baber/WOPTO huggingface dataset:
Patent DE-2145905-A1 (DE)
Title: Electroless metallisation of insulators and poor conductors - by mixing with fine quartz sand and roughening before metallisation
Inventor: GEBELEIN ARMIN DIPL PHYS
IPC: C23C18/18
Filed: 1971-09-14
Abstract: Metallic (partial) coatings, which adhere well, are applied to substrates of poorly or non-conducting material by mixing with fine quartz sand before metallisation and then removing a thin layer from the substrate surface to expose the quartz grains. The technique is esp. useful for metallising plastics based on epoxide resins, e.g. for printed, thin- and thick-layer circuits. Electroless plating is used for metallisation, typically using SnCl2 and then PdCl2 solns. to give a Pd layer which favours the chemical deposn. of various metals.
Patent DE-2167028-A1 (DE)
Title: Combination ski and walking boot - has wedge shaped resilient toe and heel portions joined to rigid sole
Inventor: ERLEBACH RICHARD
IPC: A63C9/086
Filed: 1971-08-19
Abstract: The ski boot has a ski boot sole having a toe portion and a heel portion and an intermediate sole portion formed of essentially rigid material. The toe portion and the heel portions of the ski boot sole are formed of an elastically compressible material. The ski boot sole comprises an essentially plate-shaped rigid support portion which at the region of the toe portion and the heel portion tapers upwards to define respective wedge-shaped portions. The heel portion and the toe portion of the ski boot sole are in the form of wedges formed of the elastically compressible material, each of the wedges having a cutting edge and the cutting edges confronting one another.
Patent DE-2230739-A1 (DE)
Title: Olefin dimersn/oligmsn catalyst - easily removable after use
Inventor: PRACEJUS HORST PROF DIPL CHEM
IPC: B01J31/14
Filed: 1972-06-23
Abstract: Catalyst consists of nickel zerovalently bonded to a polymeric substrate (e.g. a styrene divinyl benzene copolymer). As carrier a phosphine-, arsine- or stilbene gp. contg. polymer is used.
Patent DE-2253538-A1 (DE)
Title: Orange-violet fluorescent benzpyran dyes - for polyamides, cellulose esters, polyesters and acrylics
Inventor: MACH WOLFGANG DR
IPC: C09B57/00
Filed: 1972-11-02
Abstract: Title cpds. of formula (I): (where Z is opt. substd. alkyl or aralkyl; Z1 and Z2 are H, opt. substd. alkyl, cycloalkyl, aralkyl or aryl; or -NZ1Z2 forms part of a heterocycle, or a satd., opt. substd. 5-6 membered ring condensed in the o-posn. w.r.t. the N atom; Z3 is H, alkyl, alkoxy, halogen, CN, NO2, opt. substd. carbamoyl. or sulphamoyl or carbalkoxy; n is 0 or 1; Z4 is 0 or NH; Z5 is H, carbalkoxy, NO2, CN, alkyl-sulphonyl, opt. substd. carbamoyl, sulphamoyl, phenyl, arylsulphonyl, benzthiazolyl, benzoxazolyl or quinazolinonyl; A + is an anion). They are by reacting the corresp. imino-coumarine with cpds. of formula H2C (B) Z5 (where B CN or carbalkoxy) and opt. quaternising the cpd. (I) obtd. when n is 0.
Patent DE-2259232-A1 (DE)
Title: Conical fully-jacketed centrifuge basket for sugar masses - has two unperforated, nested conical jackets, interconnected only at top and bottom ends
Inventor: TROJAN GUENTER
IPC: B04B7/08
Filed: 1972-12-04
Abstract: Centifuge has a working sieve and a support sieve with spacer bars, and liquid take off at the upper discharge end. Pref. the jackets are connected together by a flange and a discharge ring; they are spaced apart and, in common with the flange and ring, delimit a space which can be heated or is heat-insulating.
Patent DE-2314502-A1 (DE)
Title: Composite metal-working roller - with replaceable surface member and expandable axle
Inventor: ROTERT KURT
IPC: B21B27/02
Filed: 1973-03-23
Abstract: The surface member is of high wear-resistance and the axle is of high torsional and bending strength. A hollow, filled with pressure fluid is provided in the axle. To assemble the roller the axle is introduced into the cylindrical surface member and to obt. a tight fit the fluid is pressurized from a cavity located at the end of an axle stub, the cavity being joined to the hollow by an oilway. In the cavity may either be a screwed-down pressure applying piston, or a non-return valve and a relief valve. In the second case the fluid is pressurized by an external pump.
Patent DE-2320347-A1 (DE)
Title: Crucible with electrically heated base - and resistance elements arranged across base in ceramic lining
Inventor: JUNGHANNS PAUL
IPC: F27D99/00
Filed: 1973-04-21
Abstract: The elements may run in parallel closed cavities or in parallel open grooves along ceramic blocks, one to each block. In the case of closed cavities a ceramic mass may surround each element. Between the blocks are seals of expansion compensating matl. The elements can be graphite or SiC rods. the appts. is used for holding or melting metals esp. light metal or Zn alloy.
Patent DE-2344627-A1 (DE)
Title: Speed measuring device for vehicles and aircraft - using doppler shift of electromagnetic waves, uses waveguide
Inventor: GROLL HORST PROF DR-ING
IPC: H01Q13/20
Filed: 1973-09-05
Abstract: The aerial for measurement of the velocity of a component of the velocity consists of a waveguide parallel to the object movement, partly conducting and partly uniformly radiating electromagnetic rectangular; it is suitable for waves in the H10 wave mode with the longitudinal slot running on one side of the central line of the wide side of the waveguide. The distances between the slot and the central line, and the slot width are variable, or alternatively the waveguide may be a coaxial conductor with the slot in its outer conductor.
Patent DE-2346144-A1 (DE)
Title: Multi-metal light railway wheel - with bonded fitting between components to accommodate differential thermal expansion
Inventor: BRINKMANN PAUL DIPL ING
IPC: F16B11/00
Filed: 1973-09-13
Abstract: The main part of the wheel disc is made from a light alloy casting and has a conical bore for locating the hard metal hub. The cone slope of the bore is steeper than that of the hub and the two components are bonded together by a two component metal bonder. The hard metal wheel crown is fitted to the wheel disc in a similar way, but with straight bores. The bonder eliminates fitting stresses between the components and prevents strain due to differential thermal expansion, especially when braking. The joints are designed to overlap with the edges of the bonder protected by the overlap.
Patent DE-2353671-A1 (DE)
Title: Nuclear energy liberation - by action of thermal neutrons on lithium-deuterium target
Inventor: WILKE WERNER
IPC: H05H6/00
Filed: 1973-10-26
Abstract: Nuclear energy is evolved by introduction of thermal neutrons into a lithium-deuterium target where tritium is produced by a primary reaction (Li6(n,alpha)H3); a part of the tritium atoms participate in a secondary reaction with deuterium of the target (D(T,n)alpha); the remaining tritium atoms react with other deuterium atoms, which may be additionally introduced into the target. Otherwise, the excessive tritium atoms can be sepd. from the target and recovered by chemical and/or physical methods and used as a tritium source or a tritium-contg. target. In the latter case, the target can be subjected to deterium bombardment (T(D,n)alpha), and the resulting neutrons are moderated to the thermal level and introduced into the lithium-deuterium target. The main reaction (L26(n,alpha)H3) is esp. advantageous for the evolution of nuclear energy, because of the high capture cross-section for thermal neutrons (5 = 953 b) and high energy yield (total 4.8 MeV, i.e. 0.8 MeV per mass unit compared with 0.9 MeV for the splitting of U-235). Radioactive waste prodn. is lower than in the conventional processes.
Patent DE-2355193-A1 (DE)
Title: Twisting yarn by withdrawing axially from a package - surrounded by a casing in which the yarn forms balloon at the opens mouth of which the air turbulence is gradually reduced
IPC: D01H1/00
Filed: 1973-11-05
Abstract: Yarn is withdrawn axially from a package and passed through a lappet in axial alignment with and arranged above a package whereby the yarn forms a balloon between the package and the lappet, and the package is surrounded by a casing which is rotatable with the package. The mouth of the casing adjacent to the lappet is completely open so that the turbulence of the air through which the yarn passes in moving to the lappet is gradually reduced. The yarn is not suddenly subjected to a change from air rotating with the package in the casint to air which is stationary adjacent to the lappet, thereby reducing damage to the yarn. Pref. the length of the casing is greater than that of the package, and an extension piece is provided to adjust the length of the casing. The casing may be surrounded by a stationary outer housing, and disc having a slightly smaller diameter than the inner dia. of the casing may be provided on the top of the package spindle.
Patent DE-2358881-A1 (DE)
Title: Coupling optical fibres with semiconductor lasers etc. - in optical communication systems using repeaters
Inventor: WEIDEL EDGAR DIPL PHYS
IPC: H01L33/00
Filed: 1973-11-27
Abstract: In this process, material is removed from the flat and surface of an optical wave guide, i.e. an optical fibre, to produce an approximate contour, and heat-treatment is then used to obtain the shape and surface required for the couple. The initial contour mat be obtd. either by deposition of by photo-masking and selective etching with a liq. and a beam of light may be passed along the fibre for aligning the initial contour. Material may also be removed from the end surface of the fibre by sputter-etching or by an ion-beam. The heat-treatment is pref. undertaken using a carbon-dioxide laser and durng this treatment a beam of light can be passed down the fibre so tht when the desired energy distribution is reached the heat-treatment is stopped. Used in transmission systems and repeater station using GaAs double-heterojunction lasers, glass optical fibres as the carriers and avalanche photodiodes as receivers, using e.g. monomode light lines operating at a few gigabits per second over relatively long distances. advantage lies in low loss, e.g. when coupling fibres to a semiconductor laser.
Patent DE-2363688-A1 (DE)
Title: Hydro-pneumatic pressure store - has sealed housing divided into two separate chambers for fluid and for gas
Inventor: GOTTSCHALD LUTZ DR ING
IPC: F15B1/14
Filed: 1973-12-21
Abstract: Hydro-pneumatic pressure store with a gas-and fluid-tight housing whose inside is divided into two separate chambers, a fluid chamber with a fluid connection and a gas chamber with a gas filler opening for introducing a pressurised gas. The dividing wall in its edge region, is held between a ring-shaped holding component which does not touch the inner wall of the pressure store, and the inner wall. The holding component has the form of a tightly coiled spring of small diameter which is deformed from its stretched position to a ring, with the ends supported on each other. The ring has a greater diameter in the unbuilt-in state than in the built-in state. The coil spring is encased by a plastic tube, made of a more wear resistant material than that of the dividing wall.
Patent DE-2400408-A1 (DE)
Title: Plastics housing for volumenometers or flowmeters - made from several injection-moulded components, with intake seating, connection pieces and inspection glass
Inventor: HESS HERBERT
IPC: G01F15/14
Filed: 1974-01-05
Abstract: An injection-moulded housing esp. for volumenometers or flowmeters for various media is made from several, separately moulded, components. An annular bushing (4) with 2 lateral, opposite intake seatings (14) forms, together with connection pieces (1,8), bottom (5) and inspection glass (6) a complete housing, owing to the suitable shape of the inner contours (12) and by connecting at the joint areas (2, 7, 9, 16). flarings (11) and shoulders (10) are formed mostly in the connection pieces (1, 8). The various components may be made from different materials each adapted to withstand particular stresses, that may araise in a given section of the housing during operation.
Patent DE-2410608-A1 (DE)
Title: Test instrument for hydraulic systems - uses hydraulic gear pump to measure throughput with tachometer on pump shaft
Inventor: SCHROEDER FRIEDRICH-WILHELM
IPC: F15B19/00
Filed: 1974-03-06
Abstract: Test instrument for testing the output of open or closed hydraulic systems, especially for agricultural machines and vehicles where the test instrument has a special displays for pressure, temperature and through put of the hydraulic medium. To measure the through put, the test instrument has a conventional hydraulic pump, which runs empty and the pump shaft has a conventional revolutionary speed indicator. The pump is a gear pump and the pump shaft is connected with the speed indicator by a tacho-shaft. An adjustable choke valve or pressure limiting valve is fitted in the test line before the hydraulic pump.
Patent DE-2411314-A1 (DE)
Title: Easily assembled picture frame moulding - comprises one shaped strip with specific cut-outs for bending into frame with accurate mitred corners
Inventor: BENDIX FERDINAND A
IPC: A47G1/06
Filed: 1974-03-09
Abstract: The picture frame is made from a basic section strip of a certain length wherein a covering material is connected to the outer surface thereof. Angled recesses are cut into the strip along one side thereof whilst the ends of the strip are cut diagonally and are provided with grooves so that when the picture frame is assembled the strip is folded into a square and angled connecting members fit ito the grooves. Holes are provided in the ends of the strip near the grooves to be slightly offset relative to the holes in the connecting members so that alignment members can be inserted into the holes of the strip and connectors to bring the mitred corners of the frame into the correct position.
Patent DE-2411754-A1 (DE)
Title: Compact open-air switch-gear - has bus-bar and other units encased as single unit filled with isolating gas under pressure
Inventor: ABILGAARD ECKHARD DR ING
IPC: H02B5/06
Filed: 1974-03-12
Abstract: The open-air switch gear has its bus-bars encased and filled with an isolating gas under pressure. A bus-bar feed-through connects the enclosed parts with the externally exposed parts. The bus-bars, the isolators and the current and voltage transformers are all grouped into an encased single unit with feed-throughs to the outside. The isolating gas is SF 6, air or nitrogen. The advantage of the switch gear arrangement is the compactness (compact whilst still retaining the robust mechanical structure of larger earlier types of open-air switched equipment) achieved by enclosing the bus-bars in with the rest of the units.
Patent DE-2414918-A1 (DE)
Title: Starting mechanism for multi-engine aircraft - has at least two auxiliary gas turbines with secondary generators
Inventor: FRIEDRICH HELMUT
IPC: F02C7/26
Filed: 1974-03-28
Abstract: The compressed air supply from the main engine compressor may be fed to a number of auxiliary turbines, such as those required to drive the air conditioning system or emergency power generation equipment. The air supply is fed to the various units through a duct (18). This, therefore, supplies compressed air to the intake of the auxiliary units maintaining the required turbine output at any altitude. The arrangement provides flexibility in equipment layout which itself simplifies maintenance work. The auxiliary equipment may also be operated from a separate compressed air system on the ground, so that the main turbine need not operate. Similarly the auxiliary turbines may operate on compressed air without the need for ignition and combustion.
Patent DE-2415313-A1 (DE)
Title: Wideband line amplifier with negative feedback - has input and output connecting bridge cct. each with parallel oscillator with impedances
Inventor: GOELZ HUBERT DIPL ING
IPC: H03F1/34
Filed: 1974-03-29
Abstract: Each bridge circuit comprises a series circuit in parallel with the active amplifier part input or output and contains a first impedance with a first parallel oscillating circuit, a reference resistor and a second impedance reciprocal to the first one with respect to the reference resistor. The amplifier input or output signal are applied to the series circuit consisting of the first impedance and the reference resistor, while the negative feedback network is connected to the series circuit consisting of the reference resistor and second impedance. A series resonant circuit with a series damping resistor is in parallel with the parallel oscillating circuit. A further damping resistor is preferably in series with the inductance of the parallel oscillating circuit.
Patent DE-2423230-A1 (DE)
Title: Analogue incremented measuring device - measures travelled distances by concentric coils; one long and two shorter ones
Inventor: GEVATTER THEO
IPC: G01D5/20
Filed: 1974-05-14
Abstract: The two shorter coils are spaced at a distance equal to a multiple of their pitch. They are connected with each other, can move together along the longer coil, and are connected with a travelled distance pickup. The longer coil is connected to a phase sensitive measuring instrument, and the shorter coils are connected to voltages whose phases differ by 90 deg. All coils have bifilar windings. Two shorter coils are provided, one at the longer coil each end, electrically coupled with it. The first two short, movable coils can rotate about the stationary longer coil. A guiding bar is provided parallel to its longitudinal axis, on which the two shorter movable coils can slide, guided by a fork.
Patent DE-2426801-A1 (DE)
Title: Purified aluminium chloride - alkali chloride melt - for battery electrolytes, has improved coulombic yield
Inventor: CROUCH DELL A
IPC: C01F7/62
Filed: 1974-06-04
Abstract: A molten bath of alkali chloride and aluminium chloride is prepd. by heating a mixt. of the alkali chloride and aluminium chloride of commercial quality to melt it, then adding a sufficient quantity of alkali metal (Na, K or Li) to ppt. the impurity metals. The amount of alkali chloride is adjusted to allow for the alkali chloride formed during the pptn. The mixt. is used as an electrolyte in molten electrolyte batteries. The method does not introduce other ionic species into the melt, and coulombic yield is increased.
Patent DE-2428609-A1 (DE)
Title: Record player with tone arm control by cam - has device for lifting and lowering tone arm at will using separate motor
Inventor: STROBEL ROLF
IPC: G11B19/02
Filed: 1974-06-14
Abstract: The cam has a control track (4) starting with a slope and operating a pin (6) which is mounted on a tone arm control lever which transmits to the arm the scanned movement. The cam is driven by a separate motor, which is completely independent from the turntable driving motor, using a worm gear (2). It comprises a device which, when a control element is manually operated, moves the cam disc (1) from its netural position only enough to achieve complete lifting of the tone arm. The cam disc is returned to its neutral position when the tone arm is to be lowered.
Patent DE-2429521-A1 (DE)
Title: Prepn. of conc. aq. sodium borohydride solns. - by diluting mother liquor from a sodium borohydride extraction process
Inventor: WINIARCZYK EDWARD R
IPC: C01B6/00
Filed: 1974-06-20
Abstract: NaBH4 is extracted from an aq. soln. contg. (in wt. %) : 5 - 12.9 NaBH4 and 35 - 47 NaOH by countercurrent extraction with a solvent, pref. isopropylamine. The solvent is distilled and NaBH4. 2H2O crystals are sepd. leaving an aq. mother liquor of about 32% NaBH4 and 5% NaOH. Instead of recycling the mother liquor, it is diluted with NaOH (contg.) soln. to give a stable 13 - 30% NaBH4 soln. The latter is useful in org. hydrogenation and reduction processes. By not recycling the mother liquor the original NaBH4 soln. feed rate can be increased, and the amt. of decomp to borate is reduced.
Patent DE-2435015-A1 (DE)
Title: Steering column indicator switch - has projecting arms on return cam to effect quicker release
Inventor: ERDELITSCH HERBERT
IPC: B60Q1/42
Filed: 1974-07-20
Abstract: The return cam (13) is provided with projecting arms (16, 17) each side of its pivot pin (18). When the return cam is in the working position, the projecting arms rest up to stops (14, 19) fixed in the switch housing (10) and standing with their centre axis on a plane which runs vertical to the return cams centre axis. The projecting arm strikes one of the stops when the steering shaft is turned and causes the pivot pin (18) to be displaced in the elongated slot (11) thereby requiring a smaller angle to neutralise. The projecting arms (16, 17) are pref. of an elastic material, so that the cam is initially returned by contact with the stops.
Patent DE-2462166-A1 (DE)
Title: Paper strip or plastics foil etc. edge smoothing roller - uses air current generated by suction ports in guide surface
Inventor: MAIR FRANZ
IPC: B65H23/34
Filed: 1974-12-18
Abstract: The roller is for smoothing the edges of travelling strip material, having a guide surface (5) for the material (1) on the opposite side to that where rolling takes place. The edge (4) is unrolled by an air current parallel to the guide surface and at right angles to the edge, directed outwards. The current is generated by suction ports in the guide surface, in a row in the direction of movement of the material along the latter. The suction can be generated by compressed-air ejector pumps, combined with the ports into a component also acting as the guide surface.
Patent DE-2505195-A1 (DE)
Title: Polyamide extraction from liquid using liquid jet pump - to maintain standing liquid level in vessel
Inventor: SCHADE HUBERT DR
IPC: B65G3/04
Filed: 1975-02-07
Abstract: A method of continuously removing a solid, pref. polyamide granulate, from a solid-liquid mixture in a vessel, is as follows: the discharge from the vessel is connected to a chamber in which a pressure equivalent to the static liquid pressure of the column within the vessel is maintained; the solids are allowed to flow out through this chamber, the rate of flow being regulated by varying the flow of liquid through the chamber as a function of the upper level of solids in the vessel. No mechanically moving parts e.g. screw extractors, which can be subjected to thigh wear are required. The process is continuous, unlike the system using alternating double locks.
Patent DE-2505842-A1 (DE)
Title: Microprogrammable data processor using integrated circuits - with data memory employing data cards
Inventor: BARTON ROBERT STANLEY
IPC: H04L1/00
Filed: 1975-02-12
Abstract: The data procession has an input circuit, a data memory a logic circuit, a read-out circuit and control means, which are intercoupled for communication between them. The data memory employs data cards each of which has several data zones containing various data characters, with the input circuit having means for receiving further data cards, which similarly have several data zones, containing the data characters. One of the data zones on each of the latter data cards contains the memory address for a corresponding data cards contains the memory address for a corresponding data card contained in the data memory. Pref. the memory data cards contain the programme data and the input data cards contain the operand data.