baber/WOPTO huggingface dataset:
Patent DE-3932627-A1 (DE)
Title: Optical disc recording and playback unit - has laser controlled by detector circuit to limit amount of light within period
Inventor: YOKOTA TSUNESHI
IPC: G11B7/125
Filed: 1989-09-29
Abstract: The optical disc recording/playback system has  the disc (1) driven by a motor under control of signals from a drive circuit (3) coupled to a main controller (4). The disc is accessed by an optical head (5) that has a laser (6), lens (7), beam splitter (8), focussing lens (9), photodetector (11) and photodiode (12). The light intensity of the laser is monitored by the photo detector (12) and this provides an input to the laser control circuit (15) which operates to regulate the intensity. Coupled to  the circuit is a unit (16) that inhibits the supply relay (17) when the lighting amount within a period exceeds a set limit. ADVANTAGE - Inhibition circuit limits amount of laser light in set period.
Patent DE-3933048-A1 (DE)
Title: Spool winding machine - with spool speed regulated by thread feed speed and with variable reaction control
Inventor: DUDA PETER
IPC: B65H59/38
Filed: 1989-10-04
Abstract: The spool (3) is driven at variable speeds by an electric motor (4) and the thread is fed over a pivot arm which sets the loop size and with the change in loop length altering the spool speed.  The controller has different modes of control.  When the thread is first applied to the spool a constant feed speed is used.  The automatic spool speed control operates when the reciprocating guide is activated ie. the thread has been attached. The reciprocating guide has a fast response control to allow rapid change of direction.  The spool speed is changed at a more moderate rate to proevent thread breaks.  This is achieved by a lower gain in the feedback signal for the spool speed control. ADVANTAGE - Rapid spool control, less risks of thread breaks.
Patent DE-4000981-A1 (DE)
Title: Adsorbent carbon in combined plastic or mineral tip support - purifies ascending or descending seeping contaminant
Inventor: SCHLUETTER ALOYS
IPC: B09B1/00
Filed: 1990-01-16
Abstract: Contaminated tip material is laid on a flat base forming the lower layer of a cpd. structure wherein the cover layer and/or an intermediate layer is formed of or contains fine C particles to filter and purify water seeping through the tip material either from the tip surface or from base material contg.  underground water. In one embodiment the intermediate layer (2) is a plastic fleece whose pores are charged with anthracite powder, milked to a grain size not exceeding 100 microns or active carbon pellets.  The 3mm thick outer cover layer (5) is of polyethylene strips.  Bentosite powder may also be included as sealant. A further embodiment applies the carbonaceous filter material as a filling in the spaces formed by a grid of longitudinal and transverse struts. ADVANTAGE - After passing down through the adsorbent C only very dilute eluate reaches the base mineral layer.
Patent DE-4001136-A1 (DE)
Title: Open top roof for vehicle - has intermediate piece on front bar forming sealing joint with windscreen frame
Inventor: BEER ERHARD
IPC: B60J7/12
Filed: 1990-01-17
Abstract: The roof is for a cabriolet vehicle. It has an intermediate piece (18) between the bar (42) at the forward end of the roof covering (14) and the windscreen frame. This is permanently secured at the rear to the bar and covering, while at the forward end (34) it forms a sealing joint against the frame. It can have top and bottom flanges (38, 40) at the rear, forming a C-section fitting round the bar. USE/ADVANTAGE - Roof for cabriolet type vehicle is simple to produce and forms watertight and aerodynamic joint windscreen.
Patent DE-4001554-A1 (DE)
Title: Power semiconductor module with plastics casing - has deposition struts for ceramic substrate at points away from edge
Inventor: NEIDIG ARNO DIPL PHYS DR
IPC: H01L23/495
Filed: 1990-01-20
Abstract: The plastic casing has in its bottom plane an aperture and a peripheral depression, into which is inserted the ceramic substrate with a metal layer as the module bottom.  The metal layer, facing the casing in side, is fractured and fitted with components.  On the plastics casing (1) are formed deposition struts (6) for the ceramic substrate (10) at support points spaced from the substrate edge. The support manner is such that between the top side of the ceramic substrate and the depression (9) of the plastics casing  remains a gap (13) several tenths mm wide, which is filled with adhesive (12) for securing and sealing of the substrate. ADVANTAGE - Improved design without danger of the plastics casing damage.
Patent DE-4002552-A1 (DE)
Title: Measurement of wavelength of spectrally narrow-band light source - using reference source, Fabry-Perot interferometer and measurement of intensity maxima separation
Inventor: LIEGEL JUERGEN DR
IPC: G01J9/02
Filed: 1990-01-30
Abstract: The measurement of the wavelength of a spectrally narrow-band light source involves using a reference light source.  Light from both sources (1,6) is fed to a Fabry-Perot interferometer (10), the distance between whose plates (10a,10b) is periodically varied. The intesnity of the transmitted light is  measured and the wavelength under investigation determined from the sepration of the intensity maxima (11,12). USE/ADVANTAGE - Esp. for use in microlithography.  Enables highly accurate and reliable measurement with samll, low-cost arrangement.
Patent DE-4003455-A1 (DE)
Title: Single-phase synchronous motor with stator control poles - has semiconductor controlled switch with gate electrode connected to winding of secondary control pole of pair
Inventor: MENGE EBERHARD DIPL ING
IPC: H02P25/092
Filed: 1990-02-06
Abstract: With each torque-producing pair of stator poles (3) is associated a controlling pair consisting of a primary control pole (4) and secondary control pole (5) with their respective Windings (7,8). A reluctance rotor (2) co-operates with the control poles (4,5) through a semiconductor (pref. triac) switch. The current in the torque-producing stator windings (6) is switched-off at the zero crossings of the single-phase AC supply, or at zeros of an alternative pulsed DC supply.
Patent DE-4004901-A1 (DE)
Title: Profiled plastic drainage strip for concrete, stone surfaces - has U=shaped drainage channels joined by distance pieces with cut-away sections at right angles and covered strip
Inventor: GUTJAHR WALTER
IPC: E04F15/18
Filed: 1990-02-16
Abstract: Surface drainage strip mfd in rigid plastic sheet, which forms parallel U-shaped profiles joined by distance pieces.  Base of the profiles and the distance pieces form two faces the distance apart of which is equal to the depth of the U-shaped profiles. Water permeable covering strip is bonded onto the distance pieces to form an upper face which also overlaps the edges of the drainage channels. Openings may be cut in the distance pieces and at right angles to them to allow water to pass from the external to the internal drainage channels. USE/ADVANTAGE - Drainage strip is used under stone or concrete floors and mortar layers, has a large surface providing a high rate of water removal and does not press into the soft seal above. Plastic drainage strip pref consists of outer drainage paths formed by parallel U-shaped channels (1) connected to each other by distance pieces (3). Bases of the channels (1) and the distance pieces (3) form two flat planes are pref sepd from each other by the depth of the channel (1) walls. Channel (1) cross-section may be square, rectangular or trapezium.
Patent DE-4005173-A1 (DE)
Title: Image brightness control on lined monitor screen - uses copy compensation signal for brightness proportional image signal to equalise ambient and/or stray light
Inventor: BIRGMEIR KLAUS DIPL PHYS
IPC: H04N5/58
Filed: 1990-02-19
Abstract: The controlled monitor image screen is written in lines and carries a visible image in a room with ambient brightness. For the compensation of the latter and/or the stray light of brightness proportional image signals, supplied by the image writing device, a compensation signal is copied as it is derived from the average brightness of the image to be written and/or the room brightness. In front of the CRT is fitted a device recognising its characteristic. An adding stage (18) is located in the region of a brightness proportional signal, contg. a signal mixer (15) with an input for a signal with a mean brightness of the image to be reproduced, and an input for a room brightness signal. ADVANTAGE - Monitor image impression irrespective of interference effects for final image on recording paper.
Patent DE-4011056-A1 (DE)
Title: New N-retinoyl-L-thiazolidine-4-carboxylic acid derivs. - for treating neoplastic and mucosal diseases, esp. gastro-intestinal ulcers and new intermediates
IPC: C07D277/04
Filed: 1990-04-05
Abstract: N-retinoyl-L-thiazolidine cpds. of formula (I) and their pharmacologically tolerable salts are new: R'1 = H, H2, OH or oxo; R'2 = H, H2, OH, 1-3C alkyl or oxo; R'3 = H or H2; R1 and R2 = H or up to 6C alkyl or alkenyl; R3 = COOX or (CH2)nCHO; X = H, up to 6C alkyl or alkenyl or up to 4C hydroxyalkyl or hydroxyalkenyl; n = 0-Also new are the intermediates (II) and (III), Y = p-toluenesulphonate anion; R4 = -CO-O.CH2-CH=CH2. USE/ADVANTAGE - (I; esp. R3 = COOH) are useful in treatment of neoplastic disease and diseases (or pathological alterations) of the mucosa, esp. gastro-intestinal ulcers.  They can be administered systemically or orally. The combination of retinoic acid and S-contg. amino acid gives a prod.  with a single pharmacokinetic profile, even though the profile for the components are very difference, and results in a synergistic effect.
Patent DE-4012203-A1 (DE)
Title: Water heater with one-piece inner container - is flat and has inner container with open ended parallel water chambers insulated from outer case
Inventor: WAHNSCHAFFE KLAUS-DIETER ING G
IPC: F24H1/20
Filed: 1990-04-14
Abstract: The water heater comprises an inflated one piece inner container incorporating an immersion heater all mounted inside a rectangular outer case. A thermal insulation is installed between the inner and outer containers. The inner container (1) comprises a number of vertical parallel cylindrical water chambers (2) separated by strips (3) fixed to the container (1). The chambers (2) are open ended and their diameter (D) is less than their length (L). The  insulation corresponds to the thickness (T) of the heater. USE/ADVANTAGE - It is flat but the inner container is  adequately stable.
Patent DE-4012226-A1 (DE)
Title: Electronic multiplier circuit for digital values - has shift register controlled by pulse counter with two outputs
Inventor: MERKLE PAUL
IPC: G06F7/491
Filed: 1990-04-14
Abstract: The partial products generated by the circuit are added in sequence to the intermediate product value. The result register only executes a single shift operation. The system is controlled by a circuit having a pulse counter (11) producing two outputs (a,b). The counter is formed with a pair of flip-flops (1,2) six AND-gates (3) each with two inputs, an OR-circuit (4) with two inputs and an inverter (5). ADVANTAGE - Simplified clock control of shift register.
Patent DE-4013971-A1 (DE)
Inventor: BOROS FERENC DIPL ING
IPC: H02G5/00
Filed: 1990-04-30
Abstract: Such adapters have a contact maker and a hook, such as a hammer head screw, and link electrically and mechanically power bus bars with output elements, such as other power bus bars or power links. The new adapter should ensure an easy-to-mount, electrically and mechanically reliable link in view of the high short-circuit energies that can occur. For this purpose, the contact maker has a quadrangular guide into which the shaft of the hook projects in a non rotatable manner, because of its profile, and the shaft, which is provided with a threaded bore for fastening with a screw, has a profile that can turn over 90 DEG  in the slot of the power bus bar, as two diagonally adjacent corners of the profile are provided with a radius. This adapter makes it possible to interconnect in a particularly reliable and easy-to-mount manner two C-shaped power bus bars in switchboards.
Patent DE-4015668-A1 (DE)
Title: Vehicle speed change measurement sensor - has slider with restraining spring and magnet, photodiode and photocell generating light pulses from translational motion
IPC: G01P15/093
Filed: 1990-05-16
Abstract: The sensor is mounted on the vehicle and has a slider (1) with an aperture positioned w.r.t. a stop in a housing by a spring (7) and a magnet (6). The restraining force applied to the slider by the magnet is reduced by an intermediate part (5). Light from a photodiode (2) passes through the aperture in the slider to a photocell (3). USE/ADVANTAGE - Generates light pulses via translational rather than rotational motion when impact causes relative motion between inertial wt. and vehicle. Number of parts is reduced compared to conventional arrangements.
Patent DE-4017955-A1 (DE)
Title: Actuating fork for change speed gearbox - is made from aluminium casting with cast-in brass shoes
Inventor: REHR ALFRED
IPC: F16H63/32
Filed: 1990-06-05
Abstract: The change speed gearbox is actuated by a fork (1) which engages a groove in a sliding ring. The fork (1) is fitted with shoes (6) which are cast in brass in order to minimise friction between the fork and the sliding ring. The fork is cast in aluminium and the brass shoes (6) are placed in the fork mould before pouring in the molten aluminium. The brass shoes (6) are then held firmly in place in the finished aluminium casting. USE - Change speech' gearbox mfr.
Patent DE-4019358-A1 (DE)
Title: Capodastro used on guitar - remains in zero position at end of neck when not in use
IPC: G10D3/04
Filed: 1990-06-18
Abstract: The capodastro has two rollers (1, 12) and is for a guitar-type stringed instrument. It is usable in different forms with both fretted and non-fretted instruments, remaining in the zero position when not in use. The neck can be extended between the empty fret and head, to allow rolling of the capodastro into this position when not in use. The capodastro forms a permanent part of the instrument.
Patent DE-4024611-A1 (DE)
Title: Friction mechanism used as brake or clutch - has cylindrical central shaft with radial flange at one end fixed to rigid brake disc
Inventor: MONTALVO III WILLIAM W
IPC: F16D55/32
Filed: 1990-08-02
Abstract: The friction mechanism for use as a brake or clutch contains a cylindrical, central shaft (24) with a radial flange (25) at one end fixed to a rigid brake-disc (22) for operating the mechanism as a brake or fixed to a rotary plate (12) fixed to a shaft for operating as a clutch. - The plate (12) supports one or more piston cylinder arrangements (10). A cylindrical hub (24) is surrounded by a sleeve (28). A ridged disc (22) is fixed to a flanged (25) end of the hub (24).
Patent DE-4025541-A1 (DE)
Title: Wear and tear detection for molten metal containers - by equipping bricks from cladding with borehole and putting an insert in borehole made of different refractory than brick
Inventor: UMLAND PETER DR
IPC: F27D21/00
Filed: 1990-08-11
Abstract: Detecting wear and tear in vessels handling molten metal comprises equipping several bricks from the cladding with a borehole at the rear side which has a depth indicator and putting an insert in the borehole which is made from a different refractory from the brick itself. The insert material (pref. MgO contg. graphite) at above 1000 deg C has different light emitting and/or heat conducting properties from the surrounding firebrick material (e.g. dolomite based). The borehole and its geometric shape varies in its cross section along its length, its dia. of 30-100 mm. The insert is fixed in the borehole by mortar or adhesive, having a groove width of 0.5-2 mm. The changes in properties of the insert detect changes in the wear and tear. USE/ADVANTAGE - The system is simple and proportionately more accurate than state of the art, and the precautions taken do not need to be so great.
Patent DE-4028159-A1 (DE)
Title: Piston-cylinder actuator unit -  involves piston moved by pressure medium and having at least one connecting rod
Inventor: MAIER DIETER DIPL ING
IPC: F15B15/08
Filed: 1990-09-05
Abstract: The piston/cylinder unit incorporates a cylinder (1) in which a piston is movable with an outwardly directed movement (L2). On the piston connecting rod (2) is fitted a flexible component (3) in a guide (4) and which is located in a bend of 90 deg. with a specific curvature radius (R). On the flexible component (3) is fitted a piston end (5) which can be a suitable actuator. In the movement direction of the piston end (5) (x-x), the piston/cylinder unit has a length represented as follows:- L5 = L4+L2 approx. = 1.2-L2 in which the length L4 depends upon the bending radius (R). This drastic redn. of space requirement in the movement direction is achieved by the deviation of the flexible section (3) of the piston connecting rod. USE - As a linear movement unit in automated systems.
Patent DE-4031897-A1 (DE)
Title: Electronic null input circuit for four-field encoding - ensures correct positioning of decimal point when results include only numerals above zero
Inventor: MERKLE PAUL
IPC: G06F5/01
Filed: 1990-10-08
Abstract: An electronic null input circuit for null-free four-field encoded decimal numbers or five-field encoded decimal numbers contains two transverse lines in which OR circuits (4,5) are connected. The circuit processes the four-field encoded demical numbers. Its central regions consists of identical circuit sections (11), each contg. an OR circuit (1) with 4 inputs and a decimal point input (c). USE/ADVANTAGE - The circuit provides the nulls when a four-field coding only produces results with numerals above null. It ensures correct positioning of the demical point.
Patent DE-4033839-A1 (DE)
Title: Channel indicator for TV and radio receiver - has switching pattern, selecting receivable station and optically displaying on screen
Inventor: YANO HARUTO
IPC: H03J1/04
Filed: 1990-10-24
Abstract: The receiver has a channel indicator and a field intensity level display for individual channels.  Thus it points out the receivable stations.  A switching pattern for selection of the receivable station is optically displayed on a screen.  The indicator contains a contacting device for determining a switching signal for a desired channel in  dependence on actuating contact over the switching pattern. The switching signal corresp. to the contacted screen section.  A TV selection switch (1) selectively rotates the channel indicator.  The display (3) contains a CRT or an LCD.  The contacting switching section (4) responds to pressure or IR radiation. ADVANTAGE - High operational efficiency and reliable selection indication.
Patent DE-4035130-A1 (DE)
Title: Waste water purificn. appts. - with annular housing portions joined by clamped sealed flanges
Inventor: DIEFENBACH GUENTER
IPC: B01D17/02
Filed: 1990-11-05
Abstract: A waste water purificn. appts. esp. a light material separator, consists of a closed metal housing (1) assembled from annular housing portions (3, 5, 7, 8, 25) joined together by annular circumferential sealing joints (2). The novelty is that each joint (2) comprises two radial flanges of the adjacent housing portions, a seal inserted between the flanges and an annular clamp which encloses and clamps the flanges axially against one another. USE/ADVANTAGE - The appts. is useful for sepg. gasoline, oil and grease from waste water. Sealed joints between the housing sections are produced in a simple manner even when the sections consist of plates, e.g. stainless steel plates.
Patent DE-4106350-A1 (DE)
Title: Console support with two wall fixing rails - uses rail lengths of identical profiled cross section for easier production
IPC: A47B96/06
Filed: 1991-02-28
Abstract: The console support comprises a rail to be fixed vertically on the building wall to hold one or more twin armed angled memebrs. The rail (12) has a generally C-shaped cross section with back wall (16), opposite narrower side walls (18) and front wall webs (20) which each form a guide groove (22) with opposite back wall section. The angled member (24) comprises a cast part whose two arms (26,28) have the same constant width over their relevant length which with sliding play equals the base distance of the guide grooves (22) of the rail (12) whilst the thickness at the ends taking into account the sliding play equals the width of the guide grooves. The two arms (26,28) are connected together in one piece at least in the reinforcement rib (20) area. Each arm has at least one screw in threaded member (32) which interacts with the back wall (16) of the rail so as to firmly clamp the angle member. A further rail (14) acting as the console support has the same section as the wall rail. ADVANTAGE - All the rails are extruded sections with the same cross section allowing easier manufacture by cutting the standard length rails to size.
Patent DE-4108763-A1 (DE)
Title: Radiator for room heating - has double-walled sections, with inner wall of material inert to fluid heat carrier
Inventor: SCHWARZKOPF JOSEF
IPC: B21D53/08
Filed: 1991-03-18
Abstract: The radiator is for heating of a room, using a heat-transmitting fluid heat carrier, esp. water or water steam. This is passed through radiator sections, the outer surface of which is in heat exchange withthe ambient air. The radiator sections (2) and/or their associated tubes (4), are double-walled. The inner wall (22) of each section engages flat over the facing outer wall surface (24). Intakes and outlets (34) are connected to the inner wall. The material of the inner wall is inert to corrosion by the heat carrier fluid, and is different from the material of the outer radiator wall. USE - Radiator for heating room.
Patent DE-4113361-A1 (DE)
Title: Electroplating bath - has anode fixed within bath by external current feeds with current rail system for easy assembly on site
Inventor: DAETWYLER MAX
IPC: C25D7/04
Filed: 1991-04-24
Abstract: The galvanising assembly to process rotating bodies, particularly pressure cylinders, has at least one current supply (19) at a long side of the processing bath (12). The side wall (13), projecting from the interior, leads outwards. Pref. the anode (14) for at least one current supply (19) is held in place within the processing bath (12). The current feed (19) has a current rail (21) which passes on the inner side of the side long wall (13) of the bath (12), upwards and over the wall (13) pref. above the upper edge (13a). The current rail (21), pref. of copper, has a mantle cover (28) at least at the section (24, 25) in contact with the fluid in the bath (12), using a material resistant to the fluid such as titanium. One of the current supplies (19) has a height adjustment mechanism (36, 23, 21) to position the level of the anode (14). The height adjustment mechanism (36, 23, 21) has a drive (43, 45, 47, 49) connected to the current rail (21) with a flexible current feed (31) and current connection (33). The current feeds (19) are identical, and at a gap from each other, with matching parallel current rails (21) with a common adjustment through the drive (45, 47, 49) which has at least one drive motor and a threaded spindle (45) acting with a threaded nut (49) at the current rail (21). The section (27) of the current rail (21) outside the bath (12) is linked to a connecting rail (23) which is operated by the drive (45, 47, 49), where the threaded nuts (49) for the threaded spindles (45) are bonded to the connecting rail (23). ADVANTAGE - The system gives easy assembly of the appts. at the working site, without problems of butting walls and sealing the walls.