baber/WOPTO huggingface dataset:
Patent DE-2414851-A1 (DE)
Title: Square wave voltage output cct. - constant voltage and rectified sinusoidal input are differenced to generate constant RMS value
Inventor: KUCHYNKA KAREL
IPC: G05F5/00
Filed: 1974-03-27
Abstract: A regulating circuit enables a varying A.C. voltage to be processed such that a square wave output is generated with a constant r.m.s. valve. An operational amplifier connected in a differencing mode forms the basis of the circuit. The input to the regulating circuit is passed to a full wave rectifier to provide one input (Us) to teh differencing amplifier. The other input is represented by a constant drive voltage (Ub). In this situation the amplifier output is in the form of a square wave of a certain amplitude (UA1) and of a time duration fixed by the amplitudes of the input signals. If the inputs increase the output pulse amplitude increases and the duration reduces. The r.m.s. value of the wave form remains constant.
Patent DE-2415447-A1 (DE)
Title: Closed cycle gas turbine arrangement - with turbine and compressor stages on a common shaft surrounded by heat exchangers for gas cooling
Inventor: KUMPF HERMANN DIPL ING
IPC: F02C1/10
Filed: 1974-03-29
Abstract: Gas turbine arrangement for closed gas cycle where the turbine and the compressor stages are located on a common shaft and with heat exchangers being positioned between the turbine in-and outlets and the compressor stages. The turbine and the compressor stages are concentrically surrounded by the heat exchangers to cool the gases and to utilise the exhaust heat. The turbine inlet side is connected to the reactor core of a gas cooled core reactor through the interior of a co-axial pipe. The turbine and the compressor stages are positioned on a vertically located shaft with the co-axial pipe connecting the turbine to the reactor core leading to the front side of the turbine.
Patent DE-2416540-A1 (DE)
Title: Measuring device for wheel loads of rail vehicles - consists of test rail sections with pickups attached to rail webs
Inventor: OLTEANU CRISTEA DIPL ING
IPC: G01G19/04
Filed: 1974-04-05
Abstract: A pickup consists of eight elements connected in a bridge and its output signal is amplified and applied to a display unit. In order to increase sensitivity, the web thickness of the test rail is reduced by machining it on both sides at the points where the pickup is attached. In order to read the load directly in weight, a resistor is connected in series with the bridge, and its resistance is adjusted during the course of calibration tests with known weights. The pickups consist of strain gauges attached to the machined sections of the web in an inverted 'V' formation. Two sets of strain gauges are used, linearly spaced along the rail.
Patent DE-2421135-A1 (DE)
Title: Lawn mower cuttings collector device - consists of a hopper in the bottom of which is an ejector-spreader
Inventor: MICHAELIS KARL-HEINZ
IPC: A01F29/10
Filed: 1974-05-02
Abstract: The collector system consists of a primary collector picking up the waste material and conveying it to a secondary machine which is preferably attached to it. The secondary machine consists of a distributor with hopper into which waste material is deposited from the primary machine. An ejector-spreader with fan is incorporated, discharging the material from the hopper through a pipe. A threshing device is connected in front of the distributor and consists of two contra-rotating cutter-rollers mounted on horizontal axles above the hopper base, and cutting up the crop and conveying it to the fan. An oil engine drives the fan and thresher. The secondary collector is preferably mounted on a two-wheeled chassis. The intake opening is rectangular, with its length corresponding to that of the cutter-bar. The fan axle runs in the direction of travel, and the ejector direction of the distributor and pipe crosswise to the direction of travel.
Patent DE-2437004-A1 (DE)
Title: Radial piston engine for fluids - has sealing between pistons and internal cam
Inventor: BINHACK JOSEF ING GRAD
IPC: F01B1/06
Filed: 1974-08-01
Abstract: Radial piston engine for fluids comprises an internal drive cam (4), and a housing part with cylinder bores for at least one hollow cylindrical piston (10). Between the cam, which has a spherical contact surface, and the pistons, is a sealing ring (20) acting as joint member, of which the surface sliding over the cam is conical: the other surface of the sealing ring, which lies adjacent to the base of the piston, which is also conical, is spherically curved with a radius of curvature smaller than the radius of the cam sphere. The piston may comprise at its base an outwardly projection portion (13) of increased wall thickness.
Patent DE-2443302-A1 (DE)
Title: Sound-absorbent perforated tube mounted plate radiation screen - is fitted with perforation aperture edges extending outside unperforated surface
Inventor: MAKARA GYOERGY DIPL ING
IPC: F24D3/16
Filed: 1974-09-10
Abstract: The radiation or convector screen, which may be used for heating or cooling effects in a hangar-type building, or elsewhere, where there is a high noise level, consists of a perforated plate which is welded, cemented or soldered to one or more tubes, and which has a heat-insulating layer on one side. The edge (5) of the border of the apertures which make up the perforation (4) extend, either fully or partially outside the non-perforated surface of the plate (2). The perforation may be formed by punch-cutting and local deformation of the material making up the plate, and the cross-sectional surfaces of the apertures may extend vertically to the plate level and the tubular axis.
Patent DE-2446705-A1 (DE)
Title: Refractory lining esp. for rotary furnaces - comprising pre-fired, tongued-and-grooved blocks with anchors cast in
Inventor: STRUZIK ERICH
IPC: F27B7/28
Filed: 1974-09-30
Abstract: An anchoroing element consisting of a split bolt and a contoured plate is cast into the refractory block during mfr. at one end face of the block and at a point near the junction of the block with the furnace shell. The plate follows the contour of the end face of the block and is welded to the furnace shell. The weld bead is accommodated in a recess in the face of the adjoining block. The cost of mfr. and installation of the blocks is reduced, since only every third or fourth block requires an anchor.
Patent DE-2449741-A1 (DE)
Title: Fasteners for holding door lock plate on frame - has rotating locking nut plates within profile for lock plate bolts
Inventor: ISKER KLAUS
IPC: E05B9/08
Filed: 1974-10-19
Abstract: The door lock fastening arrangement is used for holding the lock on a door frame made from hollow profiles. The fastening bolts reach into the profile and engage with clamping nuts resting against profile internal walls. No special fastening components are held on the frame components. The fastening bolts are arranged on the lock plate which is placed on the profile outside surface. The clamping pieces which are pushed through the lock pocket opening (5) are plates (9) rotated by the fastening bolts (8). The clamping nut plates contact by their outside edges with the profile in the rotation end position.
Patent DE-2450403-A1 (DE)
Title: Boiling plate with heating element - element is embedded in compound directly adjacent to plate body surface
Inventor: KOTSCH HEINZ
IPC: F24C15/10
Filed: 1974-10-23
Abstract: The compound between heating element and plate body is a good heat conductor. The space between the plate (1) body surface and a base plate (4) firmly joined to the plate body, contains an insulating layer (11) of a good heat conducting material in intimate contact with the plate body surface (8), and an insulating layer (12) so treated that its volume is expanded. The heating element wire (13) pref. lying entirely in one plane, is placed between the two insulating layers (11, 12). A firm and reliable connection between the element and the plate body is economically realised even at high temperatures.
Patent DE-2451552-A1 (DE)
Title: Production system for micro films from static originals - has light measurement and control system for exposure microfilm exposure
Inventor: MISCHO KLAUS DIPL ING
IPC: G03B27/80
Filed: 1974-10-30
Abstract: Device for reproduction of static originals onto a static microfilm with pivotable light meter to measure and subsequently control the requisite film illumination levels, has the pivotable mirror (U) mounted in the ray path between objective (O) and microfilm (M). When in position the original image is formed in a stripe fashion on a row light sensors (P) which are situated parallel to the pivot axis of the mirror (U). The measured value is transferred from the sensors (P) to a store and the resultant exposure time controlled by a controller operating shutter blades (C1, C2).
Patent DE-2453301-A1 (DE)
Title: Steam or coater turbine - has rotor with blades capable of 90 degree sivivel against direction of rotation
Inventor: HEINRICH WERNER
IPC: F01C1/44
Filed: 1974-11-11
Abstract: The arrangement is such that, where the steam or water impinges on the blades, each blade swivels outwards about its root pivot into a radial position. It is claimed that the braking action due to reverse flow between the blades is thereby eliminated and the efficiency of energy conversion thus increased.
Patent DE-2453682-A1 (DE)
Title: Warp knitting machine, esp. a sew-warp knitter - laying in the weft with fewer broken ends
Inventor: KEMTER HEINZ
IPC: D04B23/12
Filed: 1974-11-13
Abstract: In the yarn supply arrangement for a warp knitting machine, such as a new-warp knitter for the prodn of fabrics with weft threads bound in at right angles to the line of motion of the carrier fabric, the weft comes from a supply creel in the immediate proximity of which it passes a first braking point, and continues as a uniform chain of threads through guides to be drawn into a weft thread laying-in device which moves between two reciprocating weft transport details, by means of which the threads are opened out and fed to the stitch forming station of the machine. Close behind the first braking point, a typical frictional yarn delivery arrangement is positioned directly before a standard thread guide located parallel to the opened-out weft threads which divides the chain into >=3 equal separate chains of threads moving in similarly inclined planes to the weft laying-in device. The tension on the weft ends is reduced and maintained constantly, eliminating diagonal striping.
Patent DE-2458208-A1 (DE)
Title: Asymmetric reverse osmosis membrane prodn - by casting dilute soln of cellulose ester and pore former
Inventor: KESTING ROBERT E DR
IPC: C08L1/10
Filed: 1974-12-09
Abstract: A soln. contg. =15% wt. of a cellulose ester selected from cellulose acetate, diacetate, triacetate, propionate, butyrate, cyanoethylate, methacrylate, or mixts. of 2 or more of these, or mixed esters of the above acid moieties, in a solvent selected from dichloromethane, acetone and dioxane, contg. a pore-forming matl. selected from methanol, ethanol, isopropanol and isomeric butanols and pentanols and water, which has a boiling pt. >=30 degrees C. higher than the solvent, is cast into a thin film and solvent and pore former allowed to evaporate. The membrane is used in desalination and purificn. of water sepn. of org. liqs. concn. of solns. etc. The process is simpler than prior art, and the membranes are produced dry, and can be dried and rewet a number of times without special precaution, without loss of activity.
Patent DE-2458834-A1 (DE)
Title: Double-based propergol blocks for rockets - obtd. by malaxating components to obtain homogeneous granules
Inventor: NOLTE HELMUTH DIPL CHEM DR
IPC: C06B21/00
Filed: 1974-12-12
Abstract: Double-based propargol blocks for rockets, launching charges, etc. comprising nitrocellulose, explosive oils, gelling agents, combustion moderators, stabilisers, lubricants, (in)organic oxygenated bodies and additives are manufactured by first mixing in a malaxator at elevated temps. a portion of the explosive oils in the usual form of an explosive gelatine or a pre-hardened gelled intermediate product contg. some of the nitrocellulose required for the final block, wetted by alcohol, together with another portion of the requisite nitrocellulose wetted by appropriate organic displacement agents, having a concn. of 90% or more, and small amts. of true solvents for the nitrocellulose and the usual additives. The fluid granules produced from this mixt. are dried to a moisture content of 0.1-0.8% and malaxated to form batches of homogeneous granules of any wt. which are then converted into homogenised granules in known manner. Homogeneous mixing is achieved for all amts. of propergol prepd. The ratio between nitrocellulose and explosive oil can be varied.
Patent DE-2500749-A1 (DE)
Title: Bucket excavator toy vehicle - has rotatable pivoting digging or grab arm mounted on axle parallel to pivot axis of outrigger
Inventor: MEIDENBAUER GEORG
IPC: A63H17/12
Filed: 1975-01-10
Abstract: A toy vehicle having a pref. rotatable and interchangeable working device fixed to the vehicle section of the toy, in the form of a bucket excavator or digger device with an outrigger mounted in a pivotable manner on the vehicle section having a grab or digging arm attached to it to which is affixed the digging shovel, has an axle running parallel to the pivot axle of the outrigger which has the grab or digging arm attached in such a way that its length is adjustable and it can be pivoted about its longitudinal axis.
Patent DE-2512185-A1 (DE)
Title: Tongue and groove wood panel production - has desired panel length produced on press and heat applicator
Inventor: VETTERLI HANS
IPC: B27F1/16
Filed: 1975-03-20
Abstract: The process is for producing semi-endless panels (11) of wood. This involves tonguing and grooving, and gluing the ends of the panels (pl) before carrying them to the feed area for heat-pressing and aligning the last one. One middle panel is retained so that it can be pressed slightly backwards in the pressure direction. The last panel is pressed forwards for tongue-and-groove connection with the next ahead. All are then moved forward by a panel length, where heat-pressing, pre-pressing and holding-down zones are opened, for the front end of the second panel and rear end of the first to come together in the heat-pressing zone.
Patent DE-2513899-A1 (DE)
Title: Monolithic thermoplastics filter supports and frames - are lightweight with denser outer skin easily handled and corrosion resistant
Inventor: KUPF LUBOMIR
IPC: B01D25/00
Filed: 1975-03-27
Abstract: A filter plant is constituted of filtr cloth supports, filter inserts and filter frames; all these are of monolithic construction, the filter cloth supports having grooves on their surfaces and the filter frames having at least one filling opening in them. The components are all of monolithic thermoplastics construction, the density of the outer layers of the filter supports and filter frames being greater than the internal density of these same components. In particular, the supports and frames may contain 0.1-75% of an inorganic filler, such as glass beads, fibres or the like. In addition, the edges of the frames may be lightened by the forming of oval or circular recesses in them. Light in weight and therefore easier to handle than conventional metal or wooden frames. In particular the incorporation of the filler materials and recesses leads to the weight reduction. The monolithic construction means that all the parts can be made from thermoplastics and they are therefore highly resistant to corrosion. The "run-in" time required to obtain a good seal with timber frames is eliminated.
Patent DE-2522869-A1 (DE)
Title: Electrical disconnection system for sand spreader - has sand container operated by voltage difference between wheel driven generators
Inventor: WERR THEODOR DIPL ING
IPC: B60B39/10
Filed: 1975-05-23
Abstract: The sand spreader is fitted to the front of the vehicle which is for use in icy areas and it is envisaged that about 10 kg. of special sand is carried. There are two wheel driven dynamos (G1 and G2) that operate via a rectifier. When the speed of one wheel is different to the other a voltmeter indicates the difference in voltage generated. (230 rpm difference produces 1 volt). This operates a relay opening the valve (V) of the pressure reservoir (D) and sand is blasted in front of the wheel. At the same time, a warning light indicates to the driver so that correcting action can be taken. The relay can be bypassed, the sand spray being operated by pressing a knob.
Patent DE-2528650-A1 (DE)
Inventor: STEUTEKNUEL WILLI
IPC: E01B9/48
Filed: 1975-06-27
Abstract: The new rail fastening has a pressure plate (4), the end of which facing away from the rail foot (2) has an angle (8) directed downwards to the bearing plate. This angle encloses, together with the side parts (9, 10, 11), the space under the pressure plate and forms an improved mounting for the elastic clamp (5) which transmits the pressure force of the fastening screw (7) to the rail foot. <IMAGE>
Patent DE-2535328-A1 (DE)
Title: Antihypertensive chromanol esters - 2,2-dimethyl-4(1-(2-naphthylmethyl)-tetrahydro-4-pyridyl)-7-alkyl- -5-chromanyl aminoalkanoates
Inventor: FAKE CHARLES SYLVESTER
IPC: C07D405/04
Filed: 1975-08-07
Abstract: Novel chromanol derivs. of formula (I) and their acid-addn. salts. (where n = 3 or 4; X is 1-4C alkylene; R is H or Me; R1 and R2 are H or 1-4C alkyl, or together form part of a 5- to 7-membered alicyclic ring and in partic. were R1 = R2 = Et, X = (CH2)3, R=H, and n=3, and its acid-adn. salts. are water-soluble ester forms of the antihypertensive chromanol derivs. (II) described in the Parent Patent; they can be administered by injection as well as orally. Cpds. (I) can be prepd. by acylating the corresp. chromanol of formula (II): with a reactive deriv. of an acid of formula R1R2N-X-COOH, pref. an acid-addn. salt of the corresp. acid halide or anhydride or of the free acid in the presence of a dehydrating agent, e.g. dicyclohexylcarbodiimide (DCCD).
Patent DE-2538232-A1 (DE)
Title: Liquid surfactant hydroxy ester mixture - specified polyols reacted with aliphatic acid then with aliphatic acid
Inventor: NASKAR SASANKA SEKHAR DIPL CHE
IPC: C07C67/08
Filed: 1975-08-28
Abstract: A surfactant compsn. comprises a mixt. of a hydroxyesters which are condensn. prods. of (a) 1 mol. of triethanolamine, glycerol, trimethylolpropane or pentaerythritol or a mixt. of these with (b) 1-2 mols. of a satd. 16-26C aliphatic or cycloaliphatic carboxylic acid or their mixtx. and (c) 0.1-0.9 mol., pref. 0.1-0.7 mol. of a 3-10C aliphatic dicarboxylic acid or a mixt. of these. The prods. are used as emulsifying agents for prepg. water in oil emulsions and find application in the prepn. of fibres or lubricants and in cosmetic and pharmaceutical applicns. The compsns. are easily prepd. and economic. Avoiding the use of unsatd. acids frequently used in prods. of this nature, avoids the disagreeable smell and tendency to oxidise of these prods.
Patent DE-2540410-A1 (DE)
Title: Double layer greenhouse roof - has insulated compartments closed one end, formed by cross walls
Inventor: MUENZ DIETRICH
IPC: A01G9/14
Filed: 1975-09-11
Abstract: A greenhouse roof has a fixed undersection and a movable top roof section, both of which have an outer glass roof and an underneath cover of translucent or transparent material, esp. plastics. Thermally insulated compartments are formed between the glass roof surface and the inner cover. A cross-wall acts as a pivoting flap. The edge of the roof supports a gutter and the flap extends to the inner side, up to a stop bolt. The other end of one insulated compartment is closed by a purlin underneath which is a cross-wall flap. The bottom end of the inner cover of the top roof section rests on one side of an angle forming, together with a lengthwise support, a cross-wall for the insulated compartment. Channels act as spacers fixed on one side to the glass roof surface, and on the other side support the inner cover.
Patent DE-2542636-A1 (DE)
Title: Oscillating quartz crystal layer thickness measuring device - has digital system comprising measurement crystal and oscillator
Inventor: BAN ANDREAS DIPL ING
IPC: G01B7/06
Filed: 1975-09-24
Abstract: A measurement oscillator is connected to the crystal output. A rectangular signal shaper, a period measuring device and store are provided. A zero balancing unit at one input of the store is connected to the input of a difference former. The output of the latter is connected to a thickness indicator. A pulse frequency multiplier and a counter connected in series are inserted between the rectangular signal former and period measuring device. A thickness adjuster is connected to the multiplier's other input. The measurer is based on the periodic time change principle. It can be developed by using a speed measurer connected to the output of the difference former.
Patent DE-2612487-A1 (DE)
Title: Rotary piston refrigerant compressor for vehicle air conditioning - has inlet ports on inside of four epitrochoidal piston lobes
Inventor: GASCHLER ERICH DIPL ING
IPC: F04C/
Filed: 1976-03-24
Abstract: The compressor has a piston (3) mounted on a crank of a shaft in a cylinder (5). The piston has a pinion which engages an annular wheel to make the piston rotate on its own axis as it travels round the inside of the cylinder. The piston has four epitrochoidal lobes and the cylinder has five correspondingly shaped recesses. These form variable volume working spaces (12-16) as the piston revolves. Admission to the working spaces is through ports (19) in the piston lobes. Refrigerant enters these from a space (20) within the piston which it reaches through a passage (21) in the end of the piston. A valve disc (23) inside the piston attached to the crank regulates the opening of the ports.
Patent DE-2612952-A1 (DE)
Title: Flexible plate suction handling equipment - uses cup placed near edge to bend upwards for ease of removal
IPC: B65G47/91
Filed: 1976-03-26
Abstract: The equipment grips a flexible plate of sheet metal, plastic cardboard etc, using a suction cup. The cup (7) is placed on the plate near the edge and the portion of the plate covered by the cup is bent upwards at the edge under the effect of the vacuum, thus allowing removal of the particular plate from the stack. Cups can be applied simultaneously to two adjacent corners of the plate, and subjected to a vacuum at the same time. Each cup can have a suction surface enclosed by a sealing lip, and bosses are provided on the surface to prevent the plate fitting too closely against it. A protrusion on the suction surface combines with a sealing lip of sufficient flexibility to cause arching of the plate within its elastic limit.
Patent DE-2613859-A1 (DE)
Title: Grinding disc dressing machine using dressing diamond - has dimensions chosen so that all slopes for all dressing profiles are small
IPC: B24B53/075
Filed: 1976-03-31
Abstract: Device for dressing grinding discs with a dressing diamond which is passed around an axis of rotation where the dressing diamond (22) can be selectively passed about a further axis of rotation which is transposed with respect to the first axis (2) within a common plane. Specifically components such as shafts (80, 12) and arms (64) can be turned about the individual axes (2, 10) each of which (12, 64) is supported on the others (80, 12). The dimensions are so chosen that the slopes for all dressing profiles are small and are partially below (+-) 5 deg. The displacement or slope of the rotatable components (12, 64) can be adjusted by a set screw (84, 70) which opposes a spring force.