baber/WOPTO huggingface dataset:
Patent DE-2547504-A1 (DE)
Title: A D coder comparing input with reference voltages - omits logic at comparator output to increase speed
Inventor: TIMSIT CLAUDE
IPC: H03M1/00
Filed: 1975-10-21
Abstract: The A/D coder compares the analog input voltage with a series of reference voltages and requires no logic circuitry at the comparator's output. It is therefore faster than similar coders. The result of each comparison is added to the inverted result of the following comparison to form a first sum signal. The inverted result of each comparison is added to the result of the following comparison to form a second sum signal. The two sum signals are compared to determine the least significant bit. Each first sum signal is compared with the corresponding second sum signal to determine the 2., 3. etc. bit up to the highest significant bit.
Patent DE-2552986-A1 (DE)
Title: Controlling refining of hematite iron - by measuring converter noise intensity
Inventor: DAUBY PIERRE
IPC: C21C5/30
Filed: 1975-11-26
Abstract: Refining of hematite iron by blowing industrially pure O2 through >=1 tuyere situated below the melt surface is controlled by (a) measuring the intensity of teh noise during O2 blowing, (b) determining the reference value of the sound intensity corresp. to the value imposed by the C content of the melt according to the relationship previously established between these 2 magnitudes, and (c) stopping O2 blowing when the value supplied by the pick-up for the intensity of sound from the converter corresp. to the reference value. Used for bottom blow refining of hematite iron partic. using a twin coaxial tube tuyere. Allows carbon end-point to be determined without premature tilting of the converter.
Patent DE-2553789-A1 (DE)
Title: Defect location system for insulated pipelines - has HF cable with meltable metal core surrounding pipeline in spiral winding and connected to electronic system
Inventor: HERBRIK RICHARD DR
IPC: G01M3/16
Filed: 1975-11-29
Abstract: The system is for location of defect sections in an insulated pipeline, e.g. in a pipeline through which a hot fluid flows. The total length of the pipeline is surrounded by at least one spiral wound HF coaxial cable (1) which is laid in contact with the pipeline (7). The HF cable (1) acts simultaneously as a sensor lead, and contains a meltable metal (5) in its interior and is connected to an electronic device which is controlled by impulses send along the cable. If the cable is damaged by excessive heat causing the metal (5) to melt, this is detected and indicated on the electronic device.
Patent DE-2557989-A1 (DE)
Title: Tubular pump or turbine arrangement - has rotor rim supported by hydrostatic bearing inside flow tube
Inventor: MILLER HELMUT DIPL ING
IPC: F03B13/10
Filed: 1975-12-22
Abstract: Turbine or pump arrangement has a rotor with a horizontal axis of rotation. The rotor has a solid rim (8) which is connected by fixed vanes (3) to the rotor hub. A laminated rotor pack (9) mounted on the rotor rim forms part of an electric motor or generator (10). The rotor rim is mounted directly in the tubular section (7) of the turbine/pump arrangement. The rotor rim is supported in the turbine/pump housing by hydrostatic support bearings, which are in the form of self centring pistons which support the rotating unit at a number of points without making contact with it. The function of the support pistons is to take up dynamic forces on the rotor and to support its static weight.
Patent DE-2611019-A1 (DE)
Title: Modified epoxide resin compsn. for spectacle frame prodn. - contg. polyether-diamine and trimethyl deriv. of hexamethylene-diamine
Inventor: RAMIREZ PETER R
IPC: C08G59/50
Filed: 1976-03-13
Abstract: Compsn. contains ca. 15 (wt.) pts. polyether-diamine (I) and 10 pts. trimethyl deriv. (II) of hexamethylene-diamine per 100 pts. trimethyl deriv. (II) of hexamethylene-diamine per 100 pts. nosphenol A epoxide resin (III), which pref. has an epoxide equiv. wt. of ca. 190. The compsn. has a better softening temp. and hardening time. In an example, a mixt. of 100 pts. (III), 15.6 pts. (I) and 10.4 pts. (II) cured in 15 mins. at 85 degrees C to a prod. with an impact strength of 1.1 ft. lb./in. and a softening temp. of 75 degrees C.
Patent DE-2616275-A1 (DE)
Title: Acrylonitrile prodn. by reaction of acetonitrile with methane - using an initiator of potassium or calcium halides or bismuth or molybdenum oxides
Inventor: SCHTSCHEJAN SCHATSCHIK JEGOROV
IPC: B01J23/28
Filed: 1976-04-13
Abstract: Acrylonitrile (I) is made by reacting acetonitrile (II) with CH4 at 650-1000 degrees C using a volume rate of 1000-23000 hr-1, in the presence of an initiator consisting of halides of K or Ca, bismuth oxide, molybdenum oxide, or mixts. of these. Pref. initiators are KCl, KBr, CaCl2, CaBr2 and a 1:1 mixt. of bismuth oxide and molybdenum oxide. The catalyst may be mounted on a suitable carrier such as quartz, corundum, diatomaceous earth, TiO2 or pumice. The named initiators improve the conversion of (II) and the yield of (I), and reduce the formation of by-products such as propionitrile and HCN. Output of (I) from the process is increased 1.5 - 2 fold compared with prior art processes.
Patent DE-2616814-A1 (DE)
Title: Shearing blade assembly method - has handle engagement shaft fitted between U-shaped grip arms and has securing lugs
Inventor: RAINE RAYMOND
IPC: B26B13/12
Filed: 1976-04-15
Abstract: Assembly method for a cutting tool which comprises a handle, such as a shearing blade, and in particular for fixture of a smooth handle engagement part to a hand grip, involves a shaft section (12) of the handle engagement part (11) located in a position between the two arms (4, 5) of a U-shaped grip piece (2). It also locates in a circular hole (13) in the shaft section coaxial to corresponding holes (6) in the two arms (4, 5). A connecting sleeve (16) fits through the three holes, and lugs (7, 9) are fitted on both sides of the arms, overlapping each other. The bases (8, 10) of the lugs (7, 9) are displaced away from each other, and the lug tops are pressed in a recess (14) in the shaft section (12).
Patent DE-2619897-A1 (DE)
Title: Corrosion inspection of nickel alloys, esp. turbine blades - where variation in magnetism produces micro voltage in nondestructive test
Inventor: WALTHER HELMUT
IPC: G01N27/82
Filed: 1976-05-05
Abstract: Device for testing the state of corrosion of nickel alloy objects, uses a socket contg. a sensor bar connected to a strain gauge transducer which emits an electric signal proportional to the axial tensile stress on the sensor bar. The free end of the sensor bar is fitted with a permanent magnet surrounded by a distance ring made of non magnetic material, the ring being axially adjustable on the socket; and the free end of the ring projects beyond the free end of the magnet and can be applied to the surface of the object being tested. A long magnet is pref. used which is surrounded by a ring consisting of a tube which can be screwed onto the socket. Used, e.g. in the non-destructive inspection of a degree of corrosion of nickel superalloy turbine blades used in jet engines or power station generating plant. A portable appts. suitable for periodic inspection of blades in situ. is provided.
Patent DE-2622720-A1 (DE)
Title: Door lock with card and solenoid actuation - has solenoid actuated clutch and photoelectric monitor for lock operation
Inventor: MATZANKE BRUNO
IPC: E05B45/06
Filed: 1976-05-21
Abstract: The door lock is operated by a coded card for releasing the locking mechanism. The locking and opening condition is monitored and the monitoring arrangement cannot be manipulated from outside. Between the door lock nut (34) and catch (14) is arranged a solenoid (66) actuated clutch (44, 45, 54) which is disconnected after each lock actuation. The solenoid (66) is energised by a card actuated card reader. The monitoring arrangement is a photoelectric switch (70, 72) within the lock. Its switching positions depend on the position of the door lock catch (14). The clutch has an eccentric bracket (54) actuated by solenoid into connecting position.
Patent DE-2628738-A1 (DE)
Title: Folding protective cover for buildings under erection - consists of rod system hinged to central post for polygonal cover
Inventor: SCHILLING JOCHEN
IPC: A45B23/00
Filed: 1976-06-25
Abstract: The folding cover consists of a system of rods which are hinged to a central post (3) and which have a folding covering stretched over them. The base area of the cover is in the shape of a regular polygon without joins in. The outer edges are formed of edging bars (2) which are rigid and which are joined together by means of links (11, 12) and to which the covering is anchored so as to be tension-proof and impermeable. The edging bars (2) have flexible sealing strips pointing outwards. The rod system incorporates radial, downward tilting rods hinged to the top (5) which can be extended upwards in a telescopic part. The tension rods (4) hinged to the bars (6) in the centre are hinged to the post (3) underneath the top (5). Connecting links (11) and corner links (12) join the edging rods (2) and the bars (6). A funnel which is open upwards and fits into the annular gap between the post (3) and the telescope is at the top of the post (3).
Patent DE-2637650-A1 (DE)
Title: Water heater for making drinks - has bimetal spring expanding to release spring lid that breaks electric supply
Inventor: KALLUS FILIP
IPC: H01H3/16
Filed: 1976-08-20
Abstract: A tea or coffee making vessel has an immersion heater inside a suitably sized container and a thermostat that switches off the electricity supply when a given water temperature is reached. The container (4) has a hinged lid (8), and a helical spring (22) inside the handle tends to open the lid. The lid is held closed by a circular spring (104) consisting of a bimetal strip located in a slot around the underside of the lid. When a given temperature is reached the circular spring expands and releases the lid, which the springs open. As the lid opens, a contact fixed to it breaks with a contact near the lip of the container and interrupts the electricity supply.
Patent DE-2637953-A1 (DE)
Title: Trimming system for frequency modulated oscillator - compares signal with that of quartz reference oscillator and uses comparator to derive correction signal
Inventor: EILTS DIETER ING GRAD
IPC: H03C3/09
Filed: 1976-08-24
Abstract: The procedure is for trimming the frequency of a frequency of a modulated oscillator, the signal from which is compared with that of a quartz reference oscillator in a phase comparator to derive a correction signal, in which the frequencies of the two oscillators are divided down to very low frequencies in dividers (FT1, FT2). In the phase comparator (PK) pulses are generated with the same starting point in time and with pulse lengths depending on the frequency difference. From the difference in pulse lengths, a correction signal is derived. The system has a high degree of accuracy at all modulation levels.
Patent DE-2638830-A1 (DE)
Title: Glass tubes coated internally by chemical vapour deposition - using zone heating, to mfr. blanks drawn into optical fibres
Inventor: DAKIN JOHN PHILIP DR
IPC: C23C16/04
Filed: 1976-08-28
Abstract: Appts. for coating the internal surfaces of hollow objects, esp. tubes by feeding a gas mixt. through the tube for chemical vapour deposition. The tubes are aligned vertically, pref. in a row, between two horizontal, perforated end plates. A heating device moves up or down between the end plates, and is located round the tubes so part of the length of each tube can be heated during the travel of the heating device. The heating device is pref. graphite, and includes a block contg. a row of holes in which tubes are located; the graphite block forms a travelling furnace heated by electric resistance and located inside a double jacket carrying coolant, or is provided with outer coolant channels; at least the graphite heating element is pref. located in an inert gas atmos. Esp. used for coating the bores of glass- or quartz-tubes to make a blank subsequently drawn into optical fibres with low attenuation. The invention provides an inexpensive method for producing the blanks.
Patent DE-2643317-A1 (DE)
Title: Electric cable roll up appts. - uses leaf spring pressure set between flanges of roll up drum and fixed at one end outside drum dia.
Inventor: HOFFMANN RUDI
IPC: H02G11/02
Filed: 1976-09-25
Abstract: Electric cable unroll or roll up appts. comprising a cable drum with an electric lead that can be wound up between the flanges of the drum is designed to prevent functional disruptions to the electric lead during the roll up or unrolling processes. To this end, a flexible pressure element that can be displaced in a direction transverse to the axis of rotation of the cable drum is provided between the drum flange(s). The width of the pressure element corresponds to the clear width between the drum flanges, and grips or presses on the outermost winding(s) of the electric lead. The pressure element is designed as a leaf spring fixed at one end external to the drum dia.
Patent DE-2649928-A1 (DE)
Title: Accelerating silver bleaching in photographic processing - using heterocyclic cpd., e.g. quinoxaline or naphthazine deriv.
Inventor: NAKAMURA TAKASHI
IPC: G03C5/38
Filed: 1976-10-29
Abstract: Acceleration of Ag bleaching in photographic processing is achieved using heterocyclic cpd(s) of the formulae In the formulae X and Y are N, S, O, CO or CNR. R and R1-4 are H, 1-5C alkyl, NH2, NO2, OH, Ph or SO3Na. R5-6 are H or complete a condensed aromatic ring. Z completes a heterocycle of the pyrrole, uracil (opt. with R-substd. N atoms), quinone or R-substd. imidazole or imidazolium salt type. If (II) is a naphthazine cpd. R1/R2 or R3/R4 form a benzene ring condensed with the adjacent benzene ring. The Ag bleach solns. are relatively stable, less corrosive than usual and free from harmful substances, e.g. ferricyanides. They can be converted to powder form for ease of transportation. In an example, the addn. of 2g/l 2,3-dimethylquinoxaline increased the Ag bleach activity of Ag bleach baths of the FeCl3, K3Fe(CN)6, K2S2O8, K2Cr2O7 and m-O2N. C6H4.SO3Na type and a FeIII-EDTA blix bath.
Patent DE-2711378-A1 (DE)
Title: Traffic lights for road intersection - includes pre-warning signal combined with green light actuated several seconds before end of green phase
Inventor: KLEIN KONRAD ING GRAD
IPC: G08G1/095
Filed: 1977-03-16
Abstract: The traffic lights for a road intersection comprise red yellow and green lights (1 2 3) actuated in sequence and an additional pre-warning light (4) which is combined with the green light (3). The pre-warning light is actuated a short time before the green phase ends and remains illuminated until the end of the green phase. Pref. the pre-warning light (4) comprises a white light surrounding the green light which is actuated several seconds before the end of the green phase to warn motorists to keep the road junction clear.
Patent DE-2712829-A1 (DE)
Title: Charged particles injector ion source - has cylindrical housing, in which hollow ring contains source annular anode and cathode
Inventor: KOVALSKIJ GEORGIJ ALEKSANDROVI
IPC: H01J27/14
Filed: 1977-03-23
Abstract: The ion source for the charged particles injector generates a hollow cylindrical ion beam. It has an annular anode (10) and an annular cathode in a cylindrical housing (1) with face sides. One side has an axial aperture and the other one is closed and rigidly connected to one end of a rod (4), whose other end carries a disc (5) of soft magnetic material, forming an annular gap for ion discharge with the axial aperture. The annular cathode and anode are surrounded by a hollow ring (7) mounted coaxially in the cylindrical housing and insulated from the same. The side face (8) has an annular gap directed to similar gap in the other side face (3). Outside the side face (3) is coaxially mounted a heating cathode (11). The entire assembly is of soft magnetic material, with the exception of the hollow ring which is non-magnetic.
Patent DE-2713544-A1 (DE)
Title: Preventing incrustations on surfaces in aq. systems - using chemical to form thin film on contacting surface
Inventor: HOFMANN FRIEDRICH DIPL ING
IPC: B01D53/48
Filed: 1977-03-28
Abstract: A process to prevent the formation of incrustations on surfaces brought into contact with aq. solns. contg. substances having a tendency to separate in the crystalline state, esp. in installations for desulphurising gas fumes using solns. contg. alkali or alkaline earth metal ions as absorbing agents or in measuring devices immersed in such solns. comprises adding to the aq. solns. a chemical substance giving rise to the formation of a thin protective film on the contacting surfaces. The process is esp. applied to appts. for physical and chemical measurements in aq. medium. The process avoids blockages and also erroneous measurements.
Patent DE-2714955-A1 (DE)
Title: Oxidn. hair dye compsn. - contains quinoline or tetra:hydro-quinoline deriv. coupler and tetra:amino-pyrimidine developer
Inventor: ROSE DAVID DIPL CHEM DR
IPC: A61Q5/10
Filed: 1977-04-02
Abstract: Parent Patent disclosed oxidn. dye-based hair dyes contg. tetraaminopyridimines, (II), as developers. The present addn. contains, as couplers, quinoline- or tetrahydroquinoline derivs. (I) of formula (Ia) or (Ib). (where R1 is NR" R'" in which R' and R" are H or 1-4C alkyl, R2 is H or OH; R3 is -NR'R" in which R' and r" may also be OH; R4 is H or 1-4C alkyl, provided that if r2 = OH, R1 and R3 are H). The hair-dyes may be used as creams, emulsions, gels or solns., at pH 8-10, 15-40 degrees C. Fast, stable, nontoxic, non-irritant, intense yellow to brown shades are achieved. In an example, cream emulsion hair-dye contained (1) 7-hydroxyquinoline,(2) 6-amino-8-hydroxyquinoline and (3) 6,8-diamino-1,2,3,4-tetrahydro-N-ethyl -quinoline as (I) and 2,4,5,6-tetraaminopyrimidine as (II).
Patent DE-2726518-A1 (DE)
Title: Corner brackets for sections of vaulting horse - have slotted holes for adjustment to ensure accurate fit of adjacent sections
Inventor: KEPKE MANFRED
IPC: A63B5/12
Filed: 1977-06-11
Abstract: Vaulting horse is built up from three or more sections(2, 5, 3) which are placed one above the other. In order to ensure accurate alignment of adjacent sections special corner brackets(8) are used. These corner brackets(8) have a joggled extension which overlaps the corner bracket of the adjacent section. The brackets have slotted holes to receive fixing screws to fasten them to the inner surface of the sections(2, 5, 3). The slotted holes allow a degree of adjustment to ensure that each section is a close fit in the section above. The corner brackets(8) may be sand cast or die-cast.
Patent DE-2726633-A1 (DE)
Title: Welded mine roof support plate - consists of sheeting channels with stiffening ribs, supporting top, end and side plates
Inventor: KNIPPSCHILD GUSTAV
IPC: E21D17/00
Filed: 1977-06-14
Abstract: The rectangular structure made from sheet steel sections welded together, forms the roof support for a mine support unit. The structure incorporates a row of U section beams (3) forming the longitudinals, and welded together. These are of sheet steel, and thick stiffening plates (14) are welded inside, at front and rear, at right angles to their length. A closure plate (6) is welded over the open tops, made of front (7) and rear (8) pieces, butt welded together by a lateral weld, these have end cut-outs for end closure plates (12). Side plates (17, 20, 21) which hang down underneath have holes (18) for a hinge spindle.
Patent DE-2727185-A1 (DE)
Inventor: POTRYKUS GERHARD
IPC: F16K11/16
Filed: 1977-06-16
Abstract: The device serves to protect high-pressure feed-water preheaters in steam power plants. These feed-water preheaters are provided with a shut-off valve and a reversing valve which are acted upon by internal medium. To control these valves, an auxiliary valve (8) is provided which consists of a control valve (10) and a shuttle valve (11) which are accommodated in a common valve housing (9). The shut-off cones (12, 20) of the control valve (10) and of the shuttle valve (11) are provided with a return position in each case in the opposite direction. One and the same valve spindle (15) acts on the shut-off cones (12, 20) in each case against the restoring force. This device guarantees the operating reliability of the shut-off valve and the reversing valve and keeps down the cost for the control of the same. <IMAGE>
Patent DE-2727728-A1 (DE)
Title: Internal combustion engine exhaust system and silencer - uses tubes with multiple bores to cool exhaust gas
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N13/18
Filed: 1977-06-21
Abstract: A silencer forming part of the exhaust system of an internal combustion engine consists of two concentric tubes (51, 52). These tubes are joined by radial walls (55) which extend longitudinally so that the annular space between the tubes is divided into a number of separate compartments (5). A cooling fluid flows in these compartments (5) in the opposite direction to the flow of gas in the central bore (50). The outer wall of the outer tube (52) has a number of radial fins (56) which also extend longitudinally. These fins help to dissipate the heat which has been transferred to the cooling medium by convection and radiation.
Patent DE-2731392-A1 (DE)
Title: Four stroke cycle reciprocating IC engine inlet poppet valve - has spring loaded conical sleeve upstream to act as non-return valve on same seat
Inventor: THALHOFER AUGUSTIN
IPC: F01L1/28
Filed: 1977-07-12
Abstract: The 4-stroke cycle reciprocating IC engine inlet valve is basically a conventional cam operated poppet valve(6). A conical sleeve(10) of slightly smaller dia. has been added, free to slide on the valve stem and seating against an upstream extension(14) of the conical valve seat(8). When the poppet valve opens a helical spring(18) around the stem separates the sleeve from it, to act as a non-return valve. A collar spring(21) between sleeve and valve guide(19) softens the impact on the seat. When the poppet valve is closed the sleeve fits into a recess(17) in the upstream face of the valve with the two seating surfaces(7, 13) either level or the valve surface slightly proud.
Patent DE-2734084-A1 (DE)
Title: Electrolytic prodn. of chlorine and alkali phosphate - using ruthenium coated electrodes as cathodes
Inventor: RAMP FLOYD LESTER
IPC: C25B11/04
Filed: 1977-07-28
Abstract: In the prodn. of Cl2 by electrolysis of an aq. alkali metal chloride soln. and phosphoric acid in aq. soln., a hot conc. aq. anolyte soln. of the alkali metal chloride is contacted with one side of a cation exchange membrane, and a hot aq. catholyte soln. of phosphoric acid contg. ca 10-70 wt. % H3PO4 is contacted with the other side of the membrane. The cathode used consists of a conducting metal coated with ruthenium metal. A direct current is passed in series through the solns. and the membrane. The cation exchange membrane has a normality of ca 0.2-10 N, and the solns. have attemp. of ca 80-110 degrees C. Cl2 gas is collected from the anolyte soln., while H2 gas is collected from the catholyte soln. At least part of the alkali metal phosphate formed in the catholyte soln. is recovered as a prod. of the process. The process gives highly pure Cl2, H2 and alkali metal phosphates. When a KCl soln. is used as anolyte, highly potassium phosphate salts with any desired K:P molar ratio (suitable for the prodn. of fertilizers or detergents) can be produced. Current consumption is low. The ruthenium-coated cathode is resistant to the corrosive conditions in the cathode space, and gives a low hydrogen potential on the cathode.