US2448498A - Mechanism for feeding yarn in circular weft knitting machines - Google Patents

Mechanism for feeding yarn in circular weft knitting machines Download PDF

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Publication number
US2448498A
US2448498A US635026A US63502645A US2448498A US 2448498 A US2448498 A US 2448498A US 635026 A US635026 A US 635026A US 63502645 A US63502645 A US 63502645A US 2448498 A US2448498 A US 2448498A
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Prior art keywords
yarn
needles
trapper
sinkers
guide
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US635026A
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English (en)
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Shortland Arthur
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Mellor Bromley and Co Ltd
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Mellor Bromley and Co Ltd
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/58—Thread guides for circular knitting machines; Thread-changing devices
    • D04B15/60—Thread guides for circular knitting machines; Thread-changing devices with thread-clamping or -severing devices

Definitions

  • This invention relates to mechanism for feeding yarn to the needles of circular weft knitting machines of the type furnished with independent needles and sinkers or web holders, the expresway of example, #with reference to the accom panying drawings, wherein Figure 1 is a side view of the said yarn feeding mechanism, including the timing gear prosion yarn being used generically as including vided for timing the movements of the yarn guide yarns or threads of any kind which may be used and also controlling the operation of the trapper for the purpose intended. in relation to these movements,
  • the invention comprises improved yarn feed-
  • Figure 2 is a further view of the said mechaing mechanism for application to circular knitnism and timing gear as seen in the direction of ting machines of the type aforesaid with inside the arrow A in Figure 1 and with the gear casing sinkers or web holders with the object of achievshown in section, ing certain advantageous results not only as re- Figure 3 illustrates one form of the means emgards introduction and withdrawal of a yarn at ployed for operating and controlling the yarn definite needles but also when a plurality of yarns feeding mechanism, are supplied together as in splicing and plating,
  • Figure 4 is a detail view similar to the lower or interchangeably as in the production of stripportion of Figure 3 depicting an alternative form ing effects. of operating cam,
  • FIG. 5 is a detail plan View of a portion of marily to circular knitting mechines with double the sinker ring or brass of the machine, showing axially opposed, e. g. superimposed, needle cylthe holding-down sinkers or web holders proinders and double-ended needles operable by jected radiallywith one of them projecting furmeans of sliders, and inside holding-down sinkers ther than the remainder for the purpose hereinor web holders.
  • Figure 6 is a detail perspective View of the supply simply a single yarn for as long as may same, be required, or to supply a yarn in addition to
  • Figure 7 is a transverse sectional view taken or instead of, a main yarn, as, for example, to on the line VII-VII of Figure 5 including 'also produce spliced or plated areas, or reinforced the associatedsinker cam rings, areas, .or/ and elastic areas (by means of a rub- Figure 8 is a developed view of so much of the her yarn), or to increase the rate of production knitting cam system of the machine, shown in of knitted fabric, or/and to supply a plurality of relation to a few of the needles and sinkers or contrasting, e. g.
  • FIG. 9 is a side View of the yarn guide and r quirements.
  • the yarn feeding mechanism according to the sinker and with the yarn cut and trapped prior invention comprises, in its simplest form, a movto being presented to a sinker or web holder, able yarn guide and an associated yarn trapper
  • Figure 10 is a corresponding detail tran verse and is adapted to operate so that a length of a sectional view of the yarn guide and the trapper yarn held between the guide and the trapper is as seen from outside the needle cylinders, and initially positioned so as to extend from front to Figures 11 and 12, 13 and 14, 15 and 16 are back of a circular series of sinkers or web holdviews respectively similar to Figures 9 and 10 61's suchwise as to be engaged by a sinker or web showing successive stages in the operation of the holder to effect introduction
  • the yarn feeding attachment shown in Fig- A constructional form of the improved yarn ures 1 and 2 comprises a yarn guide 3 slidably feeding mechanism applicable to a circular knitmounted in a swivel 4 carried by a bracket 5 atting machine of the superimposed rotary needle tached to the underside of the top plate '5 of the cylinder typ'e equipped with inside holding-down machine, with the guide 3 connected to a pin 1 sinkers or web holders will now be described, by
  • a trapper 'I' with a fixed jaw 9 and movable jaw ill.
  • the trap-per which is also formed as a cutter, is fixed on the bracket 5 by means of screws lit.
  • the jaws of the trapper T are of blade-like form and yieldingly held together by a compression spring E 2 ( Figure 2) suitably arranged.
  • the operative end of thefixed jaw 9 is recessed at 9a to receive a yarn when withdrawn from knitting.
  • the bracket 3 is in the form of a casing, complete with cover 5a, adapted to house timing gear for operating the crank 8 and the movable jaw H] of the trapper T.
  • This gear includes a set of rotary timing cams mounted upon an axle l3 and adapted to be turned as the result of rotation in the appropriate direction of a pinion M through the medium of ratchet teethsuch as Mia of a clutch device (see Figure 2).
  • the saidpinion which is suitably spring controlled and mounted on a spindle I4 is arranged in mesh with a vertically disposed toothed rod or rack Hi. This rod is slida-bly arranged within a tubular extension 511) of the casing 5 in which it is guided by a'pin I 6 working in'a slot I? formed in the wall of the said extension.
  • a feeder cam I8- Secured to the axle i3 is a so-called feeder cam I8- for swinging the operative end of the yarn guide 3 downwards at appropriate-times.
  • a feeder counter cam IQ for moving the yarn guide in the reverse direction is attached to the side of the feeder cam 18.
  • a trapper cam 20 Suitably associated with the cam I8 so as to rotate therewith is a trapper cam 20 for moving the jaw it of .the trapper suchwise as to sever and trap a yarn.
  • a counter trapper cam portion 2! is attached by means of screws to the outer side of the cam 263.
  • may be made adjustable angularly with respect to the feeder earn it, for which purpose the said trapper cam is formed with arcuate slots 20a through which are passed small set screws 22.
  • the crank 8 is provided on the outer end of a spindle 23 to which is secured a pinion 24 (see Figure 2) arranged in mesh with a toothed quadrant 25.
  • the quadrant 25 is constituted by an integral extension of a lever 26 which is pivoted at 21 and adapted to be actuated by the cams l3 and i9.
  • a nose-like element 28 arranged for contact with the feeder cam l8 whilst the freeend 25a of the lever atthe opposite side of the. pivotis shaped somewhat similarly to the element- 28 for contact with the feeder counter cam 19;
  • another lever 29 which is pivoted at 30 ( Figure 1) and formed at 2% for engagement with the tail'end of the movable jaw.
  • This trapper-actuating lever 29' is formed witharms 29b and 290 disposed in dilferent planes and at opposite sides of the pivot 39 for contact withthemtrapper cam 28 andthe countertrapper cam 2 I respectively.
  • the construction so far described is therefore such that by depressing the toothed.
  • rod I'the timing cams are turned for a partial revolution (preferably through 180 or thereabouts) as a consequence of which the yarn guide 3 is swung up and: down as well as being alternately advanced and retracted radially, while the trapper is opened and closed.
  • the rod I5- is raised the timing cams remain stationary by reason of' the action of the saw clutch teeth Mazonthe pinion it.
  • the upper end of the toothed rod l5 projects up through the top of the gear casing 5 and is forked at 15a for connection to the outer end of a pivoted operating lever 33.
  • This lever is connected by means of a link or rod 3.4-with a control-lever 35 arranged with its operative' end incontact with a rotary control cam 35.
  • Figure 4 illustrates an alternative form of controlcam 36 secured upon a horizontally disposed ring, 31 adapted to be racked as desired.
  • the mechanism is applied to the machine suchwisethat normally the eye or throat 3a of the guide 3 and the jaws -9 and iii of the trapper T are located-above the nibs 2a of the holding-down sinkers. or web holders 2, where the latter are projected. as shown in Figures 9 and 10, with the guide withdrawn so thatv the eye or throat 3a is further away radially from the sinkers or web holders thanthe jaws of the trapper.
  • a-short length y of the yarn extends outwardsfrom the sinkers or web holders 2, horizontally, or substantially so, above the nibs 2a thereof.
  • the operative end 3a of of the guide 3 is first swung'downwards from its position above the sinkers'or web holders 2 to a position below them thereby increasing the length of yarn between it and the trapper and disposing this length vertically, or substantially so, as indicated at g in Figures 11 and 12, for engagement with the next following sinker or'web holder 2 and introduction of the .yarn to the needles descending at the yarn feeding location, then the guide 3 is swung upwards so that its' eye or throat 3a is located above the'sinkers or webhold'ers 2, and somewhat above the trapper T.
  • the timing gear is operated so as to withdraw the guide 3 radially from the sinkers or-web' holders 2 and lower it somewhat so that the yarn is located between the then open jaws of the trapper T ( Figures 15 and 16) whereupon the trapper is operated to sever and trap the yarn (see' Figure 9).
  • a feeder plate 38 with a..yarn receiving notch 38a therein, is provided between the yarn feeding mechanism and the needles' l so that the feeding yarn is located in-.the-notch-when the guide occupies the feeding position. shown. in Figures 13 and 14.
  • the length y of yarn held between the guide 3 and the trapper T ( Figure 11) can properly be said to extend from front to back of the sinkers or web holders, since by the front of a sinker of this character is usually meant the uppermost or outermost edge thereof defining the nib 2a, the throat and the belly, whereas the back means the opposed underside or inner edge of the sinker.
  • the proximity of the guide 3 and the trapper T to the sinkers or web holders 2 may be such that when the guide is swung downwards'the length of yarn g is located between two normally projected sinkers or web holders, but if desired for further certainty of action, a sinker or web holder differentiated from the others, may be substituted for one of the ordinary sinkers, or a sinker modified as regards its butt formation may be provided and the sinker cam system ma be modified so that this particular sinker projects further than the remainder when moved outwards, so that the position of the guide and trapper need not be so critical.
  • the particular sinker or web holder 2 which engages the length 1/ of yarn is differentiated from the others so as to project further than the remainder as shown clearly in Figures 5, 6 and 7.
  • the sinker ring which is of conventional form, is indicated at 39 whilst in Figure 1 are also shown the associated upper and lower sinker cam rings 40 and 41 respectively.
  • Figure 8 are depicted in diagrammatic fashion a few of the needles I and the sinkers or web holders 2 in the region of the knitting location KL.
  • the knitting butts of the needle actuating sliders are indicated at 42, and at 43 is shown the stitch cam for forward knitting in the direction of the arrow B.
  • the line SR represents the top of the sinker ring, and, for clarity, the operative ends of sinkers or web holders 2 are laid out fiat in the plane of the needles, i. e. at right angles to the plane in which they are actuall located.
  • the wave SW of outwardly projected sinkers or web holders 2 is in advance of the needle wave NW; the specially projected sinker 2 is shown at the centre of the wave SW.
  • a slider such as that indicated at 44 with a butt 45 diifering, e. g. longer than, the corresponding butts of the remaining sliders may be incorporated in the needle cylinder 3! for action thereupon b a cam 48 designed to efiect a premature lowering of the corresponding needle I so that the portion of yarn extending between the specially projected sinker or web holder 2 and the trapper is located between the hook and the latch of the said needle further to ensure initial engagement of the yarn with the needle. If desired, two or more needles may be prematurely lowered in this way.
  • two or more guides are provided, operable by appropriate timing gear in conjunction with individual trapping and severing units, or a common trapping and severing unit, and the guides are preferably formed so as to converge upon a common yarn feeding location, e. g. the notch in the aforesaid feeder plate.
  • the improved yarn feeding mechanism may be applied to circular knitting machines of the stationary needle cylinder type as well as to machines of the rotary needle cylinder type, and as will be understood, in the former case engagement of an ingoing yarn with the needles will be effected by virtue of circular movement of the feeding mechanism in relation to the sinkers or web holders.
  • the invention may also be applied to circular knitting machines with bearded needles.
  • the mechanism may be adapted to feed a yarn or yarns for partial courses as well as for complete courses of knitting.
  • a circular weft knitting machine in combination, at least one needle cylinder, a set of independent needles for operation in said cylinder, a circular series of sinkers arranged to co-operate with the needles when knitting, and mechanism for feeding yarn to the needles, said mechanism comprising a movable yarn guide, an associated trapper, and means for operating the said guide and the trapper in timed relation suchwise that when the mechanism is rendered operative a length of yarn held between the guide and the trapper is initially positioned so as'to extend from front to back of the sinkers and to be engaged by a sinker to effect introduction of the yarn to the needles.
  • a circular weft knitting machine in combination, at least one needle cylinder, a set of independent needles for operation in said cylinder, a circular series of sinkers arranged to co-operate with the needles when knitting, and mechanism for feeding yarn to the needles, said mechanism comprising a movable yarn guide, an associated trapper, and means for operating the said guide and the trapper in timed relation suchwise that when the mechanism is rendered operative a length of yarn held between the guide and the trapper is initially positioned so as to extend from front to back of the sinkers and to be engaged by a sinker to effect introduction of the yarn to the needles whereafter, to discontinue feeding the yarn' to the needles the mechanism reverts to its original position, during which movement the running yarn is trapped and severed so that another length is held in readiness for the next introduction.
  • a, circular weft knitting machine in combination, at least one needle cylinder, a set of independent needles for operation in said cylinder, a circular series of sinkers arranged to cooperate with the needles when knitting, a stitch cam for imparting stitch forming movements to the needles, means for actuating the sinkers and so timing them in relation to the said stitch forming movements that the sinkers are projected radially in advance of the stitch cam so that the needles draw loops over the projected sinkers, and beyond the stitch cam the sinkers are retracted to hold the newly formed stitches while the needles are cleared and mechanism for feeding yarn to the needles, said mechanism comprising a movable yarn guide, an associated trapper and means for operating the said guide and the trapper in timed relation suchwise that when the mechanism is rendered operative a length of yarn held between the guide and the trapper is initially P sitioned so as to extend from front to back of 1 so timing them in relation to the said stitch.
  • said mechanism comprising a movable yarn guide, an associated'trapper, and means for:operating.;-;the said guide and the trapper in timed-relation suchwise that when themechanisrrrris-rendered operative a length of yarn; held between the guide andthetrapper "is initially positioned-so asto: extend from front-to'back ofthesinkBrsand tobe caught by the specially pro- J'ected-asinker to effect: introduction of the. yarn to-th'e needles.
  • cylindery a circular-series of sinkers arranged to cooperate with: the needles when knitting, a stitch cam for imparting stitch forming movements-to comprising a movable-yarnguide; an associated trapper fixed in: 1 front of the V series of sinkers, means for opening and' closin the said trapper at appropriate times; and means for moving the yarnrguidexfrom front to back of the sinkers in the-regionror outward projection thereof, and vice versa, timed-relation withthe operation of the trapper, the construction andarrangement of the; said mechanism being such that when the yarn guide ismoved to the back of thesinkers a length of yarn held between the said'guide and the'trapper is: increased and presented toa projected. sinker to effect introduction of the yarn to the-needles;
  • a circular weft knitting machine in com.- bination, at least one needle cylinder, a set of independent needles for operation in said cylinder, a circular series of sinkers arranged to cooperate with the needles when knitting, a stitchcam for imparting stitch forming movementsztoi the needles, means for actuating the sinkers and so timing them in relation to the said stitch forming movements that the sinkersare projected radially outwards in advance of the'stitch cam so that the needles draw loops over the projected sinkers,.and beyond the stitch cam the sinkers are retracted to hold the newlyformed stitches while the needles are cleared, and mechanismi for feedin yarn to the needles,- said. mechanism.
  • the construction and arrangement of the said mechanism being such that when the yarn guide is moved to the back of the sinkers a length of yarn held between the said guide and the trapper is increased and presented to aprojected sinker to effect introduction of the yarn to the needles, and. for'withdrawing the yarn from the needles the yarn guide is retracted radially from the sinkers and the trapperis opened; so
  • a circular series of sinkers arranged to co-operrate with the needles when knitting, a stitch camfor. imparting stitch forming movements to-the needles, means for actuating the sinkers and so timing them inrelation to the said stitch formingmovements that the sinkers are projected radially outwards in advance of the stitch cam so that the needles draw loops over the projected sinkers, and beyond the stitch cam the sinkers are retracted to hold the newly formed stitches.
  • the yarn guide is retracted radially from the sinkers and the trapper is opened so that the yarn is located therein whereupon the trapper is closed and the yarn is severed.
  • a circular weft knitting machine in combination, at least one needle cylinder, a set of independent needles for operation in said cylinder, a circular series of sinkers arranged to'cooperate with the needles when knitting, a stitch cam for imparting stitch forming movements to the needles, means for actuating the sinkers and so timing them in relation to the said stitch forming movements that the sinkers are projected radially outwards in advance of the stitch cam so that the needles draw loops over the rojected sinkers, and beyond the stitch cam the sinkers are retracted to hold the newly formed stitches while the needles are cleared, and mechanism for feeding yarn to the needles, said mechanism comprising a yarn guide pivotally and slidably arranged in relation to a trapper fixed in front of the series of sinkers, means for opening and closing the said trapper at appropriate times, and means for actuating the yarn guide so that its operative end describes an arc in moving from front to back of the sinkers in the region of outward projection thereof, and vice versa, in
  • a circular weft knitting machine in combination, at least one needle cylinder, a set of independent needles for operation in said cylinder, a circular series of sinkers arranged to cooperate with the needles when knitting, and mechanism for feeding yarn to the needles, said mechanism comprising a movable yarn guide, an associated trapper and cam and crank means for operating the said guide and the trapper in timed relation suchwise that when the mechanism is rendered operative a length of yarn held between the guide and the trapper is initially positioned so as to extend from front to back of the sinkers and to be engaged by a sinker to effect introduction of the yarn to the needles.
  • a circular weft knitting machine in combination, at least one rotary needle cylinder, a set of independent needles for operation in said cylinder, a circular series of inside holding-down sinkers arranged to co-operate with the needles when knitting, and mechanism for feeding yarn to the needles, said mechanism comprising a bracket, a swivel carried by said bracket, a yarn guide slidably mounted in the swivel, a crank furnished with a pin to which the said guide is connected, a trapper having a fixed jaw and a movable jaw and also formed as a cutter fixed on the aforesaid bracket, timing gear for operating the crank and the movable jaw of the trapper in suitable timed relation, and driven means for controlling the said timing gear suchwise that when the mechanism is rendered operative a length of yarn held between the guide and the trapper is initially positioned so as to extend from front to back of the sinkers and to be engaged by a sinker to effect introduction of the yarn to the needles.
  • a circular weft knitting machine in combination, at least one rotary needle cylinder, a set of independent needles for operation in said cylinder, a circular series of inside holding-down sinkers arranged to co-operate with the needles when knitting, a stitch cam for imparting stitch forming movements to the needles, means for actuating the sinkers and so timing them in relation to the said stitch forming movements that the sinkers are projected radially in advance of the stitch cam so that the needles draw loops over the projected sinkers, and beyond the stitch cam the sinkers are retracted to hold the newly formed stitches while the needles are cleared, the mechanism being applied to the machine suchwise that normally the eye of the yarn guide and the jaws of the trapper are located above the nibs of the holding-down sinkers, where the latter are projected', with the guide withdrawn so that the eye is further away radially from the sinkers than the jaws of the trapper whereby when the guide is threaded with a yarn and the leading end of the yarn is engaged with the trapper,
  • a circular weft knitting machine in combination, at least one rotary needle cylinder, a set of independent needles for operation in said cylinder, a circular series of inside holding-down sinkers arranged to co-operate with the needles when knitting, a stitch cam for imparting stitch forming movements to the needles, means for actuating the sinkers and so timing them in rela tion to the said stitch forming movements that the sinkers are projected radially in advance of the stitch cam so that the needles draw loops over the projected sinkers, and beyond the stitch c'am the sinkers are retracted to hold the newly formed stitches while the needles are cleared, the mechanism being applied to the machine suchwise that normally the eye of the yarn guide and the jaws of the trapper are located above the nibs of the holding-down sinkers, where the latter are projected, with the guide withdraw-n so that the eye is further away radially from the sinkers than the jaws of the trapper whereby when the guide is threaded with a yarn and the leading end of the yarn is engaged
  • a yarn feeding attachment comprising, in combination, a bracket, a swivel carried by said bracket, a yarn guide slidably mounted in the swivel, a crank furnished with a pin to which the said guide is connected, a trapper fixed to said bracket, said trapper having a fixed jaw and a movable jaw and beingalso formed as a cutter, and timing gear for operating the crank and the movable trapper jaw in suitable timed relation.
  • a yarn feeding attachment comprising, in combination, a bracket, a swivel carried by said bracket, a yarn guide slidably mounted in the swivel, a crank furnished with 'a pin to which the said guide is connected, a trapper :fixedito said bracket, said trapper having a fixedjaw and :a movable .jaw and being also formed asa cutter, rotary cams :for 'actuatingthe ,yarn guide by swinging it first in one direction and then in the other, associated rotary cams for moving the aforesaid'movable jaw back and forth to open and close the trapper in timed relation with the movements of the yarn guide, connections through which the rotary timing cams are adapted to be controlled, and levers actuated by the said cams for transmittingthe required n'iovem'ents to the crank'and the movable trap- .per jaw respectively.
  • a yarn feeding'attachment comprising,
  • a yarn feeding attachment comprising, in combination, a bracket, a yarn guide pivotally and slidably arranged on said bracket, 'a trapper fixed to said bracket, said trapper having a fixed jaw and a movable jaw and-being also formed as a cutter, timing gear for operating the yarn guide and the movable trapper vjaw in suitable timed relation, and means for controlling the operation of the timing-gear according to requirements.

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US635026A 1944-12-19 1945-12-14 Mechanism for feeding yarn in circular weft knitting machines Expired - Lifetime US2448498A (en)

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GB25444/44A GB589622A (en) 1944-12-19 1944-12-19 Improvements in or relating to mechanism for feeding yarn in circular weft knitting machines

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US2448498A true US2448498A (en) 1948-08-31

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DE (1) DE806980C (de)
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636366A (en) * 1953-04-28 Shortland
US2930214A (en) * 1958-03-07 1960-03-29 Fidelity Machine Company Inc Splicing mechanism for circular knititing machines
US3246489A (en) * 1961-11-24 1966-04-19 Bella Italo Della Device for shaving off the loose ends of women's stockings on circular machines
US3949571A (en) * 1974-11-29 1976-04-13 Hampshire-Designers, Inc. Elastic yarn binder and cutter
US3975927A (en) * 1970-05-19 1976-08-24 Firma Fouquet-Werke Frauz & Planck Striping apparatus for circular knitting machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1207035B (de) * 1960-03-11 1965-12-16 Mayer & Cie Maschinenfabrik Fadeneinlegevorrichtung fuer Ringelapparate an Doppelzylinder-Rundstrickmaschinen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB226647A (en) * 1923-11-03 1925-01-01 William Spiers Improvements in or relating to yarn changing means for circular knitting machines
US2023633A (en) * 1931-06-09 1935-12-10 Bentley Eng Co Ltd Circular knitting machine
US2377729A (en) * 1942-05-15 1945-06-05 Toone Nottingham Ltd B Knitting and knitting machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB226647A (en) * 1923-11-03 1925-01-01 William Spiers Improvements in or relating to yarn changing means for circular knitting machines
US2023633A (en) * 1931-06-09 1935-12-10 Bentley Eng Co Ltd Circular knitting machine
US2377729A (en) * 1942-05-15 1945-06-05 Toone Nottingham Ltd B Knitting and knitting machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636366A (en) * 1953-04-28 Shortland
US2930214A (en) * 1958-03-07 1960-03-29 Fidelity Machine Company Inc Splicing mechanism for circular knititing machines
US3246489A (en) * 1961-11-24 1966-04-19 Bella Italo Della Device for shaving off the loose ends of women's stockings on circular machines
US3975927A (en) * 1970-05-19 1976-08-24 Firma Fouquet-Werke Frauz & Planck Striping apparatus for circular knitting machines
US3949571A (en) * 1974-11-29 1976-04-13 Hampshire-Designers, Inc. Elastic yarn binder and cutter

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FR920536A (fr) 1947-04-10
DE806980C (de) 1951-06-21
GB589622A (en) 1947-06-25

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