baber/WOPTO huggingface dataset:
Patent DE-2238488-A1 (DE)
Title: Oven moisture content stabilizer - dispenses water vapour to compensate losses
Inventor: LEPPER WILHELM DR ING
IPC: H01L29/00
Filed: 1972-08-04
Abstract: Food in ovens of domestic cookers can be kept juicy by introducing water vapour from an extraneous source or from a container placed inside the oven. The moisture content of the air is thereby kept at such a level that the loss of moisture from the food is eliminated. The water vapour can be introduced intermittently or continuously its rate can be controlled as a function of the moisture in the atmos. of the oven.
Patent DE-2257922-A1 (DE)
Title: Operating blast furnaces - using reformed gases to avoid gas waste and reduce coke, oxygen etc. consumption
Inventor: WENZEL WERNER PROF DR ING
IPC: C21B5/06
Filed: 1972-11-25
Abstract: Process comprises regenerating blast furnace gas in a state in which it is CO and H enriched, and introducing a N-free blowing gas into the hearth which is at least partly composed of regenerated blast furnace gas. The amt. of regenerated gas included in the blowing gas is enough to produce sufficient CO and H in the hearth to give a central combustion temp. of 2000 degrees C while also providing an excess of CO and H in the hearth which flows into the shaft to give the required reaction.
Patent DE-2306773-A1 (DE)
Title: Crystalline sodium sulphate prodn - by multistage evaporation
Inventor: WINKLER ROBERT
IPC: B60T17/22
Filed: 1973-02-12
Abstract: Anhydrous Na2SO4 crystals and/or Glauber salt is made simply and economically by evapn. of Na2SO4 soln. The soln. is initially directly or indirectly cooled to 32 degrees C (i.e. to the region where solubility rises with increasing temp.) until the solubility is less than that to be encounted at the highest temp. to be used subsequently. The soln. is then heated in several stages to the inverse solubility region (i.e. solubility decreases with increasing temp.) and evapd. No build-up of scale occurs on the heat exchanger surfaces during the process.
Patent DE-2307752-A1 (DE)
Title: Transparent, opal and crystalline glass compsn. - contg. silica, lime alumina, sodium oxide and magnesia, opt iron oxide, sulphide ions and other oxides
Inventor: BONDAREW KONSTANTIN T
IPC: C03C3/087
Filed: 1973-02-16
Abstract: Glass contg. by wt. 71-80% SiO2, 15-30% CaO, 1-4.5% Al2O3, 0.5-5% Na2O and 2-8% MgO can be used for prodn. of opt. coloured opal glass, colourless transparent and crystalline glass. Pref. glass may also contain 0.2-1% Fe2O3 and S= and 0.03-3% of no more than 3 out of CoO, MnO2, Cr2O3, NiO and FeO. Uses include plate- and ornamental glass for domestic and industrial buildings and agriculture.
Patent DE-2329237-A1 (DE)
Title: Electrostatic transverse fibre conveyor - aligning fibres parallel to one another by feed rollers disposed adjacent electrodes
Inventor: LANGER ROLF DIPL ING
IPC: D01H4/28
Filed: 1973-06-08
Abstract: Electrostatic transverse fibre conveyor associated with a yarn spinning machine to which the fibres are supplied in parallel disposition to produce yarns of uniform quality has the parallel alignment promoted by providing a pair of fibre feed rollers closely adjacent the electrostatic electrodes.
Patent DE-2351163-A1 (DE)
Title: Hot-pressed moulding of silicon nitride and or silicon oxynitride - contg. glass ceramic binder phase
Inventor: FICKEL ALBRECHT DIPL-ING
IPC: C04B35/593
Filed: 1973-10-11
Abstract: Moulding articles of hot-presses Si3N4 and/or Si2ON2 contg. a binder-phase of glass compsn converted to a glass ceramic by subsequent heat-treatment are pref. prepd by mixing Si3N4 with the glass compsn as pressing auxiliary hot-pressing, e.g. at 1750 degrees C, followed by heat-treatment. Strength and hardness of mouldings contg. glass ceramic phase are improved. Hot pressing assistants are oxided e.g. 0.1-35 (0.5-10)% SiO2 Al2O3, TiO2, ZrO2, ZnO, K2O Na2O Mg MgO, CaO and/or Li2O.
Patent DE-2356522-A1 (DE)
Title: Electromagnetic clutch for peripheral and similar devices - starts and stops drive shaft without appreciable delay
Inventor: PAETEL HORST
IPC: G06K13/077
Filed: 1973-11-13
Abstract: The clutch is fitted to the end of the drive shaft of a paper or magnetic tape transport, punched card transport etc. where it is desirable to start and stop the shaft repeatedly. The drive pulley is mounted on the shaft trough a bearing and the electromagnetic clutch mounted round the shaft adjacent to it. A two part driven plate is located between them fixed to the drive shaft by a pin so that the two parts may move into contact with the drive pulley or the clutch. Two tension springs hold the driven plate against friction material on the continuously driven drive pulley so that the drive shaft rotates with it. When the electromagnet is energised the driven plate is pulled against a brake band on the clutch so that the shaft is stopped.
Patent DE-2359649-A1 (DE)
Title: Aircraft cargo lashing-down system - has ropes with hooks along carrying vehicle sidewalls retractable when not in use
Inventor: KRAMER VOLKER
IPC: B60P7/08
Filed: 1973-11-30
Abstract: The system is particularly for securing tracked vehicles in aircraft, and comprises lashing ropes equipped with hooks running along the sidewalls of the transporting vehicle. These hooks engage with mating hooks on the vehicle transported, and in the released position the ropes take up an elastic position along the sidewalls. The ropes attached to the floor can be coupled at their free ends to rubber ones attached to the roof or sidewalls. Ropes can be arranged along the vehicle sides and anchored to the roof or tracks of it. The system allows quick and safe anchoring and release of the vehicle by its crew, and avoids the ropes getting tangled in the tracks when driving out.
Patent DE-2414432-A1 (DE)
Title: Food serving apparatus with hot and cold compartments - uses water from refrigerating evaporator and condenser for steam-heating hot food
IPC: F25D31/00
Filed: 1974-03-26
Abstract: The food serving apparatus comprises a cold zone for keeping food cols and a hot zone for keeping food hot wherein the thaw water from the oversized evaporator which together with a condenser is provided for the refrigerating zone is supplied partly to the air for the refrigerating zone and partly to a collecting dish in which it is evaporated by the heat of the condenser and supplied to the air for the heating zone. This is achieved in that the corresponding proportion of dew water is vaporised by the condenser so that the steam produced is passed to the heating zone where it is used to heat up the food so that the latter does not dry out unduly. Infra red rays and other complicated heating devices are no longer necessary.
Patent DE-2420708-A1 (DE)
Title: Shifting and locking system for filter plates - uses moving pawl and leaf spring catch elements on filter plates
Inventor: BUSSE OSWALD DR ING
IPC: B01D25/172
Filed: 1973-08-06
Abstract: Shifting and locking system for horizontally movable filter plates in a press. vessel comprises a driven shifting unit having a pawl which engages a leaf spring catch element on each filter plate. A leaf spring locking member carried by adjacent filter plates is retained in its locked posn. by the catch element. When the catch element is engaged by the pawl it is moved sufficiently to unlock the locking member and then abuts a stop, so that the motive power from the pawl is transmitted to the filter plate. Abrupt movement of the filter plate is avoided since the leaf spring catch element permits the speed of which the filter plate is moved to be gradually increased until it reaches the speed of the shifting unit.
Patent DE-2431507-A1 (DE)
Title: Handling device for thin semiconductor chips - has two radial jaws for chip handling and moved by cam disc
Inventor: BRAIDT AUGUST ING GRAD
IPC: C23C14/50
Filed: 1974-07-01
Abstract: The handling device is intended for fragile, thin semiconductor chips with delicate surfaces, has a hollow, pot-shaped, cylindrical housing (2) to hold the semiconductor chip (1). The chip is positioned by means of three jaws (7) operated simultaneously and moved radially by rotating a knurled knob (9) projecting from the housing and coaxial with the circular housing axis. The knob shaft has a cam disc (10) attached to it, that acts on spring-loaded radial bolts (11) fixed one to each jaw. The cam drive has three curved projections corresponding to each jaw. The handling device centres and positions the semiconductor chip for further processing.
Patent DE-2431922-A1 (DE)
Title: Folded inner tube for tyre - with double folds to reduce width for easy fitting into tyre
Inventor: WITTNEBEN HERMANN DIPL ING
IPC: B60C5/04
Filed: 1974-07-03
Abstract: The inner tube is made with formed folds so that it can be stored in a minimum of space. The folds are double so that the flat package has four thicknesses of tube wall. This reduces the width of the package to half the conventional flat-package and enables the folded tube to be inserted under the tyre without snagging the edges of the tyre. The folds can also be produced by folding in the tube halfway from each side, and are quickly unrolled as the tube is inflated with the tyre in position.
Patent DE-2444541-A1 (DE)
Title: Thick, self-supporting films of porous, structured alumina - obtd. by high voltage anodic oxidn. and with many uses
Inventor: ROSE SELWYN H
IPC: C25D17/00
Filed: 1974-09-18
Abstract: An aluminium workpiece is made the anode in an oxalic acid electrolyte where the anode is attacked by using up to 650V between the anode and the cathode at is not >25 degrees C after which the portion of the anode not attacked is removed from the layer of Al2O3. The electrolyte can be circulated through a cooler and pores up to 0.3 mu dia. obtd. using a max. electrolyte temp. of 0 degrees C alternatively, pores up to 0.6 mu dia. can be obtd. in an electrolyte at max. 25 degrees C. The alumina layer obtd. can be up to 0.025" thick and can be impregnated and/or provided with a substrate. Used as radar domes or covers, filters, membranes, catalyst carriers, molecular sieves for large organic molecules or polymers, or for the sepn. of biological samples from solns. Pores of varying size and/or various diameters can be obtd. The anodes may be shaped so shaped films of alumina are obtd.
Patent DE-2447558-A1 (DE)
Title: Calendar with intermediate divisions - perforated daily, weekly or monthly and suitable for attachment to desk fitted clocks
Inventor: EPPLER WILHELM
IPC: B42D5/06
Filed: 1974-10-05
Abstract: Calendar consisting of day, week or month sheets with or without separate support element. The sheets or the support element are fitted with a recess which permits a connection with a clock mounted on the calendar support. The recess to make the connection with the time indicator is made by slots, flaps or pre-punched fittings which correspond with the measurements of the time indicator housing. The time sections per sheet are perforated and thus made detachable and the numerical sequence of the time sections per sheet runs from the bottom to the top.
Patent DE-2449613-A1 (DE)
Title: Humidity of tobacco measuring device - has a support for the tobacco to which two electrodes are allocated to determine conductivity
Inventor: THIELE WILLI
IPC: A24B9/00
Filed: 1974-10-18
Abstract: The two electrodes form a measurement capacitor which is included in an oscillating circuit, and there are means for the frequency control; of this circuit an instrument measures a parameter of the oscillating circuit at resonance which is a function of the humidity of the tobacco, and the electrodes are allocated to the tobacco limiting surfaces, as in (21, 46, 386). When a conveyor (2) is used as a support for the tobacco (4), means for compressing the tobacco are used and may consist of a fork (36), whose prongs form the electrodes of the capacitor (33).
Patent DE-2455572-A1 (DE)
Title: Mobile hop picking machine - has U-shape profile beam with at least two parallel chains feeding hop vines to plucking drums
Inventor: LIEPOLD ADOLF ING GRAD
IPC: A01D46/02
Filed: 1974-11-23
Abstract: A mobile hop picking machine having a device for throughput of hop vines by means of which the vines are released from the support wires end fed into the hop leaf plucking from the support wires end fed into the hop leaf motion of the mobile machine, has, in an addition to P 2360 989 has the beam of the vine (4) input device which gathers the vines constructed such that it extends in a curved arc beyond the platform attached to the point of the hop gathering machine. The vines are then fed through the plucking drums. The beam is in the form of a U shape profile batten open at the top in which at least two chains used to pull the hop vines through the picking drums are situated parallel to and at a slight separation from one another.
Patent DE-2501510-A1 (DE)
Title: Winding for transformers and inductors - has several parallel windings of strips standing on edge in double coil coupling
Inventor: PAIL WERNER
IPC: H01F27/28
Filed: 1975-01-16
Abstract: The winding consists of two coils, with connections with individual conductors uniformly distributed over the inner or outer periphery of the winding. The ends of individual conductors of the two coils are axially bent in radial channels, formed by the two coils, and are brought over a shorter arc to the winding output end, irrespective of the winding sense. The individual conductors of the upper and lower coil are laid alternately next to each other. Preferably a conductor stack, formed from the adjacent individual conductors, is aligned with adjacent coil parts. The axial spacing of the stack from adjacent coils equals approx. the coil spacing proper.
Patent DE-2504062-A1 (DE)
Title: Calcium and magnesium carbonates suitable for paper mfr - made by feeding carbon dioxide into aq suspension of calcined dolomite
Inventor: SCHULTZE WERNER DR
IPC: C01F11/18
Filed: 1975-01-31
Abstract: Process for mfg. carbonates of calcium and/or magnesium, the novelty being that by heating to 1000-1100 degrees C, dolomite is converted into a mixt. of calcium and magnesium oxides which are suspended in water using 1 pt. wt. of oxides and 20 pts. wt. water and the carbon dioxide is introduced into the suspension to convert the hydroxides into the corresponding carbonates. The initial starting material is pref. natural dolomite calcined in a rotary drum furnace, and the gas fed into the suspension is pref. CO2 or a mixt. of CO2 and N2, esp. the exhaust gas from the drum furnace. Before or during the slaking of the oxides, additional amounts of Ca or Mg oxide, hydroxide or carbonate may be added. Used e.g. for mfr. of basic calcium-magnesium carbonate as a filler or coating for mfg. glossy papers, where the carbonate has a degree of whiteness above 95%.
Patent DE-2513240-A1 (DE)
Title: Guide system for sorting of coins of various denominations - has inclined track with preset stops for different coins and has cord loop driven to ensure coin motion
Inventor: GROSS ERWIN
IPC: G07D3/12
Filed: 1975-03-25
Abstract: A sorting unit allows coins of varying denominations to be supplied from a container onto a guide rail with various pick-off points to counting units. A belt (2) driven disc (3) with cut out sections (4) around the periphery collects coins from a container and directs them onto an inclined guide rail (7). Profile guides (9) are located along the length of the guide rail and are set to retain coins of a specific denomination. The various denominations are discharged to counting units. In order to avoid problems associated with sticky or wet coins, a double cord loop inset into the guide plate provides the necessary friction drive to ensure movement along the track.
Patent DE-2533618-A1 (DE)
Title: Motor vehicle wheel bearing - has taper roller bearings with tapered outer surfaces pressed into different taper bores
Inventor: HOFMANN HEINRICH ING GRAD
IPC: F16C33/60
Filed: 1975-07-26
Abstract: The motor vehicle wheel bearing comprises a hub with two roller bearings and sealing washers, assembled together in a unit ready for installation. The outer surfaces of the two taper roller bearings races are themselves tapered, and are pressed into two bores (1") converging from the ends of the hub (1). The relative amount of taper on these outer surfaces and in the associated sections of the bore in the hub is sufficiently small to produce a self-locking effect. The amount of bearing clearance is set by the depth by which the outer races (2') are pressed home in the axial direction.
Patent DE-2535809-A1 (DE)
Title: Cyclic 5C hydrocarbons from n-pentane feeds - by contact with hydrogen on a platinum-silica catalyst
Inventor: BENESI HANS ARPAD
IPC: C07C13/10
Filed: 1975-08-11
Abstract: Cyclic C5 hydrocarbons are produced from a C5 feed contg. n-pentane by contacting the feed and an H2-rich gas with a catalyst consisting mainly Pt on SiO2 at a temp. of 450-600 degrees C (pref. 500-575 degrees C), a pressure of 0.068-3.4 (pref. 0.136-204) atm and a whsv of 0.1-10 (pref. 0.5-4). The process produces cyclopentene (when the Pt content of the catalyst is low, e.g. =0.6 wt. %) or a mixt. of cyclopentene and cyclopentadiene (with higher Pt contents); the product can be hydrogenated to cyclopentane for use as a high-octane gasoline blending stock (RON clear 105), or the cyclopentene and/or cyclopentadiene can be used as starting materials for the prodn. of elastomers, high-energy fuels, insecticides, etc. The catalysts give higher conversions and/or selectivities than conventional reforming catalysts contg. Pt and halogen.
Patent DE-2541123-A1 (DE)
Title: Mounting for machine tool cutter - has three parts locking together with spigots and threaded connections
Inventor: KOCH BENNO
IPC: B23Q1/70
Filed: 1975-09-15
Abstract: The cutter mounting arrangement consists of a first interchangeable part with fixing cone, a second part and an interchangeable third part on which the cutter is mounted and which is mounted to the second part. The first conical part is hollow and has a large spigot bore in its end. A socket head screw is held captive in the bore of this first part by a ring. The screw fits in a threaded hole in the centre of a spigot on the second part. This second part also has a large spigot bore and a captive socket screw. This screw engages with a spigot on the third part. The three parts are prevented from rotating relative to one another by axial pins which are mounted in the mounting faces.
Patent DE-2541845-A1 (DE)
Title: Plastics blow moulding system - with mould closing velocity increased in second clamping stage
Inventor: HAGEN REINOLD DR
IPC: B29C49/50
Filed: 1975-09-19
Abstract: Hollow articles are produced by blow moulding from a thermoplastic material with a program control for the closing motion of the mould halves. After a first phase of the clamping operation of the moulds around the parison, the closing velocity is increased to an optimum for the formation of a welded seam. The velocity change can be effected as a function of time, path or clamping pressures. This guarantees the completion of a satisfactory welded seam and a thin enough joint of waste to hollow article for easy removal. The equipment used is simple and can be readily attached to existing plant.
Patent DE-2543543-A1 (DE)
Title: Compsn. for determining degree of oxidn. of fats - contains alcoholic base and redox indicator
Inventor: MEYER HORST
IPC: G01N31/22
Filed: 1975-09-30
Abstract: Compsn. for colourimetric determination contains an alcoholic base, esp. KOH, and a redox indicator. The indicator may be Bromophenol blue, (I), Thymol blue, Xylenol orange, Bromocresol purple, Methylene violet, (colour index no 52041); Methylene green (colour index no 52020) or Patent blue (colour index no 42051). Compsn. is used for testing freshness of frying fats. Used also for fat contg. foods. Test is quick, simple and accurate. In an example, 6 drops 25% KOH soln. and 1 ml molten fat were added, with shaking, to 3 ml 4:1- n-propanol/benzyl alcohol mixt. 0.05 ml of a 0.1% aq soln. of (I) was added drop by drop, with shaking. After 2 min, colour obtd. was compared with a calibrated colour scale.
Patent DE-2546335-A1 (DE)
Title: Automatic measurement of characteristics of rolled plate - uses surface measurement and computer to calculate three descriptive parameters
Inventor: WILMOTTE STEPHANE
IPC: B21B38/04
Filed: 1975-10-16
Abstract: Automatic measurement of characteristics of transverse profile of hot-rolled plate is to determine suitability of plate for subsequent cold-rolling stage, and to permit necessary corrective measures to be taken at the hot rolling stage. The method consists of measuring the transverse profile of the plate and from these measurements calculating three parameters which describe and quantify the suitability of the plate. The measurements are taken using a suitable profile measuring device and a computer is used to calculate the parameters. Necessary devices to move the measuring head and to indicate its position, and to synchronise the stage of the procedure are included in the machine.
Patent DE-2552458-A1 (DE)
Title: Vertically sliding window safety lock - prevents inadvertent drop of upper window by using enclosed rack
Inventor: WOERNER HANS
IPC: E05C17/60
Filed: 1975-11-22
Abstract: The vertically sliding window has one fixed frame and two sliding panels connected with ropes. The fixed frame has a blocking mechanism with a horizontally moving locking bolt for limiting travel of a sliding panel. The door mechanism is designed to prevent injuries due to inadvertently falling upper window panels. The blocking arrangement (14) has a rack (17) which engages with the lock opening (16c) due to pressure of spring (18). A key is provided for pushing the rack against the spring. The rack is completely enclosed so that it cannot be touched by hand for inadvertent locking or unlocking.
Patent DE-2559615-A1 (DE)
Title: Tube for making compacted concrete piles - has piston for intermittent compression of air bolster on concrete
Inventor: MATHIEU HANS
IPC: E02D5/42
Filed: 1975-11-07
Abstract: The pile is made from concrete compacted in a tube driven into ground by the driving ram. This tube is filled with compacted concrete and is loaded with force acting in the extraction direction of the tube. An air bolster is formed for compacting the concrete column in the tube. No compressed air is supplied to form the air bolster. This eliminates the need for compressed air plants. Reliable support on extraction of the tube is ensured, without danger of the tube shooting out of the borehole. The air bolster is intermittently compressed and a blow is given after each compression of the air bolster to the driving tube. This blow is given in the extraction direction. The inner face of the tube (2) is given in the extraction direction. The inner face of the tube (2) has a groove (23) for accommodating a ring (28) acting as a stop. An axially moving impact piston (29) is sealed within the tube (2) below the stop rings.
Patent DE-2605490-A1 (DE)
Title: High power HV pulse generator - is for generation of HV rectangular pulse with rising and falling times in nanosecond range
Inventor: HAGELWEIDE BERND
IPC: H03K5/02
Filed: 1976-02-12
Abstract: The high voltage pulse generator produces pulses which have variable output amplitude, pulse width and spacing for Q-switched pulse ruby lasers. A pulse amplifier (1) can be activated by a pretriggered unit (3) before the pulse train is applied. It is reset to its 'stand-by' state after the pulse train end. The circuit elements in a typical arrangement are a transistor amplifier (1), tube amplifier (2), pre-trigger group (3) and network components (5,6,7) for low voltage high voltage and negative low voltage elements respectively. The pulse generator is suitable for the generation of light pulses of variable frequency from 1 kHz to 1 MHz.