baber/WOPTO huggingface dataset:
Patent DE-3927365-A1 (DE)
Title: Applicator roller for coating low viscosity adhesive on foil - carries specified intersecting spiral grooves on its surface
Inventor: AMOSER HANS
IPC: B05D1/40
Filed: 1989-08-19
Abstract: An application roller has been devised for coating foils contin-uously with low-viscosity material, e.g. adhesives, dispersed or emulsified in water, with a viscosity of 40-70 cP for the mfr of adhesive tape. The roller receives on its surface two gps. of opposite-hand spiral grooves which have been engraved across the width of the roller. The application roller (3) runs in a tray (14) with an inflow and an outflow for an aqueous acrylic dispersion or emulsion adhesive. It is contacted by a coarse and a fine adjustable scraper. The foil (PVC or PP) is guided through the roll gap (6) between this roller and a smooth counter roller (5). The engraved pattern (112) on the surface (111) has spiral grooves (113) of trapezoidel cross-section with a min. depth of 0.4mm, a min. base (B) of 1mm and an angle of the flanks of 20 deg. ADVANTAGE - This distributes such low-viscosity adhesives in adequate quantities and evenly continuously and in one operation.
Patent DE-3928384-A1 (DE)
Inventor: VIESSMANN HANS DR
IPC: F23D11/00
Filed: 1989-08-28
Abstract: The forced draught burner is intended for heating boilers with waste gas recirculation and consists of a housing (1) which is open on the heating boiler side and can be placed on a heating boiler sealing plate (8) and in which a mixing pipe (10) with nozzle connection and a blower wheel (7) are arranged on a shaft (5) of the drive motor, which is perpendicular to the opening plane of the housing (1). The blower wheel (7) is assigned, for conveying air, an air inflow opening  (28) in the adjacent wall of the housing (1). The wheel chamber (3) is connected to the interior of the mixing pipe (10). In order to ensure completely separate air and waste gas guidance and conveyance on short paths inside the burner, the latter is designed according to the invention in such a manner that the housing (1) is divided by a partition (6) which is passed through by the nozzle connection (4) and the shaft (5), forming a sealing plate-side waste gas chamber (2) and the wheel chamber (3) extending parallel thereto. In the waste gas chamber (2), a further wheel (7') is arranged on the shaft (5) projecting into the chamber, or connected thereto. The wheel (7') is assigned on the suction side in the heating boiler sealing plate (8) a waste gas suction opening (9). The waste gas chamber (2) is connected to the interior of the mixing pipe (10). 
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Patent DE-3928992-A1 (DE)
Title: Smoother for sheets of paper in printers - consists of starter and discharge plate with suction pipes and gaps
Inventor: KOCH MICHAEL DR ING
IPC: B65H29/70
Filed: 1989-09-01
Abstract: The smoothing appliance (9) is for sheets of paper in sheet-feeders. It is positioned crosswise to the direction in which the sheets are travelling. The smoothing appliance (9) consists of a starter-plate (10), at least one suction-pipe (12), and a discharge-plate (11), and at least two smoothing gaps (14,14').  The suction pipes (12) are positioned behind each other between the starter and discharge plates (10,11). USE/ADVANTAGE - The smoother, especially for printers, consists of a hollow M-shaped piece which pulls the sheets through a gap by means of suction air.
Patent DE-3933710-A1 (DE)
Title: Bonding ends of polyamide drive belt opt. with rubbing layer - by forming complementary configuration with vertical contact surface and diffusion bonding
Inventor: GUBLER HANS-RUDOLF
IPC: B29C65/48
Filed: 1989-10-09
Abstract: Bonding of the ends of a flat drive belt material to a polyamide drive belt, which have complementary configuration in the plane of the belt and contact surfaces perpendicular to this plane, involves (a) applying a resorcinol or cresol soln.  or HCOOH or mixt. of these to the contact surfaces, (b) contacting the ends, (c) fixing the ends with a clamp and pressing perpendicular to the longitudinal axis of the belt, and (d) placing the fixed ends with clamp in a hot press and bonding the contact areas for 5-20 min. at ca. 100 deg.C and 0.5-3 bar. USE/ADVANTAGE - The diffusion process avoids the drawbacks of melt bonding and uses a polyamide materials resistant to temps.  up to 150 deg.C which have high tensile strength, robustness and flexibility. Faulty bonds due to incorrect overlaps are rare and the bonds can be made by unskilled workers. The bond has excellent alternating bending strength up to 150 deg.C with a forced operating life of 140 h., cf. 100 h. for a similar bond produced with an angled or stepped configuration and 140 h. at max. 60 deg.C for a welded zig-zag bond in a thermoplastic resin drive belt.
Patent DE-3934415-A1 (DE)
Inventor: BARTSCHER PETER ING GRAD
IPC: H01H35/28
Filed: 1989-10-14
Abstract: Known apparatuses measure and correct temperature-induced pressure fluctuations of the gas enclosed in the chamber. Used for this purpose is a temperature-sensitive reference-pressure capsule, which, however, is ineffective in the event of leakage. The novel apparatus is intended to detect the pressure fluctuations with means which are independent of the gas pressure. 
<??>The temperature-sensitive apparatus is formed from an element (14, 19, 20, 24) which changes its extension with the temperature and is arranged between a pressure-measuring device (6, 11) and a valve (7, 8; 9, 10) serving as a signal transmitter. 
<??>The apparatus can be used for monitoring the pressure of a vehicle tyre. 
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Patent DE-3939188-A1 (DE)
Title: Bus coupler for power-circuit control data transmission - includes transformer for galvanic isolation of AC control signals from DC power supply on three wires
Inventor: OTT HANS ING GRAD
IPC: H04B3/54
Filed: 1989-11-27
Abstract: Transmitting and receiving stations (2) are coupled to a three-wire bus (3) conveying communication traffic on two wires (12) at the same DC voltage, while power is supplied to the stations (2) by one or other of these wires (12) and the third wire (13). Communication is sepd. galvanically from power transmission by a transformer (4) which has a communication branch (8) connected to a coupling circuit (10) by a transceiver (9) of transmission and reception signals, while a bus branch (11) is connected to the equipotential wires (12), and a centre tap supplies a power branch (15). USE/ADVANTAGE - For power supply e.g. for motors for  curtains, lamps or heaters.  Communication is switched in and out without DC premagnetisation.  Undistorted transmission is achievable with low transmitter power, and practically unaffected by current peaks.
Patent DE-4001191-A1 (DE)
Title: Heavy duty plug and socket - has inner and outer main conical coupling with additional coupling at right angles
Inventor: PERLE JOSEF DIPL ING
IPC: H01R13/53
Filed: 1990-01-17
Abstract: The plug connector has a conical coupling receiving part formed in a single part container (10), and electrical connection members (3, 4) arranged central to the receiving part, which comprises a first coupling receiver (1) formed as an inner cone, and a second coaxial receiver (2) formed as an outer cone, and a third receiver (6), connected to the region of contact of the connection members (3, 4) of the receivers by an electric lead (5), which extends perpendicularly to the ends of the first (1) and second (2) receivers. USE/ADVANTAGE - Medium voltage installations for connecting cables to circuits. Inexpensive second connection can be arranged as well as connection between cable and circuit so that required protective isolation can be achieved when not in use.
Patent DE-4003490-A1 (DE)
Title: Conveyor for pallets carrying workpieces - has endless toothed belt to drive pallets along guide rails
Inventor: RIEDL VOLKER
IPC: B65G17/12
Filed: 1990-02-06
Abstract: Workpieces are transported by mounting them on pallets (4) moved along guide rails (6,7) by an endless toothed belt (24). Each pallet (4) has guides for the accurate positioning of the workpieces which are transported to and from the workstations. Each pallet runs on rollers (5) on the rails and is guided laterally by guide rollers (20) which are mounted with their axes vertical. On reaching one end of the conveyor the pallets are transferred to lower guide rails (8) by toothed wheels which engage bars (23) projecting laterally from the mid point of the side of the pallet. USE - Conveyors for pallets.
Patent DE-4005248-A1 (DE)
Title: Bearing end shield for no-frost small motor with cylindrical cap - has outer radial extensions which end in connections and are fixed to packet of laminations of small motor
Inventor: BACCHIOCCHI ALBERTO
IPC: H02K5/167
Filed: 1990-02-20
Abstract: The cap (30) has a cylindrical wall (12), the edge of which (12a) aligns with the contact plane of the connections, in which the extensions (30a) end, so that the wall (12) fullfils the function of a dust protection ring.$  Four recesses (10) are designed on the underside of the cap (30), from which four cylindrical pegs (11), which fit in to associated holes (50c) of a sheet metal plate (50) forming a bearing bush carrying spring (50).$  USE/ADVANTAGE - Bearing endshirlf got 'no-frost' electric small motor.  Reduces assembly time and prodn. cost.
Patent DE-4009549-A1 (DE)
Title: Rudder drive with electromotor driving threaded shaft - accepting lead-nut coupled to forked lever
Inventor: HETZER WALTER DIPL ING
IPC: B64C13/28
Filed: 1990-03-24
Abstract: A mechanism for turning a rudder from the shaft position of an electric motor employs a lead screw extending from the motor shaft to move a lead nut along its axis (2,3,4,5). The motion is transmitted through a fork-ended lever (13) pivoted diametrically across the nut axis and linked to a second lever (12) similarly pivoted and coupled to turn the rudder shaft (6). The rudder angle is proportional to the lead nut position over 45 deg. of its range and any twisting from the nut is nullified. The motor shaft position is transmitted as a digital signal via a coded disc and sensor (22.23). USE - Servo-controlled mechanical linkages.
Patent DE-4010209-A1 (DE)
Title: Safety net for combination vehicle - with provision of energy-absorbing tie-rod
Inventor: AMENT EDUARD
IPC: B60R21/06
Filed: 1990-03-30
Abstract: The safety net is for the protection of a passenger area from the goods area of a combination vehicle.  It has two parallel longitudinal edges one of which (16) runs beneath the vehicle roof (2) and the other runs parallel to the back seat rest. The safety net is secured by a tie-rod (18) provided with energy absorbing profiles (25, 26) which take up the kinetic energy of an object (38) thrown against the net when deformed by the movement of the end pieces (29). USE/ADVANTAGE - Safety net which gives improved protection to the occupants of a combination vehicle.
Patent DE-4011963-A1 (DE)
Title: Insulator for shock impulses - consists of two sections in the form of plates, joined by spring and with steel cable
Inventor: BRENDEL HUBERT DR ING
IPC: F16F7/14
Filed: 1990-04-12
Abstract: The insulator for shock impuses incorporates a first section, such as a shield plate (1) especially, or a plate acting as a tool-support. It is joined to a second section, such as a plate (6) using at least one elastic component, such as a spring (7). The first section (1) is conencted to the second section (6) by at least one flexible piece, transmitting tensional forces, especially a steel cable (8,9). USE/ADVANTAGE - The insulator for shock impulses has springs possessing considerably lower dynamic rigidity and therefore higher efficiency.
Patent DE-4012632-A1 (DE)
Title: Appts. for fine-bubble gas-diffusion of liquids - by vertically feeding gas bubbles from pipe onto horizontal rotating plate and arms
Inventor: SCHUESSLER KARL-HEINZ
IPC: B01F3/04
Filed: 1990-04-20
Abstract: In appts. for fine-bubble gas-diffusion of liqs., gas bubbles are fed vertically upwards, from gas supply outlets onto a horizontal rotating diffuser plate which is fixed to a horizontal rotating diffuser arms. At least some of the outlets are located below the diffuser plate. USE/ADVANTAGE - Used for aerating wastewater. The diffuser plate distributes the gas bubbles horizontally, and the diffuser arms create a spiral circulation and break up the bubbbles to produce very fine bubbles. The appts. keeps the gas in the liq. for longer periods than the prior art.
Patent DE-4012726-A1 (DE)
Inventor: HENZLER ROLAND
IPC: B05C3/20
Filed: 1990-04-21
Abstract: In a glue applying device (5) for edge gluing machines with a wedge-shaped nozzle body (6) with application bores (9) for the adhesive, a follower slide (18) which rests against the nozzle body (6) is provided, said slide partially covering the application bores (9) and its follower surface (20) interacting with the plate-shaped workpiece (4). The follower slide (18) exactly matches the surface (21) of the workpiece (4) and thus controls the release of the width of adhesive as function of the height of the workpiece (4). <IMAGE>
Patent DE-4019224-A1 (DE)
Inventor: HEIDEMANN ROLF DR
IPC: H04W56/00
Filed: 1990-06-15
Abstract: In a data transmission system with radio stations and devices remote from it, e.g. in a cellular mobile radio system, the radio stations transmit radio signals and receive radio signals which in each case contain data signals. According to the invention, as many as possible are shifted from the fixed stations to the remote devices for processing functions. The radio signal to be transmitted from the radio station (2) is generated by generating in the remote transmission device (10) an unmodulated carrier and a carrier modulated with the data signal, where the carriers differ in their frequency by the amount of the carrier frequency of the radio signal (f1). These two optical carriers are transmitted to the radio station (2), where they are mixed in an optical receiver to produce the radio signal containing the data signal. A radio signal which is received in a radio station (40) is optically transmitted to a remote device (44) and is further processed only when it is there. This transmission is carried out in that an optical transmitter (41) present in the remote transmission device (44) generates an unmodulated optical carrier and transmits it to an optical modulator (43) located in the radio station (40). In the optical modulator (43), the light, modulated with the received radio signal, is transmitted back and the radio signal (f1') is obtained by optical heterodyne reception of the unmodulated and the modulated carrier (v0', v1'). 
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Patent DE-4023826-A1 (DE)
Inventor: MAIER STEFAN
IPC: F02M51/06
Filed: 1990-07-27
Abstract: In prior art electromagnetically actuatable valves the flow rate of the medium during the opening and closing processes is set by altering the force of the return spring acting on the valve closure. In addition, the finished valve is fitted with means of adjusting the return spring in the form of an easily accessible adjuster. In the process of the invention for adjusting the medium flow rate during the opening and closing processes of an electromagnetically actuatable valve, a compensating bolt (68) is inserted into a blind hole (61) of an inner pole (2) having a recess (62) on its periphery far enough to alter the magnetic force until the actual rate measured corresponds to the predetermined reference rate. The process of the invention is especially suitable for electromagnetically actuatable fuel injection valves in fuel injection systems.
Patent DE-4024877-A1 (DE)
Title: Sintered body having aluminium oxide matrix - with chromium oxide, zirconium and/or hafnium di:oxide of predominantly tetragonal structure and yttrium oxide as structure stabiliser
Inventor: BURGER WOLFGANG DIPL CHEM DR
IPC: C04B35/119
Filed: 1990-08-06
Abstract: Sintered body is made up of at least 70 vol% aluminium oxide matrix with 0.01-1.41 wt% dissolved chromium oxide with respect to the sintered body or 0.01-2.32 wt% chromium oxide with respect to the aluminium oxide. The body also contains 2-30 vol% corresponding to 3-79.1 wt% zirconium dioxide and/or hafnium dioxide in a grain size not exceeding 2 microns predominantly in a tetragonal modification. The zirconium dioxide and/or hafnium dioxide also contains 0.5-5.4 wt% yttrium oxide. USE/ADVANTAGE - As cutting plate for machining glass or glass ceramics. The tetragonal zirconium- and/or hafnium dioxide has improved stability in the matrix and simultaneously provides the body with greater hardness and wear-resistance.
Patent DE-4029397-A1 (DE)
Title: Answering machine with different texts for each of two telephone lines - uses different tape tracks for calls on different lines only after call checks
Inventor: SCHAEPE HELMUT
IPC: H04M1/65
Filed: 1990-09-17
Abstract: The machine has a call unit with pluggable groups, call pulse counter, and call release distributor. The reproduction unit has usual groups with 2 and part adjusting group and reproduction motion with power circuit in two- or four-track tape, and recording and reproduction units, acoustic time indicator, and control microprocessor. The text reproduction from the first or second tape track are used in accordance with the calls on the first or second telephone lines respectively. A check for the reproduction text, the use of one of the two reproduction text, and the engagement of the recording tape, is carried and only after the arrival of the call. ADVANTAGE - Several answering texts for each telephone line, with improved operation.
Patent DE-4032049-A1 (DE)
Inventor: SEIDEL REINHARD DR
IPC: C23F11/10
Filed: 1990-10-09
Abstract: A nitrite-free, aqueous wet temper pass agent that prevents staining of the rolls and corrosion of temper rolled sheet steel or galvanized sheet steel, contains at least one benzoylalanine of general formula (I) or its salts, at least one monocarboxylic and/or dicarboxylic acid, at least one alkanolamine, possibly an aromatic sulfonic acid and a water hardness complexant, the remaining being water. A process is also disclosed for temper rolling hoop-steel and galvanized hoop-steel with the disclosed wet temper pass agent.
Patent DE-4033976-A1 (DE)
Title: Underground vehicle-lifting platform - has two rams with interconnected annular and inner chambers forming synchronising circuits
Inventor: ISOGAI SHUNJI
IPC: F15B11/22
Filed: 1990-10-25
Abstract: The underground lifting platform for vehicle repairs has first and second lifting rams (17, 18). Each of these comprises an outer cylinder (1) fixed to the bottom of a trench (8), and with an annular top cover (1a), through which a coaxial inner cylinder (2) slides, this having an open bottom and a closed top cover, and an external flange (2a) round the bottom and a closed top cover, and an external flange (2a) round the bottom, so as to form with the outer cylinder a variable-volume annular chamber (2). A piston-type component (22) as a disc (5) inside the inner cylinder and fixed by a round tube (4) to the bottom of the outer cylinder, in which there is a first opening (20), thus forming an oil passage (13a) to the chamber (6) in the inner cylinder above the disc. The space below the disc is connected to the bottom part (7) of the outer cylinder, forming a working chamber (23). The latter is supplied with oil, simultaneously with that of the other ram, via a second bottom opening (19) from an oil tank (12b). USE - Lifting platform for vehicle.
Patent DE-4036872-A1 (DE)
Title: Drawing off continuously supplied material webs - has set of storage rollers with guide rollers to avoid material waste
Inventor: HANSSMANN ERICH DIPL ING
IPC: B65H20/34
Filed: 1990-11-19
Abstract: The device for drawing off web of strips of material constantly supplied from a production unit and wound onto a roller has at least one set of storage rollers mounted between a first set (1) of discharge rollers at the outlet of the production unit, and a second set (2) of discharge rollers mounted at a distance behind same in the delivery direction. One set of storage rollers has at least two guide rollers (3,4) which are mounted locally fixed one behind the other in a machine frame in a plane running parallel to the horizontal, vertical or inclined delivery direction. A futher storage roll (7) is movable at right angles to the delivery direction between an output position and an extended end position. These two positions of the movable storage rollers (7) are opposite one another either side of the delivery plane of the material web (10) wherein the output position is directly at the delivery end of the material web (10) and the extended end position is at a more or less great distance on the opposite side of the delivery plane. USE/ADVANTAGE - The material losses when changing over the rollers are avoided.
Patent DE-4037438-A1 (DE)
Title: Portable reinforced concrete foundation for post - is for post and has narrow shaft with baseplate, and basket
Inventor: ELLEBRACHT JOSEF DIPL ING
IPC: B28B7/30
Filed: 1990-11-24
Abstract: The foundation element is of reinforced concrete (F1), and has a basket (13) for monolithic imbedding in concrete of a post. The horizontal top of the element is smaller than its base. The basket is surrounded on the sides by a narrow shaft (12), and has a base plate (10), connected to the shaft via a sloping section (11). The horizontal profiles of this are height-dependant, so that the max. permissible support force at preset max. load, is mainly or completely reached, but not exceeded. ADVANTAGE - Uses less material, is simpler to manufacture.
Patent DE-4100772-A1 (DE)
Title: Undervoltage trigger for switch latch - has shape memory element coupled to release lever and tensioning force storer
Inventor: AULMANN MANFRED DIPL ING
IPC: H01H83/12
Filed: 1991-01-12
Abstract: A lever operates the firing latch. The shape memory element contracts above a set switching temp. It is constantly supplied from the drive voltage, and has a current passing through at which normally heats it to a temp. above the switch temp. Pref. the shape memory element is a memory wire which, upon shortening, subjects the trigger lever to a torque to tension the force store. ADVANTAGE - Low dissipation, and guaranteed triggering.
Patent DE-4111615-A1 (DE)
Title: Motor vehicle with central torque splitter for all wheel drive - providing uneven drive speeds for both axles with faster driven shaft carrying larger torque fraction
Inventor: BOLL WOLF DR ING
IPC: B60K17/346
Filed: 1991-04-10
Abstract: The central differential comprises an epicyclic gearing (1) with one central gear (5) driving one azle (7) and an outer gear (5, 8) driving the second axle (10). The pinions/bevel gears (15/21) that drive the two axles have different sizes and run at different speeds. The faster speed axle (10) thus takes the larger fraction of the total torque. If the stronger driven axle starts to loose traction progressively more torque is transferred to the other axle. The transfer of torque is controlled by a variable grip clutch (11). ADVANTAGE - Simple central diferential, progressive torque control.