baber/WOPTO huggingface dataset:
Patent DE-2540517-A1 (DE)
Title: Continuous bulk polymn. process - for moulding compsns., made from styrene plus other monomers of different reactivity
Inventor: WINGLER FRANK DR
IPC: C08F2/02
Filed: 1975-09-11
Abstract: Uniform thermoplastic moulding compsns. are continuously produced from random copolymers of intrinsic viscosity 0.1-2 dl/g (DMF at 25 degrees C) which are stable at 90-130 degrees C and comprise (A) 22-96 mole % styrene and/or alpha-methylstyrene; (B) 0-78 mole % >=1 olefin unsatd. nitrile-contg. monomer and (C) 0-50 mole % >=1 other monoolefinically unsatd. monomer by (i) copolymerising at 60-150 degrees C in presence of an initiator of half-life =1/10 dwell time but greater than incorporation time, and in a reactor-reservoir with continuous circulation and ideal mixing for 10-240 mins. (mixing time 5-120 sec), 100 wt. pts. of a monomer mixt. comprising 4-99.6 mole % (A); 0-96 mole % (B) and 0-80 mole % (C), with back mixing until conversion is 10-60 mole %; then (ii) adding 0.5-100 wt. pts. of a mixt. of 0-100 mole % each of (A), (B) and/or (C) plus 0.01-0.5 wt.% initiator having the same properties under the polymsn. conditions of the third stage as the first initiator in stage (i); then (iii) copolymerising at 100-250 degrees C for 10-480 mins. (incorporation time 0.1-4 mins.) in a completely-filled mixer, which is self cleaning and fitted with mobile mixing elements which scrape the walls and each other with back-mixing, until the residual monomer content is 10-50 mole % (on total monomers), then degassing the monomer-contg. copolymer with a vacuum or inert gas purge until residual monomer content is 0.5 wt.%. Process allows uniform, transparent, and stable polymers to be made from monomers of widely differing reactivities.
Patent DE-2543066-A1 (DE)
Title: Static converter circuit - has two converters with series outputs and composite output voltages amplitude altered by phase difference
Inventor: IMURA TERUO DIPL ING
IPC: H02M5/27
Filed: 1975-09-26
Abstract: The static converter circuit has two thyristor bridge converters with their inputs coupled in parallel to the phase network supply and their outputs coupled in series to form a composite output voltage. The composite output voltage's amplitude is altered by altering the phase difference between the output voltages of the two separate converters. The amplitudes of the separate converters are fixed at a constant level. The advantage of using the phase difference to alter the output amplitude lies in its having only a very small back effect on the supply.
Patent DE-2548741-A1 (DE)
Title: Magnesium bisulphite recovery from waste gas - contg. magnesium oxide dust, by multistage washing with magnesium sulphite suspension (OE150376)
Inventor: LOQUENZ HEINZ DIPL ING
IPC: C01F5/42
Filed: 1975-10-31
Abstract: The recovery of the S and Mg in the form of technically pure Mg(HSO3)2 from the waste gases bearing MgO dust from a liquor combustion plant in a multistage washing process, in which the waste gas is washed with MgSO3 suspension in >=1 stage, comprises producing a water-insol. MgSO3 cpd. in a suspension at least in a second washing stage and sepg. from the suspension, then passing the suspension freed from coarse MgSO3 into a clarifier, in which the water-soluble impurities are drained from the water-insol. constituents and the remaining fine grained suspension is recycled to the second washing stage, whilst the coarse MgSO3 is passed to the first stage in the form of a suspension and converted to Mg(HSO3)2 by the SO2-rich waste gas stream. The prodt. is obtd. in very pure form.
Patent DE-2552089-A1 (DE)
Title: Crush resistant, elastic, stall floor cover mat - from old tyre granulate, a vulcanisable binder and cover
Inventor: PETZOLD HEINZ
IPC: A01K1/015
Filed: 1975-11-20
Abstract: The mat consists of a pad and an abrasion resistant cover film, contg. a fibrous rubber material as pad granulate. This is prepd. either from old auto-tyres or other elastomer vulcanisates impregnated with a vulcanising material consisting of >=1 elastomeric polymer and a butadiene polymer liquifying the mixt. Finally the pad and cover is vulcanised. A rubber prod. is used for joining the granulate, which because it is almost liq., allows good mixing and wets the granulate surfaces. After vulcanisation bending of the granulate occurs without sepn. of the granulate parts from each other. The pads/mats are crush resistant. The mats are used instead of straw in animal stalls and ensure easy cleaning. They do not cause injury to the animals by rubbing.
Patent DE-2552331-A1 (DE)
Title: Focussing device for linear scanning field - concentrates light emanating from field onto relatively small receiver
Inventor: SICK ERWIN
IPC: G01N21/89
Filed: 1975-11-21
Abstract: The focussing device has an optical unit generating the scanning spots, a light deflection device to which a light beam is applied, a convex mirror extending in the scanning direction, and a cylindrical lens near the scanning field and extending parallel to it. Transmitter and receiver beams are split between pupils. The reception beam (25) is bent between the scanning field (F) and the light deflector (13) in the direction of the piercing point (28) of the transmitter beam (17) axis on the deflection device. It is bent by an amount such that it still falls on the light deflector (13), but misses optical elements (11, 12, 21, 22, 29) in front of the light deflector. The latter is typically a hexagonal mirror array.
Patent DE-2556744-A1 (DE)
Title: Firearm cartridges which spread impact effects - to dissipate shock or chemicals via a splayed (plastic) body
Inventor: SCHIRNEKER HANS-LUDWIG
IPC: F42B5/02
Filed: 1975-12-17
Abstract: Cartridges which incorporate bullet heads comprising a cylindrical body ending in a central point which is surrounded by shoulders or flanges. The base of the head is supported by a relatively strong annular collar. Cartridges are useful for hand guns or shoulder guns, for use in hunting or in chase and capture of animals or people. The heads are designed to widen the effect of impact, either to kill by inducing a high degree of shock or to disable by inducing a high degree of pain without causing serious damage.
Patent DE-2605771-A1 (DE)
Title: Prefabricated concrete parapet or screen - with panels locked in channel in plinth fixed in load bearing base
Inventor: CLAUSS OTTO
IPC: E04F11/18
Filed: 1976-02-13
Abstract: The parapet structure, made up from prefabricated concrete components, is suitable for erection on balconies or terraces, round outdoor enclosures, or as a visual screening wall or wind break. It is resistant to corrosion and deterioration, has no visible anchoring or screwing units, and can be used in widely variable configurations. There are horizontally adjoining shaped plinth shaped units, which can be fixed in a load bearing base (10) from the bottom of an upwards open channel (13), with dowel plugs or other ties (26). Parapet panels (14) are vertically erected and form-locked in the channel, and the lower part of these is enclosed on all sides by concrete cast in the channel. The plinth unit may have a channel section widening conically upwards, and may have holes in the bottom for spreader dowel plugs.
Patent DE-2620743-A1 (DE)
Title: Amino-substd. alkyl nitriles prodn. - from amines, carbonyl cpds. and hydrogen cyanide, useful e.g. as pharmaceutical and agrochemical intermediates
Inventor: DISTLER HARRY DR
IPC: C07D295/145
Filed: 1976-05-11
Abstract: Prepn. of glycine nitriles of formula R3R4N.CR5R6.CN (I) comprises reacting amnes R3R4NH (III) with carbonyl cpds R5COR6 (IV) and HCN in presence of water for 0.1-4 hrs. at 0-80 degrees C. The condn. of HCN never exceeds 0.9 wt. % of the reaction mixt. In the formulae, R3-6 are aromatic, cycloaliphatic or araliphatic gps.; R3 and R4 may together complete a heterocycle; R4-6 may also be H, and R5 and R6 may also be aliphatic, and when R5 and/or R6 is aliphatic aromatic, cycloaliphatic or araliphatic, then R3 and R4 can also be aliphatic. Pref. the products where R3-6 are aromatic gps., R5 and R6 may also be H, aliphatic, cycloaliphatic or araliphatic, and R4 may be H, are subsequently treated with an acid at pH 1-7. (I) are stabilisers; intermediates for dyes (e.g. indigo) fungicides, bactericides, textile auxiliaries and antigelling agents; and by saponification give glycine salts useful as selective adsorbents for CO2, SO2 and H2S, and by hydrogenation give assymetric diamines useful for making pharmaceuticals and plant protection agents. Cf. the process of DT 1543342. This method is simpler and more economic giving better yields of purer products. Water pollution and formation of resinous by-products are minimised, and subsequent acid treatment obviates expensive purification steps and avoids losses of solvent.
Patent DE-2629068-A1 (DE)
Title: Pozzolanic concrete additive - comprising lava slag ground to predetermined particle size
Inventor: HORST JOSEF
IPC: C04B7/12
Filed: 1976-06-29
Abstract: Puzzo laric additive for concrete consists of lava slag which is finely ground to a particle size of >=3000 cm2/g (specific surface measurement according to Blaine). Calcining or rapid cooling of the additive is not required. The additive gives the concrete good water resistance and reduces the heat of setting. The additive also improves the strength and reduces efflorescence. The additive reduces the amt. of cement required which in turn promotes corrosion protection of the steel reinforcement. The pumping properties of the concrete are also improved.
Patent DE-2631003-A1 (DE)
Title: Frequency multiplier with step recovery diode - includes diode forms with other components and two circuits tuned to two different harmonics of fundamental frequency
Inventor: HEISE RUDOLF
IPC: H03B19/16
Filed: 1976-07-09
Abstract: The frequency multiplier circuit comprises an input filter (AN), a coupling capacitor (CK), a shunt resistor (Ra) and capacitor (Cf), a series inductance (LD) and external coupling capacitor (Ca) to one output and diode rectifier to the other. Two different harmonics are derived from a fundamental frequency and delivered as output signals. An inductance is connected to the diode, thus forming a series resonant circuit for one of the required harmonics. Diode electrode connected to frame is connected in series to a parallel resonant circuit tuned to the other harmonic. Harmonics are collected from their respective circuits.
Patent DE-2632511-A1 (DE)
Title: Multisection filter panel - has tubular lugs on adjacent elements forming holes for expanding anchor pins
Inventor: WOLFF KURT
IPC: B07B1/49
Filed: 1976-07-20
Abstract: A filter panel is made up of a rigid supporting frame containing polygonal elements with the elasticity of rubber, fitting against each other to form a continuous surface. Projecting luggs on the elements by which they are held in position are tubular sectors (10) cut longitudinally those of adjacent elements together forming holes. Anchoring pins (16) expand these sectors below the frame grille bars to hold the elements together.
Patent DE-2632592-A1 (DE)
Title: Anti-dazzle system for road vehicle - has polarised head lamp lens and windscreen fitted in each vehicle
Inventor: RUEGER KURT FREDERICO DIPL ING
IPC: F21S8/10
Filed: 1976-06-28
Abstract: The motor vehicle is provided with headlamps polarised in one plane, and inclined 45 degrees to the horizontal. The windscreen is polarised or provided with a retractable polarised blind. The windscreen polarisation is parallel to the head lamp beam. The system is only effective if all road users are similarly equipped. The design works on the phenomena that a person looking through a polarised lens offset 90 degrees to the light plane will not see the light source.
Patent DE-2636541-A1 (DE)
Title: Combined heat pump and IC engine - has twin trochoidal pistons driven by common shaft and insulation between
Inventor: EGGER ROLF
IPC: F25B9/00
Filed: 1976-08-13
Abstract: The heat pump using an internal combustion engine as aheat source as well as the drive, has a trochoidal piston with two parts (3, 5) separated by an insulating partition (7) and two channels (20) between, both driven by a common shaft (6). One part (3) forms the engine piston, and the other (5) forms the expansion and compression member for the heat pump. Theheat pump has a line (10) which pases compressed and heated air through a heat exchanger (11). The heat exchanger has its circuit connected at one side to the compressor piston and at the other side to a tube (16) passing through a second heat exchanger (17) through which the exhaust gases from the engine piston pass.
Patent DE-2650871-A1 (DE)
Title: Quick release fastener for cover plate - consists of captive spindle engaging in semi-closed slot with lateral recesses
Inventor: KONRAD GUENTER
IPC: H02B1/06
Filed: 1976-11-06
Abstract: The application is typically to the mounting of cover plates or chassis in or on a framework. The removable part (6) carries a spindle (7) with, for example, a screwdriver slot (10) in its head (9). The lower part of the spindle has a cross bar (12). The frame structure to which the plate (6) is to be attached has a channel section (1) comprising a semiclosed slot with lateral recesses. To fix the plate the spindles are entered through the slot opening and then turned so that the cross bar (12) lies in the lateral recesses thereby locking the two parts together. No drilling of the framework or accurate fitting is required.
Patent DE-2655275-A1 (DE)
Title: Filter for dust-laden gas - preceded by elbow duct for centrifugal separation of coarse dust
Inventor: MARGRAF ADOLF DIPL ING
IPC: B01D46/24
Filed: 1976-12-07
Abstract: A filter for dust laden gas with horizontal filter tubes or bags, has a free space left between the free ends of the filter elements and the filter casting. An elbow-shaped duct extends over the length of the filter and discharges the dust laden gas into the free space; the larger radius of the elbow continues into the filter casing rear wall. Centrifugal action removes all coarse dust particles which pass along the rear wall straight to the dust collector hopper, effecting a precleaning and relieving the filter elements of a major part of the dust.
Patent DE-2656864-A1 (DE)
Title: Instrument for measuring weight carried by foot - has sensor which fits as insole into ordinary shoe
Inventor: LOETSCHER BERNHARD
IPC: A61F5/14
Filed: 1976-12-15
Abstract: When a fracture patient begins to exercise his mended leg again, he must put some weight on it, but not his full weight: the instrument is designed to warn him when the limit is reached. The sensor consists of a pair of electrodes, which extend over most of the area of the sole of the foot, and which are separated by a layer of material whose electrical conductivity increases when it is compressed. The material is pref. made of foamed plastic or of felted plastic fibres. The sensor pref. feeds a monitor, which warns when an upper the shold is surpassed, and may warn also if a lower threshold is not attained.
Patent DE-2707743-A1 (DE)
Title: Optical communication using modulated pulses - attenuates LF signals to improve signal-to-noise ratio by lamination of band width
Inventor: GRIESE HANS-JOACHIM DR
IPC: H04B10/60
Filed: 1977-02-23
Abstract: The optical method of transmission of information is by means of modulated pulse processes which involves only those pulses which lie in the upper part of the frequency spectrum. An optical transmitter such as an IR LED transmits a pulse train with a median frequency of 50KHz. The transmitted frequency spectrum is a line spectrum with the component frequencies of constant amplitude (1) up to a cut-off frequency. By means of a selective receiver only the upper frequencies (2) of the spectrum are allowed to pass. A typical source of interference in optical communications (such as a fluorescent tube) emits radiation which falls in the lower region (3) of the pulse spectrum and thus, by limiting the input bandwidth in this way the signal to noise ratio is improved.
Patent DE-2715415-A1 (DE)
Title: Glass building block swing wing sealing lips - are of elastic material over entire length of frame shanks
Inventor: SPRUNCK ALFONS ING GRAD
IPC: E06B7/23
Filed: 1977-04-06
Abstract: The swinging wing for a glass building block is mounted in a frame so as to tilt about a horizontal axis, and is overlapped by a sealing lips on the front side. These sealing lips (13) are attached on the two lateral frame shanks (2). They are made of elastic material, extending over the entire length of the shanks. There may also be a pref. elastic sealing lip running along the top frame shank, and on the bottom shank of the swinging wing (6). The four lips can be identical, with mitred or similar corner joints leaving no gap. PVC, or similar soft plastic, is a suitable material, and the lips can completely cover the width of the frame and swing wing shanks. This provides sealng which extends to the wing axis area relative to its frame.
Patent DE-2715887-A1 (DE)
Title: Culturing human foetal cells - and injectable compsns. contg. human foetal cells for treating heart, kidney, liver, nervous, genital and circulatory diseases
IPC: A61K35/54
Filed: 1977-04-09
Abstract: In the prodn. of human fostal cell cultures, (a) virus free human 3-6 month foetal material is cut into small pieces and washed with Hanks soln. pH 7.2; (b) the comminuted material is incubated with 25% trypsin soln. (changed every 15-30 mins.) at 37 degrees C and pH 7.5 for 20-30 mins.; (c) suspended cells are syphoned off and this procedure repeated until all cells are in suspension; (d) the resulting cells are incubated ca 2 days at 37 degrees C without agitation and dead cells are removed; (e) the cultures are incubated 3-4 days without agitation, the nutrient medium being changed every 2-4 days; (f) optionally, cells are separated from the glass walls by incubating 15-30 mins. with 0.2% trypsin soln. at 37 degrees C, and then subjected to a second incubation as in step (e); (g) when only 30% of the cells are still mitotic, the culture is centrifuged; and (h) the resulting cells are suspended in 15% glycerine-contg. phosphate buffer at a concn. of ca 2000 cells/3 mm3. Administration i.v. or i.m. in the treatment of heart disease, kidney disease, liver disease, chronic degenerative disease, circulatory disorders, genital disease and nervous disorders, and to counteract the effects of ageing. The foetal cells used must be in an indifferent state. They can be used instead of fresh animal cells in the cell therapy method of Niehans.
Patent DE-2724149-A1 (DE)
Inventor: GERNOT JACOB
IPC: E05D15/20
Filed: 1977-05-27
Abstract: The vertically displaceable window wing (1) possesses two pivotably articulated swivel mechanisms (7, 12) on each casement side. These scissor mechanisms engage via guide elements (8, 13) into lateral guide rails (9). The guide elements of the upper scissor mechanisms are connected by means of ropes (3) to a further window wing (2) which functions as a counterweight. A simple actuating mechanism for an accurate closing and opening movement is achieved in that the lower swivel mechanisms (7) carry rollers (8) which engage into the guide rails (9). At the lower end, these rails are angled outwards. At the end of the closing operation, the lower roller of each lower swivel mechanism is forced away into this angled portion. The lower casement is thereby pivoted into the window aperture. <IMAGE>
Patent DE-2724744-A1 (DE)
Title: Tip and pivot window extender bar lock - has pivotal slider and bolt with end stop on extender bar to limit bolt swing both ways
Inventor: MANDL GEORG
IPC: E05D7/02
Filed: 1977-06-01
Abstract: Mounted slider has a clamping ramp and a locking bolt which slides in an extender slot to work with the slider and clasp round this from behind in the coupled position. Both the bolt (7) and the slider (6) are pivotally mounted, the movement of the bolt being limited by an end stop (15) fixed to the extender bar (8) to allow the bolt to swing both ways through 180 deg.. Pref. a trapezoidal bolt is arranged so that the long side lies flish and tight to the associated side of the flat bar (2). The bolts stands on a baseplate (14) supported by the bar (2) so that the plate parts adjoining the ramp faces (17, 17') on the bolt work with the end stop (15).
Patent DE-2731069-A1 (DE)
Title: Knocking IC engine oscillations sensor - has washer with two flanges whose vibrations generate AC signal in winding
Inventor: GAST THEODOR PROF DR
IPC: G01L23/22
Filed: 1977-07-09
Abstract: The sensor is in the form of a washer for a cap-screw and a base (1), and it is designed to receive the force transmitted by the cap-screw. It has further two flanges (3, 4) with an annular gap (15) between them, with a narrower area (16) between the thickened parts of flanges (3, 4). Variations of the narrow gap (16) thickness, synchronous with the engine knocking frequency, generate an AC signal in a winding in the wider gap (15) between flanges. The vibrations of the flanges are excited by a sharp mechanical shock, such as is produced by detonating combustion in the engine cylinders.
Patent DE-2731551-A1 (DE)
Title: Steel angle transporting machine - uses pockets travelling past stationary electromagnets switched on to turn items over
Inventor: TAENZLER ULRICH
IPC: B65G57/18
Filed: 1977-07-13
Abstract: The machine delivers lengths of steel angle from one conveyor to a second one or to a stacking mechanism, turning them if necessary. A number of transporter members travel parallel to each other along a closed track. The members are angle-section pockets (10), between which and in the path of the lengths are stationary electromagnets (16), switched on as desired. The lengths are turned over in the pockets during their downwards movement by switching the magnets on. The pockets can be situated between two transporter arms (5, 7) rotating on separate axes, and attached to them, and there can also be an auxiliary coupling link (11) between each pair of arms.
Patent DE-2735151-A1 (DE)
Title: Warehouse despatch container for bulk goods - has locking pin with tear off indicator to highlight attempt at tampering
Inventor: SEITZ PETER
IPC: G09F3/00
Filed: 1977-08-04
Abstract: The container includes two bores lined up with each other in the container wall or in the vertical edge strip of the cover. There is also a locking pin with an enlarged head which projects through both bores which can be torn off with little force from a thin locking pin section. Side extentions act as counter hooks which splay open elastically. On the locking pin shaft there are recesses to temporarily hold the elastic side extensions of the shaft.
Patent DE-2737627-A1 (DE)
Title: Excess pressure reducer valve - has limiting valve sensor mounted inlet or outlet ensuring reclosing at set level
Inventor: BLUCK EDO
IPC: G05D16/02
Filed: 1977-08-20
Abstract: The anti failure safety system is for use in pressure reducers. The pressure reducer valve is closed when a positive reference value is reached by the limiting value measuring arrangement of the safety fitting. Similarly the pressure reducer valve can be closed if a negative reference value is reached. The limiting value measuring device can be connected into or on the outlet pipe of safety valve. It can be also connected on the outlet pipe of overflow valve.
Patent DE-2737906-A1 (DE)
Title: Dental prostheses - are made from multiphase plastics materials which can be deformed before polymerisation and set afterwards
Inventor: HERZOG HORST
IPC: A61C13/00
Filed: 1977-08-23
Abstract: Dental prostheses are produced from plastics materials which are deformed into the final shape prior to polymerisation and fixed by special setting process such that the hitherto known use of waxes, guttapercha in the preliminary stages is rendered superfluous.