baber/WOPTO huggingface dataset:
Patent DE-2653191-A1 (DE)
Title: LED segment display switching stage - operates over different temperature ranges to provide control of switching stage to minimise power loss
Inventor: REINERT GERHARD
IPC: H01L33/00
Filed: 1976-11-23
Abstract: A seven segment light emitting diode (LED) display is driven by CMOS decoder and is coupled to a switching state that operates over two temperature ranges to minimise power loss. The segment LED display (2) is supplied over load resistors (3) from a CMOS decoding circuit. The common output is coupled over a switching transistor (15) controlled by a clock generator circuit (17). The clock generator has two resistors (21, 22) coupled to a bridge responsive to temperature. Depending upon the range, the clock signal duty cycle will change to provide a significant reduction in power loss.
Patent DE-2654791-A1 (DE)
Title: Swimming pool heat pump - has circuit with overflow water sprayed onto evaporator and used for engine cooling system
Inventor: BOETTCHER CLAUS
IPC: F24F5/00
Filed: 1976-12-03
Abstract: The swimming pool (1) includes a heat pump in its heating system. Water is passed through a filter (4) by a pump (3), followed by a condenser (5), a cold compressor (6) and an evaporator (7) with an extraction fan (8). Part of the overflow water is also conveyed by a further pump (9) from its tank (2) through sprays (13) to humidify the air sucked through the evaporator (7). Alternative circuits include a circuit in which water taken from the swimming bath is passed through the heat exchanger of an internal combustion engine, for raising its temperature.
Patent DE-2655679-A1 (DE)
Title: Nickel electrode for the anodic protection of metallic vessels - comprises rod insulated from jacket and short circuited to the vessel
Inventor: NICHAENKO JURIJ JAKOVLEVITSCH
IPC: C23F13/00
Filed: 1976-12-08
Abstract: The electrode for the anodic protection of the inner wall of vessels used for electroless Ni plating baths, comprises a rod with a jacket which is insulated from the rod by a plug of insulating material, and which is short-circuited to the vessel. The surface of the rod at the open end, which comes into contact with the Ni soln., is coated with a Ni-P layer, and is considerably smaller than the internal surface of the vessel. The opposite, closed end of the rod is located inside the jacket. Pref. a liner of insulating material is positioned between jacket and the closed end of the rod. The rod is linked electrically to an electric potential control.
Patent DE-2656230-A1 (DE)
Title: Electrical safety circuit for TV receivers and washing machines - has forward biased rectifier diode connected into DC return line to eliminate fault DC during mains current periods
Inventor: SCHUETTE WERNER
IPC: H02H3/33
Filed: 1976-12-11
Abstract: A safety circuit is for electrical loads, e.g. TV receivers, electronically controlled washing machines, sewing machines etc. supplied from a.c. mains via a fault-current-protection switch. The mains a.c. is rectified by means of a half-wave rectifier, and there is a charging capacitor in parallel with the load. To produce a safety circuit in which smoothed fault d.c. cannot arise, a forward biased rectifier is also connected into the retun line of the d.c. circuit, and thus during each mains current period each fault d.c. arising is reduced to zero.
Patent DE-2658175-A1 (DE)
Title: Glass bulb CRT with inner and outer conductive coatings - has inner coating extending over outer one in bulb neck direction
Inventor: SCHUBERT RUDOLF
IPC: H01J29/96
Filed: 1976-12-22
Abstract: The conductive coatings on the inner and outer side of the cathode-ray tube glass bulb funnel form a capacitor. The inner coating overlaps the outer coating in the direction of the bulb neck and extends inside the same. The overlapping section of the inner coating has a reduced conductivity, at least in an annular partial section. Preferably the overlapping section of the inner coating serves as a voltage feed to the electron gun electrodes. The conductivity of this section is so reduced that a current flow due to voltage flash-over is also sufficiently reduced. The inner coating may be applied by deposition of a paste in the neck region and spread by rotation of the funnel and neck. The reduced conductivity is achieved by lower density of conductive particles.
Patent DE-2711620-A1 (DE)
Title: Hose water level with electric level display - has measuring tubes, each with two electrodes forming capacitor with capacitance dependent on level of liq. (OE 16.4.77)
Inventor: WITTMANN FRANZ
IPC: G01F23/26
Filed: 1977-03-17
Abstract: The liquid level is displayed in two vessels in the form of measuring tubes connected to a hose. Two insulated electrodes (6) are provided in each measuring tube (1). Their length corresponds to the tube measurement range. They form together a capacitor whose capacitance is determined by the liquid level. The two equal or different capacitances are compared and evaluated in a common electronic measurement and amplifying unit (8) connected to an electric display unit (9). The technique depened on the difference between the dielectric constant of the liquid and the air which takes the place of the liquid under low level conditions.
Patent DE-2716700-A1 (DE)
Title: Screwless connecting clamp with adjacent insulating housings - has lids of each housing coupled by flexible strips
Inventor: HOHORST WOLFGANG DIPL ING
IPC: H01R9/24
Filed: 1977-04-15
Abstract: The connecting lamp is intended for electric lines and has several adjacent insulating clamp housings. A contact insert with a clamping spring is inserted in each housing. The latter has a face side contact inserting aperture, closed by a snap-action lid with conductor inserting apertures. The adjacent lids are interconnected by a flexible strip. Preferably a lid chain of several, flexible, adjacent lids carries a series of clamping housings. The strips (15) may be in the form of narrow transverse straps. Longitudinal strip arrangement may be used, extending over the length and/or width of each lid (14). The strips may be curved and may be fitted with recesses, grooves, or similar shapes.
Patent DE-2716808-A1 (DE)
Title: Concentrating solutions by indirect heat exchange - with a cooling medium whose pressure is varied to flex the exchanger walls
Inventor: LINDE WALTER
IPC: B01D9/00
Filed: 1977-04-15
Abstract: The solution to be concentrated enters a housing via a pipe and leaves via another pipe with the aid of an impeller. The cooling medium enters tubular or plate heat exchangers via a pipe (5) and leaves via another pipe. Movement of the exchanger walls is effected by pulsating the cooling medium with a piston driven by an eccentric. The exchanger walls can be periodically warmed. Used for crystallisation. Solutions of widely differing concentrations can be handled with uniform effect. Cavitation, and crystallisation on the heat exchanger walls are prevented.
Patent DE-2717678-A1 (DE)
Title: Subscriber identifier for telephone exchange - allows third subscriber to identify first subscriber connected to wanted second subscriber
Inventor: PRAEGNER SIEGFRIED ING GRAD
IPC: H04Q3/62
Filed: 1977-04-21
Abstract: The subscriber unit identifier is designed for use in telephone exchanges. It allows a third subscriber to identify a first subscriber who is connected to a second subscriber when that third subscriber wishes to connect with the engaged second subscriber. There is a third subscriber unit which searches the data words which are sent via the line; it is designed to find the address of the second subscriber unit. The message word or data word so-found enables the first subscriber to be identified.
Patent DE-2720214-A1 (DE)
Title: Rotary compressor with oil injection - has atomizer nozzles to inject finely distributed oil mist between rotors
Inventor: FUJIWARA MITSURU
IPC: F04C29/02
Filed: 1977-05-05
Abstract: A rotary compressor of the screw or vane has been designed for a more efficient heat exchange between the compressed gas and injected oil so that the adiabatic compression is changed to an isothermal compression with a greatly improved efficiency and a lower input hp required for the compression. This has been achieved by adding to the plane injection nozzle (5) one or two atomiser nozzles (30f, 30m) for the male (7) and female (8) rotor. Each atomiser nozzle has a thin jet through which a stream of oil is squirted against a cross pin so that a fine oil mist is produced. Alternatively two inclined jets can be bored so that the oil stream impinges on each other at one point.
Patent DE-2720918-A1 (DE)
Title: Staple fibre length control device - has radial blade array sensed by pulse generator and pressure roller to derive two signals for performance comparison
Inventor: BUROW BURGHARD ING GRAD
IPC: D01G1/04
Filed: 1977-05-10
Abstract: Cutting control device in staple fibre cutting machines in which a rotary impeller is provided with peripherally spaced, radial cutting blades onto which the filament is laid in helical coils has the impeller associated with a signal generator to produce a pulse for each passing blade and a power input measuring device disposed in a housing and derived from the pressure sensed by a roller contacting the coils on the blades. Signals delivered by the generator and input measuring device are compared with one another and also with reference signals. Monitoring of the state of knives insures cutting of staple fibre of uniform length. Jamming of cutters and breaking of the latter is prevented.
Patent DE-2726531-A1 (DE)
Title: Concentrating solar heat collector - with parabolic structure for reflecting glass strips around absorber tubes
Inventor: POELL MARTIN
IPC: F24S23/74
Filed: 1977-06-13
Abstract: The absorber tubes are surrounded by a parabolic structure with longitudinal grooves into which silvered glass strips are inserted as reflectors. The pref. size is 0.5 - 3 cm wide, 15 - 40 cm long and 0.3 - 2mm thick. The glass strips are fixed by an adhesive on the basis of silicone rubber, or acrylic or epoxy resins. A carrier foil of polyethylene or polypropylene is pref. used. The solar heat collector has a simple design, high reflectivity, good mechanical properties, and resistance to weathering and ageing.
Patent DE-2727287-A1 (DE)
Title: Sheet bending machine with corrugated gripping elements - employs swinging action for elements until required bend angle is obtained (SW 11.7.77)
Inventor: NAESLUND GUSTAV
IPC: B21D11/20
Filed: 1977-06-16
Abstract: A sheet folding or bending machine has the surface of the bend stamped at the bottom along a straight line at right angles to its length, made radially to a parallel shaft on the same side of the sheet. The suspension elements are spaced closely together before the start of this stamping action, with corrugations which interlock so as to allow the inside of the sheet to bend. This process is repeated until the required bending angle is obtained, and the sheet is released each time by swinging the suspension elements through a predetermined angle. This angle is a sub-multiple of the bend angle required.
Patent DE-2728752-A1 (DE)
Title: Heater control for car - includes control balance lever to combine temperature setting with measured level in car interior
Inventor: KOELLE ERWIN
IPC: G05D23/12
Filed: 1977-06-25
Abstract: The modified heater control for the car interior has an input control (22) and a temperature monitor (20) with both controls linked to an input lever (23) for the heat flow valve (15). The throughput of the heater valve is determined by the difference in the required and measured temperatures. The system provides a fast and responsive heat control independent of the outside temperature and able to cope with the different heating demands as a vehicle changes its speed in traffic.
Patent DE-2731755-A1 (DE)
Title: Separator for entrained droplets and solids in gas streams - having central cylindrical filter with cylindrical housing inside which a spiral motion is induced to give centrifugal effect sepn.
Inventor: SCHOENEBORN AXEL
IPC: B01D50/00
Filed: 1977-07-14
Abstract: Air and process gas streams are purified by removing very fine liquid and solid droplets or particles. This is done in a housing with gas inlet and outlet having a centrally mounted cylindrical filter with internal supports and baffles. The arrangement of the gas inlet and outlet lines and the baffles is designed to induce a rotational motion in the gas, the radial velocity of which should at no point be 1 m/sec. The outer surface of the central filter is as smooth as possible. The pore size of the filter is pref. 5-150 mu m. Both housing and filter are pref. of polypropylene. In the presence of liq. droplets, the housing can have a liq. run-off branch. Liq. can be deliberately sprayed into the inlet gas duct. Used to remove droplets and particles from air and process gas streams. The filter gives a high degree of sepn. and a continuous self-cleaning action, removing the finest particles and droplets.
Patent DE-2732309-A1 (DE)
Title: Automatic arc furnace supply circuit - regulates arc impedance by varying electrode position to keep arc power constant
Inventor: SCHUBERT MANFRED ING GRAD
IPC: H05B7/148
Filed: 1977-07-16
Abstract: The supply circuit, is used to feed an arc furnace (1). The circuit regulates arc impedance by varying the position of the electrodes in accordance with a control signal derived from the supply or the arc voltage. The control signal is chosen so that the change in arc impedance leads to constant arc power. When the supply or arc voltage drops below its rated value or rises above it by a specified amount, the control signal alters the arc impedance to keep the arc power constant. Inequalities of electrode loading are evened out by this system.
Patent DE-2737817-A1 (DE)
Title: Strip material coiling system - has three spring-loaded rollers which swing or slide in response to increasing coil dia.
Inventor: WEISS RUDOLF
IPC: B65H18/20
Filed: 1977-08-22
Abstract: Coiler uses three or more winding rollers (1-4) parallel to the coil axis. The rollers are mounted on swinging levers (1a-4a) or sliding in guides, and are spring-loaded. The rollers are so coupled together that they swing or slide for the same distance in relation to the coil, the coiling circle (6) formed by them increasing with the coil diameter.
Patent DE-2754052-A1 (DE)
Title: Automatic focussing mechanism for camera - uses long base rangefinder and two signal generators which control rangefinder mirror movement and taking lens drive
Inventor: KAKUKAWA MASATOSHI
IPC: G02B7/30
Filed: 1977-12-05
Abstract: A camera automatic focussing unit uses a long base rangefinder principle, one mirror being fixed and the other movable on an axis. The system uses two drive mechanisms one to drive the rangefinder mirror (2) and the second to drive the camera's taking lens. The system also contains two signal generators for determining the subject distance and transferring the information to the lens. The first signal generator operates the rangefinder and confirms correct focus when both the fixed (1) and movable (2) mirrors receive equal proportions of light (9a, 9b) reflected from the subject into the light receiving network (11a, 11b).
Patent DE-2754218-A1 (DE)
Title: Floating floor cement used with underfloor heating - contains small metal pieces distributed in it for promoting good heat conductivity
Inventor: STUPPY GEORG
IPC: E04F15/12
Filed: 1977-12-06
Abstract: The floor cement layer (5) has an admixture of small metal pieces (6) distributed in it, pref. in the form of chips. Such parts can be introduced with distribution in a total of at least five parts by volume, at the dry mixing stage. Heat conductivity in floor finishes is enhanced, making this suitable for floors with inlaid heating pipes. Typically the metal used in waste material from machining shops etc.
Patent DE-2757029-A1 (DE)
Title: Circuit board prodn. by tracing pattern on substrate with ink - contg. metal nuclei and metallising in chemical copper plating bath
Inventor: HERRMANN GUENTHER DR ING
IPC: H05K3/12
Filed: 1977-12-21
Abstract: Simplified prodn. of a circuit board, consisting of an electrically insulating substrate, based on thermoplastics, paper-reinforced phenolic resin laminate or glass fabric resinforced epoxy resin laminate, with conductor tracks formed on one or both sides by the additive process, involves first tracing the intended pattern on the substrate which is provided with adhesion promoter, using an ink contg. Pd, Cu or Ag nuclei and then metallising in a chemical Cu plating bath. Single boards can be made and/or altered easily.
Patent DE-2807279-A1 (DE)
Title: Heel attachment for fixing ski boot to ski - has moulded bosses which are radially expanded by fixing screws
Inventor: SCHMIDT MANFRED
IPC: A63C9/20
Filed: 1978-02-21
Abstract: The heel of a ski-boot is fixed to the ski by means of a plastics moulding which engages a groove in the heel attachment. The plastics moulding (5) is in the form of an inverted V (51) with outward extending flanges. These flanges have mouled-on bosses (6) with tapered holes (8). The bosses (6) fit into holes (7) in the ski (1). Countersunk screws are then screwed into the tapered holes (8) causing the bosses (6) to expand radially and exert a firm grip on the surface of the holes (6). To increase the strength of the grip the bosses (6) have serrated surfaces.
Patent DE-2810729-A1 (DE)
Title: Tuner with variable inductivity coils - has annular connector with clamp for metal core and fastener for pushbutton coupling of variometer coil to screening housing
Inventor: FISCHER GUENTER
IPC: H01F21/06
Filed: 1978-03-13
Abstract: The tuner is fitted with variometers whose coils are fixed in a screening housing. The tubular coil former are fitted with an envelope core. A flexible, resilient, annular connecting element for the envelope core has a clamping device for this core onto the coil former, as well as a fastening system for connecting the prefabricated variometer coil with the screening housing, the system being of a press-button type. Preferably the clamping device is in the form of a middle bore, tapering towards the connecting element side, away from the envelope core. The smaller diameter of the bore is still smaller than the tubular end of the inserted end section of the coilformer. The connecting element may have a hollow cylindrical centering lug, penetrating into the envelope core.
Patent DE-2812231-A1 (DE)
Title: Washing machine water level controlling device - has level setting member with electric signals applied to comparator circuit to control corresp. valves
Inventor: SCHEER ERICH ING GRAD
IPC: G01D5/165
Filed: 1978-03-21
Abstract: Device for automatically controlling required water level in drums of washing machines or dishwashers, has a water level setting member which is displaceable mechanically and whose position can be converted into an electric signal by an electric transducer. The converted signal is applied to the first input of a comparator circuit of an electric or electronic control circuit, whereby the other input of the comparator is marked by the signal corresp. to the converted signal by the programmer. The comparator has an output which supplied a continuous signal representing the relationship between the two signals to the comparator circuit inputs. Relationship is expressed by a differential signal whose positive or negative valve is used to control the outlet or inlet valves which are closed when there is coincidence.
Patent DE-2817429-A1 (DE)
Title: Driver controlled road surfacing machine - has seat support behind worm gear conveyor below top edge of bunker
Inventor: BERGMANN HERMANN
IPC: E01C19/48
Filed: 1978-04-21
Abstract: The support (6) for the driving seat, on a road surface laying machine, with supply bunker, conveyor distributor worm gear and vibrator beam, is sited behind the worm gear (3), with its top below the top edge of the bunker (1). The support can be fitted with a parallelogram rod system which supports the seat itself. The vertical rods preferably carry stops to limit sideways slope, and serve as hydraulic or pneumatic shock-absorbers. With the seat situated at the rear, and not above the machine, the driver can effectively control operation of the distributor worm gear and vibrator beam, and the whole can be kept in sight.
Patent DE-2820154-A1 (DE)
Title: Electronic synchronisation switch - has outer cylinder carrying phototransistors scanned by rotating slit light source
Inventor: FREI HANS-JOACHIM
IPC: G01D5/347
Filed: 1978-05-09
Abstract: The switch synchronises an externally driven tape or strip feed mechanism with following press, stamp, shears etc., in tape or strip processing mills. It is coupled with a rotating shaft and delivers a signal corresponding to the shaft angular position. It has phototransistors (4) mounted in a matrix on the surface of a stationary outer hollow cylinder (3), and an axis slot-like light source inside the outer cylinder (3) rotating with the shaft (2) and scanning the phototransistors (4).
Patent DE-2820521-A1 (DE)
Title: Continuous alcohol prodn. by catalytic transesterification - using distillation column as reactor, esp. for diol prodn.
Inventor: HARTIG JUERGEN DIPL CHEM DR
IPC: C07C67/03
Filed: 1978-05-11
Abstract: Prepn. of alcohols (I) by catalytic transesterification, where (I) has a higher b.pt. than the reactant alcohol (Ia) (and opt. than the ester components), comprises supplying the feed ester, excess (Ia) and catalyst to the upper part of a distillation column, then recovering reaction prods. from the bottom or top of the column. Pref. where the catalyst is a solid it may be used as column packing. The method is esp. for making diols from corresp. esters by reaction with 1-3C monovalent alcohols, specifically prodn. of 1,4-butanediol or 1,4-butenediol from corresp. acetates and methanol. Process can be operated continuously.
Patent DE-2831715-A1 (DE)
Title: Composite door for large rooms or halls - comprising transparent or translucent plastics panels in frames forming superposed, mutually engaging, sections
Inventor: BUTZBACH ARNOLD
IPC: E06B3/66
Filed: 1978-07-19
Abstract: Door for relatively large rooms such as a hall, is composed of several sections or leaves which are superposed in closed position and engage one another. Each leaf consists of a frame surrounding transparent or translucent plate which has a marginal groove into which a holding flange of the frame engages. The width of the groove is equal to that of the flange. A sealing strip is fitted into the groove. The component leaves may be made of glass-fibre-reinforced plastics, e.g. acrylic resin.
Patent DE-2834013-A1 (DE)
Title: Sprinkler used in irrigation system - uses water jet deflection surface with steep edge
Inventor: LOPIC FRANZ
IPC: B05B3/04
Filed: 1978-08-03
Abstract: The sprinkler has a pivoted nozzle, and a hammer element, which is swivelled by a spring, and in turn causes an impulse-like swivelling of the nozzle. The hammer in turn is deflected in impulses by the water jet from the nozzle. It has an inclined and/or arched jet deflection surface, and a jet divider in front of it. At its outlet region, the deflection surface (20) has a narrow edge section (29), which is steep relative to the longitudinal direction of the hammer, e.g. the two enclose an angle of 75-100 deg. The hammer pivot (2), the hammer stops, the nozzle (15), and the water feed are part of an integral pivoted synthetic housing.