baber/WOPTO huggingface dataset:
Patent DE-2851112-A1 (DE)
Title: Flash distn. of liquids with heat pump - having control of distn. rate by cooler on high pressure side of heat pump circuit
Inventor: MANN GEROLF
IPC: B01D3/00
Filed: 1978-11-25
Abstract: Distn. system for liquids has a liq. evaporator with a vapour condenser mounted after it. The heat recovered in the condenser is returned to the evaporator via a heat pump. A sec. cooler is mounted in the heat pump circuit on the pressure side of the refrigerant. This has a cooling medium flowing through it, the flow of which is controlled by the pressure in the condenser. Thus the boil up rate in the evaporator is adjusted by the amt. of heat absorbed from the refrigerant before it reaches the evaporator. Used for the removal and recovery of volatile components from liquid mixtures. Arrangement allows the loading of such plants to be adjusted simply depending on the operating conditions.
Patent DE-2855245-A1 (DE)
Inventor: PASTOREK EMMERICH DIPL CHEM DR
IPC: C07D307/71
Filed: 1978-12-21
Abstract: An improved process for the production of  beta -(5-nitro-2-furyl)-acrolein by reacting 5-nitro-furfural and acetaldehyde in the presence of a secondary amine, the improvement comprises effecting the reaction in an aliphatic carboxylic acid of 2 to 4 carbon atoms.
Patent DE-2900069-A1 (DE)
Title: Determn. of oxygen activity, esp. in molten steel - via measuring head using conducting bush to carry solid electrolyte tube contg. comparator substance
Inventor: BAMBERG GERD
IPC: G01N27/411
Filed: 1979-01-02
Abstract: The measuring head includes a carrier (1) made of a refractory mass contg graphite and conducting electrons, but possessing a low thermal conductivity. On carrier (1) is a probe/contg. a comparator substance of known oxygen activity and sepd from the melt by a solid electrolyte which, at high temps., conduct oxygen ions but has negligible conductivity for electrons. The grain sizes of the graphite and the refractory in the carrier (1) are pref small and matched so they bond together; and carrier (1) may be made of material employed to make ladle stoppers, esp using 20% graphite and 80% mullite, where 2-10 wt % of the mullite is bentonite. The measuring head is strong and does not give rise to false measurements.
Patent DE-2907760-A1 (DE)
Title: Sliding contacts for earthing device - consists of tube with tapered end fitting inside tube incorporating end stops and guides
IPC: H02B1/16
Filed: 1979-02-28
Abstract: The earthing device using one contact member which slides inside another, uses two tubes (1) as contact members. The part (2) which is inserted in the other tube is cold drawn to a suitable diameter to fit inside the parallel tubular part (3) of the outer tube. This inner part is also tapered at its tip (2'). The outer tube is also formed, e.g. with a ring of spherical impressions (4) protruding inside, so as to form a stop for the tapered end of the inner tube. In order to prevent the two tubes from moving radially, axial guide grooves can also be formed along the inner tube.
Patent DE-2914383-A1 (DE)
Title: Thermoplastics component frictional welding appts. - has rotary and axially movable spindle for one component and suction grippers holding other component
Inventor: STOLZ GERD PROF DIPL ING
IPC: B29C65/00
Filed: 1979-04-10
Abstract: Appts. for frictional welding of thermoplastics components has a spindle supported by a holder and carrying a component to be welded to a larger component. Spindle holder is supported by a support disposed externally of the frictional surface and the component is engaged by a counter support. Welding is no longer dependent on the size of components.
Patent DE-2917389-A1 (DE)
Title: Deaerator for central heating system - having partition with holes cut in it such that the water is deflected down as it flows through and the air continues up (NL 6.11.79)
IPC: B01D19/00
Filed: 1979-04-28
Abstract: Air is sepd. out of a closed circulation system (e.g. central heating) by means of a separator vessel which has an air outlet on the top. The inlet and outlet for the water lie on either side of a partition and both are connected to pipes which are directed towards the top of the vessel. Partition has a series of openings formed by bending the metal towards the inlet. This causes the incoming water to be deflected downwards while any air bubbles proceed upwards to the top. Used on central heating systems. Provides a very effective means of removing air bubbles and dirt particles. present in the recirculating water.
Patent DE-2920265-A1 (DE)
Title: Convertible bed settee with bed linen box - includes hinged flaps forming box allowing rapid conversion to bed with mattress fixed to frame
Inventor: ROVER DANIEL
IPC: A47C17/04
Filed: 1979-05-18
Abstract: The bed linen box (10) which extends above an area of the mattress is designed as a flap structure and the individual flaps (9, 11) which are connected together by hinges (8) are attached to a side wall (4) of the bed. The mattress is firmly connected to the bed frame so that when the sofa bed is extended for sleeping the entire bed box is swung out and locked in this position by e.g. a swivel bar (20) whereupon the bed linen can be simply rolled over the bed, ensuring that the entire width of the mattress is available. The rear longitudinal wall (3) and the two side walls (4) of the bed (1) at least in the area of the linen box (10) are raised and the hinge (8) for the box is provided on the upper edge of the rear longitudinal wall (3). The first folding shelf (9) connected to the rear longitudinal wall (3) then rests horizontally on the raised side walls (4) of the bend while the second shelf (11) which is connected to the first, lies on the mattress (7).
Patent DE-2929566-A1 (DE)
Title: Asynchronous machine inverter with impressed DC - has bridge and distribution diode circuits connected through thyristors into two commutator capacitors
Inventor: BEZOLD KARL-HEINZ
IPC: H02M7/515
Filed: 1979-07-19
Abstract: In the self-regulating rotary inverter in which the commutator capacitance has been reduced from six units to two of higher capacitance by rearrangement of the rotation current bridge and the distribution diodes. The arrangement is esp. suitable for asynchronous machines. The upper bridge quench thyristors (1.3.5) of the upper rotation current bridge section (7) as well as the lower quench thyristors (2,4,6) of the lower current bridge (7a) each has a general commutator capacitor (17,18) for group quench,. The one capacitor (17) is connected via a controlling thyristor (19) to the +ve pole of the impressed current (Id) dc source and the second capacitor (18) and thyristor (20) are connected to the -ve pole. The two groups (11,12) (each a.b.c.) of the distribution diodes are connected in star formation so that they are parallel yet group-wise anti-parallel to the motor (10) phases (R,S,T) and are connected at the star point to further quench thyristors (14,15) with common connection to the common point of the commutator capacitors (17,18).
Patent DE-2944639-A1 (DE)
Title: Throwaway syringe with injection fluid bottle - sepd. by flexible membrane before bursting it open
Inventor: RAPP HANS
IPC: A61J1/20
Filed: 1979-11-05
Abstract: Parent Patent DE 2940949 described a throw-away syringe which is joined through a coupling to a small bottle for the injection fluid so that the syringe can be filled by simple retraction of the syringe piston. In an improved embodiment the syringe is kept sepd. from the fluid bottle by a stopper with a thin flexible membrane (rubber), held together by a metal (Al) clip. The piston is not in the top dead centre position so that the membrane can be burst open by moving the piston forward prior to filling the syringe by retraction. Such a syringe consists of a min. of parts which are simple to produce and to assemble. It ensures a perfect sterility for the filling process.
Patent DE-2944961-A1 (DE)
Title: Safe prepn. of benzo:furazan-1-oxide(s) - from phase transfer reaction of a 2-nitroaniline and hypochlorite, useful as intermediates for antimicrobial cpds.
Inventor: FAEH HANSJAKOB DR
IPC: C07D271/12
Filed: 1979-11-07
Abstract: Benzofurazan-1-oxides (I) are prepd. by treating of a 2-nitroaniline (II) with MOCl (M = alkali metal) in a 2-phase solvent system (H2O and an H2O-immiscible solvent) in the presence of a phase-transfer catalyst (III): (where R1R2=H, halo, alkyl (opt. substd. by halo, OH, NH2 (and mono- and di-alkyl), alkoxy, alkylthio, alkoxycarbonyl, SO2NH2 or CONH2 (and N-alkyl and N,N-dialkyl derivs. of both(, CO2H, or CN, or one of R1R2 is a gp. (III), Z=H, halo, alkyl, alkoxy, alkylthio, CF3, n = 0-2, X =O,S,SO, or SO2, and all alkyl, alkoxy, etc. = 1-4C). Safe, phase-transfer reaction avoids the known hazards associated with the prepn. of (I) (formation of explosive hypochlorous acid esters, and the isolation of dried, thermally unstable (I)), and is acceptable ecologically. (I) are inters. for antimicrobial quinoxaline-1,4-dioxides and may be used in situ. in the solvent).
Patent DE-2950882-A1 (DE)
Title: Divided roller - has adjustable sections to orient moving fabrics
Inventor: KUDLICH HANS DIPL ING DR
IPC: D06H3/12
Filed: 1979-12-18
Abstract: The diameters of the roller sections are of different sizes, to straighten moving pices goods by orienting the lines of wefts and/or stitches. The sections of the divided roller are so constructed that the outer surface is made up of segments, on adjustable beams, to be moved radially as required, using setting bolts and axial cone discs. The segments are supported by leaf springs to prevent them from moving back, with the springs held radially on elastic mountings. Alternatively, the segments are supported by coil springs pressing against hollow rubber tyres to prevent friction wear, the tyres being inflatable to alter the position of the segment in question. The divided roller is operated by a speed controlled DC motor. Rubber tubes, or rubber bands, are pulled over the segments to give an uninterrupted outer surface. The dia. of the roller sections can be set so that the whole roller has a conical form, and the adjustment of the roller segments is determined by sensors which register the lie of the wefts or the stitches. The design ensures that the fabric can be straightened while moving, without imposing excessive longitudinal fabric tension.
Patent DE-3007992-A1 (DE)
Title: Reversible plough hydraulic inversion mechanism - has control plunger with small and large faces pressurised in turn
Inventor: HAEUSSER HERBERT
IPC: A01B3/421
Filed: 1980-03-01
Abstract: The hydraulic inversion mechanism is for a reversible plough mounted on a tractor, having a double-acting ram and a changeover unit. A housing has first and second connections to the ram pressure chambers, also a union with external control valve to the pressure source, and a return union to a storage tank or buffer accumulator. A control plunger sliding in the housing is permanently spring-loaded into one of two control positions, while the hydraulic pressure acts against a face of the plunger in opposition to the spring, moving it into the second control position when pressure exceeds a set value. The plunger (10) is in the form of a 4/2-way valve, and its face against which the hydraulic pressure acts is small in relation to its total cross-section. After it has moved for a predetermined stroke from the first to the second control position, a connection is made between the pressure-supply union (13) and a control chamber (41), part of which is formed by a face (40) on the plunger large in relation to its cross-section, and likewise opposed to the return spring (16).
Patent DE-3015234-A1 (DE)
Title: Signal transmission system with time sequence control - measures unspecified interval between signal recognition and transmission to central processor
Inventor: SMUTNYA KURT DIPL ING
IPC: G04G7/00
Filed: 1980-04-21
Abstract: The signal transmission system allows the central processor to place the signal from the detection circuit in the correct time raster sequence. The detection circuit incorporates a counter which records the time interval between recognition of the signal and its subsequent transmission to the central processor in response to a call signal. The contents of this counter are transmitted ot the central processor together with the signal and subtracted by the processor from the contents of a control counter, both counters indexed by the same clock frequency. The result of this subtraction allows the signal to be correctly inserted in the time raster sequence for the control processor. Pref. both counters comprise microsecond counters. The system is employed with a process control circuit allowing the instant of detected signal values to be measured precisely or for a clock synchronisation circuit, to allow precise measurement of any differences in the indicated time of slave clocks and a master clock.
Patent DE-3019303-A1 (DE)
Title: Pipe clip for supporting rail - has interlocking arms forming gripping chamber with ribs to grip different pipe diameters
IPC: F16L3/10
Filed: 1980-05-21
Abstract: The pipe supporting system using clips each consisting of a lower member (1) which locks inside an upper member (11) can be used with channel shaped supporting rails. The lower member has a base (2) with two curved arms (5) projecting upwards and the upper member has a flat top (12) with two curved arms (13) hanging downwards to fit over the lower arms to form a circular space to hold the pipe. The upper arms have teeth projecting inwards to interlock with teeth (6) projecting outwards from the base of the lower member. The lower arms have radial tongues (7) projecting inwards to support the pipe resiliently, and the underside of the flat top of the upper member has resilient tongues (17) projecting downwards to compress the pipe when the two members are interlocked. This enables pipes of different sizes to be clamped. The base of the lower member has grooves (9) for the arms of an adaptor which also has grooves for the arms of the supporting rail on which it is mounted.
Patent DE-3024228-A1 (DE)
Title: Multistage washing and neutralising of nitrous gases - esp. from metal pickling processes, uses injectors with neutralising soln. for exhausting gases at source
IPC: B01D53/34
Filed: 1980-06-27
Abstract: Appts. for washing gases out of extracted process air, esp. for washing nitrous gases, operates in two or more stages:- in the first stage the nitrous gases, mixed with the ambient air, are extracted at the place of origin by injectors, to remove them from the operating space: in one or more succeeding stages, these extracted gases are conducted through a packed bed, wetted with neutralising soln. Pref. a specific, partial quantity of neutralising soln. is used as propellant and washing liq. for the injectors, while a second portion of the neutralising soln. flows over the packed bed in which the second or later stages of the washing is carried out. Used esp. for trapping and neutralising vapours produced in acid surface treatment of metal components. The vapours are entrained at the place of oriqin, thus preventing their propagation. By using the neutralising soln. as the propellant for the injectors, an immediate, if incomplete neutralisation is carried out at the first stage.
Patent DE-3026084-A1 (DE)
Title: Weighing system for controlling bagging machines - has vibrating chord sensing and dual-arm vibration counterweight levers
Inventor: HERDA DIETER
IPC: G01G3/16
Filed: 1980-07-10
Abstract: The weighing device (16) has conventionally tensioned vibrating chords, one of which is loaded and the other relieved when the system is under load. The evaluation system analyses their frequency difference to determine the loading of the weight support (4) on which the bag is placed. The sack supporting device (4) is connected to the weighing device (16) via a linkage (15) connected to one arm of a pivoting two-armed lever, whose other arm carries a variable wt. Alternatively, the linkage (15) may be connected to two opposed dual-armed levers.
Patent DE-3030819-A1 (DE)
Title: Rainproof profiled concrete roof tile - has outward rising inclined longitudinal fold and rounded bottom rib ridges
IPC: E04D1/04
Filed: 1980-08-12
Abstract: The flat surface, semicircular central elevation, cover fold corresponding to this, and top lengthways fold, with edge fitting the cover fold and multiple bottom ribs, are incorporated in a concrete roof tile. The lengthways fold (4) is aligned so as to slope and rise outwards. The ridges of the ribs (6) are rounded. The lengthways fold inclination is pref. at least 15 deg. in relation to the plane of the watercourse face (2), the angle being determined by the common tangent onto the water fold configurations (5) of this fold. Rainproofing is enhanced.
Patent DE-3032087-A1 (DE)
Title: Centrifugal fan with profiled inlet - has adjustable flow guide on inlet to vary throughput without loss of efficiency
Inventor: KOHL HANS
IPC: F04D27/02
Filed: 1980-08-26
Abstract: The fan has an impeller with a backplate (65), a front plate (25) and radial blades (17) between them. The casing (11) has an outlet opening (16) with a venturi shaped nozzle (20) leading into the eye (22) of the impeller. The front plate (25) of the impeller has a curved lip (34) which overlaps the end of the nozzle. A shaft (62) from the inlet side of the casing carries a saucer shaped profile (61) which extends to the back (64) of the inlet edge of the blades and forms an inlet passage (15) with the end (21) of the nozzle (20). This profile can be moved axially to vary the circumferential inlet area onto the blades.
Patent DE-3035656-A1 (DE)
Title: Torque wrench with pivoted handle - has hollow cylinder with notches in bottom accommodating flat end of torque-transmitting element
Inventor: HEINLEIN HANS
IPC: B67B3/20
Filed: 1980-09-20
Abstract: The torque spanner has a hollow cylinder (1) with notches (2) on its bottom (15) to which a handle (16) is attached tiltably around a pivot (17). The hollow cylinder accommodates a holding part (3), which is exchangeable and carries the transmission element (4), the flat tip (5) of which rests in one of the notches provided in the bottom (15). The transmission element is rigid and its other end is connected to a cylindrical part (12) seated in the radial opening (9) provided in the shell part of the cylinder. The openings (9) are provided in the cylinder shell either as a pair with diametrally opposite positions or two pairs in a cross layout. The holding part carrying the centrally located square stub (20) is kept in place inside the hollow cylinder by a washer and secured by a spring clip.
Patent DE-3040015-A1 (DE)
Title: Work lamp for pedicure treatment - incorporates central heat source for stimulating circulation before and during treatment
Inventor: KIRCHMANN KURT
IPC: F21S8/00
Filed: 1980-10-23
Abstract: The lamp comprises a reflector housing enclosing an annular light tube which surrounds a central heat source. The latter can be selectively switched ON and OFF pref. in conjunction with an associated hot air fan positioned at the rear of the heat source. Pref. the heat source fits into a casing containing the hot air fan and together with the heat source defining an annular air channel with peripheral exit openings coupled alternately to two sets of flow channels in the reflector housing upon rotation and/or axial movement of the casing. The lamp allows heat to be provided for stimulating circulation before treatment removing the necessity for a warm foot bath.
Patent DE-3040903-A1 (DE)
Title: Combination steering column switch for vehicles - has multiple stalks operating contacts through intermediate selected levers
Inventor: IWATA MASAYOSI
IPC: B60Q1/14
Filed: 1980-10-30
Abstract: The combination steering column switch unit is for vehicles. The mass produced item has facilities for lights, washers, and wipers. The unit comprises a turn and hinge switch lever (7) (LA). The switch arm (7) operates a first (13) and second (16) switch movement on different axes and operated by turning the switch lever (7). The switch unit is built up as multilayer block with a contact and switch lever carrier located under the operate levers. The second operate lever (16) moves further levers (54) to access these contacts, when the switch lever (7) is turned. A similar operation connects different switch elements to the first lever (13). Also on the switch unit at the other side of the column position is a second switch lever.
Patent DE-3045606-A1 (DE)
Inventor: TROOST MARCEL ABRAHAM DIPL ING
IPC: H04Q11/04
Filed: 1980-12-03
Abstract: Due to a control engineering context, write and read pulse frames of time-slot multiplexers of different switching matrix stages in a multi-stage, time-division multiplex switching matrix network exhibit coinciding pulse frame boundaries. In deviation therefrom, pulse frame boundaries of the pulse frames on switching network internal time-division multiplex lines are offset due to delays that are caused by serial-to-parallel and parallel-to-serial conversions of a partial information upon their intermediate storage in the time-slot multiplexer. Of two complete memories per time-slot multiplexer, one part of the one memory and another part of the other memory are inscribed during the pulse frame of an incoming time-division multiplex line. Auxiliary information is derived from an address (corresponding to the outgoing time channel) serving for the selection of a holding memory and form an address (corresponding to the incoming time channel) assigned for reasons of switching engineering and serving for the selection of a complete memory, the auxiliary information indicating from which of the complete memories the information to be forwarded is to be read so that, given multi-channel connection, the required sequence of the partial information is assured.
Patent DE-3047461-A1 (DE)
Title: Metal-plastics accumulator plate - with pockets formed in two plastics coatings filled with active material
IPC: H01M4/04
Filed: 1980-12-17
Abstract: A metal-plastic electrode for accumulators consists of a metal (lead) framework with a solid surrounding and parallel ribs, joined by spacers. Thermoplastic mat material, shaped to form semicylindrical or polygonal pockets to hold the active material, are separated by flat sections which are welded together when the two side surfaces have been covered. This ensures a good contact between the ribs and the active material and simplifies the application of the active paste.
Patent DE-3105047-A1 (DE)
Title: Process for the preparation of substituted ethylene oxides from substituted ethylene carbonates
Inventor: MCENTIRE EDWARD ENNS
IPC: C07D301/02
Filed: 1981-02-12
Abstract: Substituted ethylene carbonates of the general formula <IMAGE> in which R is an alkyl, aryl, alkaryl or aralkyl radical, are converted to the corresponding ethylene oxides by heating them in the presence of lanthanum iodide.
Patent DE-3114184-A1 (DE)
Title: Veneer peeling machine with tying blade
Inventor: HASEGAWA KATSUJI
IPC: B27D1/00
Filed: 1981-04-08
Abstract: The invention creates a veneer peeling machine fitted with a tying blade. The tying blade has a cutting edge running perpendicularly to the veneer peeling blade of the machine. The tying blade cuts an endless slot in a trunk and draws a cord into it. The drawn-in cord is held down in the slot up to the run-off side of the cutting edge of the peeling blade by devices present at the machine. The arrangement described ensures that the endless slot is formed without the veneer bulging or being damaged in some other way, and that the cord drawn into the slot, when the veneer is being peeled off the trunk, is reliably held in position in the slot so that it cannot be pulled out of it.