baber/WOPTO huggingface dataset:
Patent DE-2700167-A1 (DE)
Title: Transport of hydrogen cyanide - in the form of a reversible reaction product
Inventor: GROLIG JOHANN DR
IPC: C01C3/02
Filed: 1977-01-04
Abstract: HCN is transported from point A to point B by first reacting the HCN with a reactant X to form a cpd. Y at point A, then transporting the cpd. Y to point B, and then converting cpd. Y back to HCN and reactant X at point B. The process is esp. useful for transporting by-produced HCN, e.g. from an acrylonitrile plant, to a plant where it is used as a raw material, e.g. for producing CNCl, cyanuric chloride, amino acids or methacrylates. The hazards involved in transporting highly toxic HCN, e.g. in tankers, can be avoided by converting it into a relatively nontoxic cpd. Y. In an example, HCN is reacted with acetone to form alpha-hydroxyisobutyronitrile, which is then cleaved with NaOH.
Patent DE-2705199-A1 (DE)
Title: Boot support for long distance ski - has sloping swivel plate attached by inverted U=shaped plate incorporating hinge
Inventor: STOELZLE FRITZ
IPC: A63C9/20
Filed: 1977-02-08
Abstract: An intermediate plate (4) to support the boot on the ski for long distance skiing, is supported by a base plate (1) attached by screws (2) to the top face of the ski, so that it can tilt. The intermediate plate has an inverted U-shaped plate (6) underneath which fits between the upturned arms (6') of the base plate, with a spindle passing through, acting as a hinge. The front edge (7) is turned down to rest on the surface of the ski. An alternative design has an inverted U-shaped plate underneath with longer arms (6) so that it can be fastened directly to the sides of the ski by hinge pins, but without the intermediate plate.
Patent DE-2707759-A1 (DE)
Title: Refining molten non-ferrous metals, such as copper - using a stream of reaction gas surrounded by combustion gas which is blown onto melt
Inventor: WUTH WOLFGANG PROF DR ING
IPC: C22B9/05
Filed: 1977-02-21
Abstract: Reaction gas and combustion gas are blown onto the surface of a melt for the simultaneous optimum transfer of substances and heat. A single lance head is used with a central nozzle supplying reaction gas; and located concentrically around the nozzle are several nozzles (I) supplying gas combustion at a different pressure and conc. Combustion gas streams diverge from reaction stream without any mixing, but due to the angle of the nozzles, (I), the gas streams flow in two layers into a common impact zone on the surface of the melt. The angle of nozzles (I) is pref. 1.5-2.5 times the free spreading of reaction gas, esp. using angles in two planes parallel with the lance axis. Central nozzle is pref. a Laval nozzle. Method is e.g. for the redn. of molten copper contg. oxygen; or the refining of Cu or Zn to remove volatile impurities such as Pb or Bi.
Patent DE-2725377-A1 (DE)
Title: Reagent for determn. of calcium, esp. in serum - contains murexide and mixt. of tri:ethanolamine and mono-hydric lower alcohol as solvent
Inventor: FRIED RUDOLF DIPL CHEM DR
IPC: G01N33/84
Filed: 1977-06-04
Abstract: Reagent for the determn. of calcium by formation of a Camurexide complex contains 50-80 wt.% of triethanolamine (II) and 50-20% of a monohydric lower alcohol as solvent for the nurexide (I) (ammonium purpurate). Pref. the reagent contains 0.02-0.05 wt.% (I).
Patent DE-2725445-A1 (DE)
Title: Thermoplastics foam drinking beakers for vending machines - by ultrasonically welding together a preform of a flanged bottom portion and a top ring to give a deep rimmed cup
Inventor: MANTEI DIETER
IPC: B29C65/00
Filed: 1977-06-04
Abstract: The beakers have a profiled rim. A breaker-shaped preform with flanged rim and a pre-formed profiled ring of a thermoplastics that can be welded to the foam material are charged to an ultrasonic welding installation and pressed under 10 bar, on an anvil, using an axially moving sonotrode. Ultrasonics is applied for 0.2-4.0 sec. and beaker preform and ring are welded together and suitably profiled by a further, adjustable, advance stroke of the sonotrode whilst the flange of the beaker is compacted to a density of 0.60-1.05 g/cc. Beakers with relatively high depth:dia. ratio can be produced i.e. the prod. is of more pleasing appearance than prior-art, rather squat, cups. The moulding is free of "flash" at the rim where a user's lips come into contact with it.
Patent DE-2732880-A1 (DE)
Inventor: SCHORI WALTER
IPC: G09F7/00
Filed: 1977-07-21
Abstract: The sign which can be assembled has an element as a panel (11) with rails (12) which run parallel to its longitudinal edges, are outwardly angled off and set back with respect to the panel edges. On the opposite side of the panel (11) to the rails (12) the panel has parallel rails (14) which form a laterally, outwardly open C and permit panels (11) lying parallel to one another to be connected to one another by inserting an I-shaped element (20) into the C-rails (14). Each C-rail (14) of the panel (11) is followed by at least one inwardly open U-rail (15) for the purpose of inserting a strip, preferably a label strip. Each C-rail (14) of the panel (11) is followed by two U-rails (15), of which the U-rail nearer to the panel is provided for inserting a label strip and the U-rail further from the panel is provided for inserting a cover strip. The U-profile element (22) to be facing the panels (11) is supplemented on its outside by a C-profile. Said sign can be assembled from a kit of individual elements to form large signs, the individual elements being made at the factory and it being possible for unskilled workers to put them together without any difficulty either in the factory or at the site of use. <IMAGE>
Patent DE-2733485-A1 (DE)
Title: Adjustable seat for motor vehicles - has reversible drive motor and lock release simultaneously with movement of control lever which is limited by switching element
Inventor: WERNER PAUL
IPC: B60N2/24
Filed: 1977-07-25
Abstract: The vehicle seat has guide elements acting in conjunction with guide rails along vehicle longitudinal axis. Each guide rails has an inclined front part and a more inclined rear part. The guide rails have racks engaged with pinion on seat. A motor driven pinion engages with the locking wheel (22). The motor in response to handle movement from a neutral position. When the motor is connected then the lock is also released simultaneously. The handle can be moved in both directions and this movement is limited by switching element for switching the motor.
Patent DE-2735127-A1 (DE)
Title: Multiple pneumatic feed of powders to extruders - where automatic systems control individual direct feed lines from central supply
Inventor: HOFMANN LOTHAR
IPC: B65G53/66
Filed: 1977-08-04
Abstract: Plastics processing machines e.g. extruders, are charged with powder or granulates by means of a compressed air feeder; each machine has its individual direct feed line (unbranched) to the outlet of the pneumatic supply and all the lines are individually regulated at that outlet but in a controlled sequence. Precise operation without lag effects or accumulation of material in the feed lines.
Patent DE-2744347-A1 (DE)
Title: Constant intensity bicycle lighting system - has bridge rectifier and comb relay to switch=in battery when dynamo speed falls below set value
Inventor: PRECHTL HANS
IPC: B62J6/00
Filed: 1977-10-01
Abstract: The bicycle is fitted with a lightning system consisting of dynamo, storage battery, bridge rectifier and comb relay. The circuit is arranged in such a manner that when the speed of the dynamo drops below a certain value, the additional elements provided in the installation switch the consumer onto the battery, or rechargeable battery supply. When normal speed of the dynamo is restored current is again supplied into the rechargeable battery. In this way the lighting is in operation even when the bicycle becomes stationary as it happens during a wait at the traffic lights.
Patent DE-2748935-A1 (DE)
Title: Sodium dithionite prodn. from pyrosulphite-formate addn. cpd. - by treating aq. alcoholic suspension with acid
Inventor: OSTERTAG WERNER DIPL CHEM DR
IPC: C01B17/66
Filed: 1977-11-02
Abstract: Prodn. of Na dithionite (I) comprises adding to a suspension of Na2S2O5.HCOONa (II) in a mixt. of water and alcohol (is not >50 wt.% water) a source of protons to give pH is not 4.1. Pref. the medium contains methanol and 10-20 wt.% water, and the acid in H2SO3 generated by passing SO2 through the suspension. Esp. 1-6 wt. pts. solvent are used per pt. (II). By keeping pH >=4.1 side reactions, esp. those leading to thiosulphate, are suppressed and yields of (I) improved.
Patent DE-2752454-A1 (DE)
Title: Arm attached to shaft in pneumatic motor - revolves when vacuum created by air backflow behind valve plate & air aspiration in front of plate
Inventor: FISCHER FRIEDRICH THEODOR
IPC: F01C1/46
Filed: 1977-11-24
Abstract: The pneumatic motor involves an electrically driven vacuum pump which empties four chambers. By reason of the vacuum produced, arm is set in motion in an anticlockwise direction. Electronically controlled valves ensure that behind a valve plate air continually flows backwards, whilst in front of the plate air is being aspirated, and by the thus produced vacuum, the arm moves forwards. The arm is attached to a shaft, and, therefore, with the arrangement of the chambers in a rotary configuration, can be made to revolve at 1000 rev/min, at 40% vacuum, and produce a power of 20.
Patent DE-2806399-A1 (DE)
Title: Crane speed control system - has moving parts with regulators connected to outputs of model of crane
Inventor: BERTLING TONI DIPL PHYS DR ING
IPC: B66C13/30
Filed: 1978-02-15
Abstract: The handling machine drive control system is particularly for a ship crane, having handling tackle on the end of a slewing jib (4). It controls the slewing, lifting and/or travelling motions. The motions have regulators whose desired-value inputs are connected to the emitters of a model of the crane, detecting the desired pattern of movement and generating desired values for the system. The end of the model jib is guided by means of a body in a baseplate, the body being coupled to a drive, whose speed is regulated by an adjuster with a lever. To move the load over various distances, the position of the bottom section of the model jib is adjustable in relation to the jib end guide slot.
Patent DE-2806574-A1 (DE)
Title: Window ventilating and venting unit - has lengthways perforated intake and outlet ducts with fan and sound insulation
Inventor: GEBHARDT HANS GUENTER
IPC: E06B7/10
Filed: 1978-02-16
Abstract: The element for providing ventilation in a window is designed for building-in at the edge of a window opening in a wall. It incorporates an air channel (3) and an air outlet channel (14). The former, with openings to link outdoor air and interior, runs lengthways along the ventilating element, and has a blower (6) built into its outer end zone. The end zone has similar openings and is similarly aligned, and both have sides clad with sound-insulating material. They may extend along almost the whole length of the element, and undergo at 180 deg. deflection inside it. This combines simplicity with low cost, ventilation and venting, and improved sound insulation.
Patent DE-2808960-A1 (DE)
Title: Internal or external wall decoration - is made from metal and acts as flower pot holder
Inventor: LINDEMANN HERMANN
IPC: B44C5/00
Filed: 1978-03-02
Abstract: The wall decoration can be formed as a flower pot holder, made of 6mm and 8mm wrought iron, 0.8mm and 1mm sheet metal. The iron is bent and the leaves, nirds or other patterns are cut out from metal and welded onto it . The finished unit can then be lacquered or varnished with suitable substances. The iron poriton incorporates loops for suspension by screws or other fastenings inserted in he wall.
Patent DE-2814164-A1 (DE)
Title: Valve tappet mechanism for multicylinder engine - has rotatable coupling permitting interruption of valve actuation when valve closed
Inventor: BRUDER WERNER DIPL ING
IPC: F02D13/06
Filed: 1978-04-01
Abstract: The multi-cylinder combustion engine has a valve actuation interruption device. Between the end of the valve stem and the valve actuator a mechanism is provided which, at will, either acts as a rigid element between the end and the actuator, or disengages the coupling between the end and the actuator whilst the valve is in the closed position. The mechanism may comprise cup-shaped striker rotatable to be coupled to a spring-loaded element engaging the top end to the valve stem and prevented from rotating by projections engaging recesses of a fixed ring.
Patent DE-2820240-A1 (DE)
Title: Lime kiln with rectangular cross=section - where cooling zone contains dividing wall permitting simultaneous prodn. of two different grades of roast lime
Inventor: PLANTHOLT WILHELM
IPC: F27B1/00
Filed: 1978-05-09
Abstract: Shaft furnace is used esp. for roasting lime via solid-, liq., and/or gaseous- fuels; and has a preheating zone, roasting zone (I), and cooling zone. Zone (I) has a vertical row of recesses fitted with burners and forming combustion chambers; and this zone (I) also contains a vertical row of bridges, which form baffles directing the flow of the charge. Each bridge has a triangular cross-section tapering upwards into more combustion chambers located under each bridge. The cooling shaft has a vertical dividing wall forming two shafts, each with its own outlet for the roasted lime. Another bridge is pref. located near the bottom end of the preheating zone. Kiln is similar to that described in 2513634, but is more suitable for producing roast lime of different quality e.g. for building materials or for fertilisers.
Patent DE-2822446-A1 (DE)
Title: Centrifuge for blood sepn. - has a rotor with sample tubes holder, the angle of inclination from the vertical being limited to reduce rotor size and speed up time
Inventor: SINN HARTMUT DIPL ING
IPC: B04B5/04
Filed: 1978-05-23
Abstract: Sepn. centrifuge is used for biological specimens, such as blood, esp. to recover plasma after the plasma phoresis process. The centrifuge has a rotor with holders attached to it which can swing about a pivot on horizontal axis from the vertical rotor axis. These normally hang in the vertical plane but swing out as velocity builds up. The angle of tilt the vertical is limited to 30-60, pref. 45 degrees. There are two such holders, one on either side of the rotor. The design allows a smaller design of housing and bowl a shorter run up time, reduced vibrational moment on the machine, low, total wt. for the machine which is thus more easily portable and can be used in mobile blood donor centres, even on aircraft.
Patent DE-2825786-A1 (DE)
Title: Non-reflecting porous layered internal wall cladding - has sound permeable mesh in front of room side layer
Inventor: JEHLE NORBERT DIPL PHYS
IPC: E04B1/82
Filed: 1978-06-13
Abstract: Porous insulating material mounted in front of a wall surface, with or without a space for air, comprises layers with different degrees of resistance to air flow, the resistance being lower in the layer facing the building interior as in the main patent. Here woven material (13), admitting passage of sound, is fitted in front of the layer (2) on the interior side. This can be a glass fibre weave, preferably wide-meshed. It may be stretched flat or kept in folds. It may also be wedge-shaped. A lightweight absorbent layer may be included between the interior layer and the one (3) on the wall side. This improves the reflection characteristic, and is inexpensive and attractive.
Patent DE-2826639-A1 (DE)
Title: Composite mandrel for back extrusion of tubular component - has thick-wall tube carrying solid mandrel for producing internal spline on work bore
Inventor: SCHULZ ECKHARD DIPL ING
IPC: B21K21/08
Filed: 1978-06-19
Abstract: The mandrel (2) for the back extrusion of open ended tubular components is built up from a thick walled tube (22) which fits inside a stepped sleeve together with a distance piece (24). The bore of the thick-walled tube has a short solid mandrel (21), a thin walled tube (23) and a longer solid mandrel (25). The blank (12) is initially in the form of a thick disc with a central hole which fits over the end of the short solid mandrel. This construction enables parts with internal serrations to be produced without causing deformation of the mandrel beyond its elastic limit.
Patent DE-2827359-A1 (DE)
Title: Aqueous diazotisation of aminoazo cpds. - in dilute hydrochloric acid with an excess of sodium nitrite
Inventor: LOEFFLER HERMANN
IPC: C09B29/08
Filed: 1978-06-22
Abstract: Aminoazo cpds. of formula (I) (in which n = 0 or 1, and rings A, B, C, can be substd.), are suspended in approx. 10-40% hydrochloric acid and the mixt. is treated at 20-80 PC. with a quantity of nitrite larger than is stoichiometrically necessary, in a process for their aq. diazotisation. Pref. the diazotisation is carried out at 20-50 degrees C.; the reaction takes place in the presence of a dispersion medium or a wetting agent (surfactant); and the excess of nitrite used is 10-50%. This provides a method of diazotisation of more highly substd. or weaker basic aminoazo cpds., without the disadvantages of existing methods such as high degree of dilution, the use of solvents, the need to start with dried and ground materials, the risk of sulphurisation or highly expensive prepn.
Patent DE-2827946-A1 (DE)
Title: Coil spring shot-peening system - has only one driving dog acting against each workpiece end
Inventor: KIRCHHOFF ERNST
IPC: B24C3/08
Filed: 1978-06-26
Abstract: The shot-peening system is for workpieces rotated about their lengthwise axes, each being driven forward by a dog disengaging from it after passing through the treatment area. Only one dog (5) acts against the end of each workpiece (2), its action being controlled by the latter. The dog, initially movable freely, can be initially held in the ready position, being brought by the individual workpiece into engagement with it, and then temporarily driven through the treatment area and back to the ready position again.
Patent DE-2835827-A1 (DE)
Title: Wind-surfer rig with circular sail - has curved mast whose ends may be drawn together to adjust sail fullness
Inventor: RADIUS KEES
IPC: B63B35/79
Filed: 1978-08-16
Abstract: The rig for a sailing surf-board has a sail of circular or regular polygonal form enclosed over about two-thirds of its total edge length by a bow-shaped mast. The mast may have a rigid or pivoted mounting on the hull. A bow-shaped member (27) on each side of the sail (4) is attached to the free ends (21) of the mast (20) and provides a mounting point for the aft end of the boom (9). The sail (4) may be flattened or slackened by a cord passing through the sail and serving to pull the two vertical members (21) together.
Patent DE-2836967-A1 (DE)
Title: Laminated polyurethane foam mfr. - by feeding woven web between cover web and rising foam to bond woven web integrally to foam block produced
Inventor: BOKELMANN HORST
IPC: B29C44/46
Filed: 1978-08-24
Abstract: Foamed plastics laminate is mfd. by feeding the foam between a cover web and introducing between the rising foam a cover web a woven web whose width corresp. to the width of foam block being produced and bonding permanently the web to foam block which has a rectangular cross-section. Used in mfg. polyurethane foam for furniture upholstery Seaparte step of bonding the woven web to the foam is dispensed with.
Patent DE-2837563-A1 (DE)
Title: Win symbols display system for gambling machine - has electronic coupling circuit using OR=gate and two sets of diode arrays
Inventor: GAUSELMANN PAUL
IPC: G07F17/32
Filed: 1978-08-29
Abstract: The arrangement enables a "win" symbol to be displayed at various heights in a gambling machine and comprises a device for stopping a rotating display so that a symbolic layout is revealed in the window spaces of the display units. A keyward unit (1) has a number of terminals (a1 to a9) connected through a coupling field (5) with various segments (a-g) of each of three seven-segment display modules (6 7 8). Electronic coupling is arranged through a large ORgate (9) and two pairs of linear sets of divided couplings (D56 D57; D06, D07).
Patent DE-2840752-A1 (DE)
Title: HF gain-control circuit with control transistor - altering bias applied to differential amplifier to provide stabilisation
Inventor: DJAMSHIDPOUR MASSOUD DIPL ING
IPC: H03G3/20
Filed: 1978-09-16
Abstract: The HF gain-control circuit has the base bias of the two transistors in the differential amplifier changed by a control transistor such that the HF input voltage is rectified and passed via a resistor (connected via a variable capacitor and variable resistor to ground), impedance transformer, DC amplifier and resistor to the base of the control transistor. The advantage lies in making certain parameters independent of operating conditions, such as ambient temp. supply fluctuations, input fluctuations, load changes.
Patent DE-2842800-A1 (DE)
Title: Pulse generator with two monoflops - generating pulses of half vertical frequency from TV synchronising signal
Inventor: DIENEMANN PAUL
IPC: H04N5/04
Filed: 1978-09-30
Abstract: The pulse generator produces pulses having half the vertical frequency from a television sync. signal using two series monoflops with different time constants. The sync. signal (a, a') is applied to the negative trigger input (22) of the first monoflop (1). The wanted output signal (c, c') is taken from the non-inverted output (23) of the second monoflop (2). The non-inverted output of the first monoflop is connected to the positive trigger input of the second. The first monoflop's time constant lies between 0.5H and 1H and the second's between 8H and 9H.
Patent DE-2842839-A1 (DE)
Inventor: SEIDEL HARTMUT DR MED
IPC: C08F265/06
Filed: 1978-10-02
Abstract: Self-curing compositions are prepared based on polymethyl methacrylate (PMMA) are by mixing a finely powdered solid polymer phase of PMMA and/or poly (2-hydroxyethyl methacrylate) (PHEMA) with a liquid monomer phase of methyl methacrylate (MMA) and/or 2-hydroxyethyl methacrylate (HEMA) in a weight ratio of polymer phase to monomer phase of 1.5 to 3.3:1 wherein the portion of PHEMA in the cured product is between 2 and 99 weight %. The product is prepared by vigorously stirring the mixture at room temperature until the polymerization is essentially finished.
Patent DE-2845631-A1 (DE)
Title: Delamination-resistant two-ply laminate for vehicle and ship building - by priming a plastics or metal sheet and moulding semi-hard polyurethane foam onto it in closed mould
Inventor: SCHOEN BERND JUERGEN
IPC: B32B5/20
Filed: 1978-10-19
Abstract: Mfr. of a 2-ply laminated sheet composed of a solid-plastics or sheet metal ply and a foam ply comprises coating the plastics or sheet metal ply with a primer and then moulding the foam ply onto it in a closed mould. The foam ply consists of a polyurethane integral-foam of semi-hard consistency and with apparent density of 300-800 (400-600) kg/m3. The foam ply is 4-20 (6-10) mm thick. The prod., which is used in motor vehicle construction and ship building, has good resistance to delamination, even when subjected to flexural stresses during post-moulding.
Patent DE-2845663-A1 (DE)
Title: Three=phase generator for motor vehicle - has one hexagonal disc-like bearing plane with ventilation
Inventor: HAGENLOCHER WALTER
IPC: H02K5/15
Filed: 1978-10-20
Abstract: The 3-phase generator has one bearing plate rigid in the direction transverse to the long axis of the generator shaft but elastic in the direction of the ong axis of the shaft. The bearing plate is shape like a disc and has a bearing socket (36) formed at its centre and projecting beyond the general plane of the disc. The bearing plate has holes (38) to ventilate the generator. The bearing socket is produced by deep drawing or flow pressing or extrusion. The plate also has smaller holes (41) to accommodate rectifier diodes. The plate may have a hexagonal shape to match the hexagonal shape of the generator casing.