baber/WOPTO huggingface dataset:
Patent DE-2439281-A1 (DE)
Title: Trifluoromethyl phosphono-butyric acid and derivs - for use as flame retardants,lubricant additives, hydrophobing agents, etc.
Inventor: BLUM HELMUT
IPC: C07F9/38
Filed: 1974-08-16
Abstract: beta-Trifluoromethyl beta-phosphonobutyric acid and derivs., of formula (I): (where R1, R2 and R3 are H, alkali metal, NH4 or a quaternary N-alkyl gp. with 1-3C alkyl gps.) are used as flame retardants, lubricant additives and hydrophobing agents, and in preparations for tooth and mouth care. (I) are prepd. by reacting dialkyl phosphites in presence of alcoholate with beta-trifluoromethyl crotonic acid alkyl esters. The resulting esters may be converted into the free acid by hydrolysis, and the acid may then be converted into salts as usual. Suitable phospites are dimethy, diethyl or dipropyl phosphites. The reaction is pref. carried out in presence of inert solvent, e.g. benzene, toluene or dioxane, to prevent local overheating by the exothermic reaction. The alcoholate, e.g. Na methylate, ethylate or propylate, is used in amount of 2-10% of the total compsn. The esters obtained are oily liquids, while the acids and salts are crystalline.
Patent DE-2501680-A1 (DE)
Title: Expansible polystyrene particles for foam moulding - contg. nucleating agent to give coarse pore structure and homogeneous density
Inventor: WALTER MANFRED DR
IPC: C08J9/00
Filed: 1975-01-17
Abstract: Finely divided expansible styrene polymer particles, for the prodn. of foram mouldings, contain 0.0001-0.2 phr of a nucleating agent (I) in non-homogeneous distribution, (I) being situated only in a thin band at the surface of the particles and virtually absent in the interior. Mouldings obtd. from the particles can be demoulded after a short dwell-time in the mould, have very low thermal conductivity (due to the coarse internal pore structure), have good dimensional stability (i.e. no lateral depression) and have homogeneous density.
Patent DE-2503089-A1 (DE)
Title: Split blocking valve housing sealing ring - has centering pins held in seats in ends of housing flanges
Inventor: NOORT JOHANNES HENDRIK VAN
IPC: F16K1/226
Filed: 1975-01-25
Abstract: The blocking valve for pipes has screw connected housing parts which enclose a sealing ring whose inner part forms sealing face for a blocking valve plate. The sealing ring is reliably held in a concentric position even under extremely high load loads. The sealing ring (4) is held by axial pins (7) which pass through the sealing ring. The ends of the pins rest against the walls of a dovetail groove formed between the housing halves. Alternatively the ends of the pins project beyond the sealing ring into holding openings. The sealing ring provides a fluid tight joint between the pipe flanges and the periphery of the valve member (10).
Patent DE-2505024-A1 (DE)
Title: Snuff-taking device - has spring-loaded throwing plate with two holes for snuff
Inventor: BADER STEFAN
IPC: A24F47/00
Filed: 1975-02-06
Abstract: Device for throwing snuff into the nose of a snuff-taker, includes a frame (1) for positioning the device under the nose and containing two holes (16) in the throwing plate (3) for the snuff. The throwing plate is spring loaded (4) and when released knocks against the frame just near the nose. The throwing plate is a two-arm lever and, mounted on pivots to the frame. The arms are of unequal length, the longer arm containing the two holes for the snuff. The frame (1) has a cut-out (5) for the throwing plate and an adjustable ledge (2) for positioning of the device against the face below the nose.
Patent DE-2518557-A1 (DE)
Title: Low temp. air sepn. process - using a second gas expansion stage to give improved energy recovery
Inventor: SKOLAUDE WERNER DIPL ING
IPC: F25J5/00
Filed: 1975-04-25
Abstract: In a low temp. air sepn. process, for the prodn. of gaseous or liq. oxygen, and in which two sepn. columns operating at two different pressures are used, with expansion of a compressed gas stream through an expansion turbine for recovery of energy, the system incorporates a second gas expansion turbine fed by a portion of the compressed gas stream which has been further heated by heat exchange with the gas leaving the first turbine. The method is used in low temp. air sepn. plants which use expansion turbines for energy recovery and pressure redn. Additional energy recovery and better use of cooling is obtd. allowing the prodn. of more liq. oxygen; more compact arrangement of heat exchangers is obtd.
Patent DE-2524331-A1 (DE)
Title: Logic probe circuit for adjustment of electronic modules - has complementary transistor pair with pulse output to test-prod.
Inventor: KUPEC JIRI DIPL ING
IPC: G01R19/165
Filed: 1975-06-02
Abstract: The logic circuit testing unit consists of a PNP transistor (T1) with emitter connected to 5 volt positive supply and base connected via a resistor to the output of a NAND gate (A) whose input is fed with positive-going clock pulses (1). The transistor collector is coupled to the collector of an NPN switching transistor (T2) whose base is connected to a fixed positive potential via a variable resistor. Base and emitter are connected to earth potential via bias resistors (R4)(R5) and the output is taken from the emitter to the test prod (H). A flying lead connects the earth line of the logic prove with the circuit under test (Z) and the test prod can be placed at the appropriate point on the circuit (M) so that a logic '1' or '0' is applied to the input of the circuit under test.
Patent DE-2524468-A1 (DE)
Title: Human extremity exercise device with pivoting framework sections - has middle section with parallelogram type guide and coupled push rod
Inventor: LANG FRIEDRICH
IPC: A61H1/02
Filed: 1975-06-03
Abstract: An exercise device for use in exercising the extremities of human bodies e.g. legs and arms consists of three framework sections. Two of them are joined together in a pivoted manner and can be extended or adjusted for length telescopically. The construction is such that the outermost framework piece is also attached to the middle section in a linked or pivoted manner. The middle section has a parallelogram type guide with a push rod (11) device engaging with the guide.
Patent DE-2534545-A1 (DE)
Title: Ashtray with removable hollow rim receptacles - has inserts with polygonal form in apertures of ashtray of same material
Inventor: MATTELAT GEB SPECK MARGARETE
IPC: A24F19/14
Filed: 1975-08-02
Abstract: The ashtray has a centre for ash and cigarette ends with small receptacles (5) with hollowed inner centres arranged on its rim. Reliefs are provided in the rim (3) into which the inserts (5) in the form of receptacles with moulded inner centres fit. Each insert fits closely into its relief in the rim. The exposed faces of the ashtray (1) and of the inserts (5) are manufactured from the same material. The height of the hollow inner centre of the inserts corresponds to approximately double its internal width.
Patent DE-2534672-A1 (DE)
Title: Push-rod assembly for actuating sliding stopper - which is provided with through holes for carrying cooling air to stopper
IPC: B22D41/38
Filed: 1975-08-02
Abstract: Device for actuating a cooled sliding copper located on the bottom of a casting ladle, consists of a piston-cylinder unit with a hollow piston rod for conveying the coolant and provided with >=1 connection to the sliding stopper, the rod projecting out of the connection to provide a coolant inlet. Between the stopper and the piston rod there is a push-rod assembly with a through hole for the coolant, one end of the assembly being connected to the stopped by a ball-joint, the other end being connected to the piston-cylinder unit which can be hinged on a thrust pad on the bottom of the ladle. This device in thus only exposed to a limited amt. of heat.
Patent DE-2536248-A1 (DE)
Title: Printed circuit substrates contg. sulphonated parts - prepd. by pref. adding sulphonated styrene (co)polymers or sulphonated nitrile rubber
Inventor: SAURE MANFRED DR PHIL
IPC: H05K3/38
Filed: 1975-08-14
Abstract: Substrate contg. sulphonated parts is produced by providing substrate and/or an adhesive layer applied to substrate with sulphonated additives. Substrate can be used in prodn. of printed circuits by additive technique. (i) The sulphonated component additives can be prepd. separately from substrate, by a controlled process. (ii) Metallising of substrate can be carried out without oxidn. with strongly acidic pickling compsns. (iii) Waste water problems are obviated. (iv) Not only surface, but whole layer thickness, can be provided with active positions for metallising. Pref. additives are sulphonated styrene homo- or copolymers and sulphonated nitrile rubber. Styrene-butadiene rubber may also be used.
Patent DE-2539552-A1 (DE)
Title: Plant pot with water-container - has jagged edged support containing absorbent material in space below pot
Inventor: SCHMOHL PETER
IPC: A01G31/02
Filed: 1975-09-05
Abstract: The pot (1) has a base on which stands a support (2) with holes orslits (3) near the bottom. The support contains absorbent material (5) which extends from the the bottom edge (2a) of the support (2) to above the top edge (4), so that it covers the whole of the base of the plant-pot (8). The top edge (4) of the support is preferably jagged or notched so that the absorbent material clings to it. The support can be of any shape, and may be made in one piece with the container-floor. The slits (3) serve to let the water (10) in from the container into the support (2), to be absorbed by the material (3) inside, and then to be soaked up by the soil in the plant-pot (8). An overflow hole (6) in the container wall (1) is positioned at about the same height as the top edge (4) of the support. Axial ridges (7) on the inner wall of the container (1) grip the pot (8).
Patent DE-2540914-A1 (DE)
Title: Integral lotion bottle and eyebath - has valve at top of tube extending to bottle base for inverted use
Inventor: HEIN HORST
IPC: A61H35/02
Filed: 1975-09-13
Abstract: An eye lotion applicator is normally only be used upright with pressure on the squeeze bottle forcing up a tube to an eyebath. Inverting the bottle would move the liquid to the top and the internal tube becomes ineffective. Instead a sliding ring opens a passage (264) at the top of the tube. The lotion can thus reach the eyebath whatever the position of the bottle. The sliding ring can be provided inside the tube or outside, when it is cup-shaped to provide a non-return valve across the internal tube when the bottle is upright. The applicator can be used by a patient lying down.
Patent DE-2542780-A1 (DE)
Title: Travelling noise absorbers for railway vehicle bogie - are coated plates enclosing bogie sides and ends and wind deflectors
Inventor: KLAPPER HELMUT
IPC: B61D17/02
Filed: 1975-09-25
Abstract: The bogie for railway vehicles can effectively prevent aerodynamic and rolling noise of wheel sets. The ends and sides of a bogie are enclosed with noise absorbing covers. The bogie is also covered by an additional noise absorbing cover at the top. This cover faces the bottom of the coach body. This side and enclosing covers are sheet metal or plastics components coated with a sound absorbing material. The side covers are held on the bogie by readily released fasteners. Transverse wind deflectors are fitted in the front and rear of a bogie to cover noise absorbing covers at bogie ends.
Patent DE-2547843-A1 (DE)
Title: Sampler for mechanised analyser - having wash vessel for sampling probe with air injection
Inventor: SEEGER HANS DR
IPC: G01N35/10
Filed: 1975-10-25
Abstract: Sampler for use with mechanical analyser has system in which a sampling probe dips alternately into sample vessels and a single wash vessel. This vessel has a redn. in dia. below its inlet. The i.d. reducing to just slightly larger than that of the probe, the probe is inserted down to the level where this redn. occurs. Wash liq. is pumped up from the base of the vessel and is broken up by bubbles of gas. The narrow section is directly joined to the inlet which can have a conical section reducing to the i.d. of the narrow section. The inlet section can have a cylindrical portion of larger dia. before the redn. piece down to the narrow dia. For use with the automatic sampler described in parent patent. An improved cleaning action in the probe is achieve by breaking up the liq. with bubbles of gas or air. This is difficult to achieve and involves repeated physical movements, resulting in wear, maintenance etc. The method described provides slugs of air down the sample line to wash it out without this repeated movement.
Patent DE-2550032-A1 (DE)
Title: Gas seal for light alloy rotating piston - has carriers and grooves for parallel holding of sealing profiles
Inventor: REITZ HOHANNES ING GRAD
IPC: F01C19/04
Filed: 1975-11-07
Abstract: The gas seal is used for a light alloy piston in a rotating pison I.C. engine. The engine has trochoidal configuration and each piston corner has sealing profile carrier. The ends of the sealing profile axial carriers have pins for holding sealing profiles. The seal is fitted without machining of the piston and ensures good parallel contact of the sealing profile on the pin for preventing wear. A gap is formed between piston and prismatic sealing profile carrier unde side. The side faces of this sealing profile carrier faching the sealing profile groove form a part of the piston flank. The end faces have a slot into which is inserted ith corner pin whose cross section matches the basic face of the slot. The underside projection of the carrier is held by grubscrews.
Patent DE-2559517-A1 (DE)
Title: Yarn brake for feeding device of e.g. doubling machine - has yarn guide duct which can be blocked by brake element to stop yarn feed
Inventor: ECKHOLT HEINRICH
IPC: D01H13/10
Filed: 1975-09-26
Abstract: A yarn feed device for advancing yarn pneumatically to e.g. a double twisting device includes a housing into which the yarn passes, and internally of which are provided two guide apertures, for guiding the yarn. The guide apertures are provided in two discs within the housing, one disc being pref. movable to cause a braking element to move laterally w.r.t the housing and block the guide apertures and so block further feeding of the yarn.
Patent DE-2602159-A1 (DE)
Inventor: GOECKE DIETER DR ING
IPC: H04Q3/545
Filed: 1976-01-21
Abstract: In order to be able to extend a telephone switching system in small stages with minimal preparation, a switching network comprises a plurality of switching sub-networks (A, B,... N) to which control sub-units (TA, TB,... TN) are individually assigned. In the sub-memories (UA) which are assigned to the non-duplicated control sub-units and which are similarly non-duplicated, switching states and switching commands are stored along with data describing the type, authorisation, class and the like of switching devices which are connected to the switching network inputs. Information and switching commands allocated to the connections can be stored in two central memories (ZS1, ZS2) which are assigned individually to two central control units (Z1, Z2) arranged adjacent to one another. The total cost of the memories is thus minimised. <IMAGE>
Patent DE-2603278-A1 (DE)
Title: Automatically focussing slide projector - has 2 sets of photocells monitoring light passing slide at sharp angle for slide or lens servo drive adjustment
Inventor: VOIGT GOTTFRIED
IPC: G03B21/53
Filed: 1976-01-29
Abstract: The automatic slide projector has two sets of photocells which monitor light passing through the slide at a sharp angle. They alter the slide position, or operate lens servo drive to obtain the sharpest focus. The user manually sets the focus for the first slide in a series and the system automatically corrects the focus for subsequent slides. A microswitch in the slide frame operates an inhibit mode if no slide is in the projection position to prevent the automatic focus control from hunting, and moving too far out of setting. The system compensates for different types of slides in the same series as well as heating effects during long projection.
Patent DE-2609130-A1 (DE)
Title: Weighing machine with spring and capacitive displacement transducer - produces current output without friction effects which after rectification drives microammeter display
Inventor: KNOTH KURT DIPL ING
IPC: G01G7/06
Filed: 1976-03-05
Abstract: The simple but accurate weighing machine uses a flat spring with a capacitive displacement transducer, and produces a.c. representative of the weight applied to the machine, and removes the friction effects common in such machines. A flat leaf spring (1), held fast at one end, has a weight applied to it via a table (5) and column (6). At the far end of the spring a capacitance displacement transducer consisting of two sets of interlocking plates (3, 4) is attached to the arrangement. This is electrically counted in the base emitter circuit of a transistor (T2) amplifier fed with an alternating signal from a generator via a suitable transformer. The transistor (T2) collector current, the amplitude of which depends on the capacitance transducer position, is transformed (U2), rectified (7) and fed to a microammeter (8).
Patent DE-2619195-A1 (DE)
Title: Thermal engine with internal combustion - has expansion high thermal loading cylinder head, exhaust valve control and compressor spool valve with no sealing rings
Inventor: TAUSEND ERICH
IPC: F02G1/00
Filed: 1976-04-30
Abstract: The thermal engine with internal combustion has an expansion cylinder head able to withstand very high thermal loading, an exhaust valve control opening during the lower third of the expansion piston stroke, and a simplified compressor spool valve connection with better flow cross-section. It does not require sealing rings on the inner compression piston seal location and has an improved inlet valve. The expansion cylinder outer sleeve (3) is conical with its smallest dia. at the heater plate (1a, 1b) and an axially moving seat attached to the regenerator ring (17). An axial bracing system is placed between the ring and the sleeve and another above the cylinder bush (4).
Patent DE-2619274-A1 (DE)
Title: Roadside or trackside noise screen wall - consists of concrete laid as lattice structure and filled with heaped soil material supporting plant growth
IPC: E02D29/02
Filed: 1976-04-30
Abstract: The noise screen wall is esp. suitable for providing protection from traffic noise along a road or other traffic route. It comprises a lattice structure made up from concrete, or other, prefabricated components (2, 3) laid lengthways and crossways. The hollow spaces in this are filled, wholly or partially, with a heaped material which is pref. suitable for plant growth. The prefabricated components are coupled together and/or interconnected, in at least a friction and/or form-locked way. There may be one or more watering ducts (5) for plant maintenance, pref. laid on the crown of the wall. This is both effectively sound-insulating and aesthetically attractive.
Patent DE-2623083-A1 (DE)
Title: Hydraulic binder for base courses in road building - consists of milled lava, fly ash and cement or lime
Inventor: HORST JOSEF
IPC: C04B28/22
Filed: 1976-05-22
Abstract: Homogeneous hydraulic binder consists of (A) an excitation agent, e.g. cement, Portland-, Blast furnace-, iron Portland-, or trass -cement, lime, fine lime, dolomite lime, white slaked lime or dolomite lime hydrate (see DIN 1060); (B) milled lava with pozzolana characteristics and min. Blaine fineness 5000 cm2/g and (C) fly ash, esp. obtd. from the electrostatic filters in power stations burning brown coal, and with latent hydraulic properties. The pref. mixts. contains 25-45%, esp. 30-40% (A); 35-55% esp. 43-50% (B) and 15-35% esp. 20-30% (C). The binders are pref. used for base courses, esp. under bituminous road layers; or for consolidating fine sand or earth not carrying very heavy loads. The new binder is slow to set so it remains workable for a long period of time, and the base courses can be subjected to further compaction if the required density is not obtd. in initial tests.
Patent DE-2625661-A1 (DE)
Title: Loading gate sealing system - has bellows on gate circumference connected to load moving through gate
Inventor: HUEBNER REINHARD DIPL ING
IPC: B65G69/00
Filed: 1976-06-08
Abstract: The folding bellows seal is used for sealing the space between the loading gate and the ends of the container passing through this gate. The seal rear end is held on the gate circumference, and its front end can be contacted with the container. The folding bellows (1) is supported by its front end (5) over one or more rollers (6) which can rotate about a horizontal axis and which swivel about a vertical axis. These rollers run on guide face (7). The upper end of the folding bellows is supported by stiff elements (8).
Patent DE-2628792-A1 (DE)
Title: Thyristor with main electrodes on first and fourth zone - has part of third zone on surface forming closed curve with opening, but not surrounding first zone
Inventor: BRUYNE PATRICK DE DIPL ING
IPC: H01L29/10
Filed: 1976-06-26
Abstract: The thyristor has four zones of alternating conductivity. The outer zones, carrying the main electrodes, form the emitter zones. The third zone of lowest doping forms with the second zone a forward blocking pn-junction and emerge on the first zone side on the semiconductor substrate surface. The surface part of the pn-junction can be exposed to light for the thyristor firing. The surface contains a highly doped zone of the first zone conductivity, coupled by a contact to the second zone. The part of the third zone (3) emerging on the surface (7) forms a closed curve (3') with at least one opening (8) which does not enclose the first zone (1). The highly doped zone (9) is formed within this opening.
Patent DE-2630093-A1 (DE)
Title: Manually operated multispeed gearbox - has free wheel incorporated with fourth gear wheel
Inventor: HEIDEMEYER PAULUS DIPL ING
IPC: B60K17/26
Filed: 1976-07-03
Abstract: The fourth gear output wheel (5) is fitted concentric to a ratchet free wheel (9) on the output shaft (9). The free wheel ratchets give a direct connection between the fourth gear wheel (5), and output shaft when the engine is pulling and disconnect the engine over run phases. The free wheel ratchets could engage with the driving shaft (3) in order to conserve space. Decreased exhaust emission results on over run.
Patent DE-2636801-A1 (DE)
Title: Foam mouldings of locally differentiated density - prepd. by selectively cooling the mould with liquid coolant
Inventor: KUTSCHERA KURT DIPL ING
IPC: B29C44/04
Filed: 1976-08-16
Abstract: Mfr. of foam mouldings having non-uniform apparent density within the moulding or in zones near their surface, comprises locally cooling the mould at those places where the mouldings are desired to have relatively greater density. This is achieved by adding a locally effective liq. coolant. Used for mfr. of foam mouldings whose mechanical strength is to be increased in selected zones, esp. near the surface of flanges or collars, without the need to use more moulding cpd. than for the other zones. The coolant is pref. liq. air or N2 or some other liq. having a low b.pt. Addn. of the coolant is controlled in such a fashion that the cooling at the interface of mould and foam attains its max. effectiveness at the moment of foam formation.