baber/WOPTO huggingface dataset:
Patent DE-2925582-A1 (DE)
Inventor: NEUBERG RAINER DIPL CHEM DR
IPC: C08G63/181
Filed: 1979-06-25
Abstract: Thermoplastic segmented elastomeric copolyether-esters which substantially consist of a plurality of recurring short-chain and long-chain ester units linked to one another by ester bonds, the proportion of the short-chain ester units of the formula    <IMAGE> I  where R is the divalent radical remaining after removal of the carboxyl groups of aromatic dicarboxylic acids having a molecular weight of <350 and A is the divalent radical remaining after removal of the hydroxyl groups of a diol having a molecular weight of <250, being from 15 to 75% by weight, and the proportion of the long-chain ester units of the formula    <IMAGE> II  where R is defined as above and B is the divalent radical remaining after removal of the terminal hydroxyl groups from a long-chain glycol, being from 25 to 85% by weight of the copolyester, and which contain from 0.01 to 5 mole %, based on copolyester, of trifunctional or more highly functional compounds, serving as branching agents, chemically incorporated into the polymer molecule. The copolyesters are particularly suitable for use in pressure-sensitive adhesives.
Patent DE-2932358-A1 (DE)
Title: Telephone exchange crosspoint switching marker - uses relay and transistor to mark crosspoints and prevent double switching
Inventor: BERNARD KLAUS
IPC: H01H63/40
Filed: 1979-08-09
Abstract: The control circuit is for busy and marker circuitry for crosspoint switching in a telephone exchange. The system uses decoupling rectifiers and switching transistors as auxiliaries to the crosspoint relay. The system reduces power requirements to a third. Each crosspoint has a marker relay at the inlet/outlet. When one relay is operated by the earth on an outlet and battery on the inlet, all other crosspoints are then barred by switching on the auxiliary transistors in the other crosspoint circuits due to the current flow through the decoupling rectifiers providing the bias conditions to emitter, base and collector circuit resistors.
Patent DE-2934730-A1 (DE)
Title: Four-wheel steering mechanism - has intermediate linkage coupled both to front wheel steering wheel and to rear wheel steering linkage
Inventor: ARITA MAKOTO
IPC: B62D7/14
Filed: 1979-08-28
Abstract: The steering is operated by sterring wheel (24) via steering column and steering worm gear assembly (70). The worm gear axle (22) carries arms (18) and (44) keyed onto its opposite ends. The arm (18) controlling the geometry of the front wheels (14) connects via a link arm (20) to a rack (16) with its ends jointed to swing arms (12) fitted to the wheels. The other arm (44) carries on its free end a push-rod (46) connected with its other end to a lever arm (50) moving on a pivot (52). And other end of the lever arm is connected to a push-rod (48) whose other end operates a toggle lever (38). The free end of the toggle lever is connected to a rack (36) by link (40). The rack controls the rear wheels moving them in opposite direction to that of the front wheels.
Patent DE-2944523-A1 (DE)
Title: Welding metal parts with insulating coatings - by electric field distribution and perforated interlayer producing metallic fusion
Inventor: BECKER OTTO ALFRED DR
IPC: B23K11/16
Filed: 1979-11-03
Abstract: Metal parts with an insulating coating are welded together by introducing electric energy in them from any point such as the outside edges and by applying a welding pressure when the electrical resistance of the desired welds has dropped below that of the surroundings. An electric field is given a configuration such that its greater density destroys the insulation at the proposed weld, thereby enabling the welding current to fuse both parts together. This saves the necessity for a prior removal of the insulation and for baring the coated metal parts.
Patent DE-2944670-A1 (DE)
Title: High pressure fluid control valve - has ring seal fitted on piston periphery with throttle needle behind
Inventor: MAASS ALBRECHT
IPC: F16K3/24
Filed: 1979-11-06
Abstract: The high pressure cut-off valve for fluids has a housing in which there is a flow channel with angularly positioned inlet and outlet holes which are aligned with a guide hole for a valve piston. An axially movable valve piston is provided, together with a ring seal for both piston and flow channel. The piston (9) works in conjunction with the outlet hole (6), and the ring seal (12) is fitted on the periphery of the piston. The seal can be drawn into the guide hole (22) from the flow channel (7). Behind the seal, the piston has a throttle needle (13) extending away from its free end, virtually closing the outlet hole, and corresponding to the path length of the ring seal (12).
Patent DE-2948392-A1 (DE)
Title: Flexible hydraulic cylinder with reciprocating piston - has piston outside dia. is greater than cylinder inside dia. with pressure medium branch on one side
Inventor: PEUKER KARL ING GRAD
IPC: F15B15/08
Filed: 1979-12-01
Abstract: The hydraulic cylinder is in the form of a flexible hose containing a reciprocating piston, fixed to a piston rod. On one side, the piston is acted upon by a pressure medium which is fed from outside through the piston rod. The outside diameter of the piston (2) is greater than the inside diameter of the cylinder (1), and on the side, away from the piston rod, the cylinder has a further connecting branch for the pressure medium. Preferably the piston is fitted with a flexible seal (12) and a piston guide (13) of diameter greater than that of the cylinder.
Patent DE-3004179-A1 (DE)
Title: High-speed printer using several heads for parallel printing - has carriage oscillated by belt drive with energy storage using compensation mass
Inventor: HEINZL JOACHIM PROF DR
IPC: B41J3/54
Filed: 1980-02-05
Abstract: The printer has printing heads (1) spaced along the length of a printing line and mounted on a common carriage (2). The carriage is oscillated via a belt-drive (4,5,6) and a pivot linkage (9,10). A second belt (11) is mechanically coupled to the carriage (2) using the carriage movement to provide for its rotation. A compensation mass (14) is coupled to the second belt (11) and moves in opposite phase to the carriage (14), with a mechanical energy store (15) at either side of the carriage (2) acting between this and the compensation mass (14). Each rotation of the two drive-belt wheels (5,6) causes forward or reverse rotation of the carriage (2) over a path length corresp. to the length (T2) of each printing line covered by each head (1) plus twice the distance (U) required for the motion reversal.
Patent DE-3007510-A1 (DE)
Title: High density digital recording disc - has two recording zones with different recording densities for replay on normal audio reproducing equipment
Inventor: WIEDENROTH BERND
IPC: G11B3/72
Filed: 1980-02-28
Abstract: To enable the public to play standard technique record disks as well as high density digital recording on the same reproducing equipment at a price only marginally higher than that of a normal recording, a new disk is proposed consisting of an outer ring (6) used for slow, conventional replay and an inner ring zone (7) used for fast turning replay of high density digital recordings. A thickened portion (5,15) gives stability to each zone independent from the other, and it is possible to tear the two apart for independent utilisation because of the thin linkage (4) provided. The more sensitive inner recording zone (7) is covered by a paper lid (13) and dummy insert (7). After these are removed the digital disk is stored in a separate protective carrier case. After separating the outer disc it can be replayed when combined with a special centre piece of metal which is also provided with the set of equipment.
Patent DE-3007853-A1 (DE)
Inventor: ROHRWEG ALEXANDER ING
IPC: H02K3/16
Filed: 1980-02-29
Abstract: The object of the invention is to create this device for axially securing damper bars (2) in such a manner that it can be used for turbogenerators of both a horizontal and a vertical type, is simple to produce and prevents hazards relating to damage from thermal expansion. According to the invention, this is achieved in that the damper bar (2) located under the rotor slot wedge (1) is provided with a circular recess on the surface facing the rotor slot wedge (1) and symmetrically with respect to its longitudinal axis, the diameter of which recess is somewhat larger than the width of the damper bar (2), the rotor body (3) furthermore having a recess at the same point whose centre coincides with the centre of the rotor slot. A disc (4) consisting of heat-resistant insulating material is inserted into this recess and is supported in terms of centrifugal forces by the rotor slot wedge (1). <IMAGE>
Patent DE-3009697-A1 (DE)
Inventor: KRASNOV BORIS ISAEVIC
IPC: B22D11/04
Filed: 1980-03-13
Abstract: The conicity of the mould (1) is adjusted according to the casting speed and the temperature of the liquid cast metal and additionally according to the force (4) drawing off the billet from the mould and/or according to the surface temperature of the billet produced at the exit of the mould. In the event of a deviation of the force (4) drawing off the billet from the mould and/or in the event of a deviation of the billet surface temperature prevailing at the exit of the mould, as actual values, from respective desired values, the conicity of the mould is varied in such a way as to restore this desired value. The method can be employed widely in foundries in the continuous casting of metals by the pressing of a molten mass. The structure of the billet is improved as a result of the method. <IMAGE>
Patent DE-3012807-A1 (DE)
Title: Writing pen holder with built-in roller device - has hollow body with slot opening permitting withdrawal of sheet of paper and other aids may be fitted inside hollow body
Inventor: ELZNER MANFRED
IPC: B05B11/00
Filed: 1980-04-02
Abstract: Writing pen holder with built in roller device. The hollow body of the pen holder consisting of a transparent or non-transparent material is fitted with a slot opening from which a sheet of paper may be withdrawn either by hand or a built in roller device. The sheet of paper may also be inserted using the same device. The roller device permits an automatic insertion of the sheet, and the hollow body may be equipped with an exchangeable writing lead or ink cartridge, or alternatively with a lighting device, eraser rubber, spray device, compass or other useful aids.
Patent DE-3016033-A1 (DE)
Title: Radar target simulator appts. - has stored simulation programmes with additional stores holding atmospheric data
Inventor: VOLLHARDT GUENTER DIPL ING
IPC: G09B9/54
Filed: 1980-04-25
Abstract: The radar target simulator uses stored calculated flight paths and interference models with the flight path data and interference model for each target or interference source held in a respective addressable register. Each of the latter is formed from interchangeable modules combined with one or more further stores used to enter the atmospheric conditions. The simulator has an input/output device for obtaining the base frequency, the pulse repetition frequency, the angular position information for the antenna layout etc from the radar appts. It allows simulation of three different target or interference sources imaged simultaneously according to respective control programmes. The register storing the data for each target or interference source pref. comprises a programmable memory.
Patent DE-3017586-A1 (DE)
Title: Screw-less connection for construction elements - has two hollow tubes with Z-shaped ends which mate and are held together with internal pin
Inventor: KRAUSE DIETER DIPL ING DR
IPC: H05K7/14
Filed: 1980-05-08
Abstract: The two components e.g. flat sheets (1,1') to be connected together, parallel and with a certain distance between them, each have a hollow tube (2,2') fixed in a recess in one of their surfaces by adhesive or welding. The upper ends of these tubes, i.e. the free ends, are so formed that they exhibit three planes in the vertical cross section, two planes being radial (E1,E2) and the centre plane (E3) being at a sharp angle to the other two. This forms a 'Z' shaped configuration in the ends of both tubes, which, when placed together, mate with each other and form a single spacing tube between the facing surfaces (4) of the two sheets (1,1'). To hold the two tubes firmly together, a pin (9), is inserted through the centre, and is at least longer than the mating surfaces formed by the two halves (6,7,8). Although forming a rigid connection, the two plates (1,1') are easily separated by removing the pin (9), which can be cylindrical, prismatic or of other cross-sections.
Patent DE-3023085-A1 (DE)
Title: Printed circuit card guide for use in rack assemblies - is made from single strip spanning rack with lines of projections acting as rails
Inventor: GANZERLI DANTE
IPC: H05K7/14
Filed: 1980-06-20
Abstract: The design simplifies both the mfr. and assembly of printed circuit card guides, especially in rack assemblies. The guides are formed from single strips of metal (13) into which lines of projections (13a) are formed using a press tool. The spaces between parallel lines of projections running along the rack from front to back form the guides into which the circuit cards are inserted. Between each pair of projections a hole (13e) may be punched in order to provide paths for the circulation of cooling air. Typically separate strips are used for top and bottom guides. They are fastened to the side members (10,11) of the rack. The guide strips are mfd. by metal pressing and folding methods.
Patent DE-3027420-A1 (DE)
Title: Paper, textile or plastics sheet treated by pressing rolls - assembled as several small rolls surrounded by several larger rolls
Inventor: HECKERS WILLY DIPL ING
IPC: B26D7/06
Filed: 1980-07-19
Abstract: An appts. for continuously treating sheets of paper, textiles or plastics consists of applying pressure, opt. in conjunction with temp. as the sheet passes through roll gaps. An assembly comprising four or more rolls of comparatively small dia., surrounded by four or more rolls of larger dia. is used; the outer, large rolls press against the inner ones and support them. The sheet passes around the rolls in such a manner that three roll gaps are formed at each of the smaller rolls in conjunction with other smaller and/or larger rolls. The ratio of the larger dia. to the smaller dia. is less than the square of 1/(2 power (1/2-1). Pref. the ratio of the dias. exceeds 3, more specifically exceeds 4. With this arrangement, rolls of considerably smaller dia. can be used than was previously possible and consequently the roll assembly is smaller than previous arrangements.
Patent DE-3030080-A1 (DE)
Inventor: RIEHL HORST DIPL ING
IPC: F21V11/02
Filed: 1980-08-08
Abstract: 1. An elongate work-light comprising at least one fluorescent lamp for anti-dazzle and high-contrast illumination of a work table, said light being arranged above half of the work table opposite the field of action in such a manner that its longitudinal axis is transverse with respect to the usual direction of view of a person sitting at the work table, and comprising a housing and a grid, in whose downwardly pointing light outlet window provided with transverse lamellae mutually parallel and transverse to the longitudinal axis of the work-light, characterised in that the transverse lamellae (201, 202; 201', 202', 203') are inclined against the horizontal in such manner that the horizontal projection (B) of each transverse lamella is greater by one overlap (y) than the horizontal distance (A) of two adjacent transverse lamellae.
Patent DE-3032548-A1 (DE)
Title: 4-Amino-2-mercapto-pyrimidine derivs. prodn. - by reaction of 3-alkoxy-acrylonitrile, 2-formyl-propionitrile acetal or 3-amino-acrylonitrile with thiourea
Inventor: PEETERS HERMANN DIPL CHEM DR
IPC: C07D239/46
Filed: 1980-08-29
Abstract: In a new process for the prodn. of 4-amino-2-mercapto- pyrimidine derivs. (I) a 3-alkoxy-acrylonitrile R"O-CH=C(R)CN (II), a 2-formyl-propionitrile acetal (R"O)2CH-CH(R)-CN (III) or a 3-amino acrylonitrile (R1)(R2)N-CH=C(R3)CN (IV) is reacted with thiourea (where R is H, opt. branched or cyclic 1-20C alkyl, or an opt. branched residue of the formula (CH2)n-CN, (CH2)n-COOR', (CH2)n-NH2, (CH2)n-OR' or (CH2)n-Cyc in which Cyc is a mono- or polycyclic isocyclic, heterocyclic or opt. substd. aromatic or heteroaromatic ring; R' is 1-12C alkyl or the residue of a monohydric phenol; n is 1-5 R" is 1-12C alkyl or alkenyl, an opt. substd. isocyclic, heterocyclic or mono- or polycyclic aromatic or cycloaliphatic ring system, a residue (CH2)m-Cyc, or a residue (CH2)m-OR"' or (CH2-CH2-O)p-R" in which m is 1-5 p is 1-4 and R"' is 1-12C alkyl; R1 and R2 are H, 1-12C alkyl, alkenyl or alkynyl, Cyc (CH2)n-Cyc or a gp. X-R4 in which X is unbranched, branched or cyclic 2-12C alkylene or alkenylene, -Cyc-, -(CH2)n-Cyc- or -(CH2)n-Cyc-(CH2)n- and R4 is -NR1-CH:CR3-CN, or NR1R2 is a 3- to 6-membered ring opt. contg. further hetero atoms; and R3 is undefined. The prods. are useful as additives in photographic materials, as fungicides and as possible chemotherapeutic agents.
Patent DE-3035986-A1 (DE)
Title: Test system for branch telephone exchange - uses simulated subscriber circuits and simulated exchange
Inventor: GRINGEL HERBERT
IPC: H04M3/32
Filed: 1980-09-22
Abstract: The test system uses simulated subscriber circuits and a simulated exchange circuit all connected to an analog multiplexer, which obtains signals and audio voltages appearing at the simulated exchange and subscriber circuits and as a program controlled sequence of samples over several periods. The signal samples are passed via an A-D converter to a processor that adds the now-digitised samples over a programmed interval and compares them with stored values for the corresponding signals.
Patent DE-3045532-A1 (DE)
Title: IC engine continuous fuel-air injector - has piston pump receiving mixture via duct tangential to pump chamber contg. leaf spring valve
Inventor: EMMENTHAL KLAUS-DIETER DR ING
IPC: F02M71/02
Filed: 1980-12-03
Abstract: The arrangement is intended for continuous injection of a fuel-air mixture in the intake of an i.c. engine. A mixing chamber (3), is connected to the narrowest section of a venturi upstream of the throttle. A fuel metering unit (5) supplies fuel to this chamber as a function of engine load. The compression chamber (8) of a downstream piston (9) pump connects to the mixing chamber via a duct (7) in a valve (10) mounting plate (2). This duct enters the compression chamber tangentially. The compression chamber may be provided with an annular recess (15) which contains an inlet valve in the form of a circular leaf spring (10).
Patent DE-3045732-A1 (DE)
Title: Mirror servo drive with manual override - includes sprung friction rollers on smooth guides
Inventor: LUNGU CORNELIU DIPL ING
IPC: B60Q1/06
Filed: 1980-12-04
Abstract: The servo drive for the external driving mirror has two motors, one for each adjusting axis. The motors drive friction rollers via reduction gears and each pair of rollers (36,38) grip a curved drive guide (48) which is curved about the adjusting axis. The friction drive allows manual control without damaging the gearing. At least one roller of each pair is driven, and the two rollers are held together to clamp the guide by a spring loop (60). The drive is simple and low cost. Low torque motors are used with no damger of damage.
Patent DE-3045958-A1 (DE)
Title: Crucible-less zone melting semiconductor rod dia. control - by upset or stretch action through one of three electrical quantities
Inventor: KELLER WOLFGANG DR RER NAT
IPC: C30B13/20
Filed: 1980-12-05
Abstract: In a crucible-less zone melting process, specially for the prodn. of monocrystalline semiconductor rods, three electrical quantities of the process are measured. They include the high-frequency voltage UL on the h.f. hearing coil, the anode voltage UA of the h.f. generator, and the anode current IA of it. One of these quantities is used as the controlled condition for the stretch-upset adjustment of the rod, a second is kept constant, and the third is allowed to float. This results in an improved control of the diameter fluctuation of even thick rods which is now kept to under 1%.
Patent DE-3102222-A1 (DE)
Title: Nozzle flap valve
Inventor: MITO AKIO
IPC: F15C3/14
Filed: 1981-01-22
Abstract: A nozzle flap valve having a nozzle, a fixed restrictor and a flap, is characterised in that the flap is of cylindrical construction and the cylindrical edge surface is arranged on the axis of the nozzle, so that the flap movement mechanism is simplified and the flap intermediate space is prevented from becoming blocked by dirt which is contained in the flow medium.
Patent DE-3102938-A1 (DE)
Title: Method and apparatus for inserting a weft thread into the shed of a weaving machine
Inventor: MOESSINGER ALBERT
IPC: D03D47/28
Filed: 1981-01-29
Abstract: The invention relates to a method and an apparatus for inserting a weft thread into the shed of a weaving machine without the use of a shuttle. According to the invention, the thread to be inserted is offered to two throwing rollers (6 and 7) which define a nip between them. A guide member (4) is arranged in front of the rollers (6, 7), and a fixing member (3) is arranged in such a way that the thread (1, 5) forms an acute angle with the nip of the rollers between the said members and, before the throw, is located outside the nip. For throwing, a device makes it possible to displace the thread between the rollers (6, 7) which in turn form a loop from the thread length (1) drawn off from a reserve (2). <IMAGE>
Patent DE-3105842-A1 (DE)
Title: Filter for underground mining for the dust extraction from full-thickness and selective-cut heading machines for applying preheated air in order to prevent the temperature falling below the dew point
Inventor: HOELTER HEINZ ING GRAD
IPC: E21C35/22
Filed: 1981-02-18
Abstract: In full-thickness and selective-cut heading machines in underground mining and tunnelling, a filter separator is used for collecting the dust arising during the cutting. The filter separator has a pre-agglomeration section with water spray-in, a spin generator which is arranged upstream of the drive motor of the fan and at the same time the heating body, a heating-up zone and several filters arranged one behind the other. The moist dust from the area of the spin generator and the downstream filters is conveyed away via a common dust-discharge worm. On account of the special design of the filter, the fine dust is reliably separated without the temperature being able to fall below the dew point.
Patent DE-3107857-A1 (DE)
Title: Method for fabricating thin-film circuits having conductor track layer systems of excellent solderability
Inventor: GREWAL VIRINDER DR ING
IPC: H05K3/38
Filed: 1981-03-02
Abstract: In comparison to the conductive-layer metals gold, silver, copper and palladium, nickel is dissolved least in the solder. Nickel oxidises in the air and upon temperature treatment becomes thicker on the surface. During the soldering operation, this nickel oxide layer prevents complete wetting of the nickel surface and thus a good soldered joint. According to the invention, a soldering layer consisting of nickel or a nickel alloy therefore has applied to it, in the same vacuum, either an aluminium, an aluminium-silicon, a copper layer or a copper/aluminium layer.