EP0330370A2 - Feuerschläuche - Google Patents

Feuerschläuche Download PDF

Info

Publication number
EP0330370A2
EP0330370A2 EP89301457A EP89301457A EP0330370A2 EP 0330370 A2 EP0330370 A2 EP 0330370A2 EP 89301457 A EP89301457 A EP 89301457A EP 89301457 A EP89301457 A EP 89301457A EP 0330370 A2 EP0330370 A2 EP 0330370A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
hose
valve
interlocking
clip
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
EP89301457A
Other languages
English (en)
French (fr)
Other versions
EP0330370A3 (en
EP0330370B1 (de
Inventor
Dryden Bell
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.)
Thorn Security Ltd
Original Assignee
Thorn Security Ltd
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 Thorn Security Ltd filed Critical Thorn Security Ltd
Priority to AT89301457T priority Critical patent/ATE71848T1/de
Publication of EP0330370A2 publication Critical patent/EP0330370A2/de
Publication of EP0330370A3 publication Critical patent/EP0330370A3/en
Application granted granted Critical
Publication of EP0330370B1 publication Critical patent/EP0330370B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/76—Details or accessories

Definitions

  • This invention relates to fire hoses and in particular to devices known as interlocking devices, for such hoses.
  • a hose interlocking device prevents the control nozzle of a fire hose reel from being removed from the hose reel isolating valve without first opening the valve and pressurising the hose ready for use.
  • a conventional form of such interlocking devices comprises a hinged interlocking clip which is clamped to the neck of a hose reel isolating valve.
  • the isolating valve has a specially adapted handwheel provided with a slot on its underside for retention of the interlocking clip when the handwheel is in the closed position.
  • the hose nozzle is secured by hooking into the interlocking clip which in turn is retained in place by the handwheel of the closed isolating valve.
  • the hose nozzle can only be released from the clip by first opening the isolating valve.
  • Interlocking devices of the kind described above suffer from the disadvantage that in order to secure the fire hose nozzle in the interlocking clip, the nozzle has to be shut off under pressure and hooked into the clip before the isolating valve is closed down, locking the hose nozzle into position and leaving the hose under pressure. The only way to release the pressure is to open the nozzle in the stowed position, which inevitably leads to significant spillage of water.
  • an arrangement for releasable securing of a hose nozzle to a valve unit comprising a nozzle retaining means integral with or attachable to the hose nozzle and an interlocking means associated with the valve unit to which the hose nozzle is to be attached when not in use, the said nozzle retaining means being provided with a coupling member to enable the hose nozzle to be secured to the interlocking means of the valve unit after the valve has been closed and the interlocking means locked into position.
  • the coupling member is shaped to be slidably attachable to the interlocking means.
  • a modified hose-reel valve interlocking means provided with a securing member co-operable with the coupling member of the nozzle retaining means to prevent the removal of the nozzle retaining means from the valve interlocking means, once in place, without first turning on the valve.
  • the securing member of the interlocking means is a retaining spring.
  • Figure 1 shows generally at 1 a standard fire hose reel isolating valve with a handwheel 5 which incorporates a slot 6 on its underside.
  • the slot 6 on the handwheel 5 engages the interlocking clip 3, in which the hose nozzle 2 is resting, and locks the clip 3 and hence nozzle 2 in the position shown.
  • This is the stowing position of the hose control nozzle 2.
  • the interaction of the handwheel 5 and interlocking clip 3 thus ensure that the control nozzle 2 of the fire hose (not shown) cannot be removed from the hose reel isolating valve 1 without first opening the valve 1 and pressurising the hose ready for use.
  • a hose reel isolating valve, embodying the invention, is shown in Figure 2 and comprises an interlocking clip 7, which is different from the clip 3 shown in Figure 1.
  • the interlocking clip 7 is provided with a retaining spring 8.
  • Figure 3 is a part-sectional view of the device shown in Figure 2 taken along the line X-X and shows the interlocking clip 7 and retaining spring 8 in more detail.
  • Figure 3 also shows a control nozzle retaining clamp 9 according to the invention.
  • Clamp 9 is attached to the control nozzle of the fire hose (not shown) immediately behind the nozzle and is provided with a slotted disc coupling piece 10 which is slidably attachable to the interlocking clip 7.
  • control nozzle of the fire hose is stowed away as follows: firstly, the control nozzle is shut off under pressure; then the interlocking clip 7 is positioned so that the free end of the clip is immediately underneath the depression 6 in the underside of the isolating valve handwheel 5; the isolating valve 1 is then closed by screwing down the handwheel which, in the closed position locks the interlocking clip 7 in position. Having closed the isolating valve 1, the control nozzle of the hose can now be opened again to release the pressure from the hose and dispense any remaining water at a convenient location.
  • the hose nozzle can now be secured in the interlocking clip 7 by sliding the slotted disc coupling piece 10, of the nozzle retaining clamp 9, into a cutaway hole (not shown) at the base of the interlocking clip 6, pushing back the retaining spring 8 and engaging the legs (not shown) of the clip 7 into the slot (not shown) at each side of the disc 10.
  • the clamp 9 (and hence hose control nozzle) is locked into position, as shown in Figure 4.
  • the spring 8 and interlocking clip 7 thus acts as a non-return mechanism, preventing the control nozzle from being removed without first opening the isolating valve 1 and releasing the interlocking clip 7, from engagement with slot 6, whereupon disc 10 can be moved further up, and thereafter out of the slot of clip 7 (see Figure 5).
  • the nozzle retaining clamp 9 can form an integral part of the control nozzle i.e. the control nozzle can have a specially shaped end piece which fits directly into the interlocking clip 7.
  • the present invention provides a retaining clamp for the control nozzle of a standard fire hose which enables the control nozzle to be stowed in the interlocking clip of the fire hose isolating valve after the valve has been closed, thereby allowing the pressure in the hose to be released before the control nozzle is stowed away.
  • the present invention can also be embodied by appropriate modification of conventional equipment.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Supports For Pipes And Cables (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
EP89301457A 1988-02-20 1989-02-15 Feuerschläuche Expired - Lifetime EP0330370B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89301457T ATE71848T1 (de) 1988-02-20 1989-02-15 Feuerschlaeuche.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888803983A GB8803983D0 (en) 1988-02-20 1988-02-20 Improvements relating to fire hoses
GB8803983 1988-02-20

Publications (3)

Publication Number Publication Date
EP0330370A2 true EP0330370A2 (de) 1989-08-30
EP0330370A3 EP0330370A3 (en) 1990-04-11
EP0330370B1 EP0330370B1 (de) 1992-01-22

Family

ID=10632071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89301457A Expired - Lifetime EP0330370B1 (de) 1988-02-20 1989-02-15 Feuerschläuche

Country Status (6)

Country Link
EP (1) EP0330370B1 (de)
AT (1) ATE71848T1 (de)
DE (1) DE68900731D1 (de)
ES (1) ES2029115T3 (de)
GB (1) GB8803983D0 (de)
GR (1) GR3003862T3 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB761255A (en) * 1953-12-15 1956-11-14 Samuel Jones & Co Engineering Fire extinguishing apparatus
GB801566A (en) * 1955-11-04 1958-09-17 Safety Automatic Fire Escapes Improvements in or relating to suspension devices for nozzles of water hoses
GB1163450A (en) * 1967-01-18 1969-09-04 Samuel Jones & Co Engineering Improvements in Fire Extinguishing Apparatus

Also Published As

Publication number Publication date
GB8803983D0 (en) 1988-03-23
DE68900731D1 (de) 1992-03-05
ATE71848T1 (de) 1992-02-15
ES2029115T3 (es) 1992-07-16
EP0330370A3 (en) 1990-04-11
GR3003862T3 (de) 1993-03-16
EP0330370B1 (de) 1992-01-22

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