baber/WOPTO huggingface dataset:
Patent DE-4228356-A1 (DE)
Inventor: BSCHORR OSKAR DR
IPC: G10K11/172
Filed: 1992-08-26
Abstract: In a cavity resonator 402 having a variable resonance frequency, a constantly high sound-absorbing effect is achieved over the entire resonance adjustment range by also simultaneously adjusting, with the length, the cross-sectional area of the resonator neck 408 in accordance with an appropriately selected resonance/flow impedance relationship and, additionally, compensating the selfdamping of the resonator, for example with the aid of a heating device 432 arranged in the resonator neck 408.
Patent DE-4233285-A1 (DE)
Title: Moving yarn break sensor - uses reflected optical signal from yarn modulated to separate it from ambient frequencies
Inventor: HARTMANN KLAUS DR ING
IPC: B65H63/032
Filed: 1992-10-02
Abstract: To register a break in a moving yarn, an optical signal is transmitted (1) and reflected from the yarn (6). The signal is modulated to give it a different frequency from a radiation in the yarn (6) environment. The reflected signal is received (2), demodulated, and transferred to an electronic evaluation system. Also claimed is an appts. with a yarn break sensor (1, 2) with a transmitter (1) and receiver (2). The receiver (2) is linked to an electronic evaluation system. Pref. the modulation frequency of the signal is variable, for simple components at the receiver (2) such as cheap resistor capacitors. The receiver (2) signal has an adjustable pulse/pause ratio to give a low current consumption at the transmitter (1) and receiver (2) while still giving a usable measurement signal at the receiver (2). The transmitter (1) is given a pulsed electrical current during the pauses.
Patent DE-4233894-A1 (DE)
Title: Plastic injection moulding tool with more versatile guidance - uses standard blank bush premachined only in pillar guiding and centering areas and having unmachined outer dia. of locating flange.
IPC: F16C33/24
Filed: 1992-10-08
Abstract: An injection moulding tool for plastics has at least one guide pillar and bush. The bush has a cylindrical outer face (A) acting as a centering length and a locating flange (24) at a distance from the centering length according to tool plate thickness. The pillar is guided by a circular length (IM) inside the bush which runs into a slightly larger bore (DB) with play button itself and the pillar. The bush is mfd. from a standard blank which has a pre-machined centering length (AM) and pillar guiding face (IM). The pre-machined bush is longer than required and has a dia. equal to that of the location flange (24). Both the location flange (24) and where required a second bush centering length (26) are located in an area axially adjacent to the centering area (FZ). Cut-outs (27) in the centering length (FZ) break into the inner guiding face (IM) and contain grease. The axial length of the guiding and centering length (FZ) is shorter than the lowest thickness of several successive thickness of tool plates by the axial length of the location flange (24). USE/ADVANTAGE - For accurate guidance in injection moulding tools for plastics. When related to a given pillar dia. one blank bush can be used for a number of different thickness of tool plates.
Patent DE-4239944-A1 (DE)
Title: Flat metal seal for cylinder heads in IC engines - is formed with punched out contours and openings and imprinted grooves prior to tempering steel.
Inventor: HAASE ULRICH DIPL ING
IPC: F16J15/12
Filed: 1992-11-27
Abstract: The seal is made up of one or more superposed sealing plates. At least one plate is made from spring sheet steel by punching out the sealing contours and through openings and imprinting the grooves round the openings before the steel plate is tempered and annealed. The sealing plate can have on one or both sides a coating to improve micro sealing and/or protect against corrosion. Sealing elements of softer material can be placed at one of the through openings in the plate. USE/ADVANTAGE - High precision low cost mfr. of flat metal seal for IC engine cylinder head.
Patent DE-4241961-A1 (DE)
Title: Microencapsulated aliphatic bromine cpds. - for use in organic coating as flame retardant, useful in lacquer, paint and other protective coating compsns.
Inventor: TEUSCHLER HANS-JOACHIM DR RER
IPC: C09D5/18
Filed: 1992-12-12
Abstract: In the prodn. of organic protective coatings and decorations with integrated flame retardants based on halogens, microencapsulated aliphatic Br cpds. (I) are added to these systems. The microcapsules pref. have shells of thermosetting and/or thermoplastic polymers and/or elastomer. They have a dia. of 100 nm to 100 microns and are used as free-running material, pref. in concns. of 0.1-10 (wt.)%. The wt. ratio of shell to encapsulate is 2:1 to 1:2. (I) are CBr4 and partly and/or completely brominated alkanes and/or alkenes with up to 17C. Urea, guanidine, melamine and dicyanodiamide cpds. are added. USE/ADVANTAGE - Microcapsules contg. (I) reduce the flammability and increase the fire extinguishing power of the system, which may be any type of lacquer, paint and protective compsn. They are economical, since only small amts. need be added, highly effective and relatively friendly to the environme
Patent DE-4242134-A1 (DE)
Title: Photochemically  stable dyed cellulosic or polyamide textiles - obtd. by treating dyed material with a catalytically crosslinkable N-methylol-urea or N-methylol-melamine cpd.
Inventor: FRITZSCHE KATHARINA DR
IPC: D06P5/06
Filed: 1992-12-14
Abstract: A process for producing coloured cellulose or polyamide fibre materials (I) which are stable to photochromism, by treating the dyed material with a N-methylol-urea or N-methylol-melamine cpd. (II) which is crosslinked by heating in the presence of catalysts. Also claimed is a process for determining photochromism, by exposing part of the textile sample to light and keeping the other part covered, testing both parts by colorimetry, keeping the sample in the dark for at least 48 hrs. and repeating the colorimetric measurements; photochromism is calculated from the difference between the first two measurements, allowing for any correction due to the second measurements. USE/ADVANTAGE - Crosslinkable cpds. (II) are useful for treating (I) to increase their stability to photochromism (claimed). The process provides a means of preventing colour change in dyed textiles when exposed to light (esp. preventing the formation of green or brown colours with yellow and orange azo dyes
Patent DE-4309400-A1 (DE)
Title: Hot embossing base with colour transferred from embossing film for efficiency - by supplying heat by radiation from halogen tube to base and/or embossing film shortly prior to pressing, for embossing vehicle number plates and rapid start=up
IPC: B29C59/04
Filed: 1993-03-23
Abstract: Heat is supplied by radiation to the base and/or embossing film shortly before they are pressed together. Pref. appts. has a radiation source (15) arranged across the whole width of the embossing film (5). A cylindrical glass rod (19) may act as collimator and also to exert counter pressure. Embossing film (5) is pref. suppied from a roll (3) and used film is wound up under tension on another roll (4). The article to be embossed is placed on a feed table (17), taken in by afeed roller (6) and forward to the embossing roll (7), both rolls having spring loaded nip rolls (8.9). Heat is supplied by a halogen tube (15) which has a reflector (16). A glass rod (19) collimates the radiation and concentrates partic. into the zone just prior to the embossing roll (7). USE/ADVNATAGE - The radiant heat is more efficient and gives more rapid heating on start-up. It is partic. useful for embossing vehicle number plates.
Patent DE-4309980-A1 (DE)
Title: Device for the low-temperature cooling of an infrared detector arrangement
Inventor: PUNDAK NALHMAN
IPC: F25B9/14
Filed: 1993-03-29
Abstract: The invention relates to a device for the low-temperature cooling of an infrared detector arrangement. The device has a refrigerating unit which works according to the Stirling gas-cooling process, and a cooled radiation shield arrangement. The refrigerating unit has a refrigerating finger which contains a first expansion-cooling stage and, at its outer end, a second expansion-cooling stage. The infrared detector arrangement is arranged at the tip of the refrigerating finger and can be cooled by the second expansion-cooling stage. The radiation shield arrangement is connected to the first expansion-cooling stage of the refrigerating finger. <IMAGE>
Patent DE-4310631-A1 (DE)
Title: Feeding device for profiling window bars (transoms) made of wood or the like
Inventor: STEGHERR LUDOLF
IPC: B23Q3/00
Filed: 1993-04-01
Abstract: In a feeding device for profiling window bars made of wood in which wooden strips to be profiled are profiled on one or both sides between stop and counterstop in a continuous process on a stationary profile cutter, the feeding device is designed as an attachable unit on a shaping machine, there is provided a housing which forms a stop and in which driven, mutually overlapping drive rollers in driving engagement with the workpiece are arranged in such a way that the axial distance between two neighbouring rollers is considerably smaller than the roller diameter, and there is provided on the cutter side a divided counterstop which is adjustable in accordance with the shaped profile.
Patent DE-4311327-A1 (DE)
Title: Therapeutic equipment (device) for treatment using acoustic (sound) waves
Inventor: GRANZ BERND DR
IPC: A61N7/00
Filed: 1993-04-06
Abstract: The invention relates to therapeutic equipment for treatment using acoustic waves, having a source for generating the acoustic waves which fill a bandwidth bounded by an upper and a lower cut-off frequency (fo and fu, respectively), which amounts to at least 5% of the centre frequency (mid-frequency) (fm) of the acoustic waves. <IMAGE>
Patent DE-4315855-A1 (DE)
Title: Homing head for a missile
Inventor: DAEHNE CLAUS DIPL PHYS DR
IPC: G02B27/00
Filed: 1993-05-12
Abstract: In a homing head for a high-speed missile for use in the hypersonic range (> Mach 3), an optical imaging system (18) and a detector (20) are arranged behind a cover (12), in a fixed position relative to this cover (12), which permits the passage of light to the imaging system (18). The cover (12) has an aerodynamically optimised shape with a surface which is curved even in the region of the beam path (28) of the optical imaging system (18). To correct the phase deformation caused by the cover (12), there is additionally arranged in the beam path (28) of the imaging system a diffractive optical element (30) in the shape of a binary optical element. <IMAGE>
Patent DE-4316951-A1 (DE)
Title: Hydraulic drive, in particular a hydraulic traction drive for a vehicle
Inventor: BROSSMANN ANDREAS
IPC: F15B13/02
Filed: 1993-05-21
Abstract: The invention starts from a hydraulic drive, in particular a hydraulic traction drive for a vehicle, which has a variable displacement pump, several hydraulic motors, and a differential-lock valve which contains a flow divider and a directional valve. In a first operating position of the directional valve, the flow of pressure medium reaches the hydraulic motors while bypassing the flow divider. In a second operating position of the directional valve, the flow divider is connected in the flow of pressure medium. According to the invention, provision is made for the flow divider to be of such nominal size that its maximum predetermined volumetric flow is substantially smaller than the maximum delivery flow of the variable displacement pump. This enables the same flow divider to be used for variable displacement pumps of different nominal size. Such a design is based on the idea that the differential lock is normally made effective only at a slow speed of the vehicle and then the delivery flow of the variable displacement pump is only slight.
Patent DE-4319025-A1 (DE)
Title: Rollable capotasto with saddle and string holding-down function for master tuner guitars and basses
Inventor: LIEBCHEN LARS GUNNAR
IPC: G10D3/04
Filed: 1993-06-08
Abstract: The rollable capotasto with saddle and string holding-down function is suitable in particular for master tuner guitars and basses. The capotasto has a pin which can be positioned in the region of a fingerboard of the instrument as well as a pressing arrangement which braces the pin relative to a neck of the instrument. The pressing arrangement is formed from at least one flexible element which, in the region of its ends, is connected to ends facing away from one another of the pin and is braced relative to the pin. Rolling parts are guided on the flexible element.
Patent DE-4322103-A1 (DE)
Title: Flat knitting machine
Inventor: SCHIMKO REINHOLD
IPC: D04B15/10
Filed: 1993-07-02
Abstract: In a flat knitting machine with at least two needle beds (1) which have needle channels (2) and in each of which a needle is displaceable, a reliable mode of operation is ensured in that the needle channels (2) each have at least one region (12) open downwards over part of the needle travel. Dust or dirt penetrating into the needle channel (2) or the box-spring channel (6) can fall out of the needle channels (2) or the box-spring channels (6) downwards through the region (12) open downwards, so as to avoid an accumulation and compaction of the dirt in the needle channels which can lead to operating faults and needle fractures. <IMAGE>
Patent DE-4322666-A1 (DE)
Inventor: IMAMURA YOICHI
IPC: G11C11/401
Filed: 1993-07-07
Abstract: A matrix-type display control device suited to large capacity displays while achieving low power consumption operation is provided by improving the display data transfer method. The module controller 100 of a simple matrix-type liquid crystal display comprises a low frequency oscillator 110, timing signal generator 120, standby circuit (display data refresh detection circuit) 130, high frequency oscillator 140, and a direct memory access (DMA circuit) 150. This low frequency oscillator 110 constantly generates the low frequency clock f L . Timing signal generator 120 generates the scanstart signal YD required for the LCD module 200, and other signals based on the low frequency clock f L . Standby circuit 130 generates the intermittent operation start control signal ST when the display data in VRAM 12 is updated as determined by monitoring the system bus 14a for communications with the host MPU 10. The high frequency oscillator 140 generates the high frequency clock f H phase synchronised to the low frequency clock f L during the intermittent operation start control signal ST apply period. The DMA circuit 150 reads the display data from the VRAM 12 over dedicated bus 14b by direct memory access, and transfers the display data over data bus 17 to the RAM frame memories 252 - 1   252 - N of X drivers 250 - 1 250 - N during the applied time of the intermittent operation start control signal ST using the high frequency clock f H .
Patent DE-4326697-A1 (DE)
Title: Device for admitting at least one gas
Inventor: STRAUCH GERT DIPL ING
IPC: C23C16/44
Filed: 1993-08-09
Abstract: A description is given of a device for admitting at least one gas into a receiver in which there is arranged a substrate which is coated with the gas or gases from the vapour phase, having a gas-conveying system which comprises at least one supply line having an inlet opening from which the gas enters the receiver, and at least one outlet opening through which the gas is removed from the receiver by suction. The invention is distinguished in that the supply lines widen in longitudinal section before the inlet opening(s) and merge, without an edge, into the area surrounding the inlet opening, and in that the pressure and the flow of the gas or gases are set such that the gases enter the receiver with a laminar and low Venturi flow.
Patent DE-4332282-A1 (DE)
Title: Method for the production of printed circuits
Inventor: SCHWAEGERL PETER DIPL ING
IPC: H01L21/48
Filed: 1993-09-23
Abstract: When printed circuits are printed by screen printing without etching, porous conductor tracks can be produced during sintering, which adversely affect the bonding capability. In order to overcome this disadvantage, it is proposed to apply the conductor tracks in partial layers in successive method steps.
Patent DE-4334302-A1 (DE)
Title: Device for mounting cap-shaped lids on the necks of jars, bottles or the like
Inventor: KORDYLA HANS DIPL ING
IPC: B67B3/20
Filed: 1993-10-08
Abstract: Device for mounting cap-shaped lids on the necks of jars, bottles or the like, having means for transporting the jars in a row and having a feeding device for feeding the lids in the same conveying direction as the jars at an angle with their open end pointing in the direction of movement of the upper edges of the necks of the jars at a vertical level in which the respectively upper edge of a neck of a jar comes into contact with the front edge, in the direction of movement, of a lid which is fed in an inclined position and carries the said lid along with it concomitantly. The feeding device is held in a vertically movable fashion during operation and is adjusted to the different heights of the jars by scanning means which scan the height of the edge of each neck of a jar. This ensures that the lids are carried along concomitantly by the necks of the jars in a reliable fashion and, in addition, avoids the danger of squeezing of the lids and jars and chipping of the upper edges of the jars. <IMAGE>
Patent DE-4334598-A1 (DE)
Title: Integral absorber for solar, light, and radiant energy of homogeneous design
Inventor: KIESLICH WOLFGANG DIPL ING
IPC: F24S10/50
Filed: 1993-10-11
Abstract: Technical problem, object and aim Solar collectors are produced from various materials and parts. Absorbers are used without insulation. As energy-activating construction elements, collectors and absorbers of conventional construction are difficult to integrate architecturally. The integral absorber according to the invention is to find use, as a result of its construction, both as absorber, collector and as construction element with corresponding properties. Solution of the problem From reusable material, a hollow body is produced in the casting process, through which hollow body the energy carrier medium is conveyed and which obtains its insulation by means of a vacuum in the hollow spaces of its wall. Depicted in the drawing are: 1 Glass/foil cover, 2 transparent heat insulation (capable of being braced together with the glass/foil cover), 3 absorber wall, 4 energy transmission space, 5 hollow spaces/vacuum, 6 photovoltaic module. Field of application For water heating and other use, with energy transmission to energy carrier media, for air conditioning, heating and process-heat generation. By virtue of its structural shape and appropriate dimensions, the integral absorber can be directly integrated architecturally as a construction element. <IMAGE>
Patent DE-4335356-A1 (DE)
Title: Comminuting device having at least one revolving shaft and having at least one disc with cutting teeth on said shaft
Inventor: ROSENBERGER ERNST
IPC: B02C18/18
Filed: 1993-10-16
Abstract: In the case of a comminuting device having a revolving shaft and at least one disc with cutting teeth on said shaft, the disc comprises two parts 7 and 8 which are identical to one another, but are mounted to be offset with respect to one another, such that, on each of the two disc parts 7 and 8, a part 14 of the separating surface remains free and thus forms the end surface of a cutting tooth. The two disc parts 7 and 8 are connected to one another by screws 11 and 12 and, by releasing said screws 11 and 12, can be demounted from one another and from the shaft 5. <IMAGE>
Patent DE-4337793-A1 (DE)
Title: Method and device for assessing the functional condition of a catalytic converter
Inventor: SCHNAIBEL EBERHARD DIPL ING
IPC: F01N11/00
Filed: 1993-11-05
Abstract: The method according to the invention uses an arbitrary, known amplitude evaluation for control oscillations of the oxygen content in the exhaust gas of an internal combustion engine before and after a catalytic converter to assess the functional condition of the same, in order to establish whether the catalytic converter has already aged considerably. As soon as this is established using the amplitude evaluation, a change-over is made to an arbitrary, known frequency evaluation to assess the functional condition of a catalytic converter. Such evaluations are sensitive but have a generally relatively severe influence on the operating behaviour of an engine. In the case of the method according to the invention, this disadvantage does not arise, however, since the change-over to the frequency evaluation is only carried out when the catalytic converter has already aged rather severely. <IMAGE>
Patent DE-4344790-A1 (DE)
Title: Superimpose control device for video camera and recording device
Inventor: YU HO-YONG
IPC: H04N5/265
Filed: 1993-12-28
Abstract: The device operates by storing a signal applied through a camera as title data, isolating only the colour signal from either of two applied video signals. The colour burst signal level is regulated using the colour signals output from the luminance/chrominance signal separator (6) and that from a video reproduction circuit as an input signal. The signal output from the automatic colour signal control circuit (8) and the phase difference of the sub-carrier is detected. The sub-carrier is synchronised with the phase of the colour burst signal and the result is output in accordance with the output signal of the phase difference detector (9).
Patent DE-4400306-A1 (DE)
Title: Clamp device for adjustable steering column in motor vehicle
Inventor: GRAMS KAY-UWE DIPL ING
IPC: B62D1/18
Filed: 1994-01-07
Abstract: The device contains an integral unit, which is premounted on the bar (6). The unit consists of tilt pin (7) and abutments (12,10) for the pin on housing and bar collar (11), and a spring, which expands the abutments. The housing-sided abutment supports itself against a support ring (21), which is located on the bar during pre-mounting.The support ring has a stop for mounting of the grip (17), which is pushed non-turnably onto the bar. The opposite end of the bar supports itself with an axial roller bearing (15) against a thrust washer (14) in the housing opening.
Patent DE-4404743-A1 (DE)
Title: Prepn. of aryl urea cpds. contg. thioether or sulphonyl gp.
IPC: C07C317/28
Filed: 1994-02-15
Abstract: The prepn. of an aryl urea contg.a thioether or sulphonyl gp. and of formula (I) involves reaction of an aryl urea of formula (II) with an amine of formula (III) at 80-180 (pref. 95-150) deg.C, opt. in an inert diluent. Novelty comprises performing the reaction in the presence of a catalyst comprising (i) a phosphorous acid; (ii) a 1-4C alkyl ester of a phosphorous acid; or (iii) Ph3P. Catalyst (i) is esp. pref. In the formulae, n = 0 or 2; R<1>-R<3> = H, 1-4C alkyl or alkoxy, halogen, OH, hydroxysulphonyl, carboxyl, CN, NO2, 2-4C alkanoylamino or 1-4C alkoxycarbonylamino; ring A is opt. benzo-fused; R<4> and R<5> = H, 1-4C alkyl or phenyl; L = 2-4C alkylene (opt. interrupted by O, imino or N-(1-4C alkyl)imino); or NR<5> + L = a gp. of formula (IV); and Z = OH or a gp. splitting off under alkaline reaction conditions.