baber/WOPTO huggingface dataset:
Patent DE-4018998-A1 (DE)
Inventor: WEISS HORST DIPL PHYS
IPC: G01L19/00
Filed: 1990-06-13
Abstract: A fibre optic pressure sensor has a pressure-measuring head (10) with a housing (12) which houses a membrane (13) which functions as a pressure sensor and executes a lifting movement when subjected to pressure. The inside (13') of the membrane has a highly reflective surface (14). The pressure sensor also has a beam waveguide (11) the front surface (11') of which faces the highly reflective surface (14) on the inside (13') of the membrane and which conducts the light emitted by a light source (31) into the pressure-measuring head. The reflective surface (14) on the inside (13') of the membrane and the front surface (11') of the beam waveguide (11) run orthogonally to an optical axis of the beam waveguide (11), and the front surface (11') of the beam waveguide (11) is partially reflecting, and therefore the highly reflective surface (14) on the inside (13') of the membrane and the front surface (11') of the beam waveguide (11) form a Fabry-Perot resonator.
Patent DE-4021188-A1 (DE)
Inventor: AL-DEEN HISSAM DR ING
IPC: F16D65/853
Filed: 1990-07-03
Abstract: In a lubricating system for a brake disc (18), whose brake linings have grooves (44) which run essentially radially and have oil flowing through them from the inside to the outside and to which, radially externally an oil collecting channel (50) connects, from which the oil flows out via at least one outlet channel (52, 60), the oil flow through the grooves (44) can become turbulent at high speeds, adversely affecting the lubrication of the break linings. In order to control the oil flow through the grooves (44) it is proposed to restrict the outlet channel (52, 60) so that an overpressure is produced in the oil collecting channel (50). 
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Patent DE-4023081-A1 (DE)
Title: TV imaging screen using matrix of diodes - giving colour rendition by red, green and blue filters and are individually activated by digital signal
Inventor: HABERKERN OTTMAR
IPC: H04N9/30
Filed: 1990-07-20
Abstract: An imaging plate for colour picture reproduction comprises a ceramic carrier plate (14) supporting a matrix (12) of LEDs, vertical electrolytic strips (20) and semiconductor masks (22) covering the strips and arranged to cover a group of filters contg. a red, a blue and a green filter. Horizontal strips (24) cross the vertical strips (20). A diode (26) is set at each crossing point. The image signal is converted to a digital signal. Individual diodes are selectively activated depending on the digital signal to produce a video display. USE/ADVANTAGE - Compact and inexpensive efficient device for reproducing good quality colour pictures without dazzle and interference as is usual with LED screens.
Patent DE-4023631-A1 (DE)
Title: Pupil position determination and recording method - using computer controlled memory and recording system to eliminate parallax errors
IPC: G02C13/00
Filed: 1990-07-25
Abstract: The apparatus frame (1) consists of a chin rest (3) and an optical sighting system (12) which is attached to a carriage assembly (4) and is adjustable in the X and Y axes by two appropriately positioned controls (8,9). A marking plate (10) is fitted in retaining slots (19) at the front of the apparatus frame (1), and as the optical sighting system (12) is adjusted to establish pupil (23) position w.r.t. frame attitude (24.25.28.29) the relevant points are recorded on the marking plate (10) by a marker pen assembly (11.17.18). The apparatus can be adapted to electronically record pupil position w.r.t. frame attictude by fitting a computer controlled memory and recording system (31.32.33). USE/ADVANTAGE - Accurate and simple apparatus for determining pupil position w.r.t. frame attitude - eliminates parallax errors and manual measurement inaccuracies - simplifies choice of glass blanks for specific frame selection.
Patent DE-4028538-A1 (DE)
Title: Rotor earth protection arrangement for sync. generator - uses phase angle between measuring voltage and current through series through series protection circuit as response criteria
Inventor: LEHM JUERGEN DIPL ING
IPC: H02H7/06
Filed: 1990-09-05
Abstract: The protection arrangement comprises a series circuit between the motor circuit and earth, contg. a coupling capacitor (Cv) an inductance (Lv) and a measuring AC voltage source. Response criteriaa are provided by the phase angle between the measuring AC voltage aand the current through the series circuit and the insulation  resistance. The coupling capacitance and inductance values and the frequency of the AC measuring voltage are selected so that the series resonance frequency is for enough from the measuring voltage frequency to obtain a purely capacitive current with a high insulation resistancee and is purely inductive when the earth connection has no resistance. ADVANTAGE - Response value is adjustable in range between 100 and 1,000 Ohm.
Patent DE-4032858-A1 (DE)
Title: Excess pressure relief valve for gastight sealed accumulator - has small angle opening radially outwards between seating and end face of elastically deformable valve member
Inventor: THIELEN CHRISTOPH
IPC: H01M2/12
Filed: 1990-10-12
Abstract: A cylindrical insert (1) into an opening in the casing incorporates an annular seating (9) at a step in its wall (8) for a valve member (19) movable against an elastically deformable restoring element (20). The desired eleasticity is provided by this element being formed in one piece of thermoplastic elastomer with the valve member (19), and reduced in external dia. at one level (21). The seating (9) is angled at 3 deg. to the undeformed valve member. ADVANTGE - Functionally capable valve is produced with low elastic constant, requiring no allowance for variations in opening and closing pressures.
Patent DE-4042189-A1 (DE)
Title: Controlling energy characteristics of power press - by energy transfer between air-hydraulic intensifier and hydraulic cylinder linked to drive connecting rods
Inventor: PETTER WIELAND DR ING
IPC: B30B15/00
Filed: 1990-12-29
Abstract: In a conventional power press drive energy is normally lost in the form of heat emitted by the clutch and brake during the press working cycle. In the new system a power press for drawing operations has a hydraulic cylinder (18) linked across the two connecting rods (7a, 7b) of the press eccentric drive shafts (6a, 6b). The chambers of the cylinder are connected by way of directional control valve (19) to a pressure intensifier (28) which acts as an energy storage unit. Also connected to the high pressure side of the pressure intensifier is the hydraulic cylinder (25) for loading the draw ring (21) of the drawing tool. Under valve control the intensifier releases energy allowing hydraulic cylinder to close and accelerate the press ram at the start of the press cycle. Conversely, the cylinder returns oil to the intensifier towards the end of the cycle, thus decelerating the ram. ADVANTAGE - Reduced wear of clutch and brake. More efficient energy usage. Reduced noise.
Patent DE-4100062-A1 (DE)
Title: Thermal expansion magnitude sensing appts. - converts readings into algorithmic values for automatic temperature compensation
Inventor: STURM BORUT
IPC: G01B5/00
Filed: 1991-01-03
Abstract: The apparatus case (1) contains a fixed (glued) support section (5) and a free support section (6) which are joined by two lengths of rod (3.4) that have a low coefficient of expansion. A thermal strip (2) of a high coefficient of expansion, passes through slots in both support sections (5.6) and is attached (glued) to the fixed section (5). The thermal strip (2) is tensioned by elastic guide wires (10.12) which ensure an unrestricted expansion and contraction process. An integral part of the free support section (6) is a reference scale (7) which lies parallel to the thermal strip (2) and an electronic read head (8) that indicates the change in length of the thermal strip (2). USE/ADVANTAGE - Thermal expansion readings are converted into corresponding algorithmic values which are used for automatic temperature compensation in industrial length sensing equipment.
Patent DE-4103717-A1 (DE)
Title: Rotary stirrer for metal melts - made of vacuum slip cast fibre-reinforced refractory material
Inventor: HABERREITER JOHANN ING
IPC: B01F15/00
Filed: 1991-02-07
Abstract: (A) a rotary stirrer, for treating metal melts, is formed of a composite material comprising an inorganic refractory material (e.g. aluminium oxide, zirconium oxide or quartz), a heat resistant inorganic synthetic fibrous material distributed in the refractory material, and an inorganic binder or a combination of inorganic and organic binders. (B) prodn. of the stirrer comprises introducing a wet mix. of the compsite forming components into a porous mould, withdrawing the liq. by vacuum suction through the mould wall, removing the moulding from the mould and drying at above 100 deg. C. ADVANTAGE - The stirrer has increases service life, does not require special expensive precautions during use and is simple and inexpensive to produce.
Patent DE-4104216-A1 (DE)
Inventor: BRANDES BERND
IPC: F17D5/04
Filed: 1991-02-12
Abstract: A pipe with an inner pipe (1) conveying the medium and an outer pipe (2) comprise a sensor (S) in the packing (3) between the pipes for detecting fault locations. In addition, data (D) are transmitted via a cable fitted to the pipe. The aim is to reduce the costs for transmitting the data (D). According to the invention, the sensor (S) is also used to transmit the data (D). Especially for a pipe for conveying liquid media for remote heating.
Patent DE-4104941-A1 (DE)
Title: Mounting arrangement for perforated mask in CRT frame - incorporates pressure plates for holding edges of frame while mask is lifted and pressed into it
Inventor: KANG JONG-SU
IPC: B23P19/04
Filed: 1991-02-18
Abstract: The shadow-mask (20) is raised and lowered through a given distance by a hoist (34) when the frame (10) is held in the correct position w.r.t. the mask support (33), and the edge (21) of the mask (20) inserted into it. With the mask raised, several pressure plates (32) on reciprocating rods (35) are brought to bear on the edge (21). The top inner sections of the plates (32) may incorporate recesses (31) for the purpose of holding the frame (10). USE/ADVANTAGE - In shadow-mask colour picture tube mfr. Simple structure makes effective bond between mask and its frame.
Patent DE-4108258-A1 (DE)
Title: Room ventilating and air conditioning - divides each room into zones with repeated air supply and extraction
Inventor: DRESEN WINFRIED DIPL ING
IPC: F24F7/08
Filed: 1991-03-14
Abstract: The ventilating and air conditioning system has feed and extraction units for the fresh and stale air respectively to and from the rooms served. Each room (3) is divided into zones (4, 5) with repeated air supply and extraction. Each zone supplied with fresh air is adjacent to one or more others, from which stale air is extracted. For each zone, air supply or extraction can be interrupted for a period dependent on the room geometry and the number of occupants. ADVANTAGE - Reduced air exchanger for improved comfort without draughts.
Patent DE-4109827-A1 (DE)
Title: Movement device for travel simulator - provides wide viewing scope for pupil and incorporates double-shafted, cardanic bearing arrangement
Inventor: STOSIUS DIETER
IPC: G09B9/04
Filed: 1991-03-26
Abstract: The movement device for a travel simulator, partic. for wheeled vehicles, is used for the dynamic simulation of travel, acceleration and centrifugal forces, and for extreme situations, and involves a picture presentation surface for travel situations, together with a movable platform on which is located a driving pupil cabin, the platform being movable cardanically in two axes within a frame. The platform (4) is movable located in a first part bowl (1) forming a cylinder section which is located in a part bowl displaced throug 90 geg. to it, and likewise forming a cylinder section. The radius of the first part bowl runds through the middle of the driving pupil cabin and in its rest and starting position is determined by the viewing point of the pupil. The radius of the second part bowl is determined by the viewing point of the pupil. ADVANTAGE - For teaching learner drivers of road vehicles, affording a wide viewing scope of road situations.
Patent DE-4119319-A1 (DE)
Title: Programmable dishwasher with two water tanks - uses rinsing water collected after several cycles as cleaning water for later cycle
Inventor: HUETTEMANN WILFRIED
IPC: A47L15/00
Filed: 1991-06-12
Abstract: The dishwasher has several warm water pre-cleaning and cleaning cycles, followed by warm water rinsing cycles. A baffle plate directs the used water into one or other of two tanks. About eight times as much pre-cleaning and cleaning water is used as rinsing water so that the cleaning water tank fills up more rapidly than the rinsing water tank. After a number of cleaning cycles, when the tank of used cleaning water is full, the used cleaning water is pumped away from the machine. The accumulated rinsing water is then pumped into the cleaning water tank for use as pre-cleaning or cleaning water in the next washing cycle.  The whole process is automatic. ADVANTAGE - Energy-saving because less hot water required; guarantees hygienic cleaning conditions.
Patent DE-4122334-A1 (DE)
Inventor: HEINELT WOLFGANG
IPC: C03B1/02
Filed: 1991-07-05
Abstract: The invention relates to a process for treating mineral wool wastes, which are formed in the production of mineral wool and mineral wool products, and to a plant for carrying out the process. The object is to reprocess these wastes in an economically expedient way in such a manner that they can be supplied to acceptable further utilisation. This is achieved by finely grinding the mineral wool wastes to a particle size of at most 50 % R0.090 mm. This grinding product is mixed with a solid binder or with a strenthening liquid and formed into shaped pieces, for example granules, in a size of approximately 50 mm, from which the moisture is then removed by drying with simultaneous strengthening. <IMAGE>
Patent DE-4122522-A1 (DE)
Title: Cold self-service unit - has cold compartment separated from withdrawable refrigerator by horizontal heat-insulating wall
Inventor: RUEB GUENTER
IPC: F25D19/00
Filed: 1991-07-08
Abstract: The horizontal heat insulating dividing wall beneath the cold compartment contains apertures (5) for the circulation of cold air. The refrigerator beneath the wall is divided into a warm part and a cold part (3) by a vertical insulating wall with a hole. Pipes conducting cold medium and a connection between the warm and cold parts pass through the hole (5) in the vertical wall. This hole (5) is divided into several apertures, and is open at the front edge in the direction of the refrigerator door. When this door is open the complete refrigerator can be withdrawn. USE - As a self-service unit for the sale of chilled food.
Patent DE-4127988-A1 (DE)
Title: Acetylene absorption from crude ethylene@ and opt. ethane gas mixt. - in plate column with mixing zone for absorbent and liquefied prod. to prevent frothing
Inventor: HAEHN PETER CLEMENS DIPL ING
IPC: B01D53/18
Filed: 1991-08-23
Abstract: Removal of C2H2 from a crude 2 C hydrocarbon gas mixt. (I) is carried out by scrubbing with an absorbent (II) in an absorption column with plates, which is supplied with (I) at the bottom and regenerated (II) at the top; discharging charged (II) from the bottom and passing this to regeneration; and recovering a C2H2-free prod. gas stream (III) from the top, if necessary after sepg. and recycling a condensate to the absorption column; and introducing a liq. C2H2-free 2 C stream (IV) between the inlets for (I) and (II). The novelty is that (IV) is introduced in finely-divided form into retained (frothed) (II). Pref. (II) is retained in a mixing zone incorporated in one plate of the column, which is suppleid with (II) from the plate above and (IV). The inlet for (IV) is below the inlet for (II) to the mixing zone and in the lower 2/3, pref. the lower half of the column. (IV) is introduced at a temp. below that of (II), pref. at several plates. The mixing zone is filled with packing material. USE/ADVANTAGE - The process avoids froth formation in the column, which causes unstable operation and break-through of C2H2 into (III). It is used in the recovery of C2H4 from a crude gas also contg. C2H2 and opt. C2H6, 3C hydrocarbons and/or CH4 and is also suitable for removing all acetylenes from hydrocarbon streams, e.g. methylacetylene from a 3 C strea
Patent DE-4128437-A1 (DE)
Title: Gas or plasma processing of high-chrome steel workpiece surfaces - involves forming connecting layer with improved corrosion w.r.t. graphite and wear resistance for treating e.g valve spindles
Inventor: SCHUMACHER JUERGEN F PROF DR I
IPC: C23C8/26
Filed: 1991-08-27
Abstract: Workpieces in high-chrome steel, e.g. valve spindles from power station valves, undergo treatment in gas or plasma to form a connecting layer on their surface. Connecting layer is pref. composed mainly of nitrides, together with C, S, P and/or other nonmetals. ADVANTAGE - Corrosion resistance w.r.t. graphite, wear resistance and temp. resistance are improved
Patent DE-4128549-A1 (DE)
Title: Polyurethane doctor blade mfr. without gel deposit forming - involves mixing and stirring 2 or more liquids within vessel having inclined floor toward the outlet through which rotor screw protrudes
Inventor: FUJIWARA YOSHINORI
IPC: B01F27/94
Filed: 1991-08-28
Abstract: Two or more liquids are stirred, mixed and then poured from a central bottom outlet of a vessel. The floor of the vessel is inclined towards the outlet and the rotor shape conforms with it. The rotor has a number of inclined blades so that as it rotates in a clockwise direction the liquid is propelled to the outlet. At the lower end the rotor has a screw which protrudes into the outlet and expels the fluid. Two liquids are supplied through two inlets respectively. The housing is surrounded by a cooling jacket. The upper part of the rotor has a large number of protrusions and the lower part has vanes similar to a wind turbine. When mixing prepolymer (viscosity 2000 centipoise) with a crosslinking agent (viscosity 1000 centipoise) in the ratio 100:6.9, the rotor ran at 15000 r.p.m. with a throughput of 90 g/min. in a vessel of 30 cc capacity. USE/ADVANTAGE - The invention prevents the formation of gelling deposits during the manufacture of polyurethane doctor blades. (6pp Dwg.No.0/4)
Patent DE-4130805-A1 (DE)
Title: Rotary printing machine for printing single sheets - has rotating suction heads to grip sheets and remove them from cylinder
Inventor: DOERSAM WILLI
IPC: B65H5/36
Filed: 1991-09-17
Abstract: The rotary printer has grippers to remove the sheet (26) from the cylinder. Each gripper (18) consists of a rotating suction head mounted on a beam (3). Each gripper is driven so that its peripheral speed is different from the peripheral speed of the cylinder. The central plane of rotation of each gripper (18) is inclined at an angle to the central plane (14) of rotation of the cylinder. The planes of rotation of the grippers intersect the central plane of rotation of the cylinder (27) at a point outside the cylinder. ADVANTAGE - The grippers prevent the formation of creases in the sheets.
Patent DE-4134414-A1 (DE)
Title: Rivet connector for sheet metal - consists of bottom die holder with two opposite bottom die/anvil groups, located between two upper die tools
Inventor: STREIFENEDER ROBERT
IPC: B21J15/10
Filed: 1991-10-17
Abstract: The fastening machine is for connection of esp. C- or U-profiles, of eg metal furniture. It has at least one die tool, and a bottom die/anvil group. A bottom die holder (10) has two facing die/anvil groups (16, 18). The groups are located between two diametrically opposite upper die tools (3, 5). At least one group is movable relative to the associated die tool. The bottom die holder has an expander (20) for the group movement. The group and associated tool form a simultaneously operated double tool. ADVANTAGE - Quick and efficient, simple construction and handling.
Patent DE-4135262-A1 (DE)
Inventor: BEEK RAINER
IPC: G07G1/00
Filed: 1991-10-25
Abstract: With the cassette lid 2 closed, cheques or the like can be inserted into an associated cheque compartment 6 via an insertion slot 14 arranged in the cassette lid 2, unauthorised access to the cheque compartment 6 being prevented by the bending up or bending down of the insertion slot 14, in that an inner stripping edge 16 is arranged on the front lower limitation of the cassette lid 2. Moreover, a vertically extending stripping edge 17 terminating in the region of the insertion slot 14 is provided on the front upper limitation of the coin insert. When the cassette lid 2 is opened, a cheque or the like which is not inserted completely into the cheque compartment 6 is first carried upwards by the obliquely extending stripping edge 16 of the cassette lid 2 and is stripped off on the vertically extending stripping edge 17 of the coin insert, so that it can fall unimpeded into the cheque compartment 6. The obliquely extending stripping edge 16 of the cassette lid 2 serves as a guide track during the insertion of the cheque and prevents the cheque from catching on the front edge 27 of the cassette base part 1. <IMAGE>
Patent DE-4138746-A1 (DE)
Title: Lift beam for underground operations - has lift chains drawn with load chain from lift beam traverse, with catchment device provided for empty chain
Inventor: MOEWS MANFRED
IPC: B61B3/00
Filed: 1991-11-26
Abstract: For each empty chain (11, 12), a chain guide (21) is provided as catchment device (19), the commencement (22) of which connects to the chain run of the chain drive (14) and with the chain guide a tow device (28) works, which acts as empty chain drive on lifting and has empty chain broke on lowering. As chain guide a pipe extent (22-25) serves, which is fitted on one side of the lift beam traverse. In the tow device, a pressure medium motor works in conjunction with the empty chain, which on braking is operable as a compressor. The motor of the tow device acts on a rope winch (27), the rope of which is attached to the free end of the empty chain (18). USE - For lifting and transport of loads underground.
Patent DE-4139282-A1 (DE)
Title: Compressor for metal cans - consists of upsetting plate and pivoted lever with press plate
Inventor: DEHN RAINER
IPC: B30B9/32
Filed: 1991-11-29
Abstract: The compressor has an abutment to hold the can, and a movable press element to apply the pressure. The abutment (2) is formed as an upsetting plate (1), on which the can is placed lengthwise. The press element (5) consists of a one-arm lever (17), located pivoted above the plate, with a press plate (16), to press on the can. ADVANTAGE - Simple, requires little strength.