baber/WOPTO huggingface dataset:
Patent DE-3916590-A1 (DE)
Inventor: SCHMIDT MICHAEL DIPL ING
IPC: E04F11/02
Filed: 1989-05-22
Abstract: PCT No. PCT/EP90/00321 Sec. 371 Date Oct. 26, 1990 Sec. 102(e) Date Oct. 26, 1990 PCT Filed Feb. 26, 1990 PCT Pub. No. WO90/10129 PCT Pub. Date Sep. 7, 1990.The invention concerns a flight of stairs with a multiple of steps-where each step is firmly connected at least at one lateral end with the subsequent step by two vertical members, and where the bottom and top steps (22, 12) are resting on an intermediate floor (26, 24), a landing beam or a similar member, and where at least one lateral end of each step (12 to 22) is arranged within a square support-consisting of two horizontal and two vertical members (40, 42; 44, 46) which, together, form a stair stringer-in such a manner that each step is supported by its assigned horizontal member beneath it, and that each horizontal member (40, 42) is extended beyond a vertical member (44, 46), so that the extension (32) of the upper horizontal member (40) forms the lower horizontal member of the next step (12) above, while the extension (48) of the lower horizontal member (42) forms the upper horizontal member of the next step (16) beneath it, and where-at least on one side-a vertical member can be replaced by a spacer (206, 208, 306) or by the actual step (124, 128, 130) which, in this instance, must-at least on that side-be of the same thickness as a step height.
Patent DE-3923026-A1 (DE)
Title: Dehydrogenation catalyst, process for the production thereof and use thereof
Inventor: BUECHELE WOLFGANG DR
IPC: B01J23/88
Filed: 1989-07-13
Abstract: Catalyst, in particular for the dehydrogenation of hydrocarbons to give olefinically unsaturated hydrocarbons, which essentially comprises in the sintered, ready-to-use state   a) 60 to 95% by weight of at least one iron compound, calculated as Fe2O3; b) 1 to 25% by weight of at least one potassium compound, calculated as K2O; c) 0.1 to 5% by weight of at least one compound of chromium or of aluminium, calculated as Cr2O3 or Al2O3; d) 0.1 to 5% by weight of at least one compound of molybdenum or tungsten, calculated as MoO3 or WO3; e) 0.1 to 2.5% by weight of a vanadium compound, calculated as V2O5;   f) 0.1 to 5% by weight of a lithium compound, calculated as Li2O; and conventional contaminants and production-related residues, as is obtained when a mixture of either Fe2O3 or FeOOH or a mixture of Fe2O3 and FeOOH and the subsidiary constituents in the form of their compounds is moulded, dried if appropriate at below 160@C and calcined at 200 to 1000@C, the atomic ratio of vanadium to molybdenum or tungsten being 1 to 2.5 and when Fe2O3 is used as starting material in production, the content of vanadium being selected in such a way that in the finished catalyst it is 0.5 to 2% by weight, when FeOOH is used as starting material it is 0.5 to 2.5% by weight and when a mixture of Fe2O3 and FeOOH is used it is no more than 1.5% by weight, in such a manner that when ... Original abstract incomplete.
Patent DE-3927035-A1 (DE)
Title: Ventilator and venting system for absorption rooms - has absorber channel between air inlet and outlet apertures, and supply and discharge lines for EM wave attenuation
Inventor: SCHMITZ KLAUS DIPL ING
IPC: H05K9/00
Filed: 1989-08-16
Abstract: The system has honeycomb chimney inserts (4) for attenuation of electromagnetic waves of dm and cm range, which penetrated the ventilation and venting system. There is a fan (6), to which are connected an air supply and an air exhaust duct (5). For attenuation of the electromagnetic waves even in the mm range, an absorber duct (3) is fitted between the air inlet and outlet apertures (2) of the absorber room (1), and the air supply and exhaust ducts. The absorber duct is so designed that the electromagnetic wave, penetrating the air apertures are several times reflected at the walls (30, 31) of the absorber duct and/or dissipated prior to reaching the air ducts. USE/ADVANTAGE - For laboratory measuring under free field conditions, with standard fans even for mm wave measuring.
Patent DE-3929863-A1 (DE)
Title: Hydrodynamic dental prosthesis - has lining of flexible plastics with cavity filled with liq. or gas
Inventor: GYOERY KALMAN
IPC: A61C13/07
Filed: 1989-09-08
Abstract: The dental prosthesis has the outer part (1) of the prosthesis base made from a hard plastics material.  This hard plastics is lined with a flexible plastics (2) which encloses a cavity (3) which is hermetically sealed and is filled with a liq. or a gaseous medium. The cavity (3), during the production phase, is fitted with at least one pressure outlet valve (7) with the opening (8) for the valve being fitted with a plug (9) when production is completed.  This type of dental prosthesis spreads the loads imposed by biting evenly over the gum. USE - Dental prosthesis.
Patent DE-3934257-A1 (DE)
Inventor: WARNEKE HORST
IPC: E04C2/08
Filed: 1989-10-13
Abstract: The steel cassette takes the form of a highly load-bearing box-like cassette component (1) with plane walls (2) and a surrounding edge section (3) bent in several places which has stiffening sections (4) secured beneath the cassette walls (2), apertures (5) and connecting holes (6) in the surrounding edge section (3) and block-outs (7) in the corners to bend the edge sections (3) and for the fitting of supports (8).
Patent DE-3939534-A1 (DE)
Title: Compound refrigerator door mfr. - by compensation of cooling deformation of each outer skin before foaming of central core
Inventor: LUETZ REINHARD DIPL ING
IPC: B29C44/12
Filed: 1989-11-30
Abstract: The refrigerator door mfr. has a compound structure, comprising a metal layer (7) and a plastics foil layer (8) on opposite sides of a rigid foam core (9), sandwiched between the upper and lower plates (1,2) of a heated mould.  The heat provided by the latter is used for in-situ  foaming of the foam core (9). Thea deformation of the metal layer (7) and/or the plastics foil layer (8) during cooling is compensated before the foaming of the core (9) by a deformation in the opposite direction. ADVANTAGE - Ensures planar outer surfaces of mfd. door.
Patent DE-4002442-A1 (DE)
Title: Cylinder head for IC engine - uses hollow inlet valve containing outlet valve on common axis
Inventor: SCHNEIDER ROLAND
IPC: F02B1/04
Filed: 1990-01-27
Abstract: The cylinder head for a combustion engine in which each inlet valve is formed as a hollow body (6) into which the outlet valve (11) is displaceably introduced, with a gap (8) in the inlet valve leading to the outlet channel (22). The opening (20) is formed by the inlet and outlet vavles, and by using one valve pair (17) the common axis (18) is identical with the cylinder axis (5), whilst by using several valve pairs per cylinder (4) their common axes are also identical. ADVANTAGE - Space-saving design using fewer components to give a homogeneous distribution of the fuel-air mixt..
Patent DE-4003291-A1 (DE)
Title: CAM expansion measurement - using radial displacement at peripheral points as inserted tubular body is expanded for quality checking connection of CAM and shaft
Inventor: FICKEL RAINER
IPC: G01B5/252
Filed: 1990-02-03
Abstract: The method of quality checking the connection between a cam (2) with a cam aperture and a plastic expanded tubular body inserted into it involves measuring the radial displacement at several points (6-8) around the circumference of the cam as the tubular body is expanded. An average increase in the dia. of the cam aperture or the radial displacement of the centre point (M) of the tubular body is derived from the individual radial displacement values. USE/ADVANTAGE - Enables expansion of tubular body or drive shaft to be measured with cam mounted on it and measurement of radial displacement.
Patent DE-4006906-A1 (DE)
Title: Appts. to insert probe into pipe - is used with pipe contg. material under pressure, and incorporates cylinder and sealable port
IPC: G01K13/02
Filed: 1990-03-06
Abstract: The appts. is for mounting building parts, esp. a  measuring probe (20) in a pipe (10) carrying a medium. There is a tube support (13) which is equipped with a sealable port (14).  The tube support (13) surrounds a tube (18) in the pipe, and medium-tight. A cylinder is attached to the tube support (13) at right angles to the pipe (18). The cylinder allows medium under pressure to enter and leave along supply lines. The cylinder has a double-headed piston with a two-part, releasable coupling (42,43) at the end which enters the pipe. The coupling carries a holder for the building part (20) and positions the part brought through the opened port (14) to the pipe. USE/ADVANTAGE - The part can be positioned in the pipe without the pipe having to be drained, and without loss of pressure.  The device is small and works rapidly and reliably.
Patent DE-4020245-A1 (DE)
Title: Knock down-pallet crate - is connected up by screws to enable easy reuse
Inventor: NAEGELE WERNER
IPC: B65D19/16
Filed: 1990-06-26
Abstract: The collapsible multi-way pallet crate is used for transporting bulky goods. It has several screws connecting the side parts (1 and 2) to the top parts (3 and 4). The crate base can be formed by a pallet (5) which is connected by screws to the top parts. USE/ADVANTAGE - Easier reuse of the packing crates and easier handling of the goods therein.
Patent DE-4025668-A1 (DE)
Inventor: DETTINGER DIETRICH
IPC: F16H55/18
Filed: 1990-08-14
Abstract: To be able to deform the toothed rim (2) of a toothed wheel (1) for synchronously driving the cylinders of offset printing machines or in conjunction with an increase in diameter, the toothed rim (2) has an annular groove (3), in which a tensioning ring (4), comprising two body parts (10, 11) with inner cone (5) can be pressed in coaxially to the toothed wheel (1), there being attached to the tensioning ring (4) in the axial direction a plurality of tensioning devices (6), which rotate with the toothed wheel (1) and, to a greater or lesser extent, depending on the setting deform the toothed rim (2) of the latter convexly in the radial direction by means of the split tensioning ring (4) with inner cone (5). 
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Patent DE-4027000-A1 (DE)
Title: Shower curtain attachment from rail - consists of bar with magnetic guide piece and connections to wall fitment
IPC: A47K3/38
Filed: 1990-08-27
Abstract: The attachment for a shower-curtain (10) which hangs from a rail (14) over the bath or shower-tray consists of one lengthwise edge of the curtain (10) being attached to a wall-fitment (13) fixed to a wall (12).  The other lengthwise edge is attached to a bar (15) on the top rail (14) and on the rim of the shower-tray (11) by m a magnetic guide (30). The bar (15) has connections for attaching to the bar (15) of an adjacent curtain (10) or to a wall-fitment (13).  The bottom end of the bar (15) has a corner (30) gripping round the rim of the trough/bath.  A magnet is attached to the corner (30) on the surface resting on the bath-rim. USE/ADVANTAGE - The attachment for a shower curtain provides a better seal for the bath in relation to the rest of the room.
Patent DE-4027468-A1 (DE)
Inventor: ADOLPHS MANFRED
IPC: A47B88/493
Filed: 1990-08-30
Abstract: The drawer guide has two guide rails (20) on the carcass side and two extension rails (19) on the drawer side. The guide rails have a U- or C-profiled section into which project the support rollers (21). On the top arm of each profile behind the support roller is a release opening (20a) for a secondary roller (29) provided on the drawer side. The secondary roller is attached to a roller holder such as a lever (30) which is movable relative to the drawer (11) so that it can move the secondary roller into the release opening. The swivel arm (23) at the back of the drawer and roller holder have locking elements (35,36). The locking elements interengage when the secondary roller is located in the release opening so that the swivel arm becomes locked in a first position running parallel to the longitudinal direction of the drawer. <IMAGE>
Patent DE-4029621-A1 (DE)
Title: Connector with C=section and clamping bolt(s) - has shanks and web thicker than clamping bolt dia. and shank spacing is equal to web thickness
Inventor: ZIRKEL SIEGFRIED
IPC: F16B2/06
Filed: 1990-09-19
Abstract: The C-section connector has a clamping bolt working in a tapped hole in one shank. The bolt has a threaded pin (4), whose tip has a specified standard hardness of 10.9, 12.9 or 14.9. The web (1) thickness is 1.5 or more times the bolt dia. and the shank (2.3) thickness is equal to or greater than this dia. The gap between the shanks is equal to or less than the web thickness.  The components to be connected are positively held between the shanks. ADVANTAGE - Simple and reliable joining of flat components.
Patent DE-4031427-A1 (DE)
Title: Operating EM regulator at reduced energy level - reducing retention power once switched on and monitoring to boost power if change in switched state is detected
Inventor: RUESS ROLAND
IPC: H01F7/18
Filed: 1990-10-04
Abstract: Max. power (Pmax) is supplied to the e.m. regulator (6) to obtain the required setting. Power is then reduced to a value (P1,P2) sufficient to maintain and continuously monitor the regulator setting. When the setting changes, an increased supply of power, in particular max. power (Pmax), is supplied to the regulator for a predetermined period (t3). When the setting of the regulator is reached, the supply (Pv) is reduced to min. supply (Po,P'o), i.e. level that initiated the change in the setting. After a predetermined period (deltaT) the increased supply (Pmax) to the regulator is reduced again to the level (P1,P2) equal to (Po,P'o) plus a safety supply (deltaP). USE - Electronic switch (10) for an on-off solenoid valve in hydraulic circuit.
Patent DE-4033733-A1 (DE)
Title: Automatically closing mixer fitment for hot and cold water - has housing, inlets, outlet, and cap with control, with three ceramic mouldings
Inventor: KRUEGER KARSTEN
IPC: F16K11/078
Filed: 1990-10-24
Abstract: The automatically-closing mixer fitment for hot and cold water, has a housing, hot and cold water (11) inlets, outlet (12) and cap (10) with control. Ceramic mouldings are used for the closure-pieces (3), one of which has two water-inlet holes closed by the second moulding in relation to the cap-adjustment. A third moulding is positioned with the cap for regulating the outlet temperature. The ceramic mouldings (1,2) are pressed down to open the inlets (11). Turning the cap (10) causes another mechanism (9) to move the control (2) sideways. USE/ADVANTAGE - Three ceramic mouldings are joined by levers to the cap to block or release the hot and cold water flowing through, and to regulate the temperature.
Patent DE-4036174-A1 (DE)
Title: Automatically-activated vehicle braking system - uses laser beams to measure relative spacing between vehicles for activating velocity-dependent braking
Inventor: BUANGA NESTOR F DR MED
IPC: G01S17/931
Filed: 1990-11-14
Abstract: The braking system allows the vehicle to be braked at a rate dependent on the vehicle velocity to prevent impact between successive vehicles. The braking is initiated dependent on the relative spacing between 2 successive vehicles. The spring is measured via laser beams projected in front of the vehicle path, with the braking controlled via a computer, supplied with the measured vehicle velocity. USE - For preventing impact between 2 successive vehicles.
Patent DE-4036251-A1 (DE)
Title: Cellular pump or compressor - is for vehicle air conditioning and has mechanical pressure device to hold vanes in position
Inventor: ROTH WOLFGANG DIPL ING
IPC: F04C18/356
Filed: 1990-11-14
Abstract: The stator (13) and rotor (19) enclose a working space. The tips (28a) of several radially moving lamellar vanes (28) abut the stroke surface (17) of the working space and divide it into at least one HP and one LP cell. A supporting ring (42) rests against the ends (28b) of the vanes to prevent them lifting. The contour followed by the stroke surface (17) in the direction of rotor rotation (20) is based on the path of the supporting ring's centre (47), rotor, stator and vane geometry, and the fact that the vane tips (28a) will not lift from the stroke surface (17) in any rotor position. USE/ADVANTAGE - Pump or compressor for vehicle air conditioning is of simple construction, reduces wear, increases efficiency.
Patent DE-4106548-A1 (DE)
Title: Wire probe as sub-microscopic transceiver EM radiation - is of length one or more times wavelength of light used with curved spike at one end and leading to light conductive structure at other end
Inventor: FISCHER ULRICH DR
IPC: G02B21/00
Filed: 1991-03-01
Abstract: The probe consists of a wire (D) having a length (11) in the order of magnitude of one or more wavelengths of the light used. One of its ends (P2) is connected to a light conducting structure (L). The other end (P1) takes the form of a tip rounded at a radius (a) the same or smaller than the wavelength. The da. (d2) at the end (P2) is the same or larger than twice the rounded radius (a), and projects from the end surface of the light conducting structure (L) in a straight line or at an angle of up to plus and minus 90 deg. The light conducting structure is of glass fibre (G) with a dia. (d6) of approximately 80 microns. The wire in the form of a silver core has a dia. (d5) of about 8 microns. USE/ADVANTAGE - Type distance sensor used with optical signal esp. for short range microscopy to obtain high lateral resolution.
Patent DE-4112585-A1 (DE)
Title: Aircraft with annular wing - generates laminar air flow radially from centre line to provide lift
Inventor: GESCHKA HANS
IPC: B64C39/06
Filed: 1991-04-17
Abstract: The aircraft has an annular wing with a lift-generating profile (1), over which laminar air flow takes place in the radial direction from the centre-line (2), to generate lift. This air can be drawn in via a port (7) in the top guide plate (6) by a bladed fan (3), discharging to the wing in the radial direction, and directed by the top and bottom guide plates (6, 5) so as to generate the necessary lift. USE - For supersonic and hypersonic flight, there being no loss of lift at the ends of the supporting surfaces.
Patent DE-4116918-A1 (DE)
Inventor: BAUMANN ARTUR DIPL ING
IPC: F16L33/08
Filed: 1991-05-24
Abstract: The invention relates to a hose clip with a bearing point (10) for a band tightening screw (12), a metal housing (16) with a bracket (14) and an annularly curved flat metal band (18). At one end (20) the metal band (18) is rigidly secured to the bracket (14) and its other free end (22) can be led through a tunnel aperture (24) in the housing (16) close to the bracket. In addition, in the region of its free end (22), the metal band (18) has a grid-like set of perforations (26) with oblique transverse shoulders (28) to engage with a short thread (30) on the tightening screw (12) in the bracket region (14) of the housing (16). To permit automatic manufacture with a high degree of process reliability, the housing takes the form of a one-piece bent component attached by laser weld seams (36, 38) at joining points (32, 34) in the region of the bearing point (10) and the saddle (14). In addition, one end of the band (20) is either butt or lap-welded to the bracket (14) by another laser weld seam (40). The band tightening screw (12) is arranged axially and radially in the bearing point (10) with a head section (64) and, at the end opposite the head section (64) has a short thread (30). The short thread (30) can be fully axially moved out of its region of engagement with the band perforation (26), thus permitting rapid fitting.
Patent DE-4117791-A1 (DE)
Inventor: MENZEL GERHARD
IPC: G02B21/34
Filed: 1991-05-31
Abstract: The invention relates to a specimen slide in the form of a strip-shaped glass plate. To improve production and handling of the slide the glass plate is surrounded on all sides by a plastic frame.
Patent DE-4122005-A1 (DE)
Title: Bottom offcut breaker plate for stamping machine - has supporting bridges inside ejection port clear of supporting face
IPC: B26D7/18
Filed: 1991-07-03
Abstract: The bottom breaker plate is for offcuts from flat work in an automatic stamping machine. It has a supporting face for the work with an ejection port for the offcut, and supporting bridges for the latter resistant to bending load. The ejection port from the underside of the bridges is larger than the offcut and widens in a cone towards the bottom. One or more breaker pins on a holder travelling downwards pre-load the offcut on the bridges by bending, so that it then accelerates by spring action out of the port. The bridges are situated inside the port and clear of the supporting face in the vertical direction. The periphery of the port above the bridges is in line with that of the offcut. ADVANTAGE - Allows ejection of offcuts of complicated shape without use of a bottom pin.
Patent DE-4124321-A1 (DE)
Title: Over-load voltage protection circuit - has thermal fuse switch that responds if first varistor fails to establish second varistor path to ground
Inventor: HASSE PETER DR ING
IPC: H02H9/04
Filed: 1991-07-23
Abstract: The overload voltage protection circuit has a pair of parallel varistors (V1, V2) connected between the live phase (1) and ground (2) in parallel. The varistors connect to the live phase via a thermal fuse (3) that in the normal state connects with one of the varistors (V1). In the event that the coupled varistor overheats, the fuse switch responds and a changeover takes place to the second varistor to maintain the conductive path to ground. An optical and/or acoustic indicator alerts the operator that the first varistor (V1) must be replaced. Alternative versions to provide such failsafe operation are possible. ADVANTAGE - Includes redundant element as failsafe back up.
Patent DE-4124614-A1 (DE)
Title: Flexible disc clutch with two halves
Inventor: KUEHNE VIKTOR
IPC: F16F15/139
Filed: 1991-07-25
Abstract: The flexible clutch has two clutch halves (1,2) has the clutch element in the form of an  elongated coil spring (7). The latter is divided axially into partial sections (9,10) by at least one wedge spring quill (8) which is inserted between each two adjoining spring turns in the outer coil region (13). The radius of curvature (r) of the spring, with at least one wedge spring quill in position is pref smaller than the radius of curvature (R) of the partial spring sections.
Patent DE-4125588-A1 (DE)
Title: Vehicle oil level meter with electromagnetically operated piston - has oil feed to cylinder chamber forming oil cushion which retards piston movement at or near its rest position
Inventor: KIRSTEIN GERHARD DIPL ING
IPC: G01F23/22
Filed: 1991-08-02
Abstract: The oil level meter contains an electromagnet (8) which moves a piston (4) from a rest to a working position at a transverse wall (14) bounding a cylinder (2) chamber (28). The piston automatically returns to the rest position when the electromagnet is switched off. An oil passage (46) from outside the cylinder into the chamber allows oil to flow into or out of the chamber when the piston is at or near its rest position. The oil forms an oil cushion in the chamber which prevents the piston from moving from its rest position, or strongly retards it, when pulled by the electromagnet. The axial piston position is converted (16,18) into an electrical signal. ADVANTAGE - More accurate display, is more reliable and less sensitive to mechanical and electromagnetic disturbance.