US2436438A - Stop motion for looms, etc. - Google Patents

Stop motion for looms, etc. Download PDF

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US2436438A
US2436438A US645832A US64583246A US2436438A US 2436438 A US2436438 A US 2436438A US 645832 A US645832 A US 645832A US 64583246 A US64583246 A US 64583246A US 2436438 A US2436438 A US 2436438A
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yarn
body portion
foot
leg
detector
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Kyner Julia
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/31Textiles threads or artificial strands of filaments

Definitions

  • This invention relates to stop motions for textile machinery, wherein single yarns or threads, or a multiplicity thereof, are normally adapted to be drawn or pulled in a predetermined direction axially or longitudinally thereoi and maintained under a substantially uniform predetermined tension as each yarn travels axially be-' tween two relatively distant points, as will be round in winding, twisting, warping, knitting,
  • the present invention relates particularly to a. device for detecting the development of excessive slack in a running thread or yarn, or the break-. ing of the yarn under excessive tension, or for other reasons such as weak spots present in the structure of theyarn itself, etc.
  • Fig. l is a diagrammatic perspective view. partly in section, illustrating the general construction and principles of operation of the device;
  • Fig. 2 is an enlarged view, partly in section, oi the detecting device per se;-
  • Fig. 3 is a face view of the structure illustrated in Fig. 2, showing the traveling yarn in cross section; and 8 Figs. 4 and 5 illustrate modifications of the invention.
  • a thread or yarn is is shown as being drawn from a supply package, such as a spool or bobbin g, which is rotatably mounted on a supporting spindle 2.
  • a supply package such as a spool or bobbin g
  • Any suitable friction means may be employed to retard the rotation of the package 11 on its supporting spindle z to place the yarn a: under predetermined tension as it is drawn from the package 1/.
  • friction devices are-common in the art and form no part of the present invention, no illustration thereof has been made in the present drawing.
  • the yarn or thread a is adapted to be drawn longitudinally in the direction of the arrows a, a,
  • the yarn :r is laid over and is adapted to bear on and be'supported and guided by a pair of relatively spaced rods or rollers b, b, whereby a predetermined section 11 of the traveling yarn or is maintained in a substantially straight line.
  • the detector element I of the present invention comprises a piece of highly resilient metal such, for example as beryllium copper of spring quality, bent into the general shape of a sickle and consisting of an arcuate body section 2, a substantially straight leg portion 8 connected by a short radius curved or fillet portion 4, by which flexibility between the parts 2 and 3 is provided, and which will permit said parts to move toward or away from each other under operating con- 'ditions hereinafter described.
  • the leg portion 3 of the detector I is connected by a small radius curved portion 5 with a straight foot portion 6 'which is adapted to be rigidly mounted in a support I.
  • the detecting device I and particularly the arcuate head portion 2 thereof, is adapted to be mounted and to operate between a pair of parallel reed or siey blades or fingers 8, 8, which are normally adapted to limit lateral movement of the-running thread or yarn a: as it travels in the direction of the arrows a, a.
  • the lower end portions of the guide fingers 8, 8 are also rigidly mounted in the support I in the same plane with or in a plane parallel to and preferably immediately adjacent the plane of the foot 6 of the detector l.
  • the foot 6 of the detector l and the'ends 9, 9 of the fingers 8, 8 may be secured to the support I in any desired manner, it is preferable to cast the support I in the form of a block around the foot 6 and ends 9, 9, of the fingers 8, 8, whereby these elements are maintained in rigid fixed relation to each other.
  • the arcuate body portion 2 of the detector l is bent into a V- shape cross sectional form, to provide a trough i0 for receiving and supporting the yarn :r.
  • the diverging arms H, II of the V-shape l trough Ill in each instance, substantially fill the space between the fingers 8, 8 with just sufficient clearance therebetween to prevent binding of the body portion 2 of the detector i between the laterally spaced fingers 8, 8.
  • a plurality or multiplicity oi yarns a are arranged side by side, such as the warps of. a loom or a warp knitting machine,
  • each group would be leaded into a single block 1, if desired.
  • the supporting blocks 1, in which the detec tors I, I and fingers 8, 8 are rigidly secured, are
  • a suitable support such as a bus bar 12, as by a bolt or screw I3, for example, with the bus bar I2 grounded in any suitable manner in the machine in which the detectors I, I are employed, said bus bar forming one side of an electric circuit in which the detector I is included.
  • the second side of the electrical circuit is formed by the bus bar It which is suitably supported in the machine by a plurality of insulator lugs or brackets I5.
  • the bus bar I4 is of L-shaped cross section with one leg or flange I8 thereof secured in the insulator lugs I and.
  • the bus bar I4 is adapted to be connected by a. conductor ill with one side of a relay 2Uwhich constitutes a part of an electrical stop motion circuit forming no part of the present invention.
  • the second side of the relay circuit is grounded in the machine, as indicated at 2
  • the tension of the yarn a presses the body 2 toward the foot 6, flexing the elements 2 and 3 at the fillets 4 and 5; and the frictional drag of the yarn in the groove [0 rocks the detector l in the direction of travel of the yarn, flexing it at the fillet 5. thereby holding the neck 4 out of contact with the edge I! of the leg I8 of the bus bar I4. thereby forming a c rcuit openirig gap G between the detector I and the bus bar I Should the thread or yarn a break or become excessively slack, the detector I will assume the position shown in broken lines in Fig. 2, with the neck or fillet portion 4 of the detector I making contact with the edge ll of the bus bar I4, thereby closing the detector circuit and causing the relay 2D to function and effect stoppin of the machine in which the yarn a: is operating.
  • the groups of detectors I, I may be punched, out,
  • foot 6b may be corrugated, as shown at 26 in Fig. l
  • a slack and breakage detector for an axially running normally tensioned rectil near yarn comprising an inherently resilient unitary element including a foot a leg and a body portion successively interconnected and relatively angularly arranged in a common plane coincident with said yarn, guide means at opposite sides respectively of said body portion to insure positioning and re tention of said yarn thereon, means for rigidly supporting said foot i predetermined relation to said yarn to effect flexing of said element to and retention of said element in an inactive position in said plane by said yarn when running normally therein, and means intersecting said plane for engagement with sa d element under reactive inherent reverse flexing thereof when released-by slack or breakage developing in said yarn, whereby the running of said yarn will be discontinued.
  • ment including a foot a' leg and a body portion successively interconnected and relatively angularly arranged in a common plane coincident with said yarn, said body portion being grooved longitudinally in said plane to receive said yarn, means for rigidly supporting said foot in predetermined relation to said yarn to eflect flexing of said element to and retention or said element in an inactive position in said plane by said yarn when running normally therein, and means intersecting said plane for engagement with said element under reactive inherent reverse flexing thereof when released by slack or breakage'developing in said yarn, whereby the running of said yarn will be discontinued.
  • a slack and breakage detector for an axially running normally tensioned rectilinear yarn comprising an inherently resilient unitary element including a foot a leg and a body portion successively interconnected and relatively angularly arranged in a common plane coincident with said yarn, said body portion being grooved longitudinally in said plane to receive said yarn, guide means at opposite sides respectively of said body portion to insure positioning of said yarn in the longitudinal groove of said body portion, means for rigidly supporting said foot in predetermined relation to said yarn to effect flexing of said element to and retention of said element in an inactive position in said plane by said yarn when running normally therein, and means intersecting said plane for engagement with said element under reaction inherent reverse flexing thereof when released by slack or breakage developing in said yarn, whereby the running of said yarn will be discontinued.
  • a slack and breakage detector for an axially running normally tensioned rectilinear yarn comprising an inherently resilient unitary element including a foot a leg and a body portion successively interconnected and relatively angularly arranged in a common plane coincident with said yarn, said body portion being longitudinally curved and grooved in said plane to receive and retain said yarn therein, means for rigidly supporting said foot in predetermined relation to said yarn to efiect flexing of said element to and retention of said element in an inactive position in said plane by said yarn when running normally therein, and means intersecting said plane for engagement with said element under reactive inherent reverse flexing thereof when released by slack or breakage developing in said yarn, whereby the running of said yarn will be discontinued;
  • An inherently resilient yarn contacting element comprising a longitudinally arcuate body portion, of substantially V-shaped in cross-section adapted to receive and guide a strand of yarn, a leg portion connected at one of its ends to one end of said body portion and disposed at an acute angle to said body portion in a common plane therewith, and a foot portion connected to the opposite end of said leg portion for mounting said element to afiord flexing of said body and leg portions relative to eachother and with respect to said foot portion.
  • An inherently resilient yarn contacting element comprising a longitudinally arcuate body portion grooved substantially throughout its length to receive'and prevent lateral shifting of a strand of yarn relative thereto, a leg portion connected at one of. its ends to one end of said body portion and disposed at an acute angle to said said leg portion for mounting said element to aflord flexing of said body and leg portions relative to each other and with respect to said foot portion.
  • An inherently resilient yarn contacting element comprising a longitudinally arcuate body portion of V-shaped cross section, a leg portion of rectangular cross section connected at one of corrugated and offset between said leg portions for the purpose described.
  • a slack and breakage detector for an axially running normally tensioned rectilinear yarn comprising an inherently resilient unitary element including a foot, a leg and a body portion successively interconnected with said body portion being grooved longitudinally to receive said its ends-to one of said body portion and disposed portion of substantially V-shape in cross-sec-' tion adapted to receive and guide a strand of yarn, a leg portion connected at one of its ends to one end of said body portion and disposed at an acute angle to said body portion in a common plane therewith, and a foot portion connected to the opposite end of said leg portion and disposed at an obtuse angle with respect thereto and disposed within said common plane for mounting said element to afiord flexing of said body and leg portions relative to each other and with respect to said foot portion, a
  • An inherently resilient yarn contactin element comprising a longitudinally arcuate body portion of substantially V-shape in cross-section adapted to receive and guide a strand of yarn, a leg portion connected at one of itsv ends to one end of said body portion and disposed at an acute angle to said body portion in a common plane therewith, a short radius fillet portion of rectangular cross section intermediate said body and leg portions and connected at its opposite ends respectively thereto, and a foot portion connected to the opposite end of saidleg portion for mounting said element to afiord flexing of said body and leg portions-relative to each other and with respect to said foot portion.
  • a structure comprising a plurality of yarn contacting elements arranged in laterally spaced relation and each including a longitudinally arcuate body portion, a leg portion connectedjat-one of its ends to one end of said body portion, and a common foot portion connected to the opposite end of each of said leg portions of said plurality of said elements, said common foot portion being yarn, means for rigidly supporting said foot in predetermined relation to said yarn to efiect flexing of said element to and retention of said element in an inactive position by said yarn when running therein, and means engageable by said element under reactive inherent reverse flexing thereof when released by slack or breakage developing in said yarn, whereby the running of said yarn will be discontinued.
  • a slack and breakage detector for an axially running normally tensioned rectilinear yarn comprising an inherently resilient unitary element including a foot, a leg and a body portion successively interconnected and relatively angularly arranged -with said body portion being grooved longitudinally to receive said yarn, guide means at opposite sides respectively of said body portion to insure positioning of said yarn in the longitudinal groove of said body portion, means for rigidly supporting said foot in predetermined relation to said yarn to effect flexing of said element to and retention of said element in an inactive position by said yarn when running therein, and means positioned for engagement by said element under reactive inherent reverse flexing thereof when released by slack or breakage de-' veloping in said yarn, whereby the running of said yarn will be discontinued.

Description

Feb. 24, 1948. J. KYNER STOP MOTION FOR L00MS,ETG.
Filed Feb. 6.1946
Patented Feb. 24, 1948.
UNITED STATES PATENT OFFICE STOP MOTIJlfZi'flfLOOMS, ETC.
Julia Kyner, Zionsville. Pa.
Application February 8, 1948, Serial No. 845,832
12 Claims. 1-
This invention relates to stop motions for textile machinery, wherein single yarns or threads, or a multiplicity thereof, are normally adapted to be drawn or pulled in a predetermined direction axially or longitudinally thereoi and maintained under a substantially uniform predetermined tension as each yarn travels axially be-' tween two relatively distant points, as will be round in winding, twisting, warping, knitting,
weaving, and other machinery employed in the textile industry. I
The present invention relates particularly to a. device for detecting the development of excessive slack in a running thread or yarn, or the break-. ing of the yarn under excessive tension, or for other reasons such as weak spots present in the structure of theyarn itself, etc.
In the accompanying drawing:
Fig. l is a diagrammatic perspective view. partly in section, illustrating the general construction and principles of operation of the device;
Fig. 2 is an enlarged view, partly in section, oi the detecting device per se;-
Fig. 3 is a face view of the structure illustrated in Fig. 2, showing the traveling yarn in cross section; and 8 Figs. 4 and 5 illustrate modifications of the invention.
'In Fig. 1 of the drawing, a thread or yarn is is shown as being drawn from a supply package, such as a spool or bobbin g, which is rotatably mounted on a supporting spindle 2. Any suitable friction means may be employed to retard the rotation of the package 11 on its supporting spindle z to place the yarn a: under predetermined tension as it is drawn from the package 1/. As such friction devices are-common in the art and form no part of the present invention, no illustration thereof has been made in the present drawing.
The yarn or thread a: is adapted to be drawn longitudinally in the direction of the arrows a, a,
under a substantially uniform tension, by the' weaving of the thread a: in a loom, the formationef the yarn into loops in a knitting machine, or the winding of the thread onto a warp beam, etc., against the action of the friction device which retards the rotation'of said package y, as previously noted.
Preferably, in the course 01 its axial travel. the yarn :r is laid over and is adapted to bear on and be'supported and guided by a pair of relatively spaced rods or rollers b, b, whereby a predetermined section 11 of the traveling yarn or is maintained in a substantially straight line.
The detector element I of the present invention comprises a piece of highly resilient metal such, for example as beryllium copper of spring quality, bent into the general shape of a sickle and consisting of an arcuate body section 2, a substantially straight leg portion 8 connected by a short radius curved or fillet portion 4, by which flexibility between the parts 2 and 3 is provided, and which will permit said parts to move toward or away from each other under operating con- 'ditions hereinafter described. The leg portion 3 of the detector I is connected by a small radius curved portion 5 with a straight foot portion 6 'which is adapted to be rigidly mounted in a support I. v
The detecting device I, and particularly the arcuate head portion 2 thereof, is adapted to be mounted and to operate between a pair of parallel reed or siey blades or fingers 8, 8, which are normally adapted to limit lateral movement of the-running thread or yarn a: as it travels in the direction of the arrows a, a. The lower end portions of the guide fingers 8, 8 are also rigidly mounted in the support I in the same plane with or in a plane parallel to and preferably immediately adjacent the plane of the foot 6 of the detector l. While the foot 6 of the detector l and the'ends 9, 9 of the fingers 8, 8 may be secured to the support I in any desired manner, it is preferable to cast the support I in the form of a block around the foot 6 and ends 9, 9, of the fingers 8, 8, whereby these elements are maintained in rigid fixed relation to each other.
Intermediate the fingers 8, 8, the arcuate body portion 2 of the detector l is bent into a V- shape cross sectional form, to provide a trough i0 for receiving and supporting the yarn :r. The diverging arms H, II of the V-shape l trough Ill, in each instance, substantially fill the space between the fingers 8, 8 with just sufficient clearance therebetween to prevent binding of the body portion 2 of the detector i between the laterally spaced fingers 8, 8.
In instances where a plurality or multiplicity oi yarns a: are arranged side by side, such as the warps of. a loom or a warp knitting machine,
etc., there would be a detector l for each yarn or.
sley' points 8, 8 would be divided into groups and.
each group would be leaded into a single block 1, if desired. a
The supporting blocks 1, in which the detec tors I, I and fingers 8, 8 are rigidly secured, are
adapted to be secured to a suitable support, such as a bus bar 12, as by a bolt or screw I3, for example, with the bus bar I2 grounded in any suitable manner in the machine in which the detectors I, I are employed, said bus bar forming one side of an electric circuit in which the detector I is included.
The second side of the electrical circuit is formed by the bus bar It which is suitably supported in the machine by a plurality of insulator lugs or brackets I5.
In the present instance, the bus bar I4 is of L-shaped cross section with one leg or flange I8 thereof secured in the insulator lugs I and.
with the edge I! of the second leg ill of the bus bar disposed adjacent the small radius fillet or neck portion 4 of the detector I.
The bus bar I4 is adapted to be connected by a. conductor ill with one side of a relay 2Uwhich constitutes a part of an electrical stop motion circuit forming no part of the present invention. The second side of the relay circuit is grounded in the machine, as indicated at 2|, to which the bus bar I! is also grounded.
In operation, the tension of the yarn a: as it is running longitudinally through and in contact with the base of the V-shaped trough I0, presses the body 2 toward the foot 6, flexing the elements 2 and 3 at the fillets 4 and 5; and the frictional drag of the yarn in the groove [0 rocks the detector l in the direction of travel of the yarn, flexing it at the fillet 5. thereby holding the neck 4 out of contact with the edge I! of the leg I8 of the bus bar I4. thereby forming a c rcuit openirig gap G between the detector I and the bus bar I Should the thread or yarn a break or become excessively slack, the detector I will assume the position shown in broken lines in Fig. 2, with the neck or fillet portion 4 of the detector I making contact with the edge ll of the bus bar I4, thereby closing the detector circuit and causing the relay 2D to function and effect stoppin of the machine in which the yarn a: is operating.
In instances where a plurality of detectors I are employed and cast in each of the blocks 1, the groups of detectors I, I may be punched, out,
or otherwise formed from a single strip of metal,
foot 6b may be corrugated, as shown at 26 in Fig. l
5, to receive the points 8, 8 prior to casting of the block. if desired.
I claim:
1. A slack and breakage detector for an axially running normally tensioned rectil near yarn, comprising an inherently resilient unitary element including a foot a leg and a body portion successively interconnected and relatively angularly arranged in a common plane coincident with said yarn, guide means at opposite sides respectively of said body portion to insure positioning and re tention of said yarn thereon, means for rigidly supporting said foot i predetermined relation to said yarn to effect flexing of said element to and retention of said element in an inactive position in said plane by said yarn when running normally therein, and means intersecting said plane for engagement with sa d element under reactive inherent reverse flexing thereof when released-by slack or breakage developing in said yarn, whereby the running of said yarn will be discontinued.
2. A slack and breakage detector for an axially running normally tensioned rectilinear yarn,
ment including a foot a' leg and a body portion successively interconnected and relatively angularly arranged in a common plane coincident with said yarn, said body portion being grooved longitudinally in said plane to receive said yarn, means for rigidly supporting said foot in predetermined relation to said yarn to eflect flexing of said element to and retention or said element in an inactive position in said plane by said yarn when running normally therein, and means intersecting said plane for engagement with said element under reactive inherent reverse flexing thereof when released by slack or breakage'developing in said yarn, whereby the running of said yarn will be discontinued.
3. A slack and breakage detector for an axially running normally tensioned rectilinear yarn, comprising an inherently resilient unitary element including a foot a leg and a body portion successively interconnected and relatively angularly arranged in a common plane coincident with said yarn, said body portion being grooved longitudinally in said plane to receive said yarn, guide means at opposite sides respectively of said body portion to insure positioning of said yarn in the longitudinal groove of said body portion, means for rigidly supporting said foot in predetermined relation to said yarn to effect flexing of said element to and retention of said element in an inactive position in said plane by said yarn when running normally therein, and means intersecting said plane for engagement with said element under reaction inherent reverse flexing thereof when released by slack or breakage developing in said yarn, whereby the running of said yarn will be discontinued.
4. A slack and breakage detector for an axially running normally tensioned rectilinear yarn, comprising an inherently resilient unitary element including a foot a leg and a body portion successively interconnected and relatively angularly arranged in a common plane coincident with said yarn, said body portion being longitudinally curved and grooved in said plane to receive and retain said yarn therein, means for rigidly supporting said foot in predetermined relation to said yarn to efiect flexing of said element to and retention of said element in an inactive position in said plane by said yarn when running normally therein, and means intersecting said plane for engagement with said element under reactive inherent reverse flexing thereof when released by slack or breakage developing in said yarn, whereby the running of said yarn will be discontinued;
5. An inherently resilient yarn contacting element comprising a longitudinally arcuate body portion, of substantially V-shaped in cross-section adapted to receive and guide a strand of yarn, a leg portion connected at one of its ends to one end of said body portion and disposed at an acute angle to said body portion in a common plane therewith, and a foot portion connected to the opposite end of said leg portion for mounting said element to afiord flexing of said body and leg portions relative to eachother and with respect to said foot portion. j p
6. An inherently resilient yarn contacting element comprising a longitudinally arcuate body portion grooved substantially throughout its length to receive'and prevent lateral shifting of a strand of yarn relative thereto, a leg portion connected at one of. its ends to one end of said body portion and disposed at an acute angle to said said leg portion for mounting said element to aflord flexing of said body and leg portions relative to each other and with respect to said foot portion.
7. An inherently resilient yarn contacting elementcomprising a longitudinally arcuate body portion of V-shaped cross section, a leg portion of rectangular cross section connected at one of corrugated and offset between said leg portions for the purpose described.
11. A slack and breakage detector for an axially running normally tensioned rectilinear yarn, comprising an inherently resilient unitary element including a foot, a leg and a body portion successively interconnected with said body portion being grooved longitudinally to receive said its ends-to one of said body portion and disposed portion of substantially V-shape in cross-sec-' tion adapted to receive and guide a strand of yarn, a leg portion connected at one of its ends to one end of said body portion and disposed at an acute angle to said body portion in a common plane therewith, and a foot portion connected to the opposite end of said leg portion and disposed at an obtuse angle with respect thereto and disposed within said common plane for mounting said element to afiord flexing of said body and leg portions relative to each other and with respect to said foot portion, a
9. An inherently resilient yarn contactin element comprising a longitudinally arcuate body portion of substantially V-shape in cross-section adapted to receive and guide a strand of yarn, a leg portion connected at one of itsv ends to one end of said body portion and disposed at an acute angle to said body portion in a common plane therewith, a short radius fillet portion of rectangular cross section intermediate said body and leg portions and connected at its opposite ends respectively thereto, and a foot portion connected to the opposite end of saidleg portion for mounting said element to afiord flexing of said body and leg portions-relative to each other and with respect to said foot portion.
10. A structure, comprising a plurality of yarn contacting elements arranged in laterally spaced relation and each including a longitudinally arcuate body portion, a leg portion connectedjat-one of its ends to one end of said body portion, and a common foot portion connected to the opposite end of each of said leg portions of said plurality of said elements, said common foot portion being yarn, means for rigidly supporting said foot in predetermined relation to said yarn to efiect flexing of said element to and retention of said element in an inactive position by said yarn when running therein, and means engageable by said element under reactive inherent reverse flexing thereof when released by slack or breakage developing in said yarn, whereby the running of said yarn will be discontinued.
12. A slack and breakage detector for an axially running normally tensioned rectilinear yarn, comprising an inherently resilient unitary element including a foot, a leg and a body portion successively interconnected and relatively angularly arranged -with said body portion being grooved longitudinally to receive said yarn, guide means at opposite sides respectively of said body portion to insure positioning of said yarn in the longitudinal groove of said body portion, means for rigidly supporting said foot in predetermined relation to said yarn to effect flexing of said element to and retention of said element in an inactive position by said yarn when running therein, and means positioned for engagement by said element under reactive inherent reverse flexing thereof when released by slack or breakage de-' veloping in said yarn, whereby the running of said yarn will be discontinued.
, JULIA KYNER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS
US645832A 1946-02-06 1946-02-06 Stop motion for looms, etc. Expired - Lifetime US2436438A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825214A (en) * 1955-05-25 1958-03-04 Pernick David Stop mechanism control means for knitting machines
US3723990A (en) * 1971-08-25 1973-03-27 Crompton & Knowles Corp Strand monitor
US4275574A (en) * 1978-06-19 1981-06-30 Muns Joaquin M Stop mechanism for Rachel or Ketten type knitting machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US103471A (en) * 1870-05-24 And loop-retaining comb for knitting-ma
US811373A (en) * 1905-02-01 1906-01-30 Thomas A B Carver Warp stop-motion.
AT30291B (en) * 1906-03-28 1907-10-10 Wilhelm Riedel Chain thread monitor.
US1737218A (en) * 1926-12-15 1929-11-26 Coombes William Warp or straight-bar knitting machine and the production of fabrics thereon
US1956486A (en) * 1929-08-19 1934-04-24 Ernst Frank Stop mechanism for looms
US2400064A (en) * 1943-11-03 1946-05-14 Bassist Rudolph Yarn-control mechanism for warp knitting machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US103471A (en) * 1870-05-24 And loop-retaining comb for knitting-ma
US811373A (en) * 1905-02-01 1906-01-30 Thomas A B Carver Warp stop-motion.
AT30291B (en) * 1906-03-28 1907-10-10 Wilhelm Riedel Chain thread monitor.
US1737218A (en) * 1926-12-15 1929-11-26 Coombes William Warp or straight-bar knitting machine and the production of fabrics thereon
US1956486A (en) * 1929-08-19 1934-04-24 Ernst Frank Stop mechanism for looms
US2400064A (en) * 1943-11-03 1946-05-14 Bassist Rudolph Yarn-control mechanism for warp knitting machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825214A (en) * 1955-05-25 1958-03-04 Pernick David Stop mechanism control means for knitting machines
US3723990A (en) * 1971-08-25 1973-03-27 Crompton & Knowles Corp Strand monitor
US4275574A (en) * 1978-06-19 1981-06-30 Muns Joaquin M Stop mechanism for Rachel or Ketten type knitting machine

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