baber/WOPTO huggingface dataset:
Patent DE-2943448-A1 (DE)
Title: Excitation circuit for sync. machine - has starting resistor partly used as protection resistor for auxiliary thyristor
Inventor: MAASLAND HANS-HERMANN
IPC: H02P25/03
Filed: 1979-10-25
Abstract: The excitation circuit has a starting resistor (7) partly in series between the pole wheel winding (8) and the rectifiers (1-3) of the excitation machine (9). The remaining part (7') of the resistor is used as protection resistor (RS) for the auxiliary thyristor (5) and thereby, for the one of the current directions on the dc side of the excitation circuit, likewise in series with the pole wheel winding and the phase winding of the excitation machine. The starting resistor for the current half wave that flows via the auxiliary thyristor is less than for the current half wave that flows via the rectifiers of the excitation machine.
Patent DE-2943906-A1 (DE)
Title: Impact absorbing car bumper - has extruded elastic strip with axial holes and with fitted end pieces
Inventor: KURODA SHIGEHARU
IPC: B60R19/18
Filed: 1979-10-31
Abstract: The bumper has an extruded plastics strip (10) covered with a trim layer and with the ends fitted with trim caps (11a). The entire strip is backed by a metal plate (12) to which the mounting brackets are secured. The inner strip has a series of parallel bores for the elastic effect, while the outer layers can be of a harder plastics material bonded to the inner in one operation. Alternatively the inner can be formed by a bundle of plastics tubes embedded in the outer layer.
Patent DE-2944516-A1 (DE)
Title: Cutting machine for large diameter metal discs - has rotary cutters driven by hydraulic motors arranged in parallel circuits
Inventor: SANDER HEINZ
IPC: B23D33/04
Filed: 1979-11-03
Abstract: The machine for cutting large dia. discs out of sheet metal has a worktable (6) supported inside a rectangular frame (5). The workpiece (8) is clamped to the worktable by a bolt (29) actuated by the hydraulic cylinder (28). The metal cutters (11,12) are driven by cardan shafts (14,15) from hydraulic motors (20,21). These motors are driven in parallel from a common pump (26) mounted in the base (2). With the motors (20,21) being driven in parallel there is the same pressure drop across each motor, so that both motors run at the same speed and produce a good quality edge on the workpiece.
Patent DE-2947008-A1 (DE)
Title: Emergency supply for mains-operated fluorescent tube - has diode and thyristor in one mains lead, for reducing positive or negative wave portion
Inventor: WERDING NORBERT
IPC: H02J9/06
Filed: 1979-11-22
Abstract: The fluorescent tube, normally supplied from three-phase mains, has an emergency light supply consisting of a charge rectifier for an emergency battery and a threshold value switch. The latter connects the fluorescent tube to a lower threshold value via a change-over switch, on failure of the main voltage. This provides a connection to the emergency light device, while simultaneously switching-on to a voltage converter supplying the sirect current. In one of the current conductors supplying the fluorescent tube with alternating voltage from the mains, is incorporated an electronic module consisting of a diode and a thyristor. The module reduces the positive or negative wave portion by 2 to 10 percent. An opposite pole of the voltage converters is connected to the fluorescent tube electrode, supplied with the reduced positive or negative half-wave. Typically the wave reduction is 5 percent.
Patent DE-2948335-A1 (DE)
Inventor: KRAICAR HEINZ DIPL ING
IPC: H04B3/44
Filed: 1979-11-30
Abstract: 1. A circuit arrangement for remote feeding intermediate stations of a device relating to communications transmission technology by means of direct current series-feeding, where there is arranged in a remote feeding circuit a series connection of two current sources (Q) in the supply stations (1, 2) of the communications transmission device and connected to one another by means of a pair of power supply leads, and a first current source (Q1 ) contained in a first supply station (1) can emit a constant nominal current and a second current source (Q2 ) contained in a second supply station (2) can emit a constant current that is reduced relative to the nominal current, in such manner that during normal operation only the first supply station (1) emits the nominal current, characterized in that at least the second current source (R2, Q2 ) has a regulating characterized which depends upon the output voltage (U2) in such manner that the nominal current (IN ) is emitted when the output voltage (U2) is in a given region (b) and the reduced constant current (IK3 ) is emitted below this voltage region (b). (Fig. 2, 3).
Patent DE-2949899-A1 (DE)
Title: Electrically conductive paper with piezoelectric properties - obtd. by adding dissolved crystalline substance giving dipoles
Inventor: PRUSS GUENTER
IPC: H01C10/10
Filed: 1979-12-12
Abstract: Electrically conductive paper with ferro- and/or piezoelectric properties is produced by adding dissolved crystalline material with these properties to the starting material or the finished materia, which change the amorphous internal state of the paper so that a conductive paper with partly crystalline structure with dipoles results. These are (partly) polarised by the passage of current or previously in a strong electric field and the pressure-dependent change in resistance of the paper is effected favourably, so that very much better reproducible values are obtd. in use. The starting material is also treated with blowing, swelling or fermenting agents, to loosen its structure; and with electroluminescent substances, metal oxides or fire retardants, The paper becomes denser on pressing and functions as solid resistor. The paper is used in metering and switching operations, e.g. in underfloor alarms. It is stamped, rolled or used in areas of various fields in probes, sensors, switches or in conjunction with other displays as resistor. Suitable crystalline additives include Rochelle salt and Ba titanate.
Patent DE-2950124-A1 (DE)
Title: Compact intensity measuring device for high power medical laser - has dispersion chamber for preventing overheating
Inventor: ROTHER WERNER DR
IPC: G01K17/00
Filed: 1979-12-13
Abstract: The intensity measuring device uses radiation detectors. It has a chamber (1) with some walls (1.1,1.2) which are diffusely reflective and into one of which, the end of a light guide (4) projects. A second such wall (1.2) has a light exit (5) receiving indirect laser light from the light guide and allowing it to fall on a radiation detector (8) outside the chamber (1). A dispersion lens (13) may be fitted into the light exit aperture. Pref. the chamber (1) is defined by two spaced parallel diffuse reflective plates (1.1,1.2) coupled via spacer bolts (2) and surrounded by a diffuse transparent sidewall of 'Teflon' RTM. The second plate (1.2) has four light exits (5) arranged symmetrically around the axis of the light guide (4) with a respective detector (8) behind each one.
Patent DE-2950874-A1 (DE)
Title: Fire protective door insulation frame - has two shanks of profile bars and two of flat bars, diagonally opposed
Inventor: SCHROEDERS THEO
IPC: E06B5/16
Filed: 1979-12-18
Abstract: Inlays of insulating material are located between two cladding plates. They are bounded by a stiffening frame made from steel profile bars, comprising four shanks with the plates fastened to them at an interval by cross arm pieces. The system is used in a door affording protection from fire. Two shanks (3,4) converging at a common corner point (9), are made up from steel profile bars, and two shanks (5,6) converging at a diagonally opposite corner (11) are formed by flat steel bars. The former are pref. U, L or T-sectioned, and the latter rectangular-sectioned.
Patent DE-3000527-A1 (DE)
Title: Duplex water turbine assembly - passes water through geared turbines followed by water-wheel with semicircular buckets
IPC: F03B1/04
Filed: 1980-01-09
Abstract: The duplex water turbine uses a given head and quantity of water, delivered centrally to turbines mounted vertically or horizontally outside a common axis of rotation, these then delivering power via gearboxes to the central output shaft (10). The peripheral speed of the water emerging from the rotary turbines is at least equal to the jet speed possible at the incoming water pressure, and this water is deflected through 180 deg. by the semicircular buckets on a waterwheel, the energy produced being transmitted to the output shaft via a 2:1 speed-increasing gearbox.
Patent DE-3004213-A1 (DE)
Title: Solar heat absorption roof - comprises hollow pieces formed by parallel plates welded together to resemble tiles
Inventor: KOFING SIEGFRIED DR ING
IPC: E04D13/18
Filed: 1980-02-06
Abstract: The absorption roof is for solar and environmental heat, having hollow pieces through which a heat-transfer medium flows. Each piece (1) comprises two parallel plates 2 to 5mm. apart and of convenient size for transport and assembly, i.e. 1m.wide x 2m. high maximum. The plates are welded together along all their edges to formed sealed joints and to resemble a tiled roof, the inner plate (3) having an inlet union (4) at the bottom and an outlet one (5) at the top. The outer plate (2) is shaped like a tiled roof on the outside.
Patent DE-3005841-A1 (DE)
Title: Pulverised coal fired turbine - replaces oil firing in ship's drives
Inventor: DIEL WALTER
IPC: F02C3/26
Filed: 1980-02-16
Abstract: In a particular use for ship's drives, the output shaft is equipped with a heavy flywheel and drives a hydraulic coupling. The pulverised coal forms a useful alternative to replace scarce and costly fuel oil. The pulverised coal is injected into a combustion chamber of a turbine system similar to a kerosene type, but larger if necessary. A flywheel on the output shaft protects the turbine against shock loads. A reduction gearbox and a hydraulic coupling drive the propeller. The turbine blades can be adjusted for speed change or reversal.
Patent DE-3007914-A1 (DE)
Title: Clip for securing plastic can capacitor to mounting board - moulded onto capacitor base with two spring arms for gripping on sides of locating hole
Inventor: HUPFER GEORG
IPC: H01G2/04
Filed: 1980-03-01
Abstract: The mounting clip, made of plastics material, comprises a lug (4) moulded onto the base (2) of the capacitor can (3). The lug opens out into two leaf springs pointing in opposite directions and turned at a point along their length through slightly less than 90 degrees towards the base of the can. The extreme ends are formed into a stepped lip (8, 9). The clip is pushed through a rectangular opening (10) in the mounting board (11, 11'). As the springs expand after passing through the hole the stepped lip engages with the opposing edges of the hole to provide the location. The stepping can be arranged to engage with several different thicknesses of mounting plate. The mounting clip may be integral with the capacitor can or affixed to it after capacitor mfr.
Patent DE-3008946-A1 (DE)
Title: Programmable windscreen-wiper switch for vehicle - has comparator, counters and selection circuit allowing various modes
Inventor: BETZIN JUERGEN ING GRAD
IPC: B60S1/08
Filed: 1980-03-08
Abstract: The switch has a counter (4) driven by an oscillator (1) via a selection circuit (2). A comparator (6) compares the contents of this counter with those of a second counter (5) selected by the selection circuit. The selection circuit position is controlled by control logic (3). The outputs of the comparator and the control logic are connected to a pulse output circuit (7). The selection circuit may be a part of the counters or it may be separate from them. The control logic has control inputs (a-c) for inputting start, repeat, reset and continuous wiping signals. The oscillator is controlled by an electronic tachometer (1a) and a moisture detector (1b).
Patent DE-3010027-A1 (DE)
Title: Missile guidance mechanism mounting - has fins hinging on sleeves pivoting on bushes fixed to missile body
Inventor: REITER RUDOLF
IPC: F42B10/14
Filed: 1980-03-15
Abstract: The hinge mounting is for a guidance mechanism, partic. of a missile or flying object, having folding guide fins each on a bracket. These swing out from a rest position inside a chord of the missile outline about a first axis at right angles to this chord into an intermediate position, and from the latter about a second axis into the flight position in a radial plane passing through the lengthwise axis of the missile, being controlled by a sliding member so that they remain permanently in the plane of the chord. Each bracket (2) has a pivot sleeve (31) on which the fin (1) hinges about the first axis (A) in direction P1. The sleeve turns on a bush (28) fixed to the missile body about the second axis (B), and which has a guide slot (29) centred on the second axis, causing the fin to turn on the first axis and the sleeve to turn on the bush.
Patent DE-3012741-A1 (DE)
Inventor: CRUCIUS MICHAEL DR
IPC: H01C7/12
Filed: 1980-03-28
Abstract: Disclosed is an overvoltage arrester in which the active part comprises a number of shielding elements with arrester elements fastened thereto in the interior thereof. The shielding elements along the inner circumference thereof have a circular depression for electrically and mechanically connecting the arrester elements to the shielding elements. The shielding elements are connected to each other by insulating support members and conducting support members. The arrester elements can be arranged in a star- or cross-shaped structure at the center of which conducting or insulating connecting members may be provided. Arresters according to the invention are particularly suited for use in pressurized gas-insulated metal-encapsulated high-voltage switching installations in conjunction with arrester elements having voltage-dependent resistors of the zinc oxide type. The active part of the arresters according to the invention can be installed outdoors without a housing. In addition to zinc oxide resistors, resistors of other non-linear materials can be used for the arrester elements.
Patent DE-3013342-A1 (DE)
Title: Multiple extension exchange line hold circuit - uses diode bridge and switchable thyristor with LED indication to hold exchange line loop
Inventor: MAESTRE JIMENEZ JOSE ANTONIO
IPC: H04M1/80
Filed: 1980-04-05
Abstract: A diode bridge, with thyristor, and LED indication circuits holds a telephone exchange connection whilst the telephone speech circuit is disconnected to talk to a further extension prior to transfer of the call to that extension. The diode bridge makes the controlling thyristor, which holds the exchange loop, independent of the voltage polarity on the exchange line. The diode bridge (D1-D4) is connected across the exchange line (L1, L2) at a point on the exchange side of the switch hook springset in the telephone and ensures the correct polarity on a Zener diode (Z2) and thyristor (T1) in the holding circuit. In normal condition the thyristor (T1) is non-conducting and no current is drawn from the exchange line. The thyristor (T1) is turned on by operating a key (Re to short the gate and anode. An LED may be connected in series with the thyristor to indicate a held line.
Patent DE-3018066-A1 (DE)
Title: Crimping tongs with jaws functioning as gas burners - esp. for crimping vitreous silica pumping tubes on discharge lamp bulbs
Inventor: SCHERZER JOACHIM
IPC: C03B23/049
Filed: 1980-05-10
Abstract: The tubes have a max. dia. of 10 mm, a wall thickness of 0.5-2 mm, and are made of glass, es-. fused silica. The tongs consist of two handles mounted on a pivot and carrying a jaw. The working surface of each of the two jaws is provided with a row of nozzles producing flames from a fuel gas mixt. fed through the hollow tong handles and jaws. The length of each row of gas nozzles is appreciably greater than the dia. of the tubes being crimped. Each row of gas nozzles pref. consists of four holes, where the dia. of the two middle holes is smaller than the dia. of the two end holes; and a return spring is pref. located between the two tong handles. Used esp. to obtain defect-free, vacuum-tight seals on pumping tubes etc. provided on the bulbs of electric discharge lamps.
Patent DE-3029236-A1 (DE)
Title: Reclaiming aluminium from anodising bath contg. sulphuric acid - where bath is fed into cooling tank used for pptn. of double aluminium salt which is removed by filtration
Inventor: LECHER ELMAR
IPC: C01F7/767
Filed: 1980-08-01
Abstract: The anodising tank is connected to at least one cooling tank provided with at least one doser for adding NH3 and/or an NH4- or Na- cpd., so the Al can be crystallised out as a double salt, as described in 2358963. The cooling tank contains a vertical stirrer shaft carrying blades which have outer edges touching the internal surface of the cooling tank. Four inclined stirrer blades are pref. located at intervals of 90 deg. round the stirrer shaft; and the cooler is pref. followed by a filter to which the Al salt sludge and electrolyte are transported. The cooling tank pref. has a polymer foam sheath. In the earlier patent, the salt crystals settle on the wall of the cooling tank and acts as thermal insulation reducing the cooling effect. The present invention uses stirrer blades continuously removing the Al salt from the tank walls.
Patent DE-3034800-A1 (DE)
Title: Pneumatic or hydraulic transport pipe - with accurately aligned welded flange and flanged spigot on middle part
Inventor: ESSER ALEXANDER
IPC: F16L57/06
Filed: 1980-09-16
Abstract: A pipe for hydraulic or pneumatic transport of solids, such as sand, suffers abrasive wear esp. at the junction to other pipes when tolerances convert the laminar to a turbulent flow. The middle part of the pipe is butt welded to flanged spigots in a flush alignment of the inside surfaces. The flange is welded to the spigot subsequently in such a way that the outside flange dia. is truly concentric to the inside pipe dia. This ensures that the flanged spigots have the same service life as the middle parts so that they need not be prematurely replaced when used e.g. for river crossings.
Patent DE-3039062-A1 (DE)
Inventor: DICK GUENTER ING GRAD
IPC: F24S10/75
Filed: 1980-10-16
Abstract: 1. A large surface absorber heat exchange system forming a fence to be used with heat-pumps for heating or cooling buildings, the said system consisting of a plurality of heat-exchange sections affixed to fence posts, and characterized by the individual heat exchange sections having U-shaped or trapezoidal cross-sections with the base surfaces (11), frame surface (12a, b) and bevel edges (13a, b) essentially parallel to sheathing sections (26) of the fence posts (2a, b, c) and to the opposite bevel edge (13b), the base surfaces (11) of the heat exchange sections forming an angle between 5 to 30 degrees with the horizontal, the said heat exchange sections having a tube for the heat exchange medium placed in their control axes.
Patent DE-3039074-A1 (DE)
Title: Control diagram for body-weight record - has calendar with body-weight markers on day by day basis
Inventor: LACH FRIEDRICH
IPC: G09B29/00
Filed: 1980-10-16
Abstract: The chart for use in body weight control allows progress to be plotted over a period. The body weight calendar has the days of successive weeks marked off on a vertical scale and the weight scale horizontally located. A marker is placed at the top indicating ideal weight in kilogrammes. Markers are placed each day to show the variation produced by dieting or exercise. Across the base of the chart a sample calculation of ideal weight is given. This is obtained by subtracting 100 from the height in centimetres to give normal weight and applying a 10 per cent reduction to give ideal weight.
Patent DE-3039442-A1 (DE)
Title: Chemical oxygen generator with simple modular construction - contains individual oxygen plugs insulated from impact and heat
Inventor: ECKSTEIN WOLFGANG
IPC: C01B13/02
Filed: 1980-10-18
Abstract: Chemical O2 generator has a chemical compsn. (I) producing O2 by chemical reaction in a sealed container with an outlet on one side and a starter.
Patent DE-3043771-A1 (DE)
Title: Target game using several balls - has target area positioned at set distance from starting line and consisting of registering device with holding compartments
Inventor: KRUEGER HERBERT
IPC: A63F7/00
Filed: 1980-11-17
Abstract: The target game with balls includes a target positioned at a pre-set distance from a starting line. The target consists of a registering device (1) which contains several holding compartments (2) for the balls positioned next to each other. Each of the holding compartments is a construction unit by itself and several compartments are combined to make up the ball receiving device. A separating edge extending in a straight line is located between any two adjoining holding compartments (2).
Patent DE-3046075-A1 (DE)
Title: Rail for toy railways - has running rail made from metallic profile material and sleeper unit made from bendable thermoplastic material
IPC: A63H19/30
Filed: 1980-12-06
Abstract: The rail (6) is for toy railways. The running rails consist of a metallic profile material and the sleeper units are made from a bendable elastic thermoplastic material with cast on imitations of rail connecting clamps (3,4). The inside of the connecting clamps have locking cams and in addition the sleepers are recessed (9) sufficiently to permit them being easily bent within the rail area and to permit the rail profile to be inserted from above so that the rails are held under tension on the sleeper unit. The recess is smaller than the width of the foot (8) of the rail and is approx. as wide as the web (7) of the rail or smaller. The recess extends from above to close to the rail section base surface.
Patent DE-3048090-A1 (DE)
Title: Torque limiting clutch for drive shaft - has bill bearing ratchets between driven plate and sprung drive plate
Inventor: KILWIN TOM
IPC: F16D7/08
Filed: 1980-12-19
Abstract: The driven flange has a number of recesses to locate the ball bearings with a locating plate secured to the drive shaft to hold the bearings in position. The bearings are further pressed into the recesses by a sprung holder with a series of cup springs. The clutch transmits a set amount of torque after which the balls are displaced from the recesses and the drive slips. At lower torque the balls drop back into the recesses and the drive is reset.
Patent DE-3049252-A1 (DE)
Title: Mine-working roller cutter loader - has motor in trunnion engaged by swivel drive raising and lowering carrier arm
Inventor: KOESTER ROLF
IPC: E21C31/10
Filed: 1980-12-27
Abstract: The roller cutter includes one or more cutting rollers, a raisable and lowerable roller motor-driven carrier arm with trunnion and a gear unit housed in the roller. The roller cutter loader travels on a chain scrape conveyor in a mine. The trunnion is a hollow spindle (6). The drive motor is fastened in it, with the drive shaft (5) coaxial with the swivel axis (4) of the carrier arm (2). The raising and lowering device for the arm is a swivel drive unit (7) engaging the hollow spindle on the outside. This provides optimal momentum distribution in relation to arm swivel.