baber/WOPTO huggingface dataset:
Patent CH-654051-A5 (CH)
Title: Water-level overflow in a shaft of a spring
Inventor: BELZ HANS-RUDOLF
IPC: E03B3/38
Filed: 1981-12-11
Abstract: In order to maintain a maximum water level (7) in a shaft (1), use is made of an overflow pipe (8) which is connected to an emptying line (9) which leads into the open. The upper free end of the overflow pipe (8) is provided with a device which is intended to prevent the penetration of small animals, harmful gases and unpleasant odours into the shaft and into the water located in the shaft. This device comprises, for example, a trough (11), enclosing the mouth of the overflow pipe (8), and a bell (12) which dips into the trough (11) via the overflow pipe (8). This bell siphon may be provided with a handle (13). The water, which flows in through a supply line (5) and flows out through a discharge line (6), thus remains clean. At ground level (3) the shaft (1) is closed by means of a well cover (2) which may be provided with a lock. <IMAGE>
Patent BE-1004994-A5 (BE)
Title: Trousse de diagnostic pour diagnostiquer et distinguer une douleur thoracique lors de sa premiere apparition.
Inventor: JACKOWSKI GEORGE
IPC: G01N33/68
Filed: 1991-08-01
Granted: 1993-03-16
Abstract: Trousse d'essai de diagnostic permettant d'établir si une doubleur thoracique chez un patient est d'origine cardiaque et permettant de différencier une angine instable d'un infarctus du myocarde à la première apparition d'une douleur thoracique, cette trousse d'essai comprenant un récipient pour recevoir et retenir un échantillon de sang ou de sérum du patient et au moins trois anticorps monocionaux ou polyclonaux en suspension sur un support, chaque anticorps étant complémentaire d'une protéine différente libérée par le muscle cardiaque au cours des premiers stades d'un infarctus du myocarde, ainsi que des réactifs correspondants qui sont indépendamment sensibles à chaque anticorps réagissant avec la protéine complémentaire.
Patent BE-1006661-A5 (BE)
Inventor: VAN HEERTUM MARTINUS GIJSBERTU
IPC: B60P3/40
Filed: 1992-01-30
Granted: 1994-11-08
Abstract: The invention relates to a vehicle system for transporting containers. It is known to transport two containers simultaneously, wherein one container is carried by a motor vehicle (4) and the other by a trailer (5) coupled to the motor vehicle (4). The length of vehicles as well as the length dimension of a semi-trailer is limited by European Community directives. The invention has for its object to provide a vehicle system which can transport a container with a length of 16 metres. To this end the invention provides a vehicle system comprising a motor vehicle (4), a trailer (5) coupled to the motor vehicle and a long container (2) which is carried by both the motor vehicle and the trailer and which is releasably and rotatably connected to the motor vehicle and to the trailer. <IMAGE>
Patent CH-572868-A5 (CH)
Title: Liq. ion exchange treatment appts - with automatic regeneration when resin contracts on exhaustion
IPC: B01J49/80
Filed: 1974-08-30
Abstract: Appts is partic. intended for the softening and demineralisation of water and for the removal of undesirable colour or odour. It comprises brine reservoirs, a water treatment tank with the inlet for the untreated water and an outlet for the purified water, a treatment cartridge inside the body and a movable support for this cartridge, mounted on springs. The cartridge contains the ion exchange resins which contract as they become exhausted; the cartridge contracts in length and the relaxation in press. on the supporting plate starts the regeneration process. After a rinse, the resin again comes into operation and the flow of water to be treated is resumed. The regeneration is started simply by liq. press. and does not depend upon electrical or mechanical means.
Patent CH-616558-A5 (CH)
Title: Apparatus for grating cheese
Inventor: MERK THEO
IPC: A47J43/25
Filed: 1977-10-24
Abstract: The apparatus comprises a grater (12) rotating around a vertical axle, an ejection plate (2) equipped with radial ribs (17, 18) and projections (20), arranged under the grater and rotating with the grater and the driving motor (M), the assembly being mounted in an enclosed casing (4), this casing having a side opening (5) at the level of the ejection plate (2) for the discharge of the grated cheese. The grater is mounted on a support (1) which comprises arms (9), of which the side facing forward relative to the direction of rotation (F) has a face (16) which is inclined backwards from the top to the bottom, the direction of each arm forming an angle of about 30 DEG with the radius passing through the origin of the arm on the support hub. The side of the arm (9) facing backwards has an inclined face (16) approximately parallel to the front face (16) and its rear edge (14) is approximately tangent to the support hub. <IMAGE>
Patent CH-574909-A5 (CH)
Title: 5-halo-4-aminosalicylic acid derivs - fromn-halo-acidimes as intermediates for corresponding dialkylaminoalkylamides
IPC: C07C233/12
Filed: 1971-10-22
Abstract: Prepn. of 5-halo-4-amino-salicylic acid derivs. (A) of the formula (I): (where A = C1-4 alkyl or alkenyl and X = halogen) from the unhalogenated cpd. and an N-halo-acidamide or -imide; (b) of analgesic, anticonvulsant, anaesthetic and antiemetic derivs (II): or acid addn. salts (where R2 = C2-4 alkylene and R3,R4 = alkyl) from haloformic esters and cpd. (I) via the (not isolated) alkylcarbonic acid anhydride plus a dialkylaminoalkylamine, or by alternative routes, all from (I) as starting material. The halogenation (A) is selective in 5-posn. giving high yields of pure (I).
Patent CH-563987-A5 (CH)
Title: Alpha-(aminophenyl)-aliphatic carboxylic acids - anti-inflammatories
IPC: C07C229/28
Filed: 1969-02-17
Abstract: (A) Cpds. of general formula (I) R1=H or (1-7C) alkyl R2=H or an aliphatic or cycloaliphatic residue, e.g. (1-7C) alkyl, (2-7C) alkenyl, (3-7C) cycloalkyl, (3-7C) cycloalkenyl, (3-7C) cycloalkyl (1-4C) alkyl, or (3-7C) cycloalkenyl (1-4C) alkyl Ph1=phenylene opt. subst. e.g. by 1 or 2 alkyl, OH, ester, ether, SH, thioether, hal, CF3, NO2, NH2, Nalkyl2, NHacyl, CO2H, CONH2, CN, CO2alkyl, SO3H, SO2 alkyl, SO2NH2, and/or SO2N alkyl2 residues. and A=alkylene, alkenylene, aza alkylene, oxa alkylene or thia-alkylene residues, with at least 2C atoms separating the heteroatoms. (B) Salts of (I). (C) Functional derivs. of I, e.g. esters, amides, thioamides, nitriles, N-oxides. Anti-inflammatories.
Patent CH-603122-A5 (CH)
Title: Foamed polyurethane mattress
Inventor: SCHROEDER GEORGES
IPC: A47C23/06
Filed: 1975-11-20
Abstract: Foamed polyurethane mattress resting on a batten support has at least the central transverse portion of the mattress provided at locations coinciding with the battens with inserts of square cross-section and made of foamed latex, pref. high quality foamed polyurethane and reinforced with leaf spring inserts.Inserts have a greater carrying strength whereby the sagging characteristics of used mattresses are avoided.  Pref. the inserts are not connected along their faces opposite adjacent mattress material, the inserts being bonded solely to the overlying or underlying foamed layers.
Patent CH-695214-A5 (CH)
Title: A stable trailer for fixing and transporting an advertising canvas
Inventor: SAGL ENRICO CHIESA FEPCH
IPC: G09F21/04
Filed: 2005-02-21
Abstract: A trailer has a frame (1) edged with a shaft (1a) mounted on wheels (2). The upper section of the frame has a support floor (3) comprising a heavy material (3a). A rectangular structure (4) extends vertically from the center of the floor and the surface panels or advertising frames are affixed to it. A lamp (5) lights the panels and regulatable stablilizers (6) modify the height and level of the trailer.
Patent FR-2071215-A5 (FR)
Title: Preserving non-denatured meta for animal - food
IPC: A23K3/00
Filed: 1969-12-22
Granted: 1971-09-17
Abstract: An animal foodstuff containing meat, with water content of 10-50% (pref. 15-35%) is preserved by saturating the meat component in the non-denatured state with a concentrated solution of a sugar at 42 degrees C, followed by heating at >42 degrees C (pref. 70-110 degrees C) to coagulate the meat protein at least on the outside of the meat. The sugar can penetrate and saturate the meat much better when it is non-denatured.
Patent FR-2086856-A5 (FR)
Title: Aluminosilicate silica hydrocarbon convers- - ion catalyst
IPC: B01J29/06
Filed: 1970-04-10
Granted: 1971-12-31
Abstract: Cryst. aluminosilicate zeolite catalyst embedded in siliceous gel matrix is prep. by mixing alkali metal-contg. zeolite with siliceous hydrogel, rapidly drying, reslurrying in water, filtering/washing, then (improvement) treating with dil. NH4+ salt soln. (A) to pH 4.5-6 followed by dil. NH4+ salt soln. (B) contg. volatile anions at higher pH, and finally drying. Process reduces usual filtration and washing steps. (A) is pref. (NH4)2SO4, and (B) is either NH4CO3 its mixture with (NH4)2SO4 (both of pH 6.5-9) or NH4OH (of pH >9). Siliceous gel is pref. SiO2-Al2O3.
Patent FR-2066674-A5 (FR)
Title: Paper contg some unbeaten fibres
IPC: D21H11/18
Filed: 1970-10-28
Granted: 1971-08-06
Abstract: Paper is made from a mixture of (1) 60 to 95% of highly hydrated and gelatinised cellulose fibres and (2) 3 to 40% of practically unhydrated fibres. (2) is made from wood pulp and contains 92% alpha-cellulose, the rest being hemicelluloses, and has a Schopper.-Rieglier index 340 cm3, pref. 180 to 280 cm3. (2) consists of at least 92% alpha-cellulose, and includes fibres of cotton, linen, hemp, rayon or wood pulp. The mixture may be made by heating a mixture of wood pulp with slow hydrating fibres, or by beating the wood pulp and then mixing with unbeaten fibres. The paper is then made on a standard paper machine.
Patent FR-2073962-A5 (FR)
Title: Epoxy resin powder compsn for matt coatings - on metal parts
IPC: B05D5/02
Filed: 1970-12-17
Granted: 1971-10-01
Abstract: The compns. consist of a mixture of particles of two types (1) epoxy resin particles with the usual hardener situated substantially on the surface and (2) epoxy resin particles of normal type with the hardener dispersed through the material. Preferred ratios of the two types are from 30:70 to 80:20. depending on the strength of the matt effect required. The powders are suitable for matt coating of metal articles, esp. by electrostatic deposition, followed by heating to sinter the deposit into a homogeneous coat. Addition of matting additives is avoided, and the coatings have the same excellent chemical resistance and durability as glossy epoxide coatings.
Patent FR-2099041-A5 (FR)
Title: Biocidal latex and oil paints and coating - materials
Inventor: SEINER J A
IPC: C09D5/02
Filed: 1970-12-30
Granted: 1972-03-10
Abstract: Biocidal coating mixtures contain poly-mercury aromatic cpds. of general formula: R-(HgX)n as active biocides where R = an aromatic residue, and X = an anion, and n >1. Examples of R are phenyl (specifically claimed), naphthyl, anthryl, heterocyclic cpds. e.g. pyridine which may carry substituents e.g. Cl, alkyl, HO, NH2 etc. Suitable anions X are acetate (specifically claimed, propionate, lactate, oleate, borate , carbonate, sulphate, succinate etc. These biocidal cpds. are more active than the usual mono mercurated derivs. in which they were formerly regarded as undesirable impurities. In addn to showing higher biocidal activity these poly-Hg cpds. show a greater resistance to weathering and efflorescence and much less development of darkening and of sulphide flecks on exposure to H2S.
Patent FR-2120401-A5 (FR)
Title: Pedestal bearing - for high speed vertical shaft carrying an element esp isotope separa tor centrifuge
IPC: F16C17/08
Filed: 1970-12-31
Granted: 1972-08-18
Abstract: The rotating portion is a hemispherical spigot, supporting the shaft carrying the centrifuge drum, and the fixed race is a matching hemispherical recess at the top of a resilient rod mounting with vibratio dampers and through which are channels for circulating a viscous coolant and lubricant to the mating surfaces at sufficient pressure to form a continuous film. The lubricant has a low vapour pressure and its viscosity falls sharply with rising temp. Very long maintenance free life e.g. several years at several hundred rpm in vacuo or chemically hostsile atmos.
Patent FR-2145795-A5 (FR)
Title: Water treatment system
IPC: G05D21/02
Filed: 1971-07-12
Granted: 1973-02-23
Abstract: Improved water treatment system, e.g. as used in modern heat exchange equipment, for monitoring and controlling pH, total dissolved solids, corrosion rate and conductivity has a new scanner circuit. Various signals are sent from the pH control circuit etc. to the scanner which monitors the signals, for corrective action.
Patent FR-2114650-A5 (FR)
Title: Metal-epoxy resin bonds - strengthened by interface irradiation with gamma rays
IPC: B05D3/06
Filed: 1971-11-12
Granted: 1972-06-30
Abstract: Epoxy resin-metal interface is exposed to 106-109 gamma-ray dosage in order to strengthen resin-metal bond obtd. by hardening resin in contact with metal. Electronic components. Increased resistance to dissociation by forces acting parallel to interface or by pull at right angle, achieved without stresses or deformation of article. Pref. resin is epichlorohydrin bisphenol (type A epoxy resin, e.g. "EPON 828" (RTM) with a diamine hardener. Metals are stainless steel, blank or oxidised Cu, Ag or oxidised Al.
Patent FR-2166576-A5 (FR)
Title: Carbon black prodn - using industrial oxygen or oxygen -enriched air
IPC: C09C1/00
Filed: 1971-12-30
Granted: 1973-08-17
Abstract: Carbon black is mfd. from a hydrocarbon (mist.) by (a) forming a stream of a mixt. of combustible gas and a gas supporting combustion, and causing this to surround a central stream of the hydrocarbon (mixt.) to be cracked and partially burnt; (b) directing an annular stream of a gas richer in oxygen than air between the central stream and the combustible stream, and reacting the aggregate of these streams; and (c) rapidly cooling the mixt. coming from the reaction and sepg. the contained solid particles.
Patent FR-2232201-A5 (FR)
Title: Mounting system for free ends of safety belts - buckle end is inserted in flat housing hanging from wall
IPC: B60R22/02
Filed: 1973-05-30
Granted: 1974-12-27
Abstract: A conventional vehicle safety belt has an upper end attached to a plate bolted to the vehicle body. The housing which receives the buckle on the end of a second length of belt, when the belt is not being worn, is generally in the form of a flattened tube with an extension on an upper end, this extension having an opening to allow it to be mounted on the bolt attaching the first length of belt to the body. This housing may pivot about the bolt and has a window in one face which receives the buckle. The first length of belt passes through the housing and there is a hood covering the bolt and upper end of the housing.
Patent FR-2238368-A5 (FR)
Title: Cable operated bolt lock for safe door - nylon cable stretches when heated or is cut when lock is picked
IPC: E05B65/00
Filed: 1973-07-17
Granted: 1975-02-14
Abstract: The bolt engages in the frame of the safe when locked. A shaft controls the movement of the bolt. Above and behind the door bolt is a locking bolt (19) which slides in a sleeve (17). On the top of the bolt (19) is a plate (21) to which is attached a spring (22). The other end of the spring is attached to the sleeve. Also attached to the plate is a nylon thread (24) which passes into the locking mechanism. When heat is applied the nylon stretches causing the locking bolt to engage. When an attempt is made to pick the lock the nylon is cut, thus locking the bolt.
Patent FR-2239906-A5 (FR)
Title: Fixing device for retaining wall tie rod - washer plates pivot about interengaging rods on their surfaces
IPC: F16B43/02
Filed: 1973-08-03
Granted: 1975-02-28
Abstract: The wall or piling surface (1) has a hole (4) for the tie rod (2). A plate (3) with a hole (5) is fitted over the end of the tie rod and has short pieces of round rod (10) welded to it on either side of the hole (5). A washer (6) with a hole (7) has similar pieces of rod (9) welded to its surface so that they fit between the pieces (10), thus allowing the tie rod to pivot on the pieces of rod (9). A second washer with its upper surface oblique to its lower surface allows the tie rod to align itself in the transverse plane.
Patent CH-693971-A5 (CH)
Title: Anti-shock transmission device is for driving generatrix by oscillating mass, particularly for a watch
Inventor: REBEAUD JEAN-PHILIPPE
IPC: G04C10/00
Filed: 2000-12-07
Abstract: The anti-shock transmission device is for driving a generatrix by an oscillating mass, particularly for a watch. It is interposed between a rotary oscillating mass and a micro-generatrix which is electric in order to drive the rotor of the generatrix from the oscillating mass by multiplying the speed of rotation. Its intermediary mobile part incorporates a cylinder, the central shaft of which is coupled to the drum of the cylinder by a spiral spring.  The internal end of the spring has a bent part, which engages by elasticity in any one of several indentations of the shaft and can disengage by sliding on an inclined flank in a given direction of rotation.
Patent DD-144579-A5 (DD)
Inventor: THEURER JOSEF
IPC: E01B29/06
Filed: 1979-06-26
Abstract: An apparatus for operating transport vehicles movable along a track carried by a train of railroad cars to and from a transfer station for loading the vehicles comprises a signalling arrangement including an emitter of perceptible stop-and go-signals for a respective transport vehicle. The signal emitter is positioned at the transfer station within the range of perception of the transport vehicle.
Patent DD-147536-A5 (DD)
Inventor: MICHELET DANIEL
IPC: C07C41/16
Filed: 1979-11-30
Abstract: Unsaturated ethers of diphenols are prepared from alkenyl halides and diphenols as reagents and by carrying out the reaction in two zones at different temperatures. Intermediates for perfumes, aromas and insecticides are so prepared.
Patent DD-152819-A5 (DD)
Title: Verfahren und vorrichtung zum kontinuierlichen behandeln von textilen und aehnlichen warenbahnen
Inventor: DRIESSEN MANFRED
IPC: B05C1/08
Filed: 1980-08-19
Abstract: Verfahren und Vorrichtung zum kontinuierlichen Behandeln von textilen und aehnlichen Warenbahnen mit einem auf die Warenbahn aufzubringenden Behandlungsmedium, insbesondere zum Faerben, bei welchem auf die Warenbahn ein das Behandlungsmedium enthaltender Schaum aufgetragen und anschliessend in die Warenbahn eingearbeitet wird. Die Erfindung hat das Ziel, geringe Fluessigkeitsmengen mit einfachen Mitteln auf eine Warenbahn bei guter Qualitaet aufzubringen, waehrend ihr die Aufgabe zugrunde liegt, einen pro Flaecheneinheit moeglichst gleichmaessigen Auftrag des in dem Schaum enthaltenen Behandlungsmediums zu erreichen.Der Schaum wird auf den Umfang einer umlaufenden Trommel aufgetragen, auf eine bestimmte Schichthoehe abgestrichen, worauf die Warenbahn frei auf die Trommel, d.h. die Schaumschicht zulaeuft und die Trommel um einen bestimmten Winkel frei umschlingt. Bei der Vorrichtung ist eine gegen die Trommel anstellbare Streichrakel mit parallelem Abstand von der Trommeloberflaeche vorgesehen. Die Warenbahn laeuft ueber eine Fuehrungsrolle an einer in Umlaufrichtung hinter der Streichrakel gelegenen Stelle auf die Trommel auf.
Patent DD-155049-A5 (DD)
Title: Hauptbrueckentraeger,insbesondere kranbrueckentraeger
IPC: B66C6/00
Filed: 1980-12-05
Abstract: Die Erfindung betrifft einen Hauptbrueckentraeger, insbesondere Kranbrueckentraeger, mit einem geschlossenen, unten breiter werdenden trapezfoermigen Kastenquerschnitt, auf dem eine Fahrschiene mittig angeordnet ist. Es ist Ziel der Erfindung, die Konstruktion wesentlich zu vereinfachen, das Gewicht zu verringern und eine einfache Anarbeitung zu erreichen. Der Erfindung liegt die Aufgabe zugrunde, einen Kranbrueckentraeger zu schaffen, bei dem die gegebene guenstige Krafteinleitung von der Fahrschiene her fuer eine verbesserte Stabilitaet gegen Seitenkraefte ausgenutzt wird. Geloest wird die Aufgabe dadurch, dass der Hauptbrueckentraeger im Querschnitt zwei uebereinander angeordnete trapezfoermige Zelle wesentlich niedriger als die untere trapezfoermige Zelle ist und in der Mitte der oberen trapezfoermigen Zelle ein I-Profil angeordnet ist, das mit seinem Obergurt den Trapezquerschnitt oben begrenzt. Die erfindungsgemaesse Loesung wird zur Herstellung von Hauptbrueckentraegern eingesetzt.
Patent DD-157104-A5 (DD)
Title: Siliconemasse
Inventor: HAMADA MITSUO
IPC: C08K5/5419
Filed: 1981-01-21
Abstract: Die Erfindung betrifft eine Siliconmasse mit besonders guter Klebrigkeit. Sie besteht aus 100 Gewichtsteilen einer Organosiliciumverbindung der mittleren Einheitsformel I, 5 bis 500 Gewichtsteilen eines Organotitanats und 5 bis 1000 Gewichtsteilen einer Organowasserstoffsiliciumverbindung der mittleren Einheitsformel II. Hierin bedeutet R hoch 1 und R hoch 4 einen einwertigen Kohlenwasserstoff- und/oder Halogenkohlenwasserstoffrest, R hoch 2 Epoxy, Methacryloxy, Amino und/oder Mercapto, R hoch 3 Alkyl, a = 0 bis 3, b = 0 bis 3. Ferner gelten 0<c<gleich4,0<a+b+c<gleich4,0<x<gleich3,Oy<gleich2und0<x+y<gleich4. Die Organowasserstoffsiliciumverbindung enthaelt wenigstens eine Gruppe SiH pro Molekuel.
Patent DD-158889-A5 (DD)
Title: Vorrichtung zum aufschieben von ventilsaecken auf einen fuellstutzen
Inventor: BERTHELSEN ERNST R
IPC: B65B43/26
Filed: 1981-05-04
Abstract: Ziel ist es, eine Vorrichtung zum Aufschieben von Saecken auf einen Fuellstutzen, wo die mit einem Ventil versehenen Saecke von einem Stapel zu einer Haltevorrichtung gefuehrt werden mit Hilfe einer Ventiloeffnungsvorrichtung, die bei Einfuehrung in das Ventil dieses oeffnet, worauf die Haltevorrichtung um das geoeffnete Ventil greift und dieses auf den Fuellstutzen aufschiebt, bereitzustellen, die eine automatische und sichere Arbeitsweise mit einfachen Mitteln ermoeglicht. Aufgabe dabei ist es, durch entsprechende Ausgestaltung zu erreichen, dass die Vorrichtung, ohne Anwendung von Kraeften mit nennenswerter Komponente in Laengsrichtung des Ventils, in das Ventil eindringen und es aufspreizen und damit eventuelle Verklebungen loesen kann. Dazu ist die Ventiloeffnungsvorrichtung zum Oeffnen des Ventils und zum Transport des Sackes zur Haltevorrichtung aus mehreren Teilen zusammengesetzt. Diese koennen derart geschlossen und geoeffnet werden, dass sie im geschlossenen Zustand die Form eines Keiles mit ovalem Querschnitt und im offenen Zustand die Form eines Zylinders mit dem gleichen Querschnitt wie ein vollkommen aufgespreiztes Ventil des Sackes aufweisen.
Patent DD-202111-A5 (DD)
Title: Verfahren zur korrosionsverhuetung an dachentwaesserungssystemen
Inventor: GROTH VOLKER
IPC: B05D7/22
Filed: 1982-04-27
Abstract: Die Erfindung betrifft ein Verfahren zur Korrosionsverhuetung an Dachentwaesserungssystemen, wie Regenfallrohren, Rohrbogen oder dergleichen. Sie wird zur Korrosionsverhuetung der Innenseite von aus Blechen von Kupfer, Aluminium, verzinktem Stahl, Zink, insbesondere aus mit Kupfer und Titan, legiertem, bandgewalztem, dauerstandfestem sowie um 180 Grad C bruchfrei faltbarem Zink, geformten u. maschinell innengeloeteten Regenfallrohren, Rohrbogen o. dgl. v. Dachentwaesserungssystemen in Verbindg. mit bituminoesen Baustoffen durch eine Schutzschicht angewendet. Ziel ist es, d. Kosten f. aufwendige Reparaturen und Pflegearbeiten an Dachentwaesserungssystemen einzusparen und die Lebensdauer der Dachentwaesserungssysteme wesentlich zu erhoehen. Die Aufgabe besteht darin, ein Verfahren zu schaffen, das fuer Regenfallrohre, Rohrbogen oder dergleichen eine dauerhafte Schutzschicht der Innenseite ermoeglicht. Als Loesung wird vorgeschlagen, dass d. Regenfallrohre, Rohrbogen oder dergleichen unmittelbar nach dem Loeten in der Loetwaerme mit einem saeurefesten Schutzlack beschichtet werden.