baber/WOPTO huggingface dataset:
Patent DE-2713647-A1 (DE)
Title: Passivation of semiconductor devices - via one or more layers of pure or impure silicon carbide
Inventor: YONEZAWA TOSHIO
IPC: H01L21/02
Filed: 1977-03-28
Abstract: The semiconducting substrate is in direct contact with a layer(a) of SiC, which pref. has an impurity concn. below 5 atomic %, the impurities degrading the electrical insulation properties (EIP) of layer (a). The pref. impurities are Pb, W, Ta, Ga, Ba, Mo, Sr, Zn, Cu, Ni, Co, Fe, Cr, Ti, Ca, K, P, Al, Mg, Na, free C, and/or boron. The conc. is esp. below 0.k%, partic. below 0.2%. Alternatively, the SiC may contain no impurity; or below 1022, esp. below 1021 atoms/cm3 of H2, O2, He, Ar, and/or Cl. In any of the above cases, layer (a) is pref. 50 angstroms to 5 mu m, esp. 1000 angstroms to 1 mu m thick, and may be crystalline or amorphous. Layer (a) may be covered by a second layer (b), which is SiC; SiO2; or one or more of Si3N'; alumina; silicate glass doped with P, P+As, or P+Sb. Layer (a) provides insulation or passivation and has excellent resistance to moisture; it also reduced electric noise and a deterioration in the electrical properties of the devices.
Patent DE-2721964-A1 (DE)
Title: Solar energy collector with spaced cover, absorber and insulator - in airtight housing with relative movement accommodating spacers
Inventor: PLATZ GUENTER
IPC: F24S10/40
Filed: 1977-05-14
Abstract: Collector comprises a transparent cover plate spaced above a metallic absorption plate whose upper surface is coated with black absorption material and in contact with heat transfer fluid carrying paths. A heat insulating element is spaced below the absorption plate and comprises a gas impermeable plate having an upper reflective surface. The plates are enclosed on their sides by a housing.
Patent DE-2726152-A1 (DE)
Title: Pawl mechanism for two mutually pivotable parts - with one part having toothed segment and pivot and other part having spring-loaded pawl with locking tongue
Inventor: SOLBERG AASMUND
IPC: E04F10/04
Filed: 1977-06-10
Abstract: The teeth of the toothed segment on one part of the mechanism are at a progressively increasing distance from the pivot. The pawl can be locked automatically in several angular positions in such a way that, when the two parts are swung back, its locking tongue passes by the tip of the tooth with which it was last engaged. The pawl is applied resiliently against the teeth in every locking position. The pawl may have several radially pointing locking notches at an angular distance from its locking tongue. These notches are provided to engage with an auxiliary pawl mounted on the rotatable part.
Patent DE-2727397-A1 (DE)
Title: Solar energy water evaporating system - produces fresh water by condensing vapours from inclined evaporation trays
Inventor: BIESTERFELDT HARALD
IPC: C02F1/14
Filed: 1977-06-18
Abstract: Solar energy can be used, partic. in tropical climates, to convert sea water or rain water into fresh water for irrigation or industrial purposes. The raw water is collected in a reservoir and allowed to pass through a slightly inclined evaporation tray where solar radiation causes it to evaporate. The hot vapours are drawn by ventilators into a system of tubes where they form a condensate. At the same time the latent heat which is released by the condensation process is used to heat the evapn. tray from below.
Patent DE-2728022-A1 (DE)
Title: Reclining fitment for bed and seat backrests - has two interengaging toothed members fixing but not setting inclined position
Inventor: SCHUCKMANN ALFRED VON
IPC: A47C1/026
Filed: 1977-06-22
Abstract: The reclining backrest of the chair or bed can be adjusted by a lever-operated fitment which has interengaging toothed parts. A toothed segment which is non-rotatable but can be disengaged radially towards the swivel axis owing to its eccentric control, is mounted on the side of the seat frame. This engages in a toothed arc which lies concentric with the swivel axis. The toothed parts thus do not adjust the inclination of the backrest but rather fix it in position. Owing to its non-rotatable arrangement, the toothed segment prevents any undesired accidental adjustment of the backrest. To adjust the backrest the toothed segment must first be pushed in a radial direction by the operating handle so that the mesh is disengaged. The toothed arc which is on the side of the back rest is preferably designed as an internally cogged ring which in adition to a stable component also provides a wide displacement range.
Patent DE-2730739-A1 (DE)
Title: Tennis racquet with additional longitudinal strings - providing additional spin to ball with strings offset by half division to base springs
Inventor: HOPPE OTTO-BERND
IPC: A63B51/00
Filed: 1977-07-07
Abstract: On both sides of the main strings (4, 6) there are additional longitudinal strings (8) each of which is offset by half a division in relation to the longitudinal strings of the basic stringing. The additional strings lie on the base stringing and are fixed in the area of their top and bottom ends on the sides relative to each other. Individual transverse strings of the base stringing may be tensioned as support strings across the length strings without interweaving. Pref. the additional longitudinal stringing is interwoven at each end with at least two transverse strings.
Patent DE-2746764-A1 (DE)
Title: Antistatic agent for textiles, esp. carpets - of alkylene oxide-glycidol copolymer, curing agent and catalyst
Inventor: STEVENS VIOLETE LEE
IPC: D06M15/423
Filed: 1977-10-18
Abstract: Antistatic agent for application to textile materials comp rises a mixt. of (a) a polymer with a mol. wt. of is not >20000consisting mainly of units-CH2CHRO- in which 10-90% of the units R are H, CH3 or C2H5, 1-90% is RCH2OH and 0-15% is R'COOCH2, where R'CO is the acyl radical of a 2-20 C fatty acid or a polybasic carboxylic acid; (b) a curing agent for the polymer, contg. a number of gps. which react with prim. OH gps.; and (c) a catalyst which promotes the reaction between (a) and (b). Pref. the curing agent (b) is a melamine-formaldehyde resin and the curing catalyst is a sulphonic acid. The compsns. are esp. useful for applying durable antistatic finishes to textile fabrics e.g. of polyester, polyacrylonitrile and polyamide. The agents are colourless and odourless, non-greasy and non-matting, and do not affect the handle or appearance of the fabrics.
Patent DE-2754224-A1 (DE)
Title: Electronic device adjusting and clearing alphanumerical characters - has solenoid windings each with tappet containing ferromagnetic material
Inventor: HANNEN MARTIN RICHARD
IPC: G09B21/00
Filed: 1977-12-06
Abstract: The electromechanical device has a mechanism which is used to move roller bodies (24) out of their locking positions and release the respective tappets and clear any characters. This mechanism consists of an unlocking plate (29) on which all the roller bodies rest. The plate can be moved to one side so as to roll the roller bodies out of the locking positions. The unlocking plate may be loaded by a spring to bring it back into a first position following an unlocking operation. The plate may be inclined from the horizontal.
Patent DE-2756732-A1 (DE)
Title: Free-flowing granulate contg. poly:phosphate and aluminium silicate - is prepd. by slowly adding water to component powder mixt.
Inventor: DANKWORTH JUERGEN DIPL CHEM DR
IPC: C11D3/06
Filed: 1977-12-20
Abstract: Granulate contains a partly or completely hydrated alkali polyphosphate, (I), and a water-insoluble ion-exchanging alkali Al silicate (II). The granulate is prepd. by slowly spraying water, as a fine haze, with good further mixing, onto the powdery mixt. of an anhydrous (I) and (II). The granulate may be added to cleanser and detergent compsns. Slow hydration prevents caking of granulate and yields a free-flowing granulate, free from coarse granulate and dust. The prods. can be stored and are readily rinsed out in use.
Patent DE-2758251-A1 (DE)
Title: Carbon brush for electric motor composed of two glued-together plies - incorporates soot-coated polyester film to provide predetermined shunt resistance
Inventor: SCHMIDT PETER DIPL PHYS
IPC: H01R39/24
Filed: 1977-12-27
Abstract: Carbon brush for electric machines comprises >=2 adhesively bonded layers parallel to the collector segments. The layers are insulatingly glued together. In the adhesive-treated area, a plastics film, coated with carbon on 1 side, is arranged in such a way that that side bears firmly upon both carbon layers. Carbon-black-coated polyethylene terephthalate film is suitable. In this way, the adhesive-treated area between the layers has a well defined leak resistance.
Patent DE-2803168-A1 (DE)
Title: Electromechanical transducer - with polyvinylidene fluoride foil for piezoelectric effect
Inventor: MEGGL FRIEDEMANN DIPL ING
IPC: H04R3/00
Filed: 1978-01-25
Abstract: An electromechanical transducer is equipped with a foil which produces a piezoelectric effect and is coupled to a device to generate an electric field across the foil. The foil, pref. made of polyvinylidene fluoride, is applied to the surface of a circular plate, made of a material with a high internal damping, which is held clamped either in the centre or along the periphery. Such a transducer is easy to mfr. and is versatile in its application as a microphone, loudspeaker or record scanner.
Patent DE-2810196-A1 (DE)
Title: Extruded film for mfr. of cups and beakers - is calendered to closely regulated low thickness, using mill with diverting and slip-free adjustable counter-rollers
Inventor: BRATSCH KURT ING
IPC: B29C48/355
Filed: 1978-03-09
Abstract: In parent patent thermoplastics granulates is melted in an extruder and then issues from a wide-slot die in form of a fully homogenised film i.e. a so-called compact film. In this addn., combined extrusion and shaping of relatively thin plastics film, using a discontinuously operating shaping machine, features a positively actuated counter-roller whose distance from a diverting roller is infinitely adjustable. The haul-off speed can be increased several times over, thus enabling thin film to be mfrd.. The prod. is suitable for use in mfr. of cups or beakers with lids.
Patent DE-2815649-A1 (DE)
Title: Business form printed in multiple copies - has broad band of adhesive on one sheet in contact with edges of other sheets
IPC: B42D1/00
Filed: 1978-04-11
Abstract: Business forms of which several copies are required, are printed on sheets with gummed edges so that they are held together whilst they are being filled in with the necessary data. Individual copies can then be torn off as required. To facilitate the application of the adhesive, a relatively broad band of adhesive is applied along the edge of the lowest or highest sheet. The remaining sheets are then arranged to overlap each other so that the edge of each sheet can be pressed against the adhesive band.
Patent DE-2815738-A1 (DE)
Title: Flower pot esp. for orchids - has base with perforated central area and annular chamber including porous inner wall
Inventor: BETZ MANFRED
IPC: A01G9/02
Filed: 1978-04-12
Abstract: The pot is for orchirds and has a wall of porous material and a perforated base. The porous wall (1) is surrounded by a spaced outer wall (2). The perforated base (5) has breaks in the region of its complete surface bounded by the porous wall (1). These breaks ensure a ventilation of the inner chamber bounded by the porous wall. Pref., a cylindrical insert, which forms the porous wall and is fitted in an outer body which forms the second wall and the bottom.
Patent DE-2817225-A1 (DE)
Title: Regulator for electrical heating radiator - has temp. signal input to operational amplifier with feedback providing triggering control for fan motor
Inventor: HAPPE KARL ING GRAD
IPC: F24H3/02
Filed: 1978-04-20
Abstract: The regulating circuit for an electrical heating radiator provides output for triggering control circuit for fan motor. The fan motor is driven at variable speed by control circuit comprising differential input operational amplifier with feedback and to which continuous voltage is applied proportional to temperature. Output signal is applied to circuit which forms triggering pulses for semiconductor in motor circuit. A phase delay control circuit enables current to be modified without losses to control motor speed. The temperature signal is applied to a semiconductor switch via a circuit which generates the switch energising pulses.
Patent DE-2822626-A1 (DE)
Title: Yarn knotter and cleaner - are separate mobile units travelling independently on the same track
Inventor: BECK HEINZ
IPC: D01H15/013
Filed: 1978-05-24
Abstract: For a textile machine assembly where there is a yarn knotting unit which travels on a rail round the spinning stations, where is an independent mobile cleaning unit which travels on the same rail, independently of the knotter. The cleaning unit is fitted with a control switch so that, if it nears the knotter, then its direction of travel is reversed. The design separates the two units so that the suction/blowing of the cleaner does not affect the knotter, without requiring a separate travelling rack. The control for the cleaner is an overrun or a proximity switch. The cleaner travels at a faster speed than the yarn knotter. The cleaner carries grid shields on the front and rear sides, in the direction of travel, on an elastic mounting so that if they are pressed against the body of the cleaner then they trip the overrun switch.
Patent DE-2824804-A1 (DE)
Title: Centre-board assembly for sail-board - has effective area variable while sailing and comprises series of flexible sided, rigid ended, boxes extended or collapsible using spring
Inventor: MARKER HANNES
IPC: B63B35/79
Filed: 1978-06-06
Abstract: The sailboat centreboard whose effective area is variable whilst sailing comprises several elements with flexible sides and rigid end panels (17) joined end-to-end. One end panel of the assembly is fixed to the top of a recess (11) in the underside of the board. Helical springs (18) inside each element, pref conical, stretch the sides. These springs are overcome by pulling on a cord (19) fixed to the bottom panel (20), passing through opening in the others and in the board to collapse the assembly progressive. The principle is applicable to various arrangements.
Patent DE-2828700-A1 (DE)
Title: Barium or strontium ferrite prodn. - by reacting starting materials, esp. chloride cpds. in oxidising atmos. in fluidised bed
Inventor: BECKMANN MANFRED DIPL ING
IPC: C01G49/00
Filed: 1978-06-30
Abstract: In the prodn. of Ba or Sr ferrite from Ba or Sr cpds. and Fe cpds. in an oxidising atmos. and with addn. of fuel in a fluidised bed, the ferrite-forming reagents (Ba or Sr:Fe) in the atomic ratio 1:(10.8-12) are introduced directly into the fluidised bed, FeCl3 being used as Fe salt. The fluidised bed temp. is min. 900 degrees C, fluidising gas velocity 2-3 m/s, pressure loss 1500-3000 mm. water column and dwell time of the ferrite min. 4(6-8) hrs. These ferrites are useful for making sintered mouldings. The process used in their mfr. is simple and requires only slight expenditure on equipment. It gives an easily-transported and dust-free prod. Separate predrying of the reagents is unnecessary and the starting materials are cheap. The HCl gas obtd. as by-prod. can be used for pickling and lixiviation.
Patent DE-2829959-A1 (DE)
Title: Vitreous enamel for heat resisting metal workpieces - where slip consists of glass frit mixed with aluminium powder to provide exceptional resistance to heat and shock
Inventor: WRATIL JOSEF DR
IPC: F01N13/16
Filed: 1978-07-07
Abstract: The metals are esp. iron and its alloys, and are exposed to combustion gases at high temp.; they are coated with an enamel contg. Al powder and possessing a glass phase with compsn. (I) by wt. 8-12% Al2O3, 40-60% B2O3, 6-14% Na2O, 0-7% PbO, 0-11% CaO, 7-12% BaO, 2-6% MnO, 0-2% CoO and below 1%, esp. zero % SiO2. The glass phase may also contain fine Si, ZrSiO4, CrO2 and/or CuO. The pref. milled charge used for enamelling contains all pts. wt. 30-60 frit with compsn. (I); 5-60 Al powder; 0-8 Si powder, 0-10 CrO3, 0-10 ZrSiO4; 0.3 CuO; 0.5-3 bentonite; and 70-80 water to obtain a slip for coating the workpieces, which are then baked at 800-950 degrees C. Used for mfg. e.g. combustion chambers or heat exchangers where the invention provides an enamel with good adhesion and free from bubbles.
Patent DE-2836550-A1 (DE)
Title: Mine gallery heat to energy conversion equipment - uses mine gases as fuel for engine or to heat steam boiler
Inventor: HEUER ERNST-HEINZ
IPC: F24D11/02
Filed: 1978-08-21
Abstract: The heating and energy conversion system for use in mining operations includes a unit for sucking up mine gases, a unit for converting chemical energy into mechanical energy and heat, and including a heat pump and cooling system. The unit for obtaining heat and energy is an internal combustion engine which uses the mine gases extracted. Alternatively, the heat and energy system can consist of a gas burner, a boiler and a steam turbine or can be a gasturbine. The heat and energy unit can be selectively connected to a compression heat pump or a generator. When the gas turbine is used, it may also be combined with the steam boiler.
Patent DE-2838004-A1 (DE)
Title: Decoding circuit for dynamic semiconductor memory - has control circuit with input lateral MOSFET and several lateral and vertical MOSFETs and has specified terminal connections
Inventor: MEUSBURGER GUENTHER DIPL ING
IPC: G11C11/408
Filed: 1978-08-31
Abstract: The decoding circuit has several address transistors connected to form a NOR-gate. An activation transistor is used for switching a clock pulse line, while a separating transistor is incorporated between the activating transistor and the word line. A control network (ST) contains a lateral input MOS FET (T2), a laterial control MOS FET (T3) a vertical FET second control transistor (T4) and a vertical FET discharge transistor (T5). The drain terminals of the two control transistors are connected to the gate of the separating transistor (T6). The drain terminal of the discharge transistor is connected to the word line (WL). The source terminal of the first control transistor is at operational potential, while the source terminals of the second control transistor and the discharge transistor are at substrate biased potential.
Patent DE-2846072-A1 (DE)
Title: Map reading bar with inbuilt illumination - has regular incised markings along lower side for easier calculation of distances
Inventor: SCHWARZ KARL
IPC: G02B25/02
Filed: 1978-10-23
Abstract: A reading bar is made of transparent plastics and has incised measuring marks on, in, or adjacent its lower side. These marks are illuminated from lighting units installed at one or both ends. Such a reading bar enables easier reading of maps, esp. at night, and calculation of distances between two places. The marks can be differentiated to denote small and larger distances, as in a conventional ruler. A transparent foil with markings can be glued to the lower surface. A shutter can cover the lighting unit(s) so that the light does not stare the user full in the face.
Patent DE-2855109-A1 (DE)
Title: Pressure hose clip construction - has screw housing sides attached to other strip end clear of free edge
Inventor: HENNING WOLFGANG
IPC: F16L33/04
Filed: 1978-12-20
Abstract: The hose clip comprises a clamping strip with overlapping ends. There is a clamping screw which is held in a housing with two parallel sides. These sides (14) are attached to the end of the strip opposite to the clamping screw head, and clear of its free end (4), which extends under the other strip end (5). They can be arranged to pivot on a bar fixed to the strip, typically by spot-welding, in a recess extending across it. A firm clamping action is obtained, with comparatively simple equipment.
Patent DE-2855990-A1 (DE)
Title: Filament-type trimmer for garden - has lock uncoupled by centrifugal force to feed filament from spool in lengths equal to one turn
Inventor: KOTTKE JOACHIM ING GRAD
IPC: A01D34/416
Filed: 1978-12-23
Abstract: A motor (6) drives a rotating head (1) with a cutter comprising the end part of a plastics filament coiled inside the head. The filament is paid out at the same rate as it is worn using centrifugal force. The filament is automatically freed to unwind from its spool, by a lock coupling whose action depends on the centrifugal force. The filament is fed out in units of one turn.
Patent DE-2902551-A1 (DE)
Title: Flat roof, balcony or terrace drain - involves grating on height adjustable feet inserted in gap in covering
Inventor: WIERIG WOLFGANG
IPC: E04D13/04
Filed: 1979-01-24
Abstract: The drainage system is for flat roofs, terraces or balconies with or without heat insulation, with a top gravel layer and panels on the gravel. The covering is omitted at one or more points, pref. in the peripheral area. Here a lattice grid element is inserted, adaptable to the level of the covering via frame-type elements with height-adjustable feet. Where a gravel covering has been used, the recessed sheet metal element is connected to the grid. The water - conducting layer lies constantly below the top edge.
Patent DE-2905034-A1 (DE)
Title: Non-destructive testing of spot welds - via eddy current search coil and electronic circuit to measure length and thickness of welds
Inventor: FASTRICKIJ VIKTOR SERGEEVITSCH
IPC: G01N27/90
Filed: 1979-02-09
Abstract: A converter generating a prim. electromagnetic field (I) is moved over a spot weld and thus generates eddy currents creating a second magnetic field (II), which interacts with field (I) to produce a third field (III); and the intensity and phase of field (III) depend on the quality of the weld. The max. phase value (epsilon max) occurs where no weld is present, and the min. phase value (epsilon min) occurs at the spot weld. The difference between the two phase values is used to indicate the thickness (t1) of the wled; whereas the path length over which epsilon min has a constant value is used to indicate the dia. of the spot weld. The pref. appts. includes a sine-wave generator feeding an electronic bridge circuit contg. a phase shifter and phase measuring appts.
Patent DE-2910638-A1 (DE)
Title: High-frequency flip=flop with ring of transistors - has base coupled to collector via separate resistor
Inventor: MAIER HARTMUT
IPC: H03K3/286
Filed: 1979-03-17
Abstract: The h.f. flip flop has a chain of transistors with the base of one coupled via a resistor to the collector of the next to form a closed ring. The emitters of the transistors are coupled to a first shared supply rail and their collectors are connected via separate collector resistors to a second shared supply rail. The output is taken from the collector of one of the transistors. During operation, T1 is conducting and its collector is at level 0 so that T3 draws no current since its collector is at level 1, which means that T1 turns off. To can now turn on and its collector goes to 0 and T2 switches off.
Patent DE-2911010-A1 (DE)
Title: Tilting window opening mechanism - has pivoting member on bar with holes engaged by pin and boss
Inventor: HORSTMANN HEINZ
IPC: E05D15/52
Filed: 1979-03-21
Abstract: The opening mechanism is for the tilting leaf of a window door etc. having a catch bar sliding for a limited amount at one end on the leaf, and having attached to the other end a supporting member with a hole fitting over a pin on the fixed frame. Depending on whether the mechanism is used left- or right-handed, the member swings into one of two angular positions in relation to the bar and is locked in it. The member (17) has two holes (30, 31) spaced apart for an amount corresp. to the swinging movement of the member about its pivot point (20). One hole fits over the pin, while the other is engaged by a locking boss (37) formed on the bar (10).