baber/WOPTO huggingface dataset:
Patent DE-3603562-A1 (DE)
Title: Planar optical waveguide arrangement having at least one electrooptic switch
Inventor: BUELOW HENNING
IPC: G02F1/313
Filed: 1986-02-05
Abstract: By using two directional coupler switches having an alternating DELTA  beta along the coupling section, the light transported into a first optical strip waveguide is diverted into a second strip-shaped optical waveguide which crosses the first at as large an angle as possible by providing that the optical waveguides of the secondary side of the two coupler switches are connected to one another and that each coupler switch is assigned to one of two branches, abutting at an obtuse angle, of the two criss-crossing optical waveguides. In the event of a lack of electrode voltage at the switch electrodes, owing to differently selected phase constants of the optical waveguides which form a coupler switch light is scarcely transmitted from the one optical waveguide into the crossing optical waveguide without there being a need for this purpose for the coupling section length and separation of the optical waveguides from one another to be tuned to one another exactly in the region of the coupling section. <IMAGE>
Patent DE-3605048-A1 (DE)
Inventor: DRINDA KLAUS DIPL ING
IPC: H04N7/04
Filed: 1986-02-18
Abstract: For demodulating D2-MAC signals or similar time-division multiplex FM signals which do not have a symmetric spectrum and in which the RF band widths taken up by them change periodically in accordance with the modulating baseband time-division multiplex signal, the received band width is switched over in the rhythm of the time intervals of the baseband time-division multiplex signal during demodulation. This measure leads to an improvement in the FM threshold of the D2 signal component without distorting the MAC component (Fig. 3). <IMAGE>
Patent DE-3610703-A1 (DE)
Title: Disc rotor motor
Inventor: KLAUSNITZER HERBERT
IPC: F01B9/06
Filed: 1986-03-29
Abstract: In a disc rotor motor designed as internal combustion engine, the working and control disc rotors are mechanically connected in a certain transmission ratio. The working disc rotors function on the vane cell principle. The control disc rotors contain intake and exhaust passages and the compression chambers which are also combustion chambers. The working process is made possible on the one hand by the assignment of working and control disc rotors and on the other hand especially by the control disc rotor in that in addition to the intake of fresh gases and expelling of exhaust gases, the mixture is compressed by a working disc rotor into the compression chamber of a control disc rotor and used for the working stroke in another working chamber. This process occurs alternately, the control disc rotor being directly involved in the working process due to the combustion beginning in the compression chamber immediately upstream of the connection to the working chamber.
Patent DE-3611485-A1 (DE)
Title: Casing for a survival knife
IPC: F41C3/02
Filed: 1986-04-05
Abstract: A casing for a survival knife has a box which is fixed with respect to the casing and contains two compartments, one of which accommodates an ignition pin mechanism and the other of which contains flare cartridges. The box is sealed by means of a cap which is connected via a joint to an elongated rod, which is guided between the box and the casing. A flare cartridge can be screwed into the end of the compartment in which the ignition mechanism is arranged to make it ready for firing. The firing and/or ignition device formed in this way is small and of simple design, and can be safely handled.
Patent DE-3616557-A1 (DE)
Title: In-the-ear hearing aid
Inventor: HAERTL CHRISTOF
IPC: H04R25/02
Filed: 1986-05-16
Abstract: The housing (2) of the hearing aid (1) comprises a distil beaded head part (25) with level front (27) on which a domed front plate (5) is seated, and a proximal thinner tail part (26). The angle ( alpha ) between the normal (28) of the level front (27) and the longitudinal axis (31) of the tail part (26) is within the range of 135 DEG  to 142 DEG , preferably 140 DEG  in a first longitudinal section plane (III-III), and the corresponding angle ( beta ) is within the range from 12 DEG  to 17 DEG , preferably 14 DEG , in a second longitudinal section plane (IV-IV). <IMAGE>
Patent DE-3621332-A1 (DE)
Title: Microvalve
Inventor: CSEPREGI LASZLO DIPL ING
IPC: F16K99/00
Filed: 1986-06-26
Abstract: The invention relates to a microvalve (1) with a valve chamber (6) and with a disc-shaped valve body (valve disc 4) which is connected via resilient elements (5) to the rim of the valve chamber (6) and can be moved in a controlled manner into two different positions in which it closes or exposes a valve opening (7) at the bottom of the valve chamber (6). For the purpose, in particular, of achieving higher actuating forces for the valve disc (4), the proposal is to design the said valve disc as a magnet armature (4, 9) for an electric coil (10) situated in the region of the valve opening (7). The effect of the electric coil (10) can be further increased by means of a permanent magnet (12). <IMAGE>
Patent DE-3623548-A1 (DE)
Inventor: HALTER HARTMUT
IPC: B29C48/10
Filed: 1986-07-12
Abstract: The apparatus for making a plastic foil by blowing into an extruded thermoplastic tube comprises a rotating extruder head with at least one circular outlet gap for the plastic tube, an air blowing device and a cooling device including two circular cooling air outlets surrounding the circular outlet gap of the extruder head. Cooling air duct structures are connected to a common cooling air blower. A cooling air distributor unit has a cooling air feed device for each cooling air outlet. The cooling air feed devices are aerodynamically independent of each other. The aerodynamically independent cooling air feed devices are connected to a common cooling air duct structure. Each cooling air feed device has an air flow control device.
Patent DE-3623553-A1 (DE)
Title: Earth-pressure shield
IPC: E21D9/06
Filed: 1986-07-12
Abstract: An earth-pressure shield possesses a front working chamber (1), formed by a partition wall (2) and having a mining tool (3), and an annular reinforcing space (4) of essentially triangular cross-section which is arranged directly in front of the partition wall (2). The annular reinforcing space (4) in turn has a lower fluid feed (5), a regulated upper compressed-air feed (6), fluid pipelines (7) which are guided from the lower region to an upper fluid outlet (8) open towards the working chamber (1), and a fluid-level regulator (9). Such an earth-pressure shield can also be used for fluid operation if the annular reinforcing space (4) is connected to the working chamber (1) underneath the fluid feed (5), the upper fluid outlet (8) can be closed and the working chamber (1) has a further fluid feed (14) which can be used when the fluid feed (5) in the annular reinforcing space (4) is closed and when the fluid outlet (8) is closed. <IMAGE>
Patent DE-3623863-A1 (DE)
Title: Packaging for transporting sensitive or very fragile articles
Inventor: SIMMERLEIN-ERLBACHER EWALD WIL
IPC: B65D25/10
Filed: 1986-07-11
Abstract: A packaging for transporting sensitive or very fragile articles, such as cameras, measuring instruments, glass or porcelain, is described, in which there are insert cards (10) which are arranged parallel to the enclosure sides of the outer packaging (22) and are supported on the enclosure surfaces. These insert cards bear transverse webs (12) on which the articles (13, 14a, 14b) to be packaged are mounted. <IMAGE>
Patent DE-3624138-A1 (DE)
Title: Apparatus for air conditioning and regeneration
Inventor: BAUER HEINER DIPL ING
IPC: F24F8/133
Filed: 1986-07-17
Abstract: In an apparatus for air conditioning and regeneration, comprising a fan and a cooling device for the air circulated by the fan, in order to obtain room air which is particularly well tolerated by the body, it is provided that the apparatus comprises a filter device (13) for the circulated air. <IMAGE>
Patent DE-3631459-A1 (DE)
Inventor: KRIFFT ENGELBERT
IPC: B08B9/02
Filed: 1986-09-16
Abstract: In the method the pipes and the units are flushed out with a liquid cleaning medium. It is proposed that a common cleaning medium supply be provided, from which several pipes and/or units are flushed in parallel connection. The total flow volume in the main pipe is measured and in addition the respective flow volume in each of the pipes or in each of the units to be cleaned is measured. The flow volumes in each of the pipes to be cleaned can be adjusted by means of devices provided for this purpose. As a result the branched pipes and/or units can be uniformly flushed out according to the individual cleaning requirements. A suitable device for carrying out the process is also described. <IMAGE>
Patent DE-3635496-A1 (DE)
Title: Clamping device for abrasive sheets on portable orbital sanders
Inventor: FRANK MANFRED
IPC: B24B23/04
Filed: 1986-10-18
Abstract: The subject of the application is a clamping device for detachable fixture of an abrasive sheet on the oscillating plate of a portable orbital sander, around whose relevant narrow sides the abrasive sheet is laid, with a wire clamp which is mounted on the upper side of the oscillating plate and has a leg extending in the vicinity of and substantially parallel to the upper edge of the oscillating plate on the relevant narrow side, and an actuating arm which is bent off approximately at right angles therefrom and, in the clamped position, rests on the upper side of the oscillating plate. In the case of such a clamping device, the forces exerted by the wire clamp on the oscillating plate are to be negligible. This is achieved in that the wire clamp is pivotable about its leg, which has at least between two mutually coaxial sections an axially parallel section eccentric thereto, either the coaxial sections or the section eccentric thereto acting directly or indirectly on the oscillating plate in the clamped position with the inclusion of the abrasive sheet.
Patent DE-3637690-A1 (DE)
Inventor: GREULICH NORBERT DR
IPC: C03B19/06
Filed: 1986-11-05
Abstract: Open-pored sintered glass is produced by conventional processes but, at pore volumes of more than 60%, the resulting tensile bending strengths are too low for an application as a filter medium. A further disadvantage for filtration is the wide distribution of the pore size and the structuring of the internal surface of the pores. The novel process is intended to provide open-pored sintered glass with large open pore volume, high tensile bending strengths and good flow rates. 
<??>In this process, starting granules of finely granulated glass powder, coarsely grained salt powder and binder are first prepared. 5 to 20% by weight of fine-grained glass powder is then added to these starting granules and this mass is subjected to shaping. The shaped product as formed is heated to the sinter temperature of the glass and sintered, and the salt is then washed out of the sintered glass. 
<??>Production of open-pored sintered glass for filters.
Patent DE-3642443-A1 (DE)
Title: Ventilation device with a filter for a motor car
Inventor: BROSINGER REINHARD DIPL ING
IPC: B60H3/06
Filed: 1986-12-12
Abstract: The invention relates to a ventilation device with a filter for a motor car, the filter (5) being mounted in an air line (3) and completely filling the cross-section thereof. It is proposed according to the invention that, in the case of inadequate air passage caused by the filter, to increase the air passage a direct passage (bypass line 6) for air past the filter (5) is opened. In one embodiment, the opening is formed parallel to the switching on of a maximum fan stage (activation unit 13, line 16). In another embodiment, the magnitude of the differential pressure between the region upstream of and downstream of the filter (5) is used, via a differential pressure switch (11), for controlling the opening (flap 7, positioning element 8). In further embodiments, instead of a bypass line, the filter itself is moved at least partly out of the region of the air line (3). The force for opening flaps or moving filters is applied either via actuatable positioning elements or directly by means of the differential pressure prevailing. By means of the arrangement according to the invention, it is achieved that for all operating cases, for example in the case of a high degree of contamination of the filter, an adequately high air throughput is available. <IMAGE>
Patent DE-3643257-A1 (DE)
Title: Work roll of composite casting for a rolling mill
IPC: B32B15/01
Filed: 1986-12-18
Abstract: The invention relates to a work roll of composite casting for a rolling mill, the core of the roll consisting of an iron alloy and the shell thereof having an iron alloy with the following constituents in % by weight: C = 3-3.5, Si = 0.5-1.2, Mn = 0.5-1.5, P less than 0.7, S less than 0.5, Cr = 1.0-2.0, Ni = 2-5 and Mo = 0.2-1. In order to improve a work roll of the abovementioned type with respect to its wear resistance, it is proposed according to the invention that the Cr content of the iron alloy of the shell is increased to 4-7% by weight and that of Mo is increased to 1-5% by weight. The basic analysis is otherwise unchanged, with the same core material. Surface hardnesses of between 60 and 100 ShC are achievable.
Patent DE-3704217-A1 (DE)
Title: Process for producing porous moulded articles from fluoropolymers
Inventor: EILENTROPP HEINZ
IPC: H01B19/02
Filed: 1987-02-11
Abstract: Moulded articles produced by paste extrusion are, in continuous passage, freed of lubricant in a first step and, in a second step, stretched and in the process the material is simultaneously sintered.
Patent DE-3707737-A1 (DE)
Title: Piston for an internal combustion engine with a ceramic section reinforcing the piston
Inventor: RUEHLE MARTIN
IPC: F02F3/08
Filed: 1987-03-11
Abstract: In a piston for an internal combustion engine with a ceramic section, for example a combustion chamber recess, reinforcing the piston, the connection between piston body and ceramic section is achieved by an annular metal cushion fitted between the two components, which cushion is filled with a propellant, which in the gaseous state increases its volume as the temperature increases, thereby producing the desired contact pressure between the components. <IMAGE>
Patent DE-3709154-A1 (DE)
Inventor: MERTEN WERNER DIPL ING
IPC: F15B15/02
Filed: 1987-03-20
Abstract: 1. Longitudinal cylinder unit comprising a pneumatic or hydraulic piston-cylinder unit in which a driving piston (2, 3) is disposed so as to be displaceable back and forward in a cylinder (4) and with said cylinder defines first and second pressure flow medium chambers (5, 6), into which and from which a pneumatic or hydraulic pressure flow medium for displacing the driving piston (2, 3) can be supplied and discharged, a load piston (13) which absorbs transverse forces acting from outside across the direction of displacement (A) of the driving piston (2, 3) being displaceably disposed in a longitudinal guide (14) parallel to the driving piston (2, 3), characterized in that the load piston (13) is connected to the driving piston (2, 3) by means of a coupling (17) which disengages the driving piston (2, 3) from the transverse forces but transmits pressure or tensile longitudinal forces acting in the direction of displacement (A) of the driving piston (2, 3) to the load piston (13).
Patent DE-3710528-A1 (DE)
Inventor: MUENCH KARL
IPC: B65G47/08
Filed: 1987-03-30
Abstract: An arrangement for converting a multi-track stream of containers into a plurality of parallel container rows that are separated from one another by separating elements. A feed mechanism conveys the containers, and a withdrawal mechanism is divided by the separating elements into a plurality of lanes, one for each of the container rows. A transition zone is disposed between the feed mechanism and the withdrawal mechanism, and is formed by the upper lengths of a plurality of conveyer bands that are disposed in the conveying direction, and transverse to this direction are disposed adjacent one another. The containers of the multi-track stream are distributed to the individual lanes in this transition zone. The conveyer bands of the transition zone spread apart in a fan-like manner in such a way that the lateral spacing between the upper lengths of adjacent conveyer bands increases in the conveying direction from the feed mechanism, with a maximum value of this spacing being less than the diameter of the containers and/or the width of the lanes of the withdrawal mechanism.
Patent DE-3714781-A1 (DE)
Title: Clarifying shaft for waste water purification with integral mass separation and oxygen-active clarifying stage
Inventor: LAMBRECHT HANS
IPC: C02F3/10
Filed: 1987-05-04
Abstract: Published without abstract.
Patent DE-3715520-A1 (DE)
Title: Room air conditioner unit with heat pump and heat exchangers - dispenses with water main and uses hot or cold supply to remove surplus condensation or vapour
Inventor: TIEPOLDT DIETER R
IPC: F24F5/00
Filed: 1987-05-09
Abstract: The room air conditioner unit has a heat pump (1) with two heat exchangers (2,3) connected to an air supply pipe (8) and exhaust pipe (9). A bypass (10) with a regulating shutter (11) draws off accumulated hot or cold air from one exchanger (2) or superfluous concentration from the other (3). A hot or cold supply (14) transfers used air into a covered cavity outside the room through a connecting pipe. Both heat exchangers (2,3) are installed in the air supply pipe (8) and the regulating shutter (11) can selectively release one or other of them. USE/ADVANTAGE - Room air conditioner unit obviates the need for a water main by using a hot or cold supply to remove accumulation of condensation or vapour.
Patent DE-3720365-A1 (DE)
Title: Method for separating off light liquids from water and apparatus for carrying out the method
Inventor: MOEHLENBECK K-J DIPL ING
IPC: E03F5/16
Filed: 1987-06-19
Abstract: The invention relates to a method for separating off light liquids from water and an apparatus for carrying out the method. The mixture of water and light liquid is passed into the vessel of a separation apparatus and is there separated into water and light liquid. The water mixture stream is divided in such a way that, in at least one of the chambers of the vessel, one part-stream is conducted away at the level of the liquid surface and another part-stream is conducted away beneath the level of the liquid surface.
Patent DE-3720793-A1 (DE)
Title: Two-part frame for windows, doors or skylights
Inventor: HORN GERHARD
IPC: B60J1/08
Filed: 1987-06-24
Abstract: The invention relates to a two-part frame for windows, doors or skylights, with a one-piece outer frame (1) and a one-piece inner frame (2) and with at least one blind (3) which is designed as a blackout means, sunshade or insect guard and is accommodated in a window strut. For this purpose, a respective cutout (1a and 2a) is formed within the outer frame (1) and the inner frame (2) for receiving approximately half of the blind (3). Formed on one of the frames (1 or 2) are guide surfaces for the blind closing rod (3b). These guide surfaces (2b, 4b) which run parallel to each other at a predetermined distance are formed, on the one hand, by a guide rail (4), which is attached to the inner or outer frame (2 or 1), and, on the other hand, by a surface (2b) of the inner or outer frame (2 or 1). This surface (2b) is provided with snap-in recesses (2c) for a spring-loaded stopper (5) which is arranged at each end of the blind closing rod (3b). <IMAGE>
Patent DE-3724199-A1 (DE)
Title: Vibratory installation for producing mouldings by densification
Inventor: CASPELHERR HEINZ
IPC: B30B11/02
Filed: 1987-07-22
Abstract: The vibratory installations (shaking installations), for producing mouldings by densification (compaction), especially of carbon electrodes for the aluminium industry, essentially consist of a vibrating table which is mounted on springs so as to be able to vibrate and on which a moulding box (flask) is disposed, a cover weight and vibrators, the cover weight having its ability to vibrate maintained by springs and being arranged so as to be adjustable in a vertical direction. In order to be able to change the characteristic vibration frequency of the cover weight and the vibrating table during operation of the vibratory plant, according to the invention the springs (6, 7) on the vibrating table (1) and the springs (17) on the cover weight (3) are designed as rubber cushions having variable spring constants (force constants). As a result, the interaction of the cover weight with the vibrating table during operation of the vibratory plant can be tailored in an optimum manner and consequently the vibratory plant, in terms of the impact rate and the impact intensity of the cover weight, can be matched optimally to the moulding to be densified in any particular case. <IMAGE>
Patent DE-3735219-A1 (DE)
Title: Appliance for cleaning gases, especially room air
Inventor: HITZLER ALFRED
IPC: F24F8/133
Filed: 1987-10-17
Abstract: An appliance for cleaning (purifying) gases, especially of room air is proposed which is essentially based on the known principle of a set of panels rotating in a liquid, past which set the air to be cleaned can be guided and on whose surface pollutants are adsorbed. In order to achieve an increased efficiency for removing extremely fine dusts, an additional electrostatic process is employed to ionize the pollutants and deposit them on the set of panels. Owing to the rotary movement in the liquid, continuous self-cleaning of the panels takes place, so that the equipment is virtually maintenance free.
Patent DE-3736673-A1 (DE)
Title: Infrared analyser
Inventor: SCHMIDTKE GERHARD DIPL PHYS DR
IPC: G01N21/3504
Filed: 1987-10-29
Abstract: An infrared analyser, which serves for the determination of the concentration of a gas, makes use of a broad-band radiation source (1), whose light is reflected by two concave mirrors (13, 18) in such a way, that the light bundles (14, 19) pass at different angles through an interference filter (16) to a detector (15). The transmission wavelength ranges of the interference filter (16) assigned to the two directions of incidence are so selected, that one of them lies in a stronger absorption band and the other in a weaker absorption band and correspondingly lower and higher gas concentrations can be determined. The signal separation of the two wavelength regions is carried out with the aid of a periodically acting beam interrupter (5), which in each case allows only the light from a mirror (13, 18) to fall onto the detector (15) and, in an intermediate position, interrupts the light from both mirrors (13, 18) for the determination of background. The signal processing system (9, 22-29) is coupled to this beam interrupter (5). <IMAGE>
Patent DE-3741534-A1 (DE)
Title: Heating element having a heating filament
Inventor: FELDMANN ALOYS ING GRAD
IPC: H05B3/06
Filed: 1987-12-08
Abstract: In a heating element a heating filament (1) is connected to a connection piece (2). To obtain a good electrical connection in this case and, at the same time, a strain relief the connection piece (2) is provided with a hook (3, 4) which engages in at least two turns (5, 6) of the heating filament (1). The hook (3, 4) is in this case pressed together in such a manner that a part of the turns (5) is connected to the connection piece (2) in an electrically optimum manner, if necessary by mechanically changing the cross-section of the wire, and the other part of the turns (6) which is adjacent to the heating filament (1) is only frictionally clamped, with the hook being the strain relief, without the wire undergoing any noticeable deformation of the cross-section. In the region of the free end of the shorter limb (3) and at least one adjacent turn (5) the limbs (3, 4) are preferably spot-welded to each other. <IMAGE>