baber/WOPTO huggingface dataset:
Patent DE-3920293-A1 (DE)
Title: End position damping for piston-cylinder aggregate - involves partial obstruction of flow channel by closure member
Inventor: STOLL KURT DIPL ING
IPC: F15B15/22
Filed: 1989-06-21
Abstract: Piston-cylinder aggregate with a device for the fluidic end position damping of the piston (5) in which the closure member (24) in the damping position partially closes the opening (20) of a flow channel (19). The fluid in the cylinder cavity (7) must now flow through a restricted opening and during the damping movement the closure member, for example, a bellows, maintains its damping position by movement relative to the piston. USE/ADVANTAGE - Piston-cylinder aggregate of simple construction and reduced volume having a long operating life with constant damping intensity.
Patent DE-3923934-A1 (DE)
Title: Filler for PVC moulding materials - by heating gypsum with dilute dehydrating acid, neutralising with alkali- or alkaline earth-carbonate, removing water, and carbon di:oxide
IPC: C08K3/30
Filed: 1989-07-19
Abstract: Filler (I) for PVC moulding materials (II) is produced by heating finely-divided CaSO4.2H2O (III) with a dilute dehydrating acid (IV) to 50-190 deg.C and neutralising the residual acid with alkali carbonate or alkaline earth carbonate (V), with removal of the water and carbon dioxide produced. Amt. of (IV) used is below 20 (pref. 7-17) wt.% and acid content is 0.5-7 (pref. 1-3) wt.% w.r.t. total mixt.; (IV) is sulphuric or phosphoric acid or a mixt. mixt. is heated by direct ignition or by rapid heating using indirect heat exchangers with relatively high wall temps.; before neutralising, the heated mixt. is annealed at 50-19 deg.C for 0.3-24 hrs.; (III) is moist gypsum from flue gas desulphurisation and pref. (V) is CaCO3; a masking agent for Fe ions is added, pref. when the mixt. is neutralised; (I) is then coated, pref. with fatty acids and/or metal salts. USE/ADVANTAGE - (I) is used as a filler for (II).  The process overcomes the disadvantages of prior-art methods for the prodn. of anhydrous CaSO4 filler (i.e. acid-catalysed degradation of PVC due to residual acid, if the dehydrated prod. is not neutralised, or discoloration of mouldings if the acid is neutralised with Ca(OH)2); (I) has a high brightness value and is suitable for use in rigid PVC mouldings for window frames, etc. (reducing the requirment for expensive white pigments).
Patent DE-3931697-A1 (DE)
Title: Production system for filling and making tubes of substances - uses two strips passing through shaping and filling device and then welded
Inventor: DROSTE ERWIN
IPC: B65B9/02
Filed: 1989-09-22
Abstract: The fillable tubular hoses are made from two or more strips (1, 2) drawn off from a roll, passed through a shaping unit and then welded together. A filler pipe (8) can be provided in the shaping unit. The side edges of the strips which are to be joined together can be guided in slits (24, 25) so that an even overlapping is achieved before the edges are welded together. Slide tongues (26, 27) fixedly yet detachably connected to the moulding part serve as a support during welding. A first filled tubular hose can be covered by an overwrap in a similar process. USE - To provide sturdy filled tubes in the building, food, medical and chemical industries etc.
Patent DE-3931780-A1 (DE)
Title: Magnetic FET with four resistors forming bridge - has ferromagnetic strip layers of each resistor with one or several sections for widening linear working range
Inventor: DETTMANN FRITZ DR SC NAT
IPC: H01L43/08
Filed: 1989-09-23
Abstract: The four resistors are magnetic field dependent, each of ferromagnetic, single-axis strips (2) of series connection.  Over them are insulatingly fitted control strip conductors (3).  In order to widen the linear working range, the ferromagnetic strips of each resistor have regions (4), whose resistance value change in opposition to those of other strips, when current flows through the control strip conductor. Over such regions, the control strip conductor is smaller than over the remaining strip parts.  Pref. the ferromagnetic strips are fitted with conductive layer strips (5) whose longitudinal direction encloses and angle (6) with that of the ferromagnetic strips. USE/ADVANTAGE - For potential-free measuring of d.c. and a.c.  in frequency range up to 10 MHz, with improved linearity of transmission function.
Patent DE-3932227-A1 (DE)
Inventor: TANIGUCHI TOSHIHISA
IPC: G06F15/177
Filed: 1989-09-27
Abstract: In a multiprocessor system containing a main store MS, first-level working buffer stores WS, second-level buffer stores BS, and buffer store directories BAA, WAA, having a WS storage capacity which is a multiple of the BS capacity and having a structure in which each BS is used exclusively in a processor unit 63a-d, a plurality of flag bits associated with any WAA indicate whether or not data in the WS corresponding to a given processor unit is stored in the WS corresponding to another processor unit or in the BS connected thereto. When the WS data is rewritten, storage control is executed by retrieving the WAA of the WS and invalidating the data in the WS corresponding to the other processor unit and in the BS connected thereto, according to the values of the flag bits of an entry of the corresponding directory. Invalidation of data one BS block at a time, rather than a line of blocks at a time, is thus possible. <IMAGE>
Patent DE-3936508-A1 (DE)
Title: Individually adjustable backrest support - has protruding contact section attachable to backrest
Inventor: SOTIER-POPPE KARLA
IPC: A47C7/42
Filed: 1989-11-02
Abstract: The backrest support is pref. a detachable independent unit with a contact bearing section (3) which protrudes relative to the rest of the backrest surface. Its substantially active width is restricted to the shoulder-free dorsal vertebra area. The protruding contact section can be adjusted in height relative to the backrest and the length of the protruding section is pref. less than half the back rest height. USE/ADVANTAGE - An orthopaedically improved back rest support can be achieved for each different user.
Patent DE-3936885-A1 (DE)
Title: New di:alkyl aryl:methane-di:thio:carboxy-phosphonate(s) and salts - useful as radical deactivators for stopping radical polymerisation of diene(s) and vinyl aromatic cpds., etc.
Inventor: HOERPEL GERHARD DR
IPC: C08F2/42
Filed: 1989-11-06
Abstract: Arylmethane- dithiocarboxy -phosphonic acid dialkyl esters and salts are of formula (I), where R1-R4 are 1-10C alkyl or alkenyl, or up to 15C aralkyl; n, m, p, q, r = 0 or 1; A = H, NH4 or (pref.) alkali metal). (I) are produced by reaction of arylmethane-phosphonic acid esters (II) with dithiocarboxylating agents (III) in an aprotic solvent, in the presence of an alcoholate or hydride (IV). USE/ADVANTAGE - (I) are useful for the deactivation of radicals produced before or during the radical polymerisation of dienes and/or vinylaromatic cpds. and opt. other monomers. These deactivators do not form toxic nitrosamines and do not inhibit the vulcanisation of stopped rubbers; stopped lattices contg. (I) are not susceptible to discolouration.
Patent DE-3941868-A1 (DE)
Title: Use of sludges from waste water treatment plants - replace part of fuel in ore smelting furnaces and reduce fuel cost
Inventor: JUNKERS GERD DIPL ING
IPC: C21B5/02
Filed: 1989-12-19
Abstract: Sludges are burnt in shaft furnaces using for the smelting of ores, and esp. in blast furnaces used for smelting iron ore. The sludge may be dried and blown into the furnace in a powder form, of or may be powdered and sprayed into the furnace in a liq. form. In either case, the sludge is introduced into the furnace via nozzles in the furnace tubere or air inlet pipe. USE/ADVANTAGE - Sludges from water treatment operations have customarily been used as soil additives and fertilizeers, but the metallic element content of the sludges now makes this method of disposal less attractive because of the increasingly strict environmental constraints which apply to the disposal of these elements. Similar constraints apply to the disposal of the sludges as land-fill, since the harmful elements can find their way from the land-fill site into ground water etc. The method provides a means of disposing of the sludges completely and without threat of damages to the environment. Up to 30% of the fuel required in the furnace can be replaced by the sludge, and a considerable economy in fuel consumption is thus achieved.
Patent DE-3942119-A1 (DE)
Inventor: OGAWA AKIYUKI
IPC: G11B23/00
Filed: 1989-12-20
Abstract: A magnetic disk drive apparatus comprises a rotatable hub member (3) having a cylindrical body and a flange portion (5a) provided at one end of the cylindrical body, a spacer (31) disposed on a hub surface and fitted to said cylindrical body, and a clamping member (37) mounted to the other end of the cylindrical body. The apparatus further comprises a plurality of magnetic disks (10-13) disposed above the spacer and fitted to an outer periphery of the cylindrical body and a group of spacers (32-34) each interposed between adjacent two magnetic disks and fitted to the outer periphery of the cylindrical body. They are held between the flange portion and the clamping member through the spacer and spacers of the spacer group. The spacer has an outer diameter smaller than that of the flange portion. <IMAGE>
Patent DE-3942234-A1 (DE)
Title: Metal profile, multipart post - has profiled metal core clad by profiled wooden, or plastics components
Inventor: SCHEIWE PETER
IPC: E04H17/00
Filed: 1989-12-21
Abstract: The post (1) is at least partly of metal profile with the metal portion (2) forming the core. The latter is of round or polygonal cross-section, and is clad at least partly by profiled wooden or plastics components (3,3') fixed to it. The profiled metal core can be hollow or solid, and can be of zinc-coated iron, while the wooden cladding can be veneer. ADVANTAGE - Long service life and simulating a wooden post apparance.
Patent DE-4001662-A1 (DE)
Title: Marking mineral oil with basic dyestuff contg. at least 2 amino gps. - undergoes bathochromic shift and increase in extinction on adding protonic acid
Inventor: RIEDEL GUENTHER DR
IPC: C10L1/00
Filed: 1990-01-22
Abstract: Marked mineral oils are marked with basic dyestuffs (I) contg. at least 2 (substd) amino gps. which undergo a bathochromic shift in the absorption max. and increase in extinction on addn. of a protonic acid and opt. a Zn, Al or Sn halide. (I) are triarylmethane, xanthene or azo dyestuffs.
Patent DE-4002397-A1 (DE)
Title: Positive photosensitive mixt. contg. hydroxy-aralkyl acrylate polymer - and sensitiser, useful in printing plate mfr. and as photoresist
Inventor: ELSAESSER ANDREAS DIPL CHEM DR
IPC: G03F7/039
Filed: 1990-01-27
Abstract: Positive-working radiation-sensitive mixt. consists of a polymeric binder, which is insol. in water but soluble in aq. alkaline solns., and a 1,2-quinone-diazide and/or a combination of a cpd. forming a strong acid where exposed to actinic radiation and a cpd. with hydrolysable C-O-C linkage(s). The binder is a polyer with (poly)hydroxyaralkyl (substd.) acrylate units of formula (I): Y = a (poly)hydroxyaralkyl gp. of formula (II): R1 = H, halogen, CN or alkyl; R2 and R3 independently = H, alkyl or aryl; R4, R5 and R6 independently = H, halogen, alkyl, alkoxy or aryl; X = the atoms needed to complete a mono- or polynuclear carbocyclic aromatic ring system; n = 1, 2 or 3. Pref. Y = 4-hydroxybenzyl, opt. with 1-4C alkyl or halogen substit(s). in the 3- and/or 5-positions; or 2-hydroxybenzyl methacrylate, opt. with a 1-4C alkyl or halogen substit. in the 3-position and/or a 1-4C alkyl, halogen or opt. alkyl-, alkoxy- or halogen-substd. aryl substit. in the 5-position. The binder also contains unit(s) of formula (III): -(-C(R7)(R8)-C(R9)(R10)-)- (III); R7 = H; R8 = H or COOH and R9 = alkyl, alkoxy, alkoxycarbonyl, acyl, acyloxy, aryl, aryloxycarbonyl, HCO, CN, COOH, OH or aminocarbonyl; esp. 1-4C alkyl, 1-8C alkoxy, 2-13C alkoxycarbonyl, 2-18C acyloxy, 6-10C aryl or 7-11C aryloxycarbonyl, in which the aryl gps. may have OH substits.; or R8 + R9 = a carboxylic anhydride gp. or opt. alkyl-substd. imide; R10 = H, halogen or alkyl.
Patent DE-4004283-A1 (DE)
Title: Recycling system for glass - has breaker unit movable over chambers of collecting container
Inventor: WERNLI ROLF
IPC: B65F1/14
Filed: 1990-02-13
Abstract: The recycling system for bottles supplies the bottles for selective pulverisation to a breaking machine where they are picked up by a portable collecting device.  The breaking device (1) is set in front of the movable collecting device (2) which can be designed as a container detachably fixed on a frame. The container and frame can be designed with a lift mechanism.  The breaking device and collecting unit can be designed as separate units.  The collecting device can be divided into several collecting chambers, where the breaking device can be moved relative to the different chambers. USE - For the effective recycling of waste glass containers and bottles.
Patent DE-4012666-A1 (DE)
Title: Display device for vehicular traffic control at intersections - uses PC programmable counter to display time before light changes
Inventor: SCHUH GUENTHER A DIPL ING
IPC: G08G1/096
Filed: 1990-04-21
Abstract: The display (1) shows figures (5), controlled by a counter controller operating in countdown in which display time, light change, mode, and either R or G for red/green resp. phases of traffic light. Preferably the controller may be programmable under control of a personal computer with keyboard and screen. Additionally control may be remote using antenna and radio receiver.
Patent DE-4015232-A1 (DE)
Title: Central heating system venting and water level monitor - uses float to operate release device for vent valve and current cut=out
Inventor: WILHELM FRANK
IPC: F16K24/04
Filed: 1990-05-11
Abstract: The monitoring device comprises a housing (11) through which the circulated hot water is passed. A float (12) is displaced between end positions to operate a release element (17,19) for a vent valve (28). The operating supply for the central heating system is interrupted upon detection of an insufficient quantity of water, via a cut-out switch (32). The latter is provided as part of a switch device (25) operated via the release element (17,19) for the vent valve (28). ADVANTAGE - Simple fitting to existing central heating system.
Patent DE-4015443-A1 (DE)
Title: Continuously operating filter for varnish - in which filters are changed over automatically
Inventor: SCHIELE STEFAN GUIDO
IPC: B01D29/11
Filed: 1990-05-14
Abstract: Filter unit for liq. or pourable materials is designed for continuous operation. Unit has at least two filters with filter elements which can be cleaned or replaced. Pressure gauge measures pressure across filter and it sends signals to motors which change over the filters automatically, by opening and closing valves at inlet and outlet. USE/ADVANTAGE - For varnish and water-proofing machines used in manufacture of wood products. Filters can be changed over and elements can be replaced without stopping the machine.
Patent DE-4019452-A1 (DE)
Title: Knock-off roller for separating moving paper sheets - has several eccentrics in hollow roller producing faster operating speeds
Inventor: ARNDT WALTER
IPC: B65H19/26
Filed: 1990-06-19
Abstract: The knock-off roller for separating continuous paper sheets has several evenly shaped accurately aligned eccentrics (10) set in the hollow roller. The even shape and accurate position of the eccentrics makes it possible to evenly advance and evenly return the knock-off blade (13). The blade sliders (12) can be locked by the eccentrics during the winding process so that the sliders cannot automatically bring the blades into the knock-off position. USE/ADVANTAGE - Faster operating speeds of paper sheet separator.
Patent DE-4024615-A1 (DE)
Title: Photographic paper or film strip cutter - has drive moving mobile blade up to stop and holding it there for specified period
Inventor: STEINLEHNER FRIEDRICH-K
IPC: B26D1/30
Filed: 1990-08-02
Abstract: The continuous strip of photographic paper or film is cut by a machine with a fixed and a moving blade. The machine has a base plate (1) which supports the fixed blade (3). The moving blade (7) is guided by two pillars (16), which are fixed to opposite ends of the base plate. One end of the moving blade is supported on a spring (18). The moving blade is pressed downwards by an eccentric drive (22). The spring prevents the downward movement of the end of the blade, to which it is attached, until the opposite end of the moving blade makes contact with the fixed blade. The moving blade then swings about the initial point of contact until it is in contact with the fixed blade over its entire  length. ADVANTAGE - Compact design and long service life.
Patent DE-4025436-A1 (DE)
Inventor: STEIN CHRISTIAN DIPL ING
IPC: H01L41/09
Filed: 1990-08-10
Abstract: A bending transducer (1) has a graphite fibre layer (2) glued by means of an epoxy resin (8) between two piezoceramic layers (10, 12) on both sides of which are arranged electrodes (14, 16). The graphite fibre layer (2) is longer (l) than both piezoceramic layers (10, 12). On the free part of this layer (2) is glued a copper foil (18) upon which is arranged a surface for applying a soldering contact (16). In this way it is relatively easy to bond the electrodes (14i, 16i) that lie inside the transducer.
Patent DE-4030782-A1 (DE)
Title: Optical interface for data handling devices -  uses opto-electronic coupler with optical fibre link for galvanic separation
Inventor: FINK REINHARD DIPL ING
IPC: H04B10/25
Filed: 1990-09-28
Abstract: The optical interface (15) has an optoelectronic coupler (17, 18, 21, 22) inserted in the data lines between the data handling devices (1, 5) for providing galvanic separation. The optical transmission and reception elements within the optoelectronic couplers (17, 18, 21, 22) are coupled via at least one optical fibre link (19, 20), for suppressing noise signals. Pref. 2 optical transmitters (17, 22) and 2 optical receivers (19, 20) are coupled via respective optical fibre links (19, 20), to allow bidirectional data transmission. USE - For computer measuring system.
Patent DE-4038058-A1 (DE)
Title: Installation to distribute rolls of textiles on pallets - with number of sloping surfaces arranged in sawtooth shape above pallets, using gravity to transport rolls
Inventor: COLSMAN JOACHIM
IPC: B65G65/00
Filed: 1990-11-29
Abstract: Appts. for distributing rolls of textiles on to pallets, features a number of sloping surfaces positioned in a saw-tooth shape in a sequence above the pallets, which are arranged in a row. Each surface declines from a top edge located on a first side towards a bottom edge located on a second side. A connecting piece with an L-shaped cross-section is positioned between the top edge of each sloping surface and the sloping surface adjoining the first surface on the first side. One connecting piece side adjoins the bottom edge of the above neighbouring surface. The connecting pieces can be tilted upwards through adjusting motors round an axis running along the top edge. ADVANTAGE - The installation is simple as the textile rolls are largely transported by gravity.
Patent DE-4103603-A1 (DE)
Title: Position sensor detecting linear or rotary movement - has permanent magnet attached to moving part displayed relative to stationary core with associated measuring coil
Inventor: HERMANN MICHAEL
IPC: G01D5/20
Filed: 1991-02-07
Abstract: The position sensor has an elongated magnetic coil (3, 4, 5) with a stationary soft magnetic core (6) having a small cross section relative to its length. The moving part has attached permanent magnets (8) displaced in the longitudinal direction of the magnetic core (6) to obtain a position-dependent magnetic saturation with evaluation of corresponding electrical values obtained form the measuring coil (3, 4, 5). The magnetic core (6) has a channel cross-section in the form of a V or U with the permanent magnet (8) displaced between its opposing arms (7) within the measuring coil (3, 4, 5). Pref. the latter is carried by a cylindrical former (2) fitted around the core (6). ADVANTAGE - Reduced error due to external magnetic fields.
Patent DE-4106199-A1 (DE)
Title: Invisible locking system for door, safety box, etc. - has magnetic release of levers which are balanced on upright pivots about which they rotate in opposite directions to operate latch
IPC: E05B47/00
Filed: 1991-02-27
Abstract: A two-part casting (2) of pref. antimagnetic material is rotatable about a pivot (4) integrated with a main lever (1), whose upper arm carries a magnet unit (18) movable into the open position by an external magnetic key. Rotation within an angle (alpha) is feasible when security pins (6) in the lower casting (2) are released by a congruent key. The lever (1) is coupled (11) to another (10) which is similarly counterbalanced on a parallel pivot (12). USE/ADVANTAGE - For strong-room doors, system operates without significant friction losses and requires only movement of lever of light wt. alloy.
Patent DE-4108388-A1 (DE)
Title: Detecting unit for contactless determination of at least two positions of switching element - has magnetically or optically working transmitter and receiver and transmitter or receiver brought into positions to be detected by switching element
Inventor: HENNIGS GERHARD DIPL ING
IPC: G05G9/047
Filed: 1991-03-15
Abstract: The positions to be determined are provided respectively with assigned receivers (8,9,10) or transmitters. The transmitter (4) or the receiver is movable by the switching element (2) on a curved surface. The receivers or transmitters assigned to the positions to be determined are arranged on one platinum board (7). Conducting elements (5,6) for magnetic flux or light are arranged between the transmitter (4) or the receiver, found in the position to be determined, movable by the switching element, and the assigned receiver or transmitter. Ferromagnetic screws (31,33,35) are used as conducting elements and are arranged in a carrier (24). The switching unit (2) can be a gear selector for a drive. ADVANTAGE - Type unit improved so that construction is simplified and assembly of sensors (32,34,36) is easier.
Patent DE-4119435-A1 (DE)
Title: Frame corner connection for electrical appts. - using fixing to secure profile rails to metal corner piece
Inventor: MARCH FRANZ DIPL ING
IPC: H05K7/18
Filed: 1991-06-13
Abstract: The corner connection uses a metal corner piece (1) to which the horizontal and vertical metal profile rails (2, 3, 4) are secured via fixing screws inserted in threaded bores (8, 13) in the profile rails (2, 3, 4). The fixing screws have associated toothed washers (15) fitted between the corner piece (1) and the profile rails (2, 3, 4) and between the corner piece (1) and the fixing screws, with their teeth biting into the surface of the profile rails (2, 3, 4), or the corner piece (1). Pref. the washer (15) is housed in a recess around the bore (11) for the fixing screw. ADVANTAGE - Uses mass produced components.
Patent DE-4119961-A1 (DE)
Title: Sludge storage and transport carrier - has water tight trough enclosing lower part of container guarding against leaks
Inventor: SIRCH MANFRED
IPC: B65D88/02
Filed: 1991-06-18
Abstract: The walls (24,26) and base (28) of the trough (22) are each set spaced from the container walls and base (12,14,16,18,20). The interspace (30) between the bases communicates with the circumferential ring space (32) between the container walls and trough walls. Round the top edge of the ring space there is a spray guard to protect against rain. The container (10) can have an outer circumferential flange (36) for resting on the support flange (34) of the trough. ADVANTAGE - The lower part of the container is protected against mechanical damage. Any leaks can be indicated by a fluid sensor and dealt with.  Useful for transporting dangeous waste.