baber/WOPTO huggingface dataset:
Patent DE-3610364-A1 (DE)
IPC: G01N27/416
Filed: 1986-03-27
Abstract: As the gas flows through a catalytic converter, the NOx is at least partially reduced catalytically by the NH3. The metered addition of the NH3 to the gas stream can be so adjusted to the NOx content of the gas stream that the unreacted NH3 content in the purified gas can be held at values below 5 ppm and at the same time, a degree of separation of NOx of over 80% is guaranteed in practice. The object of the invention is furthermore to provide an appliance with which the values measured for NH3 in the purified gas necessary for carrying out the method can be obtained rapidly, reliably and simply, thus enabling a precise, flexible and continuous metered addition of NH3 to the exhaust gas before the catalytic reduction of the NOx. This is achieved by continuously measuring the NH3 content of the gas stream at a point downstream of the catalytic reduction of NOx using at least one electrochemical cell containing at least one solid subcell which incorporates material which conducts oxygen ions and generates electrical signals as a function of the NH3 concentration, by automatically evaluating the measured signals electronically in a computer, calculating the NH3 concentration values from the measured signals and comparing the calculated NH3 concentration value with the values of a design previously fed into the computer, and by automatically controlling the flow of the NH3 feed to the gas stream upstream of the catalytic reduction using the computer as a function of the differences between the calculated values and the design values.
Patent DE-3615118-A1 (DE)
Title: Tracklaying gear
Inventor: FABIAN HORST
IPC: B62D55/065
Filed: 1986-05-03
Abstract: In a travelling gear unit for heavy loads, in particular for a breaker's plant, the said travelling gear unit having at least three tracklaying units (1) which are arranged on the side of the substructure (4) of the load so as to be capable of swivelling and so as to be vertically adjustable by means of hydraulic lifting cylinders (8), a more economical and reliable design is achieved in that the lifting cylinders (8) are supported between a swivel arm (2) which is connected to the substructure (4) so as to be capable of swivelling about a vertical axis (6) and a rocker (3) which is coupled to the said arm (2) so as to move about a horizontal axis (7), the tracklaying units (1) being preferably constructed as double tracklaying units. <IMAGE>
Patent DE-3615575-A1 (DE)
Inventor: HAHN HELMUT KARL
IPC: B23K9/02
Filed: 1986-05-09
Abstract: An improved welding device with supporting elements for external welding of circular seams in abutting tube sections or curved tube components, a plurality of curved supporting elements forming a complete annular arrangement which is flexibly preloaded and pushes outwards against the inner tube surface in the welding area between tube sections abutting end to end. There is no separate tube-clamping mechanism; on the contrary, there is only a double-acting fluid cylinder which is fitted between two mounting shoes carrying the supporting-element arrangement and performs a double function owing to the fact that the requisite radial force is applied for aligning the tube sections and for the means for expanding and contracting the supporting-element arrangement. A novel outer clamp element assists the very accurate positioning of the device and the spacing of the joint gap.
Patent DE-3618159-A1 (DE)
Title: Transmission/reception directional filter (T/R cell)
Inventor: FRAISSE HANS-JUERGEN DIPL ING
IPC: H01P5/12
Filed: 1986-05-30
Abstract: According to the invention, a Wilkinson divider is used for implementing a filter which is very small, can be implemented technologically simply and is provided especially for projectile fuzes, such that the free limbs, which are connected via a load-compensating resistor, of two quarter-wave lines which are connected together at a junction point are connected to the reference electrode on the one hand via the transmission oscillator and on the other hand via the reception diode, while the antenna which is common to both devices (oscillator and diode) is connected to the junction point of the two quarter-wave lines.
Patent DE-3625201-A1 (DE)
Title: Exchangeable grinding tool unit
Inventor: MUSHARDT HEINRICH DR
IPC: B24B53/12
Filed: 1986-07-25
Abstract: An automatically exchangeable grinding tool unit, in particular a dressing roll unit, consists essentially of a support element (3) on which a sleeve-shaped part (2) which accommodates the dressing roll (1) is rotatably mounted by means of a bearing arrangement (4, 6, 7, 8). Connected to the rotatable part (2) is a drive part (11), the drive shaft (11b) of which is preferably passed through the support element (3, 3a) and is equipped with a coupling part (16) at the output-side end. The coupling of this tool unit to a holding part (19) of the machine takes place via coupling faces (22, 24 and 21, 23) on the holding part (19) and on the support element (3), respectively, in the form of a short conical connection. Simultaneously with this coupling take place automatic establishment of the drive connection via the coupling (16, 16a) and also, if appropriate, automatic connection of supply lines (oil, air). Clamping and fastening means (26) are provided to clamp the tool unit and the holding part (19) together. <IMAGE>
Patent DE-3640014-A1 (DE)
Title: Method and apparatus for dressing grinding wheels to approximate involute profiles and involute-like profiles
Inventor: RUF GEORG
IPC: B24B53/08
Filed: 1986-11-24
Abstract: The invention relates to a method and apparatuses for dressing grinding wheels to approximate involute profiles and to involute-like profiles. Such grinding wheels are required for the form-grinding of internal and external gears and ring gears, and also for the form-grinding of broaching tools with which such gears are to be produced. It uses the fact that an involute profile can be approximated by an arc of an ellipse from the region between major vertex and minor vertex. Apparatuses with which a dressing diamond is guided on a corresponding arc of an ellipse, in axial section, over the surface to be dressed are used as dressing apparatus. To this end, a dressing tool which acts on an arc of a circle is guided perpendicularly over the axial section. In this case, the vertical through the radius of curvature of the arc of a circle is set at such an inclination with respect to the axial-section plane and the rotational plane of the grinding wheel that the projection of the arc of a circle on to the axial-section plane in the region to be dressed is the desired arc of an ellipse. Rotating dressing diamonds and dressing rolls and also fixed dressing edges in the shape of an arc of a circle are used in this embodiment as dressing tool.
Patent DE-3641693-A1 (DE)
Title: Handrail for railings
Inventor: GLOCKNER DIETER ING GRAD
IPC: E04F11/18
Filed: 1986-12-06
Abstract: In the known, in particular metal handrails for spiral staircases or parapets, there are arranged, between the straight handrail portions, special bow-type elements which either can only be fastened by welding or produce a comparatively unsteady connection which impairs the stability of the handrail. Each articulation (7) is formed from two hat-shaped articulation parts (8, 9) which can be plugged axially displaceably on two neighbouring handrail portions (6) and can be fastened thereon by clamping and can be connected to one another in an adjustable angle position via mutually interacting articulation surfaces (11, 12). Said handrail can be prefabricated and mounted easily and rapidly. The handrail is stable and has an attractive appearance. <IMAGE>
Patent DE-3644512-A1 (DE)
Title: Snail and slug barrier
Inventor: KOPFINGER RUPERT
IPC: A01G13/10
Filed: 1986-12-24
Abstract: Published without abstract.
Patent DE-3702677-A1 (DE)
Title: Reinforcing member and process for the production thereof
Inventor: MEIER HANS ROBERT
IPC: E04B1/00
Filed: 1987-01-30
Abstract: A reinforcing member, of which at least part is intended to remain, after concreting, in an environment which is aggressive to ferrous metals, is distinguished in that the surface of said part is provided with a protective metal coating (11, 12) in order to protect it from external influences. The coating, e.g. tubular (11, 12) may consist of stainless steel, in particular V4A, of a nonferrous metal or of lightweight metal. A zinc sheathing produced from platelets constitutes a cathodic protective layer. On using a tube (11; 12), the latter can be pressed, at its two ends, onto the reinforcing member. This results in a corrosion-protected region of the reinforcing member which may be exposed, without negative effects, to the access of an environment which is aggressive to ferrous metals. <IMAGE>
Patent DE-3705444-A1 (DE)
Title: Safety device for low-pressure cooking pots
Inventor: BAUMGARTEN GERD-DIETHARD
IPC: A47J27/09
Filed: 1987-02-20
Abstract: The subject of the application is a safety device for cooking pots operated at low pressure, the lids of which are equipped with a sealing lip for sealing off lid and pot. The safety means has a valve body which is prestressed by means of a spring and is held pressed against the valve seat at a predetermined pressure. To prevent the low pressure in the cooking pot from exceeding a critical value and, on the other hand, to make it possible to open, without problems and without means of force, even the cooled cooking pot in which a certain low pressure prevails, the safety device is inserted into the lid (2) of the pot, the effective cross-section of the valve body (10) being matched to the compression spring (16) in such a way that the valve opens automatically when a preset pressure difference is exceeded and that the valve body can be manually actuated (Fig. 1). <IMAGE>
Patent DE-3705950-A1 (DE)
Title: Method for printing data on an information carrier and hand-held printer for this purpose
Inventor: OBSTFELDER GUENTHER
IPC: G07B17/00
Filed: 1987-02-25
Abstract: The invention relates to a method for printing data on an information carrier by means of a hand-held printer (1, 33) which has a thermal printing plate (8, 29), a computing and control unit (19), and an input unit (5). The hand-held printer (1, 33) is placed by hand with its thermal printing plate (8, 29) on a printable surface of the information carrier and a relative movement is carried out between the hand-held printer (1, 33) and the information carrier in such a way that the thermal printing plate (8, 29) engages with sliding friction on the information carrier, but can be removed from the information carrier at any time by lifting the hand-held printer (1, 33), during which engagement time the data are printed onto the information carrier by direct thermal printing or thermal transfer printing. The hand-held printer is distinguished by the fact that it no longer has an integrated information carrier, and that it can be inserted in a stationary receiving unit (20) which has an integrated information carrier (23) which is moved by means of a feed device (28) of the receiving unit (20). <IMAGE>
Patent DE-3709523-A1 (DE)
Inventor: BRAEGAS PETER DIPL ING
IPC: G08G1/09
Filed: 1987-03-23
Abstract: An autombile radio capable of receiving VHF entertainment programs from a station in which traffic information signals are modulated in a 57 kHz subcarrier is equipped with two decoders for the 57 kHz subcarrier signals, one decoder for traffic information signals modulated in an analog fashion on the subcarrier and another decoder for digital signals modulated on that subcarrier by double-sideband suppressed-carrier modulation. The first decoder is for a system already in use in which traffic information, at least if urgent, is intended to override the entertainment program, and the receivier has the usual circuits for that override. The second decoder is for a system that is planned but not yet in use in which the received digital signals can call out one or more standard messages or message portions from a read-only memory and either the memory addresses or the memory outputs are storable. They are made audible by speech synthesizer and, because they are stored at least until the next message comes in, can be recalled if the user wishes. The receiver switch for turning on the traffic information feature is a selector switch with positions selecting either type of decoder and, in a modification designed for where both systems are available, the corresponding switching system gives priority to the presently existing system, since the output of the other system will not be lost and can be reproduced when the signals of the existing system have ceased.
Patent DE-3710013-A1 (DE)
Title: Diaphragm positive-displacement pump, in particular for abrasive, corrosive liquids with suspended particles, or the like
Inventor: TAGLIABUE GIANLUIGI
IPC: F04B43/073
Filed: 1987-03-26
Abstract: This diaphragm positive-displacement pump possesses a main casing (2) whose interior forms one or more pump chambers (3 or 4), in which a diaphragm (5, 6) is installed. This diaphragm divides the pump chamber (3 or 4) into two sealed-off half-chambers (7, 9 or 8, 10), of which a first half-chamber (7 or 8) is connected to a control fluid under pressure, and a second half-chamber (9 or 10) is connected selectively via one-way valves (17 or 18) with a suction line (13 or 14) and with a discharge line (15 or 16) for the liquid being pumped. The diaphragm (5 or 6) in the pump chamber can be distorted in a controlled manner by a working piston (22) that can move in a control chamber (21), and that pumps control fluid into, or sucks it out of, the first half-chamber (7 or 8), in order to reduce or increase the effective volume of the second half-chamber (9 or 10). The working piston (22) is linked operatively to a pneumatic piston (23); the latter is driven with an alternative motion by a fluid under pressure in a drive chamber (24) formed in the interior of an auxiliary casing (25) associated with the main casing (2). <IMAGE>
Patent DE-3712772-A1 (DE)
Inventor: IZAT ANDREW
IPC: A63B49/02
Filed: 1987-04-15
Abstract: An open-throat games racket is provided with a plurality of parallel grooves (20) around the shaft (12) of the racket immediately adjacent the throat (11). The grooves may make an acute angle (a) with the transverse mid plane (X...X) of the shaft (12). <IMAGE>
Patent DE-3712825-A1 (DE)
Inventor: KOLBECK WINFRIED DIPL CHEM DR
IPC: A23L27/26
Filed: 1987-04-15
Abstract: PCT No. PCT/DE88/00230 Sec. 371 Date Dec. 14, 1988 Sec. 102(e) Date Dec. 14, 1988 PCT Filed Apr. 13, 1988 PCT Pub. No. WO88/07822 PCT Pub. Date Oct. 20, 1988.The invention relates to a mineral salt-free total protein degradation product whose production and use is as a meat flavor precursor and protein source especially in animal feed. By mineral acid hydrolysis, a protein material, preferably from keratin, is obtained with subsequent electrolytic neutralization and reduction.
Patent DE-3713293-A1 (DE)
Title: Heater element-thermostat valve with heat meter
Inventor: POHLING WOLF-DIETRICH DR
IPC: G05D23/20
Filed: 1987-04-18
Abstract: The heat meter of the heater element-thermostat valve consists of one temperature sensor for the flow and one for the return of the heater element as well as an on/off valve precontrolled by a signal transmitter, for example, a room thermostat via a control valve and switched by the energy of the fluid current for blocking or letting the fluid current pass through and of an electronic unit, which determines the amount of heat from the values of the temperature differences during the opening times of the on/off valve. The movable valve element of the control valve for the on/off valve is held in the closed position by a closing spring and in the open position by a permanent magnet. The opening and closing movements of the control valve element are introduced by switching on an electromagnet, and the coil of the electromagnet is connected via a power supply circuit to the device battery. In the power supply circuit, at least one capacitor is connected in, which is first charged from the battery, is then separated and is finally connected to the coils of the electromagnet. Consequently, a capacitor voltage is available for the discharge, which with a suitably long charging time is independent of the age of the battery. The fluid current is held constant by a volume current regulator.
Patent DE-3718172-A1 (DE)
Title: Encapsulation of an electronic component
Inventor: RETZ GUENTER DIPL ING
IPC: H05K5/00
Filed: 1987-05-29
Abstract: The invention relates to encapsulation of an electronic component (19), which encapsulation consists of a housing lower part (3) and a housing upper part (2) which can be connected to it. The opening (13) through which the electronic component (19) which is inserted into the encapsulation is exposed is located in the housing lower part (3). It is possible to protect sensitive electronic components (19) against dirt and mechanical destruction, with the aid of the encapsulation. In order that the electronic components (19) are pressed particularly firmly against the housing lower part (3), a web (60) is provided on the housing upper part (2). Another web (66) is arranged on the housing lower part (3), in order to produce strain relief for the electrical supply cable (27, 61, 62, 63, 64, 65) to the electronic component (19) (Fig. 3). <IMAGE>
Patent DE-3723352-A1 (DE)
Title: Method for producing building bricks
Inventor: DUESTER HEINZ ING GRAD
IPC: B28B3/00
Filed: 1987-07-15
Abstract: The invention relates to a method for producing building bricks, in particular sand-lime bricks, in a press having an upper and lower ram, between which the filling mass is filled into the mould, in which method spikes penetrate into the mould through one ram so as to form cavities in the green brick. The spikes move into the mould only after it has been completely filled with filling mass. Thereafter, the rams produce the pressing force.
Patent DE-3725013-A1 (DE)
Inventor: BOEHMER FRIEDHELM
IPC: F16D1/06
Filed: 1987-07-29
Abstract: In the device, the rings 5 are slipped onto the shaft 2 axially and connected firmly to the shaft 2 in terms of rotation, via releasable fixing means 15b, 17, solely by compressive stresses between plane-parallel front faces 7 and 8 of flange elements 9 and 10 arranged at and/or on the shaft 2. For this purpose, one flange element 10 is guided in such a way as to allow axial displacement relative to the shaft. The flange elements 9 and 10 are clamped via their front faces 7 and 8 against those front faces of the rings 5 which face the latter by a tie rod 15 which engages on the shaft 2 in a position of axial alignment with the said shaft and protrudes from at least one end 2c of the shaft. <IMAGE>
Patent DE-3726439-A1 (DE)
Title: Self-righting sailing boat
Inventor: RIENKS GERD
IPC: B63B41/00
Filed: 1987-08-08
Abstract: Sailing boats heel in the wind, reducing the propulsive thrust. Catamarans achieve a higher speed due to their sail always being vertical, but have a second hull which generates an avoidable resistance in the water. The present invention solves the problem by having the keel constructed to swivel and with an aerofoil section, which can be swivelled to the right or left as desired. Thus a righting moment is created that is controlled by pendulum sensors. The self-righting sailing boat thus equipped is capable of converting winds into speed better, which is important for races.
Patent DE-3728130-A1 (DE)
Title: Subtraction circuit in 54321 code
Inventor: MERKLE PAUL
IPC: G06F7/50
Filed: 1987-08-22
Abstract: The subtraction circuit according to the subject of the invention is a true subtraction circuit, because it has a main circuit (2), which is a true subtraction circuit. This main circuit (2) processes only the value 2, because this reduces the size of the main circuit (2) to a quarter. The value 1 is processed in the dual full subtractor (6). The value 5 is processed in the dual full subtractor (7). Circuit (3) is a blocking circuit, which passes on only the high potential with the lowest value of the high potentials which occur in the output area of the main circuit (2). Circuit (4) is not a one-downwards shift circuit but a one-upwards shift circuit, because no possible subtrahend with the value 1 is processed using this circuit, but a possible partial minuend with the value 1 is processed. <IMAGE>
Patent DE-3729917-A1 (DE)
Title: Method of lifting structures by means of jacking piles
Inventor: SCHAFFRATH RUDOLF
IPC: E02D35/00
Filed: 1987-09-07
Abstract: In a method of lifting structures by means of jacking piles, working pits are first of all made starting from apertures in the floor of the structure. From the working pits, jacking piles are placed in the soil. Piston/cylinder units are put onto these jacking piles. The piston/cylinder units return the structure from an oblique position into the desired position, in the course of which lowering in the areas of the structure can also be effected. After a first lift, pressure plates are placed on the respective jacking pile. Then a supporting element is put around the pressure plates onto the jacking pile. The supporting element projects radially beyond the jacking pile. After the piston/cylinder unit is extended, in each case spindles are inserted which take the bearing force of the piston/cylinder unit. The pressure plates are replaced by a pile element. The working pit and the hollow spaces resulting during the lifting of the structure are filled with concrete. The hollow space remaining directly above the jacking pile is also filled with concrete, this concrete being separated by a separating sheath from the concrete filling the working pit and the hollow spaces (Fig. 1). <IMAGE>
Patent DE-3732615-A1 (DE)
Title: Processing system for a portable electronic device
Inventor: IIJIMA YASUO
IPC: G07F7/10
Filed: 1987-09-28
Abstract: The invention concerns a processing system for a portable electronic device, in which an IC card (1) sends first timer data to an IC card read-write unit (2). This data is included in a response to a reset signal, and establishes a time, after the IC card sends the reset signal response to the IC card read-write unit (2) and until a command is received from the IC card read-write unit (2). The IC card (1) receives a first command from the IC card read-write unit (2), and carries out corresponding processing. The IC card (1) also sends second timer data, which is included in the reset signal response, and establishes a time, after the processed result is sent to the card read-write unit (2) and until the next command is received from the card read-write unit (2). The card read-write unit (2) puts the first timer data into a timer, and the second timer data into a memory. The card read-write unit (2) sends the first command to the IC card (1), depending on a timeout signal from the timer. When the card read-write unit (2) receives the processed result from the IC card (1), it reads the second timer data from the memory and puts the data which it has read into the timer. The card read-write unit (2) then sends the next command to the IC card (1), depending on the timeout signal from the timer. <IMAGE>
Patent DE-3733854-A1 (DE)
Title: Bonding dowel
Inventor: FISCHER ARTUR PROF DR
IPC: F16B13/14
Filed: 1987-10-07
Abstract: Plastic dowels are used in bores for fastening frames or laths or the like. By means of a fastening screw, the dowel can be expanded and braced in the bore. In brittle or porous masonry work, the use of bonding mortar may be necessary in order to achieve the necessary retaining values for a fastening element. The bonding dowel has a region which is formed as a guide channel and is adjoined at the end by an expansion region with radially aligned openings. Bonding mortar or the like can be injected through the guide channel, it subsequently emerging at the openings of the expansion region. A fastening screw inserted into the bonding dowel effects preliminary fastening due to the expansion of the dowel, the maximum retaining values only being achieved after the bonding mortar has set.