baber/WOPTO huggingface dataset:
Patent DE-4207362-A1 (DE)
Title: DC drive emergency braking circuit - has pulse controller supplying excitation current during emergency braking with extra controller for armature current
Inventor: WOLF HEINZ DR ING
IPC: B21B33/00
Filed: 1992-03-04
Abstract: The braking circuit inserts one or more braking resistances into a motor armature circuit for emergency braking of a DC drive. The DC motor excitation current motor during the emergency braking is supplied by a pulse controller fed by the armature voltage. The excitation current is controlled so that in the whole speed range, the max. possible magnetic flux is set up in the magnetic circuit of motor. A braking current controller is provided to keep the current constant. The excitation current controller allows the armature voltage to be held constant in weakened magnetic field operation and the excitation current is held constant in the armature current controlled operation. USE/ADVANTAGE - For e.g. winding reel motor, and-or main drive of cold rolling mill. Inexpensive braking for high loads, guaranteeing full braking torque without use of auxiliary voltage sources. Motor is stopped as quick as possible on break-down, minimising possible damage to end product.
Patent DE-4209174-A1 (DE)
Title: Radial shaft sealing ring - has circumferential corrugated sealing face which is trimmed and sinusoidal over several phases
Inventor: WOLF FRANZ-JOSEF
IPC: F16J15/3244
Filed: 1992-03-20
Abstract: The ring comprises a radially outer elastomeric ring (2) stiffened with an elastic bending cage (1). The ring has an internal lip (3) with a circumferential corrugated sealing face (4). The sealing face is trimmed, and follows as sinusoidal function with two, three or four full 360 degree phases. The wave of the corrugated sealing lip varies from 0.15 to 0.5 mm. USE/ADVANTAGE - Seals against bypassing along a rotating shaft. Dynamic seal with increased reliability and reproducibility performance.
Patent DE-4210555-A1 (DE)
Title: Camera front attachment optic - has pivoting colour filter for remote viewing of welding process
Inventor: GUMB LOTHAR
IPC: G03B17/12
Filed: 1992-03-31
Abstract: In a front attachment optic for a camera, for remove observation in welding process control (i) the optic images the welding location and its immediate surroundings with a predetermined magnification by means of an adjusted stationary aperture; and (ii) the optic has a special cloured glass filter which, at the beginning of a welding operation, automatically pivots into the imaging beam path and, after interruption of the welding operation, pivots back into the rest position. ADVANTAGE - The optic allows viewing of the edges to be welded, examination of the welded seam and uninterrupted observation of the welding operation with the weld pool, additive wire advancement and weld pool solidification, e.g. in automatic TIG welding. It allows measurement of weld seam geometry before welding for input to a data processor. It is relatively inexpensive, provides adequate depth of focus of image information during both the non-welding and welding phases, only requires a conventional low power lamp, is mechanically very simple and has small dimensions to allow incorporation of the camera system in miniature welding heads.
Patent DE-4212264-A1 (DE)
Title: Catalytic prodn. of formaldehyde condensn. prod. - using meso-ionic heterocyclic catalyst giving e.g. glyceraldehyde
Inventor: GEHRER EUGEN DR
IPC: C07C45/75
Filed: 1992-04-11
Abstract: Prepn. of condensn. prods. of formaldehyde is effected using a mesoionic catalyst of formula (I), where X = N,P or CR3; Y = O, S or Se, or NR4 or PR5; Z = N, P or CR6; R1,R2 = 1-30C alkyl, opt. substd. aryl, opt. substd. aralkyl, heteroaryl and/or nitrilo; R3,R6 = H, O, 1-3c alkyl, opt. substd. aryl or aralkyl, opt. substd. heteroaryl, hydroxyl, nitrilo and/or NH2; R4,R5 = O, 1-30c alkyl, opt. substd. aryl, aralkyl or heteroaryl, hydroxyl, nitrilo or NH2; or the gp. R2 forms a 2-5C alkylene or alkenylene, or a 6-14C arylene, bridge with R4 or R5; or the gp. R6 forms a 3-4C alkylene or alkenylene bridge with R4 or R5. Also claimed is a mesoionic tetrazolium cpd. of formula (II). USE/ADVANTAGE - The catalyst gives a different spectrum of prods. compared to the known thiazolium catalysts, esp. glycoaldehyde and glyceraldehyde, useful for the prepn. of ethylene glycol, glyoxal, and glycerine. In an example, 4 g of paraformaldehye, 0.201 g of nitron, 15.8 g of ethyl acetate and 0.2 g of molecular sieve were heated at 80 deg. C. for 15 mins. There was a conversion of 29.4 %, with a selectivity of 86.2 % for glycoaldehyde and of 10.1 % for glyceraldehyde.
Patent DE-4212660-A1 (DE)
Inventor: SATO OSAMU
IPC: G03B7/01
Filed: 1992-04-15
Abstract: Exposure control system for photo apparatus in which a pair of exposure factors (Tv, Av), comprising a shutter speed (Tv) and a diaphragm aperture (Av), can be fixed manually and independently. Moreover, in the exposure control system, an exposure value determined as a function of the exposure factors (Tv, Av) can be locked, and one of the exposure factors (Tv, Av) can be modified, being based on the locked exposure value when the other exposure factor (Av, Tv) is modified by the associated manual adjustment means (115, 114). <IMAGE>
Patent DE-4217861-A1 (DE)
Title: Water-ballasted tarpaulin - has tubular beads formed by gluing or welding plastics sheet edges and filled with water
Inventor: WEBER HILAR
IPC: E04H4/10
Filed: 1992-05-29
Abstract: The tarpaulin comprises a covering sheet (1) preferably of watertight plastics and in one or two layers. By gluing or welding, tubular beads are formed along two or more of its edges, or all the way round it. These are filled with water acting as ballast, and which can be drained off afterwards. It can be held taut by the ballasted edges and passed round a supporting roller (3) under the roof. The gap between roller and roof is sealed off airtight, the tarpaulin extending obliquely downwards and bearing against the outer edge of the balustrade. USE/ADVANTAGE - To protect a roofed balcony. Needs no tie ropes or other securing devices.
Patent DE-4220474-A1 (DE)
Title: Plastics foil packing bag with handle - is made from endless supply of foil tube with lengthwise sealing seams and easy access closable filling opening
Inventor: SCHWINN GEORG
IPC: B65D85/07
Filed: 1992-06-23
Abstract: The bag is made from a foil tube sealed lengthwise by one or two seams.  The front and back surfaces (1) are connected top and bottom by uninterrupted folded bases to form the base and lid parts.  The closable filling opening is arranged in a side part prior to filling and the handle (5') is made in one or more parts fixed  to the top. The handle can be formed from two wide attachments and a narrower centre part so that the attachments extend over the entire width of the front and back surfaces to which they are fixed by narrow connector strips. ADVANTAGE/USE- Suitable for packs of nappies. Economical use of packing material with strong handle design.
Patent DE-4220767-A1 (DE)
Title: Methylene-bis-(N,N-di:alkyl:di:thio:carbamate prodn. for elastomer and lubricant - by reacting sodium-N,N-di:alkyl:di:thio:carbamate(s) with methylene chloride
Inventor: ROETHLING TILO DR
IPC: C10M177/00
Filed: 1992-06-25
Abstract: Prodn. of methylene-bis-(N,N-dialkyldithiocarbamates) comprises reacting highyly concentrated solns. of Na-N,N-dialkyldithiocarbamates (A) with methylene chloride (B). 0.55-0.6 mol (B) are used per mol (A). (A) is produced from the Na salt of N,N-dialkyldithiocarbamide acid and contains an excess of 0.05-0.2 mol NaOH per mol carbamate. During the course of the reaction, the temp. increases from room temp. to 80 to 90 deg.C. USE/ADVANTAGE - The methylene carbamates can be used as additives for elastomers, lubricants or asphalt compsns. Highly pure prod. is obtd. In an example, a starting mixt. of (A) and (B) was stirred at room temp., the reaction temp. was raised over 1 hr. to 50-60 deg.C; then to 80 deg.C over 2 hrs., and subsequently heated to 80 deg.C over 2 hrs., and subsequently heated to 90 deg.C for a short time to complete the reaction. 1-2 wt% of a filtering auxiliary agent was added to the highly concentrated sol. of (A) before reaction, the soln. was filtered, and then reacted with methylene chloride. 1-2 wt% Ca(OH)2 was added to the methylene-bis-(N,N-dialkyldithiocarmate) and then filtered.
Patent DE-4223067-A1 (DE)
Title: Micromechanical flow limiter with multilayer structure, e.g. for medical infusion system - has intermediate diaphragm layer which deflects w.r.t. amount of flowing medium, and blocks flow for large flow amounts
Inventor: JOSWIG JUERGEN DIPL ING
IPC: G05D7/01
Filed: 1992-07-14
Abstract: The micromechanical flow limiter is formed from three layers (1,2,3) fixed on top of one another. The middle layer (2) functions as a diaphragm and comprises a flat structure with a central opening (8). On both sides of the opening, walls (9,10) block or open the flow path. The flow limiter operates passively, without an actuator. The limiter is controlled by the prevailing pressure differences. In order to increase its reliability, additional micromechanical elements may be coupled to the multilayer structure. USE - For preventing back-flow in medical dispensing systems. Also for laboratory, motor vehicle, aircraft or space vehicle use or for pneumatic controllers.
Patent DE-4225224-A1 (DE)
Inventor: WEUTHEN MANFRED DR
IPC: C09K23/56
Filed: 1992-07-30
Abstract: Storable non-ionic tensides with improved crystallisation resistance are obtained if, to aqueous preparations containing alkyl and/or alkenyl oligoglycosides of formula (I): R<1>O-[G]p in which R<1> is a linear alkyl and/or alkenyl radical with 6 to 22 carbon atoms, G is a sucrose radical with 5 or 6 carbon atoms and p represents numbers from 1 to 10, are added crystallisation moderators selected from the group consisting of a) alkyl oligoglycosides based on short-chained primary alcohols, b) alkyl oligoglycosides based on Guerbet alcohols, c) alkyl oligoglycosides based on polyoles, d) short-chained primary alcohols, e) fatty alcohol polyglycol ethers, f) polyethylene glycols, g) glucose and h) iron-(III)-ions.
Patent DE-4226171-A1 (DE)
Inventor: KRUEGER KLAUS
IPC: F01N13/18
Filed: 1992-08-07
Abstract: An exhaust manifold contains a cylinder flange (1) intended for fixing on a cylinder head and a combined flange (6) directly connected to the cylinder flange (1). The connection can be made in particular by the use of a common, angled plate. The gas-carrying inner pipe (5) is covered by a hood (9), formed as a one-piece drawn part, which is welded to the plate (2). <IMAGE>
Patent DE-4237512-A1 (DE)
Inventor: WIRTGEN REINHARD
IPC: E01C23/00
Filed: 1992-11-08
Abstract: The invention relates to a process and an apparatus for stabilising or renovating damaged roadways, in which the road superstructure is milled away and the material is comminuted in situ and re-installed. To the surface material obtained in this manner, binders comprising cement, cement slurries, water and/or bitumen emulsion and/or premixed additive mixture and/or mineral components with the required grain size and amount are admixed and the material prepared in this manner is re-installed to form the road surface.
Patent DE-4238414-A1 (DE)
Title: Hand pushed lawn mower with enclosed motor driven cutter - is mounted on four wheels and has adjustable cutting levels together with outlet for cuttings at side
Inventor: ONO NAOTOSHI
IPC: A01D34/74
Filed: 1992-11-13
Abstract: Between the front and rear wheels (Wf,Wr) a motor (E) is mounted to drive the rotary cutter blade (4) on a crank shaft (5), and is covered by a casing (1). A height adjuster with an activator (36) sets the cutting level, and is mounted on the upper rim of the casing on the opposite side of the outlet (2) for grass cuttings. A finger hold (38) opens on one side of the casing along the activator. ADVANTAGE - The height adjustment for the cutter can be worked simply by the operator.
Patent DE-4239982-A1 (DE)
Title: Ribbon cable for telecommunications, computer and auto equipment - has flake graphite conductors in thermoplastic tape, reinforced by metal or fibre mesh giving lightweight non-corrosive assembly
Inventor: KANNO TOSHIAKI
IPC: H05K1/09
Filed: 1992-11-27
Abstract: A ribbon cable (A) is made up of three conductors (1) of rectangular cross-section each composed of flake graphite. The conductors are mutually parallel and are encapsulated in the two strips of electrically insulating material e.g. PVC, polyester etc. (2) which are bonded together to form the ribbon. The composite assembly may be strengthened by incorporating a mesh of metal, glass or carbon fibre, and an alternative construction has a single central graphite conductor (10) between tinned copper conductors (3) of similar rectangular cross-section. USE/ADVANTAGE - Convenient flat conductor with many electrical applications for current up to few tens of milliamps. Lightweight, corrosion resistant and has good conductivity which is virtually unaffected by temp. rise.
Patent DE-4244011-A1 (DE)
Title: Height adjuster for vehicle seat belt fitting - uses spindle and slider with threads which lock in event of deceleration.
Inventor: WATANABE YASUTAKA
IPC: B60R22/20
Filed: 1992-12-24
Abstract: Height adjustment device for a roughly shoulder level anchor point for a vehicle seat belt having a spindle (40) rotating about a vertical axis in a section of a side wall. The seat belt passes through an anchor fitting (22) held by a bolt (54) in a slider with a threaded section (78) which normally is not in contact with the threaded section (41) of the spindle. A sudden deceleration of the vehicle causes the two threaded sections to engage each other. USE/ADVANTAGE - Vehicle seat belt anchor point which is freely adjustable, inexpensive to produce, but which locks securely to the event of a sudden deceleration.
Patent DE-4303515-A1 (DE)
Title: Method and device for increasing the nappiness of fibre yarns
Inventor: MUSTERER ROLF
IPC: D01H1/115
Filed: 1993-02-06
Abstract: Method and device for increasing the nappiness of fibre yarns, in that, on the running thread, the fibre ends looped around the yarn core as well as fibre ends and loops bearing on the yarn core are spread by means of air.
Patent DE-4309389-A1 (DE)
Title: Fibre=optic coupling device e.g. for central lighting system in vehicle - has internally reflecting segmented rod inserted between coplanar ends of optical fibres and focal plane of light source
Inventor: DAVENPORT JOHN MARTIN
IPC: G02B6/42
Filed: 1993-03-23
Abstract: The bright light from a lamp (18) is concentrated by a concave reflector (14) and a plane mirror (22) into the entry pupil (12A) of an optical coupler (12) incorporating a segmented rod (24) of quartz or suitably transparent plastics. The segments (26) extend throughout the length of the rod and are held together by a hollow sleeve (28) so that their exit faces abut against the ends of optical fibres (16) for distribution of the light to different places requiring illumination. USE/ADVANTAGE - In e.g. motor vehicle, display and domestic lighting installations. Conventional one-piece cylindrical coupling element can be used without elongation in axial direction.
Patent DE-4311249-A1 (DE)
Inventor: GROENBAEK JENS
IPC: B21C25/02
Filed: 1993-04-06
Abstract: PCT No. PCT/DK94/00130 Sec. 371 Date Sep. 20, 1995 Sec. 102(e) Date Sep. 20, 1995 PCT Filed Mar. 28, 1994 PCT Pub. No. WO94/22607 PCT Pub. Date Oct. 13, 1994A deforming tool having a die and prestress ring for the extrusion of a workpiece. The prestress ring being constructed so that the radial prestress exerted by it on the die in a region of transition from one to the other of two converging inner faces of the die, which together form an internal angle of less than 180 degrees, and/or in the region of a sudden transition from a low to a high value of the pressure exerted by the workpiece during its deformation radially on the die, is less than in the regions adjacent to the transition.
Patent DE-4313222-A1 (DE)
Title: Method for producing Bohemian dumplings which are ready to serve
Inventor: GALLERSDOERFER GEORG
IPC: A23L7/109
Filed: 1993-04-22
Abstract: The dumplings shaped by a machine are cooked, then cooled and subsequently vacuum-packed. In order to extend the shelf life of the packaged dumplings, it is proposed to flush them with nitrogen or carbon dioxide during the vacuum-packing process.
Patent DE-4313384-A1 (DE)
Title: Electromagnetic valve for vehicle hydraulic brake system with ABS or antislip function - forms either 2/3- or 3/3-way valve and has pressurised areas within valve approximately equal so that net axial force is low
IPC: F16K39/02
Filed: 1993-04-23
Abstract: The magnetic valve consists of a cylindrical housing (21) in a yoke (22). An expanding ring (27) at the base of the yoke is compressed during assembly and provides positive location. The valve seat (23) is positioned in line (21c) between pressure chambers (21a,21b). The assembly is seated by airtight O-ring seals (25a, 25b, 25c). The valve actuator consists of armature (24b), piston 24(c), tensioning spring (24e) and an actuator coil (28). USE/ADVANTAGE - Hydraulic pressure control in ABS car system. Minimised component count and simple, light construction.
Patent DE-4313864-A1 (DE)
Title: Process and apparatus for producing a magnetic recording carrier
Inventor: NAGLER EBERHARD
IPC: G11B5/845
Filed: 1993-04-28
Abstract: The invention relates to a process and an apparatus for aligning finely divided magnetic particles of a recording carrier, the magnetic recording carrier being guided with its uncoated rear carrier side over the cylindrical outer surface of a rotatable drum, the surface of which is provided uniformly with electromagnets or permanent magnets whose polarity is designed such that the magnetic particles are aligned in the way intended for their use. The magnets are embedded in a casting compound and the cylindrical outer surface can be worked smooth by customary treatment methods. Arranged at the outlet of the drum is an iron wedge for screening the magnetic field lines. <IMAGE>
Patent DE-4319837-A1 (DE)
Title: Washer for bed-feathers, down and fibres - introducing compressed air into vertical syphon-type pipe in centre of tank to circulate wash water
Inventor: JUNGBAUER LEOPOLD
IPC: B68G3/10
Filed: 1993-05-26
Abstract: In a procedure for washing bed-feathers, down, fibres and similar material, the washing and rinsing water in the tank is circulated with compressed air by means of a sort of syphon. A vertical tube in the water protrudes above the water level and is supplied with the air (at a pressure or flow rate controlled by a valve) near its base. The rising air sucks water into the bottom of the tube, which then passes with the air up the tube and out over the top. There is an extruded metal cup near the base of the water tank forming a false bottom, and a similar inverted one beneath the lid of the tank. ADVANTAGE - Has low water and energy consumption.
Patent DE-4321402-A1 (DE)
Title: Paper-making machine press section - has a smooth continuous surface as final unit to transfer web onwards in the prodn. of thin paper
Inventor: STEINER KARL DR
IPC: D21F3/04
Filed: 1993-06-26
Abstract: The press section of a papermaking machine, for the prodn. of thin paper, has a simple blanket press, as the final unit with a smooth continuous surface on the side carrying the paper, which transfers the paper web in the absence of a free path to the next section of the papermaking machine. Pref. papermaking machine section following the press unit is a drying cylinder. A penultimate gap at the smooth continuous surface is formed by a roller with a blanket mantle, and the smooth surface, using a suction roller with a blanket mantle. USE/ADVANTAGE - The appts. is for mfg. thin papers with one side, or tissue. The assembly gives the transfer action on the web to the section after the press units, with lower equipment costs, and reduced web breakage.
Patent DE-4321722-A1 (DE)
Title: Electrical drive for direct coupling to mounted shafts of laboratory equipment
Inventor: WUNDERWALD MANFRED DR
IPC: H02K21/14
Filed: 1993-06-30
Abstract: The invention is based on the object of specifying an electrical drive in which the use of gears is avoided and by means of which simple centring is achieved with little equipment outlay. The object is achieved according to the invention in that the rotor of the electrical drive has a cavity along its entire axis in which cavity a coupling element is located for detachable connection to an equipment shaft, and in that a further coupling element is located in the stator housing, for detachable connection to the bearing sleeve of the equipment shaft. The invention relates to an electrical drive for direct coupling to mounted shafts of laboratory equipment, in the case of which equipment a rotor is arranged in a stator housing, with a winding. <IMAGE>
Patent DE-4322209-A1 (DE)
Title: Clamping device for tubes made of plastic
Inventor: CONRADI BODO
IPC: A47K5/00
Filed: 1993-07-03
Abstract: The invention relates to a clamping device for tubes made of plastic. The object of the present invention is to provide a possibility of holding a tube in a rolled-up position. The invention consists in the provision of a holder consisting of two walls which are firmly connected to one another and can be slipped onto the folded end of the tube. For transportation to the customer, the clamping device can be fitted laterally onto the tube, so that it does not take up any additional space in the packaging provided for said transportation.
Patent DE-4322495-A1 (DE)
Title: Piece of sleeping furniture
Inventor: SCHNITZLER ALOIS
IPC: A47C17/22
Filed: 1993-07-06
Abstract: The invention relates to a piece of sleeping furniture which includes a frame (1) capable of being mounted on a level supporting surface and intended for supporting a mattress (4). At the head and/or foot of the frame there are provided means (6, 7; 10) to which a sheet (8) or the like in which to sleep and/or a cover (12) are detachably fastened at one of their longitudinal ends and can be wound up about an axis of rotation running parallel to the transverse axis of the piece of sleeping furniture. <IMAGE>
Patent DE-4325436-A1 (DE)
Title: Method for regulating photovoltaic solar systems and circuit arrangements for carrying out the method
Inventor: ULBRICH GUENTER DIPL ING
IPC: G05F1/67
Filed: 1993-07-29
Abstract: The invention relates to the use of maximum power point regulation for the optimum operation of photovoltaic solar systems. According to the invention, the MPP is determined by measuring the short circuit current, measuring the idle voltage and comparing the characteristics by means of the computer control, preferably an SPS, and the dynamic load impedance of the load is set by pulse width modulation by means of a control signal output by the SPS and thus the maximum power is taken from the solar module. <IMAGE>
Patent DE-4330441-A1 (DE)
Title: Leg fixing arrangement for worktable eg computer desk
Inventor: PELTONEN HANNU
IPC: A47B21/00
Filed: 1993-09-08
Abstract: Leg fixing arrangement for worktable eg computer desk has bracket plates fixed to legs that engage tubes fixed to underside of table and apply retaining force