baber/WOPTO huggingface dataset:
Patent DE-2460927-A1 (DE)
Title: Detoxifying cyanide-contg process water - from blast furnace gas scrubbing by 2-step treatment with methanol-free formaldehyde
Inventor: DENNE ALFRED
IPC: C02F9/00
Filed: 1974-12-21
Abstract: Treatment of cyanide-contg. recycle- or continuous flow-process water from blast furnace gas purification takes place by admixing with MeOH-free HCHO, or other aldehyde, after correcting to pH 8-10 if necessary. Addn. takes place in 2 positions: (1) HCHO addn. for stoichiometric conversation of 20-70% of free cyanide in process water, before gravity separator, in order to achieve sufficient flocculation adn to accelerate the sedimentation of the suspended solids present in process water, and (2) HCHO addn. in mainly stoichiometric mol ratio HCHO; cyanide = 1 ; 1, for the remaining free and complex cyanides present in process water, afte gravity separator, to ppte. the complex-bonded heavy metals, which are subsequently separated.
Patent DE-2461755-A1 (DE)
Title: Air jet loom weft insertion - has nozzles along weft flight channel
Inventor: SCHEFFEL WALTER
IPC: D03D47/00
Filed: 1974-12-28
Abstract: Improved weft insertion of an air jet loom. Nozzles are arranged along the width of the shed and a weft guide channel is formed from discs or segments which protrude into the shed. The guide channel has a slot through which the weft can leave the guide after being carreid into the shed. From the direction within the weft guide channel oblique to the weft flight path which leads away from the weft outlet slots. Reduction in the number of weft insertion faults by better control of the jet stream.
Patent DE-2501519-A1 (DE)
Title: Acoustic signal arrgmt. indicating brake wear - incorporates spring strip which is compressed between two brake plates
Inventor: KRONIGER WILHELM
IPC: F16D66/02
Filed: 1975-01-16
Abstract: The arrangement consists of a brake disc, at either side of which, two brake plates with brake pads are mounted. The two brake plates are mounted on a shaft and are pushed towards one another against the brake disc (1). A 'U' shaped leaf spring (8) is mounted on the same shaft as the brake plates. A spring strip (10) is mounted crosswise on the leaf spring in such a way that the ends of the strips engage with the brake plates. When the brake plates are moved closer together, due to wear of the brake pads, the spring strip will be squashed between the plates and buckle. Due to this buckling, the leaf spring will also be deformed. The end of the leaf spring is shaped to form a contact which engages with parts on the brake disc, when the strip buckles.
Patent DE-2514013-A1 (DE)
Title: Radiation sensitive semiconductor element - has tunnel zone surrounded by semiconductor layers as wave guide for impinging radiation
Inventor: RUSSER PETER DR ING
IPC: H01L31/0232
Filed: 1975-03-29
Abstract: The radiation sensitive semiconductor element, such as a photodiode, has a body consisting of differently doped semiconductor layers which enclose a tunnel zone in which can be induced channel junctions of charge carrier by impinging radiation. The semiconductor zones form a waveguide for the impinging radiation. The tunnel zone (1) is preferably formed by a thin pn-barrier layer between two differently doped semiconductor layers (2, 4) with a high refractive index than that of the adjacent semiconductor layers (3, 5). The thickness of the pn-barrier layer has typically a value of 100 to 150 deg.Angstrom. The tunnel zone may be formed as a thin dielectric film between the differently doped layers.
Patent DE-2515422-A1 (DE)
Title: Alpha, beta-unsatd alcohol prepn - by hydrogenating unsatd carbonyl cpds in presence of cadmium metal and or cadmium salt catalysts
Inventor: PETRO JOZSEF DR
IPC: B01J31/04
Filed: 1975-04-09
Abstract: Prepn. of alpha,beta-unsatd. alcohols of formula: R1R2C=CR3-CHOHR4 (I) where R1 is H, 1-4C alkyl or opt. substd. Ph, and R2, R3 and R4 are H or 1-4C alkyl) takes place by hydrogenating carbonyl cpds. having formula: R1R2C=CR3-CR4O, (II), at 80-200 degrees C, under 20-80 atmos. press., in presence of 1-90 wt. % finely divided Cd metal and/or 1 or more finely divided Cd salts as catalyst/s. (I) are obtd. selectively in high yields; catalyst need not be selectively poisoned; catalysts are easily available; and process id economical and catalyst can be re-used or re-generated.
Patent DE-2527366-A1 (DE)
Title: Programmed automatic workpiece handling robot - has fork with smooth L-shaped teeth, with safety stirrup above workpiece
Inventor: GILLHAUS HORST ING GRAD
IPC: B25J15/00
Filed: 1975-06-19
Abstract: A grab for picking up individual cylindrical workpieces, incorporated in a programmed automatic handling unit acting as an industrial robot. The grab is a fork (15) with prongs (17, 18) which enclose a parabola (19) corresponding in size to the diameter of the workpiece to be handled. The symmetry axis of the parabola is vertical to a horizontally located swivel point of the tilting fork (15). The fork teeth (17, 18) are made of smooth material winth L-shaped profiles, the horizontal lower arms of which are directed towards each other. Over the symmetry axis of the parabola, and at a distance from the workpiece, is a safety stirrup.
Patent DE-2529952-A1 (DE)
Title: Nickel base metal ceramic sealing material - consisting of nickel silica boron nitride
Inventor: SILAEV ALEKSANDR FEDOROVITSCH
IPC: C22C32/00
Filed: 1975-07-04
Abstract: A heat resistance sealing material consists of 0.5-8 wt.% SiO2, 1-10 wt.% BN and balance Ni. As sintered plates, rings or bushes for gas turbine rotary shrouds. The material has a higher heat resistance, improved thermal stability, heat conductivity and min. wearing of working parts such as turbine blades. The material is effective in gas turbines operating up to 3000 hrs at a gas flow temp. =1000 degrees C or up to 500 hrs. at =1100 degrees C.
Patent DE-2536242-A1 (DE)
Title: Gear type hydraulic pump or motor - has end plate sealing strips in grooves in bearing plates
Inventor: LAUMONT ROGER
IPC: F04C15/00
Filed: 1975-08-14
Abstract: The machine has two meshing gear wheels on parallel shafts (12, 13) in a cylindrical casing. The shafts are carried in bearings (20) in bearing blocks (8) on both sides of the gears. The casing is closed by end plates screwed to the cylindrical body which press-on the outside of the bearing blocks. Each bearing block has grooves (23, 231, 23a, 24, 241, 24a) on the face which presses against the end plate. Sealing strips are inserted in these grooves and separate the end face of the end plate into various zones. Outer zones (27, 27a) are in communication with the inlet and discharge connections and end zones (28, 28a) are connected by channels (29) with the working spaces between the gear teeth. An inner zone (30) is similarly connected by channels (21) with the working spaces.
Patent DE-2536379-A1 (DE)
Title: Butt welding large steel plates for ships - using local heating of plates at end of seam to prevent hot tears
Inventor: JOHANSSON BERTIL GOERAN
IPC: B23K9/00
Filed: 1975-08-14
Abstract: Steel plates are joined by butt welding, and force is exerted on the plates near the end of the seam to press the joint surfaces together. The novelty is that the force is created by thermal expansion of the plates, produced by local heating of the two plates at a distance from the seam and on both sides of the plates. The local heating is pref. started before the last part of the seam is reached in two well defined areas subjected to a temp. rise of:- T12/(S/h)=113.6-6.072v + 0.08676v2 - 0.0001326v3; where S is the welding power in kW; h is the plate thickness in mm; and v is the welding speed in mm/second. Used e.g. for the submerged arc welding of large ship hulls where plates 25 x 3 metres are welded into panels up to 25 x 25 metres in size. Avoids the occurrence of hot tears near the end of the welded seam, and/or a redn. in toughness to below the specified value for the weld.
Patent DE-2538034-A1 (DE)
Title: Foot pedal therapeutic gymnastic appts. - has pedals coupled to provide rolling action and brake when feet are removed
Inventor: REESE WILHELM
IPC: A61H1/02
Filed: 1975-08-27
Abstract: The Therapeutic gymnastic apparatus comprising a foot pedal the upper part (7) of which is coupled over a hinge (b) to an adjustable drive rod (13) and can thus be moved up and down exerting feed and toes. The force transmitted over the trust rod (13) and pedals (11) has a massaging effect on the leg muscles and joints. The force can be adjusted by altering screw coupling (3) Pedal brakes (12) come into action as the lost pressure as the feed leave the pedals, rather than during pedalling. The apparatus can be used in an ordinary chair rather than an uncomfortable saddle and the pedal action copiers the rolling motion of a ship rather than turning horizontally about its axis.
Patent DE-2543659-A1 (DE)
Title: Blast furnace tuyere with calorized working surfaces - which permit higher wind temp. and reduce coke consumption
Inventor: SHIINO TOSHIHIRO
IPC: C21B7/16
Filed: 1975-09-30
Abstract: The bore and outside surface of the tuyere are coated by calorizing and the inside surfaces of the cooling jacket may also be calorized if required. The coatings are pref. obtd. by the diffusion of a mixt. of Al and active Al2O3 at 800 degrees C, to form a coating of 0.5-5 mm on the inner and outer surfaces of the tuyere, and 0.1-1 mm on the inside surfaces of the cooling jacket. Prevents the deposition of molten metal and/or slag on the surface of the tuyere and also the erosion of the cooling jacket due to the high velocity of the cooling water. The result is an increase in the working life of the tuyere.
Patent DE-2548274-A1 (DE)
Title: Bearing race chipless forming - uses blanks with plain inner surface shaped outer surface and profile roller acting from inside
Inventor: LAPIN VLADIMIR V
IPC: B21H1/12
Filed: 1975-10-28
Abstract: The chipless forming of bearing races uses blanks with plain ineer surface, but with the outer surface of approximately the same shape as the expected inner surface of the finished product. The formin tools are chosen in such manner that, under pressure, applied from outside, the inner surface is given the desired shape. Preferably the rolled blank is produced in a roller mill with rotary rolls adjustable in radial direction. The outer roll provides the inner surface shape, while the outer surface is shaped by the inner roll so that only relatively small deformation force is needed for polishing.
Patent DE-2549083-A1 (DE)
Title: Cathode for fuel cells driven by oxygen in acid electrolyte - using catalyst which includes iron phthalocyanine polymers
Inventor: MEIER HANS PROF DR
IPC: C25B11/06
Filed: 1975-11-03
Abstract: Linear and flat-linked iron phthalocyanine polymers, with high conductivity, catalytic activity and acid resistance, are used as active catalysts on an activated carbon carrier, which is also coated with a carbon powder provided with hydrophobic basic surface groups; the catalyst interacts with the carbon powder. The polymers may also be cobalt phthalocyanines or a mixt. or iron- and cobalt-phthalocyanines. Phthalocyanine polymers contg. two or more other metals per macromolecule may also be used. The prods. are cathodes for fuel cells driven using oxygen or air in acid electrolyte solns. The cathodes contain no platinum, which is very expensive, but have a long working life.
Patent DE-2551210-A1 (DE)
Title: Optical cable with multilayer plastic sheath - with optical fibres surrounded by casing with two layers of different plastics
Inventor: OESTREICH ULRICH DIPL ING
IPC: G02B6/44
Filed: 1975-11-12
Abstract: Optical cable comprises a core contg. optical transmission elements, and a surrounding multi-layer plastic sheath with an outer layer of PVC. The transmission elements consist of an optical fibre, surrounded by a protective casing of which the inside dia. is >=30% greater by the outside dia. of the fibre. The casing is made of two layers of plastics with different mechanical properties together forming a casing which is resistant to mechanical stresses. The inner layer has a lower coefft. of friction than the fibre. Beneath the outer layer of the PVC sheath is a layer of thermoplastic polyurethane, and between these two layers and between the core and polyurethane layer is fabric consisting of threads or rovings of an aromatic polyamide. Pref. the inner layer of the casing is made of polystyrene or a fluoropolymer, and the outer layer is made of an aromatic polyamide, polyterephthalate, polypropylene or polyethylene.
Patent DE-2554240-A1 (DE)
Title: Expansion packer for bore holes - has rubber sleeve expanded by compressed air around mandrel, attached to packer housing
Inventor: HEYBERGER WERNER DIPL ING
IPC: E21B33/127
Filed: 1975-12-03
Abstract: Expansion packer for blocking and sealing bore holes includes a central mandrel and a tubular rubber sleeve positioned round the mandrel. The tubular rubber sleeve is at both ends attached to the packer housing and is radially expandable by compressed air. At least one end of the tubular rubber sleeve (6) has reinforcing strips (18) of a flexible and tension resisting material circumferentially spaced and attached at one end to the tubular rubber sleeve (6) and at the other end to the packer housing (3). The reinforcing strips (18) are positioned on the outside of the tubular rubber sleeve (6) and are made from an elastic material such as spring steel. The outer surface of the reinforcing strips (18) is rough and the strips are attached to the tubular rubber sleeve (6) by gluing.
Patent DE-2556463-A1 (DE)
Title: Electromagnetic impulse driven counting mechanism - has five digit readout with mechanical reset facility
Inventor: SATO SUSUMU
IPC: G06M1/02
Filed: 1975-12-15
Abstract: The electromagnetic counter is housed in a protective case of Nylon or Acrylon itrile-Butadiene-Styrene (ABS). The indicating device consists of five numbered discs (20) (21). Four of the five discs have a toothed edge at one face (20c) which engages with a toothed wheel (26). On the other face of the discs are heart-shaped cams (20b). The numbered disc on the right hand side of the row - the unit indicator - has a number of pegs around the outer edge. These engage with a Y-shaped yoke escapement mechanism. This is driven by a linkage connected to the electromagnet solenoid 74). The counter has a reset facility operated by a knob projecting from the left front face of the case.
Patent DE-2559335-A1 (DE)
Title: Finely corrugated cardboard blank for model building - has tab and slot corner connections with printed brick surface and plastics seat
IPC: A63H/
Filed: 1975-12-31
Abstract: The building set for making cardboard models of houses is made from finely corrugated cardboard. A single blank provided with fold lines is used to make up the four walls of a building. Fixing tabs for the application of adhesive are located at the corner where the walls are joined. A similar blank of cardboard is used for the roof. The external sides of the cardboard blanks are printed and embossed so that they display features such as a brick wall or a tiled roof. A moulded plastic sheet provides the foundation for the building. It is slotted to locate the four walls of the cardboard model when assembled.
Patent DE-2600897-A1 (DE)
Title: Well filter with slotted pipe - using laser beams to cut wedge shaped slots
Inventor: SUMPF HERBERT
IPC: B01D29/11
Filed: 1976-01-12
Abstract: Slots are formed in a well filter by moving the filter pipe relative to a laser beam directed onto it. The motion is such that slots are formed either along the pipe axis, around its circumference or in a spiral along it. The laser beam traverses the pipe. By moving the pipe along its axis, longitudinal slots are formed, by rotating it circumferential slots are formed to obtain spiral slots, rotation and motion along the axis are combined. In order to produce V notch cross section in the slots, directed inwards, two laser beams are used. The filter pipes are for use in drawing water out of bore hole wells to prevent sand entrainment. Various types are possible including spirally wound wire or plastic plates. However these are easily damaged during insertion into the well and are expensive to produce. The filter and mfg. process are simple and cheap and the final product quite robust. The wedge shaped slots prevent sand particles becoming trapped in them.
Patent DE-2607029-A1 (DE)
Title: Recovery of boric acid from aq. solns. contg. organic cpds. - by burning and scrubbing the combustion gases with water to remove oxides of boron
Inventor: HELLER KARL-HEINZ DIPL CHEM DR
IPC: C02F9/00
Filed: 1976-02-20
Abstract: Process for recovering boric acid from aq. solns. contg. boron cpds. and organic materials comprises (1) burning the soln. in the known way, opt. using a supplementary combustible material; (2) sepg. the resulting boron oxides from the combustion gases by scrubbing and (3) if necessary, sepg. boric acid from the resulting soln. Process is esp. useful for recovering boric acid from mother liquors formed during the working up of reaction streams resulting from the oxidn. of paraffins e.g. cyclohexane in the presence of boron catalysts. Process reduces losses of boron from the system, thus making the process more economical and giving reduced environmental pollution.
Patent DE-2618780-A1 (DE)
Title: Quick change drill chuck for machine tool - has releasable coupling to allow facing operation on workpiece without removing drill
Inventor: LEMMERT WALDEMAR
IPC: B23B31/00
Filed: 1976-04-29
Abstract: The quick change drill chuck consists of an outer housing (2) which secures the inner housing (8) by a snap action. The inner housing (8) carries the drill. The outer housing (2) is fitted in the extension (3) by the shank (22) and the toothed coupling (17). When the hole has been drilled in the workpiece, the end face is machined by a turning tool. To permit the tip of the tool to remove burrs from the edge of the hole, the coupling is released by the bolt (18) and the drill rotated through a small angle. This enables the tip of the tool to penetrate into the flute spaces of the drill and machine the edge of the hole.
Patent DE-2618878-A1 (DE)
Title: Self propelling heavy load transporter - has vehicle and load raised by compensating rocker to change direction
Inventor: KLASSEN OTTO ING GRAD
IPC: B62D61/10
Filed: 1976-04-29
Abstract: The self propelling transporter has three pairs of road wheels (1) arranged on both sides of the verticle and a seventh and eighth pair at the vehicle centre. The weight is compensated by a compensator rocker (4) on the carrier frame (5) and two swinging arms (3) on each side. The vehicle drives under the load, and the lifting plate is raised by four hydraulic rams (6) up to the load. The entire vehicle is then raised by the hydraulic rams. Two support cylinders (7) press the counter rotating centre wheels on to the ground surface to pivot the vehicle and bring about a change of direction. The support wheels (7) then draw the centre wheel in and the vehicle is lowered to the ground by the four hydraulic rams (6).
Patent DE-2637258-A1 (DE)
Title: Manually adjustable electromagnetically operated liq. valve - has tubular sprung socket for hand operation surrounding solenoid body
Inventor: GEIMER JOSEF
IPC: F16K31/11
Filed: 1976-08-19
Abstract: The outflow fitting for liqs, operates the opening and closure stroke without manual grip control, using magnet valves and hand-operated twist knob to adjust the through-flow cross-section. A valve membrane (33) is activated by the magnet valve (5) change bolt (20). A tubular socket (31) encloses the chane bolt (20) and its spring (21), having a thread (32) screwed on to its face side to engage with the twist knob and a lengthways slot (36). In the slot a projection (37), formed out of the sealing tube (34) encompassing the tubular socket (31), slides. The tubular socket (31) is provided at its end engaging over the magnet change bolt (20), with an inwardly projecting flange edge (38).
Patent DE-2639147-A1 (DE)
Title: Heavy duty windscreen wiper - has wide profile scrubbing blade beside normal blade and mounted by adaptor head clipped to arm
Inventor: FELLER GUENTER
IPC: B60S1/28
Filed: 1976-08-31
Abstract: A wide profile wiper blade is mounted beside the conventional wiper blade to remove stubborn dirt from the glass, with the conventional wiper blade to clear the loosened debris. The extra blade is covered with a light abrasive film which is replaceable when worn. Additional effect is provided by plastic scraper strips on each side. The additional wiper blade can be fitted to any existing wiper blade by an adapted head clipped to the end of the wiper arm and having a double grip to secure both blades.
Patent DE-2641237-A1 (DE)
Title: Mine monorail train brake trolley - has powered swivelling clamping shoes mounted in pairs and engaging rail at acute angle
IPC: B61H9/02
Filed: 1976-09-14
Abstract: The brake trolley is for a powered train of wagons travelling on a monorail suspension track running-rail, in a mine. Its clamping mechanism has clamping shoes working against the I-shaped rail. These are automatically engaging clamping shoes (3), mounted in pairs on both sides of the running-rail (2), and/or in alternating mountings one behind the other, so as to swivel about vertical and/or horizontal bearing axes (4). Their angle of engagement when pressed against the I-stem (5) and/or one of the I-flanges (6) is less than 90 deg. in the direction of travel.
Patent DE-2641662-A1 (DE)
Title: Acrylated norbornane modified unsaturated polyester - esp. useful as quick drying UV curing printing ink binder
Inventor: WAGNER REINHARD DIPL CHEM DR
IPC: C08F299/04
Filed: 1976-09-16
Abstract: Unsatd. polyester based binders are made by (1) in a first stage, reacting (a) >=1 single olefinically unsatd. dicarboxylic acid which is free from polymerisable aliphatic multiple bonds; (I); (b) >=1 polyhydric alcohol (II) and (c) >=1 polycyclic norbornane ring cpd. (III) with >=1 functional COOH, OH or amino gp., and (2) in a second stage, reacting the prod. with (d) >=1 condensable acrylic cpd. (IV). The modified acrylated polyesters are esp. useful as binders for UV-curable printing inks. The norbornane ring modification gives prods. with improved processability and improved storage stability in pigmented form. The binders have good pigment wetting characteristics, fast cure times and low viscosity and thus give fast drying high gloss prints with freedom from 'picking' (sticking of paper to the printing rollers).
Patent DE-2643224-A1 (DE)
Title: Twin flange shaft coupling - has spring or rubber flange intermediary link transmission units
Inventor: BUEHRING HANS JOACHIM
IPC: F16D3/60
Filed: 1976-09-25
Abstract: Rotary elastic shaft coupling has two flanges, effectively connected to each other, and firmly attached to the shaft ends. To the flanges (3, 4) articulated connected transmission links (5) are fitted, and between the flanges (3, 4) a flexible spring (7) is arranged. At least one flange (3 or 4) is axially displaceable on a shaft (1 or 2) the flanges (3, 4) being disc shaped, and the transmission links (5) attached to them by radially arranged screws (6). Alternatively, the transmission units can be rods, fitted to the flanges (3, 4) with ball heads. The rods in this case are adjustable as to length. The flexible body between the flanges (3, 4) can be a pressure spring (7) or a rubber component.
Patent DE-2645254-A1 (DE)
Title: Spinning or twisting whorl radial bearing - supported by resilient cast aluminium or alloy sleeve with collars supporting bearing and connecting sleeve to housing
Inventor: BRAXMEIER HANS ING GRAD
IPC: D01H7/04
Filed: 1976-10-07
Abstract: Spinning or twisting whorl has an upper radial bearing supported by a resilient sleeve which is carried by the whorl housing. The sleeve is made of metallic material having a modulus of elasticity is not >104 kg per sq. mm. Sleeve has the required service life expentancy, natural frequency response, is free of plastic deformation and does not require elaborate mfg. processing steps.