baber/WOPTO huggingface dataset:
Patent DE-3123279-A1 (DE)
Title: Method for the early detection of a fire, and fire detector
Inventor: EICKER HARTMUT DR RER NAT
IPC: G08B17/117
Filed: 1981-06-12
Abstract: A fire detector is at least provided with a metal oxide semiconductor whose measuring shunt is affected by gas components produced in the fire. For the purpose of early detection of the fire, prior to an open conflagration breaking out, the temporal change of the electrical resistance of the metal oxide semiconductor is measured continuously and the signal size obtained, which corresponds to the fluctuations of the carbon monoxide concentration, is employed, after comparison with a limit value, to trigger the fire detector.
Patent DE-3134294-A1 (DE)
Title: Self-tensioning tube receiver
Inventor: BEECK HARALD
IPC: B65H75/24
Filed: 1981-08-29
Abstract: The self-tensioning tube receiver has a sliding pipe (7) which is arranged on the shaft (1) fixedly in terms of rotation, but so as to be axially displaceable, and of which the end located on the machine side has two grooves (3, 5) of differing diameter for receiving an expandable clamping ring (2), for example an O-ring. When the tube receiver is in the inoperative position, the clamping ring (2) rests in the groove of smaller diameter; its outside diameter is so much larger than the inside diameter of the winding tube (6) that it is taken up during the pushing on of the winding tube (6) and is rolled over the rising rolling face (4) in the second groove (5) of larger diameter. A first clamping connection is thereby obtained. A second clamping ring (12) rests in a groove (15) of smaller diameter on the circumference of a shaped ring (11) sitting firmly on the shaft (1) and having perforations (14). In the inoperative position, the outside diameter of the clamping ring (12) is smaller than the inside diameter of the winding tube (6). By means of the first clamping connection on the clamping ring (2), when the winding tube (6) is pushed further the sliding pipe (7) is displaced axially counter to spring force (8). Consequently, via the extension (20) of the sliding ring (13), the clamping ring (12) is displaced into the groove (17) of larger diameter in order to make a second clamping connection. <IMAGE>
Patent DE-3134958-A1 (DE)
Title: Security hook, especially for securing carry-straps to retaining eyes on cameras
IPC: A45F5/00
Filed: 1981-09-03
Abstract: A security hook, especially for securing a carry-strap to eyes on cameras, has a body and a suspension member. The suspension member is received in the body in such a manner that it can be displaced out of a closed position, in which it is held on the body in a manner proof against rotation by at least one blocking member (snap connection), into an end position in which the suspension member is mounted in the body in an articulated manner so that it can be pivoted out of the plane of the body into the suspension position. An additional security is guaranteed by a spring element.
Patent DE-3135781-A1 (DE)
Title: Cable plug connector having two selectable cable outlet directions
Inventor: BENKER HORST ING GRAD
IPC: H01R13/506
Filed: 1981-09-10
Abstract: In the case of a cable plug connector having a housing which has a cable entry region and a contact region, two cable outlet directions are selectable. In order to achieve large-scale production (which is as cost-saving as possible) of this cable plug connector and in order to achieve a simple production capability of the desired cable outlet direction at the installation site, the housing consists of two parts which can be separated and joined together in the cable entry region - preferably by hand (manually) - whose separating surfaces run obliquely with respect to the plug longitudinal axis. It is particularly expedient to produce the housing parts from elastic synthetic material (plastic) and to provide a latching holder on their separating surfaces as well as an annular sealing lip on one of the separating surfaces.
Patent DE-3138668-A1 (DE)
Title: Chemical current source
Inventor: POCODENKO VITALIJ D
IPC: H01M10/05
Filed: 1981-09-29
Abstract: The chemical current source comprises a cathode which encloses a working substance dissolved in an electrolyte based on an organic solvent, an anode and a separator which separates the cathode from the anode. According to the invention, the working substance of the cathode is a stable free radical cation of an aromatic amine or a stable free radical cation of a heterocyclic compound or a stable free, electrically neutral radical of an aromatic oxygen-containing compound or a stable free, electrically neutral radical of an aromatic nitrogen-containing compound, while the anode encloses a working substance which is dissolved in the electrolyte based on an organic solvent and which is a stable free radical anion of an aromatic compound. The invention may be used for autonomously supplying electronic devices. The chemical current sources proposed have a high electromotive force and a high number of charge/discharge cycles.
Patent DE-3140979-A1 (DE)
Title: Liquid level sensing device
Inventor: PORTH WOLFGANG DIPL PHYS
IPC: G01F23/36
Filed: 1981-10-15
Abstract: The invention relates to a liquid-level sensing device which can be arranged in a container to establish the level of a liquid in this container. The device has a variable resistance which consists of a resistance track (2), over the longitudinal extent of which a sliding contact (4) can be moved depending upon the liquid level. The resistance track (2) is connected with its one end to positive potential of a direct-current source and the sliding contact (4) to negative potential. In order to guarantee reliable operability with simple and inexpensive means, an electrode connected to positive potential is arranged in the container. <IMAGE>
Patent DE-3143737-A1 (DE)
Title: Safety device for rods in reactors having spherical fuel elements
Inventor: ELTER CLAUS DR-ING
IPC: G21C7/107
Filed: 1981-11-04
Abstract: The inner tube (2) present in a rod (1) is also used as a catching device for a possibly broken off rod tip (15). In the event of breakage, a shoulder (4) of the inner tube (2) rests against an abutment (5) of the outer tube (7). The centre of gravity of the broken off tip (15) of the rod (1) is located in any case below the catching device, as clearly represented in Figure 1. <IMAGE>
Patent DE-3144335-A1 (DE)
Title: Method for producing rotationally symmetrical workpieces to be provided with a wear-resistant layer
Inventor: LEUTGAEB HERMANN
IPC: C23C4/12
Filed: 1981-11-07
Abstract: Method for producing workpieces to be provided with a wear-resistant layer, the previously packaged workpieces being axially scanned by an eddy current fracture test device before coating, the axial position of each contact plane being determined and stored and this data being supplied after coating to at least one processing tool for locating the contact planes. <IMAGE>
Patent DE-3145303-A1 (DE)
Title: Flat hose line
Inventor: BECHER KLAUS ING GRAD
IPC: F16L11/12
Filed: 1981-11-14
Abstract: A flat hose line (10), consisting of an upper web (11) and a lower web (12) which are connected to one another by means of defined outer crosspieces (13) running parallel. A plurality of hollow lines (15, 16, 17), running approximately parallel, can be created for different media to be conveyed by the introduction of defined intermediate crosspieces (14), running approximately parallel. Holes (19) for attachment to suitable bases are provided in the region of the crosspieces (13, 14). One of the hollow lines (17) is provided for electrical cables (18) to be laid in. <IMAGE>
Patent DE-3145343-A1 (DE)
Title: Lifting device for the loading platform of a lorry with circulating lifting chain
Inventor: DUENSCHEDE ERNST
IPC: B60P1/44
Filed: 1981-11-14
Abstract: The lifting device which serves to lift and lower the loading platform of a lorry is equipped with a motor-driven lifting chain which engages with a lifting rod. The lifting chain circulates continuously and the lifting rod is constructed as a separate toothed segment which engages with the lifting chain. The support elements of the device protrude as little as possible beyond the lifting rod and can overcome a maximum lifting height. <IMAGE>
Patent DE-3148721-A1 (DE)
Title: Method and device for lowering the exposure to exhaust gas when motor vehicles and internal combustion engines are operated and used
Inventor: LUDEWIG HEINZ
IPC: F01N3/031
Filed: 1981-12-09
Abstract: As a result of increasing traffic density, traffic jams are occurring increasingly frequently and thus the vehicle occupants' driving competance and health are being put increasingly under strain. In a traffic jam, the engine is often operated at low speeds of revolution and in low load ranges and principally in idling mode. This results in the production and emission of a particularly large amount of carcinogenic hydrocarbons. By installing an interchangeable and regenerable activated carbon filter unit in the ventilation system, the exposure of the vehicle occupants to noxious substances can be considerably reduced. By  installing identical or similar filter units in the region of the exhaust system the amount of noxious substances in the environment as a whole can be advantageously altered.
Patent DE-3149192-A1 (DE)
Title: Method and arrangement for rolling stress-free rolled strip
Inventor: KLOECKNER JUERGEN DR ING
IPC: B21B37/44
Filed: 1981-12-11
Abstract: The invention relates to a method for rolling stress-free rolled strip by zone-wise influencing of the effective dimensions of the circumferential surfaces of the barrel of the work rolls as a function of partial tensile stresses determined after the last stand in zones lying transversely to the rolled strip, and to an arrangement for carrying out the method. The known method, known as thermal camber control, for supplying the circumferential surfaces of the barrels of the work rolls and/or of the roll gap with a rolling emulsion thermally influencing the circumferential surfaces of the rolls provides control of the quantity, pressure and/or temperature of the cooling fluid. In order to achieve short adjustment times at little expense, quantities, determined by control, of a medium which influences the friction coefficient between the strip surface and the circumferential surfaces of the roll barrels are to be applied directly to at least one strip surface, allowing a shift in the neutral point and hence a change in the rolling out to be achieved by influencing the friction coefficient.
Patent DE-3152748-A1 (DE)
Title: Manufacturing process for printed circuit boards and printed circuit boards produced by the said process
Inventor: STAHL FRITZ
IPC: H05K3/26
Filed: 1981-03-18
Abstract: In an improved semi-additive or fully additive process for producing printed circuit boards, the adhesion promotion layer exposed between the conductor tracks is removed virtually without the base material or the copper of the conductor tracks being attacked in a treatment with a chromic acid solution and subsequently suitable rinsing steps.
Patent DE-3200982-A1 (DE)
Title: Garage swing door having an upper tensioning device for the weight-compensating tension spring
Inventor: DOERING ERICH
IPC: E05D15/42
Filed: 1982-01-14
Abstract: A garage swing door with a lifting linkage for the door leaf, which has two-armed pivoting levers (3) which are articulated laterally on the door frame (1) and on the force arm (5) of which engage respectively via a pin (8) expanded weight-compensating tension springs (6, 7) fastened to the bottom of the door frame (1) laterally of the door leaf, possesses a respective spring-tensioning device (10) between the pin (8) of the force arm (5) and the upper end of the tension spring or tension springs (6, 7), in order to make it possible to set the necessary spring tension to the requisite value after the mounting of the door or later when the tension has diminished. A spring-tensioning device (10), which is simple to construct and mount and is operationally reliable and which can be adjusted in a simple way, even by technically untrained personnel, from a completely tension-free state to the necessary spring tension, has, on the upper part of each tension spring (6, 7), a screw-in part (25) held there, for example a sheet-metal part positively surrounding the last spring turn from below, with a screw thread (27) coaxial with the spring axis, a stirrup (15) suspended via the pin (8) of the force arm (5) or a pin (11) of an intermediate articulation member (9) articulated on the force-arm pin (8), and an adjusting screw (28) which is screwed into the screw-in part (25) of each tension spring (6, 7) through one leg (18) of the stirrup (15). <IMAGE>
Patent DE-3209420-A1 (DE)
Title: Apparatus for welding a plastic pipe section to a plastic fitting by the heated-tool method
Inventor: DOMMER ARMIN
IPC: B29C65/20
Filed: 1982-03-16
Abstract: The invention relates to an apparatus for welding a plastic tube section to a plastic fitting by the heated-tool method, having two carriers, adjustable with respect to each other on a frame by means of a setting device, and having receiving elements, attached to the carriers, for the plastic tube section and the plastic fitting, in which arrangement the receiving element for the plastic tube section is designed as a clamping element which encloses the plastic tube section and firmly holds it axially undisplaceably. In order that the plastic fitting is not deformed in the connecting region during fixing, it is provided according to the invention that the receiving element for the plastic fitting is designed as a guide element, which only aligns the plastic fitting axially with respect to the plastic tube section fixed in the clamping element and that, on the side of the guide element facing away from the clamping element, there is attached to the assigned carrier at least one adjustable stop, which supports the plastic fitting axially undisplaceably.
Patent DE-3212471-A1 (DE)
Title: Banana-shaped reflector with an attachment element for spoked wheels, in particular of bicycles
Inventor: KRIEGER ALBERT
IPC: B62J6/20
Filed: 1982-04-03
Abstract: Published without abstract.
Patent DE-3219470-A1 (DE)
Title: Asbestos-free composition and process for preparing the composition
Inventor: JELITTO ALFONS
IPC: B22D7/10
Filed: 1982-05-24
Abstract: An asbestos-free composition for use as a lining for floats, nozzles, plates and hot-top mould inserts in the casting of aluminium and aluminium alloys is described. The composition contains ceramic fibre, kaolin and coating cement, which is present at least superficially, at a density from 0.6 to 1.50 g/cm<3> and a thermal conductivity in the range from 0.20 to 0.35 W/m.K. The composition, which is obtained by mixing the constituents with the addition of a little water, and, if appropriate waterglass, subsequent heating and shaping treatment, has many possible uses and a long service life.
Patent DE-3221735-A1 (DE)
Title: Self-releasing cross-country binding
Inventor: SCHECK GEORG
IPC: A63C9/088
Filed: 1982-06-09
Abstract: The cross-country binding has a plate (2) which is arranged on the top of the ski, is pivotable about a pivot point (M) below the boot heel, and is held in a central position by means of a catch device (11) which opens under excess loading. Holding members (4, 5, 7) are arranged on the plate for retaining the front portion of the sole of the cross-country boot. The binding is released when impermissibly high torques occur in respect of the pivot point (M) of the plate (2) and thus in respect of the tibia axis of the legs of the skier. <IMAGE>
Patent DE-3224517-A1 (DE)
Title: Fan cylinder for cross-flow blower
Inventor: HOPFENSPERGER REINHOLD DIPL IN
IPC: F04D29/28
Filed: 1982-07-01
Abstract: The invention relates to a fan cylinder for a cross-flow blower, the said cylinder comprising two circular end discs with axially running fan blades (2), fastened in a distributed manner over their circumference, and at least one annular or disc-shaped reinforcing element or an intermediate disc (3) arranged between the two end discs. The intermediate disc (3) according to the invention has not only the task of bringing about a greater rigidity of the fan cylinder (1) but is additionally designed in such a way that it at the same time also reduces or completely eliminates the whistling sounds occurring during operation of the fan cylinder (1). <IMAGE>
Patent DE-3230229-A1 (DE)
Title: Show cabinet
Inventor: SCHINDLER RUDOLF
IPC: E04F10/06
Filed: 1982-08-13
Abstract: A show cabinet having a covering made of flat material which can be rolled up, in particular a roller blind covering, is described, in which the lower edge of the covering can be held in the covering position in contact with the worktop without any attachment means having to be provided on the worktop. In a preferred exemplary embodiment, the lower strip of a roller blind covering is provided with two connecting rods which are mounted so as to be pivotable on the frame parts arranged next to the opening. The strip and the connecting rods are designed to be so heavy that their own weight holds the roller blind securely in the covering position.
Patent DE-3230677-A1 (DE)
Inventor: SPRINGMANN HERMANN DR
IPC: C07C51/367
Filed: 1982-08-18
Abstract: A process for the production of carboxymethylates comprises reacting alcohols, ether alcohols, or alkyl phenols with an aqueous solution of at most a stoichiometric amount of free chloroacetic acid and twice the stoichiometric amount of an aqueous base. The chloroacetic acid and base are added separately, but simultaneously under agitation (at elevated temperature and under reduced pressure) to the alcohol or alkyl phenol. The water content in the reaction mixture, during the entire reaction, is maintained at 0.3-1.5% by weight. Increased selectivity results and it now becomes possible to use aqueous chloroacetic acid in this process.
Patent DE-3235974-A1 (DE)
Inventor: WEIKL ANDREAS DR
IPC: A61B17/22
Filed: 1982-09-29
Abstract: An apparatus and method for comminuting and/or eliminating constricted areas in vessels of all types whereby fissures and cracks in the vessel walls during the treatment of stenosis in blood vessels and also coronary obstruction are to be avoided. A treatment catheter is used which is equipped with two inflatable balloons which seal off a constriction place in a vessel on both sides thereof whereby the degree of expansion of both balloons is externally regulatable. An inlet member for the supply of means dissolving the material of the constriction area or comminuting the same into smaller particles and an outlet member for the removal of the dissolved or comminuted material of the constriction place are provided in the walls of the treatment catheter within the area delimited by the two balloons. These inlet and outlet members are in communication with a channel accessible from the outside.
Patent DE-3240786-A1 (DE)
Title: Electrical tubular bus bar
Inventor: REISCHL ALBERT
IPC: H02G5/06
Filed: 1982-11-04
Abstract: In single-polar tubular bus bars having spherical deflection points (3), the protection plates (11) which are arranged in the deflection points (3) and have the shape of spherical cups are electrically conductively connected on their rear side to the encapsulating sphere (4) and, seen in the flow direction, mutually overlapping protection metal sheets (14A, B, C, D) are provided in front of each supporting insulator (7), between the conductor tubes (2) and the encapsulating tubes (13) in the region of connecting sleeves (8), which protection plates are separated in the circumferential direction and whose covered-over ends are electrically conductively connected to the connecting sleeve (8) and/or to the conductor tube (2). <IMAGE>
Patent DE-3245950-A1 (DE)
Title: Process for the preparation of substituted pyridines
Inventor: AMSCHLER HERMANN DIPL CHEM DR
IPC: C07D213/79
Filed: 1982-12-11
Abstract: The invention relates to a process for the preparation of substituted pyridines of the general formula I <IMAGE> in which R<1> represents an optionally substituted hydrocarbon radical and R<2> represents -NH2, -NR<3>R<4>, -NHR<4>, -OH or -OR<5>, where R<3> denotes a lower alkyl radical, R<4> denotes a lower alkyl or phenyl radical and R<5> denotes a lower alkyl or benzyl radical, from aminoacroleins or their derivatives and alanine derivatives, compounds which can be prepared by this process, and medicaments which contain these compounds.
Patent DE-3247294-A1 (DE)
Title: Storage bag
Inventor: HERBERT REINHOLD
IPC: A61J1/10
Filed: 1982-12-21
Abstract: Physiologically harmless bag (10), which is heat-sterilisable and made of polyolefin materials, said bag (10) consisting in particular of a polyethylene film as bag material and a copolymer of ethylene and vinyl acetate with a vinyl acetate content of preferably 20-32% by weight as material for the tube attachment piece (20, 22) and the copolymer being crosslinked to the bag material after welding. <IMAGE>
Patent DE-3300285-A1 (DE)
Title: Electronic switched-mode power supply
Inventor: BERGK GUENTHER
IPC: H02J7/02
Filed: 1983-01-07
Abstract: The subject-matter of the invention is an electronic switched-mode power supply for the power supply of, especially, an accumulator from an AC or DC voltage source of variable voltage magnitude. The switched-mode power supply consists of a flyback converter whose primary is pulsed and which has a transformer whose primary winding is connected in series with the switching junction of a first transistor and a first resistor and whose secondary winding is connected in series with the accumulator and a diode. The base of the first transistor is connected both via the series circuit of a first capacitor and a feedback resistor to one winding end of the secondary winding of the transformer, as well as via a second resistor to the collector of the first transistor. The emitter of the first transistor is connected via an emitter resistor to earth or reference potential, the base of a second transistor being connected to the emitter resistor, the switching junction of which second transistor is connected via a diode to the base of the first transistor and/or to earth or reference potential. By using the charge stored in the feedback capacitor, a secondary current is achieved which is constant over large ranges of operating voltage, is ensured even in the event of spurious influences and component scatters, and ensures defined charging of the accumulator as well as protection against an excessive charging current.
Patent DE-3303521-A1 (DE)
Title: Signalling or hit-indicating device for fencing, in particular in the infra-red range
Inventor: MAIER TILO
IPC: A63B69/02
Filed: 1983-02-03
Abstract: The antiquated method of the current hit indicator or signaller is awkward and fraught with accidents. Due to the cable connections to the fencer, the possibility of accidents caused by tripping cannot be eliminated. Similarly, the effects of wear are considerable. In some cases, malfunctions are not put right even after hours! In order to avoid such incidences, it is proposed to produce the devices described in the patent claims.