DE3212289A1 - FILTER TO CLEAN THE AIR FOR OUTSIDE ROOMS - Google Patents

FILTER TO CLEAN THE AIR FOR OUTSIDE ROOMS

Info

Publication number
DE3212289A1
DE3212289A1 DE19823212289 DE3212289A DE3212289A1 DE 3212289 A1 DE3212289 A1 DE 3212289A1 DE 19823212289 DE19823212289 DE 19823212289 DE 3212289 A DE3212289 A DE 3212289A DE 3212289 A1 DE3212289 A1 DE 3212289A1
Authority
DE
Germany
Prior art keywords
filter
air
particulate
gas
closed
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.)
Ceased
Application number
DE19823212289
Other languages
German (de)
Inventor
Wolfgang 2407 Sereetz Eckstein
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Priority to DE19823212289 priority Critical patent/DE3212289A1/en
Priority to GB08307293A priority patent/GB2117665B/en
Priority to FR8305172A priority patent/FR2524337B1/en
Priority to IT09384/83A priority patent/IT1198546B/en
Publication of DE3212289A1 publication Critical patent/DE3212289A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/009—Identification of filter type or position thereof, e.g. by transponders or bar codes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H3/0658—Filter elements specially adapted for their arrangement in vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/02—Non-permanent measures for connecting different parts of the filter
    • B01D2265/024—Mounting aids
    • B01D2265/026—Mounting aids with means for avoiding false mounting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H3/0608—Filter arrangements in the air stream
    • B60H2003/065—Details for holding filter elements in position
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)

Description

Drägerwerk Aktiengesellschaft Moislinger Allee 53-55, 2400 LübeckDrägerwerk Aktiengesellschaft Moislinger Allee 53-55, 2400 Lübeck

Filter zum Reinigen der Luft für nach außen abgeschlossene RäumeFilters for cleaning the air in rooms that are closed off from the outside

Die Erfindung betrifft ein Filter zum Reinigen der Luft für nach außen abgeschlossene Räume, entsprechend dem Oberbegriff des Patentanspruchs 1.The invention relates to a filter for cleaning the air for rooms closed off from the outside, accordingly the preamble of claim 1.

Belüftungsvorrichtungen für Personenfahrzeuge, insbesondere Kampfwagen, Sanitätswagen, Kommandowagen od.dgl. enthalten zusammen mit einer Luftfördervorrichtung eine Luftreinigungsvorrichtung. Die letztere ist im wesentlichen ein Filter,das in bekannter WeiseVentilation devices for passenger vehicles, in particular Combat vehicles, ambulance vehicles, command vehicles or the like. included together with an air conveyor an air purifier. The latter is essentially a filter that works in a known manner

Iu ein Schwebstoff- mit einem nachgeschalteten Gasfilter enthalt, in dem Schwcbstoffilter werden die in der Luft i-nthal tenen Staube herunter bis zu feinsten Schwebstoffen und in dem Gasfilter dann die schädlichen Gase zurückgehalten. Ein wesentliches Problem ist der Raumbedarf für die im Fahrzeuginnern anzuordnenden Filter und der Austausch der verbrauchten Elemente, wie Schwebstoff- und Gasfilter.Iu a suspended matter filter with a downstream gas filter contains, in the particulate filter are those in the Air contains dust down to the finest suspended matter and then the harmful ones in the gas filter Gases retained. A major problem is that Space requirements for the filters to be arranged inside the vehicle and the replacement of the used elements, such as particulate and gas filters.

Ein bekanntes Fahrzeugfilter enthält in einem gemeinsamen Gehäuse in jeweils getrennten Räumen Schwebstoff- und Gasfiltereinsätze. Zum Einsetzen und Austauschen der getrennten Einsätze sind in dem GehäuseA known vehicle filter contains in a common Housing in separate rooms for particulate matter and gas filter inserts. For inserting and replacing of the separate inserts are in the housing

jeweils eine durch eine Verschlußklappe verschließbare EinschuböFfnung sowie entsprechende Filterhalterungen notwendig. Die F'ilterhalterungen müssen auch bei der notwendig rauhen Fahrweise der Fahrzeuge die Filtereinsätze sicher verspannen. Diese bekannte Ausbildung der Filter verlangt immer noch einen umfangreichen Aufbau mit dem entsprechenden Platzbedarf. (DE-PS 12 81 267) An insertion opening that can be closed by a flap and corresponding filter holders are required. The filter holders must also securely clamp the filter inserts in the rough driving style of the vehicles. This known design of the filter still requires an extensive structure with the corresponding space requirements. (DE-PS 12 81 267)

Aufgabe der Erfindung ist ein Filter zum Reinigen der Luft, insbesondere für Personenfahrzeuge, wie Kampfwagen, Sanitätswagen, Kommandowagen od.dgl. mit der Möglichkeit des einfachen Auswechselns der Schwebstoff- und Gasfilter bei kleinstem Raumbedarf. The object of the invention is a filter for cleaning the air, in particular for passenger vehicles, such as Combat vehicles, ambulance vehicles, command vehicles or the like. with the possibility of simply changing the HEPA and gas filters with the smallest space requirement.

Die Lösung der Aufgabe erfolgt gemäß dem Kennzeichen des Patentanspruchs 1. Eine zweckmäßige Ausgestaltung der Erfindung enthält der Anspruch 2.The object is achieved according to the characterizing part of claim 1. An expedient embodiment of the invention is contained in claim 2.

Die Bereitstellung der beiden Filterelemente gleicher Abmessungen einmal als Schwebstoffilter und zum anderen als kombiniertes Schwebstoff-Gasfilter erlaubt mit dem eingesetzten Schwebstoffilter die Benutzung der Fahrzeugbelüftungsanlage unter normalen Umweltbedingungen, wie sie z.B. im Frieden vorliegen. Es wird dann die Frischluft von dem in der Zuluft enthaltenen Staub und Schwebstoff gereinigt, die für die Besatzung und die Geräte schädlich oder auf jeden Fall aber lästig wären.The provision of the two filter elements of the same dimensions once as a particulate filter and for others as a combined suspended matter gas filter allowed with the suspended particle filter used the vehicle ventilation system under normal Environmental conditions, such as those that exist in peacetime. The fresh air is then cleaned of the dust and suspended matter contained in the supply air, which is necessary for the crew and the equipment would be harmful or in any case annoying.

Das Schwebstoff-Gasfilter wird dann erst im notwendigen Bedarfsfall gegen das Schwebstoffilter ausgetauscht. Die gleichen Abmessungen ermöglichen dies selbstverständlich.
5The suspended matter gas filter is then only exchanged for the suspended matter filter when necessary. The same dimensions make this possible, of course.
5

Die besondere Gestaltung des Schwebstoffilterrahmens sichert zusammen mit der Schalteranordnung im Filtergehäuse den wirklichen Austausch der Filterelemente im Bedarfsfalle.The special design of the HEPA filter frame together with the switch arrangement in the filter housing, ensures that the filter elements are actually replaced if necessary.

Die mit der Erfindung gefundene Lösung erlaubt ein wesentlich kleineres Filtergehäuse. Es besitzt nur eine Einschuböffnung mit einer Verschlußklappe und eine Filterhaiterung.The solution found with the invention allows a much smaller filter housing. It just owns an insertion opening with a closure flap and a filter holder.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden beschrieben. Es zeigenAn embodiment of the invention is shown in the drawing and is described below. Show it

Fig. 1 das Schwebstoffilter im Querschnitt,1 shows the particulate filter in cross section,

das Schwebstoffilter in der Draufsicht, das Schwebstoffilter-Gasfilter, einen Ausschnitt aus dem Filtergehäuse, das eingebaute Schwebstoffilter inthe particulate filter in plan view, the particulate filter gas filter, a section of the filter housing, the built-in HEPA filter in

5 der Draufsicht.5 the top view.

Das Schwebstofffilter 1 der Fig. 1 und das kombinierte Schwebstoff-Gasfilter 2 der Fig. 3 besitzen dieThe particulate filter 1 of FIG. 1 and the combined HEPA gas filter 2 of Fig. 3 have the

— 5 —- 5 -

Fig.Fig. 11 Fig.Fig. 22 Fig.Fig. 33 Fig.Fig. 44th Fig.Fig. 55

gleichen Abmessungen sowohl in der Länge L und Breite B wie auch in der Höhe H.same dimensions in length L and width B as well as in height H.

Das Schwebstoffilter 1 enthält in einem Schwebstofffilterrahmen 3 in bekannter Weise ein Schwebstoffiltermaterial 4 dicht eingesetzt. Der Schwebstoffilterrahmen 3 besitzt einen Durchbruch 5, der zusammen mit einer Schaltanordnung, ausgebildet It. Fig. 5,als ein federnder Tasthebel 6 zusammen mit nicht dargestelltem Schalter und Anzeigegerät das im Filtergehäuse 10 für den augenblicklichen Betrieb eingebaute Schwebstofffilter für die Besatzung erkenntlich macht. Der Durchbruch 5 erlaubt einen Schaltweg s des Tasthebels 6 und löst damit den Schaltvorgang aus.The HEPA filter 1 is contained in a HEPA filter frame 3 a HEPA filter material 4 inserted tightly in a known manner. The particulate filter frame 3 has an opening 5, which together with a switching arrangement, designed It. Fig. 5, as a resilient touch lever 6 together with not shown switch and display device in the filter housing 10 for makes the current operation of the built-in particulate filter recognizable for the crew. The breakthrough 5 allows a switching path s of the feeler lever 6 and thus triggers the switching process.

Das Schwebstoff-Gasfilter 2 enthält in einem Rahmen 7 in bekannter Weise ein Schwebstoffiltermaterial 8 und nachgeschaltetes Gasfiltermaterial 9.The suspended matter gas filter 2 is contained in a frame 7 in a known manner a HEPA filter material 8 and Downstream gas filter material 9.

Das Schwebstoffilter 1 oder das Schwebstoff-Gasfilter werden It. Fig. 4 und 5 in das Filtergehäuse 10 eingesetzt und durch mechanische Halterungen 11 dicht gegen einen Rahmen 12 gespannt. Eine Einschuböffnung 13 ist durch eine Verschlußklappe 14 gasdicht verschlossen.The particulate filter 1 or the particulate gas filter 4 and 5 are inserted into the filter housing 10 and sealed against it by mechanical brackets 11 a frame 12 stretched. An insertion opening 13 is closed gas-tight by a closure flap 14.

Die zu reinigende Luft durchströmt die Filterelemente in Pfeilrichtung 15.The air to be cleaned flows through the filter elements in the direction of arrow 15.

Claims (2)

PatentansprücheClaims 1. Filter zum Reinigen der Luft für nach außen abgeschlossene Räume, insbesondere in Fahrzeugen, die im Filtergehäuse durch einen Deckel verschließbare Öffnungen zum Herausnehmen der durch Halte-1. Filters to purify the air for rooms that are closed to the outside, especially in vehicles that Openings in the filter housing that can be closed by a cover to remove the l) rungen eingespannten Schwebstoff- und Gasfilter besitzen, dadurch gekennzeichnet, daß ein Schwebstoffilter (1) oder ein kombiniertes Schwebstoff-Gasfilter (2) gleicher Abmessungen wahlweise durch die gleiche Sinschuböffnung (13) eingesetzt und gleiche Halterungen (11) eingespannt ist. l ) stanchions have suspended particulate and gas filters, characterized in that a suspended particulate filter (1) or a combined suspended particulate gas filter (2) of the same dimensions is optionally inserted through the same slide-in opening (13) and the same brackets (11) are clamped. 2. Filter zum Reinigen der Luft für nach außen abgeschlossene Räume nach Anspruch 1, dadurch gekennzeichnet, daß das Filtergehäuse (10) dem eingebauten Schwebstoffilter (1) bzw. Schwebstoff-Gasfilter (2) seitlich gegenüber einen mit einem Schalter und einem Anzeigegerät verbundenen federnden Tasthebel (6) besitzt, der bei eingespanntem Schwobstoffilter (1) und nach dem Zurücklegen eines Schaltweges (s) in einen in dessen ochweDHtoffilter rahmen (3) vorhandenen Durchbruch (5) eintritt.2. Filter for cleaning the air for rooms closed to the outside according to claim 1, characterized in that that the filter housing (10) corresponds to the built-in particulate filter (1) or particulate gas filter (2) laterally opposite a resilient one connected to a switch and a display device The feeler lever (6) is used when the carbon filter (1) is clamped and after it has been put back a switching path (s) in an opening in its ochweDHtoffilter frame (3) (5) occurs.
DE19823212289 1982-04-02 1982-04-02 FILTER TO CLEAN THE AIR FOR OUTSIDE ROOMS Ceased DE3212289A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19823212289 DE3212289A1 (en) 1982-04-02 1982-04-02 FILTER TO CLEAN THE AIR FOR OUTSIDE ROOMS
GB08307293A GB2117665B (en) 1982-04-02 1983-03-16 Air filter system
FR8305172A FR2524337B1 (en) 1982-04-02 1983-03-24 FILTER BLOCK FOR AIR CLEANING IN OUTSIDE CLOSED ENCLOSURES
IT09384/83A IT1198546B (en) 1982-04-02 1983-04-01 AIR PURIFICATION FILTER FOR ENVIRONMENTS CLOSED TO THE OUTSIDE, IN PARTICULAR FOR VEHICLES AND SIMILAR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823212289 DE3212289A1 (en) 1982-04-02 1982-04-02 FILTER TO CLEAN THE AIR FOR OUTSIDE ROOMS

Publications (1)

Publication Number Publication Date
DE3212289A1 true DE3212289A1 (en) 1983-10-13

Family

ID=6160065

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823212289 Ceased DE3212289A1 (en) 1982-04-02 1982-04-02 FILTER TO CLEAN THE AIR FOR OUTSIDE ROOMS

Country Status (4)

Country Link
DE (1) DE3212289A1 (en)
FR (1) FR2524337B1 (en)
GB (1) GB2117665B (en)
IT (1) IT1198546B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29504132U1 (en) * 1995-03-09 1996-07-25 Liebherr-Werk Bischofshofen Ges.M.B.H., Bischofshofen air conditioner
DE19505723A1 (en) * 1995-02-20 1996-08-22 Daimler Benz Ag Activated carbon-containing air filter for automobile use

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716243A1 (en) * 1987-05-15 1988-11-24 Draegerwerk Ag FILTER ARRANGEMENT FOR COMPLIANCE WITH VENTILATED VEHICLE INTERIORS
DE4424793C1 (en) * 1994-07-14 1995-08-24 Daimler Benz Ag Dust filter with frame
DE4424805C1 (en) * 1994-07-14 1995-08-24 Daimler Benz Ag Two-part automotive dust filter frame
EP0707989A1 (en) * 1994-10-14 1996-04-24 HS Technik und Design Technische Entwicklungen GmbH Apparatus for cleaning ambient air

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6944603U (en) * 1969-11-04 1970-03-19 Rheinstahl Hanomag Ag AIR CONDITIONING SYSTEM FOR VEHICLES AND WORK MACHINERY
DE2152051A1 (en) * 1970-11-23 1972-05-25 Krobath Maschf Ferd Air filter
DE2224172A1 (en) * 1972-05-18 1973-12-06 Helmut Beeck GAS ABSORBERS FOR VEHICLE VENTILATION SYSTEMS
DE2459356A1 (en) * 1973-12-17 1975-06-19 Sayer William J DEVICE FOR TREATMENT OF FLUIDS
DE2241647B2 (en) * 1972-08-24 1975-10-09 Lothar Prof. Dr. 6000 Frankfurt Wendt Device for reducing the Co content of the fresh air supplied to the interior of a closed motor vehicle
GB2018979A (en) * 1978-04-18 1979-10-24 Saab Scania Ab Arrangement in a ventilation system for a vehicle
DE2911428A1 (en) * 1979-03-23 1980-10-02 Hoelter Ges Fuer Patenverwertu Filter for air supply to lorry cabs - having set of chemically absorbent layers for different contaminants held apart by felt or other woven or nonwoven material
US4306892A (en) * 1981-02-06 1981-12-22 Tec-Air, Inc. Disposable air freshening packet

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB509179A (en) * 1938-05-02 1939-07-12 Frederick Braby And Company Lt Improvements in air filters for gas proof chambers
GB1169285A (en) * 1967-07-29 1969-11-05 Spirax Sarco Ltd Improvements in or relating to Apparatus for Drying or Filtering Fluids
DE7047672U (en) * 1970-12-24 1974-08-14 Nix H Fresh air filters for the interiors of motor vehicles
DE7638901U1 (en) * 1976-12-11 1977-03-24 Hose, Wilhelm, 3500 Kassel Supply duct for fresh air in motor vehicles
DE2811419A1 (en) * 1978-03-16 1979-09-27 Heinz Hoelter Bonnet mounted fresh air filter for car - is held by magnetic or elastic seals when bonnet is closed down

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6944603U (en) * 1969-11-04 1970-03-19 Rheinstahl Hanomag Ag AIR CONDITIONING SYSTEM FOR VEHICLES AND WORK MACHINERY
DE2152051A1 (en) * 1970-11-23 1972-05-25 Krobath Maschf Ferd Air filter
DE2224172A1 (en) * 1972-05-18 1973-12-06 Helmut Beeck GAS ABSORBERS FOR VEHICLE VENTILATION SYSTEMS
DE2241647B2 (en) * 1972-08-24 1975-10-09 Lothar Prof. Dr. 6000 Frankfurt Wendt Device for reducing the Co content of the fresh air supplied to the interior of a closed motor vehicle
DE2459356A1 (en) * 1973-12-17 1975-06-19 Sayer William J DEVICE FOR TREATMENT OF FLUIDS
GB2018979A (en) * 1978-04-18 1979-10-24 Saab Scania Ab Arrangement in a ventilation system for a vehicle
FR2423360A1 (en) * 1978-04-18 1979-11-16 Saab Scania Ab VENTILATION SYSTEM FOR INTERIORS OF VEHICLES SUCH AS PASSENGER CARS
DE2911428A1 (en) * 1979-03-23 1980-10-02 Hoelter Ges Fuer Patenverwertu Filter for air supply to lorry cabs - having set of chemically absorbent layers for different contaminants held apart by felt or other woven or nonwoven material
US4306892A (en) * 1981-02-06 1981-12-22 Tec-Air, Inc. Disposable air freshening packet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19505723A1 (en) * 1995-02-20 1996-08-22 Daimler Benz Ag Activated carbon-containing air filter for automobile use
DE29504132U1 (en) * 1995-03-09 1996-07-25 Liebherr-Werk Bischofshofen Ges.M.B.H., Bischofshofen air conditioner

Also Published As

Publication number Publication date
IT1198546B (en) 1988-12-21
GB2117665A (en) 1983-10-19
IT8309384A0 (en) 1983-04-01
FR2524337B1 (en) 1988-12-09
GB8307293D0 (en) 1983-04-20
FR2524337A1 (en) 1983-10-07
GB2117665B (en) 1985-08-07

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