baber/WOPTO huggingface dataset:
Patent DE-3709328-A1 (DE)
Title: Trickle phase process for selective hydrogenation
IPC: B01J8/02
Filed: 1987-03-21
Abstract: Trickle phase process for selective hydrogenation of highly unsatd. hydrocarbons in presence of alkenes, alkadienes and/or aromatics, using supported Pd catalysts, is characterised in that: (A) liq. feedstream and H2-contg. hydrogenating gas flow downwards over catalyst bed at a surface flow velocity, related to geometrical surface area of whole catalyst, of 0.15-30 micron/s (liq. phase) or 1.25-2000 micron/s (gas phase, referred to standard conditions), and a mean effective cross-sectional flow velocity, related to standard conditions and one-phase flow of the fluids flowing in and out, of 0.001-0.5 m/s (liq. phase) and a max. of 15 m/s (gas phase); (B) the catalyst bed consists of one or more supported Pd catalysts, and in all parts has a mean voltage vol. fraction of 0.33-0.7 and a ratio of the geometrical surface area of the catalyst particles to that of the laterally confining vessel walls of at least 5; (C) the catalyst or catalyst system is arranged in a vertical sequence of layers, beds and/or reactors in series, addn. and removal of substances and/or heat being possible between successive beds or reactors; (D) the catalysts contain 0.05-5wt.% Pd, up to 2.5wt.% alkali metal cpds. calculated as Na2O, Al2O3, and possibly up to 20wt.% Si calculated as SiO2 and/or alkaline earth metal cpds. calculated as CaO, and have surface area 1-350 sq.m/g, pore vol. 0.25-1.2 cc/g, including at least 10% in pores with radii exceeding 50 nm, a surface acidity determined by NH3 adsorption of at least 0.1 micromole NH3/sq.m, and a Pd distribution possibly restricted to a peripheral zone of max. thickness 2mm round the shaped catalyst particles with F values determined by CO chemisorption of 0.01-0.3; (E) the highly unsatd. components to be removed from the feed have b.pt. 220-500 K or are contained in hydrocarbon mixts. in this boiling range; and (F) the loading of the catalyst with the components to be hydrogenated is up to 125 mole/l x h overall.
Patent DE-3711301-A1 (DE)
Title: Device for ventilation of a room
Inventor: WEBER ANDREAS
IPC: F24F7/08
Filed: 1987-04-03
Abstract: The device for continuous ventilation of a room enclosed by a wall, comprising an aeration duct 1 which penetrates through the wall from the outside inwards, and an oppositely extending deaeration duct 2. Both ducts are arranged, in a partial region, such that they are located helically one inside the other and they are separated from one another only by a thin dividing wall 3 of good thermal conductivity. The dividing wall can consist of one and the same material strip throughout. <IMAGE>
Patent DE-3718579-A1 (DE)
Title: Exhaust gas turbocharger
Inventor: DREHWALD HARALD
IPC: F02B33/44
Filed: 1987-06-03
Abstract: The invention relates to an exhaust gas turbocharger for combustion engines, consisting of a driving exhaust gas turbine, which has an exhaust inlet connection and also an exhaust outlet connection, and of a supercharging turbine, which is mechanically connected to the exhaust gas turbine and compresses supercharging air and which is provided with a fresh air inlet connection as well as with a supercharging air outlet connection. In order to increase the power output of combustion engines equipped in this way, the invention provides for the interposition of a swirl tube, whereby thermal efficiency is improved and engine power output increased.
Patent DE-3718772-A1 (DE)
Inventor: BIRMAN STEPHEN P
IPC: C22C38/12
Filed: 1987-06-04
Abstract: A cold drawn resulfurized and rephosphorized free-machining steel bar has the composition, by weight, C up to 0.08%; Mn 0.6% to 1.4%; Si up to 0.1%; P at least 0.03%; S 0.25% to 0.50%; Cb 0.01% to 0.10%; V up to 0.1%; the sum of Ni, Cr, Mo, and Cu up to 0.15%; balanced iron. The ratio of % Mn/%S is from 1.6 to 4.0, and the ratio of (%Mn- 1.62 x %S)/%Cb is from 2 to 50. The yield strength of the steel bar is further determined by the draft in cold drawing the bar from the hot rolled state and the size and cross section of the bar after draft.
Patent DE-3720705-A1 (DE)
Title: Vehicle wheel which is capable of running flat
Inventor: KLEINHOFF KLAUS DIPL ING
IPC: B60C17/04
Filed: 1987-06-23
Abstract: The invention relates to a vehicle wheel which is capable of running flat and which is mounted with a roll radius rs,p and an inclination alpha  of the steering nuckle pivot and has a rim with four-drop centre, a pneumatic tyre with a rolling radius ra,p in the inflated state and a support ring which is arranged inside the cavity of the tyre and which in the invent of loss of air pressure limits the reduction in the rolling radius ra to the run-flat rolling radius ra,n, the rolling resistance R of the vehicle wheel being greater when running flat (Rn) than when running with compressed air (Rp). In order to construct a vehicle wheel, which is matched to the wheel mounting of the respective vehicle type, in such a way that the steering is not badly affected after the transistion from normal running with compressed air to run-flat mode, it is proposed that the axial centre of the support ring be offset with respect to the axial centre of the tread of the tyre by the amount a which is counted positively axially towards the inside, a being determined according to the following equation: a = rs,p(Rn-Rp)/Rp+(ra,p-ra,n)tan alpha
Patent DE-3725028-A1 (DE)
Title: Guiding and intermediate piece for rails of approximately horizontally movable roofings and awnings
Inventor: FABRITZ GERHARD
IPC: E04F10/02
Filed: 1987-07-29
Abstract: The invention relates to a guiding and intermediate piece for rails, sliding on carrying cables, of approximately horizontally movable roofings and awnings which essentially comprise textile or plastic sheeting webs and are fastened between the rails and can be drawn by the same, via the movement of pulling cables, into a roofing position over a corresponding surface area. The guiding and intermediate piece comprises, in accordance with Figures 1 and 2, a cuboidal housing 1 in which there are provided threaded bores 2 for screwing on rails 9 by means of screws 10. The webs for covering a surface area are fastened on said rails. Introduced, by means of a threaded head 8, in a bore 3 provided centrally in the longitudinal direction of the housing 1 is a spindle 4 which projects through a slot 5 located in the centre of the largest housing rectangle. Inserted therein is a pulley 6 which is rotatably mounted on the spindle 4. The pulley may also be fitted on the spindle by means of ball bearings or roller bearings. According to Figure 1, the guiding and intermediate piece rolls on a carrying cable 12, while guided through the free part of the slot 5, via the pulley 6, is a pulling cable 11 for actuating the rails 9. <IMAGE>
Patent DE-3725257-A1 (DE)
Title: Transparent packaging
Inventor: WILBS ALFRED
IPC: B65D75/36
Filed: 1987-07-30
Abstract: A transparent packaging (10) consists of a bottom part (12) and a lid part (18), which parts both have mutually overlapping side walls (16, 22) and consist completely of transparent plastic. Inside the packaging (10) there is a wooden board (24) on which sales articles are fastened and which has a continuation (26) with hanging-up holes (30). The continuation (26) protrudes through a cutout (28) in an end side wall (16) of the bottom part (12). The packaging (10) can both be stacked and hung up on hooks in sales rooms. In the hung-up state, the insertion board (24) is self-supporting and the bottom part (12) and the lid part (18) are unstressed. <IMAGE>
Patent DE-3726149-A1 (DE)
Title: Switching power output stage
Inventor: ZIERHUT HERMANN
IPC: H02M7/538
Filed: 1987-08-06
Abstract: For switching power output stages, especially for switched-mode power supplies having two series-connected switching transistors which are driven in a push-pull manner and of which at least one receives drive pulses supplied via a drive transformer, the magnetic energy stored in the drive transformer at the end of the drive phase is reduced to zero by means of an opposing current which is imposed by the primary winding of the drive transformer. After the end of the phase during which that switching transistor which is connected to the drive transformer is in the conductive state (is switched on), a negative opposing pulse is thus applied to said switching transistor, which ensures that the switching transistor remains safely and reliably in the non-conductive state (switched off) during the flyback phase, even in the event of step functions which result in control engineering terms in the event of a short-circuit of a secondary side or during switching processes.
Patent DE-3732233-A1 (DE)
Title: Installation device having an infrared transmitter
Inventor: GRAML WALDEMAR DIPL ING
IPC: F21V5/00
Filed: 1987-09-24
Abstract: A disc body (plate body) (3) serves as beam-deflecting body in the beam path of the transmitting diode (2). It is fixed in its position by means of latching elements which are engaged into by making latching elements (7) on the housing of the installation device (9). In order to secure the deflection device in this position, a pressure ring (10) is releasably fixed in a latched position. The installation device can be a wall switch for the remote control of lights. <IMAGE>
Patent DE-3733046-A1 (DE)
Title: Circuit arrangement having a (signal) level converter circuit
Inventor: PRIBYL WOLFGANG DR
IPC: H03K3/356
Filed: 1987-09-30
Abstract: In a development of the main application, the level converter circuit (PUS) is connected upstream of a CMOS driver circuit. It switches through to the circuit output a clocked voltage ( phi WL) which is magnified with respect to the input level of the level converter circuit (PUS). The circuit arrangement can be used, in particular, as a word line driver in DRAMs. In this case, doubly magnified voltage nodes are prevented. <IMAGE>
Patent DE-3734350-A1 (DE)
Title: Cutter head for selective-cut heading machine
Inventor: KOENIG ECKHARD ING GRAD
IPC: E21D9/10
Filed: 1987-10-10
Abstract: In the configuration of the cutter head (4) as a longitudinal cutter head, a reaction moment torsionally stressing the cutter boom (7) is obtained in operational use in accordance with the installed power of the cutter-head drive. The reaction moment, apart from necessitating an appropriate design of the cutter boom (7), also necessitates special measures in the area of the machine frame (5) in order to be able to reliably dissipate this torsion moment. To avoid the heavy and expensive construction brought about by these construction measures, the cutter head according to the invention is subdivided into different head shells (13, 14) which, by means of a gear unit attached inside the cutter head (4), can be driven in opposite direction to the effect that the reaction moments originating from the individual head shells are at the very best completely compensated but are at least reduced in their sum, so that the design cost, directed towards transmitting and dissipating the torsion moment, in the area of the cutter boom (7) as well as the machine frame (5) can be kept low. Different peripheral velocities result here in the area of the picks of the individual head shells (13, 14) so that an optimum cutting speed can be set for the average pick diameter of a head shell. <IMAGE>
Patent DE-3734834-A1 (DE)
Title: Grinding-wheel arrangement for a high-speed grinding machine
Inventor: DITTMANN KLAUS DIPL ING
IPC: B24B45/00
Filed: 1987-10-14
Abstract: Published without abstract.
Patent DE-3740336-A1 (DE)
Title: Wheelchair or the like with pivotable leg support
Inventor: KOEPKE MANFRED
IPC: A61G5/12
Filed: 1987-11-27
Abstract: The leg support (6) is locked in a preset angular position in relation to the wheelchair frame (1) by a locking pin (10) which can be moved parallel to the pivoting axis of the leg support (6) and engages in a bore hole (12) in the leg support. The locking pin (10) is guided in a socket (9) which is firmly connected to the frame (1), and is initially tensioned towards the leg support by a pressure spring (11). On the socket there is a cylindrical casing (14) which has the same diameter and is part of a pivoting lever (13) and is firmly connected to the locking pin (10). The mutually facing edges of the socket (9) and of the cylindrical casing (14) have a wedge-shaped inclination so that a pivoting movement of the pivoting lever (13) is converted into a lifting movement, whereby the locking pin (10) is withdrawn from the bore hole (12) in order to abolish the locking of the leg support (6). The unlocking with the pivoting lever is possible with low actuation force; moreover it does not presuppose complete functioning of the fingers and the hand. <IMAGE>
Patent DE-3802254-A1 (DE)
Inventor: GUTJAHR LOTHAR
IPC: B29C45/76
Filed: 1988-01-27
Abstract: For controlling or regulating injection-moulding machines, the sensors emit actual values, control commands are formed and carried out by the actuators. 
<??>All information is available in a succession of words in each case at the sensors and actuators via a loop or spur line. The sensors and/or actuators emit their information together and, depending on the status of the program, the actuators carry out their control commands together in appropriate numbers. The sensors and actuators are coupled via interface couplers or the loop or spur line.
Patent DE-3807018-A1 (DE)
Title: Trailer, equipped as a rear dumper, with compensation of lateral inclination
Inventor: LANGENDORF HEINRICH
IPC: B60P1/04
Filed: 1988-03-04
Abstract: In a trailer, equipped as rear dumper, with compensation of the lateral inclination of the tilting body before tilting by adjusting the tilting body on both sides over the trailing rear axle by means of pressure medium in accordance with the deflection of a device for measuring lateral inclination, in such a way that by supplying or discharging the pressure medium in accordance with the lateral inclination of the standing face the tilting body is raised or lowered into the horizontal position, there is provision according to the invention for a central position to be provided for compensating the inclination of the tilting body at the pressure medium springs of the trailing rear wheels which are suspended on longitudinal links with individual axles, in which central position the said rear wheels serve as springs when the vehicle is travelling and out of which central position they can be adjusted on alternate sides in accordance with the display of the measuring device into a lower or upper extreme position of the rear wheels until the axles have reached a difference in height corresponding to the lateral inclination.
Patent DE-3812504-A1 (DE)
Title: Combination NH fuse (low-voltage, high rupture capacity fuse) and switching strip
Inventor: MUELLER MARKUS DIPL ING
IPC: H02B1/18
Filed: 1988-04-15
Abstract: The invention relates to a combination fuse and switching strip for NH fuse inserts (41) whose contact blades (21, 22, 23, 24, 25, 26) can in each case be inserted into contact elements of the combination fuse and switching strip (which contact elements are connected to power supply leads and current outlets), and a number of fuse covers (27, 28, 29) (corresponding to the number of fuse inserts which can be inserted one behind the other) are mounted in the combination fuse and switching strip in order to accommodate the fuse inserts, at least one connecting rod (34) being hinged on the fuse covers at a distance from the pivot points, and an operating lever (37) being connected to one of the fuse covers (28). In order to ensure the operating lever projects only slightly into the space when the fuse covers are opened, it is proposed according to the invention that this operating lever be mounted in the fuse cover (26) such that it can be displaced in its longitudinal direction. <IMAGE>
Patent DE-3813090-A1 (DE)
Title: Apparatus for roughening and levelling a traffic surface covered with hard snow and/or ice
Inventor: BOSCHUNG ARTHUR
IPC: E01H5/12
Filed: 1988-04-19
Abstract: By way of an attached device (8), it is possible to mount a carrying beam comprising an upper plate (3), a lower plate (4) and sidewalls (5, 6) on a drawing vehicle (1) so as to be pivotable about a shaft journal (7). Bars (43) arranged in a row are detachably fixed to the carrying beam. Rigidly fixed to the lower end of each bar (43) is in each case one holder (44). Each holder (44) carries four cutting plates (45), eachs of which has four teeth (48). The teeth (48) are held by means of two height-adjustable skids (20, 21) at a reference position to the surface to be roughened. Underneath each skid (20, 21) there are arranged sliding plates (26, 27) each having a knife edge (29), so that, if necessary, material removal also takes place underneath the skids (20, 21). With the above-described apparatus of the surface of the ice or hard-snow covering can be roughened as far as the curbstones or pavement, with the result that the safety in particular of pedestrians is increased. <IMAGE>
Patent DE-3813110-A1 (DE)
Title: Device to measure the shape and deformability of organic cells
Inventor: STEINER RUDOLF PROF DR
IPC: G01N15/00
Filed: 1988-04-19
Abstract: A device to measure the shape and deformability of organic cells, especially erythrocytes (red blood cells), comprises a laser beam source (12) and a slot-shaped sample volume (18) in its beam path for accommodating the erythrocytes in a medium. The sample volume (18) is here limited by two transparent walls (22, 24), movable relative to each other, which are arranged at least approximately perpendicular to the laser beam penetrating the sample volume (18). Furthermore, the measuring device comprises a detector (15) for the detection of the diffraction image arising from diffraction of the laser beam in the sample volume (18) and an evaluation device (52, 54, 56, 58) for the diffraction image. The device is characterised in that the surfaces (26, 28) of the walls (22, 24) facing the sample volume (18) are designed as rotation surfaces (26, 28) lying one above the other and curved in the same direction, having a common axis of rotation (A) directed parallel to the laser beam penetrating the walls (22, 24), the concave curved rotation surface (28) having a larger radius of curvature than the convex curved rotation surface (26), and the two rotation surfaces (26, 28) being adjustable relative to each other parallel to their axis of rotation (A). <IMAGE>
Patent DE-3813612-A1 (DE)
Title: Process and apparatus for guiding an equilibrium reaction proceeding at elevated temperature
Inventor: BUETTGEN KARL-HEINZ
IPC: B01J19/00
Filed: 1988-04-22
Abstract: In a process for guiding an equilibrium reaction proceeding at elevated temperature, in which a reaction product volatile at the reaction temperature is formed, in at least one discontinuously operated reactor, undesirable side reactions and secondary reactions are to be considerably reduced and the batch time decreased. This is acheived by heating the reaction mixture to reaction temperature in a film evaporator. <IMAGE>
Patent DE-3816154-A1 (DE)
Title: Easy-to-pack skis
Inventor: RIEZLER GEB RITSCH
IPC: A63C5/02
Filed: 1988-05-11
Abstract: Easy-to-pack skis preferably have a multi-layer structure and consist of at least two sub-units assembled in the longitudinal direction which can be separated for transportation. <IMAGE>
Patent DE-3816298-A1 (DE)
Title: Anabolic peptides
Inventor: SONNENSCHEIN BERND PROF DR DR
IPC: C07K14/245
Filed: 1988-05-13
Abstract: The invention relates to anabolic peptides from Escherichia (E.) coli serotype O2:K1:H6 with a relatively small chain length of around 10 amino acids, with free and non-glycosylated N and C chain ends and with an average percentage composition of 2.5% aspartic acid, 0.6% threonine, 1.1% serine, 5.4% glutamic acid, 3.2% glycine, 3.2% alanine, 3.1% valine, 2.8% methionine, 4.3% histidine and 73.6% lysine.
Patent DE-3820629-A1 (DE)
Title: Supply and braking circuit for a universal motor
Inventor: CUNEO GIUSEPPE
IPC: B25B21/00
Filed: 1988-06-15
Abstract: A supply and braking circuit for a universal motor, which short-circuits the rotor windings (A) to the stator windings (B1, B2) when the motor is turned off using a switch (S2), contains a device for feeding a DC voltage to the motor when the switch (S2) is operated and before the motor has stopped. This device may comprise a diode (D1) and contacts (S2A, S2B) of the switch (S2), one contact (S2B) being moved from a first position (c) to a second position (d) when the switch (S2) is operated for turning off the motor. During the movement between these two positions, the diode (D1) is connected in series with the motor, in order to feed the motor with a pulsed DC voltage for at least one cycle of the supply voltage. When the one contact (S2B) has reached its second position (d), the other contact (S2A) also moves from its first position (a) to the second position (b), so that the braking state is reached. <IMAGE>
Patent DE-3821116-A1 (DE)
Inventor: LICHTENSTEIN HANS ING GRAD
IPC: B44F9/04
Filed: 1988-06-23
Abstract: Tinted acrylic resins, most preferably sheets, with zones of different colour on one surface are produced by bulk polymerisation of a matrix polymer precursor which is homogeneously tinted in the presence of a ground, also tinted, acrylic resin which differs in colour from the matrix polymer. The tinted acrylic resin settles in the base region of the chamber, and when finally the polymerised object is removed from the mould, zones of different colour are present on the underside giving the overall impression of a "stone structure'. The coloured structure is retained even after tempering and moulding, for example, in the formation of sanitary ware.
Patent DE-3823892-A1 (DE)
Title: Hydraulic system with several pumps
Inventor: OLBRICH GOTTFRIED DIPL ING
IPC: F15B11/17
Filed: 1988-07-14
Abstract: The hydraulic system has several pumps (10, 11, 40) with constant delivery flow, a preferred consumer (VI) (primary circuit) being allocated to one pump (10). For both pumps, of which the first pump (10) is mainly allocated to the preferred consumer and the other to a secondary circuit (VII), a single flow-control valve (15) is allocated. The flow-control valve (15) is controlled and designed in such a way that, when required, it is able to control the delivery flow of the second pump to the preferred consumer or can feed the delivery flow of the first pump to the second consumer. <IMAGE>
Patent DE-3828814-A1 (DE)
Inventor: SCHLUMP DIETER DIPL ING
IPC: C03B37/15
Filed: 1988-08-25
Abstract: In a method of changing the spot diameter of single-mode step-index fibers, a single-mode step-index fiber of a given length is heated below its melting point for a defined time in accordance with a temperature profile which varies, preferably linearly, over said length. In this manner, coupling losses between a single-mode laser and a single-mode step-index fiber and between single-mode step-index fibers with different parameters can be reduced to a minimum.
Patent DE-3907629-A1 (DE)
Title: Benzaldehyde oxime ethers and fungicides containing these compounds
Inventor: SCHUETZ FRANZ DR
IPC: C07C251/38
Filed: 1989-03-09
Abstract: Benzaldehyde oxime ethers of the general formula <IMAGE>  in which   R<1> denotes alkyl, alkenyl, alkinyl, haloalkyl, haloalkenyl, alkoxyalkyl, cycloalkyl, cycloalkyl-alkyl, cyanoalkyl, alkoxycarbonyl-alkyl, arylalkyl, heteroaryl-alkyl, aryl-alkenyl and aryloxy-alkyl, the aromatic or heteroaromatic ring optionally being substituted, R<2> and R<3> denote hydrogen, alkyl, haloalkyl, alkoxy, haloalkoxy, halogen, cyano or nitro   X denotes CH or N, and fungicides containing these compounds.