FR1505487A - Perfectionnement aux joints tournants à régulation de fuite - Google Patents

Perfectionnement aux joints tournants à régulation de fuite

Info

Publication number
FR1505487A
FR1505487A FR81930A FR81930A FR1505487A FR 1505487 A FR1505487 A FR 1505487A FR 81930 A FR81930 A FR 81930A FR 81930 A FR81930 A FR 81930A FR 1505487 A FR1505487 A FR 1505487A
Authority
FR
France
Prior art keywords
leak
improvement
rotary joints
controlled rotary
controlled
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
Application number
FR81930A
Other languages
English (en)
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.)
GUINARD POMPES
Original Assignee
GUINARD POMPES
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 GUINARD POMPES filed Critical GUINARD POMPES
Priority to FR81930A priority Critical patent/FR1505487A/fr
Priority to GB46317/67A priority patent/GB1176695A/en
Priority to US675627A priority patent/US3527465A/en
Priority to LU54684D priority patent/LU54684A1/xx
Priority to NL6714250A priority patent/NL6714250A/xx
Priority to BE705717D priority patent/BE705717A/xx
Application granted granted Critical
Publication of FR1505487A publication Critical patent/FR1505487A/fr
Priority to NL727215487A priority patent/NL150565B/xx
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/122—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
    • F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
    • F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
    • F16J15/3416—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities with at least one continuous groove

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR81930A 1966-10-28 1966-10-28 Perfectionnement aux joints tournants à régulation de fuite Expired FR1505487A (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR81930A FR1505487A (fr) 1966-10-28 1966-10-28 Perfectionnement aux joints tournants à régulation de fuite
GB46317/67A GB1176695A (en) 1966-10-28 1967-10-10 Improvements in or relating to Rotary Packings.
US675627A US3527465A (en) 1966-10-28 1967-10-16 Rotary packing for use in rotary machines and more particularly in pumps
LU54684D LU54684A1 (fr) 1966-10-28 1967-10-17
NL6714250A NL6714250A (fr) 1966-10-28 1967-10-20
BE705717D BE705717A (fr) 1966-10-28 1967-10-27
NL727215487A NL150565B (nl) 1966-10-28 1972-11-16 Pakking met lekregeling voor een machine met een draaibare as.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR81930A FR1505487A (fr) 1966-10-28 1966-10-28 Perfectionnement aux joints tournants à régulation de fuite

Publications (1)

Publication Number Publication Date
FR1505487A true FR1505487A (fr) 1967-12-15

Family

ID=8620122

Family Applications (1)

Application Number Title Priority Date Filing Date
FR81930A Expired FR1505487A (fr) 1966-10-28 1966-10-28 Perfectionnement aux joints tournants à régulation de fuite

Country Status (6)

Country Link
US (1) US3527465A (fr)
BE (1) BE705717A (fr)
FR (1) FR1505487A (fr)
GB (1) GB1176695A (fr)
LU (1) LU54684A1 (fr)
NL (1) NL6714250A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002157A1 (fr) * 1977-11-22 1979-05-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Pompe
EP0013678A1 (fr) * 1979-01-15 1980-08-06 Crane Packing Company Joint d'étanchéité mécanique muni de gorges en spirale, à auto-rétablissement de la position relative
FR2477663A1 (fr) * 1980-03-10 1981-09-11 Stroemungsmasch Anst Joint d'etancheite pour anneau de glissement a surface de glissement refroidie
EP0148583A1 (fr) * 1983-12-22 1985-07-17 LUCAS INDUSTRIES public limited company Pompes à combustible
EP0235392A1 (fr) * 1986-01-04 1987-09-09 Fortuna-Werke Maschinenfabrik GmbH Soufflante pour la circulation de quantités de gaz élevées, notamment pour des lasers de grande puissance
DE3842451A1 (de) * 1988-12-16 1990-06-21 Burgmann Dichtungswerk Feodor Gleitringdichtung
EP0620359A1 (fr) * 1993-04-13 1994-10-19 Framatome Dispositif d'étanchéité des fuites à l'atmosphère d'une turbine à vapeur

Families Citing this family (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704019A (en) * 1970-06-19 1972-11-28 Gen Electric Spiral groove face seals
US3782737A (en) * 1970-07-13 1974-01-01 Nasa Spiral groove seal
US3675935A (en) * 1970-07-13 1972-07-11 Nasa Spiral groove seal
US3767212A (en) * 1970-12-21 1973-10-23 Nasa Spiral groove seal
SU406481A1 (fr) * 1971-07-30 1974-12-05
JPS5828466B2 (ja) * 1978-10-25 1983-06-16 大豊工業株式会社 メカニカルシ−ル
US4491331A (en) * 1981-12-23 1985-01-01 Hughes Tool Company Grooved mechanical face seal
DE3223703C2 (de) * 1982-06-25 1984-05-30 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Gasgesperrte Wellendichtung mit radialem Dichtspalt
JPS599367A (ja) * 1982-07-07 1984-01-18 Hitachi Ltd 軸封装置
JPS60222667A (ja) * 1984-04-20 1985-11-07 Nippon Pillar Packing Co Ltd 動圧形非接触メカニカルシ−ル
GB2167817B (en) * 1984-12-03 1988-04-20 Aeroquip Rotary seal with variable pitch hydrothread
GB2173264B (en) * 1985-04-04 1988-04-27 Aeroquip International Inc Ptfe sealing element for shaft seals
FI864339A0 (fi) * 1986-10-27 1986-10-27 Safematic Ltd Oy Glidringstaetning.
US5368314A (en) * 1986-10-28 1994-11-29 Pacific Wietz Gmbh & Co. Kg Contactless pressurizing-gas shaft seal
CH677266A5 (fr) * 1986-10-28 1991-04-30 Pacific Wietz Gmbh & Co Kg
SE8701123L (sv) * 1987-03-19 1988-09-20 Svenska Rotor Maskiner Ab Skruvrotormaskin
DE3722110A1 (de) * 1987-07-03 1989-01-12 Burgmann Dichtungswerk Feodor Die anordnung einer gasgeschmierten gleitringdichtung und dichtungsanordnung fuer eine welle
SE459363B (sv) * 1987-11-17 1989-06-26 Skf Ab Axeltaetning
DE3901362A1 (de) * 1989-01-18 1990-07-19 Burgmann Dichtungswerk Feodor Gleitringdichtung zur abdichtung eines gasfoermigen mediums
US5253876A (en) * 1990-03-28 1993-10-19 Eg&G Sealol, Inc. System and method for actively cooling dry-running gas seals
US5066026A (en) * 1990-06-11 1991-11-19 Kaydon Corporation Gas face seal
US5071141A (en) * 1990-07-17 1991-12-10 John Crane Inc. Spiral groove seal arrangement for high vapor-pressure liquids
US5193974A (en) * 1991-07-01 1993-03-16 Bw/Ip International, Inc. Dynamic pressure recovery seal
DE4303237A1 (de) * 1992-02-06 1993-10-21 Eagle Ind Co Ltd Gasdichtung
DE4303050B4 (de) * 1992-02-26 2004-02-26 Sedy, Josef, Mt. Prospect Gleitringdichtung
US5722665A (en) * 1992-02-26 1998-03-03 Durametallic Corporation Spiral groove face seal
US5308229A (en) * 1992-06-03 1994-05-03 Pmc Liquiflo Equipment Company Pump having an internal gas pump
CA2096759A1 (fr) * 1992-08-06 1994-02-07 Mark G. Pospisil Garniture mecanique de surface terminale
US5375853B1 (en) * 1992-09-18 1998-05-05 Crane John Inc Gas lubricated barrier seal
CA2147739A1 (fr) * 1993-08-26 1995-03-02 Josef Sedy Joint mecanique a double rangee de rainures
AU685502B2 (en) * 1993-09-01 1998-01-22 Durametallic Corporation Face seal with angled and annular grooves
US5762342A (en) * 1996-05-03 1998-06-09 Durametallic Corporation Mechanical seal with controller for regulating face contact pressure
US6142478A (en) * 1998-02-06 2000-11-07 John Crane Inc. Gas lubricated slow speed seal
US6446976B1 (en) 2000-09-06 2002-09-10 Flowserve Management Company Hydrodynamic face seal with grooved sealing dam for zero-leakage
GB2375148A (en) * 2001-04-30 2002-11-06 Corac Group Plc A dry gas seal
US7744094B2 (en) * 2004-11-09 2010-06-29 Eagle Industry Co., Ltd. Mechanical seal device
US7445087B2 (en) * 2004-12-17 2008-11-04 Mt Hydraulics, Llc Seal-less head apparatus
US20060207834A1 (en) * 2005-03-03 2006-09-21 Honeywell International, Inc. Aircraft engine accessory drive air film riding bulkhead seal
US20060214378A1 (en) * 2005-03-28 2006-09-28 Xiaoqing Zheng Brush seal with spiral groove back plate
US7494130B2 (en) 2006-02-13 2009-02-24 Freudenberg-Nok General Partnership Bi-directional pattern for dynamic seals
DE102006053165A1 (de) * 2006-11-09 2008-05-15 Carl Freudenberg Kg Gleitringdichtung, Gleitringdichtungsanordnung und deren Verwendung
US7891670B2 (en) * 2008-02-01 2011-02-22 Freudenberg-Nok General Partnership Multi-directional shaft seal
JP5456772B2 (ja) * 2009-05-25 2014-04-02 イーグル工業株式会社 シール装置
JP5197722B2 (ja) * 2010-11-26 2013-05-15 日立オートモティブシステムズ株式会社 ウォータポンプ
DE102012012443A1 (de) * 2012-06-22 2013-12-24 Wilo Se Motorkreiselpumpe mit einer Gleitringdichtung
CN104334939B (zh) * 2012-08-04 2017-05-31 伊格尔工业股份有限公司 滑动部件
WO2014050920A1 (fr) * 2012-09-29 2014-04-03 イーグル工業株式会社 Partie coulissante
US8919782B2 (en) 2012-10-19 2014-12-30 Freudenberg-Nok General Partnership Dynamic lay down lip seal with bidirectional pumping feature
EP3246604B1 (fr) * 2013-04-24 2020-05-13 Eagle Industry Co., Ltd. Composant coulissant
GB201403898D0 (en) * 2014-03-05 2014-04-16 Eriks Ind Services Ltd Seal assembly
US10036474B2 (en) * 2015-09-23 2018-07-31 Hamilton Sundstrand Corporation Vented lift off seal assemblies
EP3499098B1 (fr) 2016-08-15 2024-04-24 Eagle Industry Co., Ltd. Composant coulissant
USRE50849E1 (en) 2016-11-16 2026-03-31 Eagle Industry Co., Ltd. Sliding component
WO2019139107A1 (fr) 2018-01-12 2019-07-18 イーグル工業株式会社 Élément coulissant
EP3748205B1 (fr) 2018-02-01 2024-12-18 Eagle Industry Co., Ltd. Pièces coulissantes
KR102498751B1 (ko) 2018-08-01 2023-02-13 이구루코교 가부시기가이샤 슬라이딩 부품
US11821462B2 (en) 2018-08-24 2023-11-21 Eagle Industry Co., Ltd. Sliding member
EP4166823A1 (fr) 2018-10-01 2023-04-19 Eagle Industry Co., Ltd. Élément coulissant
KR102661123B1 (ko) 2018-10-24 2024-04-29 이구루코교 가부시기가이샤 슬라이딩 부재
EP4198353B1 (fr) 2018-11-30 2025-03-12 Eagle Industry Co., Ltd. Composant coulissant
KR102541901B1 (ko) 2018-12-21 2023-06-13 이구루코교 가부시기가이샤 슬라이딩 부품
JP7292813B2 (ja) * 2019-02-04 2023-06-19 イーグル工業株式会社 摺動部品
KR102634941B1 (ko) 2019-02-04 2024-02-08 이구루코교 가부시기가이샤 슬라이딩 부품
JP7387239B2 (ja) 2019-02-04 2023-11-28 イーグル工業株式会社 摺動部品
KR102610648B1 (ko) 2019-02-04 2023-12-07 이구루코교 가부시기가이샤 슬라이딩 부품 및 슬라이딩 부품의 제조 방법
KR102647265B1 (ko) 2019-02-04 2024-03-14 이구루코교 가부시기가이샤 슬라이딩 부품
WO2020162349A1 (fr) 2019-02-04 2020-08-13 イーグル工業株式会社 Élément coulissant
US11933405B2 (en) 2019-02-14 2024-03-19 Eagle Industry Co., Ltd. Sliding component
WO2020171102A1 (fr) 2019-02-21 2020-08-27 イーグル工業株式会社 Composant coulissant
JP7419346B2 (ja) 2019-03-22 2024-01-22 イーグル工業株式会社 摺動部品
JP7353726B2 (ja) 2019-04-24 2023-10-02 イーグル工業株式会社 摺動部品
CN114127430B (zh) * 2019-07-26 2024-10-29 伊格尔工业股份有限公司 滑动部件
KR102760809B1 (ko) 2020-03-31 2025-02-03 이구루코교 가부시기가이샤 슬라이딩 부품
EP4467850A3 (fr) 2020-05-11 2025-03-19 Eagle Industry Co., Ltd. Composant coulissant
WO2021246371A1 (fr) 2020-06-02 2021-12-09 イーグル工業株式会社 Pièce coulissante
EP4160057A4 (fr) 2020-06-02 2024-06-26 Eagle Industry Co., Ltd. Élément coulissant
CN115917192A (zh) 2020-07-06 2023-04-04 伊格尔工业股份有限公司 滑动部件
JP7528218B2 (ja) 2020-07-06 2024-08-05 イーグル工業株式会社 回転機械
KR102868751B1 (ko) 2020-07-06 2025-10-14 이구루코교 가부시기가이샤 편심 슬라이딩 어셈블리
EP4177501A4 (fr) 2020-07-06 2024-08-14 Eagle Industry Co., Ltd. Composant coulissant
JP7497132B2 (ja) 2020-07-06 2024-06-10 イーグル工業株式会社 摺動部品
KR20230022986A (ko) 2020-07-06 2023-02-16 이구루코교 가부시기가이샤 슬라이딩 부품
CN112197008B (zh) * 2020-11-02 2025-04-04 昆山昕智仁机械设备有限公司 一种双驱动集装式机械密封装置
KR102922811B1 (ko) 2021-03-12 2026-02-04 이구루코교 가부시기가이샤 슬라이딩 부품
EP4372253A4 (fr) * 2021-07-13 2025-07-16 Eagle Ind Co Ltd Éléments coulissants
EP4394213A4 (fr) 2021-08-25 2025-08-27 Eagle Ind Co Ltd Paire de composants coulissants
US12404936B2 (en) 2021-09-28 2025-09-02 Eagle Indusry Co., Ltd. Sliding component

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2087313A (en) * 1936-07-20 1937-07-20 Pacific Pump Works Seal for rotating shafts
GB827015A (en) * 1957-02-04 1960-01-27 Atomic Energy Authority Uk Improvements in or relating to shaft seals
GB1009940A (en) * 1957-10-18 1965-11-17 Atomic Energy Authority Uk Gas viscosity plate glands
US3085808A (en) * 1960-05-17 1963-04-16 Worthington Corp Mechanical seal with controlled leakage
GB1012085A (en) * 1964-05-25 1965-12-08 Sealol High pressure fluid seal with controlled leakage
US3347552A (en) * 1964-06-04 1967-10-17 Westinghouse Electric Corp Controlled leakage face type seals
US3421768A (en) * 1966-04-20 1969-01-14 Nasa Foil seal

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002157A1 (fr) * 1977-11-22 1979-05-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Pompe
US4242039A (en) * 1977-11-22 1980-12-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Pump impeller seals with spiral grooves
EP0013678A1 (fr) * 1979-01-15 1980-08-06 Crane Packing Company Joint d'étanchéité mécanique muni de gorges en spirale, à auto-rétablissement de la position relative
FR2477663A1 (fr) * 1980-03-10 1981-09-11 Stroemungsmasch Anst Joint d'etancheite pour anneau de glissement a surface de glissement refroidie
EP0148583A1 (fr) * 1983-12-22 1985-07-17 LUCAS INDUSTRIES public limited company Pompes à combustible
EP0235392A1 (fr) * 1986-01-04 1987-09-09 Fortuna-Werke Maschinenfabrik GmbH Soufflante pour la circulation de quantités de gaz élevées, notamment pour des lasers de grande puissance
US4764086A (en) * 1986-01-04 1988-08-16 Fortuna-Werke Maschinenfabrik Gmbh Blower for circulating larger gas volumes, in particular for high-power laser systems
DE3842451A1 (de) * 1988-12-16 1990-06-21 Burgmann Dichtungswerk Feodor Gleitringdichtung
EP0620359A1 (fr) * 1993-04-13 1994-10-19 Framatome Dispositif d'étanchéité des fuites à l'atmosphère d'une turbine à vapeur
FR2704021A1 (fr) * 1993-04-13 1994-10-21 Framatome Sa Dispositif d'étanchéité des fuites à l'atmosphère d'une turbine à vapeur.

Also Published As

Publication number Publication date
LU54684A1 (fr) 1967-12-18
BE705717A (fr) 1968-04-29
NL6714250A (fr) 1968-04-29
US3527465A (en) 1970-09-08
GB1176695A (en) 1970-01-07

Similar Documents

Publication Publication Date Title
FR1505487A (fr) Perfectionnement aux joints tournants à régulation de fuite
FR1515051A (fr) Perfectionnement aux joints de cardan
FR1504173A (fr) Potentiomètre
FR1512838A (fr) Joint à rotule étanche
BE792010Q (fr) Construction de joint
FR94333E (fr) Perfectionnement aux joints de cardan.
CH470545A (de) Fugendichtung
AT267263B (de) Weitwinkelgelenk
FR1537043A (fr) Perfectionnement aux scellements céramique-métal
CH482544A (fr) Machine à photo-composer
FR1494162A (fr) Perfectionnements aux catharomètres
FR1537284A (fr) Perfectionnements relatifs aux articulations
FR1439515A (fr) Perfectionnements apportés aux joints de cardan
FR1444952A (fr) Perfectionnement aux moufles
FR1456852A (fr) Perfectionnement aux béquilles à rallonge
FR1493446A (fr) Perfectionnement aux crémones à languette
FR91582E (fr) Perfectionnement aux joints homocinétiques
FR1433381A (fr) Perfectionnement aux constructions
FR1480294A (fr) Arroseur rotatif à brise-jet
FR1449828A (fr) Rotule à blocage
FR1573302A (fr) Pefectionnements aux joints de cardan
FR1451896A (fr) Perfectionnements aux accouplements rotatifs
FR1471469A (fr) Robinet à tournant
FR1542445A (fr) Perfectionnement aux pinces à main
FR1458650A (fr) Perfectionnement aux charrues