baber/WOPTO huggingface dataset:
Patent DE-2401102-A1 (DE)
Title: Solvent extraction of butadiene from pyrolysis gases - using ethylene carbonate, prep contg water or propylene carbonate
Inventor: HABENICHT EWALD DIPL ING
IPC: C07C7/11
Filed: 1974-01-10
Abstract: (I) is selectively recovered for mixts. of 4C hydrocarbons by washing with ethylene carbonate (II) opt. contg. water (pref. 15-30 wt. %) or propylene carbonate (III) (pref. 20-40, esp. 25.5 wt. %). (II) has high selectivity for (I) in presence of other 4C components. (I) is used to make elastic polymers; as additive for drying oils; its Fe pentacarbonyl complex is an antiknock agent for aviation spirit, its Co carbonyl hydride complex is a catalyst for the 'oxo' reaction; (I) is also an inter. for thiophene and for hexamethylenediamine a component of nylon. (I) has low volatility; is hydrolytically stable; physiologically well tolerated; easily prepd. and may be regenerated without polymer formation.
Patent DE-2405164-A1 (DE)
Title: Pneumatically sealed watertight bathing cap - has internal peripheral tubular air chamber inflated as required
Inventor: WOJACZEK WILHELM
IPC: A42B1/12
Filed: 1974-02-04
Abstract: The air-tight bathing cap comprises a hood which is provided around the inside with a tubular narrow air chamber of soft rubber or plastics which is welded onto the inner edge of the hood during manufacture. The air chamber is provided with a valve so that it can be inflated with air as required. The outside of the cap is provided with a reinforcement beaded edge to protect the air chamber and ensure that the pressure is applied to the head to keep out the water. The air pressure can be adjusted for a perfect fit and it is possible to inflate the air chamber either before putting on the cap or afterwards in which case a tube can be provided leading from the air chamber tube taken up by the mouth.
Patent DE-2410152-A1 (DE)
Title: Loose fibre impregnation process - uses application of treatment agents before fibres pass through bath to reduce immersion time
Inventor: MUEHLEN ROLF
IPC: D06B3/02
Filed: 1974-03-02
Abstract: The system to apply a fluid treatment process to loose fibres, in the mfr. of non-woven fabrics and feltings, uses a funnel gap between the adjustable conveyor support roller and the semi-immersed impregnating drum or treatment agents to be applied to the loose fibres before entering the treatment bath. The process allows a controlled application of the treatment agents ensuring a correct dosing, with a short immersion in a bath to give easier squeezing or other methods of surplus fluid extraction.
Patent DE-2412244-A1 (DE)
Title: Exhaust system for multi cylinder IC engine - long primary pipes pass through transversely disposed interconnecting duct
Inventor: LANGE KARLHEINZ DIPL ING DR
IPC: F01N13/04
Filed: 1974-03-14
Abstract: To avoid performance losses and at the same time to yield a relatively pollution free exhaust an internal combustion engine has long individual exhaust primary pipes for each cylinder. Adjacent the cylinder block each pipe passes through a transversely disposed duct and communicates with the centre of the duct via an opening in the pipe wall. Air can be injected into the duct through openings for 'after-burning' with pollutants in the engine exhaust. The primary pipes are collected into a single pipe downstream of the duct and the exhaust gases are then passed through a catalytic cleaner.
Patent DE-2418143-A1 (DE)
Title: Electromagnetic pulse generator - has ferrite core carrying coil former and magnetically permeable case
Inventor: ZOEBL HARTMUT
IPC: G01P3/488
Filed: 1974-04-13
Abstract: The case forms with the ferrite core an annular air-gap at one end. These two components are firmly joined by a hardenable insulating compound. The coil former can axially move towards the case end with the air-gap. It is an insulating sleeve inside which the ferrite core can move axially. The coil former inner wall has several longitudinal ribs formed on it for guidance of the ferrite core. The ferrite core at one end projects from the insulating sleeve in the air-gap area, and has a groove for the locking-in of the insulating compound.
Patent DE-2418182-A1 (DE)
Title: Recovery system of latent underground heat - using positive feed hot water circulation and steam processes
Inventor: RAUTH PHILIPP
IPC: F24D11/00
Filed: 1974-04-13
Abstract: Latent underground heat is recovered by inserting two concentric pipes deep in the soil, of which the inner pipe conducts cold water underground while hot water flows to the surface through the gap between the two pipes, i.e. in the outer pipe, via heat-insulated underground water table acting as a storage heater from which may lead one or more supply pipes with expansion chambers. The method may be used to heat rooms, supply hot water, or prevent freezing of roadways and pavements.
Patent DE-2422896-A1 (DE)
Title: Magnetic clamping arrangement for work table - using permanent magnet strips with alternating polarity along their length
Inventor: HALLMANN HERMANN
IPC: B23Q3/154
Filed: 1974-05-11
Abstract: The magnetic clamping forces are increased or decreased by having magnet assemblies in rows of alternate polarity. By moving alternate rows with respect to their neighbours the increase or decrease in attraction is obtained. A more fault free method of construction is achieved by using strips of permanent magnet material (22) to form the rows (10) which are then magnetised with alternating polarity (3, 4, 6, 8), each pole being separated from its neighbour by a neutral zone (24). This construction eliminates the risk of incorrect magnet assembly, for example two adjacent like poles, inherent in a design using discrete pole pieces.
Patent DE-2425638-A1 (DE)
Title: Consolidated particle boards prodn. - using low pressure preheating to improve thermal efficiency
Inventor: METS ALBERT DE
IPC: B27N3/24
Filed: 1974-05-28
Abstract: Continuous mfr. of resin bond agglomerate panels involving timber or vegetable based particles where prior to entering a conventional press comprising opposed steel belting applying compression and backed by flame heaters, the particulate mat is passed between travelling plastic films which smooth the layer of particles sufficiently to expel most of the air while subjecting the layer simultaneously to high frequency heating and to heat dissipated by stationary heat exchanger panels backing the upper and lower runs of plastic films. Steam generated within the layer remains able to permeate the layer and vent prior to the layer entering the conventional continuous press. Heat transfer to the surface of the compacted but not compressed layer of particles together with inductive heating of the core moisture allows the total system length to be reduced to about half that required by processes involving use of high load, flame heated continuous presses oly. Re-use of flame-heaters press air boosts overall thermal efficiency.
Patent DE-2426512-A1 (DE)
Title: Control cct. for electrohydraulic valve - has valve operating transistor protected by overload transistor shunting emitter resistor
Inventor: GLEIXNER FRANZ DIPL ING
IPC: H01F7/06
Filed: 1974-05-31
Abstract: The control circuit for an electrohydraulic valve has a transistor (6) actuating the valve (5) excitation coil. The transistor is coupled by its emitter over a resistor (7) to one supply pole. The resistor is shunted by a protective variable resistor formed by a second transistor (9). This transistor prevents the first transistor overloading by conducting more strongly the more the voltage drops across the emitter resistor, i.e. the greater the current through the first transistor. The second transistor base/emitter junction bridges the resistor and its collector is coupled via a diode (10) to the first transistor base. A relay switch-off circuit (11, 12) disconnects the supply from the control circuit.
Patent DE-2439049-A1 (DE)
Title: Anhyd. sodium bromide crystals pptn. from aq. soln. - at low temp. by adjusting to free hydrobromic acid content of 40 to 65 wt. percent
Inventor: JENKNER HERBERT DR
IPC: C01D3/10
Filed: 1974-08-14
Abstract: Anhyd. NaBr is obtd. at 50 degrees C by adding excess HBr to an aq. NaBr soln. and adjusting the free HBr content of the soln. to 40-65, pref. 43-49 wt. %, followed by sepd. of the ppte. from the mother liquor. The process gives a crystalline prod. and avoid the high energy consumption associated with the dehydration of the NaBr. 2H2O crystals normally pptd. in the low temp. process. The anhyd. crystals are free from small amts. of NaBr soln. or hydrated NaBr. The process can be operated with HBr gas or solns. obtd. as by-prod. in organic syntheses.
Patent DE-2441412-A1 (DE)
Title: Fire-restricting cable feedthrough system - has arbitrarily sized zinc-plated steel feedthroughs filled with fire-proof material
Inventor: VOSTELL PAUL
IPC: H02G3/04
Filed: 1974-08-29
Abstract: The fire-restricting cable feedthrough system, for electrical installations, has zinc-plated steel boxes (20, 22) passing through the fire-restricting walls between sections in the electric installation and extending well into these sections on both sides of the wall. The cables pass through these boxes in separate channels. The boxes are filled with fire-resisting material so that, if one end of the cable catches fire, it cannot burn through the box into the adjacent section. The advantage lies in the box being able to be constructed in any size and any length.
Patent DE-2441854-A1 (DE)
Title: Bulk rubbish skip - is lidless and with supporting rails for lid retaining stirrups on collector vehicle
Inventor: LENNARTZ HORST
IPC: B65F1/02
Filed: 1974-08-31
Abstract: The skip has a rectangular discharge opening and trunnions on the end walls engaged by the lifting and tilting arms of the collector vehicle, which is equipped at the sides of the loading opening with retaining stirrups and claws for swinging open a lid. The skip (1) has no lid, and at the side furthest from the loading opening has a filling opening extending for part of the skip length and height. It is also equipped, in the vertical plane in which the retaining stirrups swing, with a curved supporting rail (7) on each end wall (2, 3) on the half furthest from the loading opening, against which the stirrup claws bear.
Patent DE-2446871-A1 (DE)
Title: Rational heat pump using any phase working substance - with water and brine both suitable for connecting heat source to radiator
Inventor: EIGNER OTTO
IPC: F25B29/00
Filed: 1974-10-01
Abstract: The application stipulates that, for example, water or brine is used as the heat carrier which enters the chamber (18) at the top and leaves it at the bottom, thereby transferring the heat which it absorbed from the heat source to the outer walls of the system (8).
Patent DE-2447226-A1 (DE)
Title: Electronic delay line for producing echos and reverberations - converts analog samples into digital for stored and delayed read-out and re conversion
Inventor: DALEIDEN GERARD
IPC: H03H17/00
Filed: 1974-10-03
Abstract: The electronic delay line, for producing echos and reverberations, samples the analog LF signal periodically at 0.05 msec. intervals and converts the sample into a digital signal using an A/D converter. These digital signals are stored one after another in a memory and are read out at given delay intervals. These read-out, delayed signals are reconverted by a D/A converter into analog signals. The delay times are not fixed but are free to alter periodically to give phase vibration and phasing. The advantage of the electronic delay line lies in its avoiding the disadvantages of the bucket-brigade types.
Patent DE-2452999-A1 (DE)
Title: Water cooled cylinder head especially for diesel engines - has upper and lower cooling chambers are joined by annular gap around injector tube boring (NL110576)
Inventor: KREIL JOHANN
IPC: F02B3/06
Filed: 1974-11-08
Abstract: The water circulation speed between the lower (11) and upper (13) water cooling chambers is accelerated by the formation of an annular gap (15) between a tube protecting the body of the injector and the separation wall (10) in the cylinder head. The exhaust valves are located in a removable cage (7) for ease of replacement and are directly cooled by the lower cooling chamber with the aid of a vertical boring (16) leading from the intake union (17). The water cooling chamber below the exhaust port (6) is provided with ribs all of which run in the same direction as the water flow.
Patent DE-2455589-A1 (DE)
Title: Power amplifier has transformer with control winding - and has load winding and auxiliary winding couple to definite AC sources
Inventor: FRIEBE WOLFRAM
IPC: H03F9/00
Filed: 1974-11-23
Abstract: The power amplifier has a transformer (50) which is fitted with control, load and auxiliary windings. The total inductance of the transformer windings is independent of the reactive load and the control voltage source has the same frequency and phase as the power voltage source (52.2) that is coupled directly across the load winding (50.1). The auxiliary winding (50.2) is shunted by a capacitor and is connected over a very large ballast resistor (53) to a generator (52.1) together forming a constant current source. This latter generator has the same frequency but its current phase is displaced by 180 deg. relative to the other two frequency sources.
Patent DE-2460494-A1 (DE)
Title: Ventilation conduits for stacked material containers - struts of differing section may enclose heating or cooling pipes
Inventor: ERNST HELLMUT
IPC: C05F17/02
Filed: 1974-12-20
Abstract: A container for stacked goods requiring aeration, such as a compost silo, has a number of ventilating channels connecting to the outside atmosphere, arranged crosswise to each other on different levels. The channels may form reinforcements for the structure of the container, and may have an inverted 'V' section with an angle at the apex smaller than that of the slope of rest of the goods, os that blockages cannot occur. A simple, cheap and efficient means of ventilating any type of matl. stored in containers.
Patent DE-2461164-A1 (DE)
Title: Continuous telomerisation of water soluble acrylic cpds. - by passing through cooled tubular reactor
Inventor: WEGEMUND BERND DIPL CHEM DR
IPC: C08F2/38
Filed: 1974-12-23
Abstract: Continuous telemerisn. of water-soluble acrylic cpds. (A) involves mixing an aq. soln. with a telogen (B) and a polymerise. initiator (C) and passing through a tubular reactor kept at constant tmp. in a bath. The telomers can be used for water-treatment, conditioning of water for boilers, esp. to inhibit deposits, and for post-treatment of metal surfaces, e.g. anodised Al. PRODUCTS almost free of monomer and contg. >30 wt.% concn. of telomer are obtd. without excessive increase in temp. making control of the reaction difficult.
Patent DE-2516271-A1 (DE)
Title: Appts. for testing drive belts of sound recording and playback appts. - under variable speed and load using brake and tachogenerator
Inventor: RICHT OSKAR HUBERT
IPC: G01M13/02
Filed: 1975-04-14
Abstract: A test appratus evaluates the effects of shape and composition variation on transcription characteristics of drive belts under variable load conditions. The drive belt is mounted on two pulleys, one of which is turned by a metor to drive the belt at constant speed. The second pulley is driven by the belt and itself drives a tachogenerator which produces a speed measurement frequency, which may be divided or multiplied, according to belt speed, to produce 3150 Hertz, the best synchronisation measurement frequency. The drive motor and tachogenerator are both DC motors with AC generators on their shafts. The second pulley has an electrically actuated variable action brake enabling load variation.
Patent DE-2520460-A1 (DE)
Title: Long life thermal insulation for roofing - having coloured impregnated reinforcement layer plus mixed bitumen and polyolefin
Inventor: BREITNER ERWIN
IPC: E04D5/10
Filed: 1975-05-07
Abstract: Thermal insulation for the building industry, and particularly for roofing etc., for bonding/welding to a substrate, has a coloured carrier layer of stable polyolefins containing a reinforcement covered with an asphaltic layer consisting of a mixture of distillation bitumen and polyolefin polymers.
Patent DE-2528284-A1 (DE)
Title: Pyrazine N-oxides used in dye and plant protection agent prepn. - prepd. by reacting 1-amino 2-oximino cycloalkenes with hydrogen halide
Inventor: WEITZ HANS-MARTIN DIPL ING DR
IPC: C07D241/52
Filed: 1975-06-25
Abstract: Pyrazine N-oxide derivs. of formula (I): (where R1 is an aliphatic residue and X is halogen) are new cpds. R1 is pref. 2-10C alkylene and X is pref. Cl. (I) are useful as intermediates for dyes and plant protection agents. Phenazine 5-oxide obtd. by drhydrochlorination and subsequent dehydrogenation of 1,9-dichloro-octahydrophenazine 5-oxide has nematocidal, acaricidal, fungicidal and herbicidal activity. Dichloro-phenazine N-oxides obtainable by dehydrogenation of (I) have fungicidal and herbicidal activity. Specific cpds. (I) include 1,9-dichloro-1,2,3,4,6,7,8,9-octahydro-phenazine 5-oxide. In an example, this cpd. is prepd. by conducting HCl into a CHCl3 soln. of 1-morpholino-6-oximino-cyclohexene.
Patent DE-2533563-A1 (DE)
Title: Cine camera with trigger incorporated in hand grip - has additional pull down type control device
Inventor: WINKLER ALFRED
IPC: G03B19/18
Filed: 1975-07-26
Abstract: A cine camera with a hand grip has an activator in trigger form in the handle. This activator is used to adjust focusing, aperture etc. The handle is attached to the base of the camera. An additional handle (7) of pull-out type is provided which can be operated by the index finger of the user. It can be pushed back while the other activator is still being used since the finger is inserted in a ring of the handle (7). This arrangement enables focussing to be changed while the camera is operating.
Patent DE-2535017-A1 (DE)
Title: Portable or wheeled shopping basket - has plate on base accommodating changeable advertising placard
IPC: B62B3/14
Filed: 1975-08-06
Abstract: The portable or mobile shopping basket has lattice-work walls and base. A plate (12) is mounted on the base (10), with areas (A, B) to which advertising placards can be detachably secured (18). The portion of the plate to which the placards are not attached can be embossed or stamped with a non-removable sign (20). e.g. stove's name. It can be between 1 and 6 mm thick and of plastic, with a recess in the middle portion. The recess can be under cut, to allow better securing of the placard. The plate can be of stiff material, with a transparent sheet or cover plate secured to one side, to protect the placard.
Patent DE-2544717-A1 (DE)
Title: Wiper unit for stencil printing machine - uses a magnetically influenced wiper roller and a transporter for the ink which passes above the wiper roller
Inventor: GASSER MANFRED
IPC: B41F15/44
Filed: 1975-10-07
Abstract: The lower side (11) of the transporter (1) passes above the wiper roller (2) at a distance from it. The distance (5) between the leading lower edge (12) of the transporter and the wiper roller can be varied by means of an ink tube (6) connected to the transporter. The design is suitable for use with a rotary of flat bed stencil machine. In the former case the ink tube is located in the centre of a cylindrical stencil (3) and the transporter has its lower side (11) shaped so as to form an approx. concentric curve relative to the stencil. The difference between the two radii is somewhat greater than the diameter of the wiper roller located within the stencil above a magnetic beam (7).
Patent DE-2546147-A1 (DE)
Title: Railway level crossing roadway slab fastener - has transversely displaceable edge pieces clamping slab into web of rail
IPC: E01C9/04
Filed: 1975-10-15
Abstract: The railway level crossing incorporates a roadway slab lying between the track rails. This is held on the rail side by edge pieces fitting against the lateral profile of the rails. These edge pices (5) are movably mounted and led on the peripheral area of the roadway slab facing the rail, displaceable across the rail's longitudinal axis. There is a fixing device, or more than one, for each edge piece, for clamping the roadway slab in the track, by means of the edge pieces. There may be a threaded plunger (11) on the roadway slab side, engaging the thread of a nut (13) on the slab. The edge piece is firmly mounted at the other end of the plunger, and there is an activating zone (14) firmly joined to the plunger between the thread and the edge piece.
Patent DE-2557276-A1 (DE)
Title: Automatic current limiting cut out switch with double contact break - has contact bridge forming electrodynamic sliding contact with support
Inventor: ACKERMANN LOTHAR DIPL ING
IPC: H01H71/24
Filed: 1975-12-19
Abstract: The automatic current limiting cut-out switch has a double contact breaking system. The movable bridging contact is coupled to the switching lock via the contact print. The switching contact bridge forms an electrodynamic sliding contact with the support of the fixed contact. An electromagnetic armature is used to actuate the bridging contact independently of the switch locking device. The switching bridge contact (1) is linked to a toggle lever. The toggle lever rod consists of two sections (5) interlinked by the contact power spring (9) and is also fitted with a strap (4). This is used to carry the toggle lever beyond the dead centre.
Patent DE-2602855-A1 (DE)
Title: Temp. control system with electronically operated thermostat - uses generator of binary coded signal compared with reference producing error
Inventor: PALMIERI JOSEPH MICHAEL
IPC: G05B21/02
Filed: 1976-01-27
Abstract: Temp. control system which uses a thermostat to generate a control signal from a unit with a varying temperature. Thermostat operates electronically is very accurate and can be installed in a space to be kept at an accurate temp. and produces a signal which is compared with a reference. It consists mainly of a digital unit with a temp. signal generator generating a binary coded decimal number which represents the ambient temp. There is a reference signal generator which also produces a binary coded decimal number. The two binary codes are compared in a comparator and produce an error signal in binary code. The signals are produced by an oscillator with a variable frequency. The variation is produced by a temp. sensor. The digital signals are produced by counters which are fed from the output of the oscillator.
Patent DE-2607161-A1 (DE)
Title: High penetration stapler with bending resistance - has ram with concave guide grooves for staples
Inventor: MUELLER HANS
IPC: B27F7/19
Filed: 1976-02-21
Abstract: The stapler is tough enough to cope with multiple or hard sheets, without staples bending and jamming the stapler. To prevent bending which mostly happens in the leg of the staple, the present design uses a ram, the lower edge of which is fitted with a groove to partly accommodate the thickness of the staple. In addition, the groove on the ram edge is concavely-shaped at the sides and follows the radius at which the staple legs are bent. The part providing the sliding guide for the staple is also fitted with a groove according to the thickness of the staple.