baber/WOPTO huggingface dataset:
Patent DE-2604548-A1 (DE)
Title: Olefin polymerisation catalyst prodn. - by impregnating a silica xerogel with aluminium alkoxide and chromium trioxide
Inventor: FRIELINGSDORF HANS DIPL ING DR
IPC: C08F10/00
Filed: 1976-02-06
Abstract: Prodn. of an olefin polymerisation catalyst comprises first loading a finely-divided xerogel of formula SiO2. m-Al2O3 (I) with an Al alkoxide of formula R'pAl(OR")3-p (IIe(I) has particle dia. 20-2000 um; pore vol. 0.7-2.6 cc/gand surface 150-600 m2/g. In the formulae m = 0-2, R' = 1-8C alkyul; R" = acyclic 1-8C alkyl or cyclic 5-8C alkyl; p = 0-2. The prod. is then loaded with CrO3 (or a cpd. converted to CrO3 in the next stage) by treating with an aq. soln. of a Cr cpd. then evaporating the solvent. The prod. is then heated at 600-1000 degrees C for 10-400 min. in a dry stream of gas contg. >10 vol.% O2. The finished catalyst contains, per 100 wt. pts. (I) as SiO2, 0.1-10 wt. pts. (IIe as Al and 0.3-10 wt.% Cr as CrO3. Used esp. for (co)polymerising 2-8c alpha-monoolefins, partic. ethylene. The catalyst can be readily modified to vary the props. of the polymer e.g. increasing the (IIecontent increases the density, melt index and G-modulus.
Patent DE-2611616-A1 (DE)
Title: Dispatch wrapper in form of letter envelope - has outwardly projecting thread in edge of closing flap for tearing open
Inventor: CLAASSEN JOHANNES PETER
IPC: B65D27/38
Filed: 1976-03-19
Abstract: The dispatch wrapper is esp. in the form of a letter envelope or a dispatch pocket and includes along at least one edge an auxiliary arrangement for tearing open the dispatch wrapper. The auxiliary arrangement consists of pulling tape (2) placed in the edge (14) of the dispatch wrapper. One end of the pulling tape (2) is attached to the edge (1g) and its other end (2a) and is projecting from the dispatch wrapper (1). The dispatch wrapper (1) is provided with a closing flap (1f) which forms the edge. (1g) in which the pulling tape (2) is positioned. The pulling tape (2) which consists of a thread from a special plastic material is attached along its whole length to the edge (1g).
Patent DE-2621590-A1 (DE)
Inventor: GUNJIMA TOMOKI
IPC: B01D61/48
Filed: 1976-05-14
Abstract: In an electrodialysis process for aqueous base-containing solutions the improvement which comprises using a cation-exchange membrane made of a copolymer of ethylene and an unsaturated carboxylic acid or a salt thereof having an ion-exchange capacity of 0.7 to 3 m equivalent/g (dry resin).
Patent DE-2621880-A1 (DE)
Title: Machine for applying narrow coloured lines - is for strip material and has cylinders with perforated end caps to apply liq.
Inventor: SMEJDA RICHARD K
IPC: D06B15/08
Filed: 1976-05-17
Abstract: The machine for applying narrow coloured lines on the strip (10) of material consists of a number of cylinders (1) mounted side by side on a shaft (9). The shaft (9) is mounted in V-blocks (11) which slide in vertical guides so that the cylinders (1) press on the surface of the strip (10) as it passes over the roller (14). The cylinders (1) are filled with coloured liquid which flows out through the perforated caps (4) and produces lines on the moving material (10). The liquid supply can be shut off by valves in each cylinder actuated by a common spindle (6). The end caps (5) are sealed by wedges (22) which are tightened by the screws (23).
Patent DE-2629577-A1 (DE)
Title: Electric heater for aquarium - has water-tight flexible heater mat forming support dimensioned to suit base
Inventor: KIPPER HORST
IPC: A01K63/06
Filed: 1976-07-01
Abstract: The heater for aquaria consists of an electrically heated under-layer for the aquarium. The under layer is such that it directly support the aquarium and in dimension is suited to the base surface of the aquarium. The under layer is a flexible, electrical heater mat in the form of a water-tight casing. The heating mat has a laterally projecting, tongue-type attachment to which an electrical cable is connected. Further, the heating mat has a precisely, previously computed heating output.
Patent DE-2631273-A1 (DE)
Title: Mechanically controlled waveguide phase shifter - has fixed short circuiting plate at waveguide end and metal plate rotatable about waveguide axis
Inventor: REITZIG RAFAEL DIPL ING DR
IPC: H01P1/18
Filed: 1976-07-12
Abstract: The waveguide supplies in series a phase controlled radiator group using a 3 db waveguide hybrid coupler whose coupling zone is inserted in two adjacent parallel waveguides. The waveguides operate on one side of the coupling zone as feeding and as returning waveguides, and a mechanically movable short-circuit is provided on the other side of the coupling zone, so that reflection phase of the 3 db hybrid coupler is controllable. A fixed short-circuiting plate (8, 9) is provided on the short-circuiting side of the two waveguides (10, 11) with a metal plate (12, 13) rotatable about the respective waveguides (10, 11) longitudinal axis between the coupling zone and the short-circuiting plate (8, 9). The metal plate (12, 13) dimension in axial direction determines the maximum phase swing.
Patent DE-2631777-A1 (DE)
Title: Non-return valve with ball closure member - has several parallel valve passages each contg. ball to reduce overall inertia
Inventor: DREIDEMIE EUGEN
IPC: F16K15/04
Filed: 1976-07-15
Abstract: The non-return valve has several valve passages each contg. a ball (2) closure member. The passages are arranged in parallel in a common housing and each take a part of the flow through the assembly. The valve is especially for large flow dias. e.g. diameters > 1.5. inch and avoids weight area problems associated with relatively large balls. The passages may be provided in two coaxial generally cylindrical components (1, 3). In one of the components the passages are widened to receive the respective balls. In the other component the ends of the passages define seat (4) for the balls.
Patent DE-2633122-A1 (DE)
Title: Two-for-one twisting spindle - has a sliding mechanism for the spool or the yarn guide shaft within the frame
Inventor: RUF JOSEF
IPC: D01H1/10
Filed: 1976-07-23
Abstract: The spindle of a two-for one twisting machine is located within the ballooning limit surrounding the spool to be wound. The yarn guide shaft, or the winding spool, is mounted in the frame so that it can slide, and it is linked to a sliding mechanism. The shaft supporting the winding spool has a threaded end section, lying outside the winding zone, to be engaged by a hand-operated claw mounted to the frame. A manual adjustment is provided in addition to the sliding mechanism to give the axial setting for the winding spool or the yarn guide shaft for winding. The yarn guide shaft is hollow and rotates freely on a driven shaft. By sliding the shaft or the winding spool, there is no need to move the frame so that the unit can be constructed and assembled simply and easily.
Patent DE-2634079-A1 (DE)
Title: Economy circuit for street lamps - consists of two lamp units with ballasts which can be connected in series with each other
Inventor: WAHLE WOLFGANG DIPL ING
IPC: H05B41/40
Filed: 1976-07-29
Abstract: The street lamp assembly has two or more lamp units. The lamp units are operated through a ballast ans they are connected as required. In order to obtain a more than two-step circuit, ballasts (V1, V2) can be connected in series with each other by the switches (U, E) of individual lamps (L1, L2). The two lamps (L1, L2) are connected to the AC power source (A1, A2) in parallel, and normally the switches (U, E) ar set so that the first ballast (V1) is in series with the first lamp (L1) and the second ballast (V2/ is in series with the second lamp (V2).
Patent DE-2636912-A1 (DE)
Title: Electricity meter display with tariff unit - has one counter permanently connected to meter rotor and other counter driven by electromagnetic stepping device (SW 23.1.78)
Inventor: VIEWEG GUNTHER DIPL PHYS
IPC: G01R11/63
Filed: 1976-08-17
Abstract: The meter has two drum counters one above the other, one of which displays the meter current reading, and the other displays the tariff device. The first counter is continuously connected through a gear transmission with the meter rotor, while the other is operated by an electromagnetic stepping device, controlled by a pulse generator converting rotow revolutions in pulses. The stepping device has an operating lever tripped by an electromagnetic release, and provided with a pawl driving a ratchet wheel on the first counter drum, as in 2629435. The operating leverl (12) is operated through a link drive (36) by a driver pin (35) and a switching element (11) in the form of a gear with inner toothing (30), interacting with the above ratchet wheel.
Patent DE-2645895-A1 (DE)
Title: Probe system for identifying blower working range - has parallel probe channels for duct pressure at blower rotor (SW 7.3.77)
Inventor: ROSLYNG OLE
IPC: F04D27/02
Filed: 1976-10-12
Abstract: Device for identifying the working of axial blowers within the working range. The blower is built into an air duct as an axial blower or compressor. Pressure is measured in a plane at right angles to blower axis directly down-stream of blades. The high pressure rise measured indicates entry into the working range. the entry into working range is rapidly and reliably indicated. The differential pressure is zero on steady state operation. The probes have two parallel channels (31, 32) in a common plug (33) fitted in the duct wall. One probe channel is orientated to measure static pressure on channel wall. The other channel is orientated in the direction of rotation of the blower rotor. The probe channel openings are screened by relatively short tube lengths.
Patent DE-2647007-A1 (DE)
Title: Tin recovery from lacquered tinned iron sheet scrap - by heating and leaching with hydrochloric acid and formalin
Inventor: STOJANOV IVAN JELJASKOV DIPL I
IPC: C22B25/06
Filed: 1976-10-18
Abstract: Tin is recovered from lacquered tinned iron sheet scrap by heating the scrap at 230-300 degrees C for 10-30 min. then leaching for 30-60 min. in a soln. contg. 120-240 g/l of HCl, 20-60 g/l of formalin and 0.001% of SbCl3, at 25-95 degrees C. The resulting SnCl2 soln. is diluted with a 3-5 fold amt. of water and contacted with a metal more electropositive than tin, such as Al (pref.) Fe or Zn. The degree of tin recovery is considerably increased compared with the known processes (by 30-40% in the case of one-side lacquered sheets, and by 90% in the case of two-side lacquered sheets). Cheap chemicals are used, AlCl3, obtained as a by product can be used as a coagulant.
Patent DE-2649149-A1 (DE)
Title: Stop for fastening element in curtain tracks - has threaded pin and nut with wider collar to adapt to any sized curtain track
IPC: A47H13/00
Filed: 1976-10-28
Abstract: The stop for the fastening elements in curtain tracks comprises a threaded pin (1) with a projection (2) which is narrower than the insert width (3) of the rail but is longer than the distance (5) between the walls (6) of the rail. The stop can then be inserted in all standard rails where it is secured by a wing nut (7) which is screwed onto the threaded pin and has a collar (15) which is wider than the insert width. The projection of the stop fits into the insert width of the rail whereupon the stop is rotated slightly until the projection abuts at least one of the walls. In this position the threaded pin can no longer rotate so that by rotating the wing nut further it is screwed onto the pin until the collar abuts the underneath of the rail and the two parts are firmly screwed together with the rail inbetween. A plate (8) with a hole (9) for the pin can be provided which has two resilient tongues with a constriction which define a socket for the fastening element, with the plate being wider than the insert width of the rail.
Patent DE-2649581-A1 (DE)
Title: Headlamp adjustment system with setting lever - has pivoted spirit level to indicate adjustment requirement
Inventor: BUCHLEITNER KONRAD
IPC: B60Q1/068
Filed: 1976-10-29
Abstract: The headlamp is pivoted to the body work at one point by a pivot (3) and connected by a pull wire (6) to a hand lever (9) at a second point (5). The hand lever (9) is formed as a toggle lever pivoted to the vehicle floor (10), with the second lever (9") sliding in a guide (14) fixed to a swinging lever (13) pivoted to the vehicle body work as in the main patent. The swinging lever carries a spirit level which is able to turn in a frame (23) fixed by a set screw (24'). The clamp screw is released when the vehicle is parked on a steep slope and the spirit level turned to give a level position. The level is then fixed by the set screw. After the vehicle has been loaded, the headlamp is corrected by the hand lever.
Patent DE-2654779-A1 (DE)
Title: Stackable sheet steel pallet - has baseplate segments detachable from each other and hinging between feet
Inventor: HELLER KARL HEINZ
IPC: B65D19/00
Filed: 1976-12-03
Abstract: The stackable pallet is of sheet steel or other metal, having a baseplate fixed to the corner feet and clear of the supporting surface. The baseplate comprises segments hinging between the feet (4) and detachably secured to each other (5a, 5b, 5c, 5d). These can be triangular, and joined together at their apexes, typically by means of portions bent down towards the supporting surface and a common fixing device (6). The edges of adjacent segments can be arranged to overlap. The design combines rigidity with ease of unloading of powdery, granular or viscous material.
Patent DE-2656053-A1 (DE)
Title: Crop chopping forage harvester - has transfer fingers mounted on endless transverse belt to deliver crop to chopper drum
Inventor: SCHAIBLE SIEGFRIED DIPL ING
IPC: A01F29/01
Filed: 1976-12-10
Abstract: The tractor-coupled fodder cutting machine has a pick-up device for the harvested material with an intermediate conveyor and a connecting cutting device. A conveyor blower is mounted downstream of the cutting device. The conveying direction of the intermediate conveyor (14) and the pick up (32) of the cutting device (16) is transverse to the direction of travel of the fodder cutting machine. The cutting device is arranged on the side of the intermediate conveyoer facing the tractor (10). The axis of rotation of feed blower (15) is horizontal and transverse to the machine's direction of travel.
Patent DE-2659731-A1 (DE)
Title: Ice prevention system for swimming bath sides - uses multiple rib hollow plastic plates forming air cushions
Inventor: MAISENHAELDER SIEGFRIED
IPC: E04H4/08
Filed: 1976-12-31
Abstract: The system prevents ice formation on the sides of open-air swimming baths, with consequent damage to concrete etc., using plastic plates mounted on the sides at the max. ice height expected. The plates are of the hollow multiple rib type, closed on all sides, thus forming an air cushion which also acts as an insulator. The plates can be produced by extrusion.
Patent DE-2704001-A1 (DE)
Title: Determn. of crystal thickness and temp. - uses single set of particle and electromagnetic waves in contactless measurement
Inventor: WORM ELMAR
IPC: G01B15/02
Filed: 1977-02-01
Abstract: A method of determining thickness and temp. of industrial material of periodic structure, esp. thin semiconducting material, is designed for accurate, non-destructive, and contactless measurement. Measurements are made using charged particle planar and axial channeling measurements. Measurements are made along at least one crystal axis for plane using electromagnetic waves for neutral particles. The achieved results are compared with a prepared scale or reference to five the temp. and the thickness of the substance under test.
Patent DE-2718968-A1 (DE)
Title: Reclining orthopaedic body support for spinal column - uses materials transparent to X=ray examination for photography without removing support
Inventor: WETZEL WERNER
IPC: A61F5/02
Filed: 1977-04-28
Abstract: The body support has three point contact with the body front and rear and is used for the correction and support of the spinal column. This is matched to the body shape with connecting straps and buckles. X-ray photographs can be taken at various angles without removing the support and the photographs are not affected by shading. The axillary connections are made of material which does not produce shadows on photograph for the X-ray intensity compatible for human treatment. The axillary connectors can be made from thermoplastic materials.
Patent DE-2719962-A1 (DE)
Title: Cup with heat retaining base - has base mass with ventilation openings incorporated in support face of thinner walled cup
Inventor: RIEDEL ERICH O ING GRAD
IPC: A47G19/22
Filed: 1977-05-04
Abstract: The cup which can keep drinks hot or cold, has a rim (11) around the bottom. This leaves a space for a mass (15) which serves as a heat store. This is a hollow body whose cavity is filled with a mass of high specific heat storage capacity, such as metal chips or metal granules. The actual base of the cup which encloses the mass, can be designed as a ventilation chamber so that air can flow in through ventilation openings (13). The hotter air heated by the mass can flow out through further holes (12) forming a mini air conditioning system about the cup which can have a thin hot air covering layer.
Patent DE-2725493-A1 (DE)
Title: Invalid chair with leg rest - has ratchet drive for swinging rest into desired position or lowering it to ground
Inventor: HUNDHAUSEN ECKHARD DIPL PHYS D
IPC: A61G5/12
Filed: 1977-06-06
Abstract: The invalid chair has a leg rest which can be swung up and down or sideways. The rest (6) is detachably secured to the frame (4) of the chair (1), and has a ratchet drive actuated by a single level. This enables it to be swung up into any desired inclined position by the invalid and locked there, and also lowered right down to the ground. The lever can be moved to a first position from a rest position, to swing the rest up through a predetermined angle, while movement into a second position releases the locking mechanism to allow lowering of the rest. The ratchet drive can have a rocking fork with head and prongs, and a pawl between the arms and protruding beyond them to engage with the teeth of a ratchet wheel on a hinge bolt.
Patent DE-2726668-A1 (DE)
Title: Fluid pipe cleaning system - has flushing head at reservoir outlet admitting cleaning fluid when propellant pressure ceases
Inventor: AKKERMANS CORNELIS GERARDUS
IPC: B08B9/02
Filed: 1977-06-14
Abstract: The system cleans a pipe leading from a reservoir outlet to a tap, the fluid being discharged from the reservoir by a propellant, being typically for a beer pipe along which the beer is forced by carbonic oxide gas. A flushing head (12) is mounted on the reservoir (11) outlet, admitting cleaning fluid to the pipe as soon as pressure from the propellant ceases. Pressure can be shut off by a 3-2 way valve in the pipe from the propellant bottle (10) typically solenoid-operated under the control of a switch near the tap (18, 9). Mains water can be used as the cleaning fluid, at roughly the same pressure as the propellant.
Patent DE-2727647-A1 (DE)
Title: Horticultural frost protection open air heater - has fuel solenoid valve and flame monitor with automatic control system
IPC: F23N5/24
Filed: 1977-06-20
Abstract: The burner for open air heating, e.g. to protect crops from frost is operated with gas or with fuel oil, without pollution. The burners can be ignited, controlled and monitored and switched off automatically. This facilitates operation in wine growing areas with difficult access on mountain slopes. Fuel is supplied under pressure for actuating a pneumatic control system (13). A piston actuated rack (22) opens a safety valve (14), kept open until the fuel is ignited by igniter (15). A thermocouple (37) projects into the flame above the burner nozzle (2), and actuates solenoid valve kept open during combustion. The safety valve (14) acts automatically as flame monitor and automatically closes the solenoid valve by a spring (36) when the flame (5) is extinguished.
Patent DE-2728009-A1 (DE)
Title: Mono-ski with automatic release binding - has spring loaded balls which engage recesses in heel of boot
Inventor: KITTMANN ROLAND
IPC: A63C10/12
Filed: 1977-06-22
Abstract: Safety binding automatically releases the ski-boot on receiving an excessive shock and consists of two blocks(1, 2) with flat extensions. Each block has an axial hole which contains a ball(3, 4) loaded by springs(7, 8) so that part of the ball projects from the hole. The blocks(1, 2) are fixed to the mono-ski by screws which pass through slotted holes to allow for positional adjustment. The ski-boot has two recesses in the back of the heel which engage the balls(3, 4) and hold the boot onto the ski. The force of the spring(7, 8) can be adjusted by screwed plugs(11, 12) which abut against the ends of the springs.
Patent DE-2745855-A1 (DE)
Title: Manually carried suitcase for commercial display - has folding part for display and storage section collapsed for transport
Inventor: SCHRAHE SIEGFRIED
IPC: A45C7/00
Filed: 1977-10-12
Abstract: The suitcase is used for carrying patterns for commercial and sale purposes. This suitcase can be used also as display system and it can be used hence universally as a display box, counter display or wall panel. The suitcase (5) has a rectangular envelope (6) which can be folded to open. This envelope (6) accommodates a frame (7) around the panel (8) and hollow chamber formed is used for carrying the contents. The frame (7) can be fitted at one end of this expanding envelope (6). This envelope can carry also a bag of transparent material held by firm solid walls.
Patent DE-2753263-A1 (DE)
Title: Ultraviolet ray sterilisation for hydraulic fluids - in inclined tray with deflecting ribs and baffle plates
Inventor: BELINO PETER VON DIPL ING
IPC: C02F1/32
Filed: 1977-11-30
Abstract: Aq. emulsions with a water content of 80-99% which are used as the working medium in hydraulic systems are sterilised by ultraviolet radiation. During the irradiation, the fluid runs down an inclined tray with vertical ribs across its bottom and, offset relative to them, baffles with an adjustable gap at the bottom. This kills the microorganisms which cause slime and flocks, leading to the formation of corrosive acids and gases.
Patent DE-2807564-A1 (DE)
Title: Electroless gold plating a nickel plated workpiece - to provide a nickel-gold alloy layer
Inventor: VANAGLASH JUN JOHN J
IPC: C23C18/48
Filed: 1978-02-22
Abstract: Plating process comprises treating a workpiece having a nickel base finish (>=85% Ni) in a bath contg. a buffer and a plating source of >=1 gold compounds to provide a nickel-gold alloy layer of mol ratio 1:1 to 6:1, the nickel being provided by the nickel-base finish. The gold base finish exhibits the physical characteristics of pure gold plating except for resistance to salt spray and nitric acid and has high corrosion and anti-abrasion qualities. If pure nickel is used as the base finish, a high temp. stable (>=450 degrees C) gold alloy is provided but is phosphorus is present in the Ni layer, the gold alloy deteriorates at >300 degrees C. The gold base finish is uniform, strongly adherent to the base and at least 15 mu ins. thick.
Patent DE-2811968-A1 (DE)
Title: Surface finishing of rolling mill support rollers - by processing together on mandrel after eliminating radial clearance between bearings
Inventor: KUEFNER WALTER ING GRAD
IPC: B24B41/06
Filed: 1978-03-18
Abstract: The process is for the surfaces of support- or load bearing rollers, containing roller bearings, which act together when mounted. Associated rollers are positioned assembled, next to each other on a mandrel. The radial clearance between the bearings is removed by prestressing and the surfaces of the pulleys are then processed together. The mandrel is expanded, to remove the radial clearance. For expansion, a pressure medium is pressed into a hollow space within the mandrel, via an aperture which is sealed by a valve.