US3159174A - Filling and emptying system for washing machine - Google Patents

Filling and emptying system for washing machine Download PDF

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Publication number
US3159174A
US3159174A US10441561A US3159174A US 3159174 A US3159174 A US 3159174A US 10441561 A US10441561 A US 10441561A US 3159174 A US3159174 A US 3159174A
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US
United States
Prior art keywords
tub
pipe
pump
inlet
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
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English (en)
Inventor
Searle Walter William Ralph
Mann Edward Frank
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoover Co
Original Assignee
Hoover Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoover Co filed Critical Hoover Co
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Publication of US3159174A publication Critical patent/US3159174A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/0007—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm for discrete indicating and measuring
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/04—Control of operations performed in washing machines or washer-dryers  non-electrically
    • D06F33/08—Control of operations performed in washing machines or washer-dryers  non-electrically substantially hydraulically
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/02—Branch units, e.g. made in one piece, welded, riveted
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
    • Y10T137/3185—Air vent in liquid flow line
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/7032—Furniture and housing furnishings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/729—Washing machine cycle control

Definitions

  • the present invention relates to a filling and emptying system for a washing machine which utilizes a centnfugal pump for emptying purposes and adapted for domestic use. p 7
  • FIG. 1 is a front view of a washer-extractor unit according to the present invention, mounted in a cabinet and supporting framework with the cabinet broken away to show the arrangement of certain parts of the unit;
  • FIG. 4 is a schematic diagram showing the principles 'of the present invention.
  • FIG. 5 is a segmental sectional view taken in line 5+5 of FIG. 4, looking in the direction of the arrows, showing how the water enters the mixing tube according to the present invention.
  • the device of the present invention comprises a non-rotary tub which may be resiliently mounted for free vibration within any suitable framework and enclosed in a cabinet as will later appear.
  • a non-rotary tub which may be resiliently mounted for free vibration within any suitable framework and enclosed in a cabinet as will later appear.
  • tub 10, basket 11 and impeller 12 are mounted at an angle of about 35 so that a small quantity 7 of water may be used for ellicient operation.
  • the tub it is provided with an access opening 13 aligned with an access opening 14 in the basket 11 through which clothes may be inserted into the basket 11.
  • the access opening 13 of the tub is connected to the access opening of the cabinet by means of an annular bellows 15 to prevent leakage between the tub l0 and the cabinet.
  • Water is supplied to the tub 10 by hot and cold water pipes 17 and 18 respectively, controlled by electromagnetically actuated valves 19 and 20 and is delivered to a combined mixing pipe, stand pipe and vent pipe 21 of comparatively large diameter, as shown in FIGS. 4 and 5.
  • a combined drain and charging pipe 26 of comparatively large diameter communicates with the tub It) at one end through a flexible bellows pipe 27 and at its other end with stand pipe 21.
  • the pipe 26 slopes upwardly to the right as shown in FIG. 2 and a centrifugal discharge pump 28 has its inlet connected to the pipe 26 adjacent to the' entrance of the stand pipe 21 to the pipe 26.
  • a discharge pipe 25? connects to the discharge of pump 28 and may empty to any suitable point of discharge such as a sink.
  • the connection of the pipe 26 to the stand pipe 21 adjacent to the inlet to the pump 28 and the upward slope of pipe 26 toward the pump inlet serves a number of important functions.
  • the inlet 27 to the pipe 26 forms the lowest point of the tub 10 so that when the pump 23 is operated all of the water in the tub 10 will be evacuated and any vapor or foam in the tub will be vented through stand pipe 21 before it reaches the pump 28 to interfere with its operation. As long as water remains in the inlet 27 of the tub It the pump 28 is primed so as to be operative immediately.
  • a vent pipe 31 is provided between the upper part of tub 10 and the top of stand pipe 21.
  • a pipe 32 leads from the lower end of inlet pipe 26 to a level measuring vessel 33 which is positioned below the normal liquid level 16 in the tub 10.
  • the vessel 33 is divided into a compartment 34 of comparatively large area and a compartment 35 of relatively smaller area by a partition extending downward from its top.
  • a vent pipe 37 leads upwardly from compartment 35 and communicates with atmosphere so that water will raise in pipe 37 to the level of the water in the tub 10 as shown.
  • a pair of small diameter tubes 38 and 39 extend upwardly from the chamber 34 to two well known diaphragm actuated switches 40 and 41, in which the diaphragrns of the switches 40 and 41 snap upwardly in response to a change of pressure in the chamber 34 as the water level therein rises and falls;
  • the area of the surface of the water in chamber 34 is so large compared to the area of the diaphragms of switches at) and 41 that the change of the level of the water in chamber 34 is negligible as the diaphragms of switches 40 and 41 are actuated.
  • FIGS. 1', 2 and 3 the washer-extractor of FIG. 4is mounted in a supporting framework and cabinet as there shown.
  • the entire unit including the motor for driving the basket is resiliently mounted on a framework encased within a cabinet generally indicated by the reference numeral 42.
  • the cabinet 42 is provided with a sloping front panel 43 which coincides with the front access opening 13 of tub 1d and is normally closed by a door panel 44 over an access opening 45 and to which bellows 15 is attached.
  • the drain pipe 30 is shown in FIGS. 1 and 2 in the form of a flexible hose which extends downwardly along the front interior of cabinet 42 to connect with the pipe 26 which extends across'the front of the cabinet and rearwardly along the right hand side to the pump 23.
  • the flexible bellows 27 is shown in the form of a flexible hose extending forwardly slightly from the outlet 46 of tub 10 and connected to the side of pipe 26.
  • the pipe 32 extends along the front interior of the cabinet 42 to the liquid level measuring vessel 33 at the right hand side of the cabinet as shown by FIGS. 1 and 2.
  • the tubes 37, 38 and 39 extend upwardly along the right hand side of the cabinet 42 as shown by FIG. 2. As shown by FIG. 3 the tubes 38 and 39 extend across the back of the cabinet to pressure switches 40 and 41.
  • the discharge pipe 29 of the pump 28 extends upwardly along the right hand side and back of the unit to a fitting 47 to which a hose 48 is connected for the purpose of leading the discharge water to a sink or other suitable point of disposal.
  • FIG. 2 the inlet pipe 22 is shown extending from one side of the vent pipe 21 while the inlet pipe 23 extends from the opposite side of vent pipe 21 and is not visible.
  • the pipes 22 and 23 then extend along the back of the machine to fittings 49 and 50 which are connected to hose sections 51 and 52 which may be connected to sources of hot and cold water respectively.
  • the solenoid valves 19 and are shown in FIG. 3 partially hidden behind the upper ends of hose sections 51 and 52, being connected between the pipes 22 andZEi and the fittings 49 and 50 respectively.
  • the cabinet 42 has an extension 53 in which the hose sections 48, 51 and 52 maybe stored when not in use.
  • the door 44 is opened and clothes inserted into the a mixing tube 21 or in the tub 10.
  • the hot and cold water will enter the top of stand pipe 21 in a tangential direction as shown by FIG. 5 and become completely mixed as it flows downwardly through stand pipe 21 past the shroud 25 over the vent opening 24.
  • the mixed water will flow through pipes 26 and 27 into the bottom of tub 10 until it reaches the level 16 at which time the pressure in chamber 34 of vessel 33 will be sufiicient to actuate the switch 40 to close the valves 19 and 20.
  • the washing operation may then be carried out in the usual manner.
  • the end of hose 48 is placed in a sink and the pump 28 energized either manually or by any suitable program control.
  • the pump 28 is of the centrifugal type and will always remain primed as long as water remains in the tub it) since the pump inlet is positioned below the bottom of tub it.
  • the tub llli becomes empty, some suds and vapor may flow through pipe 26 toward the pump 28 but will be vented when it reaches the lower end of stand pipe 21. Any suds or foam remaining in pipe 26 will be washed back into the tub 10 when the tub is refilled since'the filling liquid passes in the opposite direction through the same pipe 26.
  • the present invention provides a simple filling and emptying system for a domestic washing machine where space is at a premium, in which a centrifugal pump is positioned laterally of the tub in order to save space and in which the pump is always maintained in a primed condition for a succeeding operation.
  • a washing machine comprising a tub, a centrifugal pump for emptying said tub, said pump being mounted independently of and positioned laterally of said tub, said pump having its inlet at alevel near the level of the outlet of said tub, a flexible laterally extending combined inlet and outlet pipe extending between the outlet of said tub to the inlet of said pump, a combined inlet and vent stand pipe of comparatively large diameter extending upwardly from said laterally extending pipe and connected thereto at a point adjacent to the inlet of said pump, liquid supply means for introducing liquid into said stand pipe so as to enter said tub from the bottom thereof through said laterally extending pipe, automatic means for maintaining a proper liquid level in said tub, a vent opening in said stand pipe above said liquid level, and a shroud over said vent opening to prevent leakage of water through said opening as the water flows downwardly through said stand pipe.
  • a washing machine a supporting structure, a tub mounted on said supporting structure, said tub having a low portion, an outlet in said low portion of said tub, a centrifugal pump mounted on said supporting structure independently of said tub, said pump being mounted in a position displaced a substantial distance horizontally from said low portion of said tub, said pump having an inlet and an outlet, a flexible pipe connected between the outlet of said tub and the inlet of said pump, said flexible pipe sloping downwardly from said pump to said outlet of said tub, and a stand pipe connected to said flexible pipe at a point adjacent said inlet to said pump, said stand pipe extending upwardly to a liquid supply means.
  • a washing machine wherein said tub is mounted with its longitudinal axis inclined and said supporting structure comprises a cabinet enclosing said tub, an access opening in said cabinet to the top of said tub, a U-shaped flexible sealing member having its ends connected between the periphery of the top of said tub and the periphery of said access opening in said cabinet with the inner concave portion of said U-shaped member facing the longitudinal axis of said tub, and a tube extending from the lowest portion of said U-shaped member to said flexible pipe.
  • a washing machine comprising a supporting struc ture, a tub mounted on said supporting structure, a closed vessel positioned to the side of said tub below the normal liquid level in said tub, a tube extending from said tub below the normal liquid level thereof to the bottom of said vessel, a plate in said vessel, said plate extending completely across said vessel and having its top edge secured to the top interior of said vessel, the bottom edge of said plate being spaced a small distance above the bottom of said vessel, said plate dividing said vessel into two chambers, a first pipe entering one of said chambers through the upper portion of said vessel, said first pipe extending upwardly from said vessel above the normal liquid level in said tub and having its upper end open to the atmos- 6 phere, at least one pressure pipe having one end entering the other of said chambers through the upper portion of said vessel, the other end of said pressure pipe being connected to a pressure switch, said pipes being connected to said vessel a substantial distance above the bottom edge of said plate, whereby when said tub is filled with the liquid the liquid will enter said vessel through said tube

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Control Of Washing Machine And Dryer (AREA)
US10441561 1960-05-05 1961-04-20 Filling and emptying system for washing machine Expired - Lifetime US3159174A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1598560A GB980482A (en) 1960-05-05 1960-05-05 Improvements relating to washing and/or drying machines
GB15261 1961-01-02

Publications (1)

Publication Number Publication Date
US3159174A true US3159174A (en) 1964-12-01

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ID=26235724

Family Applications (1)

Application Number Title Priority Date Filing Date
US10441561 Expired - Lifetime US3159174A (en) 1960-05-05 1961-04-20 Filling and emptying system for washing machine

Country Status (8)

Country Link
US (1) US3159174A (fr)
AT (1) AT240821B (fr)
CH (1) CH370736A (fr)
DE (2) DE1238427B (fr)
ES (4) ES267007A1 (fr)
FR (4) FR1288548A (fr)
GB (2) GB980483A (fr)
NL (1) NL264195A (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362197A (en) * 1966-05-11 1968-01-09 American Motors Corp Clothes washer water fill control
US3385085A (en) * 1964-02-25 1968-05-28 Hupp Corp Laundry equipment
US3578016A (en) * 1968-12-26 1971-05-11 Gen Electric Antisiphon fluid inlet means
US3763887A (en) * 1972-09-27 1973-10-09 Deere & Co Fixed level, anti-syphon hydraulic sump tank
DE2658435A1 (de) * 1976-12-23 1978-07-06 Licentia Gmbh Verfahren zum bereitstellen einer fluessigkeitsmenge mit waehlbarer temperatur und anordnung zur durchfuehrung des verfahrens
US4741357A (en) * 1986-06-04 1988-05-03 Industrie Zanussi Spa Washing machine with a control system for controlling the supply of water
US5921112A (en) * 1996-08-05 1999-07-13 Balay S.A. Transmitter housing for a water level transmitter in a washing machine
US6393872B2 (en) * 1999-06-22 2002-05-28 Whirlpool Corporation Control for an automatic washer with spray pretreatment
US6634194B1 (en) * 1999-12-30 2003-10-21 General Electric Company Washing machine overflow system
US20040148978A1 (en) * 2002-09-26 2004-08-05 Kim Kwang Soo Drum-type washing machine
US20070044521A1 (en) * 2005-09-01 2007-03-01 Samsung Electronics Co., Ltd. Drum washing machine
US20080264114A1 (en) * 2007-04-25 2008-10-30 Lg Electronics Inc. Drum type washing machine
US20090126418A1 (en) * 2007-09-13 2009-05-21 Lg Electronics Inc. Drum type washing machine
EP2388368A1 (fr) * 2010-05-17 2011-11-23 BSH Bosch und Siemens Hausgeräte GmbH Appareil de blanchisserie comportant un générateur de vapeur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3717477A1 (de) * 1987-05-23 1988-12-01 Licentia Gmbh Trommelwaschmaschine
KR101649669B1 (ko) * 2013-12-23 2016-08-30 동부대우전자 주식회사 세탁기, 세탁기의 버블생성장치 및 세탁방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1564760A (en) * 1924-08-27 1925-12-08 Leon E Culver Clothes-washing machine
US2103797A (en) * 1928-03-19 1937-12-28 Conover Company Conduit for washing machines
US2235386A (en) * 1940-02-15 1941-03-18 Westinghouse Electric & Mfg Co Dishwasher construction
US3035597A (en) * 1959-09-16 1962-05-22 Herbert J Jones Control protection in automatic washing machines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB416173A (en) * 1933-08-05 1934-09-13 Mather & Platt Ltd Improvements in centrifugal pumps
FR1170651A (fr) * 1957-04-05 1959-01-16 Perfectionnement apporté aux machines à laver

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1564760A (en) * 1924-08-27 1925-12-08 Leon E Culver Clothes-washing machine
US2103797A (en) * 1928-03-19 1937-12-28 Conover Company Conduit for washing machines
US2235386A (en) * 1940-02-15 1941-03-18 Westinghouse Electric & Mfg Co Dishwasher construction
US3035597A (en) * 1959-09-16 1962-05-22 Herbert J Jones Control protection in automatic washing machines

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385085A (en) * 1964-02-25 1968-05-28 Hupp Corp Laundry equipment
US3362197A (en) * 1966-05-11 1968-01-09 American Motors Corp Clothes washer water fill control
US3578016A (en) * 1968-12-26 1971-05-11 Gen Electric Antisiphon fluid inlet means
US3763887A (en) * 1972-09-27 1973-10-09 Deere & Co Fixed level, anti-syphon hydraulic sump tank
DE2658435A1 (de) * 1976-12-23 1978-07-06 Licentia Gmbh Verfahren zum bereitstellen einer fluessigkeitsmenge mit waehlbarer temperatur und anordnung zur durchfuehrung des verfahrens
US4741357A (en) * 1986-06-04 1988-05-03 Industrie Zanussi Spa Washing machine with a control system for controlling the supply of water
US5921112A (en) * 1996-08-05 1999-07-13 Balay S.A. Transmitter housing for a water level transmitter in a washing machine
US6393872B2 (en) * 1999-06-22 2002-05-28 Whirlpool Corporation Control for an automatic washer with spray pretreatment
US6634194B1 (en) * 1999-12-30 2003-10-21 General Electric Company Washing machine overflow system
US7251963B2 (en) * 2002-09-26 2007-08-07 Lg Electronics Inc Drum-type washing machine
US20040148978A1 (en) * 2002-09-26 2004-08-05 Kim Kwang Soo Drum-type washing machine
US20070044521A1 (en) * 2005-09-01 2007-03-01 Samsung Electronics Co., Ltd. Drum washing machine
US7571626B2 (en) * 2005-09-01 2009-08-11 Samsung Electronics Co., Ltd. Drum washing machine
US20080264114A1 (en) * 2007-04-25 2008-10-30 Lg Electronics Inc. Drum type washing machine
US8701448B2 (en) * 2007-04-25 2014-04-22 Lg Electronics Inc. Drum type washing machine
US20090126418A1 (en) * 2007-09-13 2009-05-21 Lg Electronics Inc. Drum type washing machine
US8109121B2 (en) * 2007-09-13 2012-02-07 Lg Electronics Inc. Drum type washing machine with gasket drain
EP2388368A1 (fr) * 2010-05-17 2011-11-23 BSH Bosch und Siemens Hausgeräte GmbH Appareil de blanchisserie comportant un générateur de vapeur
WO2011144453A1 (fr) * 2010-05-17 2011-11-24 BSH Bosch und Siemens Hausgeräte GmbH Appareil de traitement du linge comprenant un générateur de vapeur
CN102869827A (zh) * 2010-05-17 2013-01-09 Bsh博世和西门子家用电器有限公司 包括蒸汽发生器的衣物用具
CN102869827B (zh) * 2010-05-17 2015-09-30 Bsh家用电器有限公司 包括蒸汽发生器的衣物用具

Also Published As

Publication number Publication date
ES267007A1 (es) 1961-09-01
GB980483A (en) 1965-01-13
ES267009A1 (es) 1961-08-16
CH370736A (fr) 1963-07-31
FR1293210A (fr) 1962-05-11
FR1288547A (fr) 1962-03-24
GB980482A (en) 1965-01-13
DE1238427B (de) 1967-04-13
ES267006A1 (es) 1962-01-16
AT240821B (de) 1965-06-25
FR1288548A (fr) 1962-03-24
ES267008A1 (es) 1961-09-01
NL264195A (fr) 1900-01-01
DE1203484B (de) 1965-10-21
FR1293211A (fr) 1962-05-11

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