baber/WOPTO huggingface dataset:
Patent DE-4132213-A1 (DE)
Inventor: GEIGER FRIEDRICH DIPL ING
IPC: D06F67/10
Filed: 1991-09-27
Abstract: A laundry mangles has at least one mangling roller (10) held in a working position inside a heatable trough (20) by at least one carrying arm (12). The mangle roller (10) and the trough (20) are held in relative movable positions by at least one adjusting member, delimiting together the inlet and outlet sides of a passage for laundry pieces (22). The adjusting member allows a force to be exerted on the mangling roller (10) and/or trough (20) that counteracts the frictional force generated during operation of the mangle, so that a constant or increasing ironing pressure towards the outlet side is set. The frictional force (R) generated during mangling is thus compensated, so that a gentle, wear-free mangling process is achieved. In addition, the mangling capacity is increased, compared with known mangles.
Patent DE-4133425-A1 (DE)
Title: Parallel connected AC mains load monitoring and controlling - having mains frequency driven counters controlling individual load switches in timed sequence enabling central control and fault location
Inventor: SZARVAS OSKAR DIPL ING
IPC: H02J13/00
Filed: 1991-10-09
Abstract: The method of monitoring/controlling an optional number of parallel connected AC (R,O) loads (10,12,14) from a central controller (22) involves allocating an individual time reference (t, to, tn) to each load wrt a time datum (to), based on the number of elapsed mains (RO) cycles. This determines the switching sequence of each load in turn via counters and switches (11,13,15). The total system demand is measured by a current transformer (24) for comparison with a series of stored norms to enable a positive indication of load identity. The onset of a fault or other anomalous condition promotes tripping by a circuit breaker (28). USE/ADVANTAGE - Provides indication of abnormal network condition for both switch-on and switch-off sequences within preset tolerance band by simple/reliable method. Does not require additional equipment based on superimposed and modulated search signals.
Patent DE-4139245-A1 (DE)
Title: Small flat microwave slot aerial - has sec. transmitter structure of alternate dielectric and conductive layers
Inventor: RICHTER EKKEHARD DR ING
IPC: H01Q21/24
Filed: 1991-11-26
Abstract: Microwave slot aerials with various layered prim. transmitter configurations are claimed, in which the transmitter layer structures comprise alternate dielectric and conductive layer structures, the dielectric layer structure being a layer of homogenous dielectric material (mixt.) or various partial layers of one or more different dielectrics or their mixts. The dielectric consists e.g, of one or more of (a) solid dielectrics such as (glass fibre-reinforced) PTFE, polystyrene, (glass fibre-reinforced) epoxy resin and other plastics, ferromagnetic materials, ceramics, quartz glass and other glasses; (b) foams such as polyethylene foam, polypropylene foam, polystyrene foam and polyurethane foam; and (c) gases such as air and N2. USE/ADVANTAGE - The aerials may be flat satellite, directional radio and aircaft aerials operating in the GHz range, heavy duty C and D- mains aerials and D-sequence mains aerials operating in the 1800 MHz range. They have smaller area, are simpler to assemble and are less expensive than conventional reflectors, are inconspicuous when assembled vertially, are simple, portable and integratable in receivers when used with transmitters of high power satellites and avoid the drawbacks of the usual stationary aerials of C- and D-mains and D-sequence mains.
Patent DE-4139479-A1 (DE)
Title: Relief printing material with photocured barrier coat - between primed base and photosensitive resin layer to increase resistance to ink and washing oil
Inventor: OSAKO AKITADA
IPC: G03F7/09
Filed: 1991-11-29
Abstract: In relief printing material having a base material (I) treated with adhesive and laminated with a photosensitive resin layer (II), the novelty is that a sepg. layer (III) with a thickness of 3 microns to less than 100 microns, which is cured when exposed to light, is used between (I) and (II). Pref. (III) is 5-50 microns thick and contains a polymeric binder (IV), a photopolymerisable unsatd. cpd. (V) and a photopolymerisation initiator (VI). Pref. (IV) is an alcohol-soluble polyamide, polyether-polyamide-urea, polyether-urethane resin, polyether-ester-amide, (partly) hydrolysed polyvinyl acetate, methyl vinyl ether/maleic anhydride copolymer (derivs.) or styrene/maleic anhydride copolymer (derivs.); (V) is a polyol (meth)acrylate, polyglycidyl ether (meth)acrylic acid adduct, polybasic carboxylic acid glycidyl (meth)acrylate adduct or polyamine glycidyl (meth)acrylate adduct; and (VI) is benzoin (ethers), benzyl ketals, benzophenones, anthraquinones or diacetyls. ADVANTAGE - (III), which is a barrier layer, has good resistance to printing inks and washing oils.
Patent DE-4203448-A1 (DE)
Title: Belt tensioning device for the drive of secondary assemblies in engines - has gap in vibration dampener between piston and friction body
Inventor: MAYER ERNST DIPL ING DR
IPC: F16H7/08
Filed: 1992-02-07
Abstract: At least one friction-reducing element is inserted between the parallel conical faces of the vibration dampener (11). This element can be endless worm springs (17) or standard O-rings of a polymer material. A conical ring could be used whose surfaces are designed as adhesive faces for fixing the ring on the adjoining components. The friction body (12) can be a ring having a radial full-length slit at least one circumferential point. The ring adjoins the inner faces of the cylinder by a cylindrical sleeve face. The two conical faces of the vibration dampener can be formed on inner and outer conical sleeves (15,16). ADVANTAGE - The friction force dampening the vibration can be different in each direction of movement.
Patent DE-4207872-A1 (DE)
Title: Thermal insulation for sides and roof of refrigerated lorry - comprises sandwich construction panels with inner, e.g. polystyrene layer, polystyrene foam core and outer skin formed by free expansion of core
Inventor: KERSTNER RALPH
IPC: B60P3/20
Filed: 1992-03-12
Abstract: The thermal insulation of refrigerated lorries is sandwich construction material round the sides and roof; it consists of an inner layer, polyurethane foam core, and the dense skin formed in making the foam and which has a grained finish as the resin is allowed to foam unrestrictedly. The foam is pref. free from fluorchlorhydrocarbons and is a closed-cell type. The inner skin is pref. fully recycleable polystyrene. The cross-section of the vehicle body the outermost covering (1) of metal. The innermost side (2) is the outer layer of the sandwich and is e.g. polystyrene. The thermal insulation of the sides and roof is the foam which is produced by unrestricted expansion of a regulated quantity for the required thickness. Moreover this expansion forms the dense leather-like surface skin (4). The transition from side to roof has the inner skin (2) overlapping and the interfaces (6) of the two layers of foam lie directly against each other. The overlap is ultrasonically welded, using a suitably shaped sonotrode so that the outer edge join is tapered off. ADVANTAGE - The insulation sheets are large, stable and have an inner layer shaped to suit the vehicle. The thickness of the foam can be made as required and it has a sealed leather-like skin. The sheets can be made virtually joint-free for the sides and roof. The narrow space between the foam skin and the inner face of the exterior wall contains struts for the wall and its air gap provides insulation also. The roof and wall insulations are ultra-sonically welded together.
Patent DE-4208857-A1 (DE)
Inventor: HEIDEMANN ROLF DR
IPC: H04B10/572
Filed: 1992-03-19
Abstract: Optical fibre amplifiers (3), such as those used in optical information transmission systems, for example those with Er<3+>-doped optical waveguides, are strongly dependent on wavelength amplification in the wavelength range concerned. According to the invention, the emission wavelength ( lambda 0) of the semiconductor laser (1) of an optical transmission system is adjusted by a control device provided in the optical transmitter (20) to the wavelength at which the optical fibre amplifiers (3) produce maximum amplification. The control device finds the optimum wavelength by evaluating the light absorption of an optical waveguide reference piece (9) whose maximum lies on the same wavelength as that at which the optical fibre amplifier (3) attains its maximum amplification, and by adjusting the emission wavelength of the laser (1) to the wavelength of the maximum absorption in the optical waveguide reference piece (9). <IMAGE>
Patent DE-4209892-A1 (DE)
Inventor: ZELLER ROBERT L
IPC: C01G31/00
Filed: 1992-03-26
Abstract: A method of removing soluble vanadium from an aqueous stream e.g. containing sodium chromate and/or sodium bichromate comprises contacting the stream with a water-insoluble trivalent chromium compound e.g. Cr2O3xH2O or CrOOH. The process is especially useful in removing vanadium from a recycled concentrated sodium bichromate liquor to prevent the buildup of vanadium therein.
Patent DE-4212093-A1 (DE)
Title: Noise barrier made with e.g. recycled plastics and erected on ground - consists of series of terrace-like layer so plant mouldings locking onto connecting planks underneath and diminishing pyramidally
Inventor: RYDMANN THEO
IPC: E01F8/02
Filed: 1992-04-10
Abstract: Plastic noise barrier has a number of plant mouldings held together horizontally by support members and arranged terrace-fashion one on top of another, so that they form a space which attenuates upwards and holds a substrate infill. The plant mouldings are pot-shaped with U-sides, and the horizontal members are connecting planks. The prod. is a stack of plant mouldings (1) placed on successive connecting planks (3) laid on levelled ground. Each such plant has end features which lock on to the top of the plank beneath, except the bottom-most plank which rests on the ground. The mouldings (1) in one layer are laid side by side with lugs and recesses in the sides to fit together and remain in position. The top rims of adjacent plant mouldings (1) fit together into a corresp. slot on the underside of the plank above. The ends of the planks rise somewhat so as the hold the moudlings also. USE/ADVANTAGE - The construction is free-standing. It consists of only a few easily handled parts. It is assembled without metallic binding straps, etc.
Patent DE-4215059-A1 (DE)
Title: Guide for hank of tobacco strands in hanking machine - has limiting guides set parallel to running direction of belt and limit movement of belt in transverse direction
Inventor: QUARELLA GUIDO
IPC: A24C5/18
Filed: 1992-05-07
Abstract: Each side of the hank conveyor (2) are guides (39,41) which limit the transverse movement of the belt. These guides are set parallel to the running direction (14) of the belt and stretch along the whole length of the belt. The distance between the limiting guides is the same as the width of the belt plus a predetermined tolerance. The faces of the limiting guides may be interrupted at least once along their length so that a guide body may be inserted. USE/ADVANTAGE - For use in the tobacco industry, for cigarette making machines. Produces better quality products.
Patent DE-4221222-A1 (DE)
Title: Vacuum suction device for holding work objects - consists of support panel for objects perforated by vertical holes surrounded by sealing strip with another sealing strip on its underside
Inventor: KRUMME NORBERT
IPC: B25B11/00
Filed: 1992-06-27
Abstract: A base plate (1) with suction openings (2) connected to a vacuum system can be closed by flush stoppers (3). Plates (7) on which works objects are laid have vertical holes (8) from the underside right through to the upper surface and there is a seal (10) surrounding these holes on the underside and another similar seal (11) surrounding the holes on the upper surface. There are also a number of blind holes (6) drilled in the surface of the base plate, and corresponding ones are drilled in the underside of the upper plates. Loose dowel pins (9) fit in these blind holes to ensure there is no lateral movement between upper and base plates. USE/ADVANTAGE - Vacuum suction device for holding work objects facilitates processing whole object including its underside.
Patent DE-4222049-A1 (DE)
Title: Locking device for compartmented flexible vessel - has halves forming knives offset at right angles to surface forming scissors cutting it open when pressed together
Inventor: FISCHER ERNST
IPC: B65D75/60
Filed: 1992-07-04
Abstract: The container (10) is divided by sealing strips (34) into compartments (14,16) for different liquids. The device (12) may be situated at the thin-walled connecting section (22). One or both halves (18,20) form knives (28) offset at right angles to the wall surface and act as scissors cutting the wall through when pressed together. The dimension of the device in the plane parallel to that of the knives and at right angles to their edges (28) is less than that of the liquid-filled compartments adjacent to the device. The knife edges can be close together, and they can be integral with the wall (22). USE/ADVANTAGE - Locking device for compartmented flexible vessel is easy to use and requires little effort.
Patent DE-4226875-A1 (DE)
Title: Water heater with burner-activated heat exchanger - has rectangular water pipes clad on either side with corrugated metal sheets which provide channels for exhaust gas
Inventor: NUNN ALBRECHT
IPC: F28F1/04
Filed: 1992-08-11
Abstract: The water heater has a burner-activated heat exchanger to heat rows of rectangular water pipes (2). Each pipe is clad in corrugated metal sheets (4) which are either soldered or welded to the pipes (2). The corrugations, which provide channels (6) for the exhaust gas, are at four to six millimetres centres and are one to two point five millimetres deep. The corrugated sheets (4) are set back on the gas inflow side from the pipes (2) by a minimum of twenty per cent of the height of the pipes (2). USE/ADVANTAGE - Extensive use is made of the heat in the exhaust gas of the combustion water heater.
Patent DE-4234447-A1 (DE)
Title: Recycling of light bulbs which contain mercury@ - mercury@/zinc@ amalgam from pulverised bulbs adhering to rotating zinc drum under electrolyte spray is removed by conversion to copper@ or aluminium@ amalgam
Inventor: SCHWIERZKE RAINER
IPC: H01J9/50
Filed: 1992-10-13
Abstract: Novel procedure for recycling light bulbs containing mercury makes use of an amalgam process. Pref., the procedure is carried out in a sealed chamber (3) so that the escape of mercury vapour is prevented. The bulbs enter the chamber via an airlock (1) and are pulverised (2) and then passed (4) through an inclined (7) drum (5) which rotates about an approximately horizontal axis (6) and has an internal zinc surface. An electrolyte - e.g. 1-2% HCl or NaOH solution - is sprayed continuously into the drum. The mercury in the pulverised material adheres to the inner surface in the drum, where a mercury/zinc amalgam is formed. In separate second treatment stage, a metallic powder - e.g. copper or aluminium - is passed through the drum under the application of an electrolyte. The mercury separates from the zinc and forms and amalgam with the metal of the power, and this amalgam (15) passes out of the drum and can later be separated by an electrolytic process. USE/ADVANTAGE - In the recycling of mercury discharge lamps. The mercury is recycled in an environment-friendly and energy-efficient manner. Transport costs are minimised since the volume of the recycled material is greatly reduced.
Patent DE-4234568-A1 (DE)
Inventor: SEVERIN HANS GERD DR
IPC: B65G47/91
Filed: 1992-10-09
Abstract: Device for gripping articles (12), such as secondary packaging materials and stacks of paper, the device having a variable gripping region (1) which is controlled by a size sensor (4) and a number sensor (22) in that the size of channels (2) is controlled by a curtain (7) and the number of the channels (2) is controlled by a slide (23). The channels (2) are connected, on the one hand, to the external region (10) by means of external openings (11) and, on the other hand, to a partial-vacuum system (16) in the form of a suction and pressure line (15) by means of internal openings (14). The device is suitable for gripping and holding articles. <IMAGE>
Patent DE-4242801-A1 (DE)
Inventor: LEE WOUNG-MOO
IPC: H01L27/088
Filed: 1992-12-17
Abstract: A high voltage switching circuit includes a buffer circuit 30 for buffering an input signal, a high voltage pumping circuit 40 for producing a desired voltage in response to an output signal of the buffer circuit 30, and a disconnecting circuit 50 for disconnecting the buffer circuit 30 and high voltage pumping circuit 40 when the output voltage of the buffer circuit 30 is a voltage Vcc and that of the high voltage pumping circuit 40 is a high voltage, wherein the disconnecting circuit 50 includes an enhancement transistor 34 and depletion transistor 36 connected in series, gates of the transistors being commonly connected to the voltage Vcc. In a second aspect the disconnecting circuit includes a transistor means having first and second channel regions of different conductivity type. <IMAGE>
Patent DE-4243701-A1 (DE)
Inventor: PUCHTA ROLF DR
IPC: C11D1/62
Filed: 1992-12-23
Abstract: Concentrated textile softener dispersions contain quaternary ammonium compounds derived from triethanolamine and containing one, two or three fatty acyloxyethyl groups. When the proportion of compounds having two fatty acyloxyethyl groups is larger than 50 % by moles, these compounds have a particularly low viscosity.
Patent DE-4244102-A1 (DE)
Title: Domed nut for threaded fixture to wood, plastics and metal - has underside of head at angle greater than 90 deg., head has three equispaced holes as location for special tool and threads are coated in plastics
Inventor: METZER UWE
IPC: F16B41/00
Filed: 1992-12-24
Abstract: The underside (16) of the rounded head (13) is at an angle greater than 90 deg. The upper side of the head has several, spaced boreholes (14) for a tool to fit in. The angle (15) between the underside of the head and the shaft (11) is between 91 and 95 deg. Three hole of the same diameter are set at 120 deg. to each other on the head. The nut is made of either steel or brass and the thread (12) is covered in a coating of plastics for micro-welding. ADVANTAGE - Prevents overtightening and so component damage, secure fixture over temperature range.
Patent DE-4302973-A1 (DE)
Title: Drinking valve for chickens and other small animals
Inventor: ERBE SIEGFRIED
IPC: A01K39/02
Filed: 1993-02-03
Abstract: The recess (32) is preferably central and its depth measured in the longitudinal direction of the valve operating pin increases from its outer edge to its centre. The cross-section of the recess can be circular.The drip catcher can have a rounded lower edge defining the recess on the outside and changing into the circumferential area of the drip catcher or valve operating pin (26). The drip catcher can be an end part of the valve operating pin or a separate part connected to same.
Patent DE-4308200-A1 (DE)
Title: Multistorey arrangement - is used for chemical plant reducing space requirements and maintaining ease of access for maintenance
Inventor: NAMBA SHIGEAKI
IPC: H01M8/24
Filed: 1993-03-15
Abstract: A chemical plant is so arranged that a number of reactor vessels (1) are arranged on a column (21) in sections (3,22) such that a reduced volume of space is required for their installation without any sacrifice in ease of maintenance; that the overall structure incorporates the process system and is surrounded by a multistorey (2) structure providing access to each storey (2). USE/ADVANTAGE - The arrangement provides for the construction of a chemical plant and the associated process. The arrangement minimises space requirements without sacrificing ease of access for maintenance.
Patent DE-4312195-A1 (DE)
Title: Monolithic component with an electrically variable capacitance
Inventor: LANGHAMMER HANS THEO DR
IPC: H01G7/06
Filed: 1993-04-14
Abstract: Components which have an electrically variable capacitance are virtually unknown: capacitance diodes having the disadvantages of small achievable capacitances and the limitation to small useful signals as well as multilayer ceramic capacitors having an additional electrode for altering the capacitance as a function of the field strength. The existing conductive (galvanic) coupling of useful signal and control signal is disadvantageous in this case. The novel component does not exhibit these disadvantages. The layered structure means that in a monolithic component two conventional components can be combined to form one: a capacitor and a resistor. If a power loss is produced in the resistor, the temperature of the component increases. This effects a change in the capacitance of the capacitor because of a change in the relative dielectric constant of the layer material. Separate pairs of connections make it possible to operate the component as an electrical four-terminal network. Distortion of the capacitor useful signal occurs only at high useful signal power. The preferred material is ferroelectric ceramic. The component can be used, for example, in electrically tunable resonant circuits, in controllable RC or LC elements or capacitive voltage dividers.
Patent DE-4317688-A1 (DE)
Title: Method for producing a cable harness (cable loom)
Inventor: HUGHES ANDREW CHARLES
IPC: G06F17/50
Filed: 1993-05-27
Abstract: A computer-implemented method for the production of a board for the manufacture of a cable harness is used in order to convert a three-dimensional computer representation of a cable harness into a two-dimensional model of the cable harness. The method makes use of the modelling of the cable harness as a plurality of segments and the iterative movement of each segment into an unfolding plane. A representation of the two-dimensional model is produced, said representation being produced by a computer.
Patent DE-4318739-A1 (DE)
Title: Interferometer for measuring the topography of test piece (test specimen, test object) surfaces
Inventor: SCHMIDT GERHARD
IPC: G01B11/30
Filed: 1993-06-05
Abstract: A known prism interferometer for measuring the planeness (evenness, levelness, flatness) of test piece surfaces by means of oblique light incidence provides for adjusting the sensitivity, ie. for changing the angle of light incidence, in which case the illuminating system and the imaging system are swivelled in opposite directions along a common circular arc. The novel interferometer provides for a holder (12, 13) for the illuminating system (1, 6, 7) and for the imaging system (4, 8, 9), by means of which holder it is possible for the illuminating and imaging systems to be swivelled about different local fulcrums (14, 16) for the purpose of adjusting the sensitivity. This interferometer keeps the image errors occurring during adjustment of sensitivity within narrow limits over a wide adjustment range, and guarantees good imaging characteristics without an excessively high outlay on design. The interferometer can be used to measure the planeness and wear of test piece surfaces. <IMAGE>