baber/WOPTO huggingface dataset:
Patent DE-2532448-A1 (DE)
Title: Ultraviolet flame detector for oil and gas burners - DC operated switching tube conducts glow current to control detector relay via thyristor
Inventor: SORGER BERNHARD
IPC: F23N5/08
Filed: 1975-07-19
Abstract: Optical flame detector for oil and gas burners comprises a d.c. -operated switching tube (UV-R) which on exposure to UV conducts a glow current for controlling a detector relay (RE) via a thyristor (Th). The switching tube forms part of a self-exciting generator circuit of which the voltage and frequency are adjusted to max. sensitivity and output of the tube. The sawtooth voltage is transmitted to a trigger circuit of which the amplitude and frequency conform to the trigger conditions of the thyristor, independently of the generator circuit. In the quenching stages of the tube, a capacitor (C3) in the generator circuit acts on a storage capacitor (C4) in the trigger circuit which supplies the ignition voltage for a trigger diode (D5) connected to the control electrode of the thyristor.
Patent DE-2533175-A1 (DE)
Title: FET semiconductor amplifier - has source drain and gate in SC chip and includes metal strip waveguide
Inventor: DOSSE JOACHIM PROF DR ING
IPC: H03F3/193
Filed: 1975-07-24
Abstract: The strip waveguide is produced on an insulating layer on the chip at such an angle to a line between source and drain, that when a voltage is applied between source and drain, a charge wave runs from source to drain at a velocity approx equal to an electromagnetic wave propagation velocity in the strip waveguide. When the SC chip (3) consists of gallium arsenide or indium phosphate or of an SC material with similar band structure, propagation velocity of the electromagnetic wave is a little higher than that of the charge wave (9) running from source (6) to drain (7).
Patent DE-2537688-A1 (DE)
Title: Ribostamycin antibiotic prodn. - by ketalisation of neomycin with simultaneous removal of neosamine gps., followed by hydrolysis
Inventor: HAEDE WERNER DIPL CHEM DR
IPC: C07H15/23
Filed: 1975-08-23
Abstract: Antibiotic ribotamycins of formula (I) (where R is H or OH) are prepd. by a multi-stage process. The process comprises reacting a cpd. of formula (II) with cpd. (III). In the formulae, R1 is lower alkyl; R3 = H if R4 = NHZ or R3 = CH2NHZ if R4 = H; Z is a protecting gp. for the amino radicals A represents the portion of the formula (I) to the right of the dotted lines, but the NH2 gps. protected). The reaction is carried out in an acid catalyst. Neosamine residues are simultaneously split off. The prod. is of formula IV. The protecting gps. are removed by hydrogenation or hydrolysis and the ketal hydrolysed to give I (R = OH). A further process starting from cpd. (IV) to give 3', 4'-dideoxy-ribostamycin is also claimed.
Patent DE-2545957-A1 (DE)
Title: Light-sensitive phenolic resin for resist and printing plate mfr. - contains (ortho)-quinone-diazide-sulphonic ester or amide gps.
Inventor: WALLBILLICH GUENTER DIPL CHEM
IPC: G03F7/023
Filed: 1975-10-14
Abstract: Light-sensitive material for positive-working photoresists and for the prodn. of printing plates is based on a water-insol. polycondensate (I) of phenol(s) with an aldehyde and contains o-quinone-diazide-sulphonyl gps. In addn. to condensed units of phenolic cpd(s). (II), (I) also contains condensed units of phenolic cpd(s). (III) in which the OH or NH2 gps. are (partly) reacted to o-quinone-diazide-sulphonic ester or amide gps. which is strongly absorbing in the 300-400 nm wavelength range and pref. has a molar extinction coefft. epsilon >103 in that range. The material has higher sensitivity and gives faster printing plates than compsns. contg. naphthoquinone-1,2-diazide-5-sulphonic ester. It adheres well to substrates, has good film-forming properties and can be produced easily and cheaply. Pref. (I) has a mol. wt. of 1000-10000 and contains a (III) unit to every 2-15 phenolic units. In an example a light-sensitive phenolic resin was prepd. from a o-quinonediazide-sulphonic diester of 2,2',4,4'-tetrahydroxybenzophenone monoacetate, bisphenol A and HCHO.
Patent DE-2550782-A1 (DE)
Title: Rigid gastight fire screen door - has steel plates covering framed mineral panel, detachable under heat action
Inventor: BECKERS RICHARD
IPC: E06B5/16
Filed: 1975-11-12
Abstract: Fire-screening door in which the door leaf comprises a panel of mineral with a shaped metal frame, the object here being to improve its mechanical rigidity, esp. for use in industrial buildings. Both sides (13, 14) of the panel (12) are covered with steel plates (15), connected to the metal frame (11) and/or panel so as to detach themselves automatically under the effect of heat. A gas-tight connection with the inside edge (17) of the metal frame may be provided by shaped battens (16), of a material such as aluminium or thermoplastic synthetic material which melts at high temperature. Screws made of readily melting plastic may be used to fix the steel plates to the panel, which may be of asbestos silicate. this combines fire resistance, rigidity, and the ability to seal off toxic or combustible gases.
Patent DE-2553110-A1 (DE)
Title: Panels for cladding walls, ceilings or furniture - permit simple attachment of additional decorative components
Inventor: TRANKER KURT
IPC: F16B12/10
Filed: 1975-11-26
Abstract: Suitably spaced battens (2) are first fixed to the wall, ceiling, door or piece of furniture (1). The decorative panels (3) are mounted on these battens by a suitable established method that is invisible from the facia side. These panels are mutually located by spring components (4) which fit into grooves along their edgesblind holes on the reverse side in a symmetrical format, e.g. at a constant spacing from the edges. When alteration of the decorative appearance is required, these holes may be drilled right through. Embellishments with corresponding blind holes on the reverse side may then be mounted with suitable fixings, such as dowels or screws.
Patent DE-2557840-A1 (DE)
Title: Superconductive multifilamentary composite - contg. superconductive alloyed vanadium or niobium wires in copper matrix
Inventor: WINTER HEINRICH DR
IPC: H01L39/24
Filed: 1975-12-22
Abstract: Ductile superconductors contg. a number of thin wires made from a superconductive alloy based on V or Nb, embedded in a copper matrix ('multifilamentary composite') are improved in that the V- or Nb-base alloy contains 2-15 wt % of Al, Si, Ge, Ga or Sn. After the melting the alloy is rapidly cooled from 1500-2000 degrees C to a temp. below 500 degrees C and then subjected to a thermal treatment at 600-1000 degrees C. Superconductors can be used for magnet coils. The critical temp. is increased (>20 degrees K) and the critical magnetic field strength is also increased. The thermal treatment results in the formation of superconductive A3B phases (e.g. Nb3Sn) very finely distributed in the Nb (or V) matrix.
Patent DE-2558832-A1 (DE)
Title: Cooling hot leavering a rolling mill - using coolant sprays arranged in a helix round the moving bar
Inventor: ECONOMOPOULOS MARIO
IPC: C21D1/62
Filed: 1975-12-27
Abstract: In a process for cooling a round bar leaving the last stand on a rolling mill, where the bar is cooled by passing through a row of coolant-distributors with appropriate length and spacing, projecting liq. coolant onto the bar, the cooling being carried out e.g. using a conventional procedure so the bar has a surface zone of martensite and/or tempered bainite with a core of ferrite and carbide, the bar is sprayed on its entire periphery when passing through at least one distributor by jets directed towards the bar, the jets forming a helix in spirals which are not connected to each other. The helix is pref. formed by a tube wound into a coil and provided with holes directed towards the axis of the coil, the tube being supplied with the coolant. Method is useful e.g. to obtain steel rods with an optimum combination of high elastic limit, good weldability, high fatigue-resistance and high ductility.
Patent DE-2559316-A1 (DE)
Title: Plate itemiser from stack - has plate removed from pile to transfer point by series of driving arms
Inventor: OTT HALMUT
IPC: B65H3/24
Filed: 1975-12-31
Abstract: The plate itemiser draws the topmost plate from a stack to a transfer point parallel to the surface on which the stack is standing. The topmost sheet (38) is gripped in the centre of the rear edge (42) and pushed in the removing direction. After travelling a pre-set distance (b), the sheet is freed at the rear and then re-gripped at two points to the side of the rear point. The plate is then once more pushed in the removing direction to the transfer point. The stack is raised after each withdrawal by an amount equal the thickness of the plate or group withdrawn. A third driver (28) runs onto the topmost plate and lifts it off after the first pushing movement (b). The two other drivers (24,28) then lower onto the plate below (34).
Patent DE-2559624-A1 (DE)
Title: Asymmetric diesters with digitalis-exchangeable gp. - useful for making tracers, antibodies etc. for digitalis assay
Inventor: BATZ HANS-GEORG DR RER NAT
IPC: C07D207/46
Filed: 1975-08-20
Abstract: Novel diesters are of formula (I) R2R3-C(OR;)-(CH2)n.COX (I)(R1 = 1-3C alkyl, r2 and R3 are each 1-3C alkoxy or together are oxo. X = cyanomethoxy; such succinimid-N-oxy; N-methylpyridiniumoxy; 2,4-dinitro-, 2,4,5-trichloro- or pentachlorophenoxy; phenylthio; p-nitrophenoxy; p-nitrophenylthio; piperidyl-N-oxy; phthalimid-N-oxy, or benzotriazol-N-oxy. n = 2,3,4 or 5). They are prepd. by reacting the alkali metal salt of a mono-orthotrialkyl ester of a dicarboxylic acid with an X-providing cpd. in the presence of a crown ether or cryptate. (I) react with cardiac (digitalis) glycosides (II) without any change in the molecular structure of (II), by RM exchange giving cpds. useful in (II) assay. The hydrophilicity of (I) can be controlled to suit specific applications by choice of X. (I) can be attached to supports to give affinity chromatography material useful for purifying antibodies. (I) are prepd. under milder conditions and in better yields than in conventional processes.
Patent DE-2601409-A1 (DE)
Title: Circuit system ultraviolet radiator - has switches coupled to current operated relay as well as ultraviolet radiators
Inventor: PIRKL JOSEF
IPC: A61N5/06
Filed: 1976-01-15
Abstract: The circuit is for use in a radiative device which has a series of ultra violet radiators and/or high pressure gas type discharge lamps of various types, which are constructed with striker electrodes and current limiting turn on devices, has at least two watches (14,16) to which one or more ultra violet radiator devices (22-26) are connected. The watches (14,16) have an attached current operated relay (40) or similar device which operates to apply voltage when the switches (14,16) are activated.
Patent DE-2603634-A1 (DE)
Title: Signal converter for DC and AC signals - has control circuit and at least one secondary circuit separated by optical coupler
Inventor: EHRICKE CLAUS DIPL ING
IPC: H04L25/22
Filed: 1976-01-30
Abstract: The signal converter for d.c. and a.c. signals includes a control circuit and at least one secondary circuit separated by an optical coupler. A dynamically active signal evaluating circuit is provided in the control circuit, connected to the two signal wires. It contains a light emitting diode in the optical coupler, and the secondary circuit contains a phototransistor operating as a switch. It is connected to a supply current corresponding to the required signal type, and to a load resistor. The circuit can be extended by a fourth resistor (R4) in series with the control circuits and a diode (D1) in parallel with the 1.e.d. (LD). A npn transistor (T1) is coupled to the phototransistor (FT1).
Patent DE-2609566-A1 (DE)
Title: Methyl-heptenone prodn. - by reacting prenyl chloride with acetone or mesityl oxide, with hydrolytic cleavage of heavy by-prods. to increase yield
Inventor: SIMONE ROBERT DE
IPC: C07C45/28
Filed: 1976-03-08
Abstract: The process for preparing methyl heptenone (I) by reacting acetone and/or mesityl oxide at -20 degrees to 150 degrees C with prenyl chloride (II) at ketone; (II) mole ratio 1:5-20:1, in presence of solid NaOH and/or KOH (1-2 moles per mole (II)) and, as catalyst (III), NH3 or 1-60C (cyclo)aliphatic or heterocyclic amines all opt. substd. by OH, COOH or NO2 nu.003-1 mole per mole (II)), is improved when (I) is separated from the reaction mixt. contg. prenyl-substd. methyl pentenones (IV), then (IV) subjected, pref. without further purificn., to hydrolytic cracking with water in presence of alkali (ne earth) hydroxides at 50-350 degrees C to produce additional (I). (I) is useful as a perfume and perfume base. Improvement in yield by cracking the high boiling residue makes the process commercially attractive.
Patent DE-2611060-A1 (DE)
Title: Metering pipette with exchangeable ends - having piston which protrudes into pipette to reduce dead space
Inventor: FAURE JEAN MARIE
IPC: B01L99/00
Filed: 1976-03-16
Abstract: Metering pipette which can such up and deliver a constant preuse volume of liquid and which can be immediately reused for a second different liquid has an exchangeable element which is made without relatively close or precise tolerances. Into this the liquid is drawn by means of a piston device and subsequently expelled. The liquid does not touch this piston to contaminate it yet only a negligible dead space remains between the piston and the exchangeable element. The piston is tubular in form and extends down into the pipette element. In order to reduce the dead space, the element is virtually filled by the piston, the top end of which however runs in a separate cylinder. For the accurate repetitive measurement and dosing of small quantities of liquid esp. where several different liquids are being handled. The design combines the advantages of the two main types of replaceable automatic pipettes already known.
Patent DE-2611611-A1 (DE)
Title: Automatically controlled work transport monorail - has carriage and station control elements vertically adjustable in stages
Inventor: HOFNER FRIEDRICH
IPC: B61C13/04
Filed: 1976-03-19
Abstract: The monorail has stations and brach-lines for the transportation of work pieces, which are conveyed by carriages using electromotive drive. The current supply is via the rails, and the carriages have a control unit, acting with a control element at each station and branch. The control unit on the carriage is vertically adjustable in stages. The control elements on the stations may be fixed at the same stages. Each station has a displacement unit, which after dispatch of the carriage, adjusts the control unit to the stage, which is associated with the next station. The uppermost stage is for the empty trip of the carriages.
Patent DE-2612149-A1 (DE)
Title: High explosive fragmentation shell head - has separate balls around inner core held in place by envelope of sintered material
Inventor: BEDALL HANS DIPL ING
IPC: F42B12/32
Filed: 1976-03-23
Abstract: The shell or projectile has an inner core machined from a solid billet of metal. An inner cavity (7) is provided for the charge of high explosive and the outer profile is machined to give a portion between both ends (2,3) which is of reduced diameter (1). This reduced portion is packed with a large number of hardened steel balls (5), distributed along the length and around the diameter. Over these is laid an envelope (6) of sintered material, holding the balls in place and machined to give the final shell profile. A ring (8) fits over this to guide the shell.
Patent DE-2617117-A1 (DE)
Title: Mounting bracket for overhead installation of clamp ring - has vertically adjustable screw rod connecting clamp ring to mounting block
Inventor: ROEMPLER DIETER
IPC: F16L3/133
Filed: 1976-04-17
Abstract: A mounting bracket is used for the overhead installation of pipes or cable looms. It includes a rectangular frame (1-3) which is attached to the ceiling (4) by a screw (5). There is a clamp ring (17) which is used to locate the pipe (16). It is attached to the support bracket by means of a vertical screw rod (10). An anchor nut (24) is located at the lower side of the mounting bracket (7). The nut is free to rotate but is not able to move axially. Thus it forms a vertically adjustable location for the screw rod (10).
Patent DE-2617267-A1 (DE)
Title: Typewriter ribbon spool with ribbon carrying case - has side sections with pin shaped projections fitted with bores for driver
Inventor: WILCKE GERHARD
IPC: B41J33/00
Filed: 1976-04-15
Abstract: Ribbonn spool for typewriters includes a case to carry the ribbon, which is detachably connected to plate-shaped side sections of the spool and is capable of being rotated with it. The side sections (11) are fitted with pin-shaped projections (12) which incorporate locking grooves (15) into which fit the ends of sliding rockers (16) acting as coupling elements from inside the case (18). Both side sections are of the same shape and the case has three sliding rockers (16) positioned at equal distance from each other. The pin-shaped projections are fitted with bores to take a driver element.
Patent DE-2618887-A1 (DE)
Title: Concrete slab casting plant - has two hoppers raised and lowered by cylinders above roller conveyor and reciprocating filling devices
Inventor: BERGERHOF WALTER DIPL ING DR
IPC: B28B15/00
Filed: 1976-04-29
Abstract: The concrete casting plant can be adapted for manufacture of kerbstones, slabs cast on edge, or horontally. Two concrete hoppers (20, 21) mounted inside a moving frame (1) supported between side frames (2) so that it can be raised and lowered by vertical power cylinders. They discharge into filling boxes (24, 25) moved longitudinally above the pallets which travel on rollers (7) between the side frames. Each carriage can be raised under the mould filling position by an extending lazy tongs lingage, and can carry a vibratory compacting device. The filling boxes (24, 25) are moved by power operated mechanisms (26) supported at their bases. The lifting cylinders are positioned inside the fixed side frames. A pallet magazine (17) is located at one end of the roller conveyor.
Patent DE-2622206-A1 (DE)
Title: Glass fibre reinforced material mfr. - uses bonding adhesive to secure parallel fibre strands to nonwoven carrier
Inventor: HEUSEL WILHELM
IPC: D04H5/04
Filed: 1976-05-19
Abstract: In the mfr. of a reinforced material, parallel strands of glass fibre are bonded to a non-woven felting of unorientated staple fibres, using an adhesive bonding agent to hold the layers together. The parallel fibre strands are laid longitudinally, horizontally or at an angle of about 45 degrees on the carrier fabric. Two layers of glass fibre strands can also be used, with the strands in one layer being at about 90 degrees to the strands in the other layer, and the layer(s) are clad on both sides by a matting of glass fibre staple. The application of the adhesive bonding aent is by passing through a bath of the bonding agent. The carrier fabric is developed in strip or belting form with the layer of parallel glass fibre strands being applied and moved with the carrier strip.
Patent DE-2626076-A1 (DE)
Title: Dowel with expander and slotted sleeve - with epoxy resin coating on expander and sleeve at contact points
Inventor: OECHSLE HANS ING
IPC: F16B1/00
Filed: 1976-06-10
Abstract: Dowel comprises an expander and a sleeve which is slotted over part of its length and of which the bore is tapered towards the front end in the slotted region. The expander and/or the inner wall of the sleeve bears an epoxy resin-based coating at least at their points of contact. Pref. the expander is coated on all sides with the epoxy resin, and the bore of the sleeve is coated with the epoxy resin in its slotted zone. The coating has high adhesion and good slip properties, preventing repulsion of the coating on insertion of the expander or displacement due to pressures which arise, and allowing easy insertion and counteracting cold welding.
Patent DE-2631855-A1 (DE)
Title: Coalface infusion probe metering valve - has slide and choke with bore to link pump to slide and radial bores to probe
Inventor: HEBBEN ROLF
IPC: E21F5/18
Filed: 1976-07-15
Abstract: Water metering valve for coalface infusion practice involving several probes with supply pump and interposed metering valves for each probe. A valve slide (10) urged by spring towards the pump has an axial bore (11) with throttle (13, 14) which leads from the pump connection (5) to the sprung side of the slide (21). Bores radiating (15, 16) from this are either closed by the valve (2) or connected to the probe connection (7) depending on the slide (10) position. The slide (10) and housing (2) are refined steel surface hardened so that the slide surface is softer than that of the housing. The housing tolerance is smaller, possibly zero as compared with that of the slide which has a seal (24) between pump and probe connection points (5, 7).
Patent DE-2638699-A1 (DE)
Title: Anti-icing gas jets for car - have fan-tail shaped exhaust gas nozzles directed onto road in front of driving wheels
Inventor: LAUBMANN DIETER
IPC: B60K13/04
Filed: 1976-08-27
Abstract: The exhaust system of the car is branched after the silencer box to diver the gases to spreader jets (8) in front of the driving wheels. This prevents the wheels from loosing grip on ice by either warming the road or the tyres. The system enables the vehicle to drive without spiked tyres and without snow chains. The spreader jets have a fantail profile to cover the width of the tyre. If fitted to many vehicles the cumulative effect is to reduce icing of road surfaces, and to dry roads rapidly aftr rain.
Patent DE-2649084-A1 (DE)
Title: Mass-produced orthopaedic shoe with splints - has pre-moulded heel block with recess for fitting in individual splints
Inventor: LUTZ KURT
IPC: A43B21/24
Filed: 1976-10-28
Abstract: The orthopaedic shoe is provided with a premoulded heel block (10) which can be attached to the shoe sole which has been reinforced by a joint reinforcement element and on the side facing the shoe sole the heel block has a recess (12) which can take a splint (11). In this way the orthopaedic shoes can be economically mass produced and then subsequently fitted with each person's individual splint. The recess (12) in the heel block is pref. in the form of a groove extending across the middle longitudinal axis of the block wherein the width and depth are such that they correspond at least to the width and thickness of standard splints. The recess can be closed in the area adjoining the two side faces of the block by a comparatively thin side wall (13) which lies flush with the side wall and extends up to the upper edge of the block.
Patent DE-2649440-A1 (DE)
Title: Press. roller for sound cine camera - has double action linkage to take up slack and provide constant press. even as spring weakens with age
Inventor: REICHEN WILLI
IPC: G03B31/00
Filed: 1976-10-29
Abstract: The sound-cine camera has a press. roller (4) which holds the film and sound track onto a sound roller during filming, and away from the sound roller while the film is being threaded. The drive mechanism to hold the rollers together has a two part cam, to move the rollers together rapidly and maintain a constant press. The first part of the cam (40) allows the press. roller bracket (32) to swing a set distance for a set amount of travel of the operating lever (30). The second part of the cam (38) is then engaged by a spring (35) so that a constant press. is maintained, even over a long period. As the spring weakens with age, the end of the spring moves further up the cam.