baber/WOPTO huggingface dataset:
Patent DE-2208519-A1 (DE)
Title: Polyethylene oxide dispersions - in organic carriers for reducing hydrodynamic flow resistance of water
IPC: C08L71/02
Filed: 1972-02-23
Abstract: The dispersions contain (A) water-sol. ethylene oxide polymers of average mol. wt. >500,000. >=85% being 20 mesh and 10% 60 mesh, (B) an inert liquid carrier which does not dissolve (A), contains C, H and hydroxylic O atoms, has pour point -30 degrees C, flash point >93 degrees C, viscosity 65 cP at 20 degrees C and mol. wt. 160, and (C) an inert suspending agent to prevent setting over long periods. (A) may be a co-polymer with propylene oxide and constitutes 5-65 wt.% (pref. 10-50 wt.%) of the total dispersion. (B) is pref. a 2-10C alkane diol and (C) is pref. colloidal silica, hydroxypropyl cellulose or colloidal clay. The dispersions are added to water to reduce flow resistance under turbulent flow conditions, e.g. through pipes used for fire-fighting or irrigation purposes.
Patent DE-2227400-A1 (DE)
Title: Unsatd aldehydes derived from higher diene-ols - for prepn of flowery perume compsns with some having ozone-like odours
Inventor: MUELLER ERNST DR
IPC: C07C45/49
Filed: 1972-06-06
Abstract: Title cpds. are of formula (I): (where R1 and R4 are Me or Et; R2 and R3 are H or Me; R5 is 1-6C alkyl or H; n is 1 or 2). They are obtd. by reacting alcohols of formula (II): with CO and H2 at 50-200 degrees C/100-1500 atmos, in the presence of carbonyl complexes of Gp. 7, and esp. rhodium carbonyl complexes e.g. 2 : 6 : 10-trimethyl-undeca-1:6-dien-10-ol is reacted with CO/H2 in a 1:1 ratio in the presence of dimeric cyclooctadiene-1:5-yl-rhodium chloride to give 3:7:11-trimethyl-dodeca-7-en-11-ol-1-al.
Patent DE-2236611-A1 (DE)
Title: Steel cord sections - bonded by heat/pressure under sensor control
Inventor: ROST HARRY
IPC: B29C65/00
Filed: 1972-07-26
Abstract: Designed for bonding sections of rubberised steel cord, as a reinforcing layer for vehicle tyres, a feed channel carries the section, with an air sensor to detect the passage of the end of a section. A holding clamp and feed brake is triggered, for bonding by a press in a heat/pressure action. The purpose is to eliminate hand feed and manual positioning to increase process speeds.
Patent DE-2248165-A1 (DE)
Title: Textile machine electro-hydraulic drive - needle bar etc reciprocated hydraulically from interchangeable controller wi
Inventor: GROSSER HEINZ
IPC: D04B15/12
Filed: 1972-09-30
Abstract: Any reciprocating element such as the needle bar of a flat bed knitting machine can be accurately controlled from an interchangeable electric control member controlling the supply of pressure fluid to an hydraulic cylinder. A feedback system compares the actual position of the member with its desired position, and adjusts the pressure fluid supply in accordance with the error. The frequency is controlled and adjusted, separately.
Patent DE-2251037-A1 (DE)
Title: Chelation polymers - prepd from a nitrilo cpd and an ethylene imine
Inventor: RAINER NORMAN B
IPC: C08G73/02
Filed: 1972-10-18
Abstract: Water soluble polymers are manufactured by reacting a nitrilo cpd. selected from nitrilo triacetic acid, its salts, lower alkyl esters and amides with a water soluble ethylene imine cpd. contg. >=80 wt.% of repeating unit of formula: -NHCH2CH2-. The polymers are used for the extraction of low conc. metallic ions.
Patent DE-2254071-A1 (DE)
Title: Framed mosaic plate - with heat set cement bond
Inventor: GRUYTER THEODORUS MARINUS DE
IPC: B28B19/00
Filed: 1972-11-04
Abstract: The mosaic is produced by placing the mosaic stones with a surrounding metal frame face downwards onto a smooth inert base, after which a cement contg binder is applied onto and between the stones, and the assembly is heated until the cement is set sufficiently hard to yield a single metal framed object. The method is used for making table tops, chimney breasts etc, requiring a certain amt of mechanical strength.
Patent DE-2307559-A1 (DE)
Title: Self adhesive insulating strip - for pipes or tanks is rapidly fixed and easily trimmed to shape
Inventor: WANKE WILHELM
IPC: C09J7/20
Filed: 1973-02-16
Abstract: A self-adhesive insulating strip, esp. for thermal and acoustic insulation e.g. of pipes tanks etc., consists of an insulating layer and and external facing sheet bonded to it; the facing sheet projects at one side and is coated on the inner side of this projecting portion with adhesive, so that rapid edge-lapping is possible when the strip is applied.
Patent DE-2316642-A1 (DE)
Title: Circular knitter for looped fabrics - with sinker projection profiled to present yarns to needle action
Inventor: KRYLOW ALEXANDR IOSIFOWITSCH
IPC: D04B15/06
Filed: 1973-04-03
Abstract: Designed for fabrics of knitted ground yarn loops with warp and weft yarns, the sinkers are located between the needles with a projection forming a V-shaped fork for the warp yarn to pass through while the sinker is moved along its geometrical axis. A groove is shaped in the body of the sinker to take the weft yarn behind the needle while the needle is moved above or below the level of the sinker. The purpose is to allow the weft yarn to pass behind the needle in the development of the knitted loops, giving a constant tension which does not distort the knitted fabric when it is taken off the needles.
Patent DE-2330221-A1 (DE)
Title: Automatic paper-cutting machine with indexing feed - has knife controlled by impulse emitter when stage number reached
Inventor: SUTTHOFF AUGUST
IPC: B26D7/28
Filed: 1973-06-14
Abstract: The paper or sheet to be cut is unwound from a roll by pull rollers over a table, and cut by a knife at right angles to the latter when the set length is reached. The pull rollers are driven by an indexing mechanism in stages of 5 mm or less, which are counted. When the set total is reached an impulse emitter gives the command signal for knife operation. The latter can be driven by a reversible-pole motor which switches off after a knife stroke in one direction is completed. Pull rollers are driven by a stepped motor.
Patent DE-2334146-A1 (DE)
Title: Assembler for honeycomb box inserts - has template and suction grippers for slotted strips
Inventor: FELDMANN HANS
IPC: B31B105/00
Filed: 1973-07-05
Abstract: Assembler for honeycomb box inserts of slotted strips has mounting templates with forks corresponding to the arrangement of the strips in the insert, to hold the strips, and which are moved stepwise past stationary strip feeders, which have associated positive suction grippers, each of which sucks one strip per cycle from the magazine and moves it to the template and pushes into the fork in front of it, then releases the strip by changeover to compressed air, finally returning to its initial position and switching back to suction. The strips are rapidly and exactly positioned.
Patent DE-2335936-A1 (DE)
Title: Bell-crank lever arrangement - for holding and smoothly adjusting rollers in chocks, particularly in three-high roll stands
Inventor: PALM DIETRICH
IPC: B21B31/18
Filed: 1973-07-14
Abstract: Rollers in chocks are held axially and smoothly adjusted by a bell-crank lever arrangement with pivoted bell-crank levers acting against each other and pressing against chock shoulders. There are also two bell-crank levers which take effect in the same axial direction and are connected adjustably with each other outside the roller axis by a grip spring tensioning member. Each of these bell-crank levers can be braced against a respective bell-cank lever acting in an opposite direction to the axial by an adjusting member.
Patent DE-2338675-A1 (DE)
Title: Separator for textile waste extractor - has counter rotating sieve drum with elastic air seal flaps
Inventor: TOEGEL ALFRED
IPC: D01G11/00
Filed: 1973-07-31
Abstract: The dust and fibre laden extractor air is ducted to the separator housing. This contains a counter-rotating sieve drum which is fitted with regularly spaced, radially outward projecting elastic flaps. A stationary screen partly covers the inner drum surface. Scraper profiles on the inner drum surface continuously sweep the space between drum and screen. The housing contains cylindrically curved inserts which together with the flexible flaps from an air seal. The design prevents large volume air leakage and thus reduces power requirements. In operation the separator induces a continuous turbulence within the chamber and this assists in efficient separation of the solids from the air stream.
Patent DE-2341067-A1 (DE)
Title: Electrostatic thick-coating of conductive surfaces - with lacquer or paint applied at normal or elevated temp.
Inventor: GABRIEL GABRIEL DIPL-ING DR
IPC: B05D1/06
Filed: 1973-08-14
Abstract: Electrically conducting surfaces are thickly coated, with air or oven drying, with a 2-component lacquer or paint by continuous electrostatic application at a normal or elevated temp. Preferably the appts. has the lacquer or paint, to be sprayed, continuously mixed; spraying can take place cold or at elevated temp., by heating in the appts. The lacquer or paint is made with no, or little, solvent; the electrical conductivity is regulated, and the thixotropy is increased, at normal or elevated temp. to give a reduction of viscosity; the thick coating does not have to be fired in. The system achieves a uniform colour and avoids the normal wear effects in the pistol used due to the rubbing action of the particulate components being discharged.
Patent DE-2343282-A1 (DE)
Title: Retreading tyres by pressing tread onto carcase - with pressurised hot gas surrounding combination of carcase and tread
Inventor: VESPER FRITZ
IPC: B29D30/56
Filed: 1973-08-28
Abstract: Tyres are retreade by pressing onto the carcase a tread strip with the help ofa pressurised gaseous, hot pressing agent, that surrounds the combination of carcase and tread strip. Process enables tyres of different sizes to be retreaded with a single mould. Higher quality retreads are produced, as deformation of the carcase is avoided.
Patent DE-2352861-A1 (DE)
Title: Underwater seismic research system - uses a number of explosive charges of different sizes spaced apart
Inventor: MOTT-SMITH LEWIS
IPC: G01V1/02
Filed: 1973-10-22
Abstract: The seismic system involves the use of a train of explosive charges at successively larger spacings and increasing gas volumes situated at a similar depth below the water surface. Each of the charges (18, 20, 22, 24, 26, 28, 30) is supported by its own float (32, 34, 36, 38, 40, 42, 44). The number of units is not greater than seven. Each air chamber attached to the cannon has a secondary chamber with a volume of about one-third of the first chamber to generate a secondary seismic wave. The time intervals between the detonation of the charges is regulated by a control circuit. The connecting cable to the survey vessel is connected at the end nearest the largest explosive charge.
Patent DE-2355756-A1 (DE)
Title: Two term process controller with digital integration - integrator utilises voltage to frequency converter coupled to bidirectional counter
Inventor: JOHN REINHARD
IPC: G05B11/42
Filed: 1973-11-08
Abstract: A two term process controller is based upon an analogue channel and a digital integrating channel. An input voltage is fed to an analogue-to-digital converter in the form of a voltage to frequency signal converter. The output frequency is processed in a frequency dividing circuit with a number of pick-off output lines. The output of the frequency divider is used to change the state of a bi-directional counter coupled to a digital to analogue converter. Directional control of the bidirectional counter is exercised directly from the voltage to frequency converter. In the fully automatic mode of the output of the digital to analogue converter is compared with the input voltage and the difference stored in an analogue memory. For smooth change-over to the manual mode a standard frequency signal is substituted upon direction of a control circuit.
Patent DE-2358572-A1 (DE)
Title: Coin operated automatic printer - produces strips of tickets for public transport passengers using continuous paper strip and print unit
Inventor: SEELIGER KLAUS DIPL ING
IPC: G07F17/42
Filed: 1973-11-24
Abstract: The paper strip is fed to a print unit which imprints a common section and any number of individual tickets. The whole strip is then separated by a cutting arrangement. the automatic printer is provided with a store containing the price according to the charges of conveyance. The store is controlled by the coins to be inserted. It releases a drive for the continuous paper strip and imprinting the number of strips of tickets corresponding to the amount which has been inserted. The drive is released after a fixed, predetermined period of time, following the insertion of the coins, has elapsed.
Patent DE-2364441-A1 (DE)
Title: Ind.-gas-cooled injected water particles vaporisation acceleration - with electric charging and exposure to constantly alternating electric field
Inventor: MATTS SIGVARD
IPC: F28F13/16
Filed: 1973-12-24
Abstract: The water particles are injected for cooling purposes into hot industrial gases, especially in cooling-towers before the gases are introduced into electro-filters, with part of the heat content used for heating drops which have formed, and more for vaporising them. Pref. in the course of spraying in the hot gas, the particles are electrically charged, and then exposed, simultaneously with the gas, to the effect of an electric field induced to constant changes in flow direction; the field intensity of this produces fluctuation from a fully positive to a fully negative value, so as to accelerate the velocity of the water particles relative to the gas and relative to their speed of fall in the gas. Costs and cooling-tower dimensions can be reduced.
Patent DE-2403762-A1 (DE)
Title: Switching arrangement for transformer tap changer - is fitted with auxiliary contacts in two planes and two moving contacts
Inventor: WIDMANN WERNER
IPC: H01F29/02
Filed: 1974-01-26
Abstract: The purpose is to reduce the amount of material required to give tap switching with minimal contact wear. Several fixed contacts connected to the fine step winding are brought out in two planes. In one the connection is direct, in the second it is via resistors. Moving contacts make the circuit with the former and latter contacts respectively. In the case of the former a resistor is included in the moving contact circuit. Both contacts are then connected to the main winding. The moving contacts are arranged to operate sequentially so that one is always closed when the other is opening.
Patent DE-2404794-A1 (DE)
Title: Fabric impregnated with polymer and aziridino acid ester - as synthetic leather with high absorption of water vapour
Inventor: FIKENTSCHER ROLF DR
IPC: D04H1/74
Filed: 1974-02-01
Abstract: Textile flat goods are treated with (I) a soln. or aq. dispersion of a polymer, and (II) 6-40 wt. % of an aziridino-propionic or succinic acid ester in which the alcohol is derived from a polyglycol ether with 6-100 ethylene oxide units or foam an ethylene oxide adduct of a2-6C at least bifunctional cpd. contg. OG, NH2, or NH gps. with 3-50 ethylene oxide units per functional gp. the aziridino cpd. is fixed on the textile by a cross-linking agent contg. COOH, OH or NH grps. The treated textile is used as a leather substitute. The fabric has higher water vapour absorption than known leather substitutes. The fabric is a (non)woven material, at least mainly of synthetic fibres, esp. 1-5 (1.5-3) mm thick with wt. 100-500 (150-350) g/m2 and showing 10-70% (25-50%) shrinkage on heating.
Patent DE-2405803-A1 (DE)
Title: Machine for removing rooted hop vine - has pick-up device, cutter and chopper and is tractor-towed or self-driving
Inventor: SOLLER JOSEF
IPC: A01G3/00
Filed: 1974-02-07
Abstract: The chopping device fitted on the machine chassis consists of a cutter-cylinder, a pick-up roller and a conveyor-belt. A jib-arm is hinged to the chassis by means of a vertical joint-bolt, and projects to one side of the towing tractor. To the free end of the jib arm is a semi-circular, horizontal bar to the bottom side of which are fixed prongs projecting into the ground. Two pronged wheels are positioned underneath the jib-arm and behind the prongs. Behind the pronged wheels is a cutter-blade with pick-up device after it - all fixed to the jib-arm. The free end of the pick-up device opposite the cutter opens into a conveyor-belt so that the vine-stumps are continuously conveyed to the cutter-cylinder.
Patent DE-2407252-A1 (DE)
Title: Cover for tennis court or building site etc. - has material held by rollers in track with lock and guide surfaces
Inventor: LOSCH MAX HERMANN DR ING
IPC: E04H15/32
Filed: 1974-02-15
Abstract: The cover for a tennis court or building site enables longitudinal forces to be transmitted to the support system. It consists of a course of material held by a number of rollers or gliders which are separate from one another and run in tracks of a support system with glide surfaces. The rollers or gliders can be locked onto the track, by a brake located on the track. The brake is controlled by at least one spring and consists of two brake elements on opposite sides of the rollers which operate simultaneously.
Patent DE-2410113-A1 (DE)
Title: Segmented drum filter fith filtrate discharge channels - for filter filtration and longer intervals between cleaning
Inventor: OTTE WILHELM
IPC: B01D33/00
Filed: 1974-03-02
Abstract: In a drum filter with filter segments fixed to the periphery of the drum by clamping elements and provided with filtrate discharge channels on the outside and support elements on the inside, the latter form partial filtrate discharge channels, the number of which, (pref. 2 or 4 per segment) arranged on the peripheral side edges of the segments. This reduces the return flow of filtrate when the filter cake is blown off and increases the rate of flow of filtrate so that deposition of fine particles passing through the filter cloth, particularly at the start of filtration does not take place, so that cleaning intervals are of greater duration.
Patent DE-2412737-A1 (DE)
Title: Flow-volume regulator is particularly for gas appliances - with float-disc controlling regulating gap depending on pressure difference
Inventor: REIMERS ERNST
IPC: G05D7/01
Filed: 1974-03-16
Abstract: The flow-volume regulator is for use in gas-heated appliances to regulate gas quantities and has a housing in two sections with inlet and outlet. The upper section has a bolt adjustable by a screw holding a carrier for a first valve seating. A second valve seating is formed by the inside wall of the upper section. Two sharp-edged circular valve seats of a hollow cylindrical valve body work in conjunction with the conical valve seat surfaces. A float disc moves the valve body towards the valve seatings, in the presence of a flow, through the operation of stirrup arms.
Patent DE-2428850-A1 (DE)
Title: Coin-operated gaming machine with winnings pay-out - has rotating body determining winning or losing games, which are indicated
Inventor: HILTGENS GUENTHER
IPC: G07F17/32
Filed: 1974-06-14
Abstract: The coin-operated gaming machine is designed to provide increased interest for the player in not only indicating losing games, but also in allowing, after a given number of losing games has been registered, for enhanced chances of winning for games in the same category. The machine has a rotating indicator (21) with numbers (22) distributed around its path of rotation; the three numbers at which it stops during separate passes in one game are totalled. A set of indicators (24) with numbers 6 - 14 which light up, show losing games, the odd numbers being those which provide enhanced chances of winning in certain circumstances. Two similar sets of indicators with numbers 1 - 5 and 15 - 18 show winning games.
Patent DE-2434075-A1 (DE)
Title: Liquid filter - with fine and coarse filter elements and by-pass valve for these
Inventor: BERNHARD HERMANN
IPC: B01D35/147
Filed: 1974-07-16
Abstract: In the liq. suction filter with by-pass valve, esp. for hydraulic oil, having in known manner a filter housing held by a coaxially installed central bolt on a machine part with an outlet and inlet for the liq. to be filtered and provided with a cylindrical coarse filter element coaxial with the central bolt in turn enclosed coaxially within a cylindrical fine filter element, in which it is supported displaceably on the central bolt, and pressed by a spring against a valve seat fixed to the central bolt, the valve body forming the base of the coarse filter element, a collar at the lower end of the fine filter element encloses and seals the lower edge of the coarse filter element and serves as a guide for this when its base is pressed against the valve seat or is raised slightly from this by a rise in the flow resistance. The height of the collar is such that on further displacement of the coarse filter element as a result of still further increase of flow resistance, the coarse filter elements is no longer enclosed in sealing manner, so that the hydraulic medium can flow through the filter housing and by-pass the coarse filter element. Appts. permits an adequate flow of hydraulic fluid through the filter even if the pressure drop due to fouling of the filter and increase in viscosity due to the low temp. of the oil would otherwise prevent this.
Patent DE-2442621-A1 (DE)
Title: Projection system using readily available items - uses liquid crystal layer with electrodes for light beam modulation
Inventor: NICHOLSON GEOFFREY C
IPC: G03B21/132
Filed: 1974-09-05
Abstract: The projection system comprises a light source, a condenser and an optical system projecting and focussing the beam from the source on a screen. A modulator between the condenser and the projection head modulates the beam. The modulator consists of a thin liquid crystal layer between a transparent upper surface with at least one conducting surface in contact with the layer, and a lower plate with conducting surface areas opposite the above and in contact with the other surface of the layer. A voltage source generates a potential difference between the selected opposite conducting surfaces at a greater value than the liquid crystal threshold voltage.
Patent DE-2445650-A1 (DE)
Title: Conveyor for electrical devices etc - with platforms automatically guided round semi circular ends of double track on centrifugally inclined balls
Inventor: SCHEFFLER HELLMUT
IPC: B65G13/08
Filed: 1974-09-25
Abstract: Conveying plant includes a double strand conveying track along which are circulating flat platforms by which work pieces are conveyed from one working place to other. The flat platforms (1) due to gravitation force move automatically round semi-circular ends of the double conveying tracks. In order to facilitate the platforms movement the track ends are fitted with centrifugally inclined freely rotating balls (8) which are spaced in semi-circles (6, 7) and are supporting the platforms (1). The outer side of the platforms (1) is provided with rollers (11) which due to the action of a centrifugal force on the platform (1) are moved against a guide (5) by which they are guided together with the platforms (1) is marked with different colours and the platforms (1) are partly surrounded by an edge strip.
Patent DE-2446653-A1 (DE)
Title: Bipolar semiconductor storage element - with multiple emitter in oppositely doped inclusion of epitaxial layer on substrate
Inventor: MUELLER RUEDIGER DR ING
IPC: H01L29/00
Filed: 1974-09-30
Abstract: A bipolar semiconductor storage element with multiple emitter consists of a doped semi-conductor substrate carrying an epitaxial semiconductor layer, doped to the opposite type of conduction. The doped epitaxial layer includes emitter regions of a type opposite to the epitaxial layer. A trough-shaped region, doped opposite to the epitaxial layer in which it is located, contains emitter regions of the same type of conduction as the epitaxial layer. This design requires a smaller area than conventional bipolar storage elements. Its power loss both in the OFF and ON state is also much lower.