baber/WOPTO huggingface dataset:
Patent DE-4130266-A1 (DE)
Title: Organic photoconductor thin film contg. n-benzhydryl aryl amine - esp. used for electrophotographic material, has high sensitivity and strength and low dark decay
Inventor: MAIS SILVIO DIPL CHEM
IPC: G03G5/06
Filed: 1991-09-12
Abstract: Organic thin films with photoconductive properties are claimed, pref. for electrophotographic recording materials, having an electroconductive substrate and photoconductive coat(s) contg. binder and active substance. These films contain an N-benzhydryl-arylamine of the formula: (I) (where A = a substd. phenyl or diphenyldiyl gp. of the formulae (II) and (III) R1-3 = H, halogen, alkyl, alkoxy, -COR, -CF3, NO2, N-alkyl, N-dialkyl, N-benzyl or N-dibenzyl and R3 may also = -NH-CH(PhNR1R2)2 and the ring(s) of A contains at least one R3 substit.; R is not defined). The thin film pref. contains (I) alone or in a mixt., sensitised or unsensitised, in solid soln. in a polymer matrix, as single or double layer or as vapour deposited film. The polymeric binder is compatible with a large amt. of additives and pref. is a polycarbonate. In mixts., the binder contains 5-70 (wt.)% as actinic component. (I) can be prepd. by 2 routes, involving: (1) condensation of a ketone with a substd. aniline (II) in the presence of small amts. of HBr at 170 deg.C, followed by redn. of the ketimine with Mg turnings in MeOH or catalytic hydrogenation; or (2) condensation of a hydrol (III) with (II) in EtOH. (III) is prepd. by redn., e.g. with Mg in MeOH. USE/ADVANTAGE - For electrophotographic materials for making offset printing plates, dispositives, microfilms, projection films, originals for copying, electronic devices and photoconductive layers in copiers, laser-COM equipment and other laser printers. They have high photosensitivity, high film-forming properties and high mechanical strength and can be produced easily in high purity and yield, using very few synthesis stages. The dark decay is better than for photoconductors with similar structure but no benzhydrylamino gps.
Patent DE-4130286-A1 (DE)
Title: Package-sealing machine - comprises hinging plate on package mounting with opening for centring covering cowl
Inventor: KIEFER GUENTHER
IPC: B65B11/50
Filed: 1991-09-12
Abstract: The sealing equipment is for a package comprising a flat support and a cowl enclosing the goods between them, and of cardboard or plastics. Mountings travel between the loading and sealing stations, and the sealing electrode is adjustable for height above them. A plate(9) hinging on each mounting contains a hole(10) for centring the cowl(11). The mountings(1) can have a flat top surface or they can be recessed where the goods protrudes through the support. They can also contain centring pins(7) for the goods. ADVANTAGE - Leaves no impressions by electrode on the flat support.
Patent DE-4131033-A1 (DE)
Title: Radial piston pump driven by eccentric - uses ball in cage to control valve closure time and reduce noise
Inventor: WECKBRODT KLAUS
IPC: F04B53/12
Filed: 1991-09-18
Abstract: The radial piston pump has a piston (4) driven by an eccentric (3). It draws in oil via an inlet hole (12) in the piston base (9) which is closed by a valve (13) comprising a ball (15) and a seat (14). The ball is held in a cage (18) such that a flow cross section (F) of the inlet hole is greater than a flow cross-section (F1) between the maximum diameter (K) of the ball and the cage. Openings (20) are set above the ball, the movement of which is limited by a crosspiece (22). USE/ADVANTAGE - Pump in which the valve closure time is shortened and the valve noise reduced.
Patent DE-4131327-A1 (DE)
Title: Expanding grip for wide necked containers and cans - has expanding flexible hose in outer groove of grip insert on extending piston mounting
Inventor: SEIFERT GUENTER
IPC: B65G47/90
Filed: 1991-09-20
Abstract: The grip is positioned onto the neck of the container (2) and the hose (23) is inflated to grip the inside walls of the neck. The outer surface of the hose has grip ridges to assist holding the container. The grip is mounted on the end of a piston system. The expanding hose replaces a multi-element mechanical grip. The expansion control can be pneumatic and linked to the piston operation. Return springs control the piston settings. USE/ADVANTAGE - Labelling machine for cans. inspection hold for container line. Simple grip, few mechanical parts, no damage to container.
Patent DE-4135170-A1 (DE)
Inventor: HAGER RUDOLF DIPL CHEM DR
IPC: C07F7/08
Filed: 1991-10-24
Abstract: According to a process for preparing organosilicon compounds having sulphur-containing organic residues, organosilicon compounds made of units having general formula (I) are reacted with sulphite in the presence of water. In the formula (I), R may be the same or different and stand for a monovalent organic residue; R<1> may be the same or different and stand for a hydrogen atom or for a monovalent organic residue; R<2> may be the same or different and stand for a residue -QX, in which Q stands for a bivalent hydrocarbon residue and X stands for a halogen atom; a equals 0, 1, 2 or 3; b equals 0, 1, 2 or 3 and c equals 0, 1, 2 or 3, provided that the organosilicon compound contains at least one R<2> residue per molecule and the sum of a, b and c is less than or equal to 4.
Patent DE-4136660-A1 (DE)
Title: Ester(s) from di:cyclo:pentadiene and carboxylic acids - by reaction in the presence of boron tri:fluoride, followed by fractional vacuum distn. to isolate the pure ester
Inventor: SCHUSTER LUDWIG DR
IPC: C07C67/04
Filed: 1991-11-07
Abstract: A process for producing esters (I) from dicyclopentadiene (II) and 1-5C carboxylic acid(s) (III), by reacting (II) with (IIII) in the presence of BF3. The novelty is that (I) are isolated from the reaction mixt. by fractional distn. under reduced pressure. Pref. the various distn. fractions are combined, mixed with more 1-5C acid (III), and reacted again with (II). (III) is an alpha, beta-mono-unsatd. acid, pref. acrylic acid. USE/ADVANTAGE - (I) are useful as perfume materials (esters of satd. acids) and auxiliary monomers for the prodn. of polymers (unsatd. esters). The invention provides a simpler method for isolating pure (I) from the reaction mixt.; prior-art extraction methods are complicated by the formation of stable emulsions
Patent DE-4138597-A1 (DE)
Title: Mobile processing and=or crushing plant - comprises saddle trailer-locator chassis supporting input conveyor for material, breaker, and outlet conveyor for crushed material together with controls
Inventor: KRONENBERGER ERNST JOSEF
IPC: B02C21/02
Filed: 1991-11-23
Abstract: The input conveyor (1) has an input funnel (3) on a side wall (2) fixed to the chassis (20), relative to which is a loose floor (6) which is vibratingly located on a fixed frame (5). The floor in the direction towards the breaker (11) rises at an angle (alpha) between 5 and 15 deg. to the horizontal. At least the upper area of the floor before its discharge end (8) is formed as a sieve floor, beneath which is a catchment funnel (9) for material coming through the sleeve. The floor is formed as a vibration conveyor with at least one unit for producing vibrations (12). The conveyor floor is formed with scale-shaping floor plates arranged in series with thrust edges pointing in the delivery direction. USE/ADVANTAGE - To deliver material for disintegration, using a vibrating floor system.
Patent DE-4140112-A1 (DE)
IPC: H03F3/72
Filed: 1991-12-05
Abstract: In order to measure extremely small fluxes quickly, accurately and without interference, the proposal is that fluxes with very small intensities be amplified at least once by means of in-line amplifiers (2, 9, 13), signals be taken at the outputs (4, 11, 14) of said amplifiers to form measurements from various current sectors, currents with greater intensities be conducted via one or more components (18, 19), the conductivity of which changes, into at least one further current path for higher currents, the change in conductivity of the components(s) (18, 19) of the amplifier output signal (4) derived from one of the previous stages, this amplifier output signal (4) of the amplifier (2) then changes only until the components (18, 19) have an adequate conductivity, the input potential of the further current path have a slightly different voltage while a heavier current is flowing and the current path for heavier currents have at least one output (23) to provide measurements for further current ranges.
Patent DE-4140256-A1 (DE)
IPC: F02M25/08
Filed: 1991-12-06
Abstract: Prior art venting devices have an adsorption filter (1) which is in communication with the atmosphere via a venting line (46) controlled by a venting valve (51). As they flow through, condensates are deposited in the venting valve and render it inoperative. By means of a vertical arrangement of the venting valve (51, 51') with a top magnetic circuit (54), the novel device ensures that condensates formed can flow away without adversely affecting the operation of the stop valve (51, 51'). The novel device is especially suitable for internal combustion engines in motor vehicles.
Patent DE-4201055-A1 (DE)
Title: Wiping and polishing cloth used in industry and households
Inventor: WIRZ PETER
IPC: A47L13/17
Filed: 1992-01-17
Abstract: Cloth is made from a fleece strip prepd. from melt-blown micro-fibres of thermoplastic synthetic, esp. polyolefin, and opt. a surfactant, with more than 50 wt.% of the micro-fibres being of linear low density polyethylene (LLDPE). The fleece is strengthened in places. Pref., the strip contains 0.3-5 wt.% of cationic surfactant as disinfectant, or of anionic and/or nonionic and/or amphoteric. Pref. cationic surfactant are ammonium cpds., e.g. quat. ammonium salts, benzyl ammonium salts, alkanolammonium salts, pyridinium salts, imidazolinium salts, oxazolinium salts, thiazolinium salts, sulphonium salts, quinolium salts and/or salts of amine oxides. The surfactants are applied to the surface of the micro-fibres or the strip, or are incorporated during prodn. of the synthetic. The strip may contain up to 5 wt.% of Na carboxymethylcellulose.
Patent DE-4203299-A1 (DE)
Title: Insulation monitor for intermediate voltage stage of frequency changer e.g. for mining equipment - uses balanced intermediate voltage reference for comparison with threshold and automatic disconnection under fault
Inventor: NEIDHARDT KLAUS DIPL ING
IPC: H02H7/12
Filed: 1992-01-31
Abstract: A circuit for monitoring the insulation of an enclosed frequency changer installation, as employed in mining, is connected to the intermediate pulsed DC voltage (UP) stage which exists between the mains supply (L1,L2,L3) rectifier and the three-phase (RST) output inverter. The positive (UKZ+) and negative (UKZ-) poles of the DC voltage (UP) are applied to a centre-tapped voltage divider network. Balanced proportions of the voltage (UP) are transient filtered (FE) and their resultant compared with an adjustable threshold voltage obtained from the internal source (US+, US-) in a controller (ME). On exceeding this threshold the LED's (LED+, LED-) afford visual indication of fault and the relay (K) disconnects the installation. USE/ADVANTAGE - For installation in mining equipment. Increases safety by continuous monitoring and in event of, e.g. earth fault, disconnects equipment. Filter circuit ensures that short duration transients do not initiate unnecessary disconnection.
Patent DE-4203384-A1 (DE)
Title: Two=part piston esp. for IC engine - has elastically deformable piston ring between piston base and skirt
Inventor: HUNGER WALTER DR ING
IPC: F16J9/28
Filed: 1992-02-06
Abstract: A piston engine piston consists of two separate parts, i.e. a piston base (3) and a piston skirt (2), which exhibit a limited amount of relative axial motion in the assembled state, the piston ring groove being formed between thses parts (2, 3) and the piston ring (15) being made of elastically deformable material. Pref. the piston ring (15) consists of (i) a basic body comprising a fluorosilicone rubber (FVMQ) or compressed gas core in a fluorine-contg. rubber (FPM) sheath and (ii), on the outer face of the basic body, a slide ring of a 'Teflon' (RTM) composite material. USE/ADVANTAGE - The piston may be used in a compressor or esp. an i.c. engine. Piston sealing in the cylinder is improved and effective for longer service life and frictional resistance is reduced, so that the engine develops higher power, has lower fuel consumption and has longer life.
Patent DE-4208506-A1 (DE)
Inventor: HARDER MICHAEL DIPL ING
IPC: B01D17/12
Filed: 1992-03-17
Abstract: A disposal apparatus for separating off oil is described, which comprises a dirt chamber (2), a prefilter (3), a pump (5), an oil separator (9), an oil container (13), a water collection chamber (14) and a displaceable partition (15). An intermediate filter (6) with a receiver vessel (7) is located between the pump (5) and the oil separator (9). <IMAGE>
Patent DE-4208933-A1 (DE)
Title: Television signal decoding device - has high frequency carrier in which video signal is coded connected to AM demodulator via tuner and demodulator recovering coded video signal
Inventor: CHRISTOPH MARTIN
IPC: H04N7/167
Filed: 1992-03-19
Abstract: A tuner (6) is provided for conversion of a modulated high frequency carrier to an intermediate frequency. A demodulator (9) with an AM demodulator (8) recovers the coded video signal and forms a modulated tone carrier, which has a second intermediate frequency, out of the signal emitted by the tuner (6). A decoder (11) is available for decoding the recovered video signal, and a remodulator circuit (1) with an oscillator (14) and a modulator (13) forms a first new high frequency carrier, which is modulated by the decoded video signal. A new high frequency carrier is formed and modulated by a tone signal. The remodulator circuit is intended to form a high frequency carrier, modulated by a tone signal, out of each modulated tone carrier emitted by the AM-demodulator.
Patent DE-4209199-A1 (DE)
Inventor: GERLACH HORST DR ING
IPC: H01H33/28
Filed: 1992-03-19
Abstract: The known high switching speed power and disconnecting switches, which operate using a spring-force drive, are unsuitable and not fast enough for the intended application for railway power systems. For this purpose, it is necessary to implement a high-speed interruptor switch having a low moved mass, without any unlocking system during disconnection and having a locking device, which is free of wear and is very fast, after disconnection. The interruptor switch according to the invention has two contact plates (1) which are arranged opposite one another, move axially and each support a magnetically conductive disc (7). The latter are pressed against a contact switching piece by means of in each case one contact-pressure spring (11). The contact switching piece supports a winding (6) whose excitation moves the contact plates (1) away from one another. The contact plates (1) are moved towards a permanent-magnet catchment device which locks the contact plate (1) in the open position and is provided with a demagnetising winding (13). The disconnector switch is provided especially for railway power systems having electronic commutation devices, in the case of which rapid disconnection of a damaged section outlet, and possibly rapid switching-on again, are required. Furthermore, it is suitable for all tasks requiring fast contact disconnection. <IMAGE>
Patent DE-4212186-A1 (DE)
Title: Specially designed pliers for locking or unlocking chain coupler - has one of its jaws set at right angles to its working surface from the pivot area
Inventor: AKTUNA METIN
IPC: B25B27/22
Filed: 1992-04-10
Abstract: The pliers are conventional in that they consists of two hand grips (4,5) on a common pivot (6) from where they are extended to form jaws (7,8). One jaw (7) is like that of an ordinary flat plier, but the other jaw (8) is shorter with a part, nearer to the pivot, flat (9) and off set at right angles from the pivot area. The end of this jaw (8) has a tip reduced in width (1,2,3), set off from each side, to enable it to grip the head fo the pine which holds the chain coupler, while the other jaw (7) presses against the end edge of the spring clip closer. ADVANTAGE - Can securely grip the pin and clip of the roller chain coupling link and remove or refix it without damage.
Patent DE-4212739-A1 (DE)
Title: Mechanical compact gear with cog wheels - with different numbers of teeth, has drive wheel, planetary arm and friction ring
Inventor: KLAUS MANFRED
IPC: F16H37/08
Filed: 1992-04-16
Abstract: The mechanical compact gear has cog wheels (96,7,9) with different numbers of teeth, and two or more rotary cog wheels making 4 and 12 relative movemens. The relative movement of one cog wheel (7) in relation to the fixed cog wheel (9) operates contrarily to the relative movement of the cog wheel (6) to cog wheel (7) and is continuously adjustable in amount. The drive wheel (1) has a planetary arm (2) as bearing for the friction ring (19) which has rounded cavities (18) on the back, and several recessed holes (16) containing balls (17) securely. ADVANTAGE - The gear has few constituent parts and is continuously adjustable and reversible.
Patent DE-4218006-A1 (DE)
Title: Folding step for use with rail vehicle door - uses transmission shaft to synchronise movement of door and step during opening and closing door
Inventor: KRUEGER WERNER
IPC: B61D23/02
Filed: 1992-06-01
Abstract: Drive arrangement for movable passenger access step having a folding step plate (16) swivel mounted about a horizonal axis (16. 1). The door panel (1) is displaceable about a top guide element, and at the base a guide rail (11) is provided for engagement with a roller lever (12). The lever has a rotary journal (12.1) coupled to the horizonal drive shaft (16.1) of the step by a transmission shaft (17.1. 17.2) containing a spring (19), and by a bevel gear drive (20). ADVANTAGE - Simple and space-saving mechanism for operating a folding step.
Patent DE-4219972-A1 (DE)
Inventor: SCHUMACHER WOLFGANG DR
IPC: A61K31/685
Filed: 1992-06-19
Abstract: Octadecyl 2-(N-methylpiperidino)ethyl phosphate, the use thereof in pharmaceutical compositions, in particular with an antineoplastic action, and process for the preparation thereof.
Patent DE-4220251-A1 (DE)
Title: Transparent element of plastic material, partic. spectacle lens - contg. photochromic dyestuff protected from diffused atmospheric oxygen@ by plasma polymerised coating
Inventor: EFFER ERHARD
IPC: G02B1/111
Filed: 1992-06-22
Abstract: Element comprises plastics material (I) coloured with at least one photochromic dyestuff (II) on which is applied a coating which has at least one barrier layer limiting 02 diffusion and applied by plasma polymerisation of a monomer with addn. of a supplementary gas (III). Prepn. of the elements is effected by coating (I) in a HF field in a receptacle in which selected partial pressure of monomer and (III) is maintained. Pref. (III) is 02. Monomer is Si cpd. partic. silane, siloxane, or silazane esp. dimethyldiethoxy- (IV), tetraethoxy- or tetramethoxy-silane or hexamethyldisolaxane. Barrier layer is of polysiloxane. Barrier layer is at lest 0.05 micron thick. Adhesion layer is applied to surface of (I), partic. also formed by plasma polymerisation. USE/ADVANTAGE - Used partic. for spectacle lenses. Barrier layer is readily applied, life of photochromic effect is extended through protecting (II) together with slowing of rate of lightening and improved temp. dependency partic. when (II) are spiro-oxazines of spiropyrans. Coated surfaces have increased mechanical and chemical resistance, redn. in gas permeability and alteration in surface characteristics e.g. surface tension, resistance to friction et
Patent DE-4221914-A1 (DE)
Inventor: HOEFFKES HORST DR
IPC: A61K8/72
Filed: 1992-07-03
Abstract: Described are cosmetic hair preparations containing an amphoteric polymer plus special esters of monocarboxylic fatty acids. The preparations give the hair good wet-combing characteristics, at the same time improving dry-combability, thus not only facilitating dressing of the hair when wet but also giving improved hold when dry. In addition, the preparations proposed improves the curl retention and bounce of waved hair.
Patent DE-4225266-A1 (DE)
Title: Insert for wooden coffin - is made in two parts which are fastened together with sealed joint
Inventor: KRAPF ALFONS
IPC: A61G17/04
Filed: 1992-07-31
Abstract: An insert for a wooden coffin consists of a lower part (1) and an upper part (2) which are made from a plastic which decomposes naturally in time. The two parts of the insert fit together and a C section sealing strip fits over the edges of the abutting flanges of the two parts so that together they from an airtight chamber. The lower part of the insert has a raised floor with openings which communicate with small compartments under the floor. The insert is intended for use in mortuaries, which are not provided with cooling systems, and thus improves the standard of hygiene in such mortuaries. USE/ADVANTAGE - Insert for a wooden coffin. The risk of the spread of disease is reduced. D11
Patent DE-4225382-A1 (DE)
Title: Producing boundary surface of III-V semiconductor material at 45 deg. w.r.t. grating plane - epitaxially growing semiconductor material in grating plane of crystal orientation and using mask to align at 45 deg.
Inventor: HEINEN JOCHEN DR
IPC: H01L21/20
Filed: 1992-07-31
Abstract: The method exploits the crystal orientation in III-V materials, and involves growing the semiconductor material on a crystal which is aligned with one of the grating planes (110, 101, 110 or 111), parallel to the boundary surface to be produced. The semiconductor material is epitaxially grown on the grating plane using a mask. The crystal may be a substrate or semiconductor layer. USE/ADVANTAGE - For producing optical reflecting surface. Highly planar surface with low angle tolerance can be produced.
Patent DE-4228252-A1 (DE)
Title: Device for connecting adult bicycle to one for children - uses connecting bar on saddle support of bigger bicycle releasably coupled to smaller one which runs on rear wheel only
Inventor: REIS JOSEF
IPC: B62K27/12
Filed: 1992-08-25
Abstract: The bicycles are connected by a bar (1) on the saddle support of the adult bicycle and is fixed by a releasable coupling, which permits a rotation only around the cross and high axes, but not around the longitudinal axis. The bar is dimensioned and shaped, so that the small bicycle runs on the rear wheel with a raised front wheel behind the adult cycle. The stabilising tube (2) has a hole strip (3) for the variable fixture (a) on the front wheel axle of the child bicycle. The bar is fixed by coupling to the frame tube of the adult bicycle. ADVANTAGE - Allowing the child to contribute actively to the pedalling activity.
Patent DE-4233169-A1 (DE)
Title: Method of dismantling of equipment contg. asbestos - involves draining off liquid surrounding appts. and dismantling appts. in same location into its individual components which are further treated with binder for residual fibre and stored by type, collected and disposed of
Inventor: SCHNOOR OLAF
IPC: B09B5/00
Filed: 1992-10-02
Abstract: Equipment to be disposed of is lifted into an empty flooding/dismantling basin (3), which is then hermetically closed by a cover (5), prior to flooding with clean water via a line (12), and simultaneously the basin is evacuated by a vacuum pump and filter unit (15,16,K1). When saturated the water is pumped into a second basin (4).The water can be reused or discharged to drain after filtration through a filter (14). The equipment is then dismantled within the basin (3,4), and the individual components transferred to the final thorough-cleaning bath where they are washed with a solution contg. a binder material for immobilising any residual fibre. ADVANTAGE - Compact, cost-effective installation.