baber/WOPTO huggingface dataset:
Patent DE-2226545-A1 (DE)
Title: Oil dispersions of calcium carbonate - for use as lubricant and additives in large scale prodn
Inventor: KEMP PAUL C
IPC: C10M159/24
Filed: 1972-05-31
Abstract: A stable dispersion of CaCO3 in a non-volatile diluent oil (I), suitable for use as a lubricant additive, is produced by (A) forming a mixt. of (a) 5-30 wt.pts. of an oil-soluble sulphonic acid or Ca sulphonate dispersing agent, (b) 10-50 wt. pts of a volatile hydrocarbon solvent of b,p 150 degrees C, (c) 5-30 wt. pts MeOH, (d) >=0.25 wt. pts of (I) of b.p >200 degrees C, and (e) 1-25 wt. pts of CaO and/or Ca(OH)2 the amt being sufficient to ensure an alkalinity index (in acetic acid medium) of >=50 in the final product, (B) treating the mixt. with 0.75-0.95 mole CO2 per mole of Ca of over alkalinisation, the temp. being =35 degrees C, (C) adding an amt of (I) sufficient to bring the total content of (I) to 20-85 pts. per 100 wt. pts. of combined dispersing agent and (I); (D) heating the mixt to remove the quasi-total of volatile materials, and (E) blowing CO2 into the mixt to convert the quasi-total of CaO or Ca(OH)2 into CaCO3. The process can be operated on a large scale.
Patent DE-2232512-A1 (DE)
Title: Vibratory hopper feed system - for granular loose material, esp nuclear fuel
Inventor: IMHOF WERNER
IPC: B65D88/66
Filed: 1972-07-03
Abstract: Within the main wall of the hopper is an inner unit defining a gap between its edge and the wall of the hopper whose width varies periodically due to axial vibrations of that inner body produced by a vibrator element mounted in or on it. The length of the control gap is confined to a very narrow height bracket and is formed by a rotation symmetrical body clamped between the upper and lower truncated conical sections of the inner body, the gap between the lower section and the hopper wall being significantly larger and thus exercising no control effect on the loose fine grained or powder material. The inner body is fixed with axial adjustment to the hub of a tripod whose feed rest on the rim of the hopper and has one hollow leg for the feed cables to the vibrator element. The unit may be portable and capable of being placed when required in drums or like containers.
Patent DE-2233437-A1 (DE)
Title: Centrifugal force separation - of particles suspended in a flowing medium
Inventor: BIELEFELDT ERNST-AUGUST DIPL I
IPC: B65G53/60
Filed: 1972-07-07
Abstract: The main stream partially enters a semi-circular cross section turbulence chamber in a circular path to create a centrifugal force field. An extraction duct for the exhaust of the cleaned or processed material projects axially from the turbulence chamber. This connects to a fan which extracts air containing fine particles, which can be returned to the main stream prior to or beyond the turbulence chamber. The proportion of the main stream by-passing the turbulence chamber passes into further turbulence chambers or is filtered. more specific embodiments of the invention mention series of turbulence chambers and particle collectors used in conjunction with turbulence chambers.
Patent DE-2338689-A1 (DE)
Title: Continuous veneer strip manufacture - with sheets glued together at overlapping tapered ends and cut lengthways
Inventor: WIBLISHAUSER ARMIN
IPC: B27D1/10
Filed: 1973-07-31
Abstract: The continuous strip, used in furniture manufacture and for similar purposes, is made up from individual plywood sheets each 2-4 m. long and 20-60 cm. wide. The ends are tapered in thickness so that the sheets can be glued together with fitting overlapping ends, and the resultant strip is then cut into narrower strips of the desired width. Ends are pref. cut to pointed wedge shaped, and glued on the unworked sides. The process is simplified, with exactly fitting graining at joints made practicable, and an increased gluing surface is provided.
Patent DE-2341265-A1 (DE)
Title: Catalytic exhaust gas cleaning system for vehicle engines - has a flexible heat resistant material enclosure for the catalyst elements
Inventor: KRUEGER HERMANN DR-ING
IPC: F01N3/28
Filed: 1973-08-16
Abstract: The catalyst element comes into contact with the housing on axial pushing, and reinforcement rings for protecting the catalyst element are provided against contact with the housing and hence this prevents damage to the catalyst element. The cylindrical reinforcing cap covers the end edge of the catalyst element. The cylindrical arrangement has overturned edges for protecting the sharp brittle end edges of the catalyst element. In the assembled position the ring is subjected to radial pressure. The catalyst element is enclosed in a flexible ceramic fibre material layer arranged between the catalyst body and the outer shell of the container so that this enclosing material is under pressure.
Patent DE-2341444-A1 (DE)
Title: Waste heat boiler with finned tubes - has straight walls with symmetrical partitions for extended gas pth to improve operation
Inventor: VOLLHARDT FROHMUT
IPC: F23G5/46
Filed: 1973-08-16
Abstract: The boiler operates with combustion products of refuse incinerators which contain aggressive media, but carry gases at a temp. lower than that achieved with burning of waste acid products. The inside space of the boiler bounded by straight walls is subdivided into compartments with partitions so that the gases from the refuse incinerators are forced to follow a labyrinth path. The headers and connectors are set symmetrically with respect to the wall plane and in relation to the central axis, and similarly the supports and suspensions for the walls and their parts are set symmetrically. This allows exchange of worn out sections to be carried out without effecting the stability of the boiler structure.
Patent DE-2344168-A1 (DE)
Title: Securing unit for crane's operating linkage - is actuated when predetermined maximum load moment is exceeded
Inventor: HOHMANN WALTER
IPC: B66C13/56
Filed: 1973-09-01
Abstract: The securing unit is typically incorporated in the rod linkage leading from the crane's drive motor and consists of e.g spherical locking elements which can be thrust into an internal circumferential groove in the surrounding cylinder whose sealed and is joined to one part of the rod linkage. A control unit keeps the switch closed which energises the electromagnet pulling a clamping cone. The cone forces the locking spheres through wall opening in a cage-like cylinder and into the groove so that the two rod linkages parts are coupled rigidly together. When the predetermined maximum load moment is exceeded, the switch is openeD, the electromagnet de-energised and hence the locking spheres can disengage from the groove.
Patent DE-2347953-A1 (DE)
Title: High performance boiler for intensive evaporation of water - sprays water over heated surfaces for improving evaporation rate
Inventor: STRAKATA JOSEF
IPC: F22B27/16
Filed: 1973-09-24
Abstract: The steam generator using sprayed water is used to ensure a more intensive evaporation rate due to the increased surface area of the water coming into contact with heated surfaces. Increasing the surface area of water improves the steam generating performance in a boiler with relatively small metallic contact area. The boilers using this principle can be used in very small steam engines for vehicles operating for example, with radial pistons. These engines generate very little noise. The hot water for domestic use is produced by pumping water into a helical coil which has outlet nozzles. Water is delivered into the coil by the pump at high pressure and the water is sprayed against the centrally heated shell of the boiler. The steam generated is used for producing hot water.
Patent DE-2353137-A1 (DE)
Title: Slewing crane on vertical column - has multi-section jib controlled by lever on free end
Inventor: BEYER FRIEDER DIPL-ING
IPC: B66C23/00
Filed: 1973-10-23
Abstract: The crane is particularly for handling heavy workpieces loaded in or removed from machine tools. The jib is in several sections and follows the operator's movements, having a control lever on the free end. A pushbutton can be provided on the lever, to convert the jib into the manoeuvrable condition, also a load hook on the free end. The jib can be in two sections, both pivoting about horizontal axes under the action of rams supplied from an electro-hydraulic systems, and controlled by servo valves. The solenoid actuators for the first stage of the servo valves can be connected electrically to a common cruciform potentiometer, actuated by the control lever.
Patent DE-2360915-A1 (DE)
Title: Triaryl (pref. tribenzyl) sulpenamide prepn - from diaryl sulphenamide alkali metal derivs and acylating or aryl sulphenylating agents
Inventor: BARTON DEREK HAROLD RICHARD PR
IPC: C07D209/40
Filed: 1973-12-06
Abstract: New triaryl sulphenamides have general formula N(Sar)3 (I)(where Ar are opt. same and denote mono- or polycyclic, carbocyclic or heterocyclic aryl gps.). Pref. Ar are Ph, alpha- and beta-naphthyl, diphenyl, pyridyl, quinolyl, thienyl or furyl, or 2 Ar denote an o-phenylene gp., and are opt. substd. by nitro, alkoxy, alkyl, -CN or halogen. (I) are used in reactions with nucleophilic cpds. to form products some of which have biocidal activity.
Patent DE-2361290-A1 (DE)
Title: Energy recovery from reverse osmosis - having turbine on concentrate and product runoff to recover pressure energy
Inventor: GIESECKE HEINRICH
IPC: B01D61/06
Filed: 1973-12-08
Abstract: Reverse osmosis plant consists of a cell contg. a semi-permeable membrane suitably supported supplied with a liq. feed from a pump at press. P1. The liq. (esp. saline water) passes through the membrane leaving a concn. of solute behind the membrane. This is bled off at press. PZ through a turbine which drops its press to atmospheric (Po) and allows it to run off. Similarly some energy can be recovered from the prod. stream leaving at P3. The appts. has general application, esp. for desalination of seawater. Up to 50% of the original pumping energy is still present in the effluent stream and this is recoverable thus reducing the pumping costs. The turbine, or similar, can be directly coupled to the feed pump or can be coupled to an electrical generator.
Patent DE-2365198-A1 (DE)
Title: Free-running high-torque ratchet - has recesses on annular head inner surface receiving clamp rollers
Inventor: HEINEMANN FRITZ
IPC: B25B13/46
Filed: 1973-12-31
Abstract: Free-running ratchet for high torques has sawtooth, curved or straight tangential recesses to receive the clamp rollers, whose clamping angle is smaller than the friction angle. The recesses are on the inner surface of the annular ratchet head. Preferably the clamp rollers when in the idling position can still turn, for reliable driving in the working position. The smallest rotation of the ratchet lever in the working direction immediately makes the system frictionally locking, and the arrangement of the rollers in a crowded race gives a high power with minimal dimensions.
Patent DE-2403456-A1 (DE)
Title: Soft material esp. rubber roll-facing is machined - by firm ring-shaped tool which eliminates chatter
Inventor: WERMEISTER GUENTER
IPC: B23B27/16
Filed: 1974-01-25
Abstract: A tool for machining soft, esp. elastic material such as rubber, e.g. rubber-faced rolls, comprising a hallow (tubular) device, esp. a conically tapering ring with a cutting edge at the top circumference. This ring is mounted at the end of a shaft, pref. detachably by means of a stirrup-shaped bridge-piece which is pressed down onto the shaft and ring so that its two tapering arms wedge respectively inside the conical passage of the ring and inside a groove on the shaft. The tool-end of the shaft pref. has a tapered recess in which the tool is seated. The firmess of the tool, due to its annular shape, prevents chatter. As the tool edge becomes locally blunt, it can be moved round progressively so that a new portion of the edge is used. The machined strip removed from the rubber is guided away, thus eliminating risk of clogging.
Patent DE-2407463-A1 (DE)
Title: External broaching of flat surfaces - uses circular broaching tool of constant cutting diameter fitted parallel to workpiece surface
Inventor: NIPPA ROLF
IPC: B23D37/06
Filed: 1974-02-16
Abstract: The external broaching of flat surfaces, in which a circular broaching tool of constant cutting diameter is used and is fitted parallel to the workpiece surface, and is inclined with respect to the direction of cut by the total feed of a working stroke. Specifically, there are two circular broaching tools which diverge in the direction of the cut. Broaching tools, without chip breaker grooves, may be used. At the end of the machine stand path, the broaching tool is turned through an angle corresponding to the arc of engagement of the cutting edges single- or multi-part tool may be used for broaching.
Patent DE-2413047-A1 (DE)
Title: Semiautomatic covering of shoe heels - using elastic mat and additional horizontal pressure plungers
Inventor: NAETHER KURT
IPC: A43D25/12
Filed: 1974-03-19
Abstract: Heel banks are covered with leather or plastics film by placing the covering material coated with a contact adhesive onto an elastic mat clamped at opposite sides, coating the heel blank also with a contact adhesive and placing it on the covering material with its rounded back, pressing the heel blank vertically downwards while stretching the U-like deformed mat to a length substantially exceeding the largest depth of the heel, and - while maintaining the vertical pressure - pressing both free upper leg portions of the U-shaped mat inwardly from both sides into contact with the front of the heel under additional stretching. The process is suitable for various heel shapes. Maximum adhesion is achieved in all heel areas.
Patent DE-2421597-A1 (DE)
Title: Multi-chamber vehicle light - comprises plastics housing with supporting and welding surface for light panes
Inventor: JUROWSKI WILLI
IPC: B60Q1/26
Filed: 1974-05-04
Abstract: The multi-chamber vehicle light comprises a plastics housing with partitions forming chambers which are covered by differently coloured plastics light panes. The partitions are arranged in the region of the abutting edges of two adjacent light panes in the form of double walls of which each individual wall forms a supporting and welding surface for one of the light panes. The individual walls extend perpendicularly from the base of the housing, and taper towards the supporting and welding surfaces. The light panes include in the region of the abutting edges retaining ridges which engage in the spaces formed by the double walls.
Patent DE-2423661-A1 (DE)
Title: Plastic patterned flooring finish - produced by applying contrasting top coat on to undercoat before curing
Inventor: MOECKEL SIEGFRIED HERBERT
IPC: B44C1/04
Filed: 1974-05-15
Abstract: A patterned flooring or floor covering is produced by applying a contrasting colour pattern in plastic material on to the surface of a horizontal substrate coated with the thermosetting resin; the contrasting layer must flow and cure and is applied as a liq. before the first resin has cured. Prod. is versatile in design and has smooth easily-cleaned surface. The first thermosetting resin coat is suitably coloured and applied to the substrate by trowel, the resin being the same as for the final coat e.g. epoxide. The latter is pref. filled to prevent penetration into the first coat and is sprayed on before the undercoat has cured.
Patent DE-2427355-A1 (DE)
Title: System to dry strip form material - variable coverage diffuser in axial direction in drying chamber
Inventor: FRANKLER DIETER DIPL ING
IPC: F26B13/10
Filed: 1974-06-06
Abstract: A device to dry a strip from material band has a blower chamber (1) constructed with a longitudinal diffuser opening (2) axial to the material path (4) whose long axis is in the transport direction of material passing over the carrier supports (3). The diffuser opening (2) is the same length as the drying chamber of the system. The side screens of the diffuser opening (2) can be adjusted to alter angle of air ejected and hence the area heated. Further details are given of the construction and operation of the system.
Patent DE-2430286-A1 (DE)
Title: Ammonium halohydrin -contg acrylate polymers - for moulded articles, coating, adhesives and textile finishes
Inventor: NAARMANN HERBERT DIPL CHEM DR
IPC: C08F20/60
Filed: 1974-06-24
Abstract: Polymers contg. units of general formula (I): are prepd. by polymersn. with free-radical forming initiators (where R = H, CH3, R1 = R2 = alkyl, cycloalkyl, aryl, R3 = H, CH3, benzene, X = Cl, Br, Q = -OCH2CH2, NHCH2CH2, OCH2CH2CH2, NHC2CH2, OCH2CH2-O-CH2CH2, O-CH2CH2CH2-O-CH2CH2, or Y is an organic or inorganic cation) opt. together with other olefinically unsaturated monomers). The polymers can be used for the prodn. of moulded articles, coatings or adhesives, opt. in admixt. with other plastics, e.g. polyethylene, polypropylene, or copolymers of vinyl acetate, and are useful for finishing textiles.
Patent DE-2433667-A1 (DE)
Title: Communications system for transmitting and displaying characters - allows telephone conversation to be illustrated at all receivers by sketches etc.
Inventor: FENDT HEINZ W DIPL PHYS
IPC: H01J31/08
Filed: 1974-07-12
Abstract: The communications system for the transmission and reproduction of currently produced hand drawn signs and sketches, is intended to be used in conjunction with a telephone system to illustrate conversations. At each terminal is a CRT controlled via magnetic deflection coils by suitable electronic control units which convert voltage inputs to the appropriate form to drive the CRT deflection coils both at a local tube and at all the remote tubes via a transmission and switching system. The input to each electronic unit is taken from a conducting pen which is used to sketch on the specially prepared face of the CRT. The face of the tube is covered with a thin conducting transparent layer which is excited by coordinate electrode pairs at the sides and at the top and bottom of the CRT screen.
Patent DE-2434232-A1 (DE)
Title: Acrylic fibres of stabilised hygroscopicity - from copolymer of acrylonitrile, hydrophilic monomer and cross-linkable monomer
Inventor: SUMI TAKEHIRO
IPC: D01F6/38
Filed: 1974-07-16
Abstract: Acrylic fibres are produced by wet spinning a soln. of a copolymer contng. >=50 wt. % acrylonitrile, a monomer with at least one hydrophilic gp. and a monomer with at least one cross-linkable gp., subjecting the resulting acrylic fibre to a cross-linking treatment and finally drying the fibre. Pref. the fibre is then emmersed in a carboxylic acid-dissociatable aqs. soln. of one or more salts of ammonia or of metals of Group I, II, or III, the soln. having a pH >6. Pref. the monomer contng. a hydrophilic gp. is is not 5 wt. %, and the cross-linkable monomer is not >2 wt. % of the total fibre-forming components. The resulting fibre has a stabilised hygroscopicity without impairing the nodal strength or extension as compared to known acrylic fibres.
Patent DE-2435238-A1 (DE)
Title: Methanol gasification to methane - using combined dehydration dehydrogenation catalysts
Inventor: HARRIS NORMAN
IPC: C07C1/20
Filed: 1974-07-22
Abstract: Catalytic MeOH decompsn. is effected by simultaneous or consecutive use of catalysts which combine dehydrating and dehydrogenating functions, so that an appreciable amount of CH4 is formed by a process other than hydrogenation of C oxides. A mixed catalyst (I) is pref. used, combining (a) a Gp. VIII metal element-free dehydrogenation catalyst, e.g. a mixt. of Cr2O3 and Fe2O3, and (b) dehydration catalysts, e.g. phosphates, phosphoric acid, tungstates, tungstic acid, Al phosphate or activated Al2O3 . CH4 yield is increased by catalytically methanising the gaseous reaction products with a Gp VIII metal catalyst.
Patent DE-2438133-A1 (DE)
Title: 1-(Fluorobenzoylpropyl)-4-(acylhalophenoxy-ethyl)-piperazines - with high tranquillizing and low sedative activity
Inventor: ZEUGNER HORST DR
IPC: C07D295/108
Filed: 1974-08-08
Abstract: Piperazine derivs. of formula (I) and their acid-addn. salts are new: (where R is 1-5C alkyl; Hal is F, Cl or Br). (I) are tranquillizers with low toxicity and a high ratio of tranquillizing to sedative activity; e.g. (I; R=Me, Hal=Cl).2HCl.H2O has an LD50 of 119 mg/kg (i.p., mouse), a hexobarbital-potentiating ED50 of 43 mg/kg (i.v., mouse) and an anti-aggression ED50 of 0.86 mg/kg (i.p., mouse); the corresp. values for chlorpromoazin are 69, 6 and 1.8 mg/kg respectively.
Patent DE-2439030-A1 (DE)
Title: Two stage hydraulic flow regulating valve - flow sensing valve located in output line provides feedback compensating signals for flapper auxiliary control pistons
Inventor: HAYNER PAUL F
IPC: F15B13/043
Filed: 1973-08-14
Abstract: Precise flow regulation utilises a two-stage hydraulic valve with a high response flow output sensing stage. The reference flow input is preset using a torque motor driving a flap valve. Outputs from the flap stage provide control signals for the second stage spool valve. One output from the second stage is coupled directly to a flow sensing device. Flow across the sensor to an output line is transmitted over a sharp-edged orifice formed by the annular gap between a disc and the bore. Two valve lands at either end are spring biased in the null position and are responsive to pressure through bleed holes. The input and output of the sensor provide feedback signals to two compensating cylinders operating on the flap input stage. Any flow variation due to supply pressure fluctuation or load provides a negative feedback to the flapper.
Patent DE-2444503-A1 (DE)
Title: Casting mould for electrical fittings with inbuilt parts - has sliding bolts and spring loaded pin to hold parts
Inventor: HESS ALFONS
IPC: B22D17/24
Filed: 1974-09-18
Abstract: A casting mould comprises fixed and moving parts containing between them an interchangeable mould shell having a sprue and vents. In the fixed mould part a holding plate with several (esp. three) centering bolts is mounted for centering an inbuilt component to be integrally fixed in the finished casting, also in this fixed mould part a pressure pin esp. having an adjustable compression spring, is mounted for holding the inbuilt component after it has been centrered by the centering bolds and these bolts have been withdrawn. The bolts and holding plate are therefore pref. movable. The mould is used esp for mouldings of casting resins, such as insulators, and other electrical items, where inbuilt components of variable sizes and shapes need to be cast in on different occasions.
Patent DE-2454998-A1 (DE)
Title: Isobutylene recovery from 4C hydrocarbon fractions - by intermediate conversion to tert. butanol and dehydration of the alcohol
Inventor: TSCHAPLIZ DONAT NIKOLAJEWITSCH
IPC: C07C7/148
Filed: 1974-11-20
Abstract: Isobutylene is recovered from 4C hydrocarbon fractions by (1) heating the fraction with water in a mol. ratio 1:5 to 1:20 at 70-110 degrees C and 16-23 atmos. in the presence of a catalyst and a polar solvent present in amts. of 10-70% on wt. of water, to form a reaction mixt. contg. tert. butanol and water; (2) recovering the tert, butanol as an aq. soln. and (3) subjecting the soln. to catalytic dehydration of the tert. butanol at 80-110 degrees C under a pressure of >3 atmos. whereby the catalyst used in stages (1) and (3) is a formed ion exchange catalyst consisting of a 1-4:1-2 mixt. of a sulphonated styrene-divinyl benzene copolymer and a sulphonated thermoplastic matl. The catalyst has high activity (1.5-2 fold that of sulphonic acid exchangers), good heat resistance (4000-4500 hrs working life at 85-100 degrees C) and gives improved process output cf. known sulphonic acid exchanger catalysts.