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US3752170A - Method and apparatus for cleaning calibrated nozzles - Google Patents

Method and apparatus for cleaning calibrated nozzles Download PDF

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Publication number
US3752170A
US3752170A US00084632A US3752170DA US3752170A US 3752170 A US3752170 A US 3752170A US 00084632 A US00084632 A US 00084632A US 3752170D A US3752170D A US 3752170DA US 3752170 A US3752170 A US 3752170A
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pressure
measuring line
surge
line
valve means
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US00084632A
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E Murbach
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Zellweger Uster AG
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Zellweger Uster AG
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/22—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to presence of irregularities in running material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B65H63/062—Electronic slub detector
    • B65H63/067—Electronic slub detector using fluid sensing means, e.g. acoustic
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/53—Auxiliary process performed during handling process for acting on performance of handling machine
    • B65H2301/531—Cleaning parts of handling machine
    • 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

Definitions

  • ABSTRACT Queisser Assistant Examiner-Frederick Shoon Attorney-Craig, Antonelli and Hill [57] ABSTRACT Method and apparatus for cleaning of calibrated nozzles for obtaining measurements corresponding to the substance cross-section of a sliver of textile material, wherein the sliver is guided through a constricted nozzle with pneumatic pressure being evaluated as the measured quantity.
  • the method of cleaning includes introducing a pressure surge into a measuring line leading to the nozzle with a pressure-evaluation unit so as to blow out deposits blocking the nozzle.
  • the apparatus includes a second line leading into the measuring line and admitting a pressure surge into the measuimg line.
  • the above patents also describe an apparatus for carrying out this method, comprising a nozzle through which the textile material travels and which tapers in cross-section in the direction of travel of the textile material, wherein the nozzle comprises a chamber between two planes lying one behind the other in the direction of travel, extending vertically of its axis, and a manometer connected to the chamber.
  • An object of the present invention is to obviate the above-mentioned problems and disadvantages by providing that the present invention, which is an improvement in the above-described method, introduces a pressure surge into a measuring line leading to the nozzle with a pressure-evaluation unit, by which deposits blocking the calibrated nozzle are blown out.
  • the present invention also provides an improvement in the apparatus of the above-cited patents comprising a measuring line leading to the nozzle and a second line leading into the measuring line through which a pressure surge can be admitted into the measuring line.
  • FIG. 1 is a sectional view illustrating a calibrated nozzle and connecting socket for a measuring line.
  • FIG. 2 is the same view of the measuring nozzle with extraneous matter deposited in the connecting socket.
  • FIG. 3 is a view of the calibrated nozzle with measuring line and a pressure-medium line.
  • FIG. 4 is a modification of the arrangement shown in FIG. 3.
  • FIG. 5 is a partial view of a further modification of the arrangement shown in FIG. 3.
  • FIG. 1 there is shown a calibrated nozzle 1 with sliver 2 passing through it.
  • a lateral extension 3 has a connecting socket 4 to which a manometer or pressure gauge can be coupled through a hose such as shown, for example, in FIG. 3.
  • a bore 6 establishes a connection between a channel forming the calibrated nozzle 1 and a chamber 5 for accommodating the connecting socket 4.
  • FIG. 2 shows how after a certain period of operation the bore 6 and the chamber 5 become, to some extent, filled with dirt and fiber particles 7 so that the pressure conditions prevailing in the bore 6 cannot be propagated freely and, in some cases, only with delay into the measuring line coupled to the socket 4.
  • FIG. 3 shows the measuring nozzle with the measuring line 8 connected to it and a diagrammatically illustrated pressure-evaluation unit 9.
  • the bore 6 and chamber 5 as shown in FIGS. 1 and 2 are replaced by a bore 6' of constant diameter with the result that any deposits of dirt obstructing this bore 6 are ejected as a whole into the sliver.
  • compressed air is admitted through the line 10 and the measuring line 8.
  • the compressed air escaping towards the calibrated nozzle 1 forces the deposits of dirt 7 in the chamber 5 and the bore 6' into the sliver 2 by which they are carried away.
  • the quantity of impurities blown out is so small that they do not affect the sliver 2 in any way.
  • the measuring line 8 is now free again and measuring can proceed without interruption. In the event of continuous sliver passage the surge of compressed air must, of course, be very brief because no measurements can be made during this period.
  • valve 13 is controlled in such a way that it closes when the valve 11 opens and after the valve 11 has closed remains closed for a predetermined period until the excess pressure prevailing in the measuring line 8 has collapsed through the bore 6 into the calibrated nozzle 1.
  • a pressure surge can be produced locally by an arrangement shown in FIG. 4.
  • a cylinder 14 with a piston 15 is connected to a plunger magnet 17 which is surrounded by a coil 16.
  • the plunger magnet 17 is raised by exciting the coil 16 so that the plunger 15 displaces the air present in the cylinder 14 through the line 10 into the measuring line 8.
  • the other valve 13 can be actuated by a control means in'such a manner that the pressure generated by the piston 15 is not active towards the pressure-evaluation unit 9.
  • Local production of a compressed air surge as illustrated in FIG. 4 can be applied both to each individual calibrated nozzle and also in the form of a common auxiliary unit for example to an installation comprising several calibrated nozzles.
  • Apparatus as described in the above-cited patents are preferably used in machines of the kind found in the spinning industry, especially drawing frames.
  • the processed fiber material is deposited into cans which have to be changed after they have been filled to a certain extent.
  • the output of the spinning station in question is also interrupted. It is of particular advantage to blow out the calibrated nozzles during these brief stoppage periods because in this way measuring and monitoring of the continuously produced sliver do not have to be additionally interrupted.
  • the ejection of deposits in the bore 6 can also be carried out while the sliver 2 is passing through the calibrated nozzle.
  • the measurement has to be briefly interrupted, wherein the measurement obtained immediately before the interruption being stored and the measurement continued after pressure has been equalized in the measuring line 8.
  • Method for cleaning of calibrated nozzles for obtaining measurements corresponding to the substance cross-section of a sliver of textile material comprising admitting a pressure surge into a measuring line connecting the nozzle to a pressure-evaluation unit through first valve means,
  • Method according to claim 1 further including the step of keeping the second valve closed, on completion of the pressure surge, until excess pressure produced by the pressure surge in the measuring line has diminished.
  • apparatus for cleaning said calibrated nozzle comprising a source of surge pressure, line means for selectively admitting said surge pressure from said source to said measuring line, first valve means arranged in said measuring line means between the pressure evaluation unit and the admitting line means and second valve means arranged in said admitting line means for selective connection of said source to the measuring line means, said first and second valve means being operationally associated with each other for synchronous operation.
  • apparatus for cleaning said calibrated nozzle comprising a source of surge pressure and line means for selectively admitting said surge pressure from said source to said measuring line, wherein diaphragm means is provided in the measuring line means between the admitting line means and the pressureevaluation unit.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Measuring Arrangements Characterized By The Use Of Fluids (AREA)

Abstract

Method and apparatus for cleaning of calibrated nozzles for obtaining measurements corresponding to the substance crosssection of a sliver of textile material, wherein the sliver is guided through a constricted nozzle with pneumatic pressure being evaluated as the measured quantity. The method of cleaning includes introducing a pressure surge into a measuring line leading to the nozzle with a pressure-evaluation unit so as to blow out deposits blocking the nozzle. The apparatus includes a second line leading into the measuring line and admitting a pressure surge into the measuirng line.

Description

United States Patent Murbach Aug. 14, 1973 [54] METHQD AND APPARATUS FOR 3,283,564 11/1966 Biddison, Jr. 73/37.7 CLEANING CALIBRATED NOZZLES 3,327,530 6/1967 Lepird 73/182 3,482,433 12/1969 Gladwyn 73/37.5
Erwin Murbach, Werrikon-Uster, Switzerland Assignee: Zellweger Ltd., Uster, Switzerland Filed: Oct. 25, 1970 Appl. No.: 84,632
Inventor:
Foreign Application Priority Data Nov. 25, 1969 Switzerland 17508/69 U.S. Cl 134/37, 15/316, 73/37.7, 73/160 Int. Cl. B08b 5/02, 0011) 13/04 Field of Search 73/37, 160, 37.5-37.9, 73/182; l5/3l6; 134/37 Yurdin 134/37 X Primary Examiner-Richard C. Queisser Assistant Examiner-Frederick Shoon Attorney-Craig, Antonelli and Hill [57] ABSTRACT Method and apparatus for cleaning of calibrated nozzles for obtaining measurements corresponding to the substance cross-section of a sliver of textile material, wherein the sliver is guided through a constricted nozzle with pneumatic pressure being evaluated as the measured quantity. The method of cleaning includes introducing a pressure surge into a measuring line leading to the nozzle with a pressure-evaluation unit so as to blow out deposits blocking the nozzle. The apparatus includes a second line leading into the measuring line and admitting a pressure surge into the measuimg line.
7 Claims, 5 Drawing Figures VALVE l3 PRESSURE- EVALUATION UNIT VA LVE Patented Aug. 14, 1973 2 Sheets-Sheet 1 \NvENToR ERw IN MLLRBHCH RTroRN EYS Patented Aug. 14, 1973 2 Sheets-Sheet z VALVE l3 PRESSURE- EVALUATION UNIT PRESSURE- EVALUATION UNIT VALVE 13 PRESSURE- EVALUATION UNIT METHOD AND APPARATUS FOR CLEANING CALIBRATED NOZZLES BACKGROUND OF THE INVENTION The present invention relates to the cleaning of calibrated nozzles and is an improvement in or modification of the invention described in British Pat. No. 1,137,297 or Canadian Pat. 989,281 or U.S. Pat. No. 3,435,673.
The aforementioned patents describe a method of obtaining measurements corresponding to the substance cross-section of textile material, slivers in particular, wherein the textile material is guided through a nozzle having a constriction with pneumatic pressure generated at the constriction being evaluated'as the measured quantity.
The above patents also describe an apparatus for carrying out this method, comprising a nozzle through which the textile material travels and which tapers in cross-section in the direction of travel of the textile material, wherein the nozzle comprises a chamber between two planes lying one behind the other in the direction of travel, extending vertically of its axis, and a manometer connected to the chamber.
Unfortunately, it has been found that, dirt and fiber particles from the textile material can be deposited in the opening of the above-described nozzle which communicates with a manometer with the result that this opening becomes blocked over a period of time. This in turn results in increasing falsification of the measured quantity. Accordingly, the nozzle has to be removed for cleaning at certain intervals, thereby substantially interrupting the production cycle.
SUMMARY OF THE INVENTION An object of the present invention is to obviate the above-mentioned problems and disadvantages by providing that the present invention, which is an improvement in the above-described method, introduces a pressure surge into a measuring line leading to the nozzle with a pressure-evaluation unit, by which deposits blocking the calibrated nozzle are blown out.
The present invention also provides an improvement in the apparatus of the above-cited patents comprising a measuring line leading to the nozzle and a second line leading into the measuring line through which a pressure surge can be admitted into the measuring line.
BRIEF DESCRIPTION OF THE DRAWING These and further objects and features of the present invention will become more apparent from the following description when taken in conjunction with the accompanying drawing which shows, for purposes of illustration only, several embodiments in accordance with the present invention and wherein FIG. 1 is a sectional view illustrating a calibrated nozzle and connecting socket for a measuring line.
FIG. 2 is the same view of the measuring nozzle with extraneous matter deposited in the connecting socket.
FIG. 3 is a view of the calibrated nozzle with measuring line and a pressure-medium line.
FIG. 4 is a modification of the arrangement shown in FIG. 3.
FIG. 5 is a partial view of a further modification of the arrangement shown in FIG. 3.
DETAILED DESCRIPTION OF THE DRAWING Referring now to the drawing and, in particular, to FIG. 1, there is shown a calibrated nozzle 1 with sliver 2 passing through it. A lateral extension 3 has a connecting socket 4 to which a manometer or pressure gauge can be coupled through a hose such as shown, for example, in FIG. 3. A bore 6 establishes a connection between a channel forming the calibrated nozzle 1 and a chamber 5 for accommodating the connecting socket 4. FIG. 2 shows how after a certain period of operation the bore 6 and the chamber 5 become, to some extent, filled with dirt and fiber particles 7 so that the pressure conditions prevailing in the bore 6 cannot be propagated freely and, in some cases, only with delay into the measuring line coupled to the socket 4.
FIG. 3 shows the measuring nozzle with the measuring line 8 connected to it and a diagrammatically illustrated pressure-evaluation unit 9. According to the invention, a line 10 communicating through a valve 11 with a pressure medium 12 carrying compressed air, for example, is introduced into the measuring line 8. The bore 6 and chamber 5 as shown in FIGS. 1 and 2 are replaced by a bore 6' of constant diameter with the result that any deposits of dirt obstructing this bore 6 are ejected as a whole into the sliver. By opening the valve 11, compressed air is admitted through the line 10 and the measuring line 8. The compressed air escaping towards the calibrated nozzle 1 forces the deposits of dirt 7 in the chamber 5 and the bore 6' into the sliver 2 by which they are carried away. The quantity of impurities blown out is so small that they do not affect the sliver 2 in any way. The measuring line 8 is now free again and measuring can proceed without interruption. In the event of continuous sliver passage the surge of compressed air must, of course, be very brief because no measurements can be made during this period.
Since the compressed air surge admitted through line 10 into the measuring line 8 naturally spreads out to both sides, the pressure-evaluation unit 9 has to be protected in some cases by another valve 13. This valve 13 is controlled in such a way that it closes when the valve 11 opens and after the valve 11 has closed remains closed for a predetermined period until the excess pressure prevailing in the measuring line 8 has collapsed through the bore 6 into the calibrated nozzle 1.
However, other solutions are also conceivable in which, instead of another valve, the line leading to the pressure-evaluation unit simply contains a diaphragm as seen in FIG. 5. Following this diaphragm, a selfcontrolling excess-pressure valve is installed in the line. In this way, the pressure surge spreading out towards the pressure evaluation unit can be damped and rendered harmless by blowing out from the excess pressure valve.
If no pressure medium line 12 is available, a pressure surge can be produced locally by an arrangement shown in FIG. 4. To this end, a cylinder 14 with a piston 15 is connected to a plunger magnet 17 which is surrounded by a coil 16. The plunger magnet 17 is raised by exciting the coil 16 so that the plunger 15 displaces the air present in the cylinder 14 through the line 10 into the measuring line 8. In this case too, the other valve 13 can be actuated by a control means in'such a manner that the pressure generated by the piston 15 is not active towards the pressure-evaluation unit 9.
Local production of a compressed air surge as illustrated in FIG. 4 can be applied both to each individual calibrated nozzle and also in the form of a common auxiliary unit for example to an installation comprising several calibrated nozzles.
Apparatus as described in the above-cited patents are preferably used in machines of the kind found in the spinning industry, especially drawing frames. In these machines, the processed fiber material is deposited into cans which have to be changed after they have been filled to a certain extent. To this end, the output of the spinning station in question is also interrupted. It is of particular advantage to blow out the calibrated nozzles during these brief stoppage periods because in this way measuring and monitoring of the continuously produced sliver do not have to be additionally interrupted.
The ejection of deposits in the bore 6 can also be carried out while the sliver 2 is passing through the calibrated nozzle. To this end, the measurement has to be briefly interrupted, wherein the measurement obtained immediately before the interruption being stored and the measurement continued after pressure has been equalized in the measuring line 8.
While I have shown and described several embodiments in accordance with the present invention, it is to be clearly understood that the same is susceptible of numerous changes and modifications as will be apparent to one skilled in the art. I, therefore, do not wish to be limited to the details shown and described herein, but intend to cover all such changes and modifications as are encompassed by the scope of the present invention.
I claim:
1. Method for cleaning of calibrated nozzles for obtaining measurements corresponding to the substance cross-section of a sliver of textile material, comprising admitting a pressure surge into a measuring line connecting the nozzle to a pressure-evaluation unit through first valve means,
blowing out the deposits blocking a bore of the nozzle by means of the pressure surge, and
blocking the measuring line by second valve means in the direction of the pressure-evaluation unit at least for the duration of the pressure surge.
2. Method according to claim 1 further including the step of keeping the second valve closed, on completion of the pressure surge, until excess pressure produced by the pressure surge in the measuring line has diminished.
3. Method according to claim 1, wherein the pressure surge is admitted at times when the actual measurement is interrupted for an operational purpose.
4. In combination with at least one calibrated nozzle connected to a pressure-evaluation unit by way of a measuring line for obtaining measurements corresponding to the substance cross-section of a sliver of textile material passing therethrough, apparatus for cleaning said calibrated nozzle comprising a source of surge pressure, line means for selectively admitting said surge pressure from said source to said measuring line, first valve means arranged in said measuring line means between the pressure evaluation unit and the admitting line means and second valve means arranged in said admitting line means for selective connection of said source to the measuring line means, said first and second valve means being operationally associated with each other for synchronous operation.
5. Apparatus according to claim 4, wherein the second valve means closes when the first valve means is opened and remains closed, after the first valve means is closed, for a predetermined period until the excess pressure in the measuring line means has collapsed.
6. Apparatus according to claim 4, wherein the second valve means closes when the first valve means is opened and remains closed, after the first valve means is closed, for a predetermined period until the excess pressure in the measuring line means has collapsed.
7. In combination with at least one calibrated nozzle connected to a pressure-evaluation unit by way of a measuring line for obtaining measurements corresponding to the substance cross-section of a sliver of textile material passing therethrough, apparatus for cleaning said calibrated nozzle comprising a source of surge pressure and line means for selectively admitting said surge pressure from said source to said measuring line, wherein diaphragm means is provided in the measuring line means between the admitting line means and the pressureevaluation unit.

Claims (6)

  1. 2. Method according to claim 1 further including the step of keeping the second valve closed, on completion of the pressure surge, until excess pressure produced by the pressure surge in the measuring line has diminished.
  2. 3. Method according to claim 1, wherein the pressure surge is admitted at times when the actual measurement is interrupted for an operational purpose.
  3. 4. In combination with at least one calibrated nozzle connected to a pressure-evaluation unit by way of a measuring line for obtaining measurements corresponding to the substance cross-section of a sliver of textile material passing therethrough, apparatus for cleaning said calibrated nozzle comprising a source of surge pressure, line means for selectively admitting said surge pressure from said source to said measuring line, first valve means arranged in said measuring line means between the pressure evaluation unit and the admitting line means and second valve means arranged in said admitting line means for selective connection of said source to the measuring line means, said first and second valve means being operationally associated with each other for synchronous operation.
  4. 5. Apparatus according to claim 4, wherein the second valve means closes when the first valve means is opened and remains closed, after the first valve means is closed, for a predetermined period until the excess pressure in the measuring line means has collapsed.
  5. 6. Apparatus according to claim 4, wherein the second valve means closes when the first valve means is opened and remains closed, after the first valve means is closed, for a predetermined period until the excess pressure in the measuring line means has collapsed.
  6. 7. In combination with at least one calibrated nozzle connected to a pressure-evaluation unit by way of a measuring line for obtaining measurements corresponding to the substance cross-section of a sliver of textile material passing therethrough, apparatus for cleaning said calibrated nozzle comprising a source of surge pressure and line means for selectively admitting said surge pressure from said source to said measuring line, wherein diaPhragm means is provided in the measuring line means between the admitting line means and the pressure-evaluation unit.
US00084632A 1969-11-25 1970-10-25 Method and apparatus for cleaning calibrated nozzles Expired - Lifetime US3752170A (en)

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CH1750869A CH518542A (en) 1966-05-06 1969-11-25 Measuring the thickness of rovings

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JP (1) JPS512978B1 (en)
AT (1) AT320301B (en)
BE (1) BE757191R (en)
CA (1) CA941110A (en)
CS (1) CS166258B4 (en)
FR (1) FR2082923A6 (en)
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HK (1) HK55478A (en)
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854330A (en) * 1972-05-10 1974-12-17 Rieter Ag Maschf Apparatus for measuring mass density variations in a staple fiber sliver on spinning preparatory machines
US4100791A (en) * 1977-05-02 1978-07-18 Fiber Controls Corporation Auto-leveler
US4184361A (en) * 1976-12-18 1980-01-22 Trutzschler Gmbh & Co. Kg Sliver density sensing apparatus
US4306450A (en) * 1979-10-15 1981-12-22 Rieter Machine Works, Ltd. Apparatus for measuring a cross-sectional area of a travelling fiber sliver
US4318299A (en) * 1979-04-06 1982-03-09 Zellweger Uster Ltd. Measuring funnel for determining the tension of slivers
WO1985001108A1 (en) * 1983-08-29 1985-03-14 Coulter Corporation Method and apparatus for removing foreign matter from a flow cell of a particle study device
US4549428A (en) * 1982-02-19 1985-10-29 Zellweger Uster Ltd. Device for the determination of the amount of substance or the density of fiber structures
US4698476A (en) * 1982-05-06 1987-10-06 Mitsubishi Denki Kabushiki Kaisha Automatic wire feeder for an electrical discharge machining apparatus including combined cleaning fluid and working fluid supply systems
US4758968A (en) * 1985-05-16 1988-07-19 North Carolina State University Method and apparatus for continuously measuring the variability of textile strands
JPS63502290A (en) * 1986-01-16 1988-09-01 ツエルヴェーゲル　ウステル　アクチエンゲゼルシヤフト Device for measuring sliver thickness
US5040262A (en) * 1989-04-01 1991-08-20 Bergemann Soot-removal blower
EP1191335A3 (en) * 2000-09-22 2003-09-17 Tomsic s.r.l. Device for measuring the count of a ribbon of fibers

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
JPS5421579U (en) * 1977-07-15 1979-02-13
US4449398A (en) * 1982-06-24 1984-05-22 Accuray Corporation Sheet property sensor with sheet wrinkle remover
US4895603A (en) * 1988-12-19 1990-01-23 Philip Morris Incorporated Apparatus and method for in-place cleaning and priming of a nozzle assembly

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US3156584A (en) * 1963-07-09 1964-11-10 Yurdin Alfred Method and apparatus for cleaning pipe lines
US3283564A (en) * 1964-12-28 1966-11-08 Du Pont Pneumatic deniering apparatus
US3327530A (en) * 1965-01-04 1967-06-27 Franklin P Lepird Marine speedometer
US3482433A (en) * 1965-09-24 1969-12-09 Burchell J Gladwyn Fluid-operated sensing system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156584A (en) * 1963-07-09 1964-11-10 Yurdin Alfred Method and apparatus for cleaning pipe lines
US3283564A (en) * 1964-12-28 1966-11-08 Du Pont Pneumatic deniering apparatus
US3327530A (en) * 1965-01-04 1967-06-27 Franklin P Lepird Marine speedometer
US3482433A (en) * 1965-09-24 1969-12-09 Burchell J Gladwyn Fluid-operated sensing system

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854330A (en) * 1972-05-10 1974-12-17 Rieter Ag Maschf Apparatus for measuring mass density variations in a staple fiber sliver on spinning preparatory machines
US4184361A (en) * 1976-12-18 1980-01-22 Trutzschler Gmbh & Co. Kg Sliver density sensing apparatus
US4100791A (en) * 1977-05-02 1978-07-18 Fiber Controls Corporation Auto-leveler
US4318299A (en) * 1979-04-06 1982-03-09 Zellweger Uster Ltd. Measuring funnel for determining the tension of slivers
US4306450A (en) * 1979-10-15 1981-12-22 Rieter Machine Works, Ltd. Apparatus for measuring a cross-sectional area of a travelling fiber sliver
US4549428A (en) * 1982-02-19 1985-10-29 Zellweger Uster Ltd. Device for the determination of the amount of substance or the density of fiber structures
US4698476A (en) * 1982-05-06 1987-10-06 Mitsubishi Denki Kabushiki Kaisha Automatic wire feeder for an electrical discharge machining apparatus including combined cleaning fluid and working fluid supply systems
WO1985001108A1 (en) * 1983-08-29 1985-03-14 Coulter Corporation Method and apparatus for removing foreign matter from a flow cell of a particle study device
US4564803A (en) * 1983-08-29 1986-01-14 Coulter Corporation Method and apparatus for removing foreign matter from a flow cell of a particle study device
US4758968A (en) * 1985-05-16 1988-07-19 North Carolina State University Method and apparatus for continuously measuring the variability of textile strands
JPS63502290A (en) * 1986-01-16 1988-09-01 ツエルヴェーゲル　ウステル　アクチエンゲゼルシヤフト Device for measuring sliver thickness
US4864853A (en) * 1986-01-16 1989-09-12 Zellweger Uster Ltd. Apparatus for measuring the thickness of fibre slivers
JP2593326B2 (en) 1986-01-16 1997-03-26 ツエルヴェーゲル ウステル アクチエンゲゼルシヤフト Sliver thickness measuring device
US5040262A (en) * 1989-04-01 1991-08-20 Bergemann Soot-removal blower
EP1191335A3 (en) * 2000-09-22 2003-09-17 Tomsic s.r.l. Device for measuring the count of a ribbon of fibers

Also Published As

Publication number Publication date
CS166258B4 (en) 1976-02-27
RO58950A (en) 1976-01-15
DE2031339A1 (en) 1971-05-27
NL143291B (en) 1974-09-16
BE757191R (en) 1971-03-16
FR2082923A6 (en) 1971-12-10
CA941110A (en) 1974-02-05
JPS512978B1 (en) 1976-01-30
DE2031339B2 (en) 1977-06-02
GB1314276A (en) 1973-04-18
NL7011341A (en) 1971-05-27
AT320301B (en) 1975-02-10
HK55478A (en) 1978-09-29

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