baber/WOPTO huggingface dataset:
Patent DE-3003657-A1 (DE)
Title: 1,4-Di:amino-23-di:cyano-anthraquinone derivs. prodn. - by reacting di:amino-anthraquinone sulphonic acids with cyanide(s) in formamide or methyl-formamide
Inventor: KROECK FRIEDRICH WILHELM DR
IPC: C09B1/28
Filed: 1980-02-01
Abstract: Prodn. of 3,4-dicyano 1,4-diamino anthraquinones of formula (I) comprises reacting the corresp. 2- or 2,3-di-sulphonic acids (II) or their salts with a cyanide ion source using as reaction medium N-methyl-formamide or pref. formamide. (R is H, or opt.substd. (cyclo)alkyl; and X is H or sulphonic acid gp.). Opt. the reaction is carried out in the presence of an oxidising agent, and opt. also heavy metal catalyst and acid acceptor. The cpds. (I) where R is opt.substd. cycloalkyl are new.. The cpds. (I) are dyes and dye intermediates. By using these specific solvents, (I) are obtd. in improved yields with very high purity, i.e. below 3% of the mononitrile cpds. (which shift the bright, greenish-blue colour of pure (I) to less desirable reddish shades). Also less solvent is used so space-time yields are better.
Patent DE-3005816-A1 (DE)
Title: Points for guide rails on toy vehicle tracks - consist of two sections fitted behind each other with one fixed and second swivelling
IPC: A63H18/02
Filed: 1980-02-16
Abstract: The guide rails used for toy vehicles on tracks consists of two point sections positioned one behind the other in the direction of the rail and having a swivelling connection to each other within the plane of the track. One of which is firmly fixed to an incoming rail section, the other selectively swivelling towards outgoing rail sections. The fixed section is fitted with an impulse generator which when actuated during the passage of the steerable axis of a toy vehicle produces a steering deflection through which the swivelling point section is moved into the required position during the onward movement of the toy vehicle.
Patent DE-3010574-A1 (DE)
Title: Massive dual porosity gas electrode - has two contiguous layers one with pores for electrolyte contact and one with larger pores for gas contact
Inventor: MCINTYRE JAMES ARTHUR
IPC: C25B11/03
Filed: 1980-03-19
Abstract: Electrode for use in a vertical position in a large scale electrolytic cell comprises two juxtaposed contiguous porous layers. One layer has relatively fine pores and is for immediate electrolyte contact and the other has larger pores and is for gas contact. The pores in both layers define a network of interconnected interstitial passages which has a capillary pressure effect upon fluid forced into the network. The magnitude of the capillary effect is such that gas under a pressure of 1 psi can enter the larger pores but not the finer pores and so cannot bubble out through the composite electrode. Esp. suitable for use as an O2 gas bearing electrochemically reducing cathode in cells employing substantial electrolyte liq. depth creating head pressures greater than 1 psi.
Patent DE-3019133-A1 (DE)
Inventor: GERMANN FRITZ DIPL ING
IPC: H05B7/144
Filed: 1980-05-20
Abstract: A system for generating in-phase alternating current components which are fed into a medium held in a melting trough and flow in the medium between electrodes and counterelectrodes immersed in the medium to effect resistance heating. One embodiment of the system includes a supply voltage source, and a plurality of transformers each having a primary winding and a secondary winding, with the primary windings being connected together in series and to the source, each secondary winding being connected between a respective electrode and counterelectrode to provide a respective alternating current component, and each winding having a number of turns corresponding to the desired relative amplitudes of the current components. A second embodiment of the system includes a supply voltage source, at least one input transformer having a primary winding connected to the source and at least one secondary winding, and a plurality of additional transformers each having a primary winding and a secondary winding, with the primary windings of the additional transformers being connected together in series and in a closed loop, each secondary winding of the input transformer being connected in series with at least one secondary winding of the additional transformers between a respective electrode and counterelectrode to provide a respective alternating current component, and each winding of the additional transformers having a number of turns corresponding to the desired relative amplitudes of the current components.
Patent DE-3020747-A1 (DE)
Title: Automotive clutch self-adjusting mechanism - has two spring-loaded freewheels with clamping rollers and opposite ramp faces
Inventor: ASHAUER KARL
IPC: F16D13/75
Filed: 1980-05-31
Abstract: The self-adjusting actuating mechanism is for a clutch between an automotive engine and gearbox, having a pedal-operated lever coupled by a shaft in the clutch housing to a withdrawal lever, the latter acting on the withdrawal bearing in opposition to a spring. Between the pedal-operated lever (1), which is spring-loaded (34) and the clutch shaft end (2) emerging from the housing (6) is an adjusting mechanism (4). This comprises two freewheel mechanisms (11) with clamping rollers acting against ramp faces sloping in opposite directions, one behind the other in the peripheral direction and spring-loaded apart, also a release, which can turn in relation to the lever through a predetermined angle against spring action and has a stop washer (20) encountering a fixed stop on clutch engagement. Cages (16,19) coupled to the washer release the freewheel (11) engaged on clutch engagement, at the end of the engagement operation.
Patent DE-3022569-A1 (DE)
Title: Hollow sheet metal frame for building front - uses corrosion-resistant light alloy sheets shaped by deep drawing
Inventor: MAURUS JOSEF
IPC: B21D53/00
Filed: 1980-06-16
Abstract: The deep-draw press is fitted with a hold-down device (8) operated by hydraulically driven rods (7) carrying the sheet (9) which has suitable coatings on both surfaces. The upper ram (10) carries the die (11). When the ram (10) contacts the sheet (9) the pressure is controlled so that the material of the sheet is allowed to slide, but forming of folds is prevented. After the completed deep-draw operation the outer edges of the workpiece are stamped. The workpiece is then consecutively transferred to further processing equipment, where the external contours are produced by deep-drawing. The bottoms of the pan-shaped workpiece are cut away, to result in the hollow frame required.
Patent DE-3023102-A1 (DE)
Title: Retaining wall earth filled slabs - have horizontal arms, on flat earthworks, and axially movable on supports
Inventor: SCHUHBAUER ALBERT DIPL ING DR
IPC: E01F8/02
Filed: 1980-06-20
Abstract: Superimposed panels, backfilled with earth, gravel or similar, are fastened to supports protruding upwards from the base and secured against earth pressure, in a retaining wall for ground. Panels (6) have a cross-section with a horizontal (8) shank, and an outer shank (10) bent upwards. Horizontal shanks are set on the flattened tops of successive heaps of material (7,9), higher than the bent shanks. They are fastened to the supports so as to have limited displacement axially to these, but secured against horizontal movements. The supports are loosely supported on the substructure. Panels can be held so as to turn on the supports about axes parallel to their centre lines. They can rest on brackets, with lugs fitting holes in them.
Patent DE-3023419-A1 (DE)
Title: Foot-grip for wind-surfer - has plastics loop on adjustable swivel mounting
Inventor: MARKER HANNES
Filed: 1980-06-23
Abstract: The windsurfer foot grip has a plastics loop clipped to a support disc pivoted on the board to provide directional control. The ends of the loop are designed to loosen if the user tips into the water, preventing foot injury. The foot grip is secured to the board in different position with a series of threaded holes and a fixing screw. The grip enables the user to have improved control over the board without having complex foot holds. The swivel disc can be a double layer with the space in between to secure the ends of the loop. All the parts of the foot grip are of moulded plastics.
Patent DE-3023515-A1 (DE)
Title: Through flow electromagnetic gas valve - has membranes fitted to operating rod on either side of valve seat
Inventor: STAEHLE KURT ING GRAD
IPC: F16K31/06
Filed: 1980-06-24
Abstract: The valve has a spring-loaded closure element (5) with two identical membranes (9,16) coaxial to the latter positioned on either side of the valve seat (4). The working cross-section (A1,A2) of each membrane (9,16) is equal to the surface dia. of the closure element contacting the valve seat (4). Pref. the closure element comprises a sealing disc (5) cooperating with a flat valve seat (4) between the valve inlet (2) and outlet (3). The sealing disc (5)is positioned between one of the membranes (9) and a shoulder (7) of the valve operating rod (8) with a cylindrical element (10) fitted to the latter to hold the membrane (9) in position and having a screw socket receiving a threaded plunger (12), which fits through the centre of an electromagnetic coil (13). The other membrane (16) is similarly secured to the other end of the operating rod between a shoulder (7) and a cylindrical element (10). The valve is of simpler construction and does not require a double piston arrangement.
Patent DE-3023736-A1 (DE)
Title: Flexible plastic hose closure - by clips prevented from slipping by heat shrinkage induced bulge
Inventor: HEYSE KLAUS ING GRAD
IPC: A22C13/00
Filed: 1980-06-25
Abstract: A flexible case for food, esp. for sausage and meat, is made of a thermoplastic foil which is closed at both ends by a metal clip. The ends of the case which stand out beyond the clip are enlarged by a bulge, produced by applying heat to effect a shrinkage of the foil material. A tube or stretch-oriented polyethylene terephthalate foil of 20 mu thickness is folded in corrugations and closed by a clip of aluminium wire of 3 mm dia. The suspension cord is knotted to the clip. The ends is then exposed to a hot air stream (150 deg.C) for a few secs. to produce the bulge by heat shrinkage. This ensures that the clips with the suspension cords cannot slip off the sausage skin ends.
Patent DE-3025772-A1 (DE)
Title: Optical glass waveguide fibre mfr. - where pressure of gas or vapours is used to control cross=sectional dimensions of glass tube blank during internal coating
Inventor: HUBER HANS-PETER
IPC: C03B37/018
Filed: 1980-07-08
Abstract: Glass tube is coated internally with at least one further glass layer while the cross-sectional dimensions of the tube are adjusted, the tube then being used for mfg. fibres, e.g. by drawing. The adjustment of the tube size is pref. achieved by a gas and/or vapour mixt. flowing through the tube, possibly together with the use of tensile or compressive stress applied to the tube. The adjustment is pref. used so the bore dia. of an internally coated tube is the same as the bore dia. of an uncoated tube; or the wall thickness of the tube is unaltered; or the thickness of the coating attains a specified value. Used for data transmission in telecommunications etc. The coated tube has an accurate bore dia. and an accurate external dia. which aids the drawing of fibres with low attenuation.
Patent DE-3028258-A1 (DE)
Title: Inflatable frame projection screen - has double walled screen with evacuated space giving concave shape to screen surface
Inventor: ASTEROE ULF JAN ERIK
IPC: G03B21/585
Filed: 1980-07-25
Abstract: The outer support frame for the screen has a hollow section shape which is inflated via a first control valve (5) to form a rigid structure. The frame is fitted with double walls (1,2) of flexible material to form the screen, with the space between the walls evacuated to hold the screens in a concave shape for close proximity projection. The whole screen folds into a compact package and is erected using simple manual pumps. One of the flexible walls is coated for projection while the other is a backing wall. The frame forms a rectangular shape screen and can have extended front lips to form a hood over the screen.
Patent DE-3028873-A1 (DE)
Inventor: LAUER KARL DR RER NAT
IPC: C07D493/04
Filed: 1980-07-30
Abstract: The present invention provides a process for the preparation of 1,4:3,6-dianhydro-D-glucitol-5-nitrate, in which (a) 1,4:3,6-dianhydro-D-glucitol is acetylated with 0.5 to 1.5 mole equivalents of acetic anhydride in the presence of a catalyst, a mixture of 1,4:3,6-dianhydro-D-glucitol-2-acetate, 1,4:3,6-dianhydro-D-glucitol-5-acetate and 1,4:3,6-dianhydro-D-glucitol-2,5-diacetate being obtained; (b) the mixture is nitrated with nitric acid, a mixture of 1,4:3,6-dianhydro-D-glucitol-2-acetate-5-nitrate and 1,4:3,6-dianhydro-D-glucitol-5-acetate-2-nitrate being obtained; and (c) hydrolysis is carried out with an inorganic base to give 1,4:3,6-dianhydro-D-glucitol-5-nitrate; wherein, in step (a), the reaction is carried out in the presence of a basic catalyst and the 1,4:3,6-dianhydro-D-glucitol-2,5-diacetate is substantially removed before further working up.
Patent DE-3030655-A1 (DE)
Title: Continuous prodn. of poly:isocyanate - involves initial reaction in which organic di:isocyanate is reacted with adduct agent to produce gas and intermediate having urea bond
Inventor: KOMATSU KAZUROU
IPC: C07C263/16
Filed: 1980-08-13
Abstract: Method comprises reacting organic diisocyanate with adduct agent to produced gas and intermediate product having urea bond. The initial reaction is carried under stirring and mixing, and the following reaction is then carried out under extrusion current. Prodn. of cpd. having urea group and high molecular polymer is controlled and transparent polyisocyanate of low viscosity is obtd. efficiently. The diisocyanate is e.g. hexamethylene diisocyanate. The adduct agent is >=1 of water, tert-butanol, formic acid, H2S and methylamine. Quantity of organic diisocyanate used is 5-40 times by mol to the adduct agent. The initial reaction is pref. carried out >=1 reactor having stirrers till generation of gas becomes approx. 80% w.r.t. total genration quantity.
Patent DE-3034382-A1 (DE)
Title: Feed chute for bearing roller machining tool - has spring diverter and sprung side wall to turn each roller with axis across chute
Inventor: MOELLER LOTHAR
IPC: B65G47/244
Filed: 1980-09-12
Abstract: The arrangement is intended for changing the position of cylindrical or barrel-shaped rollers (5) for roller bearings in a feeding system of a high-speed automatic machining process. It comprises an inlet chute (1) through which the rollers move in their axial direction. This chute is provided with a spring-loaded ejector (2) which diverts each roller into a downwardly inclined run-out chute (3). This chute (3) has a spring-loaded side wall (4) whose entry point (7) is arranged to turn each roller with its axis across the chute (3) so that it rolls down.
Patent DE-3035753-A1 (DE)
Title: Butterfly specimen preservation by embedding in plastic - in which casting is carried out in three stages and specimen is placed on second cast layer before embedding
Inventor: JAECKEL ERICH
IPC: A01N1/00
Filed: 1980-09-22
Abstract: Preservation of butterfly specimens comprises embedding in plastic. Casting is carried out in three layers. The butterfly is plasted on the dry plastic after casting the second layer, covered with a transparent sheet and the third layer is then cast on top of it.
Patent DE-3042549-A1 (DE)
Title: Chest expander training appts. - has sockets on ends of elastic cords with spring arms carrying hooks engaging fittings in handles
Inventor: WEINTZ LOTHAR
IPC: A63B21/055
Filed: 1980-11-12
Abstract: The expander has elastic cords fitted on both ends with sockets for their connection to the frame shaped handles. The sockets each have two arms fitted with counter hooks, sprung relative to each other which can be inserted into holes of the head section of the handles which forms the cord holder and which fit behind the head section with their counter hooks under tension. Each of the sockets (7) carries at one end a hollow-cylindrical, rotatable element (11) with an elongated hole at that end facing away from the socket (7) with the arms adjoining its wall under tension.
Patent DE-3042760-A1 (DE)
Title: Self loading container lorry - has container supported directly on chassis with locating wedges and height adjusting suspension
Inventor: WACKENHUT ERNST
IPC: B60P1/64
Filed: 1980-11-13
Abstract: The container for lightweight loads has extending struts to support it on the ground while the pneumatic suspension of the front- and rear axles is lowered and the vehicle driven away. To load the container it is located directly onto the chassis by sloping wedges (8) under the sides of the container locating in U-shaped guides (5) on the sides of the chassis members. No separate lifting frame is required and the usable height of the container is increased by the thickness of such a frame. The mounting is simple and low cost. The forward movement of the container is braced on an elastic pad (10) behind the cab and no roller gear is required on the bottom of the container.
Patent DE-3043473-A1 (DE)
Title: IC engine inlet vacuum-operated secondary air valve - loaded by spring and weight in oil chamber with sleeve adjustable to vary damping force (NO 22.12.80)
Inventor: LOEKKA JENS LEIF
IPC: F02M23/09
Filed: 1980-11-18
Abstract: The valve is intended for admitting secondary air to the connection between the carburettor and the inlet manifold of an i.c. engine. It is operated by the inlet vacuum and comprises a housing containing a closure member on a valve stem which extends downwards through the seat opening into a liquid-filled downwardly converging conical chamber. The member is spring and weight loaded to close and the weight is contained in the liquid and forms a gap with the chamber wall to damp valve movement due to the vacuum. The weight carries an outer sleeve which is axially adjustable to set the width of this gap.
Patent DE-3045380-A1 (DE)
Inventor: DIEPHOLZ TILO DIPL ING
IPC: G11B31/00
Filed: 1980-12-02
Abstract: 1. Recording/reproducing apparatus, connected to a radio traffic service receiver, for sound-recording tapes arranged in cassettes and having two separate prerecorded recording tracks for forward and reverse running, characterised in that, for the subsequent recording of traffic information and its later reproduction, an additional magnetic head is movably supported, in housings which are simultaneously used for tape guidance, at the level of the intermediate space existing between the recording tracks and that the circuit associated with the additional magnetic head can be connected, for recording a traffic message, to the LF section of the radio traffic service receiver by the decoder of the radio traffic service receiver, the circuits associated with the reproducing heads of the reproducing apparatus remaining in their instantaneous switched state.
Patent DE-3049272-A1 (DE)
Title: Partially crosslinkable compsn. of olefin! copolymer rubber - and polyolefin resin, impregnated in aq. suspension with crosslinking agent, and crosslinked elastomer
Inventor: YUI HIROSHI
IPC: C08J3/21
Filed: 1980-12-29
Abstract: A partially cross-linkable material contg. (a) 100 pts. wt. of a mono-olefin copolymer rubber, (b) 10-900 pts. of a polyolefine resin, and (c) 0.1-40 pts. of a cross-linking agent, is prepd. by (1) suspending a granular material essentially of (a) and (b) in an aq. and (2) impregnating the granular material with (c) under conditions such that no decomposition of (c) occurs. A partially cross-linked thermoplastic elastomer is obtd. by (3) heating the comsn. to a temp. at which (c) decomposes. The cross-linking agent is uniformly and selectively distributed in the rubber at low temp. The amt. of (c) can be controlled easily. The compsn. can be converted by heating into a thermoplastic elastomer which is uniformly cross-linked to the required degree. The content of sol. organic material in the elastomer is lower. The elastomer can be used as insulation and sheathing on wires, vehicle parts, packings, flexible tubing, weather strips, and lamp housings.
Patent DE-3101523-A1 (DE)
Title: Safety valve
Inventor: SPERBER KURT
IPC: F16K17/04
Filed: 1981-01-19
Abstract: A safety valve is provided which quickly vents a pressurised container (20) and can be closed again in a simple manner. To this end, a cover (1), which blocks a connecting piece (3), is pressed by spring force in a sealing manner into a ring flange (4). At least two compression springs (12) are attached to opposite sides of the connecting piece (3) and are held with their ends pointing towards one another on an axis (13) in such a manner that, when the cover (1) is closed, the compression springs (12) are in a V-shaped position. The resulting spring force is hence directed away from the cover (1). When the cover (1) is opened, the compression springs (12) flip over into a reversed V-shape, so that their resulting spring force acts in the direction of the cover (1) and holds the safety valve open. <IMAGE>
Patent DE-3104013-A1 (DE)
Title: System for detecting an abnormal internal tyre pressure
Inventor: KOMATU SATURO
IPC: G08C15/10
Filed: 1981-02-05
Abstract: A detector system for detecting an abnormal internal air pressure of a tyre of a motor vehicle produces an alarm when an abnormal change in the air pressure in the tyre is detected. The system comprises a first device which is arranged on a wheel (or on a rotating part) of the motor vehicle and a device for detecting an abnormal pressure using a crystal resonator and an aerial for transmitting the detection information into the air; and a second device which is arranged in the vicinity of a vehicle seat (or on a non-rotating part) and has a transmitter/receiver arrangement which is provided with an aerial. The crystal resonator is driven by excitation energy which is emitted by the transmitter component of the transmitter/receiver. Directly after the termination of the transmission of the excitation energy, a signal is discharged by the crystal resonator, specifically on the basis of oscillation energy collected in the resonator, and is received by the reception part of the transmitter/receiver in order to indicate an abnormality in the internal pressure of the tyre if one is present. The crystal resonator is either used simply as a transmitting device for information (abnormal reduction in the air pressure in the tyres) in combination with an abnormality detector switch (an element which responds to pressure) or is utilised both to detect an abnormal pressure and to transmit the information.
Patent DE-3105752-A1 (DE)
Title: Method and device for the continuous photometric on-line measurement of specific surfaces of dispersed solids
Inventor: LESCHONSKI KURT PROF DR ING
IPC: G01N15/08
Filed: 1981-02-17
Abstract: The continuous on-line measurement of the specific surface of dispersed solids has not yet been satisfactorily achieved. A method and a device are proposed for this purpose in which a uniform suspension of the solid in a flowing medium is passed through a cross- sectionally flat, in particular an approximately rectangular short flow path, in which the measurement is carried out. The transport concentration of the solid is determined from the absorptive attenuation of a gamma ray or a radionuclide ray which passes through the flowing medium perpendicular to its direction of flow and parallel to its width extension. At the same point, the attenuation (absorbance) of a light ray which passes through the flow path perpendicular to its flow direction and parallel to its thickness extension is determined and the photometric specific surface is determined therefrom taking account of the transport concentration, in particular using an evaluation device (for example a computer). <IMAGE>