baber/WOPTO huggingface dataset:
Patent DE-2918800-A1 (DE)
Title: Sample cells for photometric analytical appts. - where cells are made of plastic, and are welded together in circular row to make centrifuge ring
Inventor: RAHM JUERG
IPC: B04B5/04
Filed: 1979-05-10
Abstract: Each cell consists of a reagent chamber (2), a sample chamber (3), and a measuring chamber (4). The cells are made of a thermoplastic polymer and are arranged in a circular row so that all chambers (4) are horizontal and extend radially outwards from the circle, whereas the main axes of chambers (2,3) are vertical. The upper edge of each cell is provided with a tongue which extends sideways so it partly or completely covers the next cell, to which it is welded. When the circle of joined cells is centrifuged, the liqs. in chambers (2,3) flow into and are mixed in, chambers (4) in each cell. Used esp. in clinico-chemical analyses, where microcapsules of blood, serum, plasma, urine etc. must be rapidly analysed in automatic appts. using a centrifuge.
Patent DE-2919461-A1 (DE)
Title: Rail fixture to wooden transverse or long sleepers - involves initially arched plates clamped and deformed flat onto surfaces
IPC: E01B/
Filed: 1979-05-15
Abstract: An underlay plate, or two support plates in conjunction, are screwed or otherwise anchored, and have the rail foot elastic form-locked on or between them, in fixing rails on cross and/or lengthways sleepers or sleeperless support points. The plate (4) and/or plates, for track and junction points, are of initial shape arched inwards and downwards from the edges. They are clamped by sleeper screws (5), or similar, with elastic deformation, flat onto the sleeper top surface (10) or other mounting surface. The apex of the arch pref. coincides with the plate centre line. This permits permanent force-locking fixture, together with reduction of plate size.
Patent DE-2921119-A1 (DE)
Title: Appts. for carbon black mfr. of various shades - has jet for introducing cracked gas in-side ring burner
Inventor: FIEDLER JUERGEN ING GRAD
IPC: C09C1/50
Filed: 1979-05-25
Abstract: Appts. for C black mfr. has a heatable reaction chamber with inlet(s) for oxidant (I) and inlet(s) for a hydrocarbon gas (II). There is a ring burner in the region of the wall of the reaction chamber, to which (I) and (II) are supplied. There is also a jet inside the burner, through which a cracked gas can be introduced into the reaction chamber axially and/or tangentially. C blacks of various grades can be produced in high yields. The prods. range from MT (medium thermal) to HCC (high colour channel) blacks, esp. pigment black.
Patent DE-2922973-A1 (DE)
Title: Unsatd. polyester prodn. from glycol (terephthalate oligomers) - formed as waste prods. in polyethylene terephthalate prodn.
Inventor: WARNER KENNETH NEWTON
IPC: C08G63/54
Filed: 1979-06-06
Abstract: An unsatd. polyester is produced from a compsn. (I) comprising glycols and oligomers of glycol terephthalates recovered from a waste stream from the prodn. of polyethylene-terephthalate. The process comprises: (a) mixing the compsn. (I) with an aliphatic polyol or polyetheralcohol, (b) transesterifying the mixt. and (c) polyesterifying the transesterified mixt. with an ethylenically unsatd. dicarboxylic acid. The physical properties of the polyester produced are comparable to those of commercial polyesters. The process is also of ecological and economical interest.
Patent DE-2923108-A1 (DE)
Title: Chassis for driven rolls in multitrack continuous casting plant - where upper, driven rolls are each mounted on pivot lever carrying gearbox driven by telescopic shaft
Inventor: BAYER FRANZ ING
IPC: B22D11/128
Filed: 1979-06-07
Abstract: On a baseplate are four long vertical pillars and four short vertical pillars. Each pair of short pillars is used to provide a pivot mounting for a lever fitted with two bearings carrying an upper roll. The free end of the lever is fitted to the bottom end of a piston actuated by a work cylinder contg. a pressurised fluid which is fitted between a pair of long pillars. Each pair of long pillars carries a motor and gearbox rotating a telescopic cardan shaft. The bottom end of the shaft is used to drive a worm in a gearbox fitted on the lever and thus rotating the upper roll. The two mating lower rolls are both mounted via bearings on the baseplate and can be idling or driven rolls. Provides a simple and inexpensive design which does not create torsional loads which would prevent the upper and lower rolls from being parallel.
Patent DE-2925367-A1 (DE)
Title: Chemical or electroplating appts. - for depositing metal in holes in printed circuit boards via several solns. fed successively through hole
Inventor: BALLA GERHARD
IPC: C25D7/04
Filed: 1979-06-22
Abstract: A nozzle is aligned on each side of the board so the nozzles are coaxial with a hole to be metallised; and a control appts. is connected to each nozzle. The two control units are used for the selective feeding of liqs. via pumps from storage tanks, so each liq. flows through the hole in the board and is then returned to its tank, i.e. each liq. flows in a closed circuit. One of the nozzles contains an anode, which can be connected to a d.c. supply when electroplating is required. Modern boards may contain up to 25 holes/sq.cm; and not all the holes are completely metallised when they are pressed in laminated boards. The invention is used to correct any faulty boards, i.e. where some holes are not completely metallised.
Patent DE-2929885-A1 (DE)
Inventor: MADSACK HEINZ
IPC: F02F1/34
Filed: 1979-07-24
Abstract: 1. A cylinder head for an air-cooled internal combustion engine, the cylinder head having a cylinder head bottom, which serves to terminate the combustion chamber and into which a cylindrical injection-valve body is sealingly inserted, and a cylinder head top extending substantially parallel with the cylinder head bottom and being traversed at a through-hole by the valve body, a cooling-air channel being interposed between the cylinder head bottom and the top, characterized in that the through-hole (5) is an aperture through the cylinder head top (4) permitting the valve body (1) to be swivelled from its operative position (1a) into an assembly/dismantling position (1b), in that the swivel axis is disposed in the region of the aperture, in that the valve body (1) in its operative position sealingly abuts on the through-hole (5), and in that the cooling-air channel (11) includes a free space for swivelling the valve body (1) from the operative position (1a) into the assembly/dismantling position (1b).
Patent DE-2930500-A1 (DE)
Inventor: OBERMUELLER HERMANN
IPC: A44C9/00
Filed: 1979-07-27
Abstract: A multipartite item of jewelry particularly useful as a finger ring formed of a plurality of sections which are flexibly connected to each other in order to form a closed series of curves with the sections being constructed with a circular configuration.
Patent DE-2931158-A1 (DE)
Title: Perforated document file unit - has filing mechanism baseplate with holders fixed to cover and enclosing bearing mountings
IPC: B42F13/24
Filed: 1979-08-01
Abstract: The letter file accommodates perforated documents, comprising two hinging rigid covers joined by a solid back, while a filing mechanism hinges by its baseplate on one of the covers. The mounting for the baseplate (3) of this mechanism (4,5) comprises holders (21,22) fixed to the cover (2) and enclosing the bearing mountings for the filing stirrup (5). The holders can be of spring material, extending through the holes (11) in the baseplate for the stirrup bearings and round the bearings themselves. They can each comprise a flat spring tongue, bent round to form a bearing shell.
Patent DE-2931748-A1 (DE)
Title: Slide fastener with woven-in interconnected moulded members - having grooved upper and lower edges housing weft yarns
IPC: A44B19/14
Filed: 1979-08-04
Abstract: The members of a woven slide fastener which incorporates a row of moulded plastic coupling elements joined in series by a longitudinal connecting cord, by which the member series is attached to the carrier tape, have grooves in the upper and lower edges which extend at uniform depth as far as an aperture behind the head of the member, into which the connecting cord is drawn by the encircling weft yarns. This stabilises the members and inhibits twisting without increasing the rigidity of the fastener.
Patent DE-2934088-A1 (DE)
Title: Loss reduction circuit for switched power transistor - uses capacitor to limit voltage across transistor to hold it within permissible operating range
Inventor: POPP WERNER
IPC: H03K17/0814
Filed: 1979-08-23
Abstract: The circuit includes a capacitor (8) which limits the rate of increase of the emitter-collector voltage when the power transistor (1) is switched out of circuit. A resistor (9) is connected in series with this capacitor so as to carry the capacitor charging current and the voltage drop across this resistor (9) is applied across the base-emitter path of an auxiliary transistor (13) via a second resistor (14). The emitter-collector path of the latter transistor (13) is connected in series with a third resistor (12) in parallel with the base-emitter path of the power transistor (1). Pref. the power transistor (1) is connected in series with a choke coil (2) and a load (3), having ohmic and inductive components (3a,3b), across the supply voltage (Uv). A free-wheeling diode (4) is connected in anti-parallel with the load (3) and a series reistor (5) and diode (6) are connected across the choke coil (2).
Patent DE-2936416-A1 (DE)
Title: Mandelic acid prodn. from mandelonitrile - by hydrolysis with hydrochloric acid in presence of alcohol
Inventor: KROENER MICHAEL DIPL CHEM DR
IPC: C07C51/08
Filed: 1979-09-08
Abstract: Prodn. of mandelic acid (I) is carried out by hydrolysing mandelonitrile (II) with aq. HCl in the presence of a lower alcohol, and isolating (I) and the corresp. mandelate ester as oil phase from the resulting multi-phase mixt. The alcohol is pref. a 1-8C aliphatic or araliphatic alcohol, esp. isobutanol, and is used in an amt. of 0.3-3 moles per mole of (II). Hydrolysis is pref. effected at 40-80 deg.C. Before separating the oil phase, the mixt. is pref. treated with sufficient alkali to neutralise the HCl without neutralising (I). The process gives high yields (e.g. 89.5-97.7%) without problems associated with sepn. of inorganic salts from the prod.
Patent DE-2941114-A1 (DE)
Title: Sodium vapour discharge lamp - has auxiliary conductor lying along outer surface of tube to assist in starting
Inventor: YAMAZAKI HARUO
IPC: H01J61/82
Filed: 1979-10-10
Abstract: The high pressure sodium vapour discharge lamp includes an outer envelope enclosing a discharge tube in a vacuum. The discharge tube itself comprises a clear envelope of chemically stable material enclosing sodium, xenon and a buffer gas which is one of the group including mercury and cadmium. Two electrodes are sealed into the two ends of the tube. One of the discharge electrodes (4) includes a projecting conductor (9) which extends from the electrode towards the inner surface of the side wall of the tube, with a set gap separating it from the wall. A conductor (8) intended to assist starting is placed longitudinally on the outside surface of the wall, with one end being opposite the conductor inside the wall. This conductor is connected to a voltage equal to that on the other discharge electrode. The conductor is arranged to be disconnected when the temperature of the lamp reaches a chosen level by a bimetal switch.
Patent DE-2943005-A1 (DE)
Inventor: WEICHEL ERNST
IPC: A01D43/12
Filed: 1979-10-24
Abstract: In an attachment combination for agricultural tractors used for loosening soil in a field covered with living or dead plants or crop residue, a covering hood forms an ejection channel with a motor driven flail mower positioned under the hood. A support tube is located behind the mower and it carries at least one row of loosening elements. Motor driven rotatable tools are located rearwardly of the loosening elements. The flail mower hood can discharge in a first position where the material is directed downwardly and rearwardly in front of the support tube or in a second position where the material is directed behind the loosening elements and the rotatable tools. The mower is mounted on a rearwardly open U-shaped support frame consisting of a cross beam and two laterally spaced longitudinal beams extending perpendicularly of the cross beam. A coupling piece is located on the free end of each longitudinal beam with a counterpiece clamped on the support tube. The coupling pieces can be easily detached from the counterpieces.
Patent DE-2946899-A1 (DE)
Title: Seat belt for motor vehicle - has increased width strap to reduce danger of crush injury to user by relatively narrow strap
Inventor: LEINEWEBER HANS JOACHIM DR
IPC: B60R22/14
Filed: 1979-11-21
Abstract: The modified seat belt strap is much wider than the straps currently used. This reduces the risk of injury to the user by the relatively narrow strap, which causes high local loading. A width of 60 cm is suggested and the strap may include several hooks which are able to connect the strap with the car body with the aid of elastic fixings. The strap should be wide enough to embrace the body from the thigh up to the neck. A width of 60 cm should be sufficient for this purpose.
Patent DE-2949061-A1 (DE)
Title: Steplessly-adjustable drive chain - has links with transverse ribs and grooves hooking and pivoting together
Inventor: KOERNER HELMUT
IPC: F16H9/24
Filed: 1979-12-06
Abstract: The link chain is for a steplessly-adjustable mechanical drive having two pairs of flat cone discs movable to and from each other and forming driving and driven pulleys, the ends of the links bearing against the cone faces. The links (1,2) are of basically prismatic shape, hooking and pivoting together by means of transverse ribs (3) and grooves (4) engaging together, and whose mating surfaces (6,7) have a set profile. One at least of these surfaces can be of arched profile, to give rolling contact between the links. The end faces of the links can be slightly convex curved where they bear against the disc cone faces.
Patent DE-2949220-A1 (DE)
Title: Division of liq. flow down vertical column - into precisely defined portions for internal and external discharge
Inventor: STREUBER HANS-PETER
IPC: B01D3/20
Filed: 1979-12-07
Abstract: Horizontal floor extending inwards from the side wall of a counterflow mass exchange column is affixed at its inner side to one vertical wall of a trough divided by a transverse partition into two equal halves, each with its own discharge outlet. One outlet discharge descending liq. to the column exterior, the other keeps its discharge inside the column. On the side of the trough where descending liq. enters is a horizontal slot, along which is moved an element which controls the access of liq. to the two halves and therefore the ratio between liq. retained in the column and liq. discharged externally. In a variation a second trough is combined with the first. The device is simple and provides exactly determined ratios varying from 1:1 to 1:100 or more between the two discharges. It may be made outside the column and installed in an existing column.
Patent DE-3000990-A1 (DE)
Inventor: LEMMER FRITZ
IPC: F16K47/02
Filed: 1980-01-12
Abstract: 1. A mixing valve with a noise reducing device, more specially in the form of a single lever mixing valve, comprising a control sleeve (3) seated in the valve housing (1), said sleeve (3) having a firmly locked valve seat washer (19) and at least one control washer placed over same, a noise reducing inbetween piece (5) being present in the valve housing (1) between the floor (2) of the housing and the valve seat washer (19), said piece (5) having an inlet duct (6) for hot water, an inlet duct (7) for cold water and an outlet (8) duct, characterized in there are radially springing hose inlays (9) placed in the water inlet ducts (6 and 7) and/or in the water outlet duct (8) of the noise reducing inbetween piece (5), there being an air space (13) placed round each such inlay (9) at least in places.
Patent DE-3002447-A1 (DE)
Title: Tractor track smoothing attachment - has foremost smoothing tool between links to implement
Inventor: CRAMER LUEPPO DIPL KFM
IPC: A01B37/00
Filed: 1980-01-24
Abstract: The attachment is for use with a tractor drawn implement, particularly a soil cultivator. It smooths over the tractor tracks, having V-shaped smoothing tools mounted in a staggered pattern between the tracks. The foremost of these tools (17) is mounted in the area between the links (2) securing the implement to the tractor. The tools can be mounted on a frame below that of the implement and adjustable for height in relation to it. They can comprise spring tines with smoothing vanes at the sides, the latter in the form of concave mouldboards.
Patent DE-3011187-A1 (DE)
Title: Communication system using ground station synchronising satellite - has ground station located between two peaks of aerial radiation pattern
Inventor: FRISCH EBERHARD DIPL PHYS DR R
IPC: H01Q1/52
Filed: 1980-03-22
Abstract: The satellite transmission system using a satellite to form a link between two stations spaced apart on the surface of the earth uses an aerial on the satellite with an elliptical paraboloidal reflector with a suitable number of exciters. The main axis of this reflector is positioned so as to produce a radiation pattern between the two stations consisting of a series of peaks. Each station (B) is positioned in the region of minimum radiation between two peaks. The direction of the satellite to the base station lies on the line between the flanks of the two peaks. For best performance, the station is between the second and third peaks.
Patent DE-3015710-A1 (DE)
Title: Trapping of sulphur content of burning fuels - by addn. of powdered lime or calcined dolomite
Inventor: ABELITIS ANDRIS DIPL ING
IPC: C10L9/10
Filed: 1980-04-24
Abstract: In a process for trapping of the sulphur content of fuels during their combustion, finely-divided S-absorbing substances, e.g. quicklime or calcined dolomite, are added. With coal as fuel, the additive and fuel may be ground together before burning. With oil as fuel, the additive may be mixed with the combustion air. The combusted gases do not contain SO2. The additive contg. combined S may be removed from the solids remaining after combustion e.g. by sieving. Used in the mfr. of cement, and in other processes where the fuel contains S, but where the prod. is required to be S-free, and also in combustion of S-contg. fuels, to avoid SO2 in the off-gas. The S-contg. prod. of the additive may then be left in the ash.
Patent DE-3022083-A1 (DE)
Title: Magnetic separator for parts of different sizes - has rotating wheel with grid of ridges accommodating smaller parts but excluding larger parts
Inventor: STEUER OTTO
IPC: B03C1/14
Filed: 1980-06-12
Abstract: The separator has a rotating wheel (6) with a non-magnetic outer surface (10) and a magnetic system inside it. Radial ridges (13) project from the outer surface to form a grid. The parts (3,4) being separated drop onto the top of the wheel from a chute (2) or conveyor. The smaller parts land inside the compartments in the grid. The larger parts rest across the grid and are consequently subject to a weaker magnetic attraction. As the wheel turns, the larger parts drop off first into a container whilst the smaller parts are held longer and drop off later into a second container.
Patent DE-3033253-A1 (DE)
Title: Prefab. solar heat conserving facade panel - has heat absorbent and exchanger external surface on pref. load-bearing base
Inventor: HOELTER HEINZ ING GRAD
IPC: E04B1/76
Filed: 1980-09-04
Abstract: The element is used esp. in external wall faces of houses, workshops or other buildings. It is prefabricated pref. as a load bearing element, and includes a heat absorbing and exchange surface on the outside. This surface can be coupled as required to adjacent prefabricated elements, and/or incorporated into the heating or water system. The element can serve both as load bearing heat-exchanger and as heat storage unit. Max. use can be made of heat derived from the sun at warm times of day.
Patent DE-3040934-A1 (DE)
Title: Polyethylene faced cables or pipes are marked - for identification with polyethylene strip pressed on by marking wheel
Inventor: FROESCHER PETER ING GRAD
IPC: B41F17/10
Filed: 1980-10-28
Abstract: Elongated or long materials, esp. pipes, cables, etc., which have an external polyethylene sheath, are marked for identification with a similar material. The marking material (26) is fed to the marking device (20) in the form of a strip or band. Used esp. for the identification marking of long cables, conductors and the like with a polyethylene insulation or sheath, or polyethylene pipes. By contrast with previous methods which use white polyethylene powder as the identification material, the polyethylene for sintering onto the surface of the cable or pipe is fed in the form of a strip. This method is almost entirely free of risk of incorrect or faulty marking.
Patent DE-3045197-A1 (DE)
Title: Antifreeze supply pump for compressed air pipe - has differential piston with smaller shoulder, to connect pump chamber to air pipe
Inventor: GRUENER HANS
IPC: B60T17/00
Filed: 1980-12-01
Abstract: The pump is for automatic temporary feed of antifreeze into the compressed air pipe of vehicle air brakes. It has a housing, with a differential piston, and a pump chamber, connected via an inlet valve to an antifreeze store, and connected to the pipe via a back pressure valve in the piston. The piston is charged by the pressure in the pipe, against a return spring. On the side facing the compressed air pipe, the differential piston has a shoulder of reduced dia. This connects the pump chamber, sealed by the back pressure valve, to the compressed air pipe, via an axial passage.
Patent DE-3045654-A1 (DE)
Inventor: DOSCH WERNER PROF DR
IPC: G01N30/20
Filed: 1980-12-04
Abstract: The invention relates to a connecting device for fluid circuits in column chromatography. To ensure an inert connection chromatography. To ensure an inert connection without dead volumes the device comprises a glass or fused silica thick-wall body with an inner capillary channel connected to the outside through radial holes. In such holes metal or fused silica capillaries are inserted and fixed each by means of a coupling carrying a capillary set screw and a coupling fixing screw, said screws acting on opposite positions of said body wall.
Patent DE-3046301-A1 (DE)
Title: Magnetic levitation system for high-speed train - has series of electromagnets supported by individual springs with decreasing strength characteristic
Inventor: STEINMETZ GUENTER
IPC: B61B13/08
Filed: 1980-12-09
Abstract: The train has a number of electromagnets (2) positioned one after the other in a line and supported from the chassis (1) of the train via individual springs (4). Each of these springs (4) has a degressive characteristic at least in the overload region of the electromagnet (2). Pref. each spring (4) comprises a number of sets (4.1) of dished spring plates (4.2) each made of spring steel the sets (4.1) positioned one above the other facing in opposite directions and held together by a guide bolt (4.3) passing through a hole at the centre of each plate (4.2). The levitation system is protected against failure of one of the magnets by automatic compensation.