FR2517758A1 - Remote controller for oil-fire fighting hose nozzle - uses high pressure fluid supply to hose direct coupled to either side of double-acting hydraulic piston to control orientation - Google Patents

Remote controller for oil-fire fighting hose nozzle - uses high pressure fluid supply to hose direct coupled to either side of double-acting hydraulic piston to control orientation Download PDF

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Publication number
FR2517758A1
FR2517758A1 FR8122653A FR8122653A FR2517758A1 FR 2517758 A1 FR2517758 A1 FR 2517758A1 FR 8122653 A FR8122653 A FR 8122653A FR 8122653 A FR8122653 A FR 8122653A FR 2517758 A1 FR2517758 A1 FR 2517758A1
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FR
France
Prior art keywords
hose
piston
high pressure
acting hydraulic
pressure fluid
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.)
Granted
Application number
FR8122653A
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French (fr)
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FR2517758B1 (en
Inventor
Claude Briet
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.)
DUBOIS ETS
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DUBOIS ETS
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 DUBOIS ETS filed Critical DUBOIS ETS
Priority to FR8122653A priority Critical patent/FR2517758A1/en
Publication of FR2517758A1 publication Critical patent/FR2517758A1/en
Application granted granted Critical
Publication of FR2517758B1 publication Critical patent/FR2517758B1/fr
Granted legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/24—Nozzles specially adapted for fire-extinguishing attached to ladders, poles, towers, or other structures with or without rotary heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3138—Directional control characterised by the positions of the valve element the positions being discrete
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/31552—Directional control characterised by the connections of the valve or valves in the circuit being connected to an output member and a return line
    • F15B2211/31558—Directional control characterised by the connections of the valve or valves in the circuit being connected to an output member and a return line having a single output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The appts. uses a double acting hydraulic cylinder (4) with both sides of the piston (5) directly supplied from the high pressure fluid used in the fibre hose. Conduits (10,11) from either end of the piston chamber (6) lead to remotely located drainage cocks (17,18) which can be individually varied (14) to regulate the pressure on either side of the piston (5) and hence the orientation of the hose. Non-return valves (15,16) ensure that fluid can only enter the piston chambers (8,9) on the inlet (7) side, and calibrated orifices (7A,7B) control the rate of admission. Calibrated orifices (17,18) also control the rate of outflow to the regulating valves (17,18). The arrangements can be adapted to permit the orientation of the nozzle to be controlled both in site and in azimuth.

Description

La présente invention concerne un dispositif de commande à distan.ce de pièces interven.an.t dan.s le fonctionnement d'une canalisation alimentée par une source de liquide sous pression. The present invention relates to a device for remote control of parts interven.an.t dan.s the operation of a pipe supplied by a source of pressurized liquid.

Elle concerne en particulier un dispositif de commande à distance du mouvement de lan.ces orientables à gros débit telles que celles utilisées dans la lutte contre les incendies, notamment dans des raffin.eries, sur des termin.aux ou des plate-formes pétrolières.It relates in particular to a device for remote control of the movement of lan.ces orientable at high flow rate such as those used in the fight against fires, in particular in refineries, on terminals or on oil platforms.

Les mouvements d'une telle lan.ce se décomposent en, un.e giration autour d'un axe vertical appelé balayage en azimut et une élévation dans un plan vertical appelé balayage en site. The movements of such a lan.ce are broken down into, a gyration around a vertical axis called azimuth scanning and an elevation in a vertical plane called elevation scanning.

Ces mouvements, lorsqu ils sont télécommandes, sont généralement provoqué s par des vérins hydrauliques agissant directement sur les organes de la lance proprement dite. L'énergie transmise aux vérins est alors fixée par la pression d'un. fluide qui est contrôlée par un. groupe hydraulique et des électrovannes. De man.ière également connue, les mouvements peuvent être gouvernés par deux moteurs électriques ou hydrauliques.These movements, when they are remote controls, are generally caused by hydraulic cylinders acting directly on the organs of the lance itself. The energy transmitted to the cylinders is then fixed by the pressure of one. fluid which is controlled by a. hydraulic group and solenoid valves. In a manner also known, the movements can be governed by two electric or hydraulic motors.

De tels procédés connus font appel à des circuits, des contacteurs, des électro-aimants et autres pièces complexes. Such known methods use circuits, contactors, electromagnets and other complex parts.

Ces dernières sont cependant insuffisamment fiables compte-tenu de ce que les matériels de lutte contre l'incendie servent peu, sont conservés dans des milieux parfois corrosifs, mais doivent pourtant rester en.permanence immédiatement opérationnels.The latter are however insufficiently reliable, given that the fire-fighting equipment is of little use, is kept in sometimes corrosive environments, but must nevertheless remain immediately operational.

En vue de pallier ces inconvénients, la présente invention propose un dispositif de commande à distance d'une pièce de canalisation alimentée par une source de liquide sous pression, par exemple une lance orientable faisant partie d'un installa- tion de lutte contre les gros incendies, lequel dispositif comporte au moin.s un vérin hydraulique à double effet, et est caractérisé en ce que les deux côtés dudit vérin sont l'un. et 1' autre directement alimentés par ladite source de liquide sous pression et sont reliés à des conduits de fuite adaptés à être sélectivement fermés ou ouverts,
La simplicité d'un tel dispositif garantit son efficazité et sa fiabilité. il ne fait pas intervenir d'autre source d'énergie que celle qui alimente la lance elle-meme, Une seule source de liquide sous pression est à prévoir, qui est abondante donc peu chère, mais toujours opérationnelle du moment que la lan.ce est alimentée, I1 en. découle un.e gran.de simplicité du dispositif de commande qui se trouve alors peu sensible aux risques de pannes, ou de détériorations. L'abondance du fluide sous pression, la simplicité des pièces de canalisations, et ses faibles risques de détérioration assurent, out-re sa fiabilité, un coût peu élevé.In order to overcome these drawbacks, the present invention provides a device for remote control of a pipe part supplied by a source of pressurized liquid, for example an adjustable lance forming part of an installation for combating large fire, which device comprises at least a double-acting hydraulic cylinder, and is characterized in that the two sides of said cylinder are one. and the other directly supplied by said source of pressurized liquid and are connected to leakage conduits adapted to be selectively closed or open,
The simplicity of such a device guarantees its efficiency and reliability. it does not involve any other source of energy than that which feeds the lance itself. is supplied, I1 in. follows un.e gran.de simplicity of the control device which is then not very sensitive to the risk of breakdowns, or damage. The abundance of fluid under pressure, the simplicity of the pipe parts, and its low risk of deterioration ensure, out-re its reliability, a low cost.

Les caractéristiques et avantages de l'invention ressor- tent de la description. qui suit, à titre d'exemple, en se ré gérant aux dessin.s annexés sur lesquels
la figure 1 est une vue en élévation, d'une lance orientable avec son. dispositif de commande selon. l'invention
la figure 2 est une vue en coupe, à plus grande échelle, dudit système de commande.The characteristics and advantages of the invention appear from the description. which follows, by way of example, by referring to the appended drawings on which
Figure 1 is an elevational view of an adjustable lance with sound. control device according to. the invention
Figure 2 is a sectional view, on a larger scale, of said control system.

L'exemple d'application représenté aux figures 1 et 2 correspond à une commande en site d'une lance d'incendie orien- table 1. Celle-ci est alimentée par un fût fixe 1S et à partir d'une source de liquide sous pression. 2, par exemple de l'eau ou un mélange à base d'eau.L'orientation de la lance 1 par rapport au fût 1A est fixée par un dispositif de comman.de 3 comportant un vérin 4 à double effet recevant un piston 5 dont on. voit la tige en. 5N dans un.e chambre 6, une canalisation 7 prélevant du liquide sous pression. à la source 2 pour l'amener par des orifices 7A et 7B aux extrémités 8 et 9 du vérin 4, ainsi que deux conduits 10 et ll reliant lesdites extrémités à deux orifices d'échappement à distan.ce 17 et 18 obturables par des robinets 12 et 13.Ceux-ci sont commandés par une manette 14 qui admet trois positions A,B,C, correspondant respectivement : à l'ouverture du robinet 12 et à la fermeture du robinet 13 ; à la. fermeture des deux robinets ; et à la fermeture du robinet 12 et à l'ouverture du robinet 13. Le vérin 4 est monté pivotant en 20 sur le fût lA, tan.dis que sa tige SK est articulée en. 21 sur la lan.ce 1. The application example represented in FIGS. 1 and 2 corresponds to an on-site command of an orientable fire hose 1. This is supplied by a fixed barrel 1S and from a source of liquid under pressure. 2, for example water or a water-based mixture. The orientation of the lance 1 relative to the barrel 1A is fixed by a control device 3 comprising a double-acting cylinder 4 receiving a piston 5 which one. sees the rod in. 5N in a chamber 6, a pipe 7 taking liquid under pressure. at the source 2 to bring it through orifices 7A and 7B at the ends 8 and 9 of the jack 4, as well as two conduits 10 and ll connecting said ends to two remote exhaust orifices 17 and 18 closable by taps 12 and 13. These are controlled by a lever 14 which admits three positions A, B, C, corresponding respectively: to the opening of the tap 12 and to the closing of the tap 13; to the. closing of the two taps; and when the tap 12 is closed and when the tap is opened 13. The jack 4 is pivotally mounted at 20 on the barrel lA, tan.dis that its rod SK is articulated at. 21 on the lan.ce 1.

L'orientation. de la lance par rapport au fût 1A est fixée par la position. du piston. 5 dans la chambre 6 du vérin 4. Des clapets anti-retour 15 et 16 sont avan.tageusement prévus dans la canalisation 7 au voisinage des extrémités 8 et 9 pour assurer un bon verrouillage hydraulique dan.s la position. neutre
B de la manette 14.Orientation. of the lance relative to the barrel 1A is fixed by the position. piston. 5 in the chamber 6 of the jack 4. Non-return valves 15 and 16 are avan.tagement provided in the pipe 7 in the vicinity of the ends 8 and 9 to ensure good hydraulic locking dan.s position. neutral
Joystick B 14.

La position. de la lan.ce orientable 1 se règle à l'aide de la manette 14. La position neutre B correspond à une égalité des pression.s de liquide aux extrémités 8 et 9 du vérin. 4 de part et d'autre du piston 5. La position A de la manette 14 correspond à l'ouverture du robinet 12, d'où un.e baisse de la pression en l'extrémité 8 du vérin. 4 tandis qu'en 9 la pres sion reste inchangée. Le déséquilibre des pressions de part et d'autre du piston. 5 provoque son mouvement ascen.dant, comme l'indiquent des flèches F à la figure 2. La position. C de la man.ette 14 correspon.d au mouvement inverse, descendant, du piston. 5. The position. of the adjustable lan.ce 1 is adjusted using the handle 14. The neutral position B corresponds to an equality of the pressure.s of liquid at the ends 8 and 9 of the jack. 4 on either side of the piston 5. The position A of the handle 14 corresponds to the opening of the valve 12, whence a drop in pressure at the end 8 of the jack. 4 while in 9 the pressure remains unchanged. The imbalance of pressures on both sides of the piston. 5 causes its upward movement, as indicated by arrows F in FIG. 2. The position. C of lever 14 corresponding to the reverse, downward movement of the piston. 5.

Lorsque la lance 1 a atteint l'orientation voulue, il suffit de ramender la man.ette 14 en sa position neutre B ; le piston. 5 est alors maintenu en. sa position, étant soumis sur ses deux faces à un.e même pression égale à celle du liquide fourni par la source 2. Les clapets 15 et 16 évitent toute in- tercommun.ication entre les deux parties de la chambre 6 et permettent, gracie à l'incompressibilité de l'eau, un. blocage efficace de la lance. When the lance 1 has reached the desired orientation, it suffices to return the handle 14 to its neutral position B; the piston. 5 is then kept in. its position, being subjected on its two faces to a same pressure equal to that of the liquid supplied by the source 2. The valves 15 and 16 avoid any intercommun.ication between the two parts of the chamber 6 and allow, free of charge to the incompressibility of water, one. effective locking of the lance.

Lorsque la man.ette 14 est en position A ou C la puissance développée par le piston est égale au produit de sa section par la différen.ce de pression entre ses deux faces. La vitesse d'établissement de ladite différence de pression dépen.d elle méme de la section des canalisations 10 et 11, et du débit des robinets 12 et 13. Les orifices d'admission 7A et 7B, ainsi que les orifices d'échappement à distance 17 et 18 sont de préféren.ce calibrés ; cela permet d'obtenir un maximum d'efficacité et une vitesse de mouvement appropriée à l'utilisation. de là lance. When the handle 14 is in position A or C the power developed by the piston is equal to the product of its section by the pressure difference between its two faces. The speed of establishment of said pressure difference itself depends on the cross-section of the pipes 10 and 11, and on the flow rate of the valves 12 and 13. The intake ports 7A and 7B, as well as the exhaust ports at distance 17 and 18 are preferably calibrated; this allows maximum efficiency and a speed of movement appropriate to the use to be obtained. from there launches.

Le dispositif décrit ci-dessus pour un.e comman.de en. site peut évidemment s'appliquer à une comman.de en. azimut, ou à tout autre mouvement que l'on. désire commander d'un.e quelconque pièce de canalisation de liquide sous pression : ouverture ou fermeture d'un robinet, réglage d'un. diffuseur en cône ou en nappe par exemple.  The device described above for a command in. site can obviously apply to a comman.de in. azimuth, or any other movement than that. wishes to order from any part of pipe for pressurized liquid: opening or closing of a tap, setting of a. cone or sheet diffuser for example.

Claims (6)

REVENDICATIONS 1. Dispositif de comman.de à distance d'une pièce de can.alisation. (1) alimentée par une source de liquide sous pression 1. Device for remote control of a pipe part. (1) supplied by a source of pressurized liquid (2)j dispositif comportant au moin.s un. vérin. hydraulique (4) à double effet, caractérisé en. ce que les deux côtés dudit vérin. sont l'un et l'autre directement alimentés par laditesource de liquide sous pression. (2) et sont reliés à deux conduits de fuite (10 et 11) adaptés à être sélectivement fermés ou ouverts. (2) j device comprising at least one. cylinder. hydraulic (4) double acting, characterized in. what both sides of said cylinder. both are directly supplied by said source of pressurized liquid. (2) and are connected to two leakage conduits (10 and 11) adapted to be selectively closed or open. 2. Dispositif selon la revendIcation 1, caractérisé en ce que les extrémités (8 et 9) du vérin sont alimentées par la source de liquide sous pression par l'intermédiaire de clapets anti-retour (15 et 16). 2. Device according to revendIcation 1, characterized in that the ends (8 and 9) of the jack are supplied by the source of pressurized liquid by means of non-return valves (15 and 16). 3. Dispositif selon les revendications 1 ou 2, caractérisé en ce que les extrémités (8 et 9) du vérin son.t-alimentées par la source de liquide sous pression. (2) par l'intermédiaire d' orifices d'admission calibrés (7A et 7B). 3. Device according to claims 1 or 2, characterized in that the ends (8 and 9) of the cylinder son.t-supplied by the source of pressurized liquid. (2) via calibrated intake ports (7A and 7B). 4. Dispositif selon. l'une quelconque des revendications 1 à 3, caractérisé en ce que les conduits de fuite (10 et 11) ont des orifices d'échappement calibrés (17 et 18).  4. Device according to. any one of claims 1 to 3, characterized in that the leakage conduits (10 and 11) have calibrated exhaust ports (17 and 18). 5. Dispositif selon l'une quelconque des revendication.s pré céden.tes, caractérisé en ce que les conduits de fuite (10 et 11) sont adaptés à être sélectivement fermés ou ouverts au moyen. d'une seule man.ette (14). 5. Device according to any one of the preceding claims. Characterized in that the leakage conduits (10 and 11) are adapted to be selectively closed or opened by means. with a single lever (14). 6. Dispositif selon. la reven.dication. 5, caractérisé en ce que la manette (14) admet trois positions : une première position. de travail (A) dans laquelle un des conduits (10) est ouvert et l'autre (11) est fermé ; une position neutre B dans laquelle les deux conduits (10 et 11) sont fermés ; et un deuxième position de travail (C) dans laquelle le conduit (10) est fermé tan.dis que l'autre conduit (11) est ouvert.  6. Device according to. claim. 5, characterized in that the lever (14) admits three positions: a first position. working (A) in which one of the conduits (10) is open and the other (11) is closed; a neutral position B in which the two conduits (10 and 11) are closed; and a second working position (C) in which the duct (10) is closed while the other duct (11) is open.
FR8122653A 1981-12-03 1981-12-03 Remote controller for oil-fire fighting hose nozzle - uses high pressure fluid supply to hose direct coupled to either side of double-acting hydraulic piston to control orientation Granted FR2517758A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8122653A FR2517758A1 (en) 1981-12-03 1981-12-03 Remote controller for oil-fire fighting hose nozzle - uses high pressure fluid supply to hose direct coupled to either side of double-acting hydraulic piston to control orientation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8122653A FR2517758A1 (en) 1981-12-03 1981-12-03 Remote controller for oil-fire fighting hose nozzle - uses high pressure fluid supply to hose direct coupled to either side of double-acting hydraulic piston to control orientation

Publications (2)

Publication Number Publication Date
FR2517758A1 true FR2517758A1 (en) 1983-06-10
FR2517758B1 FR2517758B1 (en) 1984-03-09

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FR8122653A Granted FR2517758A1 (en) 1981-12-03 1981-12-03 Remote controller for oil-fire fighting hose nozzle - uses high pressure fluid supply to hose direct coupled to either side of double-acting hydraulic piston to control orientation

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4696221A (en) * 1982-12-14 1987-09-29 Otis Engineering Corporation Dual valve control for double action hydraulic cylinder
WO1992004943A1 (en) * 1990-09-26 1992-04-02 Fred Sparling Remote nozzle unit
GB2261178A (en) * 1991-11-07 1993-05-12 British Aerospace A fluid supply apparatus
FR2688729A1 (en) * 1992-03-03 1993-09-24 Alfieri Patrick Sprinkling apparatus for a machine tool with driving of the orientation of the jet
CN108434642A (en) * 2018-02-28 2018-08-24 邹永杰 A kind of movable type fire-fighting sprinkling fire equipment
CN109589525A (en) * 2018-11-15 2019-04-09 江苏峰汇智联科技有限公司 A kind of Multifunctional intelligent fire monitor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB581665A (en) * 1944-10-05 1946-10-21 Messier Aircraft Equipment Ltd Improvements in or relating to hydraulic control systems
US2593921A (en) * 1950-04-04 1952-04-22 Samuel Eastman Co Inc Nozzle pipe for use with aerial ladders
FR1265864A (en) * 1960-05-07 1961-07-07 A Dubois Sa Des Ets Improvements to fluid and reciprocating devices
FR2161013A1 (en) * 1971-11-24 1973-07-06 Westinghouse Bremsen
FR2338056A1 (en) * 1976-01-14 1977-08-12 Flandre Rene Remote controlled fire extinguisher turret - has vertical rotary supply tube and cable operated nozzle direction control
EP0039247A2 (en) * 1980-04-30 1981-11-04 Chubb Fire Limited Hydraulic control system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB581665A (en) * 1944-10-05 1946-10-21 Messier Aircraft Equipment Ltd Improvements in or relating to hydraulic control systems
US2593921A (en) * 1950-04-04 1952-04-22 Samuel Eastman Co Inc Nozzle pipe for use with aerial ladders
FR1265864A (en) * 1960-05-07 1961-07-07 A Dubois Sa Des Ets Improvements to fluid and reciprocating devices
FR2161013A1 (en) * 1971-11-24 1973-07-06 Westinghouse Bremsen
FR2338056A1 (en) * 1976-01-14 1977-08-12 Flandre Rene Remote controlled fire extinguisher turret - has vertical rotary supply tube and cable operated nozzle direction control
EP0039247A2 (en) * 1980-04-30 1981-11-04 Chubb Fire Limited Hydraulic control system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4696221A (en) * 1982-12-14 1987-09-29 Otis Engineering Corporation Dual valve control for double action hydraulic cylinder
WO1992004943A1 (en) * 1990-09-26 1992-04-02 Fred Sparling Remote nozzle unit
US5249632A (en) * 1990-09-26 1993-10-05 Helitactics Ltd. Remote nozzle unit
GB2261178A (en) * 1991-11-07 1993-05-12 British Aerospace A fluid supply apparatus
GB2261178B (en) * 1991-11-07 1995-06-28 British Aerospace A fluid supply apparatus
FR2688729A1 (en) * 1992-03-03 1993-09-24 Alfieri Patrick Sprinkling apparatus for a machine tool with driving of the orientation of the jet
CN108434642A (en) * 2018-02-28 2018-08-24 邹永杰 A kind of movable type fire-fighting sprinkling fire equipment
CN109589525A (en) * 2018-11-15 2019-04-09 江苏峰汇智联科技有限公司 A kind of Multifunctional intelligent fire monitor

Also Published As

Publication number Publication date
FR2517758B1 (en) 1984-03-09

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