baber/WOPTO huggingface dataset:
Patent DE-2967475-D1 (DE)
Title: An oriented, semi-crystalline polymer product and method and apparatus for producing such product
Inventor: AUSTEN ALFRED R
IPC: B29C48/32
Filed: 1979-08-17
Granted: 1985-08-01
Abstract: A thick-walled, seamless, rigid non-porous conduit (Y) having a substantially uniform wall thikkness which is not less than about 0.5 percent of the outside diameter consisting essentially of an oriented crystalline thermoplastic polymer characterized by a structure comprised of radially compressed discrete, platelet-like spherulitic crystalline aggregates (A!) and having a combination of good ultimate tensile strength and low temperature tensile impact strength. The conduit is fabricated by solid state hydrostatic extrusion of a substantially non-oriented semi-crystalline thermoplastic polymer preform (X) which may contain up to about60 weight percent filler. The polymer is substantially simultaneously elongated in both circumferential and axial directions by compressive forces with the circumferential elongation being at least 100 percent. The apparatus used to produce the product is a hydrostatic extrusion press which includes an annular orifice in which the thermoplastic polymer is elongated substantially simultaneously circumferentially and axially with the circumferential elongation being at least 100 percent. Means for maintaining the rigidity of tooling and the hydrostatic extrusion fluid pressure while providing a film of the fluid on the preform for lubricity are provided in the apparatus. A sheet (F) substantially uniform in thickness and having substantially the microstructure and properties of the conduit and excellent drawability may be made from the conduit by slitting and heat deformation. Articles of manufacture may be made by solid state deformation processing of the conduit or the sheet, such as vacuum drawing.
Patent DE-3067851-D1 (DE)
Title: Device for balancing rotary bodies
Inventor: LEHMANN HEINZ
IPC: F16F15/32
Filed: 1980-08-29
Granted: 1984-06-20
Abstract: A device for balancing rotating bodies comprising two inertia masses, which are disposed in a cylindrical housing which can be connected to the body to be balanced such as a grinding disc, and which are mutually connected by means of a self-locking worm gear. The inertia masses may be displaced by means of one single switch shaft having four positions in which the two inertia masses can be displaced either countercurrently in both directions or concurrently. When braking is effected by means of a brake knob disposed on the switch shaft, displacement occurs until the indicated imbalance lies within the low, desirable range. The worm shaft and the worm wheel contained in the inertia masses are in engagement with the worm gear of the switch shaft and the housing. An arrangement of this type permits, on the one hand, a simple mechanical construction and operation, and, on the other hand, a large inertia mass, relative to the volume available, with a wide range of adjustment.
Patent DE-3069111-D1 (DE)
Title: A ribbon for non-impact printing
Inventor: SHATTUCK MEREDITH DAVID
IPC: B41M5/26
Filed: 1980-11-14
Granted: 1984-10-11
Abstract: The present invention is concerned with a ribbon for non-impact printing. The ribbon comprises a transfer coating and a substrate which is a polyester resin containing from about 15% to about 40% by weight of electrically conductive carbon black.
Patent DE-3160362-D1 (DE)
Title: Power operated scraper
Inventor: WETZEL LUDWIG
IPC: B23Q1/26
Filed: 1981-07-24
Granted: 1983-07-07
Abstract: A motor-driven scraping tool has an elongated supporting element and a receiving head arranged on its free end portion in an adjustable member, wherein an adjusting device is formed by one bendable tongue which forms a guiding face of the receiving head and an adjusting screw which bends the tongue relative to the supporting element, or more particularly relative to a counterguide.
Patent DE-3163985-D1 (DE)
Title: Composite springs
Inventor: DIMMOCK JOHN
IPC: F16F1/18
Filed: 1981-08-10
Granted: 1984-07-12
Abstract: An assembly of a fibre reinforced composite leaf spring with layers of longitudinally oriented fibres spaced from one another by a core portion of randomly oriented fibres, and a component such as an axle beam, the component being clamped to the spring and located length wise of the spring by a locating member which engages with a formation extending at least partially through the core portion of the spring but which does not interrupt the longitudinal fibres thereof. Interruption of the longitudinally oriented fibres is thus avoided.
Patent DE-3170444-D1 (DE)
Title: Hand-operated element for a pivoting and fixing device of the mixing drum of a free-fall tilting drum concrete mixer
Inventor: SUSEMIHL ROLF
IPC: G05G5/18
Filed: 1981-12-18
Granted: 1985-06-13
Abstract: 1. Manual control element for the swiveling and locking geat of the mixing drum of a free fall tilting drum concrete mixer with a mounting (2) for the non-rotatable reception of an accordingly adapted drum suspension pivot, at least one handle element (13, 13') mounted at a distance from the axis of rotation in a plane of rotation generally perpendicular to the axis of rotation of the drum, at least one pair of aligned holes (4) to receive a bolt extending through a corresponding transverse hole in the pivot for a positive connection between the pivot and the manual control element, admitting, however, a tilting movement, and with locking elements whereby the manual control element can be locked in different angle of rotation positions by means of locking gear stationnary relative to the machine, characterized in that said manual control element is manufactured of a one-piece stamped part of sheet material having a more or less discshaped midsection (1) provided with said mounting (2) in a central position thereof, from which midsection at both sides of the central mounting (2) respectively one laminar section forming the bearing side boards having aligned holes is stamped free and bent at a right angle with respect to the midsection (1) and that one or more handle elements (13, 13') extend in a substantially radial direction, relative to the axis of rotation, directly from the circumference (12) of the midsection (1).
Patent DE-3174177-D1 (DE)
Inventor: STANLEY LOUIS
IPC: H02K17/16
Filed: 1981-07-21
Granted: 1986-04-30
Abstract: A core (10) for an axial flux induction electric machine, the core (10) being formed of metal strip wound about a central axis (13) with the strip being punched to have a plurality of holes which are spaced longitudinally of the strip and aligned on the core (10) to form radially extending slots (11). The side surfaces (15) of each individual slot (11) diverge radially outwardly from the axis (13).
Patent DE-3174846-D1 (DE)
Title: Case with variable volume
Inventor: SCHAUB MICHAEL MISCHA
IPC: A45C/
Filed: 1981-11-12
Granted: 1986-07-24
Abstract: The novel case contains at least one rigid, obstacle-free basic frame element with a U-shaped profile and laterally fittable, interchangeable lateral elements. The latter can be in the form of e.g. plates, case shells or lateral covers provided with roller shutters. The case can be opened between the basic frame element and one of the lateral elements. The volume within the profile makes it possible to receive different additional elements. Examples of the latter are locking elements, carrying handles, name plates, identification elements, accessories, roller elements and carrying straps. The basic frame element can be in the form of a rectangle, square, polygon or circle.
Patent DE-3265889-D1 (DE)
Title: Electrodeposition of chromium and its alloys
Inventor: BARCLAY DONALD JOHN
IPC: C25D3/56
Filed: 1982-11-11
Granted: 1985-10-03
Abstract: A chromium electroplating electrolyte containing trivalent chromium ions, a complexant, a buffer agent and thiocyanate ions for promoting chromium deposition, the thiocyanate having a molar concentration lower than that of the chromium ions. The chromium preferably has a concentration lower than 0.01M. Preferably the complexant is selected so that the stability constant K1 of chromium complex is in the range 10<8> < K1 < 10<1><2> M<-><1>. Complexants in this range include aspartic acid, iminodiacetic acid, nitrilotriacetic acid and 5-sulphosalicylic acid.
Patent DE-3270750-D1 (DE)
Title: Process for the preparation of moulding compositions containing polyphenylene ether
Inventor: HINSELMANN KLAUS
IPC: C08L71/00
Filed: 1982-07-15
Granted: 1986-05-28
Abstract: Molding materials containing high molecular weight polyphenylene ethers are produced by a process in which a solution of a polyphenylene ether in an organic solvent, together with another polymer, is freed of solvent by multi-stage evaporation. The solvent is preferably an aromatic compound from the class comprising the hydrocarbons, halohydrocarbons, ethers or esters, the ratio of the other polymer to the polyphenylene ether is advantageously from 99:1 to 20:80 parts by weight, the other polymer is, in particular, a homopolymer or copolymer of styrene or of a homolog thereof, which may be modified with rubber, and the multi-stage evaporation process preferably comprises not less than two and not more than four working up stages. The evaporation is carried out in general at from 120 DEG to 280 DEG  C. and under a pressure of from 1 to 3,000 mbar, advantageously in the presence of assistants which reduce the partial pressure, eg. water and/or methanol.
Patent DE-3272455-D1 (DE)
Title: Process for the preparation of elastic flexible polyurethane foams
Inventor: BUETHE INGOLF DR
IPC: C08G18/48
Filed: 1982-09-09
Granted: 1986-09-11
Abstract: For the preparation of elastic flexible polyurethane foams with improved breaking elongation and very good setting behavior as well as densities from 7 to 120 grams per liter, organic polyisocyanates are reacted in the presence of blowing agents, catalysts and, optionally, auxiliaries and/or additives with polyols based on polyoxyalkylene polyols having terminal oxyethylene blocks of a degree of oxyethlation of 1 to 13 and which have a content of primary hydroxyl groups at the corresponding degree of oxyethylation equal or exceeding the value of curve A in the Figure in which curve A describing the relationship of the content of primary hydroxyl groups with the degree of oxyethylation.
Patent DE-3274855-D1 (DE)
Inventor: SCHNETTLER RICHARD A
IPC: C07D233/70
Filed: 1982-02-18
Granted: 1987-02-05
Abstract: Novel 4-aroylimidazol-2-ones of the following general structure which are useful as antihypertensives, cardiotonics and antithrombotics <CHEM> wherein Ar is 2-furyl, 2-thienyl or phenyl, the latter of which may optionally be substituted with one or two X groups; X is halogen, hydroxy, C1-4 alkyl, C1-4 alkoxy, methylenedioxy, C1-4 alkylthio, C1-4 alkylsulfoxide, C1-4 alkylsufone, CF3, -SO2N(R2)2, NR3R4, pyrrolidino, piperidino, morpholino, piperazino or N min -alkyl-piperazino, R is hydrogen, C1-4 alkyl, C1-4 alkylcarbonyl or benzyl; each of R1, R2, R3 and R4 are hydrogen or C1-4 alkyl; and the pharmaceutically acceptable salts thereof.
Patent DE-3276161-D1 (DE)
Title: Process and apparatus for the continuous separation of suspended matter from a polluted liquid
Inventor: PERREN BENNO
IPC: C02F1/24
Filed: 1982-11-11
Granted: 1987-06-04
Abstract: 1. Process for continuously separating off substances present in a contaminated liquid by the staggered addition of two polyelectrolytes for the formation of flocks, which are deposited in order to clarify the liquid, characterized in that, in order to form microflocks, the first polyelectrolyte and, as known per se, a gas are introduced into the contaminated liquid, the gas being dispersed in the form of gas bubbles of at least approximately the same size as the substances which are present in the liquid and have to be separated off, and being distributed at least approximately homogeneously in the liquid, the second polyelectrolyte, which has a charge opposite to that of the first, is then mixed with the liquid, and the floating macroflocks thus formed are deposited.
Patent DE-3363178-D1 (DE)
Title: Device for monitoring the valves of a power converter of an alternating voltage power converter
Inventor: KONISHI SHIGEO
IPC: H02H7/12
Filed: 1983-08-11
Granted: 1986-05-28
Abstract: 1. A device for monitoring the controlled rectifiers (TH11, TH12, TH21, TH22) of an alternating power converter, wherein at least two switching units are respectively connected in series with an anti-parallel circuit of two power converter-controlled rectifiers, at least one of which is controllable in each switching unit and where at least one signal sensor (R1, C1 ; R2, C2) is arranged for each switching unit, which signal sensor (R1, C1 ; R2, C2) forms a signal dependent upon the voltage connected to the switching unit and is fed to an analysing device by means of a transmission device, characterized in that a common signal generator (D11 to D14 ; CP1, CP2 ; ZD1, ZD2) is arranged to emit a signal in consecutive half-cycles of each period of the supply voltage for the one or the other of the two switching devices for the signal sensors (R1, C1 ; R2, C2) of two consecutives switching units, and that the combined signal is transmitted by means of a common transmission line (LG1).
Patent DE-3369191-D1 (DE)
Title: Method and apparatus for measuring the intensity of an acoustic field
Inventor: SANDHU JASWINDER SINGH
IPC: G01H9/00
Filed: 1983-03-21
Granted: 1987-02-19
Abstract: The meter includes a liquid crystal cell (12) for detecting acoustic energy and a control circuit (14) for applying an electric field to the cell. The cell includes a liquid crystal material having elongated molecules. The preferred liquid crystal is in the form of a layer of the nematic type which is homeotropically aligned. The elongated liquid crystal molecules exhibit positive dielectric anisotropy wherein the dielectric constant parallel to the molecule's axis is greater than the dielectric constant perpendicular to the molecule's axis. In the unexcited condition, the nematic layer is dark. In the ultrasonically excited condition, the nematic layer exhibit birefringence. A restoring electric force can be applied to the liquid crystal material to suppress the acoustically-induced birefringence condition of the cell to the dark appearance associated with the unexcited condition. The strength of the electric field required to suppress the birefringence is proportional to the acoustic intensity of the ultrasonic beam or acoustic field applied to the cell.
Patent DE-3373812-D1 (DE)
Title: Process for the preparation of modified triglycerides containing epoxy, hydroxy and ether groups
Inventor: MEFFERT ALFRED DR
IPC: C08G59/14
Filed: 1983-07-22
Granted: 1987-10-29
Abstract: Process for the production of modified triglycerides which contain epoxide groups, secondary hydroxyl groups and ether groups. The invention particularly relates to the production of reaction products of epoxidized triglycerides, for example epoxidized soy oil, with polyfunctional alcohols, for example glycols. The products so prepared are valuable starting materials, particularly for the production of alkyd resins.
Patent DE-3469252-D1 (DE)
Title: Remote control apparatus for the wireless control of various devices
Inventor: SCHIERING ROLF
IPC: H04Q9/00
Filed: 1984-04-05
Granted: 1988-03-10
Abstract: 1. A remote control device preferably for the radio control of various apparatuses of a kind of apparatus, preferably in the home electronics range, such as various television sets, videorecorders or hi-fi installations for example, wherein the remote control device contains operating elements for the control of an apparatus of the particular type of apparatus and a control code generator (3) which, on actuation of an operating element (2), can generate different control signals which, at the apparatus of a group of the same kind of apparatuses, initiate the function associated with the operating element (2) actuated, wherein furthermore the control code generator (3) is connected to a code selection circuit (5) which, when clear information is present about the specific apparatus to be controlled in the predetermined group of apparatuses, on actuation of an operating element (2) at the remote control device, selects the particular valid control code and allows that control signal to the generated which initiates the function associated with the actuated operating element (2) of the remote control device at the particular apparatus to he controlled, and wherein the code selection circuit (5) is connected to a code determining circuit (7), characterized in that, during the setting-up phase, on actuation of an operating element, the code determining circuit (7) transmits various suitable control code words to the apparatus to be controlled until the user makes it clear, by releasing the operating element (2) or by actuation of an acknowledging operating element (2), that the desired function has been initiated by the control code word last transmitted, and that the code determining circuit (7) then continues the corresponding operation, on actuation of other operating elements (2), until the valid control code word thus determined logically and clearly identify the complete control code of the particular apparatus to be controlled out of the large number of all the codes stored in the remote control device.
Patent DE-3473540-D1 (DE)
Title: Permanent magnet type stepping motor
Inventor: SAKAMOTO MASAFUMI
IPC: H02K37/18
Filed: 1984-08-06
Granted: 1988-09-22
Abstract: The motor includes a stator having coils (3) wound onto magnetic poles provided radially around the inside of a cylindrical yoke with pole teeth (4-1) formed on the tips of the poles.  The motor also includes a rotor having two poles (8) with pole teeth (9) around their circumferences and with a permanent magnet (10) sandwiched between the rotor poles. The magnetic poles of the stator are divided into two almost equal parts near their tips so as to be isolated axially from each other. Each of the pole teeth of the pole in each group is made to face one of the pole teeth of the two poles of the rotor with a gap between them.
Patent DE-3477067-D1 (DE)
Title: Optical devices
Inventor: BURT MICHAEL GRAHAM
IPC: G02F1/015
Filed: 1984-11-22
Granted: 1989-04-13
Abstract: An optical device having controllable absorption for an optical signal having a wavelength corresponding to a photon energy not exceeding 1.2 ev comprises (i) a semiconductor structure including one or more quantum well layers and (ii) means adapted for applying to the quantum well layers(s) an electric field such that the component of the field normal to the layer(s) may be controlled so as to determine the absorption edge of the quantum well layer(s) to be on either side of the optical signal wavelength. The device may be used as an optical modulator or switch and in optical demultiplexing.
Patent DE-3477778-D1 (DE)
Title: Flavene and thioflavene derivatives, processes for their manufacture, pharmaceutical preparations that contain such compounds, and the use of the latter
Inventor: RIMBAULT CHRISTIAN GERARD DR
IPC: C07D311/60
Filed: 1984-08-27
Granted: 1989-05-24
Abstract: Compounds of the formula Iwherein rings A and B are each unsubstituted or substituted; Y is oxygen, sulfur, sulfinyl or sulfonyl; one of the symbols Z, and Z<sub>2</sub> is halogen and the other formyl; and pharmaceutically acceptable salts of such compounds that contain a salt-forming group are useful for the treatment of diseases of the respiratory tract and of liver diseases. They are prepared by methods known per se.
Patent DE-3479230-D1 (DE)
Title: Wireline jar
Inventor: ZWART KLAAS
IPC: E21B31/107
Filed: 1984-12-17
Granted: 1989-09-07
Abstract: An upstroke wireline jar having a hammer 12 at the bottom end of an operating rod 3 which is axially slidable in a casing 2 having an anvil 13 at its upper end. This casing also includes a releasable coupling means which is biased downwards by a spring 5 to a rest position, said coupling means comprising a sleeve 4 which receives the rod 3 into its upper end and a plurality of arcuate segments 9 which are contained in apertures in the sleeve and engage in a circumferential groove 10 in the rod. Circumferential recesses 11 and 17 in the interior wall of the casing 2 are adapted to partially receive the segments when the sleeve is in appropriate registration therewith thereby facilitating disconnection and subsequent re-engagement of the operating rod with the sleeve. The spring 5 is mounted below the hammer so as to allow free travel of the latter along a substantial portion of the casing. The spring is provided with an upper abutment 6 mounted on a rod 7 the axial position of which is adjustable from outside the jar. At its bottom end the spring 5 abuts a flanged bush 15 which depends from the sleeve 4. A second spring 6 assists in biasing the sleeve to its rest position.
Patent DE-3481585-D1 (DE)
Inventor: MANNING GRAHAM PETER
IPC: B01D46/46
Filed: 1984-01-30
Granted: 1990-04-19
Abstract: The present invention relates to dust recovery apparatus comprising a housing capable of sustaining at least slight positive pressure and suitable for accommodating powder processing machinery, the housing having an inlet leading to a source of air and an outlet connected to an exhaust outlet via a collector for collecting air-intrained dust, means for passing air at a predetermined rate through the apparatus while maintaining a slight positive pressure in the housing and an air-flow rate sensor which detects air-flow rate in the apparatus and triggers means for stopping air passing to the collector when the air-flow rate falls outside a predetermined range.
Patent DE-3564318-D1 (DE)
Title: Sliding contact bearing for radial load
Inventor: LEHTINEN JUKKA
IPC: F16C33/10
Filed: 1985-03-29
Granted: 1988-09-15
Abstract: The invention provides a radial friction bearing assembly, particularly for rotatably mounting the rolls of a paper or textile material processing machine, which will give a stable rotational movement without any vibrations and ensures that always an uninterrupted lubrication film is available, even at very low rotational speeds. A preferred embodiment of the bearing assembly comprises a stationary shaft member and an annular sleeve member rotatably mounted on the shaft member. The latter one comprises on its outer surface a plurality of equidistantially arranged longitudinal grooves which extend parallelly to the axis of the shaft member. A plurality of trapezoidally shaped recesses or pockets, having a substantially smaller depth than the longitudinal grooves, extend from and communicate with said grooves, the base edge of the trapezoid adjoining the leading edge of the longitudinal grooves. Between two adjacent recesses or pockets, a circumferential annular groove is provided which communicates with all longitudinal grooves. A lubricant, preferably water, is fed to the longitudinal grooves and circulates therein as well as in said circumferential grooves, said recesses and in a gap provided between the stationary shaft member and the rotating sleeve member.