baber/WOPTO huggingface dataset:
Patent DE-2556787-A1 (DE)
Title: Pipe bending mandrel - with central cavity for cooling medium circuit prolongs active service life
Inventor: MUELLER KURT DR ING
IPC: B21D9/12
Filed: 1975-12-17
Abstract: A bending mandrel to bend lengths of pipe to elbows has a diameter which rises to the desired elbow bore at the discharge end. The mandrel is hollow and is cooled by a fluid, gaseous or liquid metal medium. The cooling can be based on a concurrent or counter flow or on a closed circuit system. Device prevents the straightening effect of the hot pipe sections which are pushed over the mandrel. It is suitable even for pipes of small diameter and thick walls and for pipes made of high-alloy steel.
Patent DE-2556984-A1 (DE)
Title: Support frame for wall-mounted toilet - has horizontally adjustable carrying frame and C-shaped cistern brackets
Inventor: GLOCK ERWIN
IPC: E03D11/14
Filed: 1975-12-18
Abstract: The support frame is for wall-mounted toilet and built-in cistern. It has two vertical support members with fastening screws for the toilet. The upper ends of the vertical members are connected to a transverse member carrying an upwardly projecting support for the cistern. The carrying frame (3) and two separate cistern brackets (10), forming the carrying unit, are fastened horizontally adjustable to the transverse member (5). This consists of a C-shaped rail with displaceable slide sections, each having a fastening screw. Each screw may be connected to a strap of a vertical support, and cistern retainer.
Patent DE-2558513-A1 (DE)
Title: Off peak heating system with heat pump - draws stored water to supplement heat pump for peak demand
Inventor: KOHNKE HANS JUERGEN DIPL ING
IPC: F24D11/02
Filed: 1975-12-24
Abstract: Heating unit contains a heat pump followed by continuous flow electric heaters operating at a low off peak tariff. It supplies primary hot water to a domestic hot water calorifier and to space heaters. The space heaters are fed through a three way diverter valve and a branch from the flow to the valve fills e.g. three storage vessels with primary water heated during the off peak period. A limit switch on the diverter valve operates the solenoid valves and pumps so that when the valve opens fully for maximum demand stored hot water is added to the flow coming directly from the heat pump. This arrangement provides rapid warming up at times of peak heating demand.
Patent DE-2601627-A1 (DE)
Title: Cable connector for LF balancing of communication cables - connects ends of multicore cables and balancing capacitors using jumper wires
IPC: H02G15/117
Filed: 1976-01-17
Abstract: Jumper wires are soldered to plug boards for connection of cable wires, and plugs are provided with circuit boards to which the balancing components esp capacitors are soldered. A jumper wire leading to a plug board is soldered to each cable wire. The plug board can be connected to a socket board, serving only for measurement purposes, cable wires are suitably spliced for measurement, and the plug boards are on the outside of the spliced joint. Balancing components on the circuit boards are connected to the plug boards.
Patent DE-2602290-A1 (DE)
Title: Textile thread and strip coiler - maintains constant winding tension with thyristor controlled motor
Inventor: ZEGGERT WERNER
IPC: H02P27/02
Filed: 1976-01-22
Abstract: Thyristor control modifies an asynchronous three-phase motor's rpm-torque characteristic curve to a hyperbola, rapidly maintaining constant strip winding tension, with fine response. A tension positioned strip loop controls a thyristor, varying one phase about a mean setting. The transformer supplied motor (M) winds a coil (Sp). Tensioned (W) strip passes around a variable drop loop (P). Loop travel rotates a cam (B), setting an inductor transducer (S), feeding a pulse generator (JG) setting the thyristor's firing time. The pulse generator's supply derives from a transformer across the motor's transformer and star centre point, with zener diode stabilization.
Patent DE-2604421-A1 (DE)
Title: AC voltage monitoring circuit - has small capacitor between capacitor and input terminal for one or more commutation capacitors on thyristor inverter
Inventor: HEITZIG THEO ING GRAD
IPC: H02H7/122
Filed: 1976-02-05
Abstract: A.c. voltage is collected from a commutation capacitor of a single phase full-wave rectifier, and its rectified voltage is applied through a resistor to a d.c. relay. It initiates a switching process disconnecting the thyristor inverter from its supply source if any disturbance appears in the commutation process. A capacitor (8) whose capacitance is smaller than that of the commutation capacitor is inserted into a connection (3) between a commutation capacitor (1) and an input terminal (5) of the single phase full-wave rectifier (7).
Patent DE-2607234-A1 (DE)
Title: Concrete pipe split cylindrical mould - has three sections hinging together, and locking mechanism for securing sections
Inventor: GEBHARD ERICH
IPC: B28B21/82
Filed: 1976-02-23
Abstract: The longitudinally-split cylindrical mould is for the manufacture of concrete pipes, hinging apart for knockout purposes. It comprises three sections of equal size, the central one of which (14) is coupled to the outer two (15, 16) by external hinges. The outer two are coupled to each other by a locking mechanism (19). An eye (20, 21) included for handling the mould by forklift truck. One or more supports allow the mould to rest on the truck. Where there is a socket ring at the lower end, and the inner surface of the central mould section is clad with aluminium sheet, the ring can be internally clad with this also.
Patent DE-2612470-A1 (DE)
Title: Tool correction circuit in numerical control system - has interpolator with circuit for modifying path resolution power
Inventor: FICKEL WOLFGANG DIPL PHYS
IPC: G05D3/20
Filed: 1976-03-24
Abstract: The switching circuit is used for tool correction in numerical path control systems in machine tools. The tools have equipment for incremental feed using a digital path interpolator which employs a conventional step by step search method. The path data are corrected by linear interpolation along the path normal up to the identification of the end of interpolation on reaching the specified cutter radius. A forward and backwards interpolator is provided and the interpolation direction can be changed over on identification of the interpolation end together with simultaneous increase of the resolving power which can be controlled in relation to the size of the specified cutter radius.
Patent DE-2623299-A1 (DE)
Title: Slewing telescopic tower crane - has rope between derricking gantry and superstructure of length to match telescopic tower height
Inventor: RUECKER KURT
IPC: B66C23/34
Filed: 1976-05-25
Abstract: The slewing tower crane has a telescopic tower, tilting on the crane superstructure between the vertical working and horizontal transport positions. The superstructure is mounted by means of a slewing ring on the chassis, and the jib is in two sections hinging together, with a crab travelling along it. The derricking gantry (12) forms part of a crank linkage (13, 14) supporting the jib (8), and pivots freely on the top of the tower (9). It has a derricking rope (15) reeved between its free end and the superstructure (3), and whose length matches that of the extended tower. The jib can be of the telescoping or folding type.
Patent DE-2624192-A1 (DE)
Title: Cutting foam blocks into strips or bars - by pushing the blocks forward at a lower rate than the operating rate of the cutters
Inventor: MORA ALCIDE
IPC: B26D3/28
Filed: 1976-05-29
Abstract: Cutting foam blocks or slabs into strips or bars, using mobile cutting tools, comprises subjecting the foam to a controlled pressure; and imparting to it, near the cutting zone, a controlled forward movement which takes effect predominantly downstream of the cutting zone. The resulting rate of advance is less than the operating speed of the cutting tools. Pref. pressure is exerted by means of a pair of rollers between which the foam is passed. The advance rate of the foam is equal to, or slightly higher than, the circumferential speed of the rollers. Esp. for polyurethane foams. Accurate cuts are achieved whilst the risk of damage to the foam and resulting waste is minimised.
Patent DE-2628160-A1 (DE)
Title: Air cooled heat exchanger for atomic reactor condenser - comprises adjacent elements with attached pipe coils
Inventor: HEUBES JEAN-JACQUES
IPC: F28F1/12
Filed: 1976-06-23
Abstract: The pipes and corrugated panels are both of rectangular cross-section so as to allow the flat surfaces of the troughs and crests of the corrugated panels by clamping and/or by adhesion or welding. The corrugations of the panels may be opposite or offset from each other. Clamps may be formed by cutting out strips which extend over several pipe coils and which are bent around over the side surfaces of the pipes, or they may be formed independently of the pipes and panels, encompassing the pipes with their ends engaging in holes in the crests and troughs of the corrugations. High efficiency without leakage is obtd.
Patent DE-2632602-A1 (DE)
Title: Halogenated triazolyl and imidazolyl-(2)-butanone and butanol cpds. - for use as fungicides and bactericides
Inventor: KRAEMER WOLFGANG DR
IPC: C07C45/68
Filed: 1976-07-20
Abstract: New triazole and imidazole derivs. of formula (I) and their salts (where R is opt. substd. phenyl or alkyl; X is H, alkyl or halogen; Y is halogen, Z is halogen, alkyl, cycloalkyl, alkoxy, haloalkyl, alkylthio, alkoxycarbonyl, opt. substd. phenyl, phenoxy or phenylalky, NH2, CN or NO2; n is 0-5; A is CO or CHOH; B is N or CH). Cpds. (I) are useful as agricultural fungicides and bactericides, e.g. for control of Podosphaera, Erysiphe, Fusicladium and Uromyces. A typical cpd. is 4-chloro-1-(4-chlorophenoxy)-3,3-dimethyl-1(1,2,4-triazol-1-yl)-2- -butanone. In an example, this is prepd. from 1-bromo-4-chloro-1-(4-chlorophenoxy)-3,3-dimethyl-2-butanone and 1,2,4-triazole.
Patent DE-2634405-A1 (DE)
Title: Machinery for welding the edges of fabrics together - comprises travelling carriage which moves along the selvedge
Inventor: LANDIS MERRILL YOUNG
IPC: A41D27/24
Filed: 1976-07-30
Abstract: The machinery for welding a crinoline strip onto the edge of a fabric consists of a long flat table with a heating strip along one edge on which the edge of the fabric is placed. A carriage moving on overhead rails, lays firstly a film of adhesive material along the edge of the fabric and then places the crinoline strip on top. This is followed by a jet of hot air to preheat the crinoline strip and then by a heated wheel, which applies sufficient heat and press. to weld the crinoline strip onto the edge of the fabric. Finally a cutter and cutter guide working in a slot along the edge of the table cuts off the excess material. The machinery enables very wide fabrics to be welded and is suitable for fabrics which cannot be conveyed by a moving belt.
Patent DE-2642778-A1 (DE)
Title: Carbon, carbide, nitride and carbonitride coating prodn. - by applying acrylamide! or methacrylamide (co)polymer, opt. hardening and pyrolysis
Inventor: BITZER DIETHELM DIPL CHEM DR R
IPC: C04B41/87
Filed: 1976-09-23
Abstract: Prodn. of coatings of C and/or carbides, nitrides and/or carbonitrides of Fe, B, Si or sub-gp. 4-6 transition metals involves coating C or the metal concerned with an aq. soln. contg. >10 wt. % of a water-soluble, nonionic, cationic or anionic (meth)acrylamide (co)polymer (I), followed by opt. hardening and pyrolysis. For carbide, nitride and/or carbonitride coatings, the (I) soln. is mixed with water-soluble salts and/or carbides, nitrides and/or carbonitrides of Fe, B, Si or the transition metal and/or vitreous C. Process is suitable e.g., for coating carbon and graphite fibres, including chopped fibres, to improve their adhesion to and wetting by metal matrixes and prevent reaction between the fibres and matrix; for protecting carbon-carbon composites; and for coating carbon and graphite electrodes. Process avoids expensive deposition from the gas phase and is relatively simple. The addn. of vitreous C powder keeps the wt. of the coated material as low as possible and provides effective wear resistance.
Patent DE-2650828-A1 (DE)
Title: Pyrocatechol carbamate derivs. prepn. - by reacting a pyrocatechol with phosgene then with an amine and reacting resulting carbamate with an alpha-halo ether
Inventor: LOEFFLER HANS-PETER DIPL CHEM
IPC: C07C271/06
Filed: 1976-11-06
Abstract: Prepn. of pyrocatechol derivs. of formula (I) (where R' and R2 are each H or 1-4C alkyl; R3 and R4 are each H, halogen or 1-4C alkyl; R5 is 1-4C alkyl; X is halogen, 1-4C alkyl or 1-4C alkoxy; and n is 0, 1 or 2) by (a) reacting an opt. substd. pyrocatechol of formula (II) with phosgene in the presence of 0.1-10 mol % of a catalyst to give a pyrocatechol carbonate of formula (III); (b) reacting (III) with an amine HNR1R2 (IV) to give a carbamate of formula (V); (c) (V) with an alpha-halogether of formula (VI) in the presence of a tert. amine to give (I). Steps (a), (b), and (c) are all in the presence of a dipolar aprotic solvent and the steps follow one after the other without isolating the intermediate prods. formed. (I) is used as an insecticide and as a plant protecting agent.
Patent DE-2652612-A1 (DE)
Title: Universal set square for use on inclined drawing board - has built in spirit level to ensure accuracy of positioning on board
Inventor: BAUER ERICH
IPC: B43L7/00
Filed: 1976-11-19
Abstract: A universal set square for use with inclined drawing boards utilises a spirit level to ensure accuracy of the set angle. The set square has a straight edge for drawing lines and a semi-circular scale calibrated in degrees. A pivotted holder may be set to any angular position, with a vernier scale used for accurate setting. The set square is placed on the inclined board and a spirit level built into the holder used to guarantee accuracy of positioning.
Patent DE-2654062-A1 (DE)
Title: Vinyl-cyclopropane carboxylate(s) prodn. - by treating halo-cyclo:butanone(s) with alkoxide, useful as insecticides and acaricides
Inventor: HEINE HANS-GEORG DR
IPC: C07C45/63
Filed: 1976-08-26
Abstract: Process for preparing cyclopropane carboxylates of formula (I) comprises reacting alpha-halocyclobutanones of formulae (II) or (V) with an alkoxide MOR8, opt. in a diluent. R1-3 are H, halo, CN, opt. substd. alkyl or alkenyl, aralkyl, aryl, alkoxycarbonyl, alkylsulphonyl, arylsulphonyl, acyloxy or dialkylaminocarbonyl. R4-7 are H opt. substd. alkyl or alkenyl, halo, CN, aralkyl or aryl; or R1+R2; R2+R3; R1+R4;R4+R5;R4+7 or R5+R6 can together complete a carbocyclic ring of up to 8 ring members; R8 is the residue of an alcohol; M is equiv. of an alkali or alkaline earth metal; R12 is -CR3Hal.CHR1R2; -CHR3.C(Hal)R1R2 or -C(Hal)R3.C(Hal)R1R2).; (II) and (V) can be prepared in situ by halogenated the corresp. unhalogenated cpd. (I) are insecticides and acaricides for use in agriculture, protection of stored good and hygienic applications; or intermediates for other insecticides. Process uses readily available starting materials, is generally applicable and can provide (I) directly without isolation of intermediates. A typical cpd. is the m-phenoxybenzyl ester of 2,2-dimethyl-3-(alpha,beta,beta-trichlorovinyl)cyclopropanecarbox- ylic acid.
Patent DE-2705116-A1 (DE)
Title: Domestic laundry drying cabinet with heat exchanger - has automatic controls and air circulating system ensuring uniform drying
Inventor: BALTES HANS
IPC: D06F57/12
Filed: 1977-02-08
Abstract: Flat goods, esp. items of domestic laundry are dried in a cupboard; air being drawn in from outside, compressed and heated. The air blown through from one side of the interior of the cupboard is directed against the edges of the goods, and is drawn away from the other side with part of its heat energy exchanged with the cold air coming in, or with an auxiliary stream of cold air or water. The drying air from the laundry items is blown into a condenser for the removal of part of the water carried over, and simultaneous cooling before being vented into the atmos. The fresh air is drawn in by a fan and fed through the condenser for preheating. It goes then through a heater to the goods to be dried. When the drying air is moved in a closed circuit, the condenser is cooled by a stream of air returned to the outside, or by a stream of water. Overcomes the problem that in conventional dryers the items near to the air outlet require a longer drying time. This extends the drying period of the whole charge and puts out very hot air.
Patent DE-2706590-A1 (DE)
Title: Beer barrel intensive cleaning system - has redirection member diverting flow of fluid to clean outside of fittings
Inventor: BARTS HELMUTH
IPC: B08B9/08
Filed: 1977-02-16
Abstract: The beer barrel cleaning system has a cleaning head (2) which can be connected up to the tap fitting (3) of the barrel (1) and has a supply pipe (4) associated with the beer valve (6) and a waste pipe (5) associated with the carbon dioxide valve (7). A cleaning fluid pump (8) is connected to the supply pipe (4) and waste pipe (5) through reversing valves (4). The cleaning fluid can flow through the carbon dioxide valve (7) into the barrel, through the head to completely wet the outside of the riser pipe (13) inside the barrel. On first injecting the cleaning fluid through the valve (6) and riser the inside of the barrel is completely wetted since the fluid is directed all round the inside by a cup (14) in the base of the barrel. This cleaning fluid is then redirected to clean the remaining parts.
Patent DE-2711403-A1 (DE)
Title: Load-bearing support structure girder - has open profile chords with screw extending through hole in end closing piece
Inventor: HUEBNER PETER DIPL ING
IPC: E04B5/14
Filed: 1977-03-16
Abstract: The support structure comprises lattice girders screwed to connecting pieces at the nodal points. The upper or lower chord is in the form of an upward or downward open profile unit, with an apertured closing piece welded into the end facing the nodal point, across its length. Separated connecting components are allotted to the upper and lower chords, which may also have flangers on their open sides. The upper or lower chords may be U-shaped or V-shaped in cross-section, while the closing piece may be a deep-drawn cap.
Patent DE-2713188-A1 (DE)
Title: Separation of kerogen from oil and alum shales - by comminution assisted by acid or alkali leaching
Inventor: FAHLSTROEM PER ANDERS HERMAN H
IPC: C10C3/00
Filed: 1977-03-25
Abstract: Extn. of kerogen from bituminous sedimentary rock, esp. oil and alum shales, comprises breaking up and comminuting in >=1 stage, assisted by a leaching treatment before final milling. The kerogen is then sepd. by an emulsification flotation or gravity process, using in the gravity process a nonpolar fluid of density higher than that of kerogen. Energy required for milling from under 3mm to below 15 mu particle size (around 100-120 kWh/t) is reduced by at least half. Other materials present, e.g. U, V, Al and phosphates can be recovered from the leaching fluid.
Patent DE-2714590-A1 (DE)
Title: Acetal prepn. from aldehydes and alcohols - by reaction in a rectification column with distillable acid
Inventor: KAIBEL GERD DIPL ING
IPC: C07C43/30
Filed: 1977-04-01
Abstract: Prepn. of acetals by reaction of aldehydes with alcohols is carried out in the presence of a distillable acid in a reactor comprising a rectification column, the top of which is equipped with a water trap (e.g. a phase separator or reflux separator). The prods. are useful as intermediates for the prodn. of plastics, additives, perfumes and vitamins, 1,1-bis(3-methyl-2-buten-1-yloxy)-3-methyl-2-butene (I) is an intermediate for vitamins A and E. The process gives practically quantitative aldehyde conversions with high selectivity (generally >97%) for the acetal. The use of chemical additives (e.g. dehydrating agents or azeotroping solvents) is avoided. In an example, (I) is prepd. from 3-methyl-2-buten-1-al and 3-methyl-2-buten-1-ol.
Patent DE-2719015-A1 (DE)
Title: Chlorine content measuring transducer - has pair of immersed electrodes having current flow monitored by differential amplifier supplying signal to comparator
Inventor: HERTNECK KARL HEINZ
IPC: G01N27/06
Filed: 1977-04-28
Abstract: A transducer and its associated circuitry for the measurement of the free chlorine content of chlorinated water, partic. for swimming pools and the like, using the current passing through an immersed electrode pair as the controlled variable, is presented. A pair of electrodes(1, 2) mounted in a cylindrical shield and chassis block(3) is immersed in the water and constant voltages(U1, -U1) are applied via resistances(R1, r2) to them. Current between the electrodes is monitored by a differential amplifier(4), which feeds a signal to a comparator(6) and thence to a supply pump(7) which adds an acid or chlorite solution to the water until the undissolved chlorine content reaches the required threshold represented by the second comparator input(U0).
Patent DE-2719194-A1 (DE)
Title: Switch fastener with sprung housing holder - has second sprung element between switch and receptacle with specified force vector
Inventor: MUTSCHLER ERICH
IPC: B60R16/00
Filed: 1977-04-29
Abstract: The fastener is intended for a retaining part and has a sprung holder on the switch housing, reaching behind a shoulder on a boundary wall. A further sprung element (6) is provided between the retaining part (2) and the switch (1). Its force vector is directed at right angles to the force vector of the holder (5) which is under external influence. The sprung element is preferably formed in one piece with the holder and coupled over a mobile strip with the switch housing. Alternately the sprung element may be provided on the retaining part. This element may be formed by a loose spring between the switch housing and the retaining part. It may be also in the form of a pressure member, moving in a guideway, and displaced by a compression spring.
Patent DE-2724966-A1 (DE)
Title: Textile web distortion sensing device - has number of sensing heads spaced transversely of web and two aligned with selvedges
Inventor: BECKSTEIN HELLMUT DIPL ING DR
IPC: D06H3/12
Filed: 1977-06-02
Abstract: Device for sensing local weft distortions in a textile web has a number of sensing heads arranged transversely of the web. The heads are associated with the selvedges and the heads arranged for scanning transversely spaced register marks or a weft line extending along the whole width of the web. Provision of a number of strategically disposed sensing heads permits of identification of all kinds of distortions, e.g. curvilinear, sinusoidal or oblique.
Patent DE-2725342-A1 (DE)
Title: Protection of appliance plug against unauthorised use - involves case with holes for pins, and arms which, when locked, grip at back portion of plug
Inventor: UHLE HORST-GUENTER DR
IPC: H01R13/639
Filed: 1977-06-04
Abstract: The protection device has a case (1) with holes (12) for the plug pins. There is a locking device (9) and one or several swingable arms (4) which are spread outwards when the locking device (9) is open, and when it is locked they grip at the back of the plug so as to hold it in position. A key (10) fits into the rear side of the case (1) on the side away from the holes (12) receiving the plug pins. There are ribs (2, 3) along the sides of the case holding the pins on which the arms pivot. There are springs (7) which force the arms apart. The arms have thickened portions (6) between the ribs and they have curved or hooked ends (8) to assist in gripping the back of the plug.