
  • Figure 3 is a section on the line 33 of Figure 4;
  • FIG. 4 is a Figure 3
  • Figure 5 is an elevation of the additional needle-depressing cam and associated parts looking from the left-hand side of the corresponding parts in Figure 1;
  • Figure 6 is a diagram showing the relative positions of the knitting cams and the additional depressing cam
  • Figures 7, 8 and 9 show respectively three successive steps in the formation of a pelerine stitch
  • Figure 10 is a section similar to that shown in Figure 3 of a modified form of the invention.
  • Figure 11 is a plan of the parts shown in Figure 10;
  • Figure 12 is a section, also similar to that plan of the parts shown in of Figure 3, of a still further modification of the invention.
  • Figure 13 is a plan of some of the parts shown in Figure 12;
  • Figure 14 is a detail showing a method of adjusting the stops on the sinker cover.
  • the bed for the pelerine instruments is indicated generally by the reference numeral 14 and is supported from the sinker-ring 12 in the following manner:
  • a groove is cut or otherwise provided on the inside of the sinker-ring near its face in order to accommodate a ring 15 that is held in place by screws such as 16 spaced at intervals around the sinker-ring 12.
  • the bed 14 is formed in two halves divided diametrically as shown in Figure 1 and these two halves are held together by clamping plates 17 and screws 18. The screws pass through slots in the clamping plates 17 extending circumferentially of the machine so that the two halves of the bed 14 can be adjusted circumferentially in order to bring the pelerine instruments into correct alignment over the tricks in the sinker-ring 12 and exactly centrally in the needle spaces.
  • Each half of the bed 14 is supported from the ring 15 by means of pillars 19 which may be disposed in groups at intervals or otherwise disposed around the machine.
  • Each pillar is flat in a radial plane and extends upwardly in a line parallel with a trick-wall of the sinker-ring, thus leaving spaces between adjacent pillars for sinkers to slide between in their normal manner.
  • two diametrically opposed groups of pelerine instruments 20 are provided, the purpose of these instruments being to produce openwork clocks for hose and half-hose; and in order to enable the instruments to be inserted in tricks provided for their reception'in the bed 14 a coverplate 21 secured to the bed by screws 22 is provided.
  • Each pelerine instrument may comprise two fiat strips assembled and movable in company side-by-side in atrick in the bed 14 and the innermost ends of the strip are splayed outwardly as indicated at 23; or each instrument may, if so desired, be formed of a single piece, or may be fashioned by any other means.
  • the strips 20 have upstanding lugs 24 for a purpose to be described later, and at their outer ends they are formed with butts 25 arranged at various heights, five heights being indicated in Figure 3, it being understood that any number may be substituted if desired.
  • three selector levers 26 are provided pivoted at 27 in the bed 14, and are arranged so that their free ends, when moved inwardly, will engage the outer extremities of these instruments which have butts 25 at corresponding heights. Normally, the selectors 26 are urged outwardly from the axis of the machine by the centrifugal force induced by the rotation of the machine and are selectively moved inwardly by means of an abutment 28 projecting from the upper end of an endwise1noveable rod 29.
  • the rod 29 slides in a bracket 30 secured to a fixed portion of the machine and is urged downwardly by a spring 31 that surrounds the rod 29 and is in compression between the upper bearing for the rod 29 in the bracket 30 and a collar 32 secured to the rod.
  • the height of the abutment 28 will determine which of the selectors 26 is to be operative in each revolution of the machine.
  • the height of the abutment 28 is controlled by studs 33 that can be inserted in any desired sequence in a ratchet-ring 34.
  • the latter is mounted to rotate about a fixed spindle 35 and is formed with teeth on its periphery which are engaged by a pawl 36.
  • the pawl 36 is pivotally mounted at 37 in a swinging arm 38 that also pivots about the spindle
  • the inner end of the arm 38 carries a cam-follower 39 which is engaged on each revolution of the machine by a cam 40 that is carried round in company with the needle-cylinder 10.
  • the needle-cylinder and the cam 40 are rotatable around the axis of the machine in the direction of the arrow in Figure 1 and Consequently each time the cam 40 passes the cam-follower 39 the arm 38 will be rocked in a clockwise direction as viewed in Figure l and will thereby cause the pawl 36 to advance the ratchet-wheel 34 through one tooth space.
  • a ditlerent stud 33 will be brought beneath the rod 29 in order to control the height of the abutment 28.
  • studs of only two different heights are illustrated and the third or lowermost position of the abutment 28 will be attained when the foot of the rod 29 is lowered on to the surface of the ratchetwheel 34.
  • a dividing cam 41 is mounted on a fixed part in order to divide the lugs 24 of the selected and unselected instruments 20 and to advance the selected instruments to their full inward position.
  • a return-cam 42 is also provided to engage the projections 24 of those instruments that have been selected and to return them outwardly in a manner to be described later.
  • the slider 44 is guided in a block 46 secured to a fixed part of the machine and at its outer -end is engaged by one extremity of a bellcrank 47 pivoted at 48 in the block 46.
  • the other arm of the bellcrank 47 is pivotally connected at 49 to a plunger 50 that is controlled from any desired patterning mechanism in order to determine when the cam 43 is to be operative or inoperative upon the needlebutts.
  • the needles will enter the sti ch-cam system and when they arrive at a position indicated by the line B in Figures 1 and 6, the return-cam 42 commences to act to withdraw the pelerine instruments that They are first withsplayed ends pass, with respect to the waleloop 51 ( Figures 7, 8 and 9) from the position shown in Figure 7 to that shown in Fig);v
  • the bed for the pelerine instruments should be supported from the sinker-ring as described above.
  • it may be mounted to rotate on the sink-er cover, as indicated in Figure 10, in which the same reference numerals have been employed to designate the needle-cylinder, the sinker-ring, the sinker cover and the bed for the pelerine instruments.
  • a bracket 153 is fixed to the sinker cover 13 and has its movement limited by stops 154: in the manner usual with hose and half-hose machines.
  • the bracket 153 carries a spindle 55 journalled in it and having pinions 56 and 57 secured to the spindle.
  • the pinion 57 meshes with a gear-ring 58 attached to the sinker-ring 12, and the pinion 56 meshing with a ring of gear-teeth provided on the bed 1 1.
  • the sinker-s cover 13 remains relatively stationary with respect to the sinker-ring. Consequently, relative rotation of these parts will, through the pinions 56* and 57 and spindle 55 cause the bed 1 1 also to partake of the same relative rotation with respect to the sinker-cover 13.
  • the sinker-cover is intended to be held stationary during round knitting and it will be so held by engagement of the bracket 153 with one of the stops 154. During reciprocating knitting the bracket 153 can oscillate between the spaced stops 154 as is customary in hose and half-hose machines. In the description applied to Figures 10 and 11 only those parts have been referred to which differ from the previously described construction.
  • Figures 12, 13 and 141 illustrate a further modification of the invention, in which the sinker-ring 12 has secured to it, by means of screws 60, a ring 61. Attached to the latter is an upstanding ring 62 formed with vertical slots for the passage through them of the outer ends of the pelerine instruments.
  • Projections 53 for the sinker cover drivers (which correspond to the projection of the bracket 153 in the example illustrated in Figure 11) will lie inside the ring 6
  • the latter is slotted circumferentially between the positions occupied by the two sets of pelerine instruments to enable adjustable stops 54 to be inserted through them into engagement with the projections 53.
  • the stops 54 are, therefore, made adjustable, that is to say, they are mounted to slide radially of the machine and any preferred timing mechanism is employed to withdraw them one at a time so that neither of them is withdrawn from en- 21 81119I1l) with its )ro ection 53 while the D D J other is disengaged from its associated projection,
  • the right-hand portion 64 approaches the right-hand stop 54 the latter will be withdrawn but the lefthand stop will still be in engagement with its projection 53.
  • the part 64 has passed the right-hand stop the latter will be re-introduced to engage its projection 53 and the left-hand stop will then be with drawn to permit the passage of the part 64.
  • a convenient means for withdrawing the stops 54 in the requisite timed sequence is afforded by means of sector-cams 65 which are secured to the ring 61 by screws 66 and Vwhich en a e )ins 67 de iendin from the b O b sliding stops 54. As will be clearly understood from Figure 13 these cams 65 serve to withdraw the stops 54 before the parts 6-1 reach the stops.
  • a rod 167 is provided which engages and holds up, the abutment 28 at the required height.
  • This rod 167 is controlled from any convenient and preferred form of patterning mechanism.
  • a rod 68 can be employed which is capable of vertical movement under the influence of cams on the control drum to detain, by means of engaging notch 69, the oscillating arm 38 from swinging about its pivot 37 so that the camfollower 39 is held clear of the cam 40.
  • the invention is to be understood as including as an attachment to an existing machine means for producing a pelerine stitch comprising the bed for the pelerine instruments, means to support it from the needle-cylinder or from a part between which and the needle-cylinder there is no relative rotation about the axis of the machine together with the necessary selectors and actuating cams.
  • I claim 1 For a circular knitting machine the combination of a needle bed, needles therein, a bed for pelerine instruments, a sinkerholder and means to secure the pelerine instrument bed to the sinker-holder.
  • a needle bed for a circular knitting machine the combination of a needle bed, needles therein, a sinker-ring, movable sinkers therein, a bed for pelerine instruments, an annular recess in the region of the inner edge of the sinkerring, a carrier received in said recess and constituting a support for the pelerine instrument bed and spaced pillars interconnecting the latter with the carrier and extending in a direction transverse to that of the sinker moven'ients, the spacing of the pillars being such as to permit the sinkers to slide between adjacent pillars.
  • F or acircular knitting machine the combination of a needle bed, needles therein, a bed for pelerine instruments comprising a plurality or" segmental portions the inner boundaries of which are spaced from the axis of the machine and means for interconnectsaid segmental portions to permit relaadjustment between them in a circum- 6.
  • F or a circular knitting machine the combination of a needle bed, needles therein, r-holder. movable sinkers therein, a ,i-cover, abed for pelerine instruments supported above said cover and a gearcoupling between said pelerine instrument bed and the needlecylinder.
  • the combination ot a needle bed, needles therein, a sinker-holder, movable sinkers therein, a bed for pelerine instruments rotatable about the a of the machine and supported above the sm'Ier-holder, and a geared operative connection between the pelerine instrument bed and the needle-cylinder.
  • sinker-holder movable sinkers therein, a relatively stationary sinker cover, a bed for pelerine instrument-s rotatable about an axis of the machine above the sinker-cover, two
  • one of the stops from cooperation with its projection and then to release it before engaging the next stop.
  • a needle bed for a circular knitting machine the combination of a needle bed, needles therein, a bed for pelerine instruments, pelerine in struments therein movable in paths transverse to those in which the needles move and having butts arranged at various heights, selectors one for each height of butt and all movable in the direction in which the instruments slide, an abutment to engage the selectors, there being relative rotation about the axis of the machine between the selectors and the abutment, and means to adjust the abutment and bring it into engagement with any one or more of the selectors at will.
  • an attachment comprising an annular or segmental bed for pelerine instruments having in it radial tricks for the reception of said instruments, a supporting ring adapted for operative connection to a sinker-holder, and spacing members for holding the bed and supporting ring at a fixed distance from one another.
  • a needle bed need'lestherein, a sinker-ring, movable sinkers therein, a bed for pelerine instruments, an annular recess formed in the region of the inner edge of the sinker-ring, acarrier in said recess and means to support the pelerine instrument bed on said carrier.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US509995A 1930-01-25 1931-01-20 Circular knitting machine Expired - Lifetime US1912474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2635/30A GB347632A (en) 1930-01-25 1930-01-25 Improvements in or relating to circular knitting machines

Publications (1)

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US1912474A true US1912474A (en) 1933-06-06

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Application Number Title Priority Date Filing Date
US509995A Expired - Lifetime US1912474A (en) 1930-01-25 1931-01-20 Circular knitting machine

Country Status (4)

Country Link
US (1) US1912474A (xx)
BE (1) BE376697A (xx)
FR (1) FR709857A (xx)
GB (1) GB347632A (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900005892A1 (it) * 2019-04-16 2020-10-16 Santoni & C Spa Macchina circolare per maglieria per la realizzazione di tessuto a maglia traforato

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900005892A1 (it) * 2019-04-16 2020-10-16 Santoni & C Spa Macchina circolare per maglieria per la realizzazione di tessuto a maglia traforato
WO2020212816A1 (en) * 2019-04-16 2020-10-22 Santoni S.P.A. A circular knitting machine for manufacturing open-work knitted fabric
CN111826789A (zh) * 2019-04-16 2020-10-27 圣东尼股份公司 用于制造网孔针织面料的圆型针织机
CN111826789B (zh) * 2019-04-16 2024-03-08 圣东尼股份公司 用于制造网孔针织面料的圆型针织机
US12012677B2 (en) 2019-04-16 2024-06-18 Santoni S.P.A. Circular knitting machine for manufacturing open-work knitted fabric

Also Published As

Publication number Publication date
FR709857A (fr) 1931-08-14
BE376697A (xx)
GB347632A (en) 1931-04-27

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