baber/WOPTO huggingface dataset:
Patent DE-2625036-A1 (DE)
Title: Regulated mains power pack with phase:shift correction - has multi-loop control system with proportional differential action
Inventor: POPPINGER HERBERT
IPC: H02M3/156
Filed: 1976-06-03
Abstract: The regulated mains power supply with phase-shift correction comprises a rectifier (1) with mains input (2) whose output is connected to a controlled switch (4). The switch is followed by an L-C low-pass filter (6, 7) bridged by a diode (8). The load (10) is connected across the filter output. The output is taken to an adder (13) having a reference input (15) and whose output is taken to a PI controller (12). The controller output is taken to an adder (16) which has an input taken from the filter input (18) via a smoothing circuit or integrator (17) having a first-order phase-shift. The adder output is taken to a proportional controller (19). The controller output drives the switch (4). The multi-loop control system provides an optimum phase margin of +90 deg. with which to compensate the phase-shift due to the low-pass filter.
Patent DE-2634579-A1 (DE)
Title: Warning unit for frost and slippery ice - has vessel filled with water on top of which light coloured liq. immiscible with water is placed
Inventor: FUELLER FERDINAND
IPC: E01F9/40
Filed: 1976-07-31
Abstract: The device signals the freezing point in order to warn and inform subscribers on roads, motorways, bridges. A hollow chamber of glass or other solid material is partly filled with water in its lower part (1) widening upwards. A coloured liquid (2) is not miscible with water, lighter than water and with a freezing point lower plan the lowest temp. locally occurring, is placed on top of the water. The middle section (3) of the chamber has a large surface and thin, transparent walls. It forms the actual warning surface (5/5a). It connects with the top section (4) widening at the top. It serves as an expansion chamber, and has a hole at the top for filling the liquids, for their evacuation and sealing. When water freezes and expands, it pushes the light coloured liquid (2) from the middle section (3).
Patent DE-2637631-A1 (DE)
Title: Control circuit for copy milling machine - has vector analysers which correct deviation from true position
Inventor: FLOETER WILFRIED DIPL ING
IPC: B23Q35/123
Filed: 1976-08-20
Abstract: The electric circuit is for controlling a copying milling machine and includes a first vector analyser. This generates from the three output voltages of the sensing system a voltage proportional to the cosine component of the angular direction of each spatial displacement vector. A second vector analyser generates signals proportional to the velocity of the sensing probe. A computer circuit is used in the second analyser which arranges that the required value is the tangent of the angle of displacement and this is compared with the actual value. The actual value is calculated by dividing the velocity along the 'y' axis by the velocity along the 'x' axis.
Patent DE-2651617-A1 (DE)
Title: Medicinal and cosmetic topical preparations - contg. extracts of the seaweeds Chondrus crispus or Gigartina mamillosa
Inventor: SCHMIDT-BRUCKNER HEINRICH
IPC: A61K36/28
Filed: 1976-11-12
Abstract: Prodn. of medicaments and cosmetics in the form of ointments, creams and gels from maceration decoctions of unbleached crude drugs of Gigartina mamillosa and Chondrus arispus, together with appropriate additives, is new. For cosmetic purposes, the preparations can be used in facemasks, general body-care, creams, baths, etc. The preparations are active topically and also penetrate deep under the skin and exert a therapeutic effect. The preparations use readily available raw materials and are technically simple to produce.
Patent DE-2652477-A1 (DE)
Title: Pressure control for tape film splicer - with sprung roller to press tape around film to give even pressure and avoid air bubbles
Inventor: HRABIK HEINRICH ING
IPC: G03D15/04
Filed: 1976-11-18
Abstract: The film splicer has a base plate (1) on which is pivoted the support plate (4) on which the two film ends are positioned with butting edges. The plate is pivoted about an axis parallel to the film direction so that the splicing tape can be taken round both sides of the join. A cut-out (9) in the middle of the support plate allows the pressure roller (12) to pass through the plate and press down the tape evenly. The pressure roller is spring loaded to run over the base plate. It provides an even pressure on the splicing tape and eliminates any air bubbles. The film ends are accurately joined so that they do not snag in the projector.
Patent DE-2657637-A1 (DE)
Title: Bulk material batch extraction system - has sealing plug held against seat at bottom of vessel
Inventor: KANICS ANDRAS DIPL ING
IPC: B65D90/62
Filed: 1976-12-20
Abstract: The system extracts free-flowing bulk material, viscous deposits, sludge etc. in batches from a storage vessel, via a bottom outlet. The material to be extracted is supported by the central area of a sealing plug (5), whose edge is held against a seat formed at the bottom of the vessel (12). As the plug is opened, the material is caused for a set period to flow past the seat at the level of the latter. It is then allowed to slide out freely over the edge of the plug, dependent on its flow angle. The free cross-section for the outflow of material can be steadily increased.
Patent DE-2701191-A1 (DE)
Title: Winding reel for sheet steel in band form - has adjustable set of outer shells for winding prong to alter inner dia. of wound coils
Inventor: FREI HANS-JOACHIM
IPC: B21C47/32
Filed: 1977-01-13
Abstract: Winding reel for a band conveyor installation esp. for winding sheet steel in band form, has a winding prong which has a fixed connection to a drive shaft. The winding prong is formed as a hollow cylinder the outer coating of which is subdivided into two shells capable of swivel movement around a swivel axis lying parallel to the rotating axis of the prong between a splayed and closed positions. The two shells complement each other over the whole circumference of the cylinder outer covering except for a small opening slot permitting the swivel movement. This arrangement facilitates the sideways removal of wound steel band coils regardless of the interior dia. required.
Patent DE-2704452-A1 (DE)
Title: Electric toy overhead power supply system - employs connector strips bent around conductor one end and around crossing member other end
Inventor: KILIAN HELMUT
IPC: A63H19/26
Filed: 1977-02-03
Abstract: An overhead power supply system for an electrically driven toy has combined conductors and hangers (2, 4) suspended from masts. These conductors have parallel upper and lower longitudinal strips, connected by uprights. The longitudinal strips of one member (2) fit into slots in the other members (4) where they cross. A good joint is made by attaching connecting strips (5) at these crossing points. Each strip has tongues (6, 7) each end. One set of tongues (6) is bent over one member (4), and the other set (7) is bent over the crossing member (2).
Patent DE-2706223-A1 (DE)
Title: Small switching times measurement on integrated circuits - employs function generator connected to electron scan microscope beam deflector and to oscillograph
Inventor: HIEKE EDUARD DIPL ING DR
IPC: G01R29/02
Filed: 1977-02-14
Abstract: The function generator (2) generates scanning pulses to produce a stroboscopic pattern. One lot of these scanning pulses are adjusted in time so that a first region of the object is imaged "light" or "dark" by the electron-scan microscope. A second lot of scanning pulses is then adjusted so that a second region of the object is imaged with a delay "light" or "dark". The circuit delay time between the two regions is given by the time shift between the two lots of pulses. To measure the potential curve in time on each desired region of the circuit to be examined, the position in time of the first lot of pulses generated by the function generator on the line (21) is varied in time.
Patent DE-2707394-A1 (DE)
Title: Suction nozzle for grass mower - has telescopic pivot arms operated by fluid actuated piston-cylinder units to extend tube with flexible and rigid sections
Inventor: GRUEBLER WALTER
IPC: A01D34/86
Filed: 1977-02-21
Abstract: The sideways swivelable suction nozzle for a grass mower comprises a nozzle tube, which is flexible in part sections, a boom which runs at the side near the nozzle tube and can be pivoted about a joint and at least two fluid operated setting elements which run near the tube and are fitted to the two pivot arms of the boom. The outer pivot arm carries a mowing tool and the outer end of the tube is connected to a grass section orifice. The other end is connected with the inlet of a suction blower on the vehicle. The tube has two rigid sections each of which forms a supporting component of the inner and outer pivot arm. The two pivot arms (8, 9) and the two rigid tube sections (4, 5) are telescopic. A fluid-operated piston-cylinder unit (15, 16) is fitted to each of the pivot arms (8, 9).
Patent DE-2717895-A1 (DE)
Title: Cine or still camera back - is assembled with heat-welded units and mounted onto camera with pivot and bearing surface
Inventor: ETTISCHER HELMUT
IPC: G03B17/02
Filed: 1977-04-22
Abstract: A still or cine camera back is easily assembled and mounted on the camera and is accurate in its alignment and operation. The camera uses a film cassette and the injection moulded plastic camera back holds it in correct register in the camera housing. The back is equipped with a spring-pressure plate bearing against the cassette. The camera back is hinged on a pivot which is channeled to restrict camera back swing to less than 180 deg. but can be easily mounted to the camera when the opening angle is only a few degrees. When the fully open back is not demountable. The strain of the opened back is borne by the camera housing not the hinge. Camera back fittings are easily fitted and then heat welded or rivetted.
Patent DE-2718483-A1 (DE)
Title: Floating caliper disc brake - has resilient damping insert between guide face portions not in engagement
Inventor: BURGDORF JOCHEN DIPL ING
IPC: F16D55/226
Filed: 1977-04-26
Abstract: The floating calliper disc brake has the caliper sliding in a guide in the mounting, the guide faces being thrust against each other by an external spring to take up any play. A damping insert (16, 17) is fitted between portions of the guide faces not in engagement with each other (8, 9, 12, 13). This is typically of elastomer material and can be a cap, fitting round a protrusion on one of the faces extending into a groove in the other, or a filler piece inserted in a recess in one of the faces. There can be a clearance between the insert and the guide face sliding in relation to it, less than the clearance between the portions of the faces not in engagement.
Patent DE-2727260-A1 (DE)
Title: Rapid cooling for hollow plastic extrusions - with extra water cooling between extruder head and main cooler
Inventor: BANDERA LUIGI
IPC: B29C48/90
Filed: 1977-06-16
Abstract: Hollow thermoplastic extruded sections, and partic. tubing which, while still hot, is passed through a cooling control die, is dimensionally controlled in an intermediate stage where the external pressure is at least equal to the internal pressure. Appts. comprises an extruder head from which extruded tubing passes immediately through to an annular chamber having control rings. A pipe feeds cooling water into the chamber so that it both pressurises and cools the tubing. A further control device surrounds the extrusion which enters it through a ring and emerges through another ring. Prods. rate is high and quality of product is excellent.
Patent DE-2735005-A1 (DE)
Title: Sheet metal strip roof covering - has overlapping folded edges for drainage and impressions providing tiled effect
Inventor: CHAPMAN PETER E
IPC: E04D3/366
Filed: 1977-08-03
Abstract: The roof covering is made up from steel or other sheet metal strips (1) extending over roof length, with a pre-selected longitudinal edge forming the bottom edge of the finished roof. This edge is folded in such a way as to accommodate the longitudinal edge of an adjacent strip, providing an overlap point, where water running off the roof cannot gather. There are a number of impressed sections (9) over the length of the strip, imparting a tile-type exterior finish. Both edges (2, 3) may be folded in described pref. with a doubled fold. Transverse edges (4) may be interconnected by a connecting strips.
Patent DE-2738721-A1 (DE)
Title: Amino-tetra:hydro-naphthalene prodn. - by catalytic hydrogenation of di:amino-naphthalene, for use in syntheses of azine-, oxazine-, thiazine- and azo-dyes
Inventor: ZIEMANN HEINZ DR
IPC: C07C209/72
Filed: 1977-08-27
Abstract: Prepn. of 5-Amino-1,2,3,4-tetrahydronaphthalene (5-aminotetralin) (I): comprises reacting a diaminonaphthalene (II) (contg. one NH2 gp. in alpha-position in each ring) with H2 at 125-250 degrees C under elevated press. (pref. 10-250 atm.) in presence of a catalyst.
Patent DE-2739079-A1 (DE)
Title: Multiple tunnel construction system - uses intermediate wall of pilot tunnel to support and guide measuring ring for adjacent tunnel
IPC: E21D9/06
Filed: 1977-08-30
Abstract: The multiple section tunnel is made by excavating a tunnel in a conventional manner, than excavating a second tunnel alongside the first so that it breaks through the material remaining between. The tunnelling shield used for the second tunnel employs a measuring ring which is supported and guided by the concrete lining of the first tunnel. This lining has a recess along top and bottom, with horizontal and vertical sides forming locating faces for sliders or rollers projecting from the measuring ring. The tunnelling shield advances in steps, guided by the intermediate wall between the tunnels and travelling on slides or rollers, or may travel on rails. Three sections can be combined in a similar manner.
Patent DE-2740641-A1 (DE)
Title: Mobile shuttering or canopy for tunnels and headings - is frame with ribs and struts welded to shell inside
Inventor: SEIZ RUDOLF DIPL ING
IPC: E21D11/10
Filed: 1977-09-09
Abstract: Crown support and hinged splay sides carries on roller or wheel legs on the floor rails has transverse stiffeners on the sides and crown parts. The supporting frame comprises wide stay angle ribs spaced out along the length and welded to the sheet shell inside, and connected by struts welded to the rib stays lengthways in the framework. The struts, consist of V-channels equal to stay height on the ribs. The channel leg pointing outward is also directly welded to the shell on the inside. The frame structure presents on orthotropic continuum carried only at the ends by a pair of top mounted travelling legs.
Patent DE-2743322-A1 (DE)
Title: Furniture hinge of channel cross=section - is held by spring ratchet clip on holding plate
Inventor: SCHNELLE MANFRED
IPC: E05D5/02
Filed: 1977-09-27
Abstract: Furniture hinge has channel cross section arm held on the furniture. The hinge arm is fitted by pushing alone on its mounting and it is capable of carrying door weight. Between the flanges (3, 4) of the hinge arm (2) is fitted a channel shaped clip (7) whose flanges (8, 9) have ratchet ribs (15) at free edges. These ribs engage with the hooking faces on the base or adjusting plate (16, 17). The ratchet clip is held by screw (12) on the hinge arm.
Patent DE-2747341-A1 (DE)
Title: Line deflection circuit with reduced distortion due to white loading - couples voltage dependent on beam current into deflection current path
Inventor: POLLAK ALFRED
IPC: H04N3/16
Filed: 1977-10-21
Abstract: The line deflection circuit is designed to reduce the interference to deflection when white areas appear briefly on the screen. An S-correction capacitor is in series with the deflection coil. A voltage dependent on the tube's (11) beam current (15) is coupled into the path along which the deflection current (ia) flows. This voltage is obtained either from the tube's grounded screen (13) or from one end of the eht multiplier (10).
Patent DE-2748117-A1 (DE)
Title: Foamed synthetic leather prodn. - by passing carrier contg. layer of foamable plastic, esp. polyurethane, through calibration appts.
Inventor: DOMINIK MAX DIPL CHEM DR
IPC: D06N3/00
Filed: 1977-10-27
Abstract: Prodn. of foamed synthetic leather comprises applying a foamable plastics layer to a carrier material (e.g. fabric) then passing through a calibration device which determines the total thickness of the synthetic leather. During passage the compsn. is foamed, esp. at a heat-treatment station. Pref. the plastic is a polyurethane, esp. a two-component polyurethane integral foam mixt. The use of solvents which have to be evaporated is avoided so energy costs are reduced and less equipment is needed.
Patent DE-2758617-A1 (DE)
Title: Coloured plastics spectacle frame prodn. - by die cutting plastics sheets to produce blanks and overlaying with die cut sheets
Inventor: PETE HERBERT DIPL ING DR
IPC: B29D12/02
Filed: 1977-12-29
Abstract: Coloured or ornamental spectacle frames are produced from thermoplastics sheets by first die-cutting the blanks of the frames in transparent or translucent sheets, coating the die-cut sheets with colour or ornaments, overlaying the coloured or ornamented sheets with a further die-cut thermoplastic sheet and then finishing the frames from the die-cut blanks in a known manner. Pref. the thermoplastics sheets are extruded and the die-cutting of the frame blanks is effected whilst the sheets are still warm. Colouring or ornamenting is effected with the aid patterned or coloured foil, the foil being overlaid by a further die-cut sheet and bonded to the sheets by heat or adhesives. Up to 90% of expensive waste material is recycled for re-use for the same purpose as it is not contaminated with colouring or ornamenting material.
Patent DE-2758737-A1 (DE)
Title: Heat pump unit drive - with main medium and cooling medium flow simultaneously supplying heat within evaporator for exchange
Inventor: KIRN HERBERT ING GRAD
IPC: F25B30/06
Filed: 1977-12-29
Abstract: The heat pump has a cooling medium cycle with compressor, liquefier, throttle and evaporator, to withdraw heat from a medium flow. Using a common heat exchanger (4-6), the cooling medium flow within the evaporator (4), coming from the throttle (3), is simultaneously supplied with heat from the cooling medium flow supplied to the throttle, and from the main medium flow. The cooling medium flow coming from the throttle flows in reverse current past the cooling medium flow into the throttle. The main medium flows in reverse current past the cooling medium flow coming from the throttle.
Patent DE-2802400-A1 (DE)
Title: Mine ventilation system with flexible ducts - uses impregnated woven material, with ends secured by longitudinal support strips
Inventor: LACANT ANGELIKA
IPC: E21F1/04
Filed: 1978-01-20
Abstract: The ventilation system for a mine uses ducts (2) made from woven material (3) impregnated on at least one side. The ducts are seamless and flexible, and incorporate strips (9, 8) top and bottom for attaching respectively suspension fittings (12) and lower anchorage devices. These strips are integrally woven with the duct material, and their ends are left loose so that they can overlap with similar ends on an adjoining duct section. At a joint, these ends overlap, and a strip (17) along this region is covered with a substance to form a good seal. At the ends, there are further short strips (28) each side for forming a connection.
Patent DE-2803817-A1 (DE)
Title: Engine oil regeneration - by paper filter, activated carbon and bleaching agent
Inventor: KRAUSE HANS PROF DR
IPC: B01D27/00
Filed: 1978-01-28
Abstract: Oil from internal combustion engines is regenerated by passing it through a casing with a cylindrical filter element, esp. one made of paper. In addn., a second chamber through which the oil flow passes and which is pref. arranged downstream of the filter element contains a bleaching agent for the oil. The new device has a high regeneration efficiency. It not only filters all particles of dirt and abraded material, but it also counteracts the blackening of the oil by bleaching.
Patent DE-2808084-A1 (DE)
Title: Overvoltage protection for power=pack voltage dropper - has first transistor switched on by rise in voltage and switching off second transistor to block output
Inventor: SONNTAG FRITZ DIPL ING
IPC: G05F1/571
Filed: 1978-02-24
Abstract: The excess voltage monitor is typically for power supplies for electronic modules where the supply voltage has to be stepped down from a common d.c. feeder. A potential divider (R1, R2) is connected across the supply (UB) with the common point joined to the base of a transistor (T1). The emitter is connected to one converter (U) output terminal and the collector to the base of a second transistor (T2) in series with the converter output. The second transistor is normally conducting. A rise in voltage turns the first transistor on, thereby turning off the second and interrupting the converter output. Additional resistors (R3, R4) are assigned to the load coupling terminals.
Patent DE-2810138-A1 (DE)
Title: Temperature protection vessel for measuring instrument - with interior useful space surrounded by low heat conductivity material
Inventor: EMSCHERMANN HANS H
IPC: G12B17/06
Filed: 1978-03-09
Abstract: Parent patent described a temp. protection vessel for a measuring set-up in which a water flask in in thermal contact with a protection space contg. a Dewar flask. The measuring set-up is arranged inside the useful space of the Dewar flask. To replace the expensive flask, it is replaced by heat insulating devices which achieve the desired high thermal resistance by using materials of low heat conductivity. The temp. in the useful space and that of the measuring set-up are always lower than the ambient temp. Pref. these spaces are made vapour tight to prevent condensation.
Patent DE-2812672-A1 (DE)
Title: 1-Acetyl-2,2-di:methyl-3-di:halovinyl-cyclopropane carboxylic ester - prepd. by UV irradiation of 2,4,4-tri:methyl-5-di:halovinyl-4,5-di:hydro-furan-3-carboxylic acid ester and used as insecticide precursor
Inventor: SCHMIDT HANS-GEORG DIPL CHEM D
IPC: C07D307/30
Filed: 1978-03-23
Abstract: Prepn. of dihalovinylcyclopropane-carboxylic acid esters of formula (I) comprises conversion of a novel dihalovinyl-dihydrofuran of formula (II) by illumination pref. using UV or UV-contg. light of wavelength >200 nm in the liq. or gaseous phase: (where R1 are opt. branched alkyl (pref. 1-8C) and X is Cl or Br). 2,2,5-Trimethyl-3-carbalkoxy-4-(beta, beta-dihalovinyl)-4,5-dihydro-furans of formula (VII) are new: (I) are precursors for synthetic pyrethroid insecticides. (II) and (VII) are intermediates. Compared with known processes (DT2606635 and DT2649856), the present invention gives (I) in gold yields with only small amts. of undesirable monomer and polymer formation. The starting cpds. (II) are readily prepd. and (II) is obtd. by an industrially economic process.
Patent DE-2813537-A1 (DE)
Title: Safety mains plug connector - has pull-out device which rest against socket and facilitates plug removal by lever action
Inventor: APPEL WOLFGANG
IPC: H01R13/633
Filed: 1978-03-29
Abstract: The plug connector is intended to facilities easy removal from the socket. For this purpose a pull-out lever device (10, 12) abuts the socket in a pivoting bearing (10), the bearing being possibly in the form of a strip hinge. Next to the latter is formed an abutting lug for the lever arrangement on a main body of the plug carrying the contact element. This main body (2) is formed in one piece by injection moulding having at least one embedded hinge axis for lever arrangement. The latter (12, 14) may abut the socket on two sides of the plug. Alternately the lever arrangement penetrates through the main body and abuts against the bottom of a socket recess.