baber/WOPTO huggingface dataset:
Patent DE-2811127-A1 (DE)
Title: Quality testing device for printed coils - applies resonant voltage of coils operational amplifier whose other input is connected to control voltage source
Inventor: MUELLER HERBERT KRONACH
IPC: G01R27/26
Filed: 1978-03-15
Abstract: The coils is in a printed circuit and is tested by the resonance method. Each coil (S1-S4) is connected through a buffer amplifier (1-3) to a common wobbler (4). Coils not to be tested are short-circuited by diodes (5, 14-16) and a capacitor (6). The resonance voltage from the tested coil is rectified and applied to an adjustable operational amplifier (10). Its threshold, and thus the coil quality, is adjusted by a voltage source (11) connected to its second input. When a certain switching threshold is exceeded or not reached, a visual signal indicates a reject.
Patent DE-2816384-A1 (DE)
Inventor: GELB HERMANN
IPC: F16N13/04
Filed: 1978-04-15
Abstract: The lubricant pump is equipped with a plurality of delivery pistons (1a, 1b) for each of the individual lubricating points of a piston engine. The delivery pistons (1a, 1b) are designed as rotary pistons with bevelled edges (3). The adjusting device comprises the bevelled edge (3) of each delivery piston (1a, 1b), formed as an exponential curve, and a correction curve (22), which is formed on a hollow shaft (11). Both the exponential curve (3) and the correction curve (22) can be rotated by an engine governor. The correction curve (22) influences the angle of rotation of the exponential curve (3). The hydraulic stroke of the delivery piston (1a, 1b) is adjusted by two control processes, independent of one another and running by way of the curves (3, 22). In this way the lubricant delivery is adjusted as a function of the load. <IMAGE>
Patent DE-2818487-A1 (DE)
Title: Detection of discrete frequencies - using phase-locked loop and automatic phase synchronisation of VCO
Inventor: HEGELER WILHELM DIPL PHYS
IPC: H03L7/087
Filed: 1978-04-27
Abstract: A circuit recognising discrete frequencies uses a phase-locked loop contg. a phase comparator, a low pass filter connected to its output and a v.c.o. They enable very rapid correction of the initial phase condition of the loop. The initial loop phase condition is corrected by automatic synchronisation of the phase of the voltage controlled oscillator with that of the input signal. The oscillator phase synchronisation takes place outside the phase-locked loop either before or after the loop and uses the input signal edges.
Patent DE-2825687-A1 (DE)
Title: Folding chair with articulated control lever - has locking system for swivel lever ensuring stable upright position yet easy folding
Inventor: PRINS JOHANNES
IPC: A47C4/24
Filed: 1978-06-12
Abstract: The folding chair has the rear legs (2) beneath the backrest connected to the latter and to the seat frame by an articulated lever (5) which swings through 180 deg. when the chair is unfolded and folded up. In both positions it locks in stop positions which substantially coincide with the axial direction of the rear legs. The lever had detent mechanisms which interact with suitable devices on the legs. The chair can be folded up particularly neatly if the rear leg is longer than the front and if the legs lie parallel on each other in the collapsed position.
Patent DE-2825987-A1 (DE)
Title: Electric detonator cap with dischargeable energy source - which is coupled to ignition element when decoder receives ignition command signal over input wires
Inventor: HEDBERG JOHN BENGT GOERAN
IPC: F42B3/12
Filed: 1978-06-14
Abstract: The electric detonator cap includes an explosive charge (2), an electric ignition device (3) which receives its ignition energy from a dischargeable source (5), and a controllable switch (1). Wires (6, 7) can be connected to an external energy source to charge the internal source (5). A decoder (9) is also connected to the wires (6, 7). When the decoder receives a specific ignition command signal via the wires, it closes the detonation switch (11) via a delay circuit (10).
Patent DE-2837318-A1 (DE)
Title: Solder connection formed by gap in disc - placed between conducting paths on printed circuit board so that solder beads join profiled ends of path
Inventor: ROESER WILHELM DIPL ING
IPC: H05K1/00
Filed: 1978-08-26
Abstract: The solder connection has the ends of the two conducting paths extended laterally so that together they form a disc. The latter has a gap (5) passing across it to separate the two ends of the paths. This insulating gap is bridged by the solder bead which spreads over the entire disc. The gap may be V-shaped, dovetail or zigzag. Any suitable number of conducting paths may be joined together using one bead of solder. The advantage lies in cheapness.
Patent DE-2837510-A1 (DE)
Title: Pulsed-gas stirring of molten metal esp. aluminium - by allowing withdrawn portion of bath to commence return under gravity before pulse is applied
Inventor: DOLSCHENKOV BORIS SERGEEVITSCH
IPC: F27D99/00
Filed: 1978-08-28
Abstract: A portion of molten metal is drawn upwardly from the bath by suction into a tube. Suction is then cut off, and the withdrawn portion commences to fall by gravity, when a compressed gas pulse is applied to the tube to expel the metal. Appts. includes a tube with removable cover and having connected to it a pressurised-gas accumulator and a suction system. A valve system actuated by a float briefly puts the tube interior in communication with the ambient atmos. before discharging a gas pulse through an outlet directed upwardly towards the underside of the cover. The invention is applied to stirring aluminium in large capacity combustion heated reverberatory melting furnaces. The whole of the pulse energy is employed in accelerating the returning metal portion, while interaction of gas and metal is minimised. Melting time can be reduced by 15%.
Patent DE-2837767-A1 (DE)
Title: Game of chance with balls placed on rotating disc - has arrangement allowing balls to roll at random into pockets in ring surrounding disc
Inventor: KAMPEN HANS
IPC: A63F5/02
Filed: 1978-08-30
Abstract: A game of chance consists of a rotatable disc surrounded by a ring (3) with inwardly facing pockets. The height of the disc (1) can be adjusted so that initially its surface lies below the level of the pockets. A number of balls are placed on the surface of the disc and are mixed by spinning the disc. The mixing of the balls is aided by a fixed bar (4) mounted above the disc (1). The disc (1) is then depressed and the balls roll at random into the pockets formed in the ring (3).
Patent DE-2838450-A1 (DE)
Title: Angled plates holder in balustrade type lattice frame - comprises two part hinge with lattice strut acting as hinging axis
IPC: E04F11/18
Filed: 1978-09-04
Abstract: The retainer for fixing plates or panels, sited at angle to each other, to a round strut in a lattice-type frame, is esp. applicable to a balustrade. It is in the form of a hinge (1, 2) with the round strut (7) functioning as hinge axis. One of its two parts is pref. U-shaped and the other T-shaped, with the latter's long shank (4) between the other's two side shank (3, 5), in a common hole passing through all three shanks, and with all their ends (18-20) rounded off parallel to the hole, sides. This can be simultaneously used for two plates, at any angle to each other, without material deformation.
Patent DE-2842646-A1 (DE)
Title: Voltage-controlled oscillator for AM-FM converter - has resonant circuit with capacitor on semiconductor doped substrate, having surface partially covered with thin insulating layer
Inventor: MEUSBURGER GUENTHER DIPL ING
IPC: H03B5/12
Filed: 1978-09-29
Abstract: The oscillator has a resonant circuit containing a capacitor on a substrate (1) of doped semiconducting material. A part of the surface of the substrate (1) is covered with a thin insulating layer (32) on which an electrode (4) is located. An area (2) doped oppositely to the substrate is located on the surface of the substrate and borders the substrate region below the electrode. The electrode is made of a substance with a homogeneously distributed surface resistance. Electrode connections (42, 41) are located at the edges of the electrode.
Patent DE-2905337-A1 (DE)
Title: Tie-bolt for fitting into blind bore - has tapered shaft and mating wedge which buckles laterally to assist wedge action
Inventor: GERHARD ANTON
IPC: F16B13/08
Filed: 1979-02-13
Abstract: A tie-bolt (1) fits into a blind hole (29) in a component (28). Its shaft (7) tapers from a full section at the tip (2) to a half-circle at the head (12), with the tapered space thus left partially filled by a U-sectioned wedge (3). Both shaft and wedge are held together by a domed guide bush (4), fitted over the outer component (31). When the wedge is driven deeper into the hole a cutaway (26), partly along the wedge length, causes it to buckle laterally. This assists the wedge action to jam the assembly in the hole.
Patent DE-2910983-A1 (DE)
Title: Removable expansion-compensating pipe insulation - has concentric tubular layers of insulation with facility for longitudinal movement
Inventor: BAER PAUL
IPC: F16L59/20
Filed: 1979-03-21
Abstract: Along a short length of a pipe (1), the insulation is provided by a succession of concentric tubes (3). These consist of a sleeve (4), with insulating material (5) bonded to its inner face. An air-gap (6) is left between each tube. One end of each tube is fixed at one side or the other alternately to a closing perforated disc (8). The other ends finish short, leaving a gap between them and the discs (8), to allow for expansion of the pipe (1). Clamping rings (9) hold each end of the assembly to the neighbouring solid insulation.
Patent DE-2913479-A1 (DE)
Title: Excavator boom rope stabilising mechanism - comprises rope drum with spiral spring and clamping jaws
Inventor: ROTZLER EBERHARD DIPL ING
IPC: B66D1/02
Filed: 1979-04-04
Abstract: The stabilising mechanism is designed for use with ropes under load on the booms of excavators etc. It comprises a rope drum (1) with spiral spring and clamping jaws (2, 2') on the excavator. All can be accommodated in a single housing (3). A rope guide window (4) can be provided on the top of the housing. There is an operating lever (6). This lever may be used to limit movement of the jaws, its end extending to the top jaw being forked, and attached loosely to the top jaw.
Patent DE-2916933-A1 (DE)
Title: Ultrasonic material testing using water squirting technique - involves several, adjacent, laminar water jets, each controlled by separate phase array
Inventor: LUDWIG WOLFGANG DIPL PHYS DR
IPC: G01N29/28
Filed: 1979-04-26
Abstract: The ultrasonic material testing, combined with squirting technique, has the advantage of adjustable impact angle and focusing zone. In this manner defects, even in relatively inaccessible positions, can be checked. The squirting technique is used for coupling the ultrasonic signal to the tested component. Several closely adjacent, laminar pressurised water jets (4) are used, the individual water jets being controlled by separate ultrasonic oscillators with variably adjustable phase position. The testing ultrasonic head is connected to several high frequency lines (8). It contains a pressurised water pipe (10), the front perforations permitting emission of water jets with a diameter at least half of the used wavelength. The individual jets are spaced by approximately 1mm.
Patent DE-2917255-A1 (DE)
Inventor: HAUPT WALTER DR
IPC: F17C13/12
Filed: 1979-04-27
Abstract: A crack indicator based on a piping system consisting of cold-embrittling plastics pipes imbedded in a gas container insulation. A warning gas is subjected to an excess pressure in the piping system. In the event of a crack or other damage to the insulating material, a leak is produced in the piping system at this point so that warning gas flows out into the tank interior. In this case, an indicator responding to the issuing warning gas produces an alarm signal. The alarm emitter can consist, for example, of an analysis instrument for the specific gas. However, an indicator based on a pressure measuring system which is connected upstream of the piping system and produces an alarm signal when a predetermined pressure difference is exceeded is simpler.
Patent DE-2917844-A1 (DE)
Title: Tube system for carrying cold liquid or gas - has gas absorber in thermal insulation vacuum, esp. for superconducting cable in liq. gas line
Inventor: BECK AUGUST
IPC: F16L59/08
Filed: 1979-05-03
Abstract: The tube system consists of two or more concentric tubes (1, 2) forming a toroidal gap between the containing termal insulation (3) in the form of a vacuum. The thermal insulation is supplemented by fibres or nonwoven fabric that absorbs residual gases and preserves the vacuum and therefore the thermal insulation. The fibres or fabric are embedded between two layers of plastic fabric or are held by a wire mesh or by a perforated metal sheet. The absorbant substance is aluminium oxide. The fibres or fabric are located as close to the inner (low-temp.) tube as possible.
Patent DE-2919656-A1 (DE)
Title: Metered carbon di:oxide injection - by continuous sampling and using analyser to adjust metering valve
Inventor: WIELAND DIETER
IPC: B01F15/00
Filed: 1979-05-16
Abstract: A plant for the continuous control of the injection of carbon dioxide in a liquid such as a beverage is based on an injector with a nozzle fed with the liquid, and a vacuum chamber connected to a carbon dioxide source. A sampling cylinder is connected to an automatic CO2 analyser which controls a metering valve in the carbon dioxide supply. This requires only a small sample to determine to CO2 content. The control quality is so good that the fluctuations of the CO2 content are held within plus-or-minus 0.07-0.08 vol.%.
Patent DE-2920243-A1 (DE)
Title: Energy extracting system from air or water flow - uses vortex creating bladed unit, coupled to turbine and flywheel to drive generator
Inventor: ZAPATA MARTINEZ VALENTIN
IPC: F03D9/00
Filed: 1979-05-18
Abstract: The system is intended for extracting energy from the flow (18) of air or currents in sea or rivers. The energy is converted in a turbine unit (6) or a turbine/diffusor unit. In the latter case the turbine and diffusor are rotating in opposite directions about a common axis. The rotational energy is transmitted to a flywheel (3) coupled (2) to a generator (1). Guide blades (15) which generate a vortex (17), are wedge-shaped to direct the flow into a duct (16) where the vortex (17) and cyclonic flow (19) is created. The contra-rotating turbine and diffusor may be coupled to a common shaft via reversing gearing (5).
Patent DE-2922306-A1 (DE)
Title: Electric arc furnace - has cooling system comprising heat transfer tubes passing through wall and ending in steel components
Inventor: RANDELL STEPHEN WILLIAM
IPC: F27D1/12
Filed: 1979-05-31
Abstract: The arc furnace has carbon or similar wall-cladding blocks and heat transfer tubes pass through its wall. The vapour ends of the tubes join channels formed by slots extending in the side faces of the blocks downwards. External condensation sections of the tubes are connected to heat transfer appts. totally outside the furnace. The vapour ends of the tubes may extend into steel or iron components instead of joining channels. Heat transfer is increased by providing fins inside the tubes which make their inside surfaces as large as possible.
Patent DE-2923193-A1 (DE)
Title: Suction nozzle for vacuum cleaner - has housing with subsidiary air valve consisting of seating, plate and spring
Inventor: WOERWAG EBERHARD
IPC: A47L9/02
Filed: 1979-06-08
Abstract: The suction nozzle (1) for a vacuum cleaner produces a reduction in the vacuum, and enables the head to slide smoothly over the carpet. The suction nozzle (1) has a housing (2) which is inserted by means of a connecting socket to the suction hose. The housing (2) has a subsidiary air valve (4) which has a seating (20) on a valve housing (10), and a valve plate (18) which is loaded by means of a spring (19) onto the valve seating (20). The valve plate (18) is mounted on a pin (11), with adjustment knob (5), and the pressure of the spring (19) is altered by means of this knob (5) which has a scale of markings on it.
Patent DE-2923736-A1 (DE)
Title: Rotary pneumatic actuator with cushioned end positions - has toroidal cylinder contg. piston on segment fixed to central output shaft
Inventor: BINNEN GEORG
IPC: F15B15/12
Filed: 1979-06-12
Abstract: The pneumatic rotary actuator comprises a piston (6) with circular cross-section which is movable between cushioned end positions in a toroidal cylinder (4). The piston is carried by a segment-shaped piston rod (5) rigidly secured to a central output shaft. Projections (12,18) on the piston and piston rod enter corresponding blind bores (10) with seals (13) to provide adjustable cushioning at the ends of the rotary stroke. The piston seal may be by O-ring (7). The piston rod may be integral with the output shaft so that radial forces are transmitted to the shaft.
Patent DE-2928561-A1 (DE)
Title: Simple in-situ balancing system for vehicle wheels - measures acceleration computes positions of balancing weights and indicates their positions
Inventor: HATLAPA ROLF
IPC: G01M1/28
Filed: 1979-07-14
Abstract: Counter-balance or balancing weights are mounted in a circular slot running around the rim of the wheel's hub. The balancing weights can slide along the slot in the rim. A display indicates imbalance in the wheel visually. The imbalance is detected by acceleration detectors connected to electronic circuitry that actuates l.e.d.s to indicate the location of the imbalance. The l.e.d.s are situated in a circle inside and concentric with the slot. An actuated l.e.d. indicates the point along the slot at which a balancing weight has to be placed to counter the imbalance in the wheel.. Wheels can be balanced without removing from the vehicle. No workshop facilities are required to balance the wheel.
Patent DE-2930680-A1 (DE)
Title: Windscreen wiper blade to wiper arm snap-in fixture - has corresponding recess and projection preventing incorrect fitting of different wiper blades
Inventor: BERGER JOSEF
IPC: B60S1/40
Filed: 1979-07-28
Abstract: The windscreen wiper comprises a wiper arm (1), provided with a U-shaped connector end (2), which fits over a correspondingly U-shaped spring bracket (3) of the wiper blade and is connected via a snap-in connection (9,10). To prevent interchanging different left-and right-handed wiper blades, the connector end and the spring bracket are provided with a projection (11) and a corresponding recess (5) respectively, which are positioned to permit only correct assembly. The recess may be arranged in the lateral edge of the end portion (4) of the u-bend in the connector to receive the projection provided at a corresponding position on the bracket.
Patent DE-2931008-A1 (DE)
Title: Multistage catalytic reforming - using gravity-flowing dissimilar catalysts which are regenerated towers associated with their respective reforming reactors
Inventor: SIKONIA JOHN GEORGE
IPC: C10G35/12
Filed: 1979-07-31
Abstract: Hydrocarbonaceous feed stock (I) is catalytically reformed in two reactor systems, each reactor contg. discrete catalytic composites of different activity and stability properties, by (a) reacting (I) with H2 in contact with a composite (comprising a gp. VIII metal, a catalytic metal modifier and a halogen), the catalyst composite moving via gravity flow, (b) reacting the effluent stream from (a) in the second reactor with a catalyst of similar compsn. but of different activity and stability, (c) periodically withdrawing deactivated catalyst from reactors (a) and (b) and regenerating them in separate towers (through which they move by gravity flow) by contact with air halogen and steam and (d) feeding the dried regenerated catalyst composites back to their respective reactors. Used for the catalytic reforming of naphtha boiling range fractions, the principal reactions being endothermic and effected in the vapour phase. The operating efficiency of the process is increased while simultaneously increasing the effective use of the catalytic composite used.
Patent DE-2933247-A1 (DE)
Title: Vulcanisable rubber mixt. having low residual pressure deformation - contains rubber, a silane, polysiloxane and/or poly:silazane, silica filler and crosslinking agent
Inventor: ITOH KUNIO
IPC: C08L33/02
Filed: 1979-08-16
Abstract: Rubber mixt. consists of (a) 100 pts. wt. organic rubber polymer, (b) 0.5-30 pts. wt. of >=1 organic Si material consisting of:(i) an organosilane having formula R'SiX4-p (I) (where R' is 1-10C monovalent hydrocarbyl: X is OH or a hydrolysable gp. and p is 1-3 esp 1 or 2; (ii) an organopolysiloxane having average structural formula R2qYrSiO (4-q-r)/2 (II) (where R2 is monovalent hydrocarbyl; Y is OH or a hydrolysable gp.; q is a + ve integer 1-3; r is 0 or +ve integer 2, provided q + r is 1-3) and average degree of polymerisation (DR) =40 (=30), and/or (iii) an organopolysilazane having average structural formula R3s Si(NH) (4-s)/2 (III) (where R3 is monovalent hydrocarbyl and s is a +ve integer 1-3); (c) 10-200 pts. wt. silica filler and (d) 0.1-10 pts. wt. crosslinking agent. Vulcanised shaped articles have high elasticity and low residual pressure deformation, are stable to heat, oil weathering, swelling and solvents and have good electrical properties and strength. Uses include packaging, caps and coatings, apparatus fittings and supports and oil gaskets.
Patent DE-2935061-A1 (DE)
Title: Electrophoresis plating bath - having several plating stations where the negative pole is connected to bath walls through diodes to prevent local deposition
Inventor: KOHLER HELMUT
IPC: C25D13/22
Filed: 1979-08-30
Abstract: Electrophoretic surface coating esp. lacquering of metal objects consists of a bath with a number of plating stations within it. The bath walls and the objects are connected to the negative pole of the d.c. supply. The negative pole is connected to electrodes and each station is in the form of a dialysis cell. Each object can be subjected to a different voltage. The negative connections between individual cells and the bath walls are interrupted. A connection is made between them via diodes so that the potential on the walls is greater than that in the cells. The system is for use in plating car bodywork components. The system described prevents excessive local deposition by preventing interference between adjoining dialysis cells.
Patent DE-2938128-A1 (DE)
Title: Seed drill feed roller - has spiral grooves and plate at hopper end of same dia.
Inventor: JUNNILA LAURI JOHANNES
IPC: A01C7/16
Filed: 1979-09-20
Abstract: The seed drill feed roller incorporates spiral grooves (12) in the peripheral surface, and has an end plate (11) at the hopper end, of the same diameter (D) as that of the roller. The roller can be of plastic, with chambers formed in the core to allow some resilience. The design gives an even seed flow, and avoids crushing of the seeds.
Patent DE-2943991-A1 (DE)
Title: Ultrasonic steering control for agricultural machines - has two arrays of ultrasonic transmitter-receivers using doppler effect to control steering
Inventor: BRETSCHI JUERGEN DR ING
IPC: G05D1/02
Filed: 1979-10-31
Abstract: The ultrasonic transmitter receiver units (5,5') are set in a triangular array (3) on the centre line of the harvester at the front end. The units are set vertically at a height that approximates to the height of the crop (2). The ultrasonic unit uses a Doppler effect in that there is a frequency shift between the transmitted and received signals. When the centre line of the array is exactly aligned with the edge of the crop (1), no difference exists between the signals from both sides of the array. Any deviation results in a signal difference that is used to control the steering.