baber/WOPTO huggingface dataset:
Patent DE-2905354-A1 (DE)
Title: Chemical or mechanical treatment of silicon wafers - which are bonded to metal components held on magnetic plate immersed in bath for etching of the wafers
Inventor: AKYUEREK ALTAN ING GRAD
IPC: B28D5/00
Filed: 1979-02-13
Abstract: The wafers are soldered or alloyed onto metal components, which are laid on a magnetic plate; after the chemical treatment of the wafers, the metal components are removed from the magnetic plate. The magnetic plate is pref. coated with a plastic which resists etchants, and is immersed in an etching bath for the chemical treatment of the wafers. The process is used e.g. to etch pn-junctions on the wafers, or for lapping, polishing, or shot blasting the wafers, where the support offered by the metal components prevents the fracture of thin Si wafers during the treatment.
Patent DE-2906086-A1 (DE)
Title: Stand column for cattle holding - has straight bottom section, angled middle section and top section for attachment of rope
Inventor: LANGER PAUL G
IPC: A01K1/00
Filed: 1979-02-17
Abstract: The stand column is used for holding cattle. It can be fixed to the stall base or to a feed crib. It consist of a straight bottom section, to which drinking bowls (8) can be fixed at a section which is angled with respect to the bottom section, and of a top section which can be used to fit a top tranverse pipe to hold a tie-up device. The angled section forms the middle section (12). It starts approx. 0.5 m above the bottom end of the bottom section and ends about 0.9m above the bottom end of the bottom section (4).
Patent DE-2906256-A1 (DE)
Title: Shearing machine for cutting compressed scrap metal - has rearward extending cover to cope with extra long bundles
Inventor: OBERLAENDER WERNER
IPC: B23D31/00
Filed: 1979-02-19
Abstract: A shearing machine is designed to cut long bundles of compressed scrap metal into convenient lengths. The machine has a pneumatic or hydraulic ram (23) which pushes the scrap metal (40) between the guide plates (11) to the shear blade (3). The machine is able to cope with long bundles of scrap by means of a cover plate (30) attached to the ram and extending rearwards over the ram cylinder. This cover plate (30) has a hinged flap (33) at the outer end, actuated by a jack (31), which pushes the scrap towards the shear blade (3).
Patent DE-2926572-A1 (DE)
Inventor: BUEHLER WOLFGANG DR
IPC: A61M25/00
Filed: 1979-06-30
Abstract: A dividable short catheter tube made of a modifying polymer intermixed with, or inserted into, a base polymer. The modifying polymer is usually one which is incompatible with the base polymer. The dividable short catheter tube is readily tearable longitudinally so that it can be removed from around a flexible catheter after the flexible catheter has been guided into a patient by means of the short catheter previously positioned in a body puncture. The tube can be extruded from a mixture of the two polymers or it can be extruded with modifying polymer longitudinal strips in walls of the base polymer.
Patent DE-2931783-A1 (DE)
Title: Air cooled tractor engine - has ducted flow over cylinder head and block with sound proofed cladding
Inventor: JANSEN WILHELM
IPC: B60K11/06
Filed: 1979-08-04
Abstract: The air cooled tractor engine has the fresh air taken in by side grilles at the rear of the covered engine and in front of the cab. The air is collected in a rear chamber and ducted over the top of the engine and through the cylinder heads to a front fan where it is expelled. The whole assembly is on a sound proofed cover. The rear entry of fresh air prevents clogging with straw and debris. The air is ducted to cover the hydraulic heat exchangers as well as cylinder heads and engine block.
Patent DE-2937077-A1 (DE)
Title: Electrical insulation testing - using heated low viscosity indicator liq.
Inventor: SPERLING KLAUS
IPC: H02K15/12
Filed: 1979-09-11
Abstract: Method of testing the insulation of electrical conductors, specially of enamelled wire with an additional glass fibre braiding, is based on using a liq. indicator with a higher b.pt. to suit the test temp. and with very little dissolving power for gases of the solvent. This is heated to the test temp. and held at it. Well dried sample of the conductor at room temp. and with no moisture content is dipped into the liq. and observed for a certain time. A low-viscosity liq. indicator, e.g. silicone oil, is used for revealing any bubbles.
Patent DE-2940440-A1 (DE)
Title: Transformation system for colour coordinate system - transforms digital chroma signal from rectangular coordinates into digital colour signal and saturation signal in polar coordinates
Inventor: KUEHN FRANZ DR
IPC: G06F1/035
Filed: 1979-10-05
Abstract: The polar colour coordinate system is divided into quadrants, each identified by a number. The higher bits in the chrominance signal are evaluated first to determine the relevant quadrant. The equations for transforming the chrominance signal into colour signal and saturation signal for this quadrant are stored in a table memory. The colour signals for all quadrants are obtained from the quadrant number and the stored values. The amount of storage space required is reduced by subjecting the signals to a shift in position before addressing the table memory. This shift is reversed when the values are read from the table memory.. The system is fast, cheap and reliable.
Patent DE-2941241-A1 (DE)
Title: Vehicle directional course indicating appts. - has magnetic system with air gap and back coupling in arrangement without magnetic stray lines input or output
Inventor: WEHDE HEINZ DR RER NAT
IPC: G01R7/00
Filed: 1979-10-11
Abstract: The indicating apparatus contains a permanent magnet system, rotatable about an axis, as well as stationary coils for generation of torque for the magnetic system, as in 2924617. The magnet system (2) comprises at least one air gap (4) and a rotary reverse coupling (3). It is so designed that no magnetic stray lines can be fed in or out. At least two coils (9,19) penetrate into the air gap, their torque effectiveness onto the rotary magnet system is mutually orthogonal in the rotary plane. Preferably the coils are arranged round the periphery with a mutual offset of 90 deg. One coil (9) may have two windings offset by 180 deg., while the other coil (19) may have also two identically arranged coils. The magnetic system has typically two permanent magnets (5-8) round the periphery and with an offset of 180 deg. It may be of cylindrical design with an annular radial air gap.
Patent DE-2942310-A1 (DE)
Title: Centrifugal screen for removing water from coal - has fine mesh formed from triangular section wires which support equally spaced rings
Inventor: SUMNER DOUGLAS ARTHUR
IPC: B01D29/44
Filed: 1979-10-19
Abstract: A centrifugal screen for removing water and fine particles from coal is in the shape of a frustrum of a cone with a circular support ring (14, 16) at each end. These rings (14, 16) are joined by straight rods (22) of T shaped cross-section which support a number of equally spaced wire rings (20) of rectangular cross-section. The rectangles formed by the intersection of the rings (20) and rods (22) are filled with parallel wires of triangular cross-section with very small gaps between them to permit the passage of water or very fine particles.
Patent DE-2945520-A1 (DE)
Title: Pneumatically operated membrane pump for fuel - has movement of pneumatic valve limited by spring loaded stepped spigot
Inventor: BAUMGARTNER HANS DIPL ING
IPC: F02M37/12
Filed: 1979-11-10
Abstract: The pump has a membrane (34) whose movement produces a pumping action in a chamber (30). The chamber has inlet (29) and discharge (24) valves for fuel. The driving chamber (50) on the other side of the membrane has an opening (51) to atmosphere and a connection (49,54) to a source of suction. The suction connection is closed by a valve plate (46). The valve plate is carried in the bottom of a cylindrical holder (45). A spring (44) acts between the top of the holder (45) and the base (43) of a stepped spigot (40) attached to the membrane and projecting through the holder. The bottom of the spigot limits the movement of the valve.
Patent DE-2946781-A1 (DE)
Title: High torque screw head - has curved eccentric faces for engagement by tool
Inventor: BALKAU ROLF
IPC: F16B23/00
Filed: 1979-11-20
Abstract: The screw head allows heavy torque to be transmitted from the tool to the shank, and has curved faces (1), eccentric to the screw axis (6), for engagement by the tool. There can be three such faces, formed in a recess in the head, and also on the outside, the centres of the faces lying on a pitch circle concentric to the screw, and whose radius is approx. half that of the intersection point of two faces from the screw centre. The tool can comprise a bar profiled to fit in the socket formed by the internal faces and/or a disc with a recess fitting around the external ones.
Patent DE-2950229-A1 (DE)
Title: Electric toaster allowing single-side - has one of facing heating elements selectively switched off via manual switch
Inventor: DECHANT DIPL-WIRTSCH
IPC: A47J37/08
Filed: 1979-12-13
Abstract: The electric toaster is arranged so that the slices of bread are inserted between two facing radiant heating elements (10,12). One of these can be independently switched ON and OFF via a switch (58) mounted on the side of the toaster housing. This switch (58) may also control a display light (54) which is switched ON when the heating element (12) is switched OFF. The two heating elements (10,12) are either connected in parallel or if they are connected in series a resistor of at least the same resistance as the heating element (12) is connected in front of the remaining heating element (10) as the former is switched OFF. The toaster allows a slice of bread to be toasted on one side only.
Patent DE-2952001-A1 (DE)
Title: Lightweight emergency car wheel - has segmented wheel disc and moulded tyre
Inventor: OPEL PAUL DIPL PHYS
IPC: B60C7/28
Filed: 1979-12-21
Abstract: The lightweight emergency wheel for a car has the wheel disc assembled from two or more segments which clip together around the hub and with an outer support ring for the solid rubber tyre (5). The wheel is bolted in place of a damaged wheel and enables the car to be driven at moderate speed to a garage. The segmented wheel disc allows it to be stored in a compact space and assembled when required. The edges of the support ring are flanged so that the rubber tyre can be pushed on from one side and with a securing flange to hold the tyre on the rim.
Patent DE-3005437-A1 (DE)
Title: Plug for masonry fitting - has restricted end with axial slits for splayed grip
Inventor: GOERGEN BERNHARD
IPC: F16B13/10
Filed: 1980-02-14
Abstract: The masonry plug for fitting of wallboards has a moulded insert for fitting through predrilled holes in the wallboard and into holes in the masonry. The plug is secured by driving a fitting pin (2) into the plug, to splay out the plug end and grip the wall. The outer part of the plug has a collar (5) to hold the wallboard. The end of the plug has a restricted inner diameter with moulded outer grooves (6), which also form grip edges when splayed out. The rest of the plug has an inner diameter larger than the pin diameter, except for a reduced section (4) to locate and guide the pin.
Patent DE-3008731-A1 (DE)
Title: Heat transfer pipe assembly - is enclosed by heat accumulation material in turn enclosed by insulating material
Inventor: FRIEDRICH GUENTER
IPC: F24D10/00
Filed: 1980-03-07
Abstract: The heat-transfer equipment comprises a heater pipe with heat insulation. The pipe (1) or pipes are enclosed in heat- accumulation material (2), which in turn is fully enclosed by the insulating material (4). A heat-reflecting sheet, typically made of aluminium foil (3), can be fitted between the two materials, and the heat insulation can comprise thick-walled channel sections (5), open on one side with covers (6), or alternatively foam. It can be enclosed by protective sheet material (4).
Patent DE-3010446-A1 (DE)
Title: Fire door spring hinge strip tube mounting - has collar and spring socket flange holding plastics ring turning in clamping head
Inventor: KOERLING W
IPC: E05F1/12
Filed: 1980-03-19
Abstract: Flaps on the door case and the leaf are rotatably linked by a spring socket inserted through three tubes. The top and bottom tubes are joined to the case flaps and the middle one is joined to the leaf flap, while the socket has a top clamping head with collar on the top tube, in a spring hinge strip for a fire-protection door. A cylindrical plastics ring (7) is rotatably housed in a cylindrical surface (13) in the clamping head, and axially held by the collar (16) and by flanging in the socket. Detachable friction connection is maintained between the ring and top tube (6a).
Patent DE-3019418-A1 (DE)
Title: Double-coil self-holding solenoid - has fixed and moving armature with shaped interlocking ends and incorporates permanent magnet
Inventor: TADE KIICHIRO
IPC: H01F7/122
Filed: 1980-05-21
Abstract: The solenoid with a fixed armature (13) and moving armature (16) uses two excitation windings (25,26) concentrically wound around them. A permanent magnet (14) is incorporated either within the fixed or moving armature, its magnetism being opposed or assisted by the current through them and so that it can act as a self holding solenoid. The inner end of the moving armature has a raised part (22) which fits inside a recess (21) in the end of the fixed armature, giving an improved action without sticking and jerkiness. The two armatures armatures are enclosed by a tube (15) of non-magnetic material, inside the inner coil (25). When they are apart, the magnet is positioned half way along the magnet yoke (10) between its ends. The inner coil is the operating coil, and the outer coil (26) the counter coil.
Patent DE-3021946-A1 (DE)
Title: Polyurethane elastomers contg. bubbles - for use as filling in pneumatic tyres
Inventor: BONIN WULF VON DR
IPC: B60C5/00
Filed: 1980-06-12
Abstract: Puncture-resistant pneumatic tyres for bicycles are filled with bubble-contg. with bubble-contg. polyurethane elastomer with a Shore A hardness of 20-80 and a total bubble content of 1-10 vol.%, the dia. of the bubbles being 0.5-5 mm. The fillings are introduced e.g. by mounting the tyre vertically, introducing via a valve at the bottom of the tyre a reaction mixt. contg. a low viscosity polyhydric polyhydroxy cpd., water. opt. catalysts and 2- and/or more nuclei-contg. aromatic polyisocyanates, but without the addn. of silicone foam stabiliser, whilst allowing the expelled air to escape from a valve at the top; fixing a desired pressure e.g. of 0.5-8 bar, and allowing the mixt. to react under the prevailing press. to form the desired bubble-contg. poly- urethane elastomer filling. Process allows easy introduction of the foam compsn. into the tyre, with in-situ reaction of the components to give the bubble- contg. elastomer filling. The filled tyres are safer and have improved resistance to puncturing by thorns, nails and glass splinters.
Patent DE-3028160-A1 (DE)
Title: Flexible coupling driving fuel injection pump - has spool between coupling disc sets and dampers to minimise axial spool oscillation
Inventor: FORSTHUBER PETER DIPL ING
IPC: F02M39/02
Filed: 1980-07-25
Abstract: The flexible coupling is intended for driving an engine fuel injection pump and comprises an input flange (2) which is coupled to an output flange (2') via respective sets of flexible coupling discs (4,4') and an intermediate spool piece (6,7,6'). Bolts (3,5; 3',5') connect each flange to the discs and the discs to the flanges (6,6') of the spool piece are circumferentially staggered. At least one set of coupling discs is provided with a damping element (8) to minimise axial oscillation of the spool piece. The element may be rubber, pref. with a Shore hardness between 40 and 80.
Patent DE-3029467-A1 (DE)
Title: Cowshed silage supply equipment - uses silos with compression rollers lowered inside by telescopic support, discharging into feeding trough
Inventor: SCHMINKE RUDOLF
IPC: A01F25/16
Filed: 1980-08-02
Abstract: The silo arrangement for supplying green silage to a cowshed uses a line of three tall cylindrical silos which can discharge onto a conveyor belt alongside their three bases. The belt discharges into a junction for the end of a screw conveyor so that the silage is conveyed onwards at right angles for discharge into a long feeding trough between two lines of cows. The silos are loaded by a vehicle with a telescopic jib. Also suspended from the top is a multiple section telescopic cylinder with a horizontal driving shaft supported across the bottom, with a line of eccentric roller discs which can be lowered inside to rotate against the silage inside, to compress it.
Patent DE-3037910-A1 (DE)
Title: Heat pump for district heating system - is connected immediately behind heat exchanger with feedback to same
Inventor: LANDSCHULZE ERNST-AUGUST
IPC: F24D11/00
Filed: 1980-10-08
Abstract: The heat pump is used in conjunction with a heat exchanger in a district heating system and is connected immediately behind this heat exchanger. The heat-transfer medium, brought in the pump to the desired higher temperature, is returned to the heat exchanger, or alternatively delivered to others, or used to supply a thermal technical process. The pump can be driven by a steam engine supplied with steam directly or indirectly from the heat-transfer medium of the district heating system. The steam engine may have a condenser also acting for the heat pump. The engine can be of the piston, screw-expansion or turbine type.
Patent DE-3038831-A1 (DE)
Title: Explosive dismantling of tubes - using internal charges in central tube for directional severing
Inventor: BOEHM BRUNO DIPL ING
IPC: G21D1/00
Filed: 1980-10-15
Abstract: Tubes and nests of tubes with difficult access, e.g. in boilers of nuclear power stations which have to be dismantled for premature replacement or a permanent shutdown of the station, are broken up by explosive charges. An explosive charge is lowered into a central tube within a group and is ignited at the desired depth. A thin profiled metal ring surrounds the charge to intensify the cutting action. The explosive charges pref. have one or two detonators and are arranged around a hollow (a) or solid (b) element. The cutting action is pref. intensified by a profiled metal ring with an insulating (plastic) coating. The explosive is pref. retained between two plugs. This exposes the personnel during dismantling operations to a minimum of radioactive radiation.
Patent DE-3042813-A1 (DE)
Inventor: ETLING HANS DIPL CHEM DR
IPC: C08L61/30
Filed: 1980-11-13
Abstract: 1. A process for the preparation of aqueous solutions of aminoplast condensates, which can be used as wood glues and contain melamine and urea as aminoplast-forming compounds, the molar ratio of aminoplast-forming compounds to formaldehyde being less than 1.5, and the proportion of condensates containing melamine being at least 30% by weight, wherein urea and melamine are condensed separately with formaldehyde, and at least for the melamine-formaldehyde condensate the concentration of the starting materials is so chosen that a molar ratio of formaldehyde to melamine of less than 1.5 results and that the solution initially contains less than 60% by weight of condensate, and the condensates are combined after optional concentration.
Patent DE-3044035-A1 (DE)
Title: White writing ink compsn. - comprising resin dispersed in organic solvent, opt. chlorinated benzoic acid and/or organo-metallic cpd. and organic solvent
Inventor: KRIEGLSTEIN WALTER ING GRAD
IPC: C09D11/16
Filed: 1980-11-22
Abstract: White writing ink comprises an organic solvent (I), opt. film formers and fillers and as the whitening agent, a resin dispersed in a different organic solvent to (I) and/or (I) soluble opt. chlorinated benzoic acid and/or a (I) soluble organometallic cpd. which forms a hydrolysis prod. after evapn. of (I). The white pigment is pref. a polyethylene dispersion in isopropanol or a PTFE dispersion in xylene and (I) is ethyl glycol, isopropanol, butanol and/or an acetic acid ester. Alternatively, the pigment is 2-chlorobenzoic acid or tetra- isopropyltitanate, thanium (IV) chloride and/or aluminium triethylate and as (I), ethyl-, butyl-, propyl acetate, ethylene glycol monoethyl ester, toluene, isopropanol and/or butanol. The compsn. pref. contains a (I) swellable resin esp. PVC or a colloidal urea-HCHO polymer. The ink produces matt white marking on (non)-transparent substrates and can be used in writing implements with capillary structures.
Patent DE-3045394-A1 (DE)
Title: Magnetic field generator - has wafer of slim appearance and simple variable blocking oscillator
Inventor: BANGERT WOLFGANG
IPC: A61N2/02
Filed: 1980-12-02
Abstract: This magnetic field generator therapy instrument is designed in wafer slim form so as to make it easily portable and is provided with special trim to give it a pleasing appearance. A simple battery driven variable blocking oscillator with dipole aerial forms the electronics. The slim, flat housing (2) encloses the circuit board (4) on which the dipole aerial (5), the battery (6) and the electronic circuit (3) are mounted. A frame (30,31) gives rigid support to the front-and back plates (7,29).
Patent DE-3049144-A1 (DE)
Title: Expanded concrete block prodn. system - moves cutting wires axially to and fro during upward movement
Inventor: GUNZELMANN RUDOLF
IPC: B28B1/50
Filed: 1980-12-24
Abstract: The material, partly set in a mould is cut into desired size by wires (28) moving upwards and axially reciprocated during this movement. Adjacent wires are preferably moved in opposite directions. The wires may cross each other without touching. The production device comprises a platform trench, on which is insertable a dismountable mould (14) with a number of wires in its open bottom, both longitudinally and transversely parallel. During the upward movement the wires are reciprocally movable by an oscillation or swing drive (26), attached to the mould.
Patent DE-3049475-A1 (DE)
Title: Overhead supply rail train propulsion - has thrust cylinder engaging common pivotal, axis of scissors pattern stop levers
IPC: B61H9/02
Filed: 1980-12-30
Abstract: The suspended conVeyor has two holders with a hinged pair of stop levers for pressing against the rail, with transversely swivelling levers having jaws simultaneously engaging the top and bottom rail flanges and activated by a spreader at their other ends. The blocking levers (19,20) in each pair are arranged in a scissors pattern, and mounted on a common swivel axis (23). A forward thrust cylinder (16) engages this axis for one holder (14,15) in each case. The axis can have a connector (17) hinged to it, connected to the cylinder to swivel about a parallel axis.
Patent DE-3100221-A1 (DE)
Title: Transition sleeve for connecting oil-impregnated, paper-insulated cables to plastic-insulated cables
Inventor: OSTERWOHLDT KARL-HEINZ
IPC: H02G15/10
Filed: 1981-01-07
Abstract: The invention relates to a transition sleeve for connecting oil-impregnated, paper-insulated cables to plastic-insulated cables in the medium-voltage range. The object is to develop a transition sleeve which protects the conductor connecting point and the cable entry regions inside an inner sleeve against all external influences, using prefabricated and simple means, and which at the same time entrusts the protection devices, which are provided for this purpose, of a conductor connecting point with the additional function of field control. The solution essentially comprises the use of sealing elements which can be pushed on, are provided with field-controlling chamfers in the region of the conductor connecting point and have the same configuration on both the plastic side and on the compound side in the region of the cable entry points. In consequence it is possible to install such a transition sleeve in one working day (8 hours).