baber/WOPTO huggingface dataset:
Patent DE-2941687-A1 (DE)
Title: Cleaning tuyeres on converter for mfg. copper or nickel - where high pressure air, gas, or liq. is periodically blown through tuyeres to prevent or remove blockages
Inventor: KRESTEV ZVETAN PETROV DIPL ING
IPC: F27D25/00
Filed: 1979-10-15
Abstract: For refining the molten Cu or Ni, air (I) at an absolute pressure of 1.6-2.2 atmos. is blown through the tuyeres. Each tuyere consists of two coaxial forming an annular gap(g) between the bore of the outer tube and external dia. of the inner tube. To clean the tuyeres, high pressure air (II) at an absolute pressure of 2-8 atmos. is periodically fed through gap(g) to remove any deposits which could block the tuyeres. In the pref. plant, compressed air (I) is fed via a flow-meter, solenoid valve (3), and an electromechanical distributor to the tuyeres; and a second solenoid valve (6) can be used to connect a reservoir (7) to the tuyeres. Reservoir (7) contains air (II), gas, or a liq. or solid, which can be injected through the tuyeres. Rapid and simple cleaning of tuyeres is achieved without manual work so that e.g. with a converter 41/4 metres long and 2.8m dia., with twelve tuyeres, each 38mm dia., output could be raised from 70 tonnes/day to 90 tonnes/day.
Patent DE-2945381-A1 (DE)
Title: Compression shrinkage machine for textiles or paper - has controlled horizontal movement of belt guide rollers, and controlled vertical movement of driven pressure roller
Inventor: HILTON CHARLES HERBERT
IPC: D06C21/00
Filed: 1979-11-09
Abstract: Machine comprises an endless belt passing over front and back guide rollers and a third, driven pressure roller which drives the belt and causes the fabric or paper to shrink. The shrinkage is effected by the contraction of the pressure roller and the front guide roller. The three rollers are mounted in blocks on each side of the machine. The guide rollers for the belt may be displaced horizontally by screw control, and the driven, pressure roller may be displaced vertically by hydraulic pressure controlled by micrometric stops. The machine is open-sided for ease in belt changing, and a machine may be introduced for straightening twists in the belt. The horizontal movement of the guide rollers may crecreate a variable arc of contact and thus vary the force applied between the front guide roller and pressure roller. Improved control is achieved both of the compression, and of the finish produced. A particular shrinkage may be obtd. with lighter pressures than those obtd. by known machines of this type.
Patent DE-2948484-A1 (DE)
Inventor: UHLMANN OTTO
IPC: B21C1/22
Filed: 1979-12-01
Abstract: 1. Process for the continuous manufacture of thermally insulated tubing, for pipework installations, starting from a seamless copper tube in the hard-drawn or semihard-drawn condition, this tubing possessing a plastic-based thermally insulating sheath, characterized in that a long length of copper tube, which has been predrawn, save for the finishing pass, is pulled from a coil and is drawn to the finished dimensions, on a drawing machine, in one pass, is straightened, is encased in a plastic sheath, which is cooled, and the tubing is thereafter cut into lengths not exceeding 10 metres, and preferably into 5-metre lengths.
Patent DE-2949639-A1 (DE)
Inventor: EBENHOEH PETER DIPL ING
IPC: H04B17/40
Filed: 1979-12-10
Abstract: 1. Method for the monitoring of transmission links for digital signals with a higher transmission speed, by means of intermediate stations which are interposed into the transmission link at periodic distances and which contain pulse regenerators, by the monitoring of the identification signals which are emitted from these intermediate stations, characterized in that the identification signals occur in the transmission range of the digital signals and in a frequency range which corresponds to approximately 2 ... 4 %. of the Nyquist frequency of the digital signals, that all the received identification signals in the intermediate stations are separated from the transmission signal, are amplified in a transmission path which is independent of the pulse regeneration for the digital signal, are shaped, and are subsequently attached to the regenerated digital signal from which the components which are being replaced by the identification signals were previously gated out, that in each intermediate station the transmitted digital signals are monitored and when a specific error value is exceeded the identification signal emitted from this intermediate station is modified in a recognizable manner.
Patent DE-3000179-A1 (DE)
Title: Water heating system with forced circulation - has pipes mounted in chimney to recover waste heat from flue
Inventor: SCHEYING HEINZ
IPC: F28D21/00
Filed: 1980-01-04
Abstract: The water-heating system is designed to operate with forced circulation. It incorporates a number of pipes mounted in the chimney so as not to impede the draught or interfere with cleaning of the chimney. The system makes maximum use of heat which would otherwise be wasted. It may embody a counterflow system, with cool water entering the heat exchange pipes at the top of the chimney where the flue gases are cool, and with hot water leaving at the bottom, where the flue gases are hotter.
Patent DE-3002559-A1 (DE)
Title: Laser beam power and intensity measurement sphere - with additional photodetector and movable screen which also serves pulsed lasers
Inventor: BLAZEK VLADIMIR DR ING
IPC: G01J1/42
Filed: 1980-01-25
Abstract: The measurement head is for measuring the beam intensity and power of lasers consists of an Ulbricht photometer sphere (1,2) with a white diffusely reflecting coating on the wall of its hollow spherical inner chamber. The sphere has openings for entry of the laser beam and for insertion of a photodetector. The head enables measurement of power and intensity of pulsed lasers with any frequency and pulse shape as well as of low and high powers of continuously emitting lasers. The wall opening (4) for a large surface photodetector (9) is placed diametrically opposite the laser beam (E) inlet (3). A flat or spherical screen (8) with a white diffusing surface is movable between a position where it screens the photodetector (9) and reflects the beam and a position where it allows the beam to pass to the photodetector. A high frequency detector (10) is placed perpendicular to the beam direction.
Patent DE-3007646-A1 (DE)
Title: Round baler twine-tying mechanism - has cam mechanism driven via variable speed indexing mechanism from baler
Inventor: SACHT HANS-OTTO DR ING
IPC: A01D85/00
Filed: 1980-02-29
Abstract: The twine-tying mechanism is for an agricultural round baler, having a twine guide arm moved to and fro along an intake gap by a cam mechanism driven directly from the baler, and whose lateral feed is automatically controlled. The cam mechanism (12,17,18) is coupled to the baler drive (32) via an indexing mechanism (20,21) whose speed is adjustable while the machine is running. This mechanism can be arranged to operate at two or more different speeds during a tying operation.
Patent DE-3012418-A1 (DE)
Title: Fuel injection nozzle for IC engine - has second fuel passage for pilot fuel injection
Inventor: KUEPPER HEINZ
IPC: F02M43/04
Filed: 1980-03-29
Abstract: The fuel injection nozzle (1) for an internal combustion engine has provision for pilot injection of an easily ignitable fuel, supplied through connection (7), followed by the main injection of another fuel, supplied at connection (6). The main fuel flows through duct (8) to the high pressure fuel passage (9) which is controlled by needle valve (3). Needle valve (3) has an axial hole (14) leading to restrictor hole (15) which enters the main fuel passage just upstream of the needle valve seat (3.2). The pilot fuel is supplied through holes (14,15). It forms a plug near the valve seat and is injected when the valve opens through the injection pulse in the mains fuel supply.
Patent DE-3016343-A1 (DE)
Title: Electronic B-C-D counter in 8421 code - resets previous counting decade via transistors having bases coupled to outputs of first flip=flop
Inventor: MERKLE PAUL
IPC: H03K23/58
Filed: 1980-04-28
Abstract: The counting circuit has a tripping impulse lead. In the intermediate regions of the flip-flops transistors or similar components are installed. The transistors of the impulse lead are controlled from the count outputs of the flip-flops. Flip-flops of type A are not directly tripped from the impulse lead but rather indirectly through control of other transistors. Flip-flops of type B are directly tripped by the impulse lead. The flip-flops are tripped from the L-H flanks of positive impulses or by corresponding formulation from the H-L flanks of negative impulses. The resetting of a counting decade after the tenth counting impulse is effected through the first flip-flop of the next counting decade.
Patent DE-3027208-A1 (DE)
Title: Rotary piston IC engine - has rectangular pistons pivoted on rotor concentric in stator
Inventor: MARTIN ARTAJO JOSE IGNACIO DR
IPC: F01C1/44
Filed: 1980-07-18
Abstract: The engine has a stator (1) with an inner profile formed of four arcs, joined by four straight sections. A rotor (8) revolves on an axis through the centre of the stator and carries several pistons (5) on its periphery. Each piston is in the form of a rectangle with rounded corners and pivots on the rotor on an axis parallel to the rotor axis. Two of its edges (6) run on the inside of the stator. The resulting motion produces variable volume working chambers between the pistons and stator. It is equivalent to a trochoidal path, but is achieved with more easily machined components.
Patent DE-3033825-A1 (DE)
Title: Speed adjustable motor drive for bicycles - has shunt wound motor with armature and excitation current switch having reduction gear and clutch in integrated drive block
Inventor: VOLKRODT WOLFGANG DR ING
IPC: B62M6/60
Filed: 1980-09-09
Abstract: The drive system includes a rechargeable accumulator battery, an externally excited d.c. shunt wound motor with a reduction gear, a clutch, and a wheel chain drive. On the bicycle handlebars is mounted a cable operated control. For speed adjustment the motor uses switches for armature voltage and excitation current control, housed together with the reduction gear and clutch in an integrated drive block, mounted in the bicycle frame near the pedal bearing. The control on the handlebars actuates the engagement and disengagement of the electric drive, the change-over of the armature voltage to full battery voltage and reduction of the excitation current. The control is carried out in such manner that, on starting, the electric drive is fully decoupled for normal pedal drive. Subsequently the electric motor is coupled to the bicycle wheel and finally the motor takes over the drive, with the Bowden cable control fully engaged.
Patent DE-3036468-A1 (DE)
Title: industrialised cell and frame assembled building - has completely prefab. room cell units inserted in prefab. frame
Inventor: KRAUSE GUENTER
IPC: E04B1/348
Filed: 1980-09-24
Abstract: A building, of one or more storeys, is constructed from three-dimensional elements inserted into a framework. The three-dimensional elements are completely prefabricated, in a usable state, before insertion into the framework. Steel may be used. The units can be produced on a conveyor-belt system. For economy in weight and bulk, divided elements can be detachably screwed together in the door case area. Hooks and eyes for transport are pref. immobile and detachable. Reinforced concrete, aluminium, plastics and wood are also suitable materials.
Patent DE-3036992-A1 (DE)
Title: Crane on transporting vehicle - has ram-operated arm on super-structure with jib derricking axis at free end
Inventor: KAISER HERMANN
IPC: B66C23/42
Filed: 1980-10-01
Abstract: The crane, mounted on a transporting vehicle, is controlled from a driver's seat, having a slewing telescopic jib on a horizontal axis derricked by a ram, lowered into the travel position. A swing arm (2) is mounted on the slewing superstructure (1), lifted by a further ram (3) into the working position, the derricking axis (4) of the jib (5) being at its end, where the driver's seat (6) is also situated. The jib derricking ram (7) is also supported on the superstructure. The seat can be to one side of the derricking axis and a crane-driving motor to the other.
Patent DE-3046405-A1 (DE)
Title: Lightweight fire:resistant and heat:retaining concrete - made by mixing magnesia cement with hollow microbeads made of organic substance
Inventor: QUANTE HEINRICH
IPC: C04B28/32
Filed: 1980-12-10
Abstract: Lightweight fire-resistant and heat-retaining concrete. The concrete has a density of 150-1000 kg/cu.m, esp. 250-350 kg/cu.m; and is made from a mixt. contg. magnesia cement as a binder; plus a lightweight porous aggregate consisting of hollow microbeads made of an organic substance; and possibly also fine sand. The mixt. pref. also contains by wt. 1-25, esp. 10-20% organic or inorganic fibres as reinforcement; the fibres are pref. 1-10, esp. 3-7 mm long. The resulting mixt. is pref. subjected to a hydrophobic treatment, e.g. by adding CuCl, bitumen emulsions or polymer dispersions. The concrete has an extremely low thermal conductivity, combined with high bending- and tensile-strength, so it can be used to make wall elements, and panels which have a height of one storey. The magnesia cement provides the mechanical strength, whereas the hollow microbeads provide thermal insulation. The organic or inorganic fibres increase the strength of the concrete.
Patent DE-3106091-A1 (DE)
Title: Arrangement of medical devices for the application of biological feedback in tumour therapy
Inventor: SIEBKER THOMAS
IPC: A61B90/00
Filed: 1981-02-19
Abstract: The patent application relates to a device arrangement for therapeutic purposes in localised tumours accessible to probing. The principle is based on the mechanisms of biological feedback. For this, the metabolic intensity of the tumour is recorded by measurement of the blood flow through the supply artery and of the tumour temperature to the extent possible. Awareness of the tumour event by the patient via visual and acoustic presentation makes improvements in the pathological process possible via psychosomatic stimulation (see also "object" and "further development").
Patent DE-3106459-A1 (DE)
Title: Portable electrical device, to the housing of which a holder is attached
Inventor: FREIBERGER WOLFGANG
IPC: H04R1/08
Filed: 1981-02-21
Abstract: This holder (25) can be optionally used as elastic clip (Figure 1) or as stand (Figure 3). The holder exhibits at least two flat parts (18, 23) which are connected to one another via a hinge (22). The holder also includes a leaf spring (14) which establishes the connection between a flat part (18) and the device (10). In the folded-together state, the flat parts form the clip (Figure 1) and in the unfolded state they form the stand (Figure 3). For the stand to be relatively rigid, the hinge end of the second flat part (23) is provided with an extension (28). The extension is dimensioned in such a manner that its free end (29) is remote by a distance (a) from the plane which extends through the hinge axis (30) and stands perpendicularly on the associated device surface. <IMAGE>
Patent DE-3116609-A1 (DE)
Title: Circuit for producing at least one regulated DC voltage
Inventor: KRAJCIK MICHAL ING GRAD
IPC: G05F1/585
Filed: 1981-04-27
Abstract: In order to produce (generate) a DC voltage whose two poles are not at the electrical zero potential, in each case one current limiter (1, 2) for the positive voltage component and the negative voltage component are connected together and are in each case provided with a regressive current-limiting characteristic in the current/voltage diagram in the event of overload. In order to ensure reliable switching on even when subject to a load which lies between the two poles independently of the voltage zero point, both current limiters (1, 2) are controlled by only one control-voltage transmitter (3). The circuit is suitable as a power supply for differential amplifiers. <IMAGE>
Patent DE-3119007-A1 (DE)
Title: Spectrophotometer and method for conducting spectrophotometry
IPC: G01J3/06
Filed: 1981-05-13
Abstract: The invention relates to a spectrophotometer having a light source, specimen chamber, dispersive element, at least one analysis stage and an evaluation device in which a rapid drive is provided for the purpose of pivoting the dispersive element. The rapid drive comprises a motor and an endless belt on which the free end of a control rod is guided in a sliding fashion. The other end of said rod is connected non-rotatively to the holder of the dispersive element, and a device is provided for assigning positions.
Patent DE-3119087-A1 (DE)
Title: Abrasive-blasting unit for precision-mechanical workpieces, in particular castings in dental technology
Inventor: GUNDLACH HANS-WERNER DIPL CHEM
IPC: A61C3/025
Filed: 1981-05-14
Abstract: Abrasive-blasting units which are used for blasting relatively small workpieces, in particular castings in dental technology, are to be configured in a compact and externally attractive manner. The invention thus proposes to produce the housing (10) of the abrasive-blasting apparatus from foamed plastic (polyurethane). Said housing comprises a plurality of sub-housings (31, 32) which are closely fitted to one another at an essentially horizontal parting plane (33), which runs at least over the region of three abrasive-blasting containers (15, 16, 17), with the result that the sub-housings (31, 32) can be easily produced with the necessary stability. <IMAGE>
Patent DE-3124515-A1 (DE)
Title: Device for preventing voltage collapses
Inventor: KIEFER HANS E ING GRAD
IPC: H02P1/54
Filed: 1981-06-23
Abstract: A device is proposed for preventing voltage collapses, which is used especially in the case of battery-operated apparatuses. Photographic or film apparatuses are battery-operated and frequently have two motors. If both motors now run simultaneously, then the load on the batteries is very high, so that voltage collapses occur which prevent satisfactory operation of the electronics in the cameras. An AND logic operation results in, for example in the case of a single-image circuit in a film camera, the motor for film transportation not starting at the same time as the motor for the capstan.
Patent DE-3126421-A1 (DE)
Title: Shaft seal
Inventor: MUELLER HEINZ KONRAD PROF DR I
IPC: F16J15/32
Filed: 1981-07-04
Abstract: The invention relates to a sealing arrangement for sealing off liquids under high pressure on rotating shafts. The PTFE sealing ring (1), which is subject to pressure on all sides except for the narrow contact faces (7 and 8) is pressed in sealing fashion against an end surface and circumferential surface by the elastic clamping ring (3). According to the invention a PTFE intermediate ring (2) is installed between the sealing ring and the clamping ring. The sealing ring can rotate in a low-friction manner relative to the circumferential surface and/or the end surface and, at the same time, slide on the intermediate ring. The frictional heat is dissipated from all the sliding surfaces by the drag flow of the liquid to be sealed off brought about by means of oblique grooves (13 and 21). <IMAGE>
Patent DE-3127670-A1 (DE)
Title: Hearing aid
Inventor: GRIESE HANS-JOACHIM DR ING
IPC: H04R25/00
Filed: 1981-07-13
Abstract: The invention relates to a hearing aid with at least one remote microphone and a preferably post-aural hearing device. The microphone signals are transmitted in wireless fashion via radio-frequency radiation from a radio-frequency transmitter assigned to the microphone to a radio-frequency receiver assigned to the hearing device. The object is to enable the use of a plurality of remote microphones without interference and to design the receivers so that they are small enough and light enough to form without difficulty a structural unit with conventional post-aural hearing devices. According to the invention, the transmission is performed with carrierless single sideband signals.
Patent DE-3131258-A1 (DE)
Title: Rotary internal combustion engine
Inventor: SCHEFFOLD PETER
IPC: F01C1/20
Filed: 1981-08-07
Abstract: Rotary internal combustion engine comprising a compressor disc (12) fixed on a drive shaft (10), with two rotary pistons (14A, 14B) fixed to the disc, a compression chamber (16) sealingly accommodating the rotary piston, a gate disc (20) fixed on a gate disc shaft (18) with at least one rotary piston gate, a drive disc fixed on to the drive shaft (10) and a drive chamber, coaxial with the drive shaft (10) and accommodating the drive disc. <IMAGE>
Patent DE-3131737-A1 (DE)
Title: Heat exchanger
Inventor: HAYASHI MASAKATSU
IPC: F28F13/12
Filed: 1981-08-11
Abstract: A heat exchanger having a multiplicity of parallel fins which are situated laterally next to one another, and having heat exchange tubes extending through an arrangement of fins permits heat exchange between a fluid flowing through the heat exchange tubes and a fluid flowing between the fins. The heat exchange takes place in this case through the walls of the heat exchange tubes and the fins. The fins are respectively formed in their wall between the adjacent heat exchange tubes, which are arranged in a row, with the cross-section of roof-shaped strips by executing cuts therein, and due to the fact that the material of the fins is raised such that the roof-shaped strips are aligned at right angles to the direction in which the fluid flows between the fins. The angle of the roof-shaped strips, the level of the lateral edges of adjacent roof-shaped strips and the spacing (pitch) of the fins are fixed using given values in order to optimise the ratio of an increase in the heat exchange to an increase in the resistance opposing the passage of the fluid, and this also results in an increase in the strength of the fins. <IMAGE>
Patent DE-3138853-A1 (DE)
Inventor: FUESSINGER RHEINHOLD
IPC: E01D15/12
Filed: 1981-09-30
Abstract: 1. Bridge kit, composed of a traversing beam which is composed of individual sections (6, 8) coupled together and of individual bridge sections (2, 4), which are coupled together, moved over the traversing beam and have an U-shaped cross-section, whereby the traversing beam is provided in the longitudinal axis of the bridge, characterized in that the bridge sections (2, 4) are composed of a central part (12) and of two side parts (10), that the side parts (10) are containing track-ways in the shape of hollow boxes, that the side parts (10) are turnably connected along the longitudinal edges of the central part (12), for being folded under the central part (12) in a transport position, and that hoisting points are so arranged in the bridge sections (2, 4) that the side parts (10) automatically fold underneath the central part (12) by lifting (dismantling), or fold out from underneath the central part (12) (assembly).
Patent DE-3141624-A1 (DE)
Title: Central alarm system
Inventor: SAITOH KAZUHITO
IPC: G08B19/00
Filed: 1981-10-20
Abstract: A central alarm system has a central unit, at least one terminal station and transmission lines which connect the central unit to each terminal station. The system is operated in normal, monitoring and control modes in repeated succession. The occurrence of an abnormal or undesirable condition in one terminal station is identified during monitoring mode and a specific desired alarm device is selected during control mode. If three transmission lines are provided, one line is used to transmit the monitoring signal in order to verify the occurrence of an abnormal condition, and the other line is used to transmit the control signal in order to select the desired alarm device. If, however, only one pair of transmission lines is provided, one line is used as a data line for time-sequential transmission of all signals. <IMAGE>