baber/WOPTO huggingface dataset:
Patent DE-4138037-A1 (DE)
Title: Magnetic tape cassette recycling system using tape replacement - separates old tape from guide bands at either end after removal from cassette and attaches new tape to bands before insertion
Inventor: ENDERS GUENTER
IPC: B09B5/00
Filed: 1991-11-19
Abstract: The recycling system allows a worn tape contained in the tape cassette to be fully removed and replaced by a new tape. The magnetic tape is attached to a guide band at each of its ends. The old tape is removed from the cassette and separated at its ends from the guide bands. The new tape is attached to the separated ends of the guide bands before being loaded in the cassette. Pref. the old tape is separated from the guide band at one end and the new tape attached to this guide band, before the old tape is separated from the guide band at the other end. ADVANTAGE - Allows relatively expensive video or audio tape cassette to be re-used.
Patent DE-4138143-A1 (DE)
Inventor: RYBCZYNSKI WOLFGANG DIPL CHEM
IPC: B01J23/89
Filed: 1991-11-20
Abstract: Described is the preparation of 1-amino-2,6-dimethylpiperidine by the catalytic hydrogenation of 1-nitroso-2,6-dimethylpiperidine using a palladium catalyst partly poisoned with iron ions, the hydrogenation being carried out in an aqueous solvent in the presence of a surface-active agent or mixture of surface-active agents.
Patent DE-4139746-A1 (DE)
Title: Hydraulic damper with variable reaction force - has two valve elements per valve operating in sequence with increasing fluid flow rates.
IPC: F16F9/348
Filed: 1991-12-03
Abstract: The damping piston has one set of valves operating in compression and one set operating in extension of the damper. Each valve has two spring valve elements. One is used for small flow rates and a second (12) which comes into operation at larger flow rates, and hardens the damping characteristic. The second valve element (12) has flow holes (14) which are partially, or totally covered by the first element (14). The first element lifts first to operate at lower flow rates. The number-and size of the valves determines the characteristics of the damping. USE/ADVANTAGE - Hydraulic damper with progressive damping characteristic, simple construction, versatile design.
Patent DE-4139961-A1 (DE)
IPC: B27N3/06
Filed: 1991-12-04
Abstract: An aqueous resin solution for the impregnation of paper webs contains 2-40 parts by weight of a polyurea composed of urea and of a polyamine per 100 parts by weight of a melamine/formaldehyde precondensate. The impregnated paper webs are suitable for coating woodbase materials, especially chipboard.
Patent DE-4142124-A1 (DE)
Title: Friction clutch for vehicle drive-train - has housing mounted directly to flywheel and return pressure plate held near to flywheel
Inventor: DOLL PETER
IPC: F16F15/131
Filed: 1991-12-18
Abstract: The friction clutch is arranged in a vehicle drive-train between the flywheel and the gearbox. It is designed so that the clutch housing (23) is mounted directly with the flywheel (5) and operates with low pedal pressure and high gripping force on the plates. The reverse pressure plate (7) is held near to the flywheel when the clutch is engaged (1), via the main clutch spring (13) switching between the pressure plate (24) and the clutch disc (14). USE/ADVANTAGE - Improved operation of vehicle clutch particularly greater grip and lower pedal force.
Patent DE-4143127-A1 (DE)
Title: Fuselage nose for model aeroplane with engine - has shaft, propeller holder and propeller, and rotary cap, air inlet, fan with ridges.
Inventor: HOYER HANS-W DIPL ING
IPC: A63H27/18
Filed: 1991-12-28
Abstract: The fuselage nose for a model aeroplane containing an engine (4) has a shaft (5) protruding out of the nose, and a propeller-holder (6) with propeller (7). A cap (10) which rotates with the engine-shaft is positioned in front of the propeller and tapers forwards. The cap has coaxial air-inlet (14) at the front end surface. Between the air-inlet and the engine is a fan (15) driven by the engine. The fan has radially inward-pointing ridges (16) on the inner surface of the cap (10). In front of the engine is a fuselage transverse frame (2) with air inlets. The propeller holder has an outward-pointing flange (9). Each ridge fits through a slot (17) and has a parallel sprung tongue (18) with protuberance (19). USE/ADVANTAGE - The fuselage nose allows the engine to cool without impairing the gliding properties of the model aeroplane.
Patent DE-4200667-A1 (DE)
Title: Read-write buffer with integrated test circuitry - compares register contents of two feedback shift registers after writing of data to specific address, and after reading of buffer
Inventor: BEHRENS MICHAEL DR ING
IPC: G06F11/277
Filed: 1992-01-14
Abstract: The test circuitry for the synchronising buffer (20) consists of a shift register with feedback (17) to which buffer input data are sent. A similar shift register (19) is connected to the output of the buffer. The register outputs are input to a comparison circuit (20). Buffer input data is supplied by multiplexer (3) which has input data from (5) or test circuit (7). Other circuit elements are address generators (11,14). The system operates by comparing input and output data written to all buffer addresses, and provides a simple check on data integrity without the use of parity checks or otherwise. USE/ADVANTAGE - E.g. for shift register or FIFO with dual port RAM. Simple functional test for detecting defective components.
Patent DE-4204013-A1 (DE)
Title: Reflection scanner e.g. for object position sensing - has photosensitive elements connected in pairs in antiparallel, and arranged so that one element of one pair lies between two elements of other pair
Inventor: KASRAVI KAMBIZ
IPC: G01S7/4912
Filed: 1992-02-12
Abstract: The reflection scanner is equipped on the receiver side with at least four photo sensitive elements (13-16). The elements are connected in anti-parallel pairs, and are assigned spatially to each other so that between two elements (13,15 or 14,16) forming a receiving channel (26,27), one element (15,15) of another pair is arranged. The output signals of the two receiving channels (26,27), after current-voltage conversion are supplied respectively to frequency selective amplifiers (30,31). The gains of the amplifiers are adjusted steplessly by means of control voltages (USA,USB) applied at the control leads (37,38). ADVANTAGE - Scanning range of light scanners is enlarged. Operating reliability is increased and mounting simplified.
Patent DE-4205312-A1 (DE)
Inventor: BEISSWANGER RUDOLF
IPC: D21H23/34
Filed: 1992-02-21
Abstract: The invention relates to a roller assembly for applying a coating compound to a paper web, having the following features:  An applicator roller which rotates in a coating compound sump;  a trough; a counter-roller which rotates in the direction opposite to that of the applicator roll and, with the latter, forms an inlet gusset and an outlet gusset; the trough has a coating compound feed, a guide wall with a first overflow edge and an overflow channel for a first overflow stream; a guide body is provided which, at its downstream end, has a second overflow edge for a second overflow stream. The invention is characterised by the following features: the guide body has a discharge channel for discharging the second overflow stream;  the guide body forms a restriction point with the paper web; the discharge channel is provided with a valve.
Patent DE-4206813-A1 (DE)
Title: Inductive component arrangement - is sheathed in cast or moulded magnetic powder mixt which is finished at level of one surface of coil former so as to enclose coil completely on all sides
Inventor: MEINDL GERHARD
IPC: H01F27/29
Filed: 1992-03-04
Abstract: The coil (3) is wound on a former (2) and encased in a sheath (1) of magnetic material which fits closely around the coil former and is finished flush with one of its surfaces. Connection pins (4) are brought out from the ends (5) of the winding. The starting material for the magnetic sheath may be a mixt. of presintered ferrite or carbonyl iron and a plastic powder. The pins may be matched conventionally to e.g. surface mount or plug-through applications. ADVANTAGE -Mfg. cost is reduced by simplified combination of the coil former and surrounding magnetic material.
Patent DE-4209771-A1 (DE)
Title: Single-track roller skate shoe with chassis and bearing brackets - has three rollers in two groups positioned at heel, and ball of foot, with rotary axles
Inventor: HARDTER PAUL
IPC: A63C17/22
Filed: 1992-03-26
Abstract: The single-track roller skate (1) shoe (2) has a chassis (4,7) with bearing brackets (10) for mounting at least three rollers (5,6,8) one behind the other in two groups. The back group is positioned near the heel and has at least one roller (8). The front group is positioned near the ball of the foot and has at least two rollers (5,6). The front (5) and next (6) roller of the front group are positioned so that one side of the rollers facing the shoe and parallel to the rollers rotary axles (12) touch no other roller (8). The front roller of the front group has a free wheel unit. USE/ADVANTAGE - The roller skate shoe can be easily pushed in a forward direction and can travel backwards.
Patent DE-4218976-A1 (DE)
Title: New alkoxy, alkenoxy ethoxy and poly:ethoxy benzene cpds. for cells - useful in liq. crystal medium, esp. in dielectric for electro=optical display with wide mesophase range and favourable optical anisotropy and low temp. properties e.g. solubility
Inventor: RUEGER JOACHIM DR
IPC: C09K19/30
Filed: 1992-06-10
Abstract: New 4-substd.-1-alk(en)oxy (poly)ethoxy benzene derivs. are of formula (I): R1 = H, 1-15C alk(en)yl, opt. with one CN or CF3 substit. or halogen substit(s)., in which -CH2- gp(s). may be replaced by -O-, -S-, 1,3-cyclo butylene, -CO-, -CO-O-, -O-CO- or -O-CO-O- and O-atoms are not attached to one another directly; R2 = 1-15C alk(en)yl, opt. with halogen substit(s).; A1-2 = (a) trans-1,4-cyclohexylene (Cyc), in which non-adjacent -CH2- gp(s). may be replaced by -O- and/or -S-; (b) 1,4-phenylene (Phe), in which one or two CH gps. may be replaced by N; or (c) 1,4-cyclohexenylene, 1,4-bicyclo(2,2,2) -octylene, piperidin-1,4-diyl, naphth-2,6-diyl, decahydro naphth-2,6-diyl or 1,2,3,4-tetrahydro naphth-2,6-diyl; gps. (a) and (b) may be substd. by CN or F; Z1-3 = -CO-O-, -O-CO-, -CH2O-, -OCH2-, -CH2CH2-, -CH=CH-, -C=C- or a single bond; and one of Z1-3 may also be -(CH2)4- or -CH=CH-CH2CH2-; L1-4 = H or F, and L1-4(s) = F; m = 0, 1 or 2; n = 0 or 1; and r = 1-7. (I) may be prepd. by standard prepn., e.g. as in Houben-Weyl, Methoden der Organischen Chemie, Georg-Thieme-Verlag, Stuttgart, vol. IX, p. 867 ff. Examples are given in the text (below). Specifically n = 0, Z3 = a single bond, L3 = F and (A1-Z1)m-A2-Z2- = -Cyc-, -Phe-, -Cyc-Z1-Cyc-, -Cyc-Z1-Phe-; or n = 0, Z3 = a single bond and (A1-Z2)m-A2Z2- = -Cyc-Z1-(2F,3F-Phe)- with (2F,3F-Phe) = 2,3-difluoro-1,4-phenylene. USE/ADVANTAGE - (I) are used in liq. crystal (LC) media, which are used in LCDs and as dielectric in electrooptical displays (claimed). They are esp. useful in twisted, esp. TN and STN cells and may also be used in displays based on the guest-host, deformation aligned phase or dynamic scattering effect. (I) are stable LC or mesogenic cpds. and combine relatively low viscosity with relatively high dielectric anisotropy and high nematogenicity. The LC media have a wide mesophase range, favourable optical and dielectric anisotropy and improved low temp. properties, e.g. solubility in the usual LC materials, whilst the formation of smectic phases is suppressed.
Patent DE-4226339-A1 (DE)
Title: Appts. for radiation treatment of rolling plate of continuous press used for manufacture of pressed mats - with radiation treatment head carried by crossbar moving in longitudinal direction above plate working surface
IPC: B23K26/10
Filed: 1992-08-08
Abstract: An appts. for radiation treatment of the working surfaces of rolling plates of continuous presses incorporates (a) a heavy load support (3) for the rolling plate (1); b) a cross bar (4) which extends across the width of the plate (1) and moves back and forth in the longitudinal direction of the plate; c) at least one radiation treatment head (5) movable back and forth along the cross bar (4). The cross bar is guided directly or indirectly along the rolling plate. The radiation treatment head and/or the cross bar are vertically adjustable. The support (3) is a table for receiving the plate (1) in a radiation treatment station. A portal frame (6) carrying the cross bar (4) in the form of a cantilever runs along the table. The portal frame is fixed, while the table is adjustable relative to it, or the table is fixed and the portal frame is adjustable. As a further alternative, the cross bar (4) takes the form of a beam supported in guideways running on each side of the table (3).
Patent DE-4235540-A1 (DE)
Title: Simple and domestic sewage clarification system - contains clarification and oxidn. shafts in single tank and feed and discharge pipes
Inventor: WEISE CHRISTIAN
IPC: C02F1/00
Filed: 1992-10-21
Abstract: The system comprises feed and discharge pipes and a shaft-type tank. It forms an accumulation and oxidn. system, the initial- clarification, oxidn., and final-clarification shafts being combined in a single tank. The sewage can be aerated and circulated by a propeller on a vertical driving shaft or by blowing compressed-air into it, or by a pump-operated injector. A pump can also be used to extract the clarified water and deliver to the discharge pipe. Operation of the system can be controlled by an automatic level-regulator. The inlet can be combined with an immersion wall extending nearly to the tank bottom. ADVANTAGE - Simple, low cost and requires little excavation or maintenance.
Patent DE-4244450-A1 (DE)
Title: Capacitive pressure sensor - contains electrodes mounted on electrically insulating substrates one of which has recess for housing the electrodes
Inventor: KIMURA SHIGEO
IPC: G01L9/12
Filed: 1992-12-23
Abstract: The sensor contains two electrically insulating substrates (11,14) of quartz glass or sapphire directly connected together and one having a central recess (12) between them. A first electrode (13) is attached to the surface of the first substrate opposite the second substrate so that it moves with the first substrate. A second electrode (15) is mounted on the surface of the second substrate opposite and parallel to the first electrode. USE/ADVANTAGE - For capacitive detection of pressure changes. The design eliminates the effects of parasitic capacitances.Avoids stress caused by making substrates of materials having different heat expansion coefficients.
Patent DE-4301035-A1 (DE)
Title: Sensor cable for detection of leaks in pipeline
IPC: G01M3/16
Filed: 1993-01-16
Abstract: The sensor cable contains two sensor conductors (2,3) forming a moisture detector which extends along the pipeline. The sensor conductors are mounted at different points on the surface of a central cylindrical core (1).The conductors can be mounted diametrically opposite each other on the core. Cylindrical distance pieces (4) arranged between the sensor conductors and in the peripheral direction around the core are of larger dia. than the sensor conductors. The distance pieces can be insulated electrical conductors.
Patent DE-4307389-A1 (DE)
Title: Appliance for distributing plant-protection preparations in a field
Inventor: ROBRA JOERG
IPC: B05B7/24
Filed: 1993-03-10
Abstract: What is described is an appliance for distributing plant-protection preparations in a field, which has distributing-nozzle devices (30), supply containers (48) connected to these for various plant-protection preparations and a supply tank (10) for a carrier liquid for establishing a desired preparation mixture. The supply tank (10) is connected to the distributing-nozzle devices (30) by means of a first string of conduits (32). The supply containers (48) of the plant-protection preparations are connected to the distributing-nozzle devices (30) by means of a second string of conduits (34), the first and second strings of conduits (32, 34) being connected in parallel in flow-medium terms. <IMAGE>
Patent DE-4309374-A1 (DE)
Title: Cover for airbag unit - comprises urethane surface layer and core of thermoplastic urethane] elastomer
Inventor: SHIRAKI KOUJI
IPC: B60R21/2165
Filed: 1993-03-23
Abstract: The core (19) has a bending module in the range of approximately 1000 to 2500 kgf/cm2 and a surface layer (17) at least partly encloses the core and is formed from a soft urethane which has a hardness which is less than that of the core thermoplastic urethane elastomer. The cover (14) has a bending module of approximately 1500 to 2000 kgf/cm2. The core thermoplastic urethane elastomer is selected from the group contg. thermoplastic caprolactam urethane elastomer, thermoplastic adipat-urethane-elastomer, thermoplastic polycarbonate urethane elastomer and thermoplastic polyether urethane elastomer, which are classified according to the used long-chained polyol. The surface layer (17) is formed by reactive injection moulding of the soft urethane with a hardness in the range of approximately 60 to 90, measured in accordance with Shore-A of the ASTM. ADVANTAGE - Overcomes the problem experienced with the use of hard artificial resin as core for an airbag cover.
Patent DE-4310389-A1 (DE)
Title: Disc-type pivoting plough with universal shares for working the ground
Inventor: MADER GEORG
IPC: A01B15/14
Filed: 1993-03-30
Abstract: In order to reduce a multiplicity of share and body shapes and preliminary implements for the different areas of use in the working of the ground, a ploughshare shape and a plough body and their arrangement, each performing several tasks independently, are provided. This is achieved by means of the simple design, setting and operation in conjunction with the advantages of the two plough constructions of the one-way and the reversible plough. There is the possibility of travelling next to the furrow during ploughing and, in addition to the weight-saving, also of mounting tyres on the tractor which treat the ground carefully, in order to promote activity in the soil.
Patent DE-4311737-A1 (DE)
Title: Method and device for continuous measurement of sedimentation or flotation rates
Inventor: KRAH ROBERT
IPC: G01N15/04
Filed: 1993-04-08
Abstract: Method and device for continuous measurement of sedimentation or flotation rates, consisting of a settling vessel, a piston which is connected to a drive device and an arrangement of light barriers, so that the sample to be examined can be supplied, measured by means of the light barriers and then discharged by moving the piston.
Patent DE-4311875-A1 (DE)
Title: Method for the production of hollow shafts with a profile
Inventor: AMBORN PETER DR
IPC: B21D26/02
Filed: 1993-04-10
Abstract: Method for the production of a hollow shaft with end portions and a central portion which is enlarged radially relative to the latter in relation to the axis of the shaft from a tube of constant diameter. For this purpose, the tube is placed in a die which has a cavity with an internal longitudinal profile having retaining regions for the end portions and with an expansion region, situated between the retaining regions, for the central portion of the hollow shaft. The tube is then subjected internally to hydraulic pressure at least in the portion provided for the central portion of the hollow shaft until the outer surface of the tube comes to rest against the inner surface of the cavity of the die. For the purpose of expansion, the tube is subjected to hydraulic pressure in the die, at least over the length of the central portion to be expanded, and the tube portions intended for the end portions of the shaft are reduced mechanically outside the die relative to their original cross-section. <IMAGE>
Patent DE-4317427-A1 (DE)
Title: Stabilising link chain
Inventor: SOMMERFELD SIEGFRIED
IPC: F16G13/18
Filed: 1993-05-26
Abstract: In the case of a simple and sturdy link chain which comprises chain links which are connected to one another in an articulated manner, exhibit mutually overlapping inner and outer plates, can be locked to form a rigid link bar and having a locking means in their sleeves arranged between the inner plates, the locking means can be displaced in the chain running direction relative to the inner plates from a locking position into a release position.
Patent DE-4317905-A1 (DE)
Title: Durable reactor for high temp. hydrogeneration of chloro-silane cpds. - consists of carbon@ fibre composite coated with silicon carbide, pref. with heating element of same material insulated with silicon nitride
Inventor: BURGIE RICHARD ANTHONY
IPC: C01B33/107
Filed: 1993-05-28
Abstract: Reactor for bringing chlorosilanes and H2 gases into contact at temps. above 600 deg.C has a chamber of SiC-coated C fibre composite material (I). The reaction chamber contains a heating element, also made from (I), pref. with electrical insulation of Si3N4, esp. hot pressed Si3N4. Pref. (I) has a 0.02-0.13 mm thick SiC coating and a matrix of C and C fibres with a density of 1.5-2.0 g/cc, Young's modulus of elasticity of 200-600 GN/m2 and tensile strength of 1500-8000 N/mm2. The C fibre content is 50-70 vol.%. USE/ADVANTAGE - The reactor is useful in the hydrogenation of SiCl4, SiHCl3, SiH2Cl2 and SiH3Cl. (I) has high strength, good elastic properties and great resistance to damage by pressure and thermal stress. The expansion coefft. of the matrix can be matched to that of the SiC coating. The coating protects the matrix from redn., which could destroy the appts. and contaminate the hydrogenated chlorosilanes. In an example, tests were carried out on samples of (A) pressed Si3N4 (`Cl32/HP'; RTM), (B) reaction sintered Si3Nr (`NCX5301'; RTM), (C) quartz, (D) SiC-coated C fibre composite (`CF222P22'; 55-65 vol.% C fibre; bulk density 1.6-1.7 g/cc), (E) uncoated C fibre composite (`CF212'; RTM), (F) another uncoated C fibre composite (`CX21'; RTM), the samples being dried for 72 h under N2. These were exposed to a stream of 464 cc/min mixt. of 25 mole-% SiCl4 and 75 mole-% H2 (1) for 6 h at 1150 deg.C + 15 h at 1350 deg.C or (2) at (A-C) 800 deg.C or (D-F) 1200 deg.C, with test after 462, 905 and 1367 h. In test (1), the loss in mass was (A) 0.131, (B) 0.185, (C) 6.113, (D) O, (E) +3.140, (F) +6.281%, the increase in mass of (E, F) being caused by reaction with SiCl4 to form SiC; and the gas leaving the reactor contained (A) 26, (B) 27, (C) 9, (D) 42, (E) 252, (F) 104 ppmv CH4 and (A) 12, (B) 2, (C) 125, (D) 29, (E) 5, (F) 8 ppmv CO. In test (2), the loss in mass was (A) 0.03, (B) 0.10, (C) 0.13, (D) 0.01, (E) 0.80% after 462 h; (A) 0.00, (B) 0.02, (C) 0.03, (D) -0.58, (E) -9.75% after 905 h; and (A) 0.03, (B) 0.10, (C) 0.16, (D) -0.45, (E) -9.05% after 1367 h.
Patent DE-4321768-A1 (DE)
Title: Industrial truck
Inventor: ABELS THEODOR DIPL ING
IPC: B62D25/10
Filed: 1993-06-30
Abstract: An electrically driven industrial truck, especially a counterweight fork lift truck, has a traction battery (4) and a generator (6) driven by an internal combustion engine (5). The traction battery (4) and the internal combustion engine (5) are arranged in a space (1), open at the top, which can be closed by a flap (2). In order to manufacture such a vehicle at a low cost, the traction battery (4), the internal combustion engine (5) and the generator (6) are fixed on a common base plate (3). The mass of the base plate (3) is essentially equal to the difference between the mass of a traction battery completely filling the space and the aggregate mass of the components arranged on the baseplate (3). The components arranged on the baseplate (3) are preferably encapsulated by an acoustic hood (7). <IMAGE>