baber/WOPTO huggingface dataset:
Patent DE-2641963-A1 (DE)
Title: Control circuit for power supply rectifier - uses phase correction system to prevent instability through short circuits or earthing
Inventor: WATANABE ATSUMI
IPC: H02M7/515
Filed: 1976-09-17
Abstract: The transformer (T) connects a DC network via the rectifier to an AC supply system. The first part of the circuit delivers a signal in accordance with a control leading phase of the rectifier, depending on voltages (Va, Vb, Vc) applied to it by the A.C. supply system. It delivers D.C. current to the D.C. network. The second part of the circuit delivers a phase correction signal which depends on the asymmetry of the voltages (Va, Vb, Vc) applied to the rectifier. The third part of the circuit processes signals from the first and second parts and delivers an output signal which controls a circuit delivering gating pulses to the rectifier.
Patent DE-2641981-A1 (DE)
Title: Large particle size, low viscosity latexes mfr. - using primary emulsifier system consisting of blend of monosulphonated alkyl benzene and non-sulphonated alkyl benzene
Inventor: PAPALOS JOHN GEORGE
IPC: C08F2/24
Filed: 1976-09-17
Abstract: In the mfr. of synthetic latexes using a recipe contg. a diluent, a primary emulsifier, an initiator, one or more relatively water-insoluble latex monomers and opt. a chelating agent, an electrolyte, a chain transfer agent and a secondary emulsifier, the improvement comprises using as the primary emulsifier 0.5-4.0 pbw, per 100 pbw latex monomer, of a system consisting of (a) 35-87 wt. % of a monoalkylbenzene monosulphonate salt and (b) the balance being a monoalkylbenzene in which the alkyl moiety is linear, satd. of unsatd. and contains 6-20C. By reducing the degree of sulphonation of the overall primary emulsifier system, compared with prior art systems which totally comprises sulphonated alkyl-aromatic cpds., the particle size and the viscosity of the latex are reduced. Also the emulsifier system is biodegradable.
Patent DE-2642218-A1 (DE)
Title: IC vehicle engine depression evaluation system - has depression dependent diaphragm with one-way valve for each cylinder
IPC: F02D11/08
Filed: 1976-09-20
Abstract: A small branch pipe (13) containing a one way valve (14) is fitted up stream from the edge of the throttle valve (11) in the air intake to each cylinder. The branch pipe is connected to a diaphragm housing (17) whose chamber (18) has a calibrated opening (19) to atmosphere. The housing wall consists of a flexible diaphragm (20) whose balance is maintained by a spring (22) and provided with a pull rod (21). The pressure prevailing outside of the diaphragm is atmospheric and the pressure on the inside is determined by the engine working conditions. The one way valve opens each intake stroke of the piston and closes for the remaining three. The ratio between the one way valve cross section and the free opening is atmosphere (19) in the diaphragm housing is between 2 and 4.
Patent DE-2643336-A1 (DE)
Title: Solid glycidyl ethers of polyhydric phenols - prepd. in two steps, by adding alkali hydroxide after chlorohydrin ether formation
Inventor: BECKER WILHELM DIPL CHEM DR
IPC: C08G59/06
Filed: 1976-09-25
Abstract: Prods. having Durrans m.pt. >=50 degrees C, are prepd. by reacting polyhydric phenols (I) with 1.75 mol. epihalohydrin/mol. (I), in the presence of water and alkali hydroxide and opt. in the presence of Sn(II)-salts or in absence of O2. Two steps are used. In 1st step, (I) dissolved in =1.75 mol. epichlorohydrin, (II), for each mol. of (I), is converted to 10-95(50-80)wt.%, w.r.t. (II), chlorohydrin ether. Conversion takes place in the presence of 0.1-50(1-10)mmol. catalyst (per mol.(I)), specific for chlorohydrin ether formation, at 50-150(90-120) degrees C under >=1 atmos. press., in 30-300 (60-120) mins. In 2nd step, the reaction mixt. is dispersed in water and the aq. alkali hydroxide soln. is gradually added to the mixt. at 25-80 degrees C. The solid glycidyl ethers can be used as lacquer- and coating binders for mfr. of elastic coatings which resist embrittlement. Prods. have good solubility in organic solvents and partic. narrow mol. wt. distribution.
Patent DE-2648028-A1 (DE)
Title: Operational control circuit for printing electrodes - has blocks of electrodes, each being couplable via controllable group switch to power source
Inventor: ERB HANS JOACHIM DIPL ING DR
IPC: B41J2/425
Filed: 1976-10-23
Abstract: The control circuit has selectably operable switches for controlling several comb-like fixed printing electrodes. A number (n) of neighbouring electrodes (1 to m.n) are combined in a block. Each block is couplable via a controllable group switch (B1, B2, Bm) with the other pole of the printing voltage (11). The electrodes are connected by controllable switches (S1 to Sn) with the block switch of their respective blocks. n control lines (St1 to Stn) are provided for the selection of the printing electrodes. The switches of the relevant electrodes are energised via these lines. The unit is designed to be inexpensive to construct and to require limited power.
Patent DE-2701339-A1 (DE)
Title: Reserve level indicator for heating oil tank - uses supply pipe float and locking mechanism for positive indication
Inventor: ROSE CHRISTEL
IPC: B65D90/48
Filed: 1977-01-14
Abstract: A device indicating when a reserve level is reached in a container emptying via a supply pipe, e.g. in a heating oil tank, is designed to ensure absolutely reliable indication so as to allow sufficient time to obtain a refill without requiring continuous supervision. When the container is filled the inlet opening of the supply pipe is carried on a float up to the min. reserve level where a locking device holds it. When the oil level falls below the min. reserve level oil ceases to flow and the system operation is interrupted, thus giving positive indication of the need to refill. The locking mechanism is released and the reserve oil used.
Patent DE-2702032-A1 (DE)
Title: Up-and-over garage door - has electric motor driven winch system with door guided by vertical and horizontal rails
Inventor: PETERS KLAUS
IPC: E05F15/684
Filed: 1977-01-19
Abstract: The up and over door is guided at its lower end by vertical rails on both sides. The upper end of the door is guided on both sides by horizontal rails. The lower edge of the door panel (1) is connected to a hoisting arrangement (13). The door is pulled upwards along the vertical side guides (5). The upper edge of the door is connected to the electric motor (17) drive (11) which pulls the door along the horizontal side guides (9). The motor is also used for pushing the door outwards along horizontal guides for closing.
Patent DE-2704259-A1 (DE)
Title: Powdered coconut shell tobacco additive - reduces the carcinogens content on the smoke and makes it milder
Inventor: BANERJEE ARUN DR
IPC: A24B15/30
Filed: 1977-02-02
Abstract: Tobacco, to be used in cigarettes, cigars, cigarillos, pipe tobacco etc. contains powdered coconut shell (I) as an additive. The burning temp. of (I) lies below that of tobacco and it serves to convert 3,4-benzpyrene adn other similar carcinogens in burning tobacco to an innocuous form. (I) also serves to make the tobacco smoke taste milder. (I) is ground to a pref. particle size of 50-100 mu (when it adheres, on mixing with the tobacco, to the latter due the tobacco's moisture content). The pref. tobacco (I) wt. ratio is 9:1.
Patent DE-2705182-A1 (DE)
Title: Magnetic sound carrier recording and read-out system - has information in clear and control code recorded on same sound carrier track
Inventor: MARTI RAYMOND
IPC: G11B27/30
Filed: 1977-02-08
Abstract: The information is recorded on the same track of the carrier in clear text as a control code. This is done by interrupting recording of the information in clear for a period of 10 to 50 milliseconds and by recording coded control information during this period. During playback or read-out the coded control data is separated out, decoded, stored and displayed. Recording of the information in clear can also be interrupted for the control data at regular intervals of 1 to 5 seconds.
Patent DE-2707483-A1 (DE)
Title: Belt casting machine - where belts run on rolls with sheath expanded hydraulically to keep belts on centreline of machine
Inventor: SIVILOTTI OLIVO GIUSEPPE DIPL
IPC: B22D11/06
Filed: 1977-02-21
Abstract: Belt casting machine is for the continuous casting of metal in a mould formed by a pair of moving surfaces, one or both of which is a metal belt. The belt is supported by a control roll, consisting of a shaft with a radial structure terminating in two peripheral channels (a, b) one on each side of the middle line (P) of the roll. Each channel extends to one end of the roll, the outer ends of the channels being closed by end caps on the roll. An expandable sheath is located on channels (a, b); and the roll shaft and its radial structure have two sets of channels via which a hydraulic fluid can be fed independently to both channels (a, b) to expand the sheath. Channels (a, b) are pref. formed in the periphery of a roll which has a middle web including line (P) and sepg. the two channels. The casting belts are subject to temp. change and stresses which can cause the belts to wander away from their correct position. Hydraulic fluid can be fed into channels (a, b) to return and/or keep the belts on their correct path.
Patent DE-2709258-A1 (DE)
Title: Anticorrosive coating for bore of drinking water pipes - using cement-sand mortar contg. dispersion of acrylic! resin
Inventor: ECKERT DIETER
IPC: B28B21/94
Filed: 1977-03-03
Abstract: Anticorrosive coatings are applied tot he bores of pipes, moulded tubes, or fittings of steel, iron, concrete or asbestos-cement, using a mixt. of cement mortar with wt. ratio cement:additive of 1:1.5-1:3.5, esp. 1:1.5-2. The mixt. contains (by wt.) 3-25%, esp. 5-10% (w.r.t. the wt. of cement) of resin dispersions which are difficult or impossible to saponify, esp. acrylic resins; together with the usual antifoamants and/or thinners. The mixt. may also contain pozzolana and/or mineral- and/or organic fibres, esp. asbestos, glass, or plastic fibres as reinforcement; and the water/cement ratio is 0.25-0.45, esp. below 0.4. The mixt. is fed by compressed air through a nozzle onto a spinning dish so it is thrown radially by centrifugal force against the bore of a pipe to obtain a coating of 1-5, esp. 2-3mm. The pref. spraying plants use either one or four spraying nozzles specially designed for spraying.
Patent DE-2711633-A1 (DE)
Title: Rig for surfboard with sail - has curved handgrips for access under sail when tacking
Inventor: MOEBIUS RICHARD
IPC: B63B35/79
Filed: 1977-03-17
Abstract: The improved windsurfer has a profiled bows section (14) with a deeper thickness at the bows and a wider rear section. The centreboard (19) is held in an elastic sleeve, from the top of the board and is adjusted by the foot of the operator while the sail is gripped by two curved grip bars (17), one each side of the sail, and curved upwards to allow the user to duck under the sail when tacking. The curved handgrips prevent foot damage when the mast is dropped for travelling under bridges. Additional stability is provided by an adjustable fin (13) under the stern.
Patent DE-2717044-A1 (DE)
Title: Puncturing needle - with the smooth part thicker than the notched part, increases working life of needle
Inventor: SUPITAR PETR
IPC: D04H18/02
Filed: 1977-04-18
Abstract: Puncturing needle having one or several notches in the working part is claimed where the smooth working part is 10-20 (16)% thicker than the notched working part. The notches pref. have a radius like rounded off base surface, and heel (or flank. The breakage rate of needles is reduced without affecting their ability to draw along fibres by the notches. The fibres are treated more gently.
Patent DE-2737015-A1 (DE)
Title: Piercing press making axial hole in hot steel ingots - where hydraulic limit-stops restrict downward stroke of piercing mandrel
Inventor: BICK KLAUS
IPC: B21J9/20
Filed: 1977-08-17
Abstract: The press has a crosshead driven vertically and carrying the piercing mandrel. The downward stroke of the crosshead is limited by hydraulically adjusted thrust pads. Pref. the thrust pads consist of four hydraulic cylinders located at the corners of a rectangle, each hydraulic cylinder contg. a piston with a piston rod pushed downwards via a coil spring located round each rod. The rods form the thrust pads or stops. Hydraulic cylinders are pref. fed with hydraulic fluid via four pipes connected together so the pressure in all four hydraulic cylinders is the same, and the height of the rods is the same. The hydraulic circuit pref. includes a pump feeding a constant vol. into the pipes, and also solenoid valves controlling and reversing the flow of hydraulic fluid. Used to obtain a pierced hole with very accurate length in the ingot so the desired thickness is left between the base of the hole and bottom end of the ingot.
Patent DE-2739226-A1 (DE)
Title: Alkene di:halide, prepd. from corresp. satd. hydrocarbon - by oxyhalogenation, used in prepn. of nitrile(s) partic. adiponitrile
Inventor: KNOX WALTER ROBERT
IPC: C07C45/33
Filed: 1977-08-31
Abstract: A 4-5C alkene dihalide is prepd. by continuous oxyhalogenation of the corresp. satd. aliphatic hydrocarbon in the presence of a stabilised cupric halide catalyst. P2, a halogen pref. Br2, and the hydrogen, in the gaseous phase are fed at a regulated temp., into a reactor. The gas flow rate and the reactor conditions of temp. and press. are predetermined according to the hydrocarbon structure, the halogen, the appts. and the catalyst concn. used, so as to favour the formation of the required alkene dihalide. The effluent from the reaction mixt. is selectively condensed to recover the alkene dihalide. Alkene partic. butene dihalides are partic. useful in the prepn. of nitriles such as adiponitrile via dicyanoalkenes which are readily prepd. from the dihaloalkenes.
Patent DE-2741014-A1 (DE)
Title: Patience and composition game with bricks - made into three dimensional figures of different shapes from five dice
Inventor: ROEHLER HEINZ
IPC: A63F9/12
Filed: 1977-09-12
Abstract: Game of composition and patience consisting of 28 different three dimensional figures which are combined from 5 dice into symmetrical units. This combination permits the combination fo the figures into about 100 different figures and bodies made in the instructions. figures illustrated in the instructions. The figures have indicator marking for top and bottom to facilitate the composing process. The figures produced from three dimensional assemblies with flat surfaces with right angles planes meeting each other.
Patent DE-2755134-A1 (DE)
Title: Cementation of metals from leaching solns. - esp. to remove unwanted metals from neutral zinc soln.
Inventor: NISSEN REINHARD DIPL ING DR
IPC: C22B3/46
Filed: 1977-12-10
Abstract: The soln. is treated with granules and/or lumps of cementation material(a) in a vibrating reactor. Cementation occurs at a pH forming a passivating layer(a1) on material(a); and the undesirable layer(a1) is suppressed by the vibration. The resulting suspension, contg. the residual leach, cemented materials, and abraded particles of layer(a1) is then adjusted to a pH which assists settling and/or filtration of the solid matter. The suspension is pref. treated with acid or alkali to adjust the pH, and a sedimentation agent, esp. a polyacrylamide, is pref. also added. The leach is pref. a neutral soln. contg. Zn, to which Zn granules(a) are added to remove other metals, esp. Cu, Cd, Co and Ni at pH 5.2-5.4, then adjusting the pH of the suspension to 4.5-5. Used to remove metals forming impurities, esp. from Zn solns., by cementation or fractional cementation.
Patent DE-2808279-A1 (DE)
Title: Strain-gauge circuit supplying pulse without overshoot - changes resistance rapidly by buckling effect resulting in sharp rise time
Inventor: ROTH MICHAEL
IPC: G01L1/22
Filed: 1978-02-27
Abstract: The strain gauge circuit will produce a switching pulse free of any overshoot. The voltage signal will be dependent on the resistance and will be used to supply electronic units. The strain gauges are used instead of contacts. A sharp buckling effect changes the resistance rapidly. This produces the voltage signal free of any overshoot and with a sharp rise time.
Patent DE-2809100-A1 (DE)
Title: Reflector for bicycle wheel - has segment shape to grip between spokes using moulded tongues
Inventor: OTTO HANS-JOACHIM
IPC: B62J6/20
Filed: 1978-03-03
Abstract: The reflector for a bicycle wheel has a segmented profile with the sides parallel to the radial spokes and with a contoured shape to clip over three adjoining spokes. The middle spoke locates in a central groove (III) while the edges clip over and under the two adjoining spokes. The reflector is clipped into the spokes without any special tools. It provides improved identification of the machine in the dark and can be fitted to any spoked wheel. The reflector is made from plastics mouldings covered with a reflecting layer.
Patent DE-2812552-A1 (DE)
Title: Cooled burner throat for pulverised fuel burner - consists of rings of square section tube welded together and machined
Inventor: MARTIN HEINO DIPL ING
IPC: F23M5/02
Filed: 1978-03-22
Abstract: The cooled burner throat is based on the use of square section tubes. It is suitable for pulverised fuel or PF plus oil/gas burners. The tubes (13) are rolled into rings whose end faces are laid against each other, overlapping partially or wholly, to produce the burner throat basic shape. Inside and outside fillet welds (14) fix the shape. Where the tube material projects beyond the inside weld (15) it is machined away to produce a smooth surface, which may be coated protectively. The tubes are connected into the adjacent furnace waterwall flow circuit.
Patent DE-2813967-A1 (DE)
Title: Photoelectric pyrometer for oscillating hot wire - using one direct light pulse train and one from optical feedback
Inventor: BESVULJAK ANATOLIJ S
IPC: G01J5/00
Filed: 1978-03-31
Abstract: A photoelectric pyrometer for the temp. measurement of workpieces of small transverse dimensions which can oscillate relative to the optical axis, e.g. rolled, drawn or annealed wires, is fitted with a photoelectric converter in the focusing plane for a condenser which is focused to the opening of the fixed diaphragm of the objective and produces two sequences of trapezoidal output pulses of variable duration and mark space ratio. After conversion to rectangular pulses, these are passed to a store and comparator. This produces readings of better accuracy and is independent of alterations in the transverse dimensions of the wire and in the distance from it.
Patent DE-2816250-A1 (DE)
Title: Uniformly drying marginal edge portions of paper webs - using HF electrodes disposed on opposite sides of web and displaceable in planes normal to web plane
Inventor: GRASSMANN HANS-CHRISTIAN DIPL
IPC: F26B13/10
Filed: 1978-04-14
Abstract: Parent patent describes appts. for drying marginal edge portions of paper webs which has two sets of electrodes disposed equidistantly along the marginal portions. Electrodes are connected alternately to opposite poles of a high frequency electrical supply source to produced stray fields along the marginal portions. Electrodes, which extend transversely of the web path have a length corresp. to the width of the portions to be dried. In this addn. electrodes are mounted for relative movement in planes normal to the plane of the web. Drying gradient across the marginal portions is uniform.
Patent DE-2817837-A1 (DE)
Title: Lubricating oils contg. solid lubricant - and copolymer of n-vinyl!-pyrrolidone and acrylate! ester!
Inventor: DEVRIES DONALD L
IPC: C10M161/00
Filed: 1978-04-24
Abstract: Lubricating oils with improved lubricating properties contain (a) a minor amt. of solid particles of graphite, MoS2 and/or ZnO, and (b) a minor amt. of a copolymer of (i) an N-vinylpyrrolidone and (ii) an oil-soluble acrylate ester. The (a):(b) wt. ratio if =1:1 (esp. =1:3). Component (b) inhibits deposit (sludge, varnish, etc.) formation. Component (a) pref. comprises graphite particles with a max. transverse dimension of 1-2000 m mu, and is present in an amt. of 0.05-5 (esp. 0.1-2) wt. %. Component (b) is pref. a copolymer with a (i):(ii) molar ratio of 1:4-20 (esp. 1:5-15) and a mol. wt. of 75,000-1,500,000 (esp. 200,000-1,000,000). It is pref. present in an amt. of 2-12 (esp. 3-10)wt. %.
Patent DE-2820792-A1 (DE)
Title: Cable connection clamp applied to circuit board - provides tension relief and cover for connection points using plastics moulding with opening
Inventor: WEIDNER HANS-JUERGEN
IPC: H02G3/18
Filed: 1978-05-12
Abstract: The clamp comprises a plastics moulding (7) with an opening for the cable (13). The clamp is fastened to the circuit card (3) with a screw, and tightening this screw also traps the cable between lateral ribs in the cable opening. A hook shaped extension (1) locates the clamp on the circuit card (3). The clamp is extended to also cover the cable to card connections thereby preventing accidental contact. The clamp may be moulded in transparent material. A typical application is in telecommunications equipment.
Patent DE-2821460-A1 (DE)
Title: Dovetail guide for machine tool slide - has hexagonal profile nut for trapping matching flat profiles on slide
Inventor: LANDSBERG GERHARD FRANZ ULRICH
IPC: F16C29/02
Filed: 1978-05-17
Abstract: The dovetail guide is used for the slides of machine tools. The bed and saddle are conventional commercial profiles. The slide consists basically of a channel profile with stepped flanges and two flat profiles with an angle of 60 deg. The bed consists of an arbitrary support profile with flat surface and a mounted hexagon profile. The channel profile is replaced by flat profile or a plate and by two rectangular profiles. The flat profiles with inclined faces are trapped by the hexagonal component, ensuring a guiding action.
Patent DE-2832433-A1 (DE)
Title: Resistivity and dielectric constant determination of earth formations - uses electromagnetic wave logging system to transmit, and receive at different spacings at 30 megahertz
Inventor: MEADOR RICHARD A
IPC: G01V3/30
Filed: 1978-07-24
Abstract: The system operating at radio frequencies in the range of 10 MHZ to 60 MHZ is provided for simultaneously determining the resistivity and dielectric constant of earth formations in the vicinity of a well bore. A transmitter coil and two longitudinally spaced receiver coils are provided in the system. Circuit for measuring the unnormalized amplitude ratio and the relative phase shift of electromagnetic waves at the spaced receiver coils are provided. A relationship is given whereby the formation dielectric constant and resistivity may be obtained from the amplitude ratio and relative phase shift measurements.
Patent DE-2834789-A1 (DE)
Title: Double fluid reservoir for car - has min. level duct and vent hole via filler
Inventor: REINARTZ HANS-DIETER
IPC: B60T11/26
Filed: 1978-08-09
Abstract: The double fluid reservoir for the vehicle has a main chamber (5) linked to the atmosphere and a secondary chamber (4) which is linked to the first by a closed loop duct with a min. lever opening (8) in the first chamber and a high level opening (7) in the second chamber. Any loss of fluid is made up from the first chamber until the min. level warning operates. The vent line (12) for the second chamber is closed off by the cover (10) of the double chamber. The loop duct is formed along the joining flange of the two section moulding, which is angled so that tilting of the vehicle does not affect the warning.
Patent DE-2835430-A1 (DE)
Title: Fluid injection equipment for trees - fits directly onto trunk with pressure vessel to deliver into sap passages
Inventor: LAHEY HANS-PETER
IPC: A01G7/06
Filed: 1978-07-31
Abstract: The injection equipment fits directly on the tree trunk to deliver fluid directly into the sap passages etc. A pressure vessel containing the chemical is connected by a hose to injection nozzles in brackets secured round the trunk. the design avoids the risk inherent with the introduction of poisonous material into the ground.