baber/WOPTO huggingface dataset:
Patent DE-3913880-A1 (DE)
Inventor: ROHDE WILHELM
IPC: F25J3/04
Filed: 1989-04-27
Abstract: A process and apparatus for the low-temperature separation of air with variable oxygen production are described. Compressed, pre-purified and cool air (line 5) is pre-separated in the pressure stage 10 of a two-stage rectification 9. The bottom liquid thus formed is further separated in the low-pressure stage 11. Liquid nitrogen 14 from the pressure stage 10 and liquid oxygen from the low-pressure stage 11 can be temporarily stored in tanks 35, 32. In addition, a liquid-air tank 14 is provided for storing bottom liquid 12 from the pressure stage 10. If the production of oxygen is increased, the throughput in the pressure stage 10 can be increased and at the same time the throughput in the low-pressure stage 11 and the reflux ratios in the two rectification stages 10, 11 can be kept constant.
Patent DE-3915649-A1 (DE)
Title: Null voltage circuit detecting AC voltage zero crossing - contains high impedance potential divider, FET and diode controlling semiconductor element
Inventor: SCHOSS MATTHIAS
IPC: G01R19/175
Filed: 1989-05-12
Abstract: The tapping (TP) a.c. voltage of a high impedance potential divider (R1,R2) connected between the connection poles of an a.c. voltage is applied to a FET (T1).  Whenever a gate-threshold voltage causing switching starting or finishing approximately at null is reached the FET output is used to control a semiconducting element (T2) during one half wave. During the other half wave, the voltage across an opposite polarity diode in the output circuit (Z) is used.  The null point switching signal is taken from a resistor (R3) in the semiconductor (T2) circuit. USE/ADVANTAGE - Switching ringing current voltage in telecommunications.  Null point signal is produced at low component cost and with reduced current consumption.  Can be realised as integrated component.
Patent DE-3916394-A1 (DE)
Title: Method for producing multi-layered waffle blocks
Inventor: STEPKOWSKI JAN
IPC: A21D13/08
Filed: 1989-05-19
Abstract: The subject matter of the invention is the technology for producing waffle blocks which makes it possible to increase the output of systems for producing waffle blocks while eliminating defects and ensuring that essential hygienic conditions are met. The invention is characterised in that between the process of coating the waffle slabs with a layer of cream and the process of stacking the waffle blocks, the process of cleaning the layer of cream from the front edge is inserted, in such a way that the waffle slabs which are coated with cream are fed to the surface of the rotating cylinder by the front edge at an appropriate speed and an appropriate angle. The invention is to be used in the production of waffle blocks in confectionery companies.
Patent DE-3921464-A1 (DE)
Title: liq. manure stirrer - with helical drive shaft which is terminally increasing in dia. within widening flow shield to increase air induction
Inventor: DORN HELMUT
IPC: B01F3/04
Filed: 1989-06-30
Abstract: The submerged motor (12) for driving a liq. manure mixer is flangedly affixed to a housing integral with an axial cylindrical section (20), coaxial with the motor and closely surrounding a helical worm (42) of constant pitch. This housing section broadens out (34) in its forward direction as a flow shield (38) accommodating further worm turns (44) increasing in dia and in the distance between turns, changes which continue progressively to the final stirrer rotor (16). The constant dia. housing section (20) has wall apertures (30) communicating with a hollow ring (28) accessible to the open atmos. At least the front portion of the flow shield may be of a different selected length, axially adjustable, or made of two half-shells. ADVANTAGE - Increased air flow is drawn into the slurry zone, so motor is not overloaded even for thickest manure sludge.
Patent DE-3924597-A1 (DE)
Inventor: ZIESAK HERBERT
IPC: B65D45/32
Filed: 1989-07-25
Abstract: A sheet metal container (1), such as a pail, bucket or the like, is provided with a push-in lid (2), in which the deformation resistance of the connection region is increased substantially by edge rolling (8) of the lid (5) and a fixed spiral rolled edge (13) of the container (1) and a trapezoidal cross-section of the clamping ring (19) located adjacently in the radial direction. <IMAGE>
Patent DE-3926480-A1 (DE)
Title: Tool turret with automatic tool changing mechanism - has plunger-actuated sliding wedge in cross-bore of spindle to move draw-bar and release tool
Inventor: REINAUER JOSEF
IPC: B23Q3/155
Filed: 1989-08-10
Abstract: Viewed in longitudinal section through a rotating spindle, the turner has radial spindles with a bore (24) to accept the shank end (26) of a tooling system module. The module is locked in position by a drawbar cone (42) forcing the jaws (36) outwards against an internal cone (38) of the module. The drawbar is forced towards the turret axis by the powerful spring (34). A centre pin (66) can be forced against the end of the drawbar, thus releasing the tooling module, by the movement of a wedge (80, 76, 84) sliding in a cross-bore of the spindle. When the spindle is at rest a spring loaded plunger (94) with one end accessible from the turner face (2) can be depressed to activate the tool clamping and release mechanism. USE/ADVANTAGE - Can be applied to fixed and rotating spindles of the turret. Easily accessible for actuation by simple means such as rod of pneumatic cylinder.
Patent DE-3926738-A1 (DE)
Title: Moving poster stand for displaying several posters - has screen which switches between opaque as posters change, and transparent when posters are in place
Inventor: CURRAN JOHN
IPC: G09F11/18
Filed: 1989-08-12
Abstract: A moving poster stand comprises a frame (10) having attached  thereto rotatable rollers (28,30) for rotating a poster carrying belt (32) into a variety of positions in which different posters are viewable through a view window on the front of the frame (10). The view window is covered by a transparent plate or foil (12) which can be switched between transparent and opaque conditions by varying an applied electric potential. USE/ADVANTAGE - Sports stadiums e.g. for advertising of football matches.  Screen can be made opaque as adverts are changing so as not to irritate  viewer by showing only parts of pictures, and then switched to transparent when the next poster is in place.  A compact, light and inexpensive system.
Patent DE-3927864-A1 (DE)
Title: Compost cut from pile by belt-mounted scrapers - transferred by inclined conveyor belt to new location
Inventor: WILLIBALD JOSEF
IPC: C05F17/02
Filed: 1989-08-23
Abstract: Compost is removed from the end of an elongated pile by the action of horizontal cutter and chopper blades affixed to a flexible belt circulating round  vertical axes and of similar height to the pile. Laterally of the belt is an inclined conveyor with transverse feed bars and pivotable about a joint to deposit removed compost to start a fresh pile. Drive mechanisms for cutter belt and conveyor belt may operate from a single power source or from separate hydraul1c motors. The unit is mounted on wheels or runners. ADVANTAGE - Reduced tendency to clog.
Patent DE-3932825-A1 (DE)
Title: Hollow explosive charge - has inner hollow body which deflects shock waves of detonation to increase effect of explosion
Inventor: GROESSLER PETER DIPL ING
IPC: F42B1/028
Filed: 1989-09-30
Abstract: A hollow explosive charge has a main charge (3) enclosed in a cylindrical housing (2). The front end of this housing has a conical recess which is provided with a  covering layer (4). A hollow body (10) is attached to the apex of the conical recess. This hollow body is formed from three frusta of cones which intersect each other. This hollow body contains the ignition material (15) which is detonated by the detonator (6). The shape of the hollow body reflects the shock waves generated by detonation in such a manner that the effectiveness of the explosion of the main charge is increased. USE - Hollow explosive charges.
Patent DE-3936233-A1 (DE)
Title: Graphics processor with memories storing sequential image data - allows page data to be stored and format and size manipulated
Inventor: SAKURAGI HIROSHI
IPC: G06T1/00
Filed: 1989-10-31
Abstract: A graphics processing system has a control module and processor accessed by a keyboard to allow document data to be stored in a memory and then displayed while the format is manipulated.  The system memory is divided into a main memory that holds the control programme, a page memory (42). The display memory is divided into sections (42a,42b,42c) used during the modification of display data, e.g. expansion, reduction, rotation etc.  The memory has a coupled address circuit (44) and an expansion/reduction controlJ-circuit (46).  Information can be manipulated and stored before being displayed in that form. ADVANTAGE - Allows play format to be manipulated on screen.
Patent DE-3938467-A1 (DE)
Title: Rail with shower curtain - is connected to holder for detachable fixing on room walls
Inventor: GRUHL CHRISTIAN O
IPC: A47K3/38
Filed: 1989-11-20
Abstract: The rail (6) with shower curtain (7) which is mounted above a portable shower tray (2) is detachably connected to the toilet room (1) pref. to a holder (5) fixed on the walls thereof.  The holder can have clamping members which are pressable through spring force (11) against the walls. The rail could be connected to a closed cover. USE - Rail with shower curtain for existing toilet areas.  4pp Dwg.No.1/
Patent DE-3938714-A1 (DE)
Title: Optical determination of object shapes, shape variations - using structured coloured light projected onto objects for high resolution, dynamic measurement
Inventor: BREUCKMANN BERND DR
IPC: G01B11/25
Filed: 1989-11-23
Abstract: The method of optically determining the shapes of objects involves detecting and evaluating structured light information from the illuminated object. Structured colour information is used. The measurement object is briefly illuminated with structured coloured light. The coloured structured light is projected by a video projector or a holographic optical element. Several colored patterns differing in colour and/or spatial distribution are projected onto the object simultaneously and/or successively. USE/ADVANTAGE - For measuring the shape, shape variations etc. of objects. Has very high resolution and is suitable for measuring dynamic processes.
Patent DE-3939464-A1 (DE)
Title: Hairdressing device with heated curler and processing medium - has pressure compensating container ensuring recycling of vaporised medium
Inventor: HAUPT MANFRED
IPC: A45D7/04
Filed: 1989-11-29
Abstract: The hair treatment device has a pressure compensating container (30) which is connected by a bypass pipe (34) on one side to an ejector (31) which lies in the main return line (12) uptream of the pump (9) and on the other side to the main return line (12) at front a point downstream fo the pump (9) by a three way valve (33). A preheating stretch (38) can be connected by a three way valve (37) to the pressure compensating container (30) which lies in the main lien (12) downstream of the pump as well as to an air intake channel and on the other side to the main supply line  (11) to the hair curlers. USE/ADVANTAGE - Hair treatment device. The vaporised substances of the processing medium can be returned to the circulating processing medium and mixed up again in the pump.
Patent DE-3943321-A1 (DE)
Title: Circular saw blade tooth - has negative-rake outer chip face and positive rake inner one
Inventor: YOSHIKAWA TAKEHIRO
IPC: B23D61/04
Filed: 1989-12-29
Abstract: The circular-saw blade comprises a disc with central axis through which radial lines are defined.  Teeth along the periphery have cutter inserts at their tips. Each insert (2) has a first chip face (3) at its radial outer portion and with a negative rake angle to the radial line (b).  A second face (5) is situated further inwards and between the first one and a third innermost one (4).  The latter has positive rake angle to the radial line (b). ADVANTAGE - Long life and greater resistance to breakage.
Patent DE-4000756-A1 (DE)
Title: Gymnastics landing mat with uniform synchronised characteristics - comprises lower thicker mat of soft polyurethane foam and thinner harder upper foam layer
Inventor: BENZ GUNTER DIPL ING
IPC: A63B6/02
Filed: 1990-01-12
Abstract: A landing mat for gymnasts is described and consists of a number of lower mats (2) joined together and covered by a one-piece upper mat (3) to form a jointless surface giving synchronised characterics. The lower mat (2) is mfd. in a soft polyether foam and is much thicker than the upper mat (3), which is mfd. in a harder plastic foam typically 'Trocelen' (RTM), and has a covering layer (4) of needled felt. A polyester material layer (9) covers the upper surface of the lower mat (2) and the base and sides of the lower mat (2) are covered in PVC. USE/ADVANTAGE - The mat is used as a soft landing surface for gymnasts and exhibits uniform coordinated characteristics.
Patent DE-4003930-A1 (DE)
Title: Clamping set for shaft and hub connection - consists of inner clamping sleeve, and outer clamping ring, both with lengthwise slots, and nut
Inventor: HAUG UWE
IPC: F16D1/094
Filed: 1990-02-09
Abstract: The clamping set for a shaft and hub connection consists of an inner, longitudianlly  slotted clamping sleeve (1), and an outer lengthwise-slotted expandable clamping ring (2). A clamping-nut (4) is screwed onto the threaded part (6) of the inner clamping sleeve. The clamping nut is pivotally fixed to an annular clamping piece fitting between the inner clamping sleeve and the outer clamping ring.  The clamp piece (3) can be moved axially towards the inner clamping sleeve and outer clamping ring.  The clamping sleeve and/or clamping ring has a conical contact surface (16,17) for  the clamping piece. USE/QDVANTAGE - The easily manipulated clamping set avoids the part being mounted on a shaft to move axially, during clamping.
Patent DE-4005662-A1 (DE)
Title: Combination of serving tray, cutlery, crockery and coaster - is used in car, train or aeroplane and has magnetic pieces
Inventor: GRUBER BRUNO
IPC: A47G23/03
Filed: 1990-02-22
Abstract: The combination of a coaster/saucer (4) for cutlery, beaker, or bottle or can has a serving surface (39), for example a serving-tray (3). At least one of the elements of the combination e.g. the saucer/coaster has a magnetic piece (6) preferably part of the stand-base (15). The other part of the combination (e.g. the tray is at least partly of ferromagnetic material e.g. iron. A thin plate or foil (8) made of flexible, elastic material e.g. rubber or plastics is stuck or vulcanised to the underside (5) of the middle of the coaster/saucer. USE/ADVANTAGE - The serving combination is for used in various forms of transport, eg vehicles, trains, ships, aircraft.
Patent DE-4006134-A1 (DE)
Title: Safe microwave activation of thermoplastics - by addn. of conductive polymer e.g. poly:pyrrole, poly:aniline, poly:thiophene, poly:furan etc. as microwave-activated component
Inventor: PILLER ANDREAS
IPC: C08L101/00
Filed: 1990-02-27
Abstract: Process is claimed for melting dry thermoplastics (I) by the action of microwaves. The novelty is that (I) contains conductive synthetic materials, pref. conductive polymers (II) as a microwave-activated component. Process is claimed for screening leakage radiation and interferring radiation in open and semi-open microwave heating of (I) by applying a coating of (II) to the side of (I) opposite the radiation. A similar screening process is claimed, by applying a screening coating of radiation-resistant material pref. Al or Cu on the surface under the coating of (II). (II) is polypyrrole, polyaniline, polythiophene, polyfuran, poly-p-phenylene or a deriv. therof the screening layer in 2 can be of radiation-resistant, flexible metal, and the screened plastic is made adhesive by pressing. The screening layer can consist of (II). USE/ADVANTAGE - The invention provides an alternative process for the microwave activation of thermoplastics and a process for the effective and safe use of microwave activation.
Patent DE-4011856-A1 (DE)
Title: Dough extruding machine - has mechanical extruder with single drive shaft which operates both feed and extrusion systems
Inventor: KRUMBEIN WOLFGANG
IPC: A21C5/00
Filed: 1990-04-12
Abstract: In a dough extruding machine, an extruding system and a feed mechanism are both driven by a central drive shaft, and the piston of the extrusion system is raised and lowered by two screwed rods and nuts which are turned by gear quadrants. A system of cams is used to raise a set of bars which lifts and lowers the feed mechanism out of and into the plane of the transport belts. The storage container of the extrusion system is in the form of an exchangeable magazine which is open at the top and bottom. USE/ADVANTAGE - Partly-automated device for extruding dough onto baking trays. Used in small and medium sized bakeries. The device is economical to produce and to operate, and is practical for use in small bakeries.
Patent DE-4013538-A1 (DE)
Title: Thermal control for extruder barrel
Inventor: HEHL KARL
IPC: B29C48/09
Filed: 1990-04-27
Abstract: A temp. controlling device for the barrel with nozzle on plastics processing equipment has outer metal jackets with inner contact surface and concentric exterior; these jackets are held tightly against the surface to be controlled using straps; two such jackets are used in each case and they contain thermal elements in the form of tubes; they each have at least one loop with two straight arms and one curved part, the loop being disposed symmetrically about a longitudinal line along the barrel. A single temp.  control element is embedded in each jacket and has areas free of the embedding cast metal, where there are holes from the inner and outer surfaces of the jackets.
Patent DE-4019266-A1 (DE)
Inventor: MUELLER HEINZ
IPC: C09K8/34
Filed: 1990-06-16
Abstract: Described is the use of oleophilic esters of ecologically compatible polycarboxylic acids with oil-soluble and ecologically compatible monohydric alcohols and/or polyhydric alcohols, which can also be water-soluble, as the oil phase or a component of the oil phase in oil-based or water-based borehole-flushing fluids and other fluid borehole-conditioning agents. Oleophilic polycarboxylic acid esters are particularly suitable for use as components of the closed oil phase of W/O-type invert flushing fluids. In such applications, using appropriate compounds with suitable rheological properties, they can make up the greater part of the closed oil phase. It is possible, however, to use, in addition, complex oleophilic polycarboxylic acid esters which are not fluid or are only fluid to a limited extent between 0 and 20  DEG C as additives in fluid oils of the non-polluting class. Particularly suitable mixed oil phases are oleophilic alcohols, ethers, the corresponding monocarboxylic acid esters and fluid oils based on oleophilic carboxylic acid diesters.
Patent DE-4019834-A1 (DE)
Title: Automatically controlling milling of gearwheels - using movable optic sensor to identify each gearwheel before processing
Inventor: MACK RUDOLF
IPC: B23F23/12
Filed: 1990-06-21
Abstract: The type and size of each gearwheel (1) is determined by an optic sensor (6) which scans the gearwheel from a number of preset positions and compares the scan measurements with programmed values. This determines what processing is to done without the operator having to operate any controls. The gearwheels are clamped into rotating chucks (3) and the movement of the sensor is  controlled by a processor (9). A first scan axially differentiates between bevel gears and wheel gears. A lateral scan determines the gearwheel size, with a rotation to determine the tooth pitch. An angled scan identifies bevel gears. ADVANTAGE - Fully automatic gear processing, can handle mixt of gearwheels, e.g. gearwheel finishing process.
Patent DE-4023286-A1 (DE)
Title: Sealing frame for closure, of door and window apertures - comprises side profiles with sealing strip on outer periphery
Inventor: BUSS DIETER
IPC: E06B9/00
Filed: 1990-07-21
Abstract: A multi-angled frame fits into the building aperture (30). It is provided with a cover plate (19) tensioned over its surface. The side profiles (1-4) are provided on the peripheral surface with an all-round, compressible, elastic sealing strip (12). The lengths of the side profiles are extendable by tension components (5-8) in order to press the sealing strip against the soffits (10,11) of the building aperture (30). The sealing strip has an L-shaped profile, the first arm of which is adhered to the side profiles, whilst between the second arm and side arms of the side profiles (1-4) the cover plate (19) is fitted. The side profiles are U-shaped. USE/ADVANTAGE - As a sealing frame for door and window apertures in buildings located in areas where there is a risk of flooding.
Patent DE-4025368-A1 (DE)
Title: Stacking magazine for both crates - has lift chain with transport elements on only one side of transporter
Inventor: KAISER KLAUS
IPC: B65G47/51
Filed: 1990-08-10
Abstract: The stacking magazine for bottle crates has at least one life (7) set on a machine frame (6). The lift and associated supports (11) are only provided on one side of the transporter (4). The lift chain (8) is guided underneath the transport plane (TE) over a first guide (10) so that it forms a first section adjoining the  transporter (4) where the horizontal contact bearing faces (11'') of the supports (11) adjoin the transporter to seize the transport crates (2), and a second section which is provided at the side of the transporter at a greater distance than the first section so that the supports there do not seize the crates (2). The carriers are fixed in the direction of movement of the lift chain (8) on same at regular intervals and holder and/or supports (14, 18) are provided to support and hold the crates which are seized by the carriers (11) on only one side of the transporter. ADVANTAGE - Reduced structural width.
Patent DE-4035558-A1 (DE)
Title: Interference pulse elimination circuit for data lines - provides rest signal level in critical interference condition along data line
Inventor: BOECKER GERD DIPL ING
IPC: G06F11/20
Filed: 1990-11-08
Abstract: The circuit (S) comprises 2 pluggable modules (BG1, 2), each with its own voltage supply (SP1, SP2), coupled via at least one data line (DL). The first module (BG1) has a microprocessor (MP), a line driver (LT), and a voltage monitor (WD). The second module (BG2) comprises a pulse evaluator (PB), coupled at its input to the microprocessor output via the line driver and the data line. The critical interference condition, e.g. switching one module, is detected by the voltage monitor to allow a defined rest signal level to be provided along the data line, with simultaneous low-ohmic coupling of the input (PBE) of the pulse evaluator to earth via a resistor (R). USE/ADVANTAGE - For data processing networks, with defined rest signal level for both modules.
Patent DE-4036945-A1 (DE)
Inventor: BERGNER RAINER
IPC: B65D51/24
Filed: 1990-11-20
Abstract: Described is a package system for free-running materials, which is designed to reduce significantly the cost and complexity of the packaging process, at the same time improving the handling and dosing characteristics of such packages. This is achieved by means of a rigid container (1) with a closable lid (3) and by means of a flexible sachet (2) filled to tantness with extrudate powder and/or granular material, the shape of the outside of the sachet matching the shape of the inside of the container.