baber/WOPTO huggingface dataset:
Patent DE-3005699-A1 (DE)
Title: Neutralising mineral-tanned leather, esp. chrome leather - with alkali salt of polymer contg. carboxyl gps.
Inventor: SCHMIDT RUDOLF
IPC: C14C3/06
Filed: 1980-02-15
Abstract: Leather tanned with minerals is de-acidified and/or neutralised by using alkali salts of polymers contg. COOH gps. as acid- binding and/or acid-exchanging agents. The leather is partic. chrome leather. Alkali salts of (co)polymers from (meth)acrylic acid, maleic acid, or hydroxy-acrylic acid are used. The mol.wt. of the polymer is 1,000-30,000 (2,000-15,000), esp. 4,000-8,000 for polyacrylic acids. The salts are used as 10-50 (20-40)% solns. The solns. are brought to pH 4-10 (6-8) by addn. of an alkali, e.g. MaOH, KOH, or Na2CO3. The treated leather is more alkaline than the bath in which it was filled. Acid-exchange is quant. Dye uptake is improved without the use of levelling agents, and Cr-dye reactions are prevented. Non-uniform uptake of anionic dyes and fatty substances is retarded, and better distribution is ensured. Rinsing before and after neutralisation is not necessary. Soft leather with very fine grain can be obtd.
Patent DE-3006717-A1 (DE)
Inventor: DOEMER JOSEF
IPC: H04L25/49
Filed: 1980-02-22
Abstract: 1. A switchable, free running scrambler/descrambler arrangement having a multi-stage clock pulse controlled shift register (S1', S11') in which the outputs of the sixth (S6') and the seventh (S7') stages are connected to the inputs of a first EXCLUSIVE-OR gate (E1') which, together with at least one second (E2) and one third (E3') EXCLUSIVE-OR gate is contained in a first feedback arm, that the outputs of further shift register stages (S8', S11') are respectively connected to an input of a fourth (E4') and a fifth (E5') EXCLUSIVE-OR gate which, together with a following NAND gate (N') and a clock pulse controlled counter (Z') connected to the output of the NAND gate, is contained in a second feedback path, that the multi-stage shift register is preceded by a first additional clock pulse controlled shift register stage (S0') whose output is connected to the input of the second EXCLUSIVE-OR gate (E2') which is arranged in the first feedback path and is additionally connected to the first input (b) of a first change-over switch (U1') whose other input (a) is connected to the output of the third EXCLUSIVE-OR gate (E3') and to the signal output (DA), and that the output of the first change-over switch (U1') is connected to the input of the shift register, whereas the output of the counter (Z') is connected to an input of the second EXCLUSIVE-OR gate (E2') arranged in the first feedback path, characterized in that an eleven-stage shift register (S1' ... S11') is provided, that the output of the first (E1') and the second (E2') EXCLUSIVE-OR gates are each separately connected to the inputs of the third EXCLUSIVE-OR gate (E3'), that an input of the fourth (E4') and the fifth (E5) EXCLUSIVE-OR gates are separately connected to an output of the eighth (S8') and the eleventh (S11') shift register stages, that the output of the fourth EXCLUSIVE-OR gate (E4') is connected to the D-input of a first clock pulse controlled D-flip-flop (D1'), and the output of the fifth EXCLUSIVE-OR gate (E5') is connected to the D-input of a second clock pulse controlled D-flip-flop (D2'), that the Q-outputs of these two D-flip-flop are each separately connected to the inputs of the NAND gate (N'), that a sixth EXCLUSIVE-OR gate (E6') is provided whose inputs are each separately connected to the outputs of the fourth (S4') and the fifth (S5') shift register stages and whose output is connected to the first input of a seventh EXCLUSIVE-OR gate (E7') whose other input is connected to the input (DE') for the signal to be converted and whose output is connected to the D-input of a third D-flip-flop (D3'), that a second change-over switch (U2') is provided whose first input (a) is connected to the Q-output of the third D-flip-flop (D3') and whose other input (b) is connected to the Q-output of a second additional shift register stage (S1') which is connected between the signal input and the first additional shift register stage (S0'), and that the the output of the second change-over switch (U2') is connected to the second inputs of the fourth and fifth EXCLUSIVE-OR gate (E4', E5).
Patent DE-3014709-A1 (DE)
Title: Strip metal coating apparatus - has applicator, immersion, spreader and scraper rollers mounted for side entry of cleaning roller
Inventor: SCHMITZ ANTON
IPC: B05C1/08
Filed: 1980-04-17
Abstract: Coating apparatus for a web (G) passed around a return drum (2) includes a set of rollers supported by a frame (6) adjacent to the drum so that the whole may be moved (8) towards or away from it. A main part (7) of the frame carries the applicator roller (10) on a vertical front part (9) so that this roller can be moved towards the drum. The other rollers are all individually adjusted, and are arranged so that a cleaning roller (37) can be easily introduced.. Used for coating strip metal. A second unit can be used for the reverse side, suitably positioned along the web. The rollers are arranged so that the surfaces can be viewed from an upper position (42) so that the cleaning roller can be brought into operation.
Patent DE-3016825-A1 (DE)
Inventor: HAMPRECHT GERHARD DIPL CHEM DR
IPC: C07D417/12
Filed: 1980-05-02
Abstract: 6H-1,2,4,6-Thiatriazine-1,1-dioxides of the formula    <IMAGE>  I where R1 and R2 are an aliphatic radical, a cycloaliphatic radical or a substituted aliphatic radical, R1 may also be unsubstituted or substituted phenyl, unsubstituted or substituted benzyl, or tetrahydrofurylmethyl and R2 may also be lower alkoxycarbo-lower alkoxy, lower alkylmercapto-carbo-lower alkoxy, lower alkoxy-carbo-lower alkylmercapto, lower alkylmercapto-carbo-lower alkylmercapto, unsubstituted or substituted aryl or unsubstituted or substituted benzyl, R3 is hydrogen, an aliphatic radical, a cycloaliphatic radical or substituted aliphatic radical, R4 and R5 are lower alkyl and R5 may also be hydrogen, X and Y are oxygen, sulfur, sulfinyl or sulfonyl and X1 is oxygen or sulfur, and herbicides containing these compounds.
Patent DE-3017230-A1 (DE)
Title: Aquaria wall suction cup - has plate of silicon rubber WEAKENED ALONG ANNULAR PATH CLEAR OF EDGE
Inventor: KIPPER HORST
IPC: A01K63/00
Filed: 1980-05-06
Abstract: The suction cup is for the inner walls of aquaria and similar wet surfaces, having a plate with a concave underside and a mounting boss on the top. The plate (4) is of silicon rubber, its wall being weakended (6) along an annular path clear of the edge (5), typically by means of a groove in the surface. Inside the groove, the underside can be concave, forming an extension of the part outside it. The distance of the groove from the edge can be equal to at least half the plate dia. The volume of the groove can be at least 1/10th of that formed inside the concave underside in the unloaded state.
Patent DE-3020338-A1 (DE)
Title: Threaded electrode for heart pacemaker - has coiled wire and stop at one end for limiting angular displacement
Inventor: BISPING HANS-JUERGEN DIPL ING
IPC: A61N1/05
Filed: 1980-05-29
Abstract: The electrode device includes a screw thread to be implanted in the human body such as in the case of a heart pacemaker. It derives signals from the body via the electrode screwed into the heart. It is connected to a supply lead, which consists of a conductor and an insulation sleeve and a plug for connection to an implanted heart pacemaker. It has a coiled wire (1) at one end with a stop limiting its angular displacement. The stop consists of a section (3) in the form of a threaded pin inside the head of the electrode. It is made from a material impervious to X-rays.
Patent DE-3024619-A1 (DE)
Title: Hard top for cross country vehicle has integral stiffening ribs - giving permanent form and is esp. of glass fibre reinforced polyester
Inventor: HEFELMANN WOLFGANG
IPC: B60J7/08
Filed: 1980-06-30
Abstract: A hardtop for cross-country vehicles has an open front, a downward sloping forward peak, integral sun-roof and lateral window openings, the roof has longitudinal stiffening ribs, two of which at least optionally contain timber stiffening ribs: there is a transverse stiffening rib near the front edge; the lateral window openings have peripheral stiffening ribs; the lateral opening has a stiffening frame; the bottom edges of the side walls have stiffening ribs. All the stiffening ribs are integrally formed with the component itself. Preferred material is glass fibre reinforced polyester. The hardtop is intended esp. for winter use on vehicles where a different, soft top is used in the summer; it is particularly suitable for repeated removal from the vehicle and replacement without losing its shape.
Patent DE-3026687-A1 (DE)
Title: Plate cutting machine with adjustable table - has circular saw travelling above support table with two parts tilting about longitudinal axis
Inventor: STRAHL FRANZ NIKOLAUS
IPC: B28D1/04
Filed: 1980-07-15
Abstract: The machine for cutting plate material such as strong glass, plastics, wood, metal etc., has a frame (1) with a horizontal work table (9) above which is supported a cutting wheel (7) rotating about a horizontal axis. The wheel and its drive can travel horizontally along an overhead guide (4) to make a cut from end to end of a plate (10). This guide is attached to a hinged frame (2) with its hinges (2) parallel to the guide. The work table is divided into two parts (14,15) with a central hinge (16) also parallel to the guide. This enables the table to be tilted for making bevel cuts. The part (14) of the table under the drive is attached to the tilting frame. The outer edge of the other part (15) is connected to a slider (18) which travels along a cross support (8), to tilt it, and a locking handle (17) at the slide secures it. The slide also incorporates slots (21,23) for the locking handle so that the second part (15) of the table can be instantly locked at angles of 45 or 30 degrees to the horizontal.
Patent DE-3028050-A1 (DE)
Title: Aircraft and/or shipping surface-navigation system - has microprocessor monitor converting measured data for comparison
Inventor: ILLGEN RICHARD
IPC: G01S7/04
Filed: 1980-07-24
Abstract: The system has a memory contg. known terrain data for a voyage which is compared with measured terrain data in a correlation unit. It consists of interchangeable, decentralised modules with associated intelligent units connected together via a data highway system. The system is developed to incorporate a monitor consisting of microprocessor used for different objectives. The monitor obtains flight path variation data via the data system and converts it into ground track values depending on the stored terrain data or its addresses. The flight path data is fed to a matrix table operating as an address generator for the desired terrain data to be extracted from the working memory for comparison.
Patent DE-3037853-A1 (DE)
Inventor: AUSONI MICHEL
IPC: E04D1/16
Filed: 1980-10-07
Abstract: The tile (1) comprises, on its internal face, retaining elements (4) arranged in three rows (A, B, C) which are spaced apart in the direction of the slope of the roof. This distinctive feature makes it possible to offset the tiles thus produced in the direction of the slope of the roof and thus to give, to the limit of each horizontal row of tiles, the appearance of a broken line of chosen course, for the same spacing (E) of the tile laths (5) and without requiring the use of tiles from different moulding operations. <IMAGE>
Patent DE-3038553-A1 (DE)
Title: Dyestuff particle distribution - has heated reserve stores to be vaporised by steam and carried into treatment fluid
Inventor: TRAPPE JOHANNES PROF DIPL CHEM
IPC: C09B67/54
Filed: 1980-10-11
Abstract: The reserves of dyestuff or fabric treating agents are embedded or surrounded by the heater, for the steam flow to pass through and carry dissolved particles into the treatment fluid. The steam flow passes through the store of particles so that it becomes superheated in this zone, to vapourise some particles to be carried by the steam into the fluid to be applied to the fabric. The particles are therefore thoroughly dissolVed in the fluid. The layout reduces energy consumption in providing a fine distribution of dyestuff.
Patent DE-3039041-A1 (DE)
Title: Fuels obtd. from vegetable residues from cotton harvesting - by grinding, opt. briquetting of the powder and opt. pyrolysis to coke
Inventor: FISCHER KARL OTTO PAUL
IPC: C10L5/44
Filed: 1980-10-16
Abstract: A process is claimed for the conversion to fuels of the vegetable residues of cotton harvesting. Stalks, branches and leaves of the cotton plant and cotton capsules and fibres are ground to a 0.1-200 micron powder, from which the small amt. of remaining fibres (linters) are removed in vibratory sieves. The powder can be burnt in power stations or gas turbines, or gasified, or hydrogenated in mixt. with heavy oil; or it may be mixed with water and pressed, the pressings being then burnt or pyrolysed. The potential renewable supply of fuels by the process is very large: world-wide it is the equiv. of about 10 million barrels of oil per day. The linters are a valuable by-prod.
Patent DE-3039194-A1 (DE)
Title: Return flow passage for cross-flow fan - has hollow cut=off contg. passage, whose flow resistance increases sharply with increasing fan output flow
Inventor: HOENMANN WINFRIED DR ING
IPC: F04D17/04
Filed: 1980-10-17
Abstract: The cross-flow fan (10) comprises a cut-off (16) which extends to within a short distance from the impeller (12) periphery and separates the inlet chamber (13) from the outlet (14). This cut-off contains a cavity (33) which forms a return-flow passage (25) between slots (24,26) connecting with the space (14) and the blunt point (17) of the cut-off respectively. The geometry of the inlet (24) to this passage (25) is such that the resistance it presents to the entering return flow sharply increases with the volume moved by the fan (i.e. as system resistance is reduced). This counteracts deterioration of the fan characteristic (pressure and instability) and fan efficiency.
Patent DE-3040482-A1 (DE)
Title: Seat belt retractor blocking mechanism inertia element - is made of unhardened steel with thin layer of smooth hard plastics coating, e.g. polyamide
Inventor: RAAB MAX ING GRAD
IPC: B60R22/40
Filed: 1980-10-28
Abstract: The inertia mass (2) operating the blocking system of a seat belt retractor mechanism is seated in a nest with sloping surfaces. When, due to sudden deceleration of the vehicle the inertia mass (2) is shifted from its seat, it lifts lever (3) which then engages with the nearest tooth of the ratchet wheel (4). The inertia mass (2) is a ball (5) made of cheap unhardened steel pref. finished with a rough surface, onto which a thin layer of hard smooth plastic coating is applied, e.g. polyamide.
Patent DE-3042531-A1 (DE)
Title: Lapping cables with insulation or screening tapes - using two taping heads with automatic speed doubling of remaining head if other is out of service
Inventor: FEESE WOLFGANG ING GRAD
IPC: H01B13/26
Filed: 1980-11-07
Abstract: The procedure is typically for cable making by a contiguous process but can be used also to other products where a number of strands have to be spirally bound together. Two heads (10,15) using the same tape are employed in series on the cable (8). Each applies tape at a preset overlap. Both heads operate synchronously and at the same speed with the result that two identical layers are applied. When one tape head is taken out of service, for example for replenishing the tape reel, or if a tape breaks, the other head is automatically increased in speed to twice the normal value. This condition persists until the affected head is put back into operation. The result is that, in the event of such a stoppage, there is no part of the cable which is untaped. The correct thickness is applied over a certain length, but the tape overlap is, of course, increased.
Patent DE-3102149-A1 (DE)
Title: Attachment element for boards in the form of panels
IPC: F16M13/00
Filed: 1981-01-23
Abstract: The invention relates to an attachment element for boards which are in the form of panels and have a block, having an opening which passes through the block or leads into the block, at least one hole which is arranged transversely with respect to the opening and passes through from the surface of the block to the opening, and at least one incision which is provided alongside to the opening and extends transversely over the surface of the block.
Patent DE-3110881-A1 (DE)
Title: Paint spray gun with pneumatic paint atomisation
Inventor: STRICH PETER
IPC: B05B7/12
Filed: 1981-03-20
Abstract: Paint spray gun with pneumatic paint atomisation, a valve cone which is designed as air shut-off valve and can be operated by means of a trigger and also a regulation cock for adjusting the air throughput being arranged coaxially in a housing bore.
Patent DE-3115933-A1 (DE)
Title: Self-ignition internal combustion engine with a rotationally symmetrical piston recess
Inventor: WOLTERS GERHARD DIPL ING
IPC: F02B3/06
Filed: 1981-04-22
Abstract: The invention relates to a self-ignition internal combustion engine with a rotationally symmetrical piston recess (3), which has a tapered side wall (5) and in which the inlet port (10) is smaller than the largest diameter of the piston recess (3). In addition, an eccentrically arranged injection nozzle (13), injecting into the piston recess (3) so as to wet the wall, is provided, the fuel jets (14, 15, 16) of which strike the side wall (5) centrally approximately in one plane. In order to avoid wetting the head (crown, top) (6) with fuel still in the liquid state, a torus (7) with a sharp torus edge (11) is provided. In addition, a flange (20) is arranged on the neck (4) of the inlet port (10), which flange forms a discontinuous transition to the inlet port (10) and causes a swirling (22) in this area, which counteracts the wall-wetting fuel rising towards the inlet port (10). <IMAGE>
Patent DE-3116929-A1 (DE)
Title: Solar liquid evaporator
Inventor: BOETTCHER ALFRED PROF DR
IPC: C02F1/14
Filed: 1981-04-29
Abstract: A novel solar liquid evaporator is proposed which is composed of plastic tubes in which, instead of the hitherto conventional standing salt water of a height of at least a few millimetres, the salt water flows through in a black nonwoven web in a capillary manner. The vaporised water is transported away by artificial ventilation, in special cases by natural draught, and condensed outside the collector.
Patent DE-3117828-A1 (DE)
Title: Tunnel furnace with baking ducts operated in opposite directions and method of operating the same
Inventor: HELMHOLD FRIEDHELM
IPC: F27B9/02
Filed: 1981-05-06
Abstract: The invention relates to a method for the thermal treatment (in particular baking) of ceramic materials and to a tunnel furnace which is characterised by baking ducts operated in opposite directions. The preheating, baking and cooling zones are separated from one another by extendable slides. In the cooling and preheating zones, which in each case lie mutually opposite, the heat transfer medium is circulated horizontally in the longitudinal direction by overflow ducts, the fans preferably being arranged at the cold crossovers at the ends of the furnace. Waste gases carried off from the firing zone are guided past recuperators in the preheating zone for heat recovery. By adding fresh air and carrying off parts of the media situated in the circuit, the preheating zones can be operated as dryers. By means of the design according to the invention of the device and the corresponding operation of the method, the waste gas quantities are reduced and spurious-air intrusions are avoided.
Patent DE-3119161-A1 (DE)
Title: Self-clocked full-bridge circuit as a four-quadrant controller for electric motors
Inventor: FIEBIG ARMIN ING GRAD
IPC: H02P7/281
Filed: 1981-05-14
Abstract: A method is specified by means of which a full bridge in accordance with Fig. 1 is used for four-quadrant control (regulation) of electric motors, which full bridge controls the intensity and direction of the currents flowing through the motor inductance (14) via controllable switches (3, 4, 7, 8), especially semiconductor one-way switches, in a self-clocking manner. Only one of the controllable switches (3, 4, 7, 8) of a selected circuit is always pulsed by the bridge, especially in order to reduce the switching losses, while the other switches are merely switched on or off in accordance with the required current direction. When the switches are driven in a suitable manner, this results in a lower switching frequency of the pulsed switches.
Patent DE-3120361-A1 (DE)
Inventor: BELLUT HANS DIPL CHEM DR
IPC: C07C67/00
Filed: 1981-05-22
Abstract: 1. A process for the production of N-benzyl-N-isopropylpivaloylamide from a benzyl halide, isopropylamine and pivaloyl chloride, characterised in that 1 mole of benzyl halide is reacted with 1.5 to 3, preferably 2, moles of isopropylamine and 1.25 to 1.75, preferably 1.5, moles of alkali metal hydroxide in the form of an aqueous solution, the concentration of which is so chosen that the alkali metal halide formed during the reaction only just remains in solution, the reaction mixture is kept for 2 to 3 hours at a temperature of 30 to 50 degrees C, the N-benzyl-N-isopropylamine obtained by distillation of the organic phase is introduced into a two-phase system consisting of a) toluene and/or any other alkylated aromatic having up to 10 C atoms in total and b) 20% strength aqueous sodium hydroxide solution, the amount being so chosen that not only is the hydrochloric acid formed during the reaction neutralised neutralised quantitatively, but the aqueous phase also remains alkaline after completion of the reaction, at a temperature of 0 to 60 degrees C, pivaloyl chloride is added, the mixture is kept for one hour at a temperature of between 0 and 60 degrees C and thereafter the product formed is isolated in a conventional manner.
Patent DE-3120617-A1 (DE)
Title: Process for the optical representation of components to be combined
Inventor: WILLKE EDUARD
IPC: G09F19/18
Filed: 1981-05-23
Abstract: Published without abstract.
Patent DE-3122387-A1 (DE)
Title: Glass-encapsulated semiconductor diode and method of manufacturing it
Inventor: TORREITER ANTOINE DIPL ING DR
IPC: H01L23/08
Filed: 1981-06-05
Abstract: The invention relates to a glass-encapsulated semiconductor diode (double-plug diode) and its method of manufacture. The anode and cathode regions of the diode are composed of a titanium/copper layer. Mounted on the copper layer of the anode region is a copper post which, like the rest of the anode region and the cathode region, is coated with pure tin or a tin-containing alloy. The semiconductor diode according to the invention is remarkable for readily solderable contacts which increase the tensile strength of the finished diode and, at the same time, avoid possible ion migration and expensive contact metals.
Patent DE-3130390-A1 (DE)
Title: Refrigerating aggregate
Inventor: GRAEF HANS
IPC: F25D17/02
Filed: 1981-07-31
Abstract: The invention relates to a refrigerating aggregate for adapting the capacity of cold water aggregates to the heat generation of objects to be cooled at constant wild-water forward-run temperature. This capacity adaptation is in this case to be achieved with low outlay. The invention envisages to this end that the cooling system is dimensioned in such a manner that the cooling capacity exceeds under all operating conditions the heat capacity to be carried off to the consumer (7). The difference between cooling capacity and heat capacity is equalised via a heat exchanger (8). For controlling the temperature in the cooling-water circuit (1), a control device (9) is provided. <IMAGE>