baber/WOPTO huggingface dataset:
Patent DE-3832696-A1 (DE)
Title: Device for the production of pile fabrics
Inventor: SCHUBERT FRANK
IPC: D04B23/08
Filed: 1988-09-27
Abstract: The device for the production of pile fabrics of variable pile height on warp-knitting machines which have two bars adjustable relative to one another and to which are fastened holders with pile sinkers which pass through the needle spacings and one of which performs the holding-down function and the other of which constitutes the outer limitation of the pile height, is to increase the universality of the warp-knitting machine in respect of the pile height, at the same time with a high speed level. To solve this problem, there are mounted between the bars wedge-shaped self-locking spacer pieces which are displaceable along the bars and which are connected rigidly to one another on a rail and are guided over the entire working width and thus effect the setting of the outer pile sinker relative to the inner, so that the pile height can be varied. <IMAGE>
Patent DE-3835441-A1 (DE)
Inventor: KEIL GUENTER DIPL CHEM DR
IPC: C08G69/32
Filed: 1988-10-18
Abstract: Aromatic copolyamides, soluble in organic polyamide solvents, comprise at least 95 mol % of the recurrent structural units of the formulae   OCArCO A <IMAGE> B  <IMAGE> C  <IMAGE> D  and up to 5 mol % of structural units containing m-bonds. Here -Ar-is a divalent, unsubstituted or substituted aromatic radical, the valency bonds of which are in the para-position or in a comparable coaxial or parallel position, and -R-and -R' are different from one another and are lower alkyl radicals or lower alkoxy radicals.
Patent DE-3836391-A1 (DE)
Title: Hydraulically controlled brake pressure valve
Inventor: FINK WALTER
IPC: B60T13/14
Filed: 1988-10-26
Abstract: In order, in a hydraulically controlled brake pressure control valve, to permit adjustment and damping of disturbing vibrations in different types of vehicle using simple means, the control piston (3) is designed as step piston, which is arranged in a guide sleeve (4), which can be screwed into the housing (1), the large circumferential surface of the control piston (3) having pressure equalising ducts (14), which connect the two faces (3.1, 3.2) to one another. For this purpose the large diameter of the control piston (3) is designed as hexagonal profile with radiussed edges. <IMAGE>
Patent DE-3837352-A1 (DE)
Title: Process for fabricating electrodes for electrolytic cells
Inventor: ZIEM WERNER
IPC: C25B11/04
Filed: 1988-11-03
Abstract: In a process for fabricating activated electrodes for electrolysis, in particular for the electrolysis of water to generate hydrogen and oxygen in an electrolytic apparatus, a solution is to be provided by means of which optimal electrodes can be fabricated in a simple and cost-effective procedure. This is achieved by a substrate metal (support metal) being subjected to surface coating, in a manner corresponding to hot-dip galvanising, with zinc, aluminium, corresponding alloys or the like, a bond between substrate metal and coating being effected by subsequent diffusion annealing.
Patent DE-3840068-A1 (DE)
Title: Indirect luminaire asymmetric
Inventor: HAHN HERMANN PROF DR ING
IPC: F21V7/00
Filed: 1988-11-28
Abstract: An effective asymmetry of indirect luminaires is achieved by means of the darklight-principle previously known only from directly radiating luminaires. The following progress can be achieved by means of such luminaires:   - in the case of wall-mounted luminaires the radiation (emission) can be directed exclusively towards the ceiling. - in the case of pendant luminaires, despite having two lamps, an extremely spread-beam LVK (light distribution curve, luminous intensity distribution curve) can be achieved.
Patent DE-3841074-A1 (DE)
Inventor: ESSER HANS-PETER
IPC: A47J37/10
Filed: 1988-12-07
Abstract: The heating device, in particular for foodstuffs, contains a bell- shaped housing (1) which, using handles (2), can be placed as a hood over the product to be heated, having a heating apparatus (5) for heating the space enclosed by the housing and a covering of the open housing side. The housing has a connection (3) for a steam line to feed steam into the interior of the housing, an electric radiation heater (5) in the interior in the region of the housing bottom (4), and a thermostat control (6) which switches the radiation heater in dependence on the temperature in the interior of the housing. <IMAGE>
Patent DE-3843439-A1 (DE)
Inventor: WINGERT HORST DR
IPC: A01N37/50
Filed: 1988-12-23
Abstract: Oxime ether derivatives of the formula   <IMAGE> I  where R1 and R2 are each hydrogen or alkyl, X is S, SO or SO2, R3 is hydrogen, cycloalkyl, phenyl, naphthyl, quinolinyl or phenanthrenyl, these radicals being unsubstituted or substituted, Y is alkylene, alkenylene or alkynylene, and m is 0 or 1.
Patent DE-3905730-A1 (DE)
Inventor: MICHEL DIETER DIPL ING
IPC: G01D5/26
Filed: 1989-02-24
Abstract: In a position-measuring installation according to Figure 2, a ray bundle is diffracted at a first diffraction grating (202). The component ray bundles (- phi ,  theta . and + phi ) impinge on a second diffraction grating (203) which is tuned with a triple prism (206) in such a way that the component ray bundles (- phi ,  theta . and + phi ) intersect at a single point and emerge once again. On subsequently passing through the diffraction gratings (203 and 202), the component rays are in each case diffracted once again and then interfere. The interfering component ray bundles impinge on a detector device (207) by which they are converted into mutually phase-shifted measuring signals. <IMAGE>
Patent DE-3907480-A1 (DE)
Title: Guide roll for a material web
Inventor: STEINER KARL DR
IPC: F26B13/16
Filed: 1989-03-08
Abstract: A description is given of a guide roll for a material web, for example for a drying fabric of a paper machine. A perforated roll cover 2 rotates about a stationary air-guide box 3 which is divided into a blast chamber 17 and a suction chamber 18 by means of intermediate walls or by means of an elliptical inner tube 31. Between the air-guide box 3 and the roll cover 2 there is an annular space 30, in which a blast zone B and a suction zone S are bounded by means of longitudinal seals 21 to 24. Seen in cross-section, both the blast chamber 17 and the suction chamber 18 are arranged symmetrically with reference to two central planes E1 and E2, which intercept each other essentially at right angles. <IMAGE>
Patent DE-3910732-A1 (DE)
Title: Closure plug
Inventor: JIRKA KARL DIPL ING
IPC: F16L55/128
Filed: 1989-04-03
Abstract: By means of the invention, the closure plug according to the main application P 3718619 is improved insofar as a return of the bracing cam out of the operating position into its rest position, which may be possible in the case of inappropriate handling, is avoided in that said bracing cam is provided with a toothing arrangement, by means of which it is supported, in the operating position, on a clamping plate of the upper bracing disc, the action being further increased by different hardnesses of the materials of the bracing cam and of the clamping plate.
Patent DE-3912468-A1 (DE)
Title: Pull-up for rapid signal output - has pull-up resistor integrated with, or formed by suppressor capacitor
Inventor: SEEGERT BERNHARD DIPL ING
IPC: H01G4/40
Filed: 1989-04-15
Abstract: A bivalent signal-carrying terminal (10) is coupled to a supply via a parallel circuit of a pull-up resistor (Rp) and a suppressor capacitor (Cp).  The parallel circuit is realised by a capacitor with a loss-resistance equal to the value of pull-up resistor. Pref. the dielectric of the capacitor is of an insulator with added conductive substance.  The capacitor and resistor may alternatively be on the same carrier. USE/ADVANTAGE - For fast switching processors in VTR or TV receivers. Total effort for RC member is reduced.
Patent DE-3913773-A1 (DE)
Inventor: FOWLER J NICK
IPC: B29B9/06
Filed: 1989-04-26
Abstract: A rod of molten atactic polypropylene is extruded through an orifice of an extrusion head into the path of a knife moving across the outlet of the orifice thereby to cut the rod into a succession of pellets. The pellets and knife are covered with a dust-like material which is inert to the atactic polypropylene thus rendering the pellets non-sticky. The dust-like material may be talc, polypropylene or polyethylene and may be in powder form or in the form of a slurry containing a surfactant.
Patent DE-3917670-A1 (DE)
Title: Defence appts. from missile duplex radio transmitters and receivers - uses Doppler detection techniques to switch off radio transmitter for short periods
Inventor: FISCHER KARL DIPL ING
IPC: G01S7/38
Filed: 1989-05-31
Abstract: The equipment transmits radio waves which, when replected from moving objects, produce a Doppler frequency shifted received radio wave at either a higher or lower frequency than the original transmitted wave. The transmitter is switched off for a short period of time delta-t whenever a threshold level is exceeded. Preferably the equipment includes a Doppler radar receivers (60-66) comprising bandpass filter (60), mixer (61), Fast Fourier Transform filter (63), Comparator (64), summator (65) and alarm generator (66); and a transmitter (30-34). USE - Protection of radar installations from antiradiation missiles.
Patent DE-3918534-A1 (DE)
Inventor: MOSEBACH WOLFGANG
IPC: G01L9/10
Filed: 1989-06-07
Abstract: The pressure sensor serves to determine the pressure of the medium in an elastic tube section (10). The pressing member (11) acts on a beam (17) which is fastened on one side and carries an influencing part (19) at its free end. This influencing part (19) is a core in a coil arrangement (22, 23), the position of the core changing the frequencies of the oscillation coils. Numerous pressure readings are taken at regular intervals and are then averaged in order to obtain a representative pressure value. 
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Patent DE-3923235-A1 (DE)
Title: Cross-welding and perforating continuously moving double plastic film - has upper and lower welding tools with perforating knife which rotate around axes at speeds related to film speed
Inventor: LEHMACHER HANS
IPC: B31B155/00
Filed: 1989-07-14
Abstract: Equipment for welding a continuously moving double layer plastic film at right angles to the direction of movement simultaneously creates a tearoff perforation along the weld.  A hot welding tool can be moved by a power source around an axis with a circumferential speed which is similar to that of the plastic film at the point of welding. After welding the tool continues to rotate around the axis at a speed related to the distance between welds. A second welding tool on the opposite side of the film is synchronised with the movement of the first tool. Both welding tools are located between two pairs of powered drive rollers for film transport. The speed of the second pair of rollers is slightly faster than that of the first or feed rollers. A perforation knife is mounted within one of the welding tools. USE/ADVANTAGE - Produces the welded seam bases of plastic bags which can then be torn off of a continuous roll. Welding seams are precisely located and are stress free. High production. rates are attained.
Patent DE-3924958-A1 (DE)
Title: Control circuitry driving print nozzles in ink mosaic printer - uses timer-controlled switching via potential divider for pulse generation without large inductive components
Inventor: SCHIERJOTT RUDOLF
IPC: B41J2/045
Filed: 1989-07-27
Abstract: An ink mosaic printer nozzle drive circuit contains piezoelements which expand or contract ink channel dia. when polarisation or anti-polarisation d.c. voltages are applied. The start of each spray process is clock-controlled. A d.c. voltage supply (G) supplies a higher voltage during a first period of timing cycle and a lower voltage  during the residual period to piezoelectric element (CP1) control unit. The voltage is supplied via a potential divider (R31,R41) which is switched under timer control to control printing. ADVANTAGE - Simply generates control pulses without using large inductive components.
Patent DE-3928568-A1 (DE)
Title: Ion assay device contg. ionophore with several crown ether residues - which forms ion complex which reacts with colour forming indicator, esp. for clinical measurement of alkali metal
Inventor: YAMAMOTO TAKESHI
IPC: G01N31/22
Filed: 1989-08-29
Abstract: Analytical device for measuring ions in a hydrophilic, layered carrier matrix in which are dispersed fine beads of hydrophobic carrier contg (1) an ionophor (I) with 2 or more crown ether residues in the moleculee and (2) an indicator (II) which interacts with the (I)-ion complex to give a detectable response. (I) pref contain 2-4 crown ethers, each with 3-10 membered rings opt contg, in addn to 0, an N or S atom. (II) are quinone-derivs with N-hydroxyaryl substit. USE/ADVANTAGE - These devices are esp used for clinical assay of Na or K ions in biological fluid (whole blood, serum plasma, urine, etc). They provide colourimetric quantifications with better accuracy than known devices (which contain (I) contg only a single crown ether residue).
Patent DE-3930088-A1 (DE)
Title: Bale breaker providing support at each end of row - has interrupted roller shrouding with support beam opposite breaks to support end bales in row
Inventor: HERGETH HUBERT A DIPL ING
IPC: D01G7/06
Filed: 1989-09-09
Abstract: In a bale breaking appts. with at least one support beam and an extractor roller shrouding, the shrouding is at least partially interrupted between two grid rods, and the support beam is positioned against these breaks. The width of a shrouding break is 30-160 mm, and the interruption runs from the lower edge of the shrouding upwards at least to the level of the extrn roller axis. The side of the support beam towards the extn head is narrower than the width of the interruption. The extn head approaches by 10-60 mm, the gap between the circle described by the rotating extractor and the surface of the support beam. ADVANTAGE: The system gives sufficient support to the bales at each end of the row, particaularly the leading bale, without significant increase in air consumption.
Patent DE-3931985-A1 (DE)
Title: Transport magazine for wafers in clean room - has transport carriage with enclosed magazine chamber with movable wall member(s)
Inventor: GROH ROLF
IPC: H01L21/673
Filed: 1989-09-26
Abstract: The magazine has a transport carriage with compartments for supports. The carriage (5) has a fully enclosed magazine chamber (6) with a movable wall element at least one one  side.  The carriage is fitted with at least one fan (10) for circulating air (11) in the magazine chamber. Pref. the wall element is in the form of a flat slider moved by an electric motor between sealing members in a side wall of the transport carriage.  The magazine chamber has holders above the compartments, whose grippers may secure the wafers (1) during transport.  The compartments may be fitted to two opposite outer sides of the magazine chamber, the movable wall element being associated with each row of compartments. USE/ADVANTAGE - Inter-operational transport, i.e. between processing stages in same or different clean rooms with comfortable operation and reduced contamination risk.  Suitable for non-technical personnel and effective over long stretch.
Patent DE-3936563-A1 (DE)
Title: Monitoring arrangement for printer paper - detects missing, detective or multiple sheets from tilt angle of clamping gripper at defined gripping drum positions
Inventor: KOCH GUENTER
IPC: B65H7/02
Filed: 1989-11-03
Abstract: The arrangement for monitoring printing paper for defective, multiple or missing sheets eing extracted singly from a stack by a gripping arm measures paper thickness via the pivot angle of a clamping gripper (3) engaging sheets in a defined drum position. An error is detectred if the angle lies outside tolerance and a control pulse is triggered. A distance measurement system contains a position measurement element (6) positively moved by the gripper into engagement with a transducer (7) on the drum (2) axle (8). A pulse generator (10) defines the measurement instant. ADVANTAGE - Minimal construction cost.
Patent DE-3937322-A1 (DE)
Inventor: ESSER REINHARD
IPC: G01C9/06
Filed: 1989-11-09
Abstract: In the process for operating a coating apparatus, it is provided for changes in the angle of the coating edge of a doctoring element, for example in relation to the horizontal, to be directly detected by means of a signal transmitter which is mounted on the doctoring element 1 in the vicinity of its coating edge 18. This signal transmitter can operate on an electromagnetic basis so that the signal is transmitted in a wireless fashion to a receiver. An inclination switch is preferably provided, said switch detecting small deviations of a desired angle of the coating edge 18 in relation to, for example, the horizontal by means of the displacement of a mercury bead and two electrodes which are shortcircuited by the mercury bead. 
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Patent DE-3939020-A1 (DE)
Title: HF power transmit stage - has adapting transmitter, increasing output impedance of HF power transmits stage
Inventor: BECKER STEFAN DIPL ING
IPC: H03F3/19
Filed: 1989-11-25
Abstract: The transmit stage has two transistors energised in a push-pull mode. The output impedance of the HF power transmit stage is increased by a matching converter (21) typically in the form of a matching transformer.  The transformer is of a power dividing type with at least two outputs. There are provided resistors (42,47) in the emitter or source electrode branches of the transistors (6,7) in parallel to a series connection of a resistor (48) and a capacitor (49).  The resistance value of the emitter and source electrode resistors and the dimensioning of the matching transformer may be matched w.r.t. each other.  At a specified load impedance and output impedance of the stage the matching transformer may be so dimensioned that its output impedance is precisely specified. ADVANTAGE - Reduced lossy power, high output impedance and high backflow attenuation.
Patent DE-3940047-A1 (DE)
Title: Open end spinning machine belt drive - has adjustment on tension pulley to reduce noise and wear
Inventor: KACALEK JOSEF
IPC: D01H1/241
Filed: 1989-12-04
Abstract: For an open-end spinning frame with each unit being driven by a continuous belt which is pressed against the drive shaft by an elsatic or spring loaded tension pulley, held to the frame by a swivel bracket, the plate holding the bearing for the pressure pulley is given a certain amount of flexibility. ADVANTAGE - Simplifies the problem of erratic belt drive, and so reduces noise and wear.
Patent DE-3941829-A1 (DE)
Title: Soil substrate as soil conditioner - has low Sulphur content and good biological properties and contains effluent sludge, clay minerals, sand and gravel
Inventor: HERES HANS
IPC: C09K17/40
Filed: 1989-12-19
Abstract: Soil substrate (I) as soil conditioner comprises a mixt. of clay minerals (or mixt. of) (20 vol. %) effluent sludge (30 vol. %) and sand and gravel (50%). (I) has a dry mass content of 80-90 wt. % and forms a granulate mixt. contg: clay (20 wt. %; less than 2 micron) silt (15 wt. % 2-63 micron dia) and sand (65 wt. % 63-2000 micron and dia. with a high content of medium sized sand of dia. 200-630 micron. At pH 7-8 the content is 0.3-0.45 wt. % and total nitrogen content is 0.07-0.08 wt. %. ADVANTAGE - (I) provides a means of processing, e.g. sewage, has good structural stability and may be used e.g. for packing sloping land. It has a low sulphur content and good biological properties.
Patent DE-3942394-A1 (DE)
Inventor: WERNICKE UBBO DR
IPC: G03D3/13
Filed: 1989-12-21
Abstract: A device (1) for developing photographic emulsion carriers comprises a plurality of processing tanks (3-9) through which the emulsion carriers pass in succession and which are connected by transfer devices (22). At least one processing tank (4) contains a liquid developer suitable for developing copies of original negatives. An additional processing tank (3) containing a bath of reversal liquid is arranged in front of the processing tank (3) in the direction of flow. In addition to the inlet opening, the reversal tank (3) has an additional inlet opening at the end of a guide (23, 24, 23a, 25, 27) which bridges the reversal tank (3) and leads to the processing tank (4) for developing the copies of original negatives.
Patent DE-4000071-A1 (DE)
Title: Compact bi-stable electromagnetic servo-valve for fluid flow control - has magnetised closure element driven by reversible winding current between I=O seatings
Inventor: LUNGU CORNELIU DIPL ING
IPC: H01F7/122
Filed: 1990-01-03
Abstract: The faces of two projections (36,38) from opposite sides into closur
Patent DE-4000721-A1 (DE)
Title: Medium voltage switch appts. - has incorporated fault protection and monitors load parameters to activate release for earthing switch
Inventor: HOLLMANN FRITZ
IPC: H02B13/065
Filed: 1990-01-12
Abstract: The MV switch appts. has a cable connection field for a number of supplied loads (8..11) and an associated switch field (1) with an earthing switch release (6) coupled to fault sensors (12..15) for each of the loads (8..11). Each of the fault sensors (12..15) pref. responds to a variation in a monitored parameter, to operate an electromagnetic operating device for the release (6). Pref. the fault sensor (12..15) include a photocell for e)detecting arcing, a temp sensor, a pressure sensor and an overcurrent sensor. ADVANTAGE - Reliable disconnection of faulty load.
Patent DE-4001862-A1 (DE)
Title: For parts fastener screw connection - is located in sealed space formed by stud and sleeve
Inventor: MUELLER WOLFGANG
IPC: B05B12/12
Filed: 1990-01-23
Abstract: The screw connection is for removable fastening of parts to carriers, esp. data labels on assembly crossheads in vehicle production. It consists of a holder arm for the part, and a seat section on the carrier, to which the arm is screwed. The holder arm (2) carries a rigidly fastened sleeve (5). The carrier has a stud (12), which projects partly into the sleeve. Sleeve and stud work together sealing near the open end. The screw connection (3) is located in the sealed space enclosed by the sleeve. USE/ADVANTAGE - Fastener on parts conveying machine is easy to remove and insensitive to treatment bath and coatings.
Patent DE-4003856-A1 (DE)
Title: Air cushion for packing fragile articles - is made from plastics film and sealed by welding
Inventor: HERZOG ROLF
IPC: B31B70/00
Filed: 1990-02-09
Abstract: The air cushion is used for packing fragile articles, is made from a sheet of plastics film which is folded and then welded around the edges to form an air-tight joint. The cusion is inflated with air from an air-compressor and held closed until it is welded. The cushion is fitted with a valve to limit the internal pressure to the required level. This type of cushion can be used instead of cushions made from framed plastics for packing purposes. ADVANTAGE - When uninflated, the air cushion occupies less storage space than does a cushion made of framed plastics and is harmless to the environment.
Patent DE-4017878-A1 (DE)
Title: Deriving key signal from foreground of video signal - using three=dimensional zone enclosed on all sides for increased colour possibilities
Inventor: KARALLUS GUENTER DIPL ING
IPC: H04N9/75
Filed: 1990-06-02
Abstract: In a method for density the key signal that, for fed in video signals which correspond to one colour location within a selectable region, a first level is used, for other colour locations, a second level.  The selectable region is a three-dimensional all-sides enclosed region. Two respective multipliers (13,14; 15,16) receive a chrominance signal and the sine and cosine functions of an adjustable angle.  The outputs feed adders (18,19) and these feed an absolute value circuit (22,23).  One of these feeds a further adder (26) direct, and the other via a further multiplier (24).  The further adder (26) feeds a series arrangement of a substracter (28), a multipler (29) and a limiter (31). ADVANTAGE - Allows even colours of low saturation to be used.