baber/WOPTO huggingface dataset:
Patent DE-3125561-A1 (DE)
Title: System for heating two liquid products, for example milk and cream, which are each moved in a circuit
Inventor: WITTNEBEN FRIEDO
IPC: A01J11/12
Filed: 1981-06-29
Abstract: The invention relates to a system for heating two liquid products, for example milk and cream, which are each moved in a circuit, there being arranged in the milk-conducting circuit a preheater (4), a reheater (6) arranged downstream of the latter and a steam-loaded heater (7), through which elements the milk, as a heat-emitting medium, is guided and the milk heated in the heater (7) is guided, as a heat-emitting medium, first into the reheater (6) and then into the preheater (4) and is cooled in a cooler (9) after leaving the preheater (4). The heated milk leaving the preheater (4) has the cream taken from it in a cream separator (5) and the creamed milk is fed for heating into the reheater (6), a preheater (10) and a steam-loaded heater (11) arranged downstream being provided in the circuit receiving the cream, the heated cream being fed as a heat-receptive medium from the said heater (11) into the preheater (10) and being cooled in a cooler (14). The cream leaving the cream separator (5) is fed as a heat-emitting receptive into the preheater (10). The object of the invention is to improve the thermal efficiency of the system and to reduce the amount of power required by the cooling pumps. This object is achieved according to the invention in that a heat exchanger (13) is provided in the circuit receiving the cream, through which exchanger (13) the heated cream leaving the preheater (10) of this circuit is guided as a heat-emitting medium, and in that a subsidiary stream (15) of milk which is diverted upstream of the preheater (4) of the milk circuit is introduced into the heat exchanger (13) and mixed with the stream of milk fed into the cream separator (5). The ratio of the quantity of the subsidiary stream (15) of milk to the quantity of creamed milk is advantageously 1:1. <IMAGE>
Patent DE-3126633-A1 (DE)
Title: Method and device for treating dental ceramic compositions
IPC: A61C13/12
Filed: 1981-07-06
Abstract: A method and device for treating dental ceramic compositions of a ceramic powder treated with liquid and, where appropriate, a colouring agent, as well as devices suitable therefor, are to be improved in such a way that mixing of ceramic compositions in dentistry no longer requires addition of a comparatively high proportion of liquid; moreover, sufficient compaction and favourable handling during application and modelling are to be achieved. For this purpose, the ceramic composition is irradiated with sound in the frequency range above 20 kHz, predominantly in the rhythm of an electric alternating field. The device is distinguished in that a handpiece (1) is provided with at least one piezoelectric element (15, 16) and the working part thereof, for example a modelling blade (2) is arranged so as to be movable by sound in the frequency range above 20 kHz. In addition, a mixing vessel (32) is to be pivotably connected with at least one piezoelectric element. <IMAGE>
Patent DE-3126678-A1 (DE)
Title: Supercharged internal combustion engine subjected to strong load fluctuations and method for its operation
Inventor: ATHENSTAEDT GERNOT DIPL ING
IPC: F02B37/00
Filed: 1981-07-07
Abstract: In a supercharged internal combustion engine (1) subjected to strong load fluctuations a device (12) is provided for introducing water into the exhaust manifold (5) in the direction of flow upstream of the turbine (3) of an exhaust turbocharger (2). The said device has means (16, 17, 18), controllable as a function of the load, by which the water, which can be drawn from a water circuit, for example the cooling-water circuit for an intercooler connected into the charge air line, can be injected for a limited time into the exhaust manifold (5) during an acceleration phase of the internal combustion engine in order to improve its acceleration behaviour. As a result of this water which can be injected into the exhaust manifold (5) during an acceleration phase, the exhaust gas pressure and hence also the energy supply to the turbine (3) of the exhaust turbocharger (2) increases so that as a direct consequence of this the air supply to the internal combustion engine (1) also increases relatively rapidly, thereby substantially improving its acceleration behaviour by simple means. <IMAGE>
Patent DE-3127645-A1 (DE)
Title: Cooling system for a liquid-cooled internal combustion engine, especially for motor vehicles
Inventor: PFEFFINGER HARALD DIPL ING
IPC: F01P7/16
Filed: 1981-07-13
Abstract: A cooling system for a liquid-cooled internal combustion engine (1, 23), especially for motor vehicles, comprises a cooling circuit running by way of the internal combustion engine (1, 23), a radiator (2, 24) and a pump (9, 31) and a short-circuit line (15, 37) bypassing the radiator (2, 24), the flow cross-section of which line can be adjusted by a valve control device (11, 33) as a function of an operating parameter of the internal combustion engine (1, 33). So that the pump (9, 31) only takes up the power necessary to meet the operating conditions of the internal combustion engine (1, 23), the pressure side (8, 30) of the pump (9, 31) can be connected to the intake side (7, 29) of the pump (9, 31) by the short circuit line (15, 37). <IMAGE>
Patent DE-3131442-A1 (DE)
Title: Pump
Inventor: OGAWA HITOSHI
IPC: F01C21/08
Filed: 1981-08-07
Abstract: A rotor of a pump is described, which rotor can be manufactured according to a sintering process and thus consists of a sintered material, and whose passages in the thick-walled region have an elongated shape as seen in cross-section.
Patent DE-3131557-A1 (DE)
Inventor: BOERNER ROLAND
IPC: B24B3/16
Filed: 1981-08-08
Abstract: A scanning finger for a scanning device of a machine for automatically sharpening tools has a horizontal slide for receiving a tool to be ground and a vertical slide carrying at least one grinding spindle. The scanning finger has a scanning face, which is substantially horizontal and limited by and undercut to rest on the free face of a tool tooth to be ground, as well as a face which is downwardly offset from the scanning face and is intended for ascertaining the cutting face of the tooth. In order to make it possible to scan the cutting face at a distance from the original cutting edge, the face for ascertaining the cutting face of the tooth is undercut in the direction of movement of the horizontal slide and below the horizontal scanning face, and below the undercut it has a measuring edge to rest on the cutting face.
Patent DE-3135282-A1 (DE)
Title: Ultrasonic distance meter for use in motor vehicles and the like
Inventor: VANCHA JOHN
IPC: G01S15/931
Filed: 1981-09-05
Abstract: The invention relates to an ultrasonic distance meter, in particular for vehicles, in a multiplex circuit having a resettable digital counter. The digital counter receives a number of pulses from an oscillator and forms a counter output signal for indicating the stored count of the number of pulses. A number of logic gates are connected to the digital counter and are controlled by it. The logic gates are connected to a number of ultrasonic transducers which are successively excited by the logic gates in dependence on the count stored in the digital counter.
Patent DE-3137284-A1 (DE)
Title: Automatic demonstration apparatus of an electronic musical instrument
Inventor: NAKADA AKIRA
IPC: G10H1/26
Filed: 1981-09-18
Abstract: This apparatus exhibits a memory (12) for storing the demonstration data which consists of musical note data which predetermine the sequence of an item of music to be played, and control data for controlling the type of generation in which the musical tones are generated, for example with respect to tonal colour and modulation effects. The type of generation of the musical tone signals which are generated by a tone-forming circuit on the basis of the musical note data read out of the memory (12) is automatically and/or arbitrarily controlled by control data read out of the memories. <IMAGE>
Patent DE-3143034-A1 (DE)
Title: Regulating and control unit for hydrostatic machines
Inventor: HELLE KONRAD
IPC: F04B49/12
Filed: 1981-10-30
Abstract: The invention relates to a regulating and control unit for hydrostatic machines with variable piston displacement, the motion transformer of which is frictionally clamped by a hydraulically actuated piston and a mechanical spring opposed to this piston. The aim and object of the invention is to create a regulating and control unit, the actuating element of which for receiving the spring assembly is designed to ensure the control characteristic without guide pistons, thereby making it possible to reduce the costs of material and manufacture. According to the invention this object is achieved by spring elements which are arranged on a guide bolt, which bears by way of a joint on the motion transformer and on the opposite side is axially movable and pivoted in a clamping device. The invention is used for hydrostatic machines designed as pumps or motors, for example radial piston pumps, the piston displacement/eccentricity of which is variable. <IMAGE>
Patent DE-3204603-A1 (DE)
Title: Regulator for regulating the gain of an amplifier
Inventor: SCHIESS PETER ING GRAD
IPC: H03G3/20
Filed: 1982-02-10
Abstract: The invention relates to a regulator for regulating the gain of an amplifier, comprising a capacitor reservoir for the manipulated variable, which is connected to an actual-value/setpoint comparator via a switching device. In such a regulator, the largest possible long-time stability of the regulator is to be achieved in the event of a failure or low level of the control reference signal. For this purpose, the invention provides that the terminal of the switch facing the actual value/setpoint comparator can be applied to a potential corresponding to the centre control position, which is at least approximately equal to that at centre control opposition or that two capacitors, forming the reservoir, have at least approximately the same insulation resistance. The regulator can be advantageously used, in particular, in pilot-controlled amplifiers in electrical communication technology. <IMAGE>
Patent DE-3205170-A1 (DE)
Title: Corona discharge device for charging the photoconductive layer of the electrophotographic copier
Inventor: HARTWIG KARL DIPL PHYS
IPC: G03G15/02
Filed: 1982-02-13
Abstract: In an electrophotographic copier, the charging level of the surface of the recording carrier (10) is matched to the operationally induced fatigue of its photosensitive layer by regulating the charging voltage of the relevant Corona discharge device (9) by means of a temperature-dependent resistor (Rh) which is heated by means of a heating resistor (Rl) located in an operating circuit of the copier, the time constant of the variation in the resistance of the temperature-dependent resistor (Rh) corresponding at least approximately to the time constant of the fatigue of the photosensitive layer. In order to match these time constants, the temperature-dependent resistor (R) can be surrounded by an insulating layer (19), or can be cooled by means of a cooling fan (16) located in a closed circuit of the copier. <IMAGE>
Patent DE-3208925-A1 (DE)
Title: Control for plough installations
Inventor: PLICH HANS
IPC: E21D23/04
Filed: 1982-03-12
Abstract: Coal ploughs guided on the conveyor on the coal-face side are controlled by means of supporting devices, for example hydraulic cylinders, linked on the goaf side to the spill plates of the conveyor. To avoid wear and to avoid an open bottom strand, the control device provides for the supporting element (2) to be designed as a spring-steel plate bent at right angles, the angled flange (19) of which is fastened between conveyor (1) and plough guide (8), and for a sealing plate (17) sliding on the spring-steel plate to be provided on the goaf side below the spill plates (3) and in such a way as to be pivotable relative to the latter in the longitudinal direction of the conveyor. <IMAGE>
Patent DE-3209456-A1 (DE)
Title: Device for producing strips free of surface coating agent when applying surface coating agent to sheets or endless webs
Inventor: GREFF OSKAR
IPC: B05C1/16
Filed: 1982-03-16
Abstract: Device for producing strips free of surface coating agent when applying surface coating agent to sheets or endless webs by means of application rollers, stripping elements constructed as two-armed swivel levers being mounted so as to be laterally displaceable with a swivel axis extending parallel to the axis of the application roller on a carrier attached in front of the application roller on the surface coating machine, the front stripping leg of which stripping elements, which is bent at right angles, pressing obliquely from below against the application roller, a transversely penetrating draining opening being provided in the carrier leg which is bent at right angles and located at a short distance from the application roller.
Patent DE-3214734-A1 (DE)
Title: Device for measuring the milk quantity and/or monitoring the milk flow and process for measuring the quantity of milk yielded by a cow during a milking operation and/or for monitoring the milk flow during the milking operation using the device
IPC: A01J5/01
Filed: 1982-04-21
Abstract: For measuring the amount of milk yielded by a cow during a milking operation or for monitoring the milk flow during the milking operation, an air separation chamber (1) to which a vacuum can be applied and which is connected to a milk feedline (2) and a measurement chamber (3) connected to the air separation chamber (1) via a closable milk inlet opening (4) and having a milk outlet (5) are arranged one above the other. A measuring device (8) with a magnetic float (10) guided on a tube (13) and at least one switch contact (9) actuatable by the float (10) depending on the height of the milk level is provided in the measuring chamber (3). The measuring device is connected to a counting device and/or display device (12) which receives pulses from the switch contact or the switch contacts. The magnetic float (10) is guided on a vent tube (13) which terminates at a distance from the milk inlet opening (4) and has a vent valve (14). The vent tube bears in the measurement chamber (3) at the air outlet end (13a) a separating valve (15), preferably a disc valve, which releases the milk inlet opening (4) in the case of a vacuum in both chambers (1, 3) and closes said opening upon venting, in a manner so as to be movable through a guide tube (16) projecting into both chambers (1, 3) and vertically movable in the vent tube (16). <IMAGE>
Patent DE-3217173-A1 (DE)
Title: Castor with fixing device
Inventor: HAUSSELS BERTHOLD
IPC: B60B33/02
Filed: 1982-05-07
Abstract: Castors for devices which can be equipped therewith so as to be mobile are provided, for large stresses, with a swivel bearing disc (4) which is mounted in a steering head (1) over the diameter of large ball bearing rings (5, 6), the steering fork (8) which bears the wheel (7) having to be attached with its back (8') to the underside of said bearing disc (4). A wheel fixing lever (13) which is resiliently supported in the hollow (8''') of the steering fork (8) serves to block the rotation of the wheel (7), whilst a device which is provided with locking elements (12, 18) to be placed in mutual engagement, a central pin (10) which penetrates a central bore (4') in the swivel bearing disc (4) and in the steering fork back (8'), and an actuation element (13'') serves to lock the swivelling movement of the steering fork (8). In order, at the same time, to obtain a compact design which is easy to operate, in particular with respect to the fixing mechanism, the actuation field (13'') is provided, at the end of the wheel fixing lever (13) which protrudes rearwards over the back (8') of the steering fork, in order to lock the latter in its position pressed against the circumference of the wheel, in which case it simultaneously brings about the locking of the swivelling movement by means of the central pin (10). <IMAGE>
Patent DE-3227072-A1 (DE)
Title: Intake pipe for multi-cylinder internal combustion engines
Inventor: DOMMES WERNER DIPL ING
IPC: F02M26/00
Filed: 1982-07-20
Abstract: The invention relates to an intake pipe for multi-cylinder internal combustion engines with a distributor chamber which is situated downstream of a throttle valve and from which at least two branch pipes lying essentially in one plane and branching off one behind the other lead to the cylinders. In order to provide an intake pipe which is favourable in terms of flow dynamics and guarantees uniform charging of the cylinders, the pivoting axis of the throttle valve is aligned essentially in this plane and the branch pipes are arranged offset relative to one another out of this plane such that the air flow divided by the throttle valve approximately strikes the openings of the branch pipes. On the valve portion situated on the downstream side when the valve is tilted, the throttle valve is provided with a baffle which widens its front side. Opening into the region over which the baffle passes is a pipe which serves to control an exhaust gas recirculation device of the internal combustion engine.
Patent DE-3228524-A1 (DE)
Title: Inductive proximity switch
Inventor: MAGORI VALENTIN DIPL PHYS
IPC: H03K17/14
Filed: 1982-07-30
Abstract: Inductive proximity switch with evaluation of the imaginary part of the detuning occurring. In particular, at least two magnetic-field coils (2, 22) are provided and operated in a compensating circuit. <IMAGE>
Patent DE-3228542-A1 (DE)
Inventor: PREIDEL WALTER DIPL CHEM DR
IPC: G01N33/48
Filed: 1982-07-30
Abstract: 1. A method of determining the concentration of electrochemically transformable substances in a solution by means of a measuring cell having a measuring electrode, wherein the measuring electrode is impressed with a potential varying with time in potential steps within a potential interval and wherein this potential has superposed on it an alternating voltage of predetermined amplitude and frequency, and wherein at least for one potential step the real and/or the imaginary component of the impedance of the measuring electrode is determined and the concentration is determined therefrom.
Patent DE-3238364-A1 (DE)
Title: Dispersions, a process for their preparation, and their use
Inventor: REICHERT GUENTHER DR
IPC: A01N57/14
Filed: 1982-10-16
Abstract: Novel aqueous dispersions which comprise   - the active substance O-ethyl O-(4-methylthiophenyl) S-propyl dithiophosphate, if appropriate as a mixture with other active substances which are suitable for pest control,   - at least one non-ionic surfactant,   - at least one acylated polyglycol ether,   - at least one aqueous polyvinyl acetate latex and   - optionally other additives, a process for the preparation of these dispersions, and their use for controlling pests.
Patent DE-3238667-A1 (DE)
Inventor: LIBHAFSKY WILHELM
IPC: F04B15/04
Filed: 1982-10-19
Abstract: 1. Displacement component of a piston pump for abrasive and/or corrosive liquids, comprising a piston rod and a piston made of oxide-ceramic material that is secured to the rod by means of a detachable connection, the piston having a blind hole extending in the direction of the piston crown, characterised by the following combination of features : the blind hole (5) is cut by a recess (7) that passes through the skirt (6) of the piston (2), a threaded component (8) is introduced into this recess (7), the base (4) of the piston is held by an adaptor (9) secured thereto by means of a screw connection which engages the threaded component through the blind hole (5) and coupled to the piston rod (1).
Patent DE-3242729-A1 (DE)
Title: Pumping device connected to the suction tube of a tube well
Inventor: MEYER CHRISTIAN MARTIN
IPC: F04B47/02
Filed: 1982-11-19
Abstract: The invention relates to a pumping device connected to the suction tube of a tube well and having a manually actuable beam pump which has an ascending pipe containing a non-return valve and has a reciprocating plunger with a plunger valve and an outlet opening. With a beam pump of hitherto known design, it was not possible to remove water manually or in a motor-driven manner via an outlet opening by means of at least one further pump without actuating shut-off valves, separating slides or the like. In order to be able to connect further pumps to a beam pump without having to actuate manual shut-off means, it is provided according to the invention that a suction line of at least one additional motor-driven pump branches off from the ascending pipe below the non-return valve of the latter, that a delivery line assigned to the motor-driven pump opens into the ascending pipe above the non-return valve and that the suction and delivery lines have valves which open and/or close automatically as a function of the operating condition of the motor-driven pump. It is thus possible in an advantageous manner to combine a beam pump with a plurality of motor-driven pumps without the necessity for manual shut-off means.
Patent DE-3246622-A1 (DE)
Title: Shut-off valve which can be pigged
Inventor: SKIBOWSKI HUBERT
IPC: F16K27/06
Filed: 1982-12-16
Abstract: A shut-off valve which can be pigged and has a housing (which has at least two connections), a shut-off device (which is mounted such that it can rotate in the housing and has a passage which can optionally be aligned with the connections and has approximately the same width as the connections), a sealing arrangement in the housing (allocated to the connections and to the passage in the shut-off device), a bearing arrangement in the housing (by means of which the shut-off device is rotated about a fixed axis), and a control device for operating the shut-off device, the shut-off device having an external cylindrical surface which interacts in a sealing manner with a cylindrical surface inside the housing and has a cylindrical passage passing through it, and the shut-off device having at least one inner, annular guide surface, which is concentric with respect to the external cylindrical surface and interacts with a corresponding mating guiding surface in the housing. <IMAGE>
Patent DE-3247415-A1 (DE)
Title: Apparatus for the filling of bulk material, especially powder
Inventor: LISSNER HANS
IPC: B65B39/08
Filed: 1982-12-22
Abstract: The invention relates to an apparatus for the filling of bulk material, especially powder, into a flexible bag which has a filling slot in the region of one of its ends, with a filling connection and with at least two movable clamps which grip end portions of the bag walls. In order to allow the dust-proof filling of bulk material, especially into those bags which are closed at both ends and which have a filling slot in a side wall in the vicinity of one end, there are connected to the filling connection, at a distance from its free end, two wings which extend in different directions and of which the edges facing the free end of the filling connection form stops for limiting the filling slot, and the clamps are to extend at least over the entire width of the filling connection and wings and, moreover, over and beyond the stop-forming edges of the wings, the clamps having, in cross-section, a contour matched to the cross-section of the filling connection and wings.