baber/WOPTO huggingface dataset:
Patent DE-4003325-A1 (DE)
Title: Shovel excavator with slewing superstructure - has boom slewing into rearwards facing travel position alongside superstructure
Inventor: STENGER REINHARD DIPL ING
IPC: E02F3/38
Filed: 1990-02-05
Abstract: The shovel excavator has a superstructure slewing on a first vertical axis on the understructure, while a boom (6) slews on a second vertical axis in a bracket (7) on the superstructure. The slewing mechanism comprises a hydraulic ram coupled by a link to the bracket. The bracket is coupled to the boom by a crank mechanism (9), for slewing between a front working end position (A), inclined to the long axis (18) of the machine (i), round the second axis (8), and the travelling position facing rearwards w.r.t. the travel direction (F), in which it is parallel to the long axis and to the side of the superstructure.
Patent DE-4005012-A1 (DE)
Title: Low-voltage lamps alternate switching circuit - incorporates diode in series with lamp to be lit only during alternate periods of reversing switch
Inventor: JUNGBLUTH HANS-JOACHIM
IPC: H05B39/00
Filed: 1990-02-19
Abstract: Two open bare wires (11, 12) fixed to walls of a room are bridged by contact cables (13, 14) serving individual or grouped lamps (15, 16). Current is supplied from a mains transformer (26) and 12 V rectifier (20) via a polarity-reversing switch (17). One lamp or gp. (16) is connected in series with a diode (23) across the wires (11, 12) so that in one position of the switch (17), the diode is reverse-biased and the lamp (16) remains unlit until the switch (17) changes over. USE/ADVANTAGE - Esp. for flashlighting of wares in display windows. Switching of individual lamps is performed very simply and effectively.
Patent DE-4009383-A1 (DE)
Title: A=D converter coupling multiplexer to computer - derives corrections in two stages to compensate gain and offset errors
Inventor: KUGLER ROLAND DIPL ING
IPC: H03M1/12
Filed: 1990-03-23
Abstract: The a-d converter (i) is coupled to a multiplexer (5) at its input, and at its output to a computer (f), and presets an adjustment value used for production of the total correction value upon measurement of the reference input magnitudes. The correction values are entered into a memory of the computer. In the measurement, and correction of the measurement values of arbitrary input magnitudes, a number of lower valve positions is further processed, the number exceeding the preset adjustment value. ADVANTAGE - Offset errors and gain errors corrected while quantisation errors are not increased.
Patent DE-4010581-A1 (DE)
Title: Improved operating life time of pulsed gas-laser electrodes - by use of electrodes with dissimilar surface layer to have good thermal and electrical conductivity with high emission rate
Inventor: BOSCH WOLFGANG DIPL ING DR
IPC: H01S3/038
Filed: 1990-04-02
Abstract: The electrodes consist of a metal substrate (1) or support which can be formed by deep drawing, and a surface layer (3) of 3-20 micron thickness, pref.  5-10 micron. The surface layer consists of one or more refractory metals W, Nb, Ta, Rh or Cr, in a homogeneous mixt. or alloy, features a low electron release energy and a lower thermal and electrical conductivity than the material below it. A pref. combination is a support of Cu with the surface layer deposited directly on it. USE/ADVANTAGE - The composite electrodes allow a combination of properties which ensure more homogeneous discharges for a longer time, even for large area electrodes, reducing the sputtering of electrode material due to arc-discharges and depsn. of material on the laser windows. This increases the time required between successive maintenance services.
Patent DE-4014644-A1 (DE)
Title: Versatile play swing with fixed base - has spiral spring supporting upper seat with rotary and rocking movements
IPC: A63G13/08
Filed: 1990-05-08
Abstract: The play apparatus has a helical spring as a support spring for parts which move relative to each other such as an upper seat part and a lower base plate. The base plate (3) is mounted for rotary movement on a locally fixed base (9) and is provided with a drive which is operated stepwise by swivel movements of the helical spring (1) which take place in a vertical plane so that the centre longitudinal axis which is perpendicular in the normal position is bent sideways in its upper area. The drive can be a detent gearbox whereby the base has on its top side detent recesses (11) or projections. ADVANTAGE - An additional stepped turning movement as well as a to and fro rocking movement is now achieved.
Patent DE-4016694-A1 (DE)
Title: Underwater fibre-optics cable coupling - accommodates various pressure conditions separately so they are not interrupted or transmitted
Inventor: PARSTORFER RICHARD
IPC: G02B6/38
Filed: 1990-05-23
Abstract: (A) in a sleeve cou;ing for an underwater fibre-optics cable (3) with a clamp (4-6) for the cable reinforcement at the cable insertion regions and with a support (13) for the slack of optical fibres (14) passing through a pressure resistant inner tube (7) of the cable (3), the novelty is that (a) a pressure resistant inner sleeve (1) is located coaxially within a pressure-equalising outer sleeve (2) and consists of two end closure parts (12) and a pref. longitudinally split sleeve tube (24), the inner sleeve (1) receiving the cable inner tube (7) in a pressure-tight manner; (b) the support (13) is located within th sleeve tube (24), the interior of which is filled with a cable filler material (23), pref. ''AH-4' sealant; (c) the inner sleeve (1) is sealed with a shrink-fit inner lining (17); (d) the outer sleeve (2) has two end closure parts (5) with conical clamps (4-6) for the cable reinforcement (27); (e) the cable inner tube (7) passes, without interruption in the outer sleeve (2), into the inner sleeve (1); (f) a rigid elastic sleeve tube (9), which covers the entire inner sleeve (9), is supported on the end closure parts (5) of the outer sleeve (2) and is pref. enclosed by a sealing tape (10) which pref. consists of butyl and which lies below a shrink-fit outer sheath (11) sealing the outer sleeve (2); and (g) the interior of the outer sleeve (2) is filled with a sealant (8) which is pref. a two-component material based on polyol and polyisocyanate components. (B) A method of joining underwater fibre-optics cables using the sleeve coupling is also claimed. ADVANTAGE - The design accommodates the various pressure conditions separately so that these pressure conditions, even in the coupling, are not interrupted or transmitted.
Patent DE-4021967-A1 (DE)
Title: Main and auxiliary battery housing for camera - comprises auxiliary chamber joined to main chamber via opening closed when main rectangular battery is inserted
Inventor: MORISAWA TAHEI
IPC: H01M50/202
Filed: 1990-07-10
Abstract: The main chamber (17) is for the main, e.g. rectangular Ni-Cd, battery for the main camera functions including motor-drive. The auxiliary chamber is for a smaller battery ensuring that the data in a memory are not lost even if the voltage of the main battery drops. The opening (21) between the chamber is closed when the main battery is inserted. The auxiliary chamber has a rotatable ejector lever whose ejector arm projects into the auxiliary chamber while its operating arm projects into the main chamber. The ejector arm removes the small battery, e.g. button battery (16). ADVANTAGE -No cover required for auxiliary battery chamber. No risk of it becoming lost as is usually the case when a small cover is assigned to a small aperture in the camera body.
Patent DE-4023895-A1 (DE)
Title: Device for laying cables around area under surveillance - comprises reel of optical cable with tapered and grooved core for attachment to body of projectile
Inventor: SCHAUER FRIEDRICH
IPC: G02B6/44
Filed: 1990-07-27
Abstract: Pressure-sensitive cables (2) are laid for effective coverage of the area around a protected installation by unwinding from the conical core (7) of a reel (8) in a housing (10) fixed to a projectile (6). Each cable (2) embodies two optical waveguides in a common sheath with a splice at the end. To prevent excessive traction on the cable (2) at the firing of the projectile (6), a spiral groove (11) is formed in the surface of the cone (7) pref. terminating at its small-dia. end. USE - At e.g. airfields, power stations, business premises, barracks and other military installations.
Patent DE-4024591-A1 (DE)
Inventor: BRANDL GERHARD
IPC: F04B17/05
Filed: 1990-08-02
Abstract: A free-piston engine has one or more pistons (1) which are preferably rigidly connected to hydraulic pistons (2) and which move freely in cylinders along the longitudinal axis. The rear face of the piston (1) is used to convey the combustion air and the piston movement is induced and controlled by electronically actuated hydraulic valves (8).
Patent DE-4025768-A1 (DE)
Title: Membranes with integrated drainage prepn. for filtration - by filling pores in flat polyolefin article with liq., coating with soln. of polyamide membrane polymer, and converting layer into membrane
Inventor: MELZNER DIETER DR
IPC: B01D69/10
Filed: 1990-08-14
Abstract: Prepn. comprises (1) partly or completely filling hollow of a flat porous shaped article (I) for drainage purposes with a liq. (II), (2) coating (I) with casting soln.  contg. a membrane polymer (III), and (3) converting layer of casting soln. into a membrane by phase inversion.  Membranes are prepd. by above process. Pref.  (I) is nonwoven fabric, esp. polyolefin, polyamide,  or polyester. (II) is pptn. agent for (III). (II) is water, esp. contg. wetting agent. Hollow spaces are filled by applying layer of (II) on solid support and laying (III) on the support. Support is a drum in the pptn. bath, and layer of (II) is applied by rotation of drum. (I) is coated with casting soln. in 2 stages, esp. with casting solns. of different compsn. and/or with different (III). Process is continuous. (III) is polysulphone, polyamide, polyether sulphone, cellulose deriv., or fluoro-polymer soln. in organic solvents. Phase inversion comprises immersing coated (I) in pptn. bath. USE/ADVANTAGE - Ultra- or micro-filtration or as microporous adsorber. Depth of penetration of casting soln. in (I) can be regulated without having to effect viscosity of casting soln.; membranes reinforced on one side can be prepd., reinforcement also used as drainage.
Patent DE-4038023-A1 (DE)
Title: Prodn. method for twin or multi-shell container from cardboard - uses base frame with at least two male and female die assemblies
Inventor: MARKHORST ROBERT L
IPC: B31B50/59
Filed: 1990-11-29
Abstract: The upper part (2) has at least two male dies (5,6) involving a section of material (9) between the base frame (1) and the upper part (2). The material is formed into two or more interconnected containers, and one of the tools used, which work in conjunction with one another, is spring-pliable so that the container applied to it is formed before the others. The outer edge areas of the section of material (9) is not firmly fixed during formation of the two containers. The upper part supporting the dies can move forwards and backwards, and the base frame (1) is in two parts, with one female die (4) held stationarily whilst the other (3) is spring-pliable in its location. USE - To produce two or multi-shell containers from cardboard.
Patent DE-4039648-A1 (DE)
Title: Measurement value processing system for biological object - mathematically evaluates and compares with given measurement value structures
Inventor: WENDLER ROLF
IPC: A61B5/0488
Filed: 1990-12-12
Abstract: A measurement value processor (7) is coupled to the biological object (1) via multichannel measurement value detectors (2,3,4,5,6) e.g. various sensors. The processor is coupled to auxiliary devices (12,13,14). The processor has a first device (8) for entering the measurement values from at least one of the detectors, a second device (9) for comparing the measurement values with given values, a third device (10) for starting the auxiliary devices when a first predetermined value is attained and a fourth device (11) for stopping them when a second predetermined value is attained. The second device has given single or multi-channel measurement value structures. The third device operates when a first measurement structure has been attained. The fourth device operates when a second structure has been attained. A fifth device (20) between the first and second devices serves as an evaluator for calculating characteristic values from series of measurement values for reduction of data. USE/ADVANTAGE - Human or veterinary medicine. Operates in real time.
Patent DE-4040561-A1 (DE)
Title: Dust removing and/or sorting granular material in air stream - exhaust air through top charge aperture next to material for feed into air swirl flows
Inventor: LUEBKE HOLGER DIPL ING
IPC: B07B7/08
Filed: 1990-12-19
Abstract: To remote granular or fibrous material from an air stream, the material (1) is passed into an upper opening (2) of a shaft (3) and a vortex of air stream is produced. Air is passed through the upper charge opening of the shaft together with the material (1) and the extra air is drawn into ther swirling flows. Thus, the granular material and additional air are separated from the discharged fine material and exhaust air flow through a perpendicular partition (26), which ends above the axis of the air vortex. The screening boundary w.r.t. the separation of the coarse and fine particles can be adjusted by moving the partition.
Patent DE-4100939-A1 (DE)
Title: Feed nozzle for injection moulding machine - has protrusion into polymer passage to give better flow pattern and less waste when colours are changed
Inventor: JEHN PETER DIPL ING
IPC: B29C45/27
Filed: 1991-01-15
Abstract: A nozzle for supplying molten polymer to an injection moulding machine has at its tip (22) a protrusion (25) which projects into the circular cross-section of the polymer channel. The protrusion can have a number of shapes and can extend to various lengths along the polymer channel. A nozzle is held in a housing and is heated by electric heating cuffs fed from an electric cable. Polymer is supplied through a circular duct and then flows through a duct past the protrusion into a paraboloid space. In a typical application the number of flushing shots required for a change of colour was reduced to less than a quarter from the previous value of 25. USE/ADVANTAGE - The method impoves the flow pattern so that colour change-overs incur less waste.
Patent DE-4101923-A1 (DE)
Title: Ice making machine - shuts off at predetermined time after movement of plate detecting ice accumulation
Inventor: HIDA JUNICHI
IPC: F25C5/18
Filed: 1991-01-23
Abstract: The ice-making machine has a vertical cylindrical evaporator housing (13) enclosed by the evaporator coil (14) of a refrigeration circuit and above the ice storage tank (41).  A scraping auger (15) driven by an electric motor (18) rotates in the housing. The circuit contains a motor-driven compressor.  A passage (30) at the top of the housing discharges the hard ice cubes via a tubular vertical shaft (31) to the tank.  The plate of an ice detector mechanism (32) at the top of the shaft is deflected by the ice accumulated in it and shuts off the motors. The control system shuts off the motors at a predetermined time interval after the plate (32b) has been deflected from its initial position.  This interval is less than that in which the space between the passage (30) and the plate is filled with ice, the latter being discharged when the plate has moved clear. ADVANTAGE - Reduces frequency of switching operations and consequent compressor wear and damage.
Patent DE-4109472-A1 (DE)
Inventor: MENDLE JOHANN
IPC: F02M59/10
Filed: 1991-03-22
Abstract: The fuel injection pump has a drive shaft (15) with a plurality of eccentric drive cams (16-18), the rotary movement of which is converted into the reciprocating movement of the pump piston (46) via crosshead blocks (45). The space (13) containing the drive shaft (15) is connected to the fuel supply line (30) via drillings (56, 55). The pump working chamber (66) is supplied with fuel via drillings (67) in the piston and drillings (51) in the crosshead blocks and recesses (54) in the drive cams. A geometrically precise intake control is facilitated by the recesses formed on the periphery of the drive cams.
Patent DE-4112517-A1 (DE)
Title: Anti-theft vehicle window etching - has sandwich of carrier and stencil and application films to be peeled clear for sharp etching
Inventor: RISTAU HARALD
IPC: B05C17/06
Filed: 1991-04-17
Abstract: The material to etch vehicle index number on the windows, to deter theft, has a stencil film (20) of a material resistant to the etching paste, in a rectangular or other suitable geometric shape, cut out (11) in the shape of the letters and numbers (10). The film, of plastics, is coated (25) on the reverse side (20a) with an adhesive. A carrier film (30) as a section (31) of oiled paper, plastics film or the like, supports the stencil film (20) through its adhesive (25), so that they can be peeled apart without disturbing the adhesive layer (25). The application film (40) on the upper side (20b) of stencil film (20) is a section (41) of plastics, cardboard or other suitable material with a cladding (45) on the side (40a) towards the stencil film (20) to hold the sepd. stamped film (28) for the index mark (10) by adhesive. The stencil film (20), carrier film (30) and the application film (40) have the same shape and dimensions. The adhesive force of the layer (25) on the stencil film (20) is greater than the adhesion of the adhesion layer (45) on the application film (40). ADVANTAGE - The system gives a sharp outline to the etched index mark on the glass surface, without blurred edges.
Patent DE-4115087-A1 (DE)
Title: Externally toothed hydraulic motor - pairs large gearwheel with much smaller one
Inventor: LEHMANN GERHARD
IPC: F04C2/14
Filed: 1991-05-06
Abstract: A circular housing (2) surrounds a large gear wheel (1) connected to a drive and set axially and radially into the housing, although sealed only axially. Around the periphery of the housing(2) are pockets (6) containing much smaller gear wheels (3) which are axially sealed. At the point of contact with the large wheel each pocket (6) has hydraulic inlet and outlet ducts (4,5). For multiple pairing the housing (2) has hydraulic inlet and outlet ducts (4,5) for each pair. All inlets and outlets of a system are coupled with each other and can be connected or disconnected singly, in groups, or as a whole. USE/ADVANTAGE - Very low output speed and increased torque go hand in hand.
Patent DE-4117611-A1 (DE)
Title: Continuous monitoring equipment for variable air floor - controls electrical motor according to air demand signal and computed efficiency
Inventor: BURGDORF ACHIM
IPC: F23N1/02
Filed: 1991-05-27
Abstract: An arrangement monitoring a variable air flow contains an evaluation circuit whose input is connected to a pressure measurement cell with a fixed switching point in the air flow, a revolution rate sensor and a ventilator drive power meter. A computer in the evaluation circuit computes the power of the ventilator drive when the pressure cell reaches its switching point. The evaluation circuit receives an air demand signal and drives a revolution rate controller according to the air demand signal and the computed operating efficiency. USE/ADVANTAGE - Continuously monitoring variable air flow produced by ventilator driven by electrical motor controlled by revolution rate controller. Simple arrangement enables measurement of throughput in partial load range.
Patent DE-4122412-A1 (DE)
Title: Moulding prodn. with decorative surface - by inserting decorative material with edge bent inwards in injection moulding tool
Inventor: JOHANNABER FRIEDRICH DIPL ING
IPC: B29C70/68
Filed: 1991-07-06
Abstract: The method produces mouldings with surfaces covered by decorative material by injection moulding with plastic behind the latter while in a moulding tool. The decorative material is inserted in the tool with its edge bent inwards to form a trough which is filled with plastic during the moulding operation. ADVANTAGE - The edge can be bent through more than 90 degs..
Patent DE-4128392-A1 (DE)
Title: Spark plug with noble metal insert approximately half surrounded by end region of earth electrode - has platinum@ insert in slot at tip of earth electrode which does not burn away during use
Inventor: NIESSNER WERNER
IPC: H01T13/32
Filed: 1991-08-27
Abstract: The spark plug is of traditional design with a ceramic inner insulator holding one electrode and a metal outer casing holding the earth electrode a short distance from the positive electrode, but the tip of the earth electrode is of composite design. The earth electrode is made from, say, nickel-plated copper and at its tip is a slot. Into this slot is welded a segment of metal which will not burn away through repeated sparking. The segment protrudes slightly from the earth electrode. This segment is made from a noble metal like platinum or is platinum-plated. A development has a similar insert in the positive electrode. ADVANTAGE - Longer working life.
Patent DE-4130997-A1 (DE)
Title: Easily assembled single-acting fluid power cylinder - has outward movement of piston limited by end nut with flats permitting nut to be dropped into bore before assembly of piston
Inventor: SCHOTT HERBERT
IPC: F15B15/24
Filed: 1991-09-18
Abstract: The cylinder (1) has a stepped bore in which outward movement of the piston (3) is limited by contact of a piston end nut (6) with the annular abutment face (1b). The end nut (6) is in the form of a disk with diametrally opposed flats. A peripheral slot (6a) in the end nut can be engaged by a tool bit passed through the oil inlet hole (1a) to hold the nut whilst the piston (3) is screwed home. To secure the end nut a grub screw is tightened by a screwdriver also passed through oil inlet hole (1a). USE/ADVANTAGE - Easy assembly of single-acting fluid power cylinder can be done without risk of damage to seals.
Patent DE-4137329-A1 (DE)
Inventor: MUELLER MANFRED DIPL ING
IPC: B21D13/04
Filed: 1991-11-13
Abstract: In a device for bending trapezoidal or corrugated profiled plates made of metallic materials, the profiled plates are to be deformed in an arc at right angles to the cross-section of the profile in a simple, portable and reliable device. This object is achieved according to the invention by a device for bending trapezoidal or corrugated profiled plates made of metallic materials, preferably aluminium or aluminium alloys, the bending radius lying in one plane with the longitudinal axis of the profiled plates, the device comprising an upper and a lower forming roll (6, 10) which can be pressed into a foot of the profiled plate, gears or individual teeth (4, 5) being arranged on the forming rolls (6, 10) and a deformation space being formed between the forming rolls (6, 10). <IMAGE>
Patent DE-4142895-A1 (DE)
Title: Radial fan for coal pulverising plant - has strengthening ribs and deformation elements to contain dust explosions.
Inventor: FRANKE DIETER
IPC: F04D29/42
Filed: 1991-12-23
Abstract: The radial fan is for the delivery of explosive media, eg. pulverised coal. The thin-walled fan housing (1) is enclosed by an array of reinforcing ribs (2,3,4) extending over the top and sides. Deformation elements (6) are so arranged and dimensioned between the pressure flange (5) and the supports (7,8) that any pressure reaction forces are converted via the deformation elements into a tensile deformation output. USE/ADVANTAGE - Radial fan for a coal pulverisation plant which can absorb reaction forces following a dust explosion without the housing bursting open.