baber/WOPTO huggingface dataset:
Patent DE-3262683-D1 (DE)
Title: Device for the dispersion of a solder layer on a printed-circuit board
Inventor: IMRE BAJKA
IPC: B23K1/08
Filed: 1982-09-10
Granted: 1985-04-25
Abstract: The solder applying apparatus enables applying solder to both sides or faces of printed-circuit boards travelling essentially in horizontal direction through a production or manufacturing line, and which circuit boards are not yet equipped with electrical components or the like. The apparatus contains a solder applicator means or device where liquid solder is pumped from a supply container in such a quantity that a solder wave forms over an outlet or discharge opening of the applicator device. This solder wave extends beyond the feed or transport plane of the printed-circuit boards. At the side walls of the applicator solder device there are mounted guide elements formed of metal plating or sheet metal which extend beneath the feed plane, the solder flowing-off by means of such guide elements. The angle of inclination of the metal guide elements is adjustable with respect to the feed plane. Also the spacing between the discharge opening of the applicator solder device and the feed plane is variable. Directly above or below, as the case may be, the feed plane there are arranged substantially cylindrical-shaped elements at the inlet side and the outlet side where the printed-circuit boards respectively inbound and outbound from the solder applying apparatus. These cylindrical-shaped elements are disposed at the regions of the ends of the guide elements and extend transversely with respect to the direction of feed or advance of the printed-circuit boards. These cylindrical-shaped elements function, on the one hand, as solder strippers or scrapers and, on the other hand, as limiting means for the solder blanket which during the through-passage of a printed-circuit board tends to spread-out at the upper surface or face thereof.
Patent DE-3266529-D1 (DE)
Title: Water based aerosol coating compositions
Inventor: BROUILLETTE BRUCE R
IPC: C09D5/02
Filed: 1982-06-21
Granted: 1985-10-31
Abstract: Water based aerosol coating compositions are disclosed which comprise water reducible resin, dimethylether, watter and water soluble solvent. The improved water reducible aerosol coating compositions can be cleaned up with water, produce high gloss coatings, and are non-flammable and contain no aromatic hydrocarbons such as toluene oroxylene.
Patent DE-3269745-D1 (DE)
Title: Modified copolymers of ethylene and at least one alpha-olefin, and process for their prepraration
Inventor: MACHON JEAN-PIERRE
IPC: C08F8/50
Filed: 1982-12-14
Granted: 1986-04-10
Abstract: A modified copolymer of ethylene and of at least one  alpha -olefin having from 3 to 12 carbon atoms, comprising from 0.5 to 10 mole percent of units derived from the  alpha -olefin, wherein the measured limiting viscosity of the copolymer is between 1.5 and 10 times the limiting viscosity of the copolymer calculated from the molecular weight distribution of the copolymer. Process for producing these copolymers employing at least one free-radical initiator.
Patent DE-3270041-D1 (DE)
Title: Method and apparatus for the transmission of signals, and use in the detection and/or measuring of the concentration of combustible gas in an atmosphere
Inventor: BOUTONNAT MAURICE
IPC: G01N33/00
Filed: 1982-12-14
Granted: 1986-04-24
Abstract: A process of remote transmission of signals issued by at least one sensor over a transmission line, wherein the power necessary to supply the sensor is transmitted by that line in the form of an alternating current signal of approximately constant intensity, and wherein the line fulfills the triple function of supplying power to that sensor, of transmitting interrogation signals from a central station to that sensor and of transmitting data signals in response to that interrogation signal from the sensor to the central station. A device for incorporating this process is also disclosed.
Patent DE-3270532-D1 (DE)
Title: Chemical treatment of low-grade wolframite concentrate having high mo/w03 ratio
Inventor: HUGGINS DALE K
IPC: C01G39/06
Filed: 1982-01-15
Granted: 1986-05-22
Abstract: A process is disclosed for recovering tungsten and molybdenum values from tungsten concentrates containing molybdenum in an amount at least about one-twentieth of the amount of contained WO3. The concentrate, generally a wolframite concentrate, is subjected to dissolution in hot NaOH solution to provide a pregnant liquor or solution containing tungsten and molybdenum values. The solution, after purification, is treated with a sulfide precipitation agent to precipitate MoS3 and some WS3 using a stoichiometric excess of a sulfide precipitating agent to produce a filtrate containing tungsten substantially free of molybdenum. The sulfide precipitate is dissolved in dilute NaOH solution and again precipitated using a stoichiometric deficient amount of the sulfide precipitating agent to produce a precipitate of MoS3 low in tungsten. The foregoing sulfide precipitation steps may be reversed.
Patent DE-3361497-D1 (DE)
Title: 1,3-diaza-9-thia-anthracene-2,4-diones and photopolymerizable mixture containing these compounds
Inventor: WINGEN RAINER DR
IPC: C07D239/38
Filed: 1983-08-24
Granted: 1986-01-23
Abstract: Described are 1,3-diaza-9-thia-anthracene-2,4-diones of the general formula (II)    <IMAGE>  (II)  wherein R1, R3 and R4 are identical or different and individually each denotes a hydrogen or halogen atom, an alkyl, alkoxy, carboxyl or alkoxy-carbonyl group, R2 denotes an alkoxy, carboxyl or alkoxy-carbonyl group, or two of the groups R1, R2, R3, and R4 together form a condensed aromatic radical. These compounds are used as photoinitiators in photopolymerizable recording materials and have an increased sensitivity in the spectral range between 425 and 480 nm.
Patent DE-3371239-D1 (DE)
Title: Annular blowout preventer
Inventor: JUST FRIEDRICH ERNST
IPC: E21B33/06
Filed: 1983-09-23
Granted: 1987-06-04
Abstract: An improved annular blowout preventer having a body with a central bore, an annular packer chamber facing the bore, an improved annular packer in said chamber and means for axially loading said annular packer to actuate it to closed position, said improved annular packer including a resilient annulus including an upper set of insert plates embedded in said annulus, a reaction ring embedded in the outer periphery of said annulus and means for moving said reaction ring toward said upper set of insert plates responsive to actuation of said packer loading means to ensure inward movement of said insert plates to their desired supporting position for said annulus when closed. The improved packer may have both upper and lower insert plates and upper and lower rings and a sleeve within the rings to ensure proper movement of both sets of insert plates.
Patent DE-3375699-D1 (DE)
Title: Spring steel
Inventor: ANDERSSON BJOERN HUGO
IPC: C22C38/14
Filed: 1983-09-05
Granted: 1988-03-24
Abstract: Steel and process for its manufacture which is suitable for the production of springs, especially leafsprings for vehicles. The steel which is vacuum-treated is an ordinary low-carbon steel with 0.20 - 0.40 % C. Its composition is incidentally characterised in that the oxygen content does not exceed 0.040 % and in that boron is added to an amount of 0.002 - 0.004 % and titanium to an amount of 0.015 - 0.050 %. The addition of boron causes the hardenability to increase greatly, thus making it possible to keep the carbon content low and, in consequence, reducing the danger of destructive decarbonisation. A characteristic of the process of production consists in the fact that the steel is produced in an oxygen converter in such a manner that the nitrogen content in the ladle does not exceed 20 ppm, in that it is subsequently subjected to vacuum treatment and in that Al is added so that the amount of uncombined oxygen drops to max. 40 ppm, whereafter titanium and boron are added prior to continuous casting and rolling.
Patent DE-3462528-D1 (DE)
Title: Supporting rail arrangement for a suspended railroad or the like
Inventor: HORTNAGL FRANZ
IPC: B66C7/02
Filed: 1984-08-04
Granted: 1987-04-09
Abstract: 1. Carrier rail arrangement for suspended railways, cranes or the like, having a self-supporting carrier rail (3) which may be assembled from several rail pieces, and connection, suspension and/or securing elements allocated to this rail, where the carrier rail (3) possesses a substantially I-shaped cross-sectional configuration with a hollow upper and hollow lower chord (7, 8) which are formed each as a tubular hollow body and carry the track surfaces for wheels of the suspended railway or crane vehicles and are connected with one another by a flat web (10) extending in the central plane (9) of the chords (7, 8), which web is provided with at least one row of holes extending in the longitudinal direction, to which retaining elements for current collectors, destination control elements or the like are anchored, characterised in that the retaining elements are pre-stressed spring straps (70, 80) which are hooked into corresponding holes (18) of the row of holes and supported against the web (10) and/or a chord (7, 8) and in that each spring strap (70, 80) comprises a widened back part (87) on which there is secured at least one retaining clip (68, 89) of substantially U-shaped cross-section for a live rail (32) or the like.
Patent DE-3466766-D1 (DE)
Title: Manual pipe cutter
Inventor: COURTY AURELE
IPC: B23D21/08
Filed: 1984-03-05
Granted: 1987-11-19
Abstract: A manual pipe cutter that comprises a cutting disc (29) and a cutter-pressing jaw (27) to press the cutting disc edgewise against a pipe to cut it, and has a pushbutton (32) and gear (33-36) arrangement for convenient operation and forceful pressing of the cutting disc (29) edgewise against the pipe (25). This manual pipe cutter further comprises a body (10) defining a cutting head portion (13) and a handle portion (14), a cutting head (16) rotatable in the cutting head portion (13) of the body (10) and cooperatively forming with it a pipe passage and an open mouth (15) to position a pipe (25) transversely into the pipe passage, a pawl and ratchet to rotate the cutting disc (29) around the pipe, and a system (30, 31, 33) to release the movable jaw (27) and return it to its outermost position. In another simpler and less automatic embodiment, the pushbutton and gear arrangement, together with the disc-releasing system, is replaced by a manually-rotated knob at the end of a bolt displacing a cutting disc-carrying jaw towards and away from the pipe.
Patent DE-3468241-D1 (DE)
Title: Carding plate
Inventor: JACOBSON SVEN-GUNNAR DIPL ING
IPC: D01G15/24
Filed: 1984-10-05
Granted: 1988-02-04
Abstract: 1. An elongate carding plate for a carder used for carding fibre material, which carding plate is to co-operate with the coating of the drum and has a rod-shaped, rigid, support, on the side of which co-operating with the coating of the drum is arranged a row of plates forming a tooth bed extending approximately parallel to the axis of rotation of the drum, which plates are arranged on a face of the support approximately perpendicular and parallel to one another and abut one another with their broadsides, at least a number of the plates being tooth plates, which are toothed on their longitudinal sides remote from the support in order to form the teeth of the tooth bed, and the plates of the row of plates being held by clamping means arranged on the support, characterised in that the plates (15, 16) of a row of plates (12a; 12b; 12c; 12d) forming a tooth field form at least one pack held together per se, the plates of the pack having recesses (24), which form at least one straight first channel (24') penetrating the pack, which channel is penetrated by a clamping device (26, 27) holding the plates of the pack together and pressing them against one another, and that the plates of the pack on their narrow sides facing the support (11) have recesses (30) having respectively at least one undercut, which recesses form at least one second channel (30') of the pack open towards the support, the clamping means (32, 39) of which press the pack against the support engaging with the undercut face, of which there is at least one, and which is formed by at least one undercut, on the pack.
Patent DE-3469836-D1 (DE)
Title: Circuit arrangement for adapting an amplifier with an inductance in the emitter circuit to a filter with an input inductance
Inventor: CEBE LASZLO DIPL ING
IPC: H03F1/56
Filed: 1984-12-27
Granted: 1988-04-14
Abstract: 1. Circuit arrangement for adapting an amplifier (E) with an inductance (Le ) adjustable for the purpose of level control in the emitter circuit to a filter (Sz) with an input inductance (L1 ), particularly for transmission transfer devices, the input of the circuit arrangement being formed of the base of the transistor (T) of the amplifier and ground and the output being formed of the active point of the output of the filter (Sz) and ground, characterised in that the circuit arrangement is developed as a simple quatripole network in that the collector of the transistor (T) of the amplifier (E) is connected to the part (Sz0 ) of the filter (Sz) remaining without input inductance via a resistor (R1 ) terminating the input of the filter (Sz), and that the input inductance (L1 ) is provided between ground and the common point of the collector of the transistor (T) of the amplifier (E) and of the resistor (R1 ) terminating the input of the filter (Sz).
Patent DE-3475342-D1 (DE)
Title: Energy-efficient evaporation process with means for vapor recovery
Inventor: MERTEN ULRICH
IPC: F26B21/04
Filed: 1984-03-07
Granted: 1988-12-29
Abstract: In a process for the recovery and reuse of heat contained in the wet exhaust gases emanating from a solids dryer or liquor concentrator (1), particularly one in which drying or concentration is facilitated by purging the vapor with some noncondensable gas such as as air or nitrogen, water or solvent vapor in the moist exhaust mixture is separated from the noncondensable gas or gases by preferentially passing the vapor through a semipermeable membrane (2). The water or solvent vapor is then compressed and subsequently condensed in a heat exchanger (4), permitting recovery of its latent heat of vaporization for reuse in the evaporation process. In a drying process, this recovered energy is conveniently used to reheat the dry gases that exit from the membrane separator (2) permitting the hot, dry gases to be recirculated through the dryer (1). Alternatively, an indirect heat exchanger may be used to transfer this heat to the material being dried. In an evaporative process for the concentration of a liquor, the recovered energy may be used either to preheat the dry purge gases or to heat the dilute liquor being concentrated.
Patent DE-3476008-D1 (DE)
Title: Hearing aid having a housing to be worn behind the ear
Inventor: BUTTNER GERHARD
IPC: H04R25/00
Filed: 1984-09-10
Granted: 1989-02-09
Abstract: A hearing aid has a behind-the-ear housing containing a microphone, an amplifier, a current source and an ear phone, and a group of regulators for controlling various operating characteristics and an acoustic coil. The regulators and the acoustic coil are insertable through an opening in the rear of the housing and are combined in a single unitary unit which can be attached to the amplifier. The precise orientation of the regulators and the coil with respect to each other is thus always the same and can be easily achieved during assembly. The necessary electrical separation between the parts is also guaranteed.
Patent DE-3479289-D1 (DE)
Title: Immune response to tumours and viruses induced by anti-idiotype antibodies
Inventor: DEFREITAS ELAINE
IPC: C07K16/00
Filed: 1984-10-25
Granted: 1989-09-14
Abstract: Anti-idiotype antibodies, their production and their use in inducing an immunological response to viruses.
Patent DE-3483207-D1 (DE)
Inventor: MENGES EDUARD
IPC: F24D13/02
Filed: 1984-12-19
Granted: 1990-10-18
Abstract: 1. An electrical device for use as a panel heating element, having a base plate (4, 4'), a cover plate (38, 38') and having a heating foil (6, 6"') which is disposed between base plate and cover plate and which is supplied with current by means of contact strips (8, 8"', 10, 10"') arranged at two of its opposite margins, via an external connection with at least two contacts, the external connection being formed in the region of a recess in the composite structure and a contact-making projection being provided at a further marginal region for the electrical connection of two or more panel heating elements, characterised in that a) the external connection is constructed in the form of half of a plug-and-socket connection, (12, 12"', 14, 14"', 13, 13", 15, 15"), b) the electrical contacts of the half of a plug-and-socket connections are arranged outside the recess (24, 26) in the composite structure so that the plug in direction (A, B) extends substantially parallel to the plane of the panel heating elements, c) the contact-making projection is constructed in the form of a complementary half of a plug-and-socket connection (30, 32, 34), and d) the complementary half of a plug-and-socket connection (30, 32, 34) is so formed that, in the plugged together state, it fills the recess (24, 26) so as to lie flush.
Patent DE-3484498-D1 (DE)
Inventor: FINCH TIMOTHY DAVID
IPC: C11D3/39
Filed: 1984-11-02
Granted: 1991-05-29
Abstract: A stable manganese adjunct for use as a bleach catalyst is obtained by having a manganese (II) cation bound to a "ligand" forming either a true complex compound, a water-insoluble salt compound, or an ion-binding compound by adsorption, which compound is then protectively enclosed in a matrix of water-soluble or water-dispersible material.The adjunct is particularly suitable for incorporation in fabric-washing powder compositions containing a peroxide bleach without causing instability to the composition and brown discolouration due to Mn0<sub>2</sub> formation.
Patent DE-3486177-D1 (DE)
Inventor: MILLER RONALD B
IPC: A61K31/74
Filed: 1984-12-07
Granted: 1993-08-19
Abstract: Antihypertension action is achieved without diuresis by administration of a thiazide diuretic in an amount which while being sufficient to achieve anti hypertension is insufficient to achieve diuresis. Such administration in a non-diuretic amount is effected in 4-8 consecutive hourly doses to achieve reduction of blood pressure without high urine output. The invention further relates to complexes of thiazides with mixed cation-anion exchange resins, to insoluble basic metal hydroxy thiazide salts, the salts of thiazide with calcium disodium edetate or disodium edetate, to molecular complexes of thiazides with long chain polymers such as hydroxy alkyl cellulose polymers, carboxy methyl cellulose and polyvinylpyrrolidone, to beta-adrenergic blocking amine-thiazide salts and to amiloride thiazide salts.
Patent DE-3560819-D1 (DE)
Title: Lifting conveyor
Inventor: KOSTREWA LUDWIG
IPC: B65G21/12
Filed: 1985-09-07
Granted: 1987-12-03
Abstract: 1. A steep conveyor having a joint for pivoting its lower part outwards from the extended position and an endless belt band or the like, which has pockets, buckets or the like and the lower portion of whose lower end is bent in the pivoting direction, characterized in that the pivot (2, 2') of the joint lies outside the support of the belt band on the outward pivoting side, while at the same time forming the centre of circular upper guideways for the two runs of the belt band, the start of the possibly downward continuing support of the runs on the guideways lying substantially in the horizontal plane of the pivot (2, 2') ; the bent end (5, 5', 5'', 5''') of the band belt has at the start of the bent circular lower guideways which have the same radii as the upper guideways and can pivot around their axis, also disposed on the outward pivoting sides ; and the upper and lower guideways each extend in the peripheral direction at least far enough for the bands to retain the appropriate guideway radius in every outward pivoting position.
Patent DE-3566316-D1 (DE)
Title: Storage unit constituted by a stack of boxes
Inventor: POSSO PATRICK PIERRE PHILIPPE
IPC: G11B33/04
Filed: 1985-07-01
Granted: 1988-12-22
Abstract: Arrangement constituted by a stack of boxes intended to contain drawers, in particular for the storage of audio and video recording tapes. The boxes have different dimensions. The widths and heights of the boxes are dimensioned to adapt to the contents and to allow a large number of combinations. On their upper side, the boxes comprise profiled ribs on which are fitted grooves of matching profile provided on a lower side of the boxes.
Patent DE-3570914-D1 (DE)
Title: Water heater construction and method of manufacture
Inventor: VAGO OTTO Z
IPC: F24H1/18
Filed: 1985-03-11
Granted: 1989-07-13
Abstract: A water heater tank assembly having a shell with top and bottom heads welded in opposite ends thereof. The heads have aligned flue tube mounting openings therein in which metal collar members are welded. Flue tubes are mounted in and welded to the collar members. The collar members serve as a heat sink to prevent damage to the glass lining on the shell, head members and flue tubes during the various welding operations.
Patent DE-3571486-D1 (DE)
Title: Incrementally variable single countershaft transmission
Inventor: KERR JOHN HUGH
IPC: F16H37/04
Filed: 1985-04-29
Granted: 1989-08-17
Abstract: Transmission unit comprising coaxially mounted input and output shafts (1, 4) with one gear element 6, 8, 10, 23, . . . of each pair in a sequence of gear-pairs fixed to a countershaft, with the second gear element (5, 7) of the first two pairs free to rotate on the input shaft and the remaining second gear elements 9, 22, . . . free to rotate on the output shaft. The ratios of the 1st and 2nd pair are referenced from the input to the countershaft with the ratios of the remaining pairs referenced from the countershaft to the output shaft. 
<??>The gear-pairs selected in continuum by a shift gate mechanism 16 with profiled slots that move shift forks and sliding dog couplers between each gear-pair so that either the 1st, or 2nd gear-pair is coupled to the input shaft in separate combinations with each of the remaining gear-pairs that are coupled to the output shaft, 
<??>The order of mutual dependency in the combinations of gear-pairs requires that the ratios in the sequence be substantially X*y, y, X<2>/y, ... X<2(N-1)-2>/y  where:
 N is the total number of gear-pairs, y is the ratio of the 2nd gear-pair, and X is the basic increment of change in the effective ratios. The total number of ratios in the transmission comprising a series of transmission units is the product of the number of ratios in each of the units, with the ratios in the sequence of gear-pairs in any added unit of the same order as any unit, but with the ratio of the first gear-pair X<n> in any added unit substantially equal to X multiplied by the maximum ratio of the unit up to the addition of the next unit in the series.
Patent DE-3575022-D1 (DE)
Inventor: SHAKELFORD CARL L
IPC: G01N30/60
Filed: 1985-02-26
Granted: 1990-02-01
Abstract: First end portion (16) of tube (12) which is filled with sorbant packing material (14), is fitted with a plug (20) having a passage (30, 36) therethrough. The plug (20) lies adjacent the material (14) and is movable within the tube (12). An end fitting (42) is also employed which has a portion located within the tube (12) adjacent the plug (20) and a passage (46, 50) therethrough which communicates with the passage (30, 36) of the plug (20). The end fitting (42) and the plug (20) are held together, e.g. by threaded engagement, and a seal (54) is used inside the tube (12) between these. The second end portion (18) of the tube (12) is also closed by means (90) which includes a passage (92) from the interior to the exterior of the tube (12). 
<??>These arrangements at the ends of the tube (12) provide a good seal and allow pressure to be exerted on the packing material to obviate previous irregularities. Moreover all the fittings are re-usable.