US3253269A - Device for signalling any change in the pull to which a yarn or the like is subjected - Google Patents

Device for signalling any change in the pull to which a yarn or the like is subjected Download PDF

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Publication number
US3253269A
US3253269A US324470A US32447063A US3253269A US 3253269 A US3253269 A US 3253269A US 324470 A US324470 A US 324470A US 32447063 A US32447063 A US 32447063A US 3253269 A US3253269 A US 3253269A
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United States
Prior art keywords
lever
yarn
alarm
counterweighed
frame
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Expired - Lifetime
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US324470A
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English (en)
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Ratti Michele
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Individual
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G01N3/06—Special adaptations of indicating or recording means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/40—Applications of tension indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2551/00—Means for control to be used by operator; User interfaces
    • B65H2551/20—Display means; Information output means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B65H2555/13—Actuating means linear magnetic, e.g. induction motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/0202—Control of the test
    • G01N2203/021—Treatment of the signal; Calibration

Definitions

  • the device according to the present invention allows to check during the operation that the pull to which the yarn is subjected, steadily be maintained at the established value and to adjust the pull at the beginning of the operation, whereby, if for any accidental cause said pull should diminish, the signalling members would intervene at once to signal by means of visual or acoustical means the operator, for his immediate attention.
  • the device according to the invention is characterized by two pulleys, or equivalent means, arranged along the path of the yarn, the first of which having its journal pin secured on the supporting frame, and the second pulley having its pivot secured on the end'of a counterweighed lever, in the way of a steelyard; to the pivot pin of said lever there being applied cams or equivalent means, which, inthe two extreme swing limiting positions of the lever, which are preferably made bistable, respectively open and close at least one alarm circuit, on said lever there being mounted two slidable weights, one of which serves for the initial calibration of the device, and the other one to establish the .pull value on the yarn, at which the alarm circuit has to intervene.
  • FIGURE 1 is a perspective view of the device
  • FIGURE 2 is a schematic front view of the device, in the operating position.
  • FIGURE 3 is a schematic front view in the alarm position.
  • the device includes the two pulleys 1 and 2, arranged along the path of the yarn 3, moving in the direction shown by the arrows 4 and 5.
  • the pulley 1 is secured on the supporting frame 6 of the device, while the pulley 2 is secured on the end of the lever 7, pivoted in 8 and counterweighed in the way of a steelyard by the two slidable weights 9 and 10; the weight 9 serves for the initial calibration, while the weight 10 serves to determine the value, in grams, of the pull on the yarn at which the alarm circuit has to intervene, value that can be read on the scale 11 of the lever 7.
  • the lamp 15 is protected by a cover 17 (FIGURE 1), preferably made of a red, transparent material, for a luminous remote indication.
  • the same circuit may include also a bell, a buzzer, or other acoustical means for signaling.
  • a second cam identical with the one in 12, is arranged coaxial and parallel to the first one, and is shown for convenience in the upper part of FIGURE 3 in dotted lines.
  • the main lamp in the room is out, this means that all the devices are in their normal condition; if it lights up it means that one or more devices are not functioning properly and it will sufiice to inspect all of the machines to easily findwhere the trouble is. i Since the lamps of the single devices are generally aligned and arranged in an easily visible position, it will sufiice a glance to ascertain on which machine has occurred the failure.
  • the secondary small lever 20, pivoted in 21, with its lug 20 serves to keep moved to its lifted position, shown in FIGURE 1, the steelyardlike lever 7, when it is wished to take the device out of service.
  • the small lever 26 is pivoted to a position shown in FIGURE 2 where the lug 20' no longer keeps the lever 7 in its lifted position.
  • the operation is as follows: Be it assumed that the yarn 3 to be controlled (FIGURES 2 and 3), has to have a minimum pull of 8 grams. Then, the weight 10 is moved so as to correspond to the scale value 8 on the scale 11 (FIGURE 2). The whole is set so that as long as the pull T, urging upwardly the yarn 5 (FIGURE 2) is larger than or equal to 8 grams, the lever takes up a position such as to leave the contacts 13-14 and 17-18 open.
  • the magnet 23 is attracted by the core 24, fast with the device frame, thus making bistable the posit-ion of the lever 7, in the sense that from its stable normal position, upon unbalancing, the lever is definitely brought to its second stable alarm position.
  • bistable device instead of magnetically be made bistable through mechanical means for instance by a spring placed in a condition of unstable balance, as it has already been applied in certain types of electric breakers.
  • a device for signalling the occurrence of a predetermined magnitude of tension acting on a yarn comprising a supporting frame, a counterweighed lever having calibration marks, pivot means pivotally supporting said lever on said frame, said lever movable from an operating position to an alarm position, first and second yarn guide means for guiding the yarn, said first yarn guide means being mounted on said supporting frame in order to provide a constant path for the yarn, said second yarn guide means being connected adjacent one end of said counterweighed lever, weight means movably mounted on said lever to counterweight said lever and balance the tension acting on the yarn to normally hold said lever in said operating position, said lever being pivotal to said alarm position upon the occurrence of a predettermined magnitude of tension on the yarn, magnet means associated with said lever said frame for attracting said counterweighed lever to said frame when said lever is in said alarm position, said weight means being selectively movable on said lever to allow calibration of the predetermined magnitude of the tension acting on said yarn, and an alarm circuit operable in response to movement of said lever to said alarm position to indicate the occurrence
  • said alarm circuit comprises two cam means coaxially connected to said pivot of said counterweighed lever, each of said cam means being movable from a first position to a second position in accordance with movement of said lever :from said operating position to said alarm position, two pairs'of electric contact means having open and closed positions, one of said pairs of contact means being disposed adjacent each of said cam means, each of said cam means closing one pair of said electric contact means when said counterweighed lever is in said alarm position, two alarm means, each of said alarm means being activated by the closing of one of said electric contact means to indicate the occurrence of a predetermined magnitude of the tension acting on said yarn.
  • a device for signalling the occurrence of a predetermined magnitude of tension acting on a yarn comprising a supporting frame, a counterweighed lever having calibration marks, pivot means pivotally supporting said lever on said frame, said lever movable from an inclined operating position to a horizontal alarm position, first and second pulley means for guiding the yarn, said first pulley means being pivotally mounted on said supporting frame in order to provide a constant position for the path of'the yarn, said second pulley means being pivotally connected to an end of said counterweighed lever, a pair of weight means being slidably mounted on said lever on opposite sides of said pivot to counterweigh said lever, the yarn passing under said second pulley so that tension acting on the yarn normally holds said lever in said inclined operating position, said lever beng pivoted by gravity to said horizontal alarm position upon the occurrence of a predetermined magnitude of tension on the yarn, said weight means being selectively slidable on said lever to allow calibration of the predetermined magnitude of the tension acting on said yarn, magnet means being attached to an end of said lever opposite from

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
US324470A 1963-09-05 1963-11-18 Device for signalling any change in the pull to which a yarn or the like is subjected Expired - Lifetime US3253269A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1817463 1963-09-05
IT3872163 1963-09-05

Publications (1)

Publication Number Publication Date
US3253269A true US3253269A (en) 1966-05-24

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ID=26326985

Family Applications (1)

Application Number Title Priority Date Filing Date
US324470A Expired - Lifetime US3253269A (en) 1963-09-05 1963-11-18 Device for signalling any change in the pull to which a yarn or the like is subjected

Country Status (7)

Country Link
US (1) US3253269A (is)
BE (1) BE648893A (is)
CH (1) CH390749A (is)
DE (1) DE1214901B (is)
FR (1) FR1374810A (is)
GB (1) GB1007619A (is)
NL (1) NL300842A (is)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343008A (en) * 1964-10-12 1967-09-19 Allied Control Co Filament tension monitoring devices
US3521265A (en) * 1967-04-04 1970-07-21 Allied Control Co Electromagnetic toggle filament tension monitoring device
US3848434A (en) * 1973-03-05 1974-11-19 Control Switch Inc Yarn detector switch-lower
US3980988A (en) * 1974-11-27 1976-09-14 Spizzo Anthony M Alarm system for vehicle shoulder harness
US4075445A (en) * 1975-04-15 1978-02-21 Evolution Sa Thread monitoring switch for textile machines having magnet biasing lever to prevent any annoying thread flutter
US4401865A (en) * 1980-09-12 1983-08-30 Loewy Robertson Engineering Co. Ltd. Strip material outer turn proximity switch detection apparatus
US4418491A (en) * 1978-07-13 1983-12-06 Christiansen Thorbjoern Automatic angling machine
CN103954472A (zh) * 2014-04-23 2014-07-30 北京化工大学 一种纤维复丝线密度的测试装置及测试方法
CN108190640A (zh) * 2017-12-28 2018-06-22 宁波雯泽纺织品有限公司 纺织纤维断线检测装置
CN113428725A (zh) * 2021-05-27 2021-09-24 赵爱连 一种基于重力控制的纱线给进器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110376072B (zh) * 2019-07-17 2022-05-24 徐州祥华丝绸有限公司 一种丝织品具有质量检测拉伸检测的测试仪设备

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1203699A (en) * 1916-03-25 1916-11-07 Cooper Mfg Company Electric-circuit-closing device.
US1635478A (en) * 1926-03-01 1927-07-12 James A Hudson Automatic switch for film rewinders
FR788906A (fr) * 1934-04-17 1935-10-19 Klangfilm Gmbh Dispositif pour l'enregistrement, la reproduction ou le tirage de photophonogrammes
US2074237A (en) * 1935-05-11 1937-03-16 Marathon Paper Mills Co Automatic break-off mechanism
US2281188A (en) * 1940-07-17 1942-04-28 Carl B White Stop motion
US2744174A (en) * 1953-02-17 1956-05-01 Triplite Ltd Yarn detecting mechanism for textile machine stop motions
US2824184A (en) * 1957-04-29 1958-02-18 James E Mandleco Switch actuating mechanism for hay balers
US3044052A (en) * 1959-11-23 1962-07-10 Marsh John Cleworth Means for indicating or utilizing changes in tension of webs and the like
US3168881A (en) * 1961-10-31 1965-02-09 Carter William Co Sewing machine stop motion

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967171C (de) * 1954-08-27 1957-10-17 Siemens Ag Einrichtung zur automatischen Anzeige von Zugspannungsdifferenzen innerhalb eines Aderpaares bei der Herstellung von verdrillten Fernmeldekabeladergruppen, insbesondere Sternvierern
US2872808A (en) * 1955-10-06 1959-02-10 Edward P Ney Tension component measuring means
DE1020699B (de) * 1956-01-16 1957-12-12 Siemens Ag Einrichtung zur automatischen Anzeige von Zugspannungsdifferenzen innerhalb eines Aderpaares bei der Herstellung von verdrillten Fernmeldekabeladergruppen, insbesondere Sternvierern

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1203699A (en) * 1916-03-25 1916-11-07 Cooper Mfg Company Electric-circuit-closing device.
US1635478A (en) * 1926-03-01 1927-07-12 James A Hudson Automatic switch for film rewinders
FR788906A (fr) * 1934-04-17 1935-10-19 Klangfilm Gmbh Dispositif pour l'enregistrement, la reproduction ou le tirage de photophonogrammes
US2074237A (en) * 1935-05-11 1937-03-16 Marathon Paper Mills Co Automatic break-off mechanism
US2281188A (en) * 1940-07-17 1942-04-28 Carl B White Stop motion
US2744174A (en) * 1953-02-17 1956-05-01 Triplite Ltd Yarn detecting mechanism for textile machine stop motions
US2824184A (en) * 1957-04-29 1958-02-18 James E Mandleco Switch actuating mechanism for hay balers
US3044052A (en) * 1959-11-23 1962-07-10 Marsh John Cleworth Means for indicating or utilizing changes in tension of webs and the like
US3168881A (en) * 1961-10-31 1965-02-09 Carter William Co Sewing machine stop motion

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343008A (en) * 1964-10-12 1967-09-19 Allied Control Co Filament tension monitoring devices
US3521265A (en) * 1967-04-04 1970-07-21 Allied Control Co Electromagnetic toggle filament tension monitoring device
US3848434A (en) * 1973-03-05 1974-11-19 Control Switch Inc Yarn detector switch-lower
US3980988A (en) * 1974-11-27 1976-09-14 Spizzo Anthony M Alarm system for vehicle shoulder harness
US4075445A (en) * 1975-04-15 1978-02-21 Evolution Sa Thread monitoring switch for textile machines having magnet biasing lever to prevent any annoying thread flutter
US4418491A (en) * 1978-07-13 1983-12-06 Christiansen Thorbjoern Automatic angling machine
US4401865A (en) * 1980-09-12 1983-08-30 Loewy Robertson Engineering Co. Ltd. Strip material outer turn proximity switch detection apparatus
CN103954472A (zh) * 2014-04-23 2014-07-30 北京化工大学 一种纤维复丝线密度的测试装置及测试方法
CN108190640A (zh) * 2017-12-28 2018-06-22 宁波雯泽纺织品有限公司 纺织纤维断线检测装置
CN113428725A (zh) * 2021-05-27 2021-09-24 赵爱连 一种基于重力控制的纱线给进器
CN113428725B (zh) * 2021-05-27 2022-06-10 杭州一舟实业有限公司 一种基于重力控制的纱线给进器

Also Published As

Publication number Publication date
GB1007619A (en) 1965-10-13
NL300842A (is)
BE648893A (is) 1964-10-01
FR1374810A (fr) 1964-10-09
CH390749A (it) 1965-04-15
DE1214901B (de) 1966-04-21

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