baber/WOPTO huggingface dataset:
Patent DE-2704002-A1 (DE)
Title: Probe for connection at test points of plug-in units - has amplifier with high input resistance, connected by coaxial cable to evaluation device
Inventor: MILLER GERHARD
IPC: G01R1/067
Filed: 1977-02-01
Abstract: An input (3) connectable through a short flexible cable to a test point, is connected to an amplifier (7) with a very high input resistance. It operates linearly between an upper and a lower level limits of logic signals. The amplifiers output resistance is low, matching a coaxial cable (9) by which the amplifier is connected to the input (12) of an evaluation device (13). The amplifier (7) output voltage between the two limits of tested signals is adjusted to the evaluation device (13) maximum permissible input voltage range.
Patent DE-2705568-A1 (DE)
Title: Application of solder, e.g. to glass, ceramics or plastics substrate - by atomising or vapour deposition, giving thin, uniform, reproducible layer
Inventor: WECHSUNG REINER DR
IPC: C04B37/02
Filed: 1977-02-10
Abstract: Application of a solderable layer to a substrate is carried out by atomising, vapour deposition etc. A layer of solderable metal and/or a layer of adhesion promoter, esp. on insulators, can be applied before the solder layer. Alternatively solder component(s) are applied and then tin plating carried out conventionally before the actual soldering process. The process is suitable for applying solder to glass, ceramics, plastics etc., e.g. for tube sockets in vacuum technology, which are to be sealed with metals. No flux or other pretreatment is necessary. The layer of solder can be made very thin, uniform and reporducible and the soldered spots can be kept very small.
Patent DE-2706341-A1 (DE)
Title: Automatically controlled underfloor heating system - has four way valve at boiler connected to three way valve inside control unit
Inventor: RODDE JOACHIM
IPC: F24D3/12
Filed: 1977-02-11
Abstract: An underfloor heating system with heating coils supplied with hot water from a boiler in the basement of the building, has a four way premixing valve connected to the boiler discharge line and return line. This is connected by a line to a three way mixing valve inside a control unit. The first valve also has a manual control. The second valve has a stepping motor operated by a section of the control system, this also being connected to an external temp. sensor. The whole system controls the boiler water temp. to suit the temp. outside the building.
Patent DE-2717852-A1 (DE)
Title: Printing machine doctor blade shaping tool - chamfers edge of strip which is pushed towards motor driven trimming tool
Inventor: BOWYER LESLIE ARTHUR
IPC: B24B9/00
Filed: 1977-04-22
Abstract: The blades used in stacks in the print industry to remove surplus ink from rollers, can be made from plastics or metal. The chamfering of the strip material is carried out in a special tool which consists of an upper part (11) and a lower part (12). The two parts have cut-outs which are complementary to one another and form a slot (13) in which the strip to be trimmed fits. The strip is pushed by a spring and plunger (25, 26) arrangement against one side of the slot. A trimming tool with drive motor (18) is mounted at an angle in the upper part of the housing. The strip to be chamfered is fed past the trimming tool.
Patent DE-2729000-A1 (DE)
Title: Continuous casting mould for large steel slabs - contains internally cooled plates to increase thickness of solidified skin
Inventor: KIRSTENPFAD FRITZ DIPL ING
IPC: B22D11/041
Filed: 1977-06-28
Abstract: Inside the mould cavity are internally cooled plates, located at a distance from the mould wall corresp. with the precalculated thickness of the skin of solidified metal formed at the bottom outlet of the mould. The plates are coated at the bottom outlet of the mould. The plates are coated with a layer of refractory thermal insulation except on their surface facing the mould wall. For slabs over 1000 mm. wide, the plates are pref. used at least along the wide mould walls. Refractory layer is pref. thicker near the surface of the molten steel in the mould than at the bottom of the plates; and is esp. plasma-sprayed alumina. Plates are pref. located on a head providing horizontal adjustment. Used in casting large steel slabs, e.g. with cross-section 2000 x 200 mm., where plates provide an increase in skin thickness so faster slab casting speeds can be used. Clad slabs can also be cast.
Patent DE-2734549-A1 (DE)
Title: Current time control for heater resistor - forms modulated control pulses by superposition of PWM signal on two-point control state signal
Inventor: BOECKELER DIETER ING GRAD
IPC: G05D23/22
Filed: 1977-07-30
Abstract: The heat dissipated in a heating resistor is controlled by varying the a.c. current using a power control element switched in accordance with the full wave timing principle. The control element consists of two antiparallel thyristors switched on by synchronised control pulses from a pulse-width modulated pulse generator at the instants of polarity changes of the a.c. current. A pulse modulator is used which widens the width of a rectangular signal when the heater resistor temperature rises and lengthens the on - period of the power control element. Suitably modulated control pulses for the power control element with a switching sequence determined by the two point control, are generated by superposition of the PWM signal on a signal representing control state of the two-point control.
Patent DE-2737447-A1 (DE)
Title: Flexible coupling for rotary shafts - has pressure diaphragm of U-shaped section reinforced with non extending interlaced cable
Inventor: KROENERT CURT
IPC: F16D3/74
Filed: 1977-08-19
Abstract: The flexible coupling is fitted between rotary shafts to absorb shock and vibration, plus a certain degree of misalignment. It comprises an outer annular flange (2a) joined to an inner sleeve or bush (1a) by means of a flexible pressure diaphragm (6). This diaphragm has a U-shaped cross section, the ends being vulcanised to flange (2) and sleeve (1) respectively. It is reinforced by means of a non-extending cable (5) which is interlaced between inner and outer circles of holes. The cable forms both radial and circumferential components, the whole being later vulcanised into the surface of the diaphragm to give an integrated unit.
Patent DE-2741790-A1 (DE)
Title: Thread cutting unit carriers - support cutting jaws and can be inserted in hole with jaws lying in area smaller than thread hole diameter
Inventor: SCHERER ERICH
IPC: B23G5/14
Filed: 1977-09-16
Abstract: The inner thread cutting installation comprises two or more compact cutting jaws which make up a drill body, which has two or more carriers (1) each with a cutting jaw. The carriers are so dimensioned that they can be pushed against each other so that the cutting jaws (3) lie within a periphery which is smaller than the inner dia. of the thread hole. When the carriers (1) have been inserted through the thread hole, they can be adjusted into a work position. Means are also provided for cutting right and left-hand threads, and a connecting milled-in cavity (5) for drilling swarf is a part of the installation.
Patent DE-2745462-A1 (DE)
Title: (4)-Phenoxy-phenoxy-alkanoic acid and ester derivs. - used as plant growth regulators esp. herbicides
Inventor: FOERSTER HEINZ DR
Filed: 1977-10-08
Abstract: Phenoxy-alkanoic acid derivs. of formula (I) are new: (R is H or alkyl; R1 is (i) alkoxy substd. by one or more OH, halogen, alkoxy, alkoxy-alkoxy, alkylthio, NH2, alkylamino, dialkylamino or carbonyl-N-alkyl-N-aryl (sic) gps.; (ii) hydroxy-alkenoxy, hydroxy-alkynoxy or NHOH; (iii) N-contg. heterocyclyl in which the ring is opt. interrupted by another heteroatom and/or substd. by alkyl or halogen; or (iv) arylamino or N-alkyl-N-arylamino in which the aryl gp. is opt. substd. by alkyl, NO2, halogen or haloalkyl; R2 is H, halogen or alkyl; n is 1-4). (I) are plant growth regulators useful as defoliants, desiccants, germination inhibitors and esp. herbicides (total or selective depending on application rate). (I) are esp. suitable for eradicating graminaceous weeds before the emergence of culture plants, and have good compatibility with cereals, maize and beets. They can also be used as weed-killers in forests, orchards, vineyards, etc. Application rate is generally 0.1-10 (pref. 0.2-5) kg/ha.
Patent DE-2746616-A1 (DE)
Title: Strong absorbent nonwoven fabric - has thermoplastic polymer microfibrous matrix contg. entangled wood pulp fibres
IPC: D04B1/14
Filed: 1977-10-15
Abstract: A non woven fabric-like material has a unique combination of strength, absorbency and hand. The material has an air-formed matrix of thermoplastic polymeric microfibers dia 10 microns and a multiplicity of individualized wood pulp fibers disposed throughout the matrix of microfibers and engaging some of the microfibers to space the microfibers apart from each other. The wood pulp fibers are interconnected by and help captive within said matrix of microfibers by mechanical entanglement of the microfibers with the wood pulp fibers. The mechanical entanglement and interconnection of the microfibers alone from a coherent integrated fibrous structure.
Patent DE-2749019-A1 (DE)
Title: Double planetary gear drive with bevel gears - has planetary bevel gears engaged simultaneously with two sun bevel gears
Inventor: MERKLE PAUL
IPC: G06G3/02
Filed: 1977-11-02
Abstract: The double planetary gear drive has common planetary gear carrier and bevel gears. This gear system forms an additional drie with double differential arrangement. Each planetary bevel gear is engaged with two sun bevel gears of equal size. Shafts of bevel gears (a, d) are centered within each other by direct radial bearing system with shaft (k) and socket (l). This planetary gear produces a range of transmission ratios depending on which part is held stationary.
Patent DE-2801792-A1 (DE)
Title: Polybutylene glycol carboxylic acid di:ester(s) - made by polymerisation of purified THF in the presence of carboxylic acid (anhydride) and catalyst
Inventor: MUELLER HERBERT DIPL CHEM DR
IPC: C08G65/26
Filed: 1978-01-17
Abstract: Polybutyleneglycol carboxylic acid diesters R-CO-O-(-CH2CH2CH2CH2-O-)n-CO-R' (I) (in which R and R1 are alkyl, COOH-contg. opt. unsaturated aliphatic gp. or COOH-contg. aromatic gp. and n is a 2-200) are made by first treating tetrahydrofuran with strong mineral acids, organic sulphonic acids, silica gel and/or fuller's earth. The treated THF is then polymerised in the presence of >=1 carboxylic acid or carboxylic acid anhydride and a polymerisation catalyst to form the (I). The pretreatment of the THF removes traces of impurities present in technical THF and gives higher rates of polymerisation, reproducible molecular weights and avoidance of discoloured prods. The (I) can be transesterified e.g. with methanol to give the corresponding dihydroxy cpds., which are useful raw materials for the prodn. of polyurethanes.
Patent DE-2801952-A1 (DE)
Title: Axial force compensator for axial piston machine - has connector lock or modified drive shaft for force compensation
Inventor: STICH WILHELM BODO DR ING
IPC: F04B1/20
Filed: 1978-01-18
Abstract: The axial force compensator is used in the drives of axial piston machines. This arrangement incorporates axial piston machines driven by inclined discs and swash plates with and without enclosed housing. A radial cylindrical control system (3, 4) causes equal forces shifted by one hundred and eighty degrees on the cylinder drum (4) and the piston support (2). These are then compensated by means of a connector (7) between the two elements in the form of a tension lock or in the form of modified drive shaft. The arrangement has a high strength connection between the cylinder drum (3) and piston support (2) and they provide an axial bearing of these components.
Patent DE-2816546-A1 (DE)
Title: Reciprocating and rotating movement generator for grinder - utilises hose and roller arrangement for moving machine tool for milling or grinding
Inventor: JANSEN HORST
IPC: F15B15/08
Filed: 1978-04-17
Abstract: The movement between two relatively movable object is generated for use in machine tools e.g. for grinding, milling or turning. Straight line and rotational movements are generated with low energy consumption. The first components is a flexible hose (1) which can be flattened. End of this hose is closed and the second component consists of rollers(13, 14) enclosing the hose. A guide profile in the form of baseplate is connected at one end of this movement generator. The roller stand is moved while pressurised fluid is applied at one end of the hose and allowed to escape at the other end.
Patent DE-2820909-A1 (DE)
Inventor: SAISCHEK GERALD DIPL ING
IPC: C08K5/55
Filed: 1978-05-12
Abstract: Novel spirocyclic boron compounds of the formula   <IMAGE>   in which R1 and R2 are various halogen containing organic :radicals and Z+ is a hydrogen ion, an equivalent of an alkaline-earth metal ion, a guanidinium ion or alkylammonium ion as flame retarding agents in various plastics, such as polyurethanes, epoxide resins and polyesters.
Patent DE-2821105-A1 (DE)
Title: Exchangeable capillary cassette - with sealed capillary end fittings in suspension device
Inventor: KUCK MICHAEL DR
IPC: G01N30/60
Filed: 1978-05-13
Abstract: An exchangeable cassette for glass or metal capillaries of a gas chromatograph contains the capillary in a suspension device with connections to the injector and detector. The capillary runs at each end in a tube with a seal at the inner end and a seal at the outer end in the optimum posn. for injector-detector. Arrangement facilities the exchange of the capillary columns on a gas chromatograph. Unskilled personnel can now be employed for this operation when different analytical jobs are required.
Patent DE-2831877-A1 (DE)
Title: Piston pump with cylinder housing fixed on combustion engine - has spring loaded piston moved by pressure generated in combustion chamber
Inventor: BREIER HORST
IPC: F04B53/14
Filed: 1978-07-20
Abstract: The piston pump comprises a housing (12) and a spring-loaded (7) piston (3) in a cylindrical housing bore (5). The housing is arranged on a combustion engine such that the piston is driven by the combustion pressure in the combustion chamber (18). The housing may be arranged in the cylinder head (13) of the engine. A piston (2) may separate the piston (3) from direct contact with combustion gas. The piston (2) may have a larger diameter than piston (3). The space (4) between the pistons (2, 3) may be filled with hydraulic fluid. This fluid may be the same as that handled by the pump, the space (4) being connected to the pump inlet (8) via a non-return valve (10, 11).
Patent DE-2832335-A1 (DE)
Title: Stethoscope for easier LF auscultation - has additional adjustable wt. holder on breast piece
Inventor: QUANTE FRANZ DIPL ING
IPC: H04R1/22
Filed: 1978-07-22
Abstract: The stethoscope gives easier auscultation of l.f. resonance components. It has a holder for an additional weight on the breast-piece. Different weights can be accommodated, being held in place by permanent or electromagnets, clips or screws. Weighting can alternatively be achieved by fitting breast-pieces of differing weights. The design allows l.f. heart sounds to be heard more easily.
Patent DE-2833783-A1 (DE)
Title: Divided folding keel for sailing boat - gives servo driven splayed setting to sit boat upright on mud
Inventor: ZUEHLKE ERNST-W ING GRAD
IPC: B63B3/38
Filed: 1978-08-02
Abstract: A modified folding keel is used on large sailing craft. The keel is formed by two halves dividing the keel by a central vertical plane, into mirror images. Each half is pivoted from an angled head and is linked to a separate hydraulic servo to move it outwards. The keel can be trimmed to suit the sailing conditions without any retraction gear and large retraction well. In the raised, splayed setting the double keel so formed acts as a stable support for a mud berth and holding the boat upright.
Patent DE-2836731-A1 (DE)
Title: Electric resistance soldering of components with large surfaces - via two pairs of electrodes connected via power diodes to split sec. winding of transformer
Inventor: THORWARTH RUEDIGER
IPC: B23K1/00
Filed: 1978-08-22
Abstract: Components are made from sheet or foil, and are joined together by soft- or hard- soldering. Process uses four independently spring-loaded electrodes. The four electrodes are arranged at the corners of a rectangle to form two pairs of electrodes diagonally opposite to each other. Each pair is connected via a power diode to one of two halves of the sec. winding of a transformer so only the positive or negative halve wave currents flow alternately over the two diagonal paths. More than four electrodes may be used, in which case an external controller is employed to direct the current along the desired paths. Process can be used on automatic machines, and provides short soldering times.
Patent DE-2841698-A1 (DE)
Title: Fault indicator for control circuit of laser - has display circuit and display triggering circuit between power supply and CW controller
Inventor: TIMMERMANN CHRISTIAN DR ING
IPC: H01S5/068
Filed: 1978-09-25
Abstract: The fault indicator has a display (17) and display triggering circuit (24) connected between the CW controller (8) and the power supply. The display circuit (17) contains a common-emitter transistor (18) with an indicator lamp (19) in its collector circuit and connected by its base via a resistor (21) to the output of the controller. The display triggering circuit contains a transistor (26) whose collector is connected to the control voltage, whose base is connected to the power supply of the laser and whose emitter contains a variable reference voltage source (27).
Patent DE-2850323-A1 (DE)
Title: Flexible resistance heating mat - has heating conductor enclosed between thermoplastics sheets thermally welded together
Inventor: ALTMANN DIETER
IPC: H05B3/36
Filed: 1978-11-20
Abstract: The heating mat, for surface heating, has a heating conductor enclosed between two identical halves of a woven sheet which is of thermoplastics or of thermoplastics encased material. The heating conductor is provisionally held in a required configuration by gluing it at discrete points, or via pins, on one half of the sheet, before folding the other half over it. When the two halves have been folded together the heating conductor is permanently fixed in place, by thermally welding the two halve together. The heating conductor may be surrounded by a thermoplastics foam layer.
Patent DE-2850587-A1 (DE)
Title: Four point anchorage seat belt - has two stepwise retractable shoulder straps channelled in seat or back rest
Inventor: SZCYGIOL WOLFGANG
IPC: B60R22/357
Filed: 1978-11-22
Abstract: The four point anchorage-seat belt consists of two shoulder straps, abdominal strap, two sliding- and restraining elements, a two-step retractor with locking device and a plug-in device, further a device to vary the distance between the shoulder straps consisting of a sliding assembly and an adjusting device. The seat belt assembly also contains two eyelets and two guide elements for the shoulder straps and a guide eyelet for the abdominal strap. The retractor is fitted on the rear part of the seat and accommodates three straps. Two shoulder straps are led through two eyelets in the seat and in the back rest out of the seat and into the back rest, where they are fitted vertically side by side. The third strap is diverted towards the middle of the vehicle and led horizontally through the seat.
Patent DE-2853687-A1 (DE)
Title: Stressed concrete building cross stress members holding system - involves support bar insertion in horizontal holes through uprights
Inventor: MOOSMANN MANFRED
IPC: E04C5/18
Filed: 1978-12-13
Abstract: The device is for retaining transverse stress members, in prestressed concrete construction, with adjustment for height. Use is made of two or more uprights (10), with a horizontal hole (12) passing through each. A bar (14) is insertable in the holes, as mounting for the transverse stress members. Uprights can be in the form of flat iron pieces with supports protruding on both sides across the line of the inserted bar. This system enables transverse stressing members to be quickly and easily assembled on site, at exactly the correct level.
Patent DE-2902449-A1 (DE)
Title: Vehicle systems reed relay - has directly mounted external energising coil and has end cap mountings for spring mounting and relay contact
Inventor: DOLDERER ERICH ALOIS
IPC: H01H9/10
Filed: 1979-01-23
Abstract: Reed relay unit has two contacts sealed in a glass tube which carries the energising coil directly on the outside. The contacts (3) are connected to cylindrical or conical (1) end caps at one or both ends. The energising coil (5) is wound directly onto the glass tube (2) and may be set in a setting resin (11). One end of the coil (5) may be connected to an end cap (1) or have completely separate contacts. The reed relay unit may be held between sprung contact units (7, 10) bearing on and around the end caps (1) and is suitable for use in vehicles.
Patent DE-2905782-A1 (DE)
Title: HV transistor stage OFF overvoltage limiter - has parallel oscillation circuit, comprising inductance and capacitor, coupled to pulse circuit via diode or thyristor
Inventor: RONA WOLFGANG DIPL ING
IPC: H03K17/0416
Filed: 1979-02-15
Abstract: The limiter circuit provides a loss-free operation of high voltage switching transistor stages with very high clock pulse frequency, e.g. in excess of 20 kHz. It is formed by a parallel oscillation circuit, consisting of an inductance and a capacitor, coupled to the pulse circuit by one or several diodes, or a thyristor. Preferably the inductance and capacitor are in a direct parallel connection free from the operational direct voltage. To these parallel-connected elements may be added a direct current source, in which case the capacitor would be under operational direct voltage. Instead of a high voltage switching transistor stage a different electronic switch may be used. Such switching stages are applicable to motor controls. The limiter circuit provides control of over-voltage surges occurring during switching off, without any of other additional components.
Patent DE-2908289-A1 (DE)
Title: Two=stage filter element - with inner and outer hose of hot sealed fibre mat material
Inventor: HOESCHELE EUGEN
IPC: B01D29/11
Filed: 1979-03-03
Abstract: A filter element for filtration plant, esp. in mechanical milking installations, consists of two hoses for a two-stage filtering process. Both the inner hose which encloses a support structure, and the outer hose are made of the same fibre material which can be hot sealed. Hot sealed seams form a longitudinal seam and a cross seam at the end opposite to the open end on both hoses. This provides an inexpensive yet highly efficient two-stage filter element.
Patent DE-2909638-A1 (DE)
Title: Street cleaning roller brush - has bristles all cut to re-equipped finished length, then welded
Inventor: WEBER HEINZ
IPC: A46B3/06
Filed: 1979-03-12
Abstract: The bristles (3) which are held clamped in between the arms (4) of the U-section socket of the brush element are manufactured so that their finished length equals the single bristle length of the finished brush element (1) whereupon the bristles are fixedly connected together e.g. by welding or gluing at their ends facing the socket. The welded ends now form a thickened bead which can be securely fixed in the socket without the need for any binding wire previously used to tie round the doubled up bristle lengths. Pordn. costs can be reduced by half.
Patent DE-2910634-A1 (DE)
Title: Windscreen cleaning solution with tarnish preventing action - is solution of alcohol soap silicone oil mixed under pressure
Inventor: HOELTER HEINZ ING GRAD
IPC: C11D9/36
Filed: 1979-03-17
Abstract: A mixture of >70% alcohol with soap and silicone oil is mixed in a vessel under >1 bar pressure, to give a windscreen washing and dirt-accumulating-prevention solution. The solution has a durable tarnishing preventive action and does not cause cloudiness or freezing.