baber/WOPTO huggingface dataset:
Patent DE-2516595-A1 (DE)
Title: Circuit breaker contact system - has U-shaped contact path with ferromagnetic material between both shanks of U
Inventor: DRUECKER UWE DR
IPC: H01H1/54
Filed: 1975-04-16
Abstract: The contact system operates with two vertically arranged contacts in parallel under an arc extinguishing chamber. The current paths to the contacts are also parallel and partial current flow through them in the same direction, in order to provide an increase of the contact force. The lower contact path is U-shaped and the free shank of the U carries the contact. The rest of the U forms with the other contact path a current loop, the switching light arc being affected by the magnetic blast forces via this loop, as in 1640885. Between both shanks (16, 17) of the U-shaped contact parts is provided ferromagnetic material (20), preferably of one or several dynamo laminations.
Patent DE-2521450-A1 (DE)
Title: Testing for softening temp of thin coatings - by determining the capacitance change beneath an indenter
Inventor: DEASLEY PETER JOHN
IPC: G01N25/04
Filed: 1975-05-14
Abstract: The softening temp. of a thin (non-conductive) coating applied to the surface of a conductive substrate is determined by applying an indenting foot with controlled force upon the surface of the coating and monitoring the electrical capacitance of the foot/coating/substrate. The onset of softening is indicated by a sudden increase in the capacitance of the system. Method is used for detg. the softening point of thermoplastic coatings, and is more sensitive than simple mechanical displacement transducer test systems, applicable to thinner coatings, i.e. down to 1-2 mu.
Patent DE-2523332-A1 (DE)
Title: Mixer circuit insensitive to amplitude variation - is for HF signals and uses back to back diodes and resistors
Inventor: REHFELD INGO DIPL ING
IPC: H03D7/02
Filed: 1975-05-27
Abstract: The circuit consists basically of a double branched network each branch comprising a pair of resistors(6, 7; 8, 9) connected in series with a diode (10, 11). Two output signals HF1 HF2) are fed to different points of this network and an output signal (3) is taken from a further point. The output signal contains sum and difference frequencies derived from the non-linear operation of the diodes (10, 11) which also limit input signal amplitude variations and so limit the production of disturbance frequency signals at the output (3). An unproved version of the circuit and an illustration of its use in a frequency duration measurement network incorporating a CRT display are also described.
Patent DE-2528923-A1 (DE)
Title: Drying system for strips of film or photographic paper - includes measurements of psychometric difference in temp. of warm air exhaust used to control heating system
Inventor: LAAR ERWIN ING GRAD
IPC: G03D15/02
Filed: 1975-06-28
Abstract: The drying system is applicable for strip or band form material esp. material having a photographically sensitive layer roll films. The coated material is fed from the last fluid filled processing bath into a thermally regulated warm or hot air zone. The psychometric difference in the exhaust or waste warm air removed from the warm air zone of the drying system, is measured and used to control the operation of the heating system of the drying system. The air is passed over dry and moistened sensors giving a difference in temp. measurements.
Patent DE-2533939-A1 (DE)
Title: Permanent-magnet perpetual motion machine - employs interaction of electrostatic-physical, vectorial-geometrical and mechanical factors
Inventor: SCHMIDT JOSEF
IPC: H02K53/00
Filed: 1975-07-30
Abstract: The permanent-magnet machine executes perpetual motion without supplying any energy other than that needed initially to magnetise the permanent magnets. The machine is arranged so that three 'factors' interact in a given way. These 'factors' are: 'electrostatic/physical properties, vectorial geometry, and mechanical design'. The drive magnet in the rotor is a permanent dipole in the form of a flat plate. Large numbers of applications are given.
Patent DE-2536839-A1 (DE)
Title: Night visible road marking stud - with tough elastic plastic base adhesive between top and bottom locking elements
Inventor: GUBELA GUENTER
IPC: E01F9/553
Filed: 1975-08-19
Abstract: The road sign marking stud is fitted for night visibility and has a partitioned hollow space underneath, filled with tough elastic hot-melting plastic-based adhesive. The stud comprises a base for connection to the road surface and a detachable top part with the night sign. A tough elastic adhesive is added between these interlocking elements (17). There may be apertures (15) in the underside (14) of the base part near the interlocking elements, for penetration by the tough elastic adhesive used for attachment to the road surface, into a position between the interlocking elements. The top part may be translucent or transparent dome, with an electric bulb inside it.
Patent DE-2552706-A1 (DE)
Title: Quick change flip-over theatre scenery system - comprises numbers of panels linked by band system to flip over sequentially
Inventor: REICHELT PETER
IPC: A63J1/02
Filed: 1975-11-25
Abstract: The tip up system is a combination of swivel, winding and swing movements applied to the quick changing of theatre props, advertising props etc. The system includes a number of geometrically rectangular, square or within defined lines parallel units as links with individual bands in at least three sectional planes made into a linked chain arrangement. The bands have a complex attachment system to the individual units making up the system permitting different individual movements or combination of such movements to be carried out.
Patent DE-2553755-A1 (DE)
Title: Plastics joint box for electric cables - having cable entry ends bonded to polyethylene cable sleeve by heating plastics by wires embedded in plastics
Inventor: JAGT WILFRIED
IPC: H02G15/113
Filed: 1975-11-29
Abstract: Water and air tight electric cable junction box has its interface and cable entries sealed by bonding the cables, having a polyethylene insulating sleeve to the openings in the walls of the junction box made of plastics material. Pref. the junction box ends are provided with annular cable portions surrounded by plastics material which when heated by the cables form the water and moisture proof joints. Similarly, the interface between the junction box halves is sealed by interposing cables.
Patent DE-2559706-A1 (DE)
Title: Cutter head for machining wood, plastic etc. - has multiple easily exchangeable and adjustable cutters
IPC: B27G13/10
Filed: 1975-01-22
Abstract: In a cutter head for maching wood and plastic, the support disc for with has a series of outwardly open recesses in its peripheral zone, for fixing exchangeable cutters, the foot of the cutter being capable of being immobilised in a recess of a support body, (a) a minimum radial distance - form the centre of gravity of the support disc - of a recess and its side walls forms a right angle with the base surface (viewed always in cross section). (b) the cutter in bent, in known manner, in the direction of rotation and the base and side surfaces form a right angle, which the angle adjacent to the clamping jaws deviates from a right angle and forms an angle of 180 degrees with the angle of the side which is adjacent to the side of the clamping jaw, the angle of the side of which adjacent to the side wall of the recess is a right angle. The basic body of the cutter head is so shaped that all types of milling can be carried out by simple exchange or transposing of the cutter or cutter support body. Only a relatively few cutter bodies need be kept in storage.
Patent DE-2608895-A1 (DE)
Title: Flameproof moulded polystyrene foams - prepd. by expanding beads, milling and then working up with aq. alkali silicate
Inventor: HOENER HERMANN
IPC: C08J9/22
Filed: 1976-03-04
Abstract: In the parent patent, flame-resistant moulded polystyrene foam articles are prepd. by opt. multi-step foaming of a blowing agent-contg. polystyrene granular or -pearl polymer. An aq. medium is used, contg. alkali silicate and opt. hardeners and/or fillers. In >=1 foaming step, aq. medium contains a water-sol. opt. modified alkali silicate contg., by wt. 20% SiO2, >7%K2O and >2.5% NaO. Medium has viscosity 35-150 cP at 20 degrees C. In this addn. blowing agent-contg. polystyrene granulate or -pearl polymer is expanded at 95-100 degrees C, before treatment with the aq. alkali silicate-contg. medium. The expanded particles are then milled or beaten, followed by further working up together with the aq. alkali silicate-contg. medium. Used for the prodn. of inorganic, incombustible foamed building materials and filter articles. Flameproof properties are further improved, e.g. flame resistance can be increased from 660-705 degrees C to 800 degrees C.
Patent DE-2609469-A1 (DE)
Title: Multifocal glass lens mfr. - using photochromic glass fused to another glass and heat treated
Inventor: MANN GEORGE HANFORD
IPC: C03C4/06
Filed: 1976-03-08
Abstract: A photochromic multifocal glass lens consisting of a photochromic glass as the major constituent and at least one segment of glass fused to the photochromic glass and composed of glass with a refractive index greater than the refractive index of the photochromic glass, is made by heating at 510-550 degrees C for 10-50 mins. a glass which is potentially photochromic and which contains (by wt.) 48-57%SiO2, 6-10%Al2O3, 15-22%B2O3, 0.8-2%Na2O, 2.4-3.1%Li2O, 0-4%K2O, 3.2-7.2%Na2O+Li2O+K2O, 4.5-5.3%PbO, 3-9%BaO, 0-7.2%ZrO2, 0.1-0.6%Ag, 0.01-0.1% CuO, 0.15-1.2% Cl, 0-1% Br, 0-0.1% I and 0-1.2%F. The heat treatment initiate grain growth of Ag halide crystals in the glass. The potentially photochromic glass is then fused to another glass of greater refractive index by heating treating at 635-670 degrees C for 15-45 mins. this treatment also develops the photochromic properties of the principal glass. The lens is then cooled. The photochromic properties are uniform and reproducible. The photochromic glass is not overdeveloped as the photochromic propertie are not developed until the second heat treatment.
Patent DE-2610642-A1 (DE)
Title: Package with visible contents - has top of windows in two opposite side walls reinforced by channel shaped edges of cover
IPC: B65D6/00
Filed: 1976-03-13
Abstract: Packing with visible contents is formed from a folded cardboard blank. It includes a quadratic base and a cover wall joined together by side walls. Two opposite side walls are partly or completely open to form viewing windows. A part of the cut-out for forming the cover wall (22) adjoins the windows (26) is wider than the width of the cover wall (22) of the assembled packing (10). From the sections of the cut-out projecting over the width of the cover wall (22) a part is bent downwards. The remaining ends of the sections are bent inwards and are in parallel with the cover wall (22).
Patent DE-2612674-A1 (DE)
Title: Electric arc furnace for multistage continuous processing - has moving vessel with partition walls and rotating cover
Inventor: STARK HEINZ
IPC: F27B3/08
Filed: 1976-03-25
Abstract: The electric arc furnace for multistage processes has a moving vessel with a shield cover through which pass electrodes. The furnace is suitable for multistage metallurgical processes and permits continuous processing. Energy losses in operation are reduced and the duration of the processes is reduced. The furnace vessel (1) whose inner chamber is divided by vertical partitioning walls (8) at least into two chambers (7a, 7b). The furnace has a cover (11) fixed relative to the furnace frame (12, 13). This cover is able to rotate relative to the vessel axis. The upper edge of the partition wall (8) starting from the vessel bottom (22) is situated under the electrodes (19) when they are in raised position.
Patent DE-2615317-A1 (DE)
Title: Electrical insulation for transmission cables - comprising mixt. of high and low pressure polyethylene foamed with aromatic sulphohydrazide
Inventor: LENK ANITA ING GRAD
IPC: H01B3/44
Filed: 1976-04-06
Abstract: Electrical insulation for transmission cables, esp. HF transmission cables, consists of polyethylene chemically foamed with an aromatic sulphohydride of formula: H2N-HN-SO2-R-SO2-NH-NH2 (R = aromatic gp). It is produced by incorporating into a melt contg. 100 pts. polyethylene (10-90 pts. high pressure polyethylene and 90-10 pts. low pressure) 0.5-1.5 pts. oxybis (benzene sulphohydrazide) in which the sulphohydrazide gps. are linked to the gp. R in posns. other than 4,4'. This acts as a blowing agent. Pref. the blowing agent is 3,3'-oxybis(benzene sulphohydrazide.). The compsn. pref. contains 0.6-0.9 pts. aromatic sulphohydrazide. The compsn. produces uniform foam which gives more consistent electrical properties. In an example 0.75 pts. of an aromatic sulphohydrazide (pref. 3,3'-oxybis (benzene sulphohydrazide)) were incorporated at 135-150 degrees C into a mixt. of 50 pts. high pressure polyethylene (density 0.918, melt index 0.5) and 50 pts. low pressure polyethylene (density 0.960, melt index 0.3), using a kneader or mill. The prod. was then granulated.
Patent DE-2636594-A1 (DE)
Title: Horizontal deflection circuit for TV receiver - has two input thyristor switches, with ignition instant of first switch shifted relative to second for energy control
Inventor: KELTING PETER
IPC: H03K4/83
Filed: 1976-08-13
Abstract: A supply switch with a first thyristor and a supply choke are in series with the supply voltage and connected to the input of a switching network. An inductance e.g. the horizontal deflection coil carrying a saw-tooth current is connected to the switching network output. A switching circuit with a second thyristor is in parallel with the switching network input. In order to control the energy supply ignition instant of the first thyristor is shifted relative to that of the second thyristor by control pulses from a control circuit. A control circuit (2) has a time limiter, so that, esp. at a high supply voltage, ignition time of a first thyristor (Th1) can be shifted only so that the limiting of energy supply is maintained.
Patent DE-2639748-A1 (DE)
Title: (N)-Aryl-(N')-alkyl-thiourea derivs. - useful as ectoparasiticides, insecticides, fungicides, acaricides
Inventor: ENDERS EDGAR DR
IPC: C07C335/16
Filed: 1976-09-03
Abstract: N-Aryl-N'-(cyclo)alkyl-thioureas of formula (I) and their acid-addn. salts are new: (where R1 is 1-6C alkul or 3-7C cycloalkyl; R2 is 2-6C alkyl or 3-7C cycloalkyl; R3 is 1-6C alkyl, 3-6C alkenyl, 3-7C cycloalkyl, 5-7C cycloalkenyl or halogen; n = 0-2; R7 is opt. substd. 3-10C cycloalkyl, opt. substd. 5-10C cycloalkenyl, or CR4R5R5; R4 is H, 1-6C alkyl or 3-7C cycloalkyl; R5 and R6 alkyl or 3-7C cycloalkyl). They are esp. active against phosphate-resistant Boophilus ticks and other animal ectoparasites. A typical cpd. is N-(2,6-di-s-butulphenyl)-N'-butyl-thiourea. In an example, this is prepd. from 2,6-di-s-butylphenyl isothiocyanate and t-butylamine.
Patent DE-2643265-A1 (DE)
Title: Fastener for rotating joint in pipework - has housing on pipeline relieving components from displacement forces
Inventor: WESTERHOFF HEINZ DIPL ING
IPC: F16L27/08
Filed: 1976-09-25
Abstract: The fastener for pivoted connector pipe is used in connecting pipes between two pipelines of which at least one is able to move. The connectors are used e.g. in boiler pipework. The fastener is readily connected and ensures complete relief of the stresses in components between the outside pivoted connections and the connected pipelines while reducing dynamic forces. The housing of a pivoted joint (1, 2) is held directly on the associated pipeline (9, 10). This housing rests on a bracket (12) which in turn is held by clips (13) on the pipes (9). The rigid connection of the outside rotating element with the moving pipe ensures that the forces resulting from displacements are transmitted directly into the pipeline so that the other parts of the connection is fully relieved.
Patent DE-2643839-A1 (DE)
Title: Safety appts. comprising longitudinal and hoop elements - used to surround vessels or pipes contg. high pressure fluid, e.g. in nuclear power plants, to restrain cracks or bursts
Inventor: SCHOEFFEL FRIEDRICH PROF DR IN
IPC: F16L35/00
Filed: 1976-09-29
Abstract: A safety device for pipes, hoses, containers, vessels, boilers and the like is intended to retain forces occurring under leaks or bursts of high pressure fluid. The pipe or vessel is surrounded by removable longitudinal and/or transverse elements which accept the transverse or longitudinal forces and/or deformations which occur as a result of a crack or burst. Used for any plant containing high pressure fluids, such as chemical or process plants or nuclear power plants.
Patent DE-2649931-A1 (DE)
Title: Inexpensive sodium ion conducting solid electrolyte - comprising anhydrous sodium thiosulphate, used in polysulphide melt of sodium-sulphur batteries
Inventor: BENDA KLAUS VON DR
IPC: G01R22/04
Filed: 1976-10-29
Abstract: Anhydrous Na thiosulphate (I) is used as Na ion-conducting solid electrolyte. (I) can be used in the positive polysulphide melt of Na/S batteries. (I) is inexpensive and has a high conductivity, i.e. ca. 0.1ohm-1 cm-1 at 360 degrees C. In an example, Na2S2O3.5H2O was dehydrated at 100 degrees C in high vacuum and pressed into pellets (4.5mm dia., 4.2mm long) with ca. 85% of the theoretical density. The conductivity was 0.096ohm-1 cm-1 at 364 degrees C and 2000 Hz.
Patent DE-2655512-A1 (DE)
Title: Car seat cushion for child - has wedge shaped body with wider end at front to prevent sliding off
Inventor: MUSKAT KURT ING GRAD
IPC: B60N2/28
Filed: 1976-12-08
Abstract: A wedge shaped cushion (20) is fitted to the rear seat squab (1), with the wider edge of the wedge at the front. This provides a comfortable support for a child or a person of small stature while preventing the occupant from sliding off in a collision. The cushion is suited for larger children who are too large for the conventional seat shells. The raised front edge is set back from the edge of the squab for stability.
Patent DE-2658451-A1 (DE)
Title: Liq. volume control for field sprayer - has return lines connected to three way taps, and with servo-elements to vary flow cross-section
Inventor: NOERENBERG ADOLF
IPC: A01M7/00
Filed: 1976-12-23
Abstract: The spray liquid which is in a supply tank is fed by a pump via a suction line to distributor jets via a pressure line. An adjustable pressure regulator has a cut-off tap, and a distributor head and connected branch lines. In front of the cut-off tap is a return line to return that part of the feed volume not required into the supply tank. For each branch line, there is a three-way tap, each with a return line. Each return line (24) connected to the three-way taps (19) has a servo element to vary its flow cross-section. The servo-elements (27) are arranged in a collector housing (25) into which the return lines (24) open and from which a central return line (26) is passed to the supply tank (3).
Patent DE-2702583-A1 (DE)
Title: Sulphur dioxide removal from residual gases - by absorbing with a buffered aq. soln. of organic acids
Inventor: GERMERDONK ROLF DR ING DR
IPC: B01D53/14
Filed: 1977-01-22
Abstract: is removed from residual gases or outgoing air, to concns. 0.1 vol.%, by absorption with a buffered aq. soln. of organic acids, with subsequent regeneration of the soln. by heat treatment. The gases are washed in >=1 scrubbers at =50 C. with aq. dicarboxylic acid soln. buffered to pH 2.8-9, this soln. having a concn. representing 10-95% of the saturation concn. The SO2 dissolved is removed from the washing soln. by heating between is approx. 50 degrees C. and the b.pt. of the soln. The soln. is then cooled to 0-50 degrees C. and reused in a closed circuit for SO2 absorption. Gases contg. not only a low SO2 content but those with high SO2 contents, e.g. >20 vol.% can be purified. Pure SO2 can be obtd. and used in the prodn. of H2SO4.
Patent DE-2706456-A1 (DE)
Title: Improve feed preheat for sulphuric acid distillation - using liquid seal and dip pipe arrangement
Inventor: GRZYBOWSKI HOLGER
IPC: C01B17/90
Filed: 1977-02-16
Abstract: H2SO4 distillation system is made from a ceramic material esp. quartz glass or other quartz material. It consists of a boiler base, an after cooler, a packed column and a heat exchanger to recover heat from the prod. This is connected to the packed column on one side and to the boiler base on the other. The exchanger consists of a closed pipe, the feed is fed to the base of this via a dip pipe. The vapour prod. surrounds the outside of the tube. The whole is enclosed in a jacket and the feed flow up the closed pipe and down the outside. It then flows via a liq. seal and a dip pipe straight to the boiler base. The dip pipe runs straight down the packed column. Used for producing a pure grade of H2SO4 from a crude feed. The system described gives good feed preheat, preventing a severe temp. change on introducing it into the boiler base and it is space and material saving.
Patent DE-2711475-A1 (DE)
Title: High resolution A=D converter circuit - compares input with step voltage and when coincidence is achieved transfers counter contents to store
Inventor: BAYATI ABUTORAB DR
IPC: H03M1/00
Filed: 1977-03-16
Abstract: The high-resolution A/D converter, is used for monotonically changing analogue signals. It has a step-voltage generator (TSG) whose output voltage is equal to the analogue input signal (Ue) once every step. A comparator (VGL1) compares the generator output with the analogue input and if the two are equal it releases a pulse. This pulse causes the contents of a counter (Z1) -- counting clock pulses -- to be transferred to a store (ES) coupled to the input of an evaluator (AW1).
Patent DE-2714872-A1 (DE)
Title: Head lamp glass cleaning system - has wiper motor actuated by electromechanical switch with drive transmitted via flexible shafts and slip clutches
Inventor: IMMENDORF KARL M DIPL ING
IPC: B60S1/60
Filed: 1977-04-02
Abstract: The wiper drive motor is excited by impulses from a relay switch. One shaft end has a bevel gear (2) to drive two gear wheels each with a slip clutch (4) to turn flexible shafts (5, 5a) for the rotating head lamp glass wipers. The second shaft end turns an electro mechanical rotary switch via a reduction gear (6). The rotary switch consists of a regulator (7) and a keeper (8) joined by a drag link (9). The upper side of the regulator disc has a specially shaped electrically conductive layer (11). Three fixed slip contacts (S, S and S-) make electrically contact with the conductive layer when the disc rotates. The keeper disc has a recess (12) in the edge normally closed by a sprung locking piece.
Patent DE-2726542-A1 (DE)
Title: Appts. for pre:expanding polymeric beads - in which the beads are swept around the surface of a heated chamber
Inventor: SMITH STUART B
IPC: B29C44/34
Filed: 1977-06-13
Abstract: Appts. comprises a horizontal cylinder having a heated wall and an agitating means for wiping the beads along the wall. A pressurised air source is connectible to the cylinder to increase the press. on the particles to prevent further expansion when the desired degree of expansion is reached. The pre-expanded beads, still under pressure, are either conveyed to a storage device for subsequent use or are conveyed directly to a mould where expansion is completed. The beads are uniformly pre-expanded and uniformly fill the mould to give an expanded article of uniform density and properties. Beads of conventional polymeric material such as polystyrene can be used and high and low density articles equally easily produced.