baber/WOPTO huggingface dataset:
Patent DE-2931919-A1 (DE)
Title: Cylinder for reciprocating piston IC engine - has opposed action pistons coupled to common crankshaft via double-ended swivel arms
Inventor: RISS ECKHARD
IPC: F02B75/28
Filed: 1979-08-07
Abstract: The reciprocating piston combustion engine comprises two opposed-action pistons in a common cylinder. The piston rods are coupled to the ends of double-ended swivel arms whilst the other ends move connecting rods driving a common crankshaft. This doubles the available piston area and the stroke sweep velocity. The length of the stroke and the crank throw can be optimised by selecting the lever ratio of the swivel arms.
Patent DE-2943767-A1 (DE)
Title: Recorder strip winding drive for providing optional lengths - has button pushed to disengage transport roller for rewind
Inventor: KRUBKE HANS HERMANN ING GRAD
IPC: B65H18/10
Filed: 1979-10-30
Abstract: A paper roller drive for recording devices with arrangements for rewinding the recording medium counter to its usual direction enables the medium to be rewound by any desired length. This is achieved without the use of an additional motor. A detachable coupling (2) is positioned between the recording strip transport roller (1) and its drive system. When it is required to rewind the strip a button (8) is pressed to disconnect the transport roller from its drive system. The removal of the transport roller load from the motor causes the winding roller revolution rate to increase. The coupling (2) is mounted on a hollow shaft (5) in which the axle (4) of a drive wheel (3) runs. The drive wheel is pressed against the coupling by a spring (7) whose force is overcome by pushing the button (8).
Patent DE-2944347-A1 (DE)
Title: Di:alkyl-aminoethyl ester(s) of indomethacin - obtd. by esterification of indomethacin with an isourea deriv. of an aminoalcohol
Inventor: KAPPE THOMAS PROF
IPC: C07C275/70
Filed: 1979-11-02
Abstract: Indomethacin esters of formula (I) and their hydrochlorides are new, (where R is Me or Et or a higher homologue). (I) can be prepd. by heating indomethacin in benzene with an isourea deriv. (III) of an amino-alcohol. The esterification proceeds smoothly, and gives good yields.
Patent DE-2947601-A1 (DE)
Title: Half tone tactile pictures - have deep etched metal master with rubber moulded prints suitable for feeling by blind people
Inventor: POLLAK RUDOLF
IPC: G03F5/00
Filed: 1979-11-26
Abstract: A half tone tactile picture is prepared by deep etching a raster pattern on a metal master, with the raster modulated by the picture content. The master is etched deeper than a print master, and with a coarser raster. A silicone rubber moulding, with the image printed on top forms the tactile emulsion. The process changes conventional pictures into tactile images which can be scanned by the sensitive, trained fingers of blind persons. The etched pattern can be prepared by conventional photolithographic processes or by a programmed laser etcher.
Patent DE-2948659-A1 (DE)
Title: Electromechanical transducer of electrostrictive ceramic - has control electrode between ceramic film strips and outer electrodes at fixed opposite potential
Inventor: SCHNELL AXEL DIPL PHYS DR RER
IPC: H01L41/09
Filed: 1979-12-04
Abstract: Electromechanical transducer consists of electrostrictive ceramic. The transducer body consists of 2 superimposed, firmly bonded ceramic film strips with a common electrode between them, whilst there is another electrode on the other side of each film, as in DE2918625. The novel feature is that both films (11,111) are controlled with a control voltage Ua and both the other electrodes are at fixed but opposite voltages (+Uv, -Uv) above the control voltage (Ua). A bimorphous configuration is obtd. using a simplified circuit. Pref. the body consists of ferroelectric material with a high dielectric constant at operating temps. above the Curie temp. A mixed ceramic based on Ba/Ca titanate/zirconate, pref. with the compsn. 87 mole-% BaTi03 and 13 mole-% CaZr03, opt. contg. max. 1.7 mole-% each of Nb205, ZnO and/or Ti02, is pref.
Patent DE-2951819-A1 (DE)
Title: Turbo-centrifugal separator for solid particles - has outlet for air and fines at each end of rotor shaft
Inventor: BARTHELMESS ULRICH
IPC: B07B11/06
Filed: 1979-12-21
Abstract: A turbo-centrifugal separator for solid particles, with tangentially supplied air, has an outer ring of adjustable guide blades and a central rotor with radial channels. Material is fed into the circular gap between blades ring and rotor, and particles larger than a size specific to each setting drop into a vertical outlet. Smaller particles are entrained by air and leave by outlets in the housing at both ends of the rotor, these outlets having similar dia. to the rotor. The outlets are curved or bent pipes from which air is extracted for re- circulation. The rotor shaft ends pass through air- cooled bearings. Suitable for calcium carbonate granules. Has high output due to long separator wheel and double outlets whose large size permits low air flow rates (under 30 metres/sec.) which prevent fine material adhering to walls, as does the cooling produced by air chambers round the outlets.
Patent DE-2952475-A1 (DE)
Inventor: BELTZ KLAUS DIPL CHEM DR
IPC: C22B60/02
Filed: 1979-12-27
Abstract: The invention concerns a method for the liquid/liquid extraction of uranium from phosphoric acid with the aid of alkylamine polyphosphate and/or alkylamine metaphosphate compounds, dissolved in organic solvents insoluble in water, in the presence of FeII ions. The uraniferous phosphoric acid is brought into contact with an organic phase. The organic phase is composed of a long-chain alkylamine polyphosphate and/or alkylamine metaphosphate compound and an organic solvent, the alkylamine in the alkyl residue containing 8 to 30, preferably 8 to 18 C-atoms corresponding to the formula   <IMAGE> R1 and R2 denoting hydrogen or alkyl radicals and R3 alkyl radicals, the polyphosphate and/or metaphosphate residue having 2 to 10,000 P-Atoms per molecule and being of the straight-chain and/or link-chain or cyclic type. The uranium is transferred from the aqueous into the organic phase from which the uranium is reextracted in the know way.
Patent DE-3001527-A1 (DE)
Title: Roller-reefing gear for sails - has epicyclic reduction gear between reefing-line-rotated drum and sail-luff-holding tubular section
Inventor: GAETH WILLI
IPC: B63H9/10
Filed: 1980-01-17
Abstract: The reefing gear for sails is basically conventional, comprising a drum with a reefing-line around it for rotating it in either direction, connected to a coaxial hollow-section to which the sail's luff is secured. However the connection between drum (11) and section (10) is via reduction gearing (6), pref. epicyclic. A fixed core (2) with an extension (3) through the section has a flange-plate (5) carrying the gear-annulus (15) and a spring-loaded expanding-shoe brake (7) connected to a linkage so arranged that pull on the reefing-line releases it. The reefing-line (14) is pref. endless.
Patent DE-3005273-A1 (DE)
Title: Yearly wall calendar sheet - shows month, date and day of week indications in lines or columns with detachable cover elements
IPC: B42D5/04
Filed: 1980-02-13
Abstract: The yearly wall calendar has one sheet showing calendar month indications in columns or lines following each other. It gives the date with the corresponding day of the week details in successive lines or columns. Different cover elements (15-17) which can be taken off as required are fixed to the sheet are attached by adhesive connection arranged as per calendar progression on the sheet (10) and covering at least one date indication (13) with corresponding day of the week indication (14). The cover elements (15-17) and/or the sheet are made from non-transparent material.
Patent DE-3013616-A1 (DE)
Title: Urea and ammonium nitrate fertiliser anticaking and anti-dusting - with reaction prod. of urea, formaldehyde, hexa-methylene:tetramine and water
Inventor: ZAAKE WOLFGANG
IPC: C05C5/00
Filed: 1980-04-09
Abstract: In a new process for the treatment of urea and ammonium- and nitrate-contg. fertilisers with formaldehyde prods., the treatment is carried out with a reaction prod. of urea, formaldehyde, hexamethylenetetramine (HMTA) and water. Used in anti-dusting and anticaking treatment of urea and ammonium/nitrate fertilisers to simplify transport, transfer and storage. Reaction prod. requires only a minimal amt. of water to permit uniform application to the fertiliser. Conditioning agent can additionally serve as a carrier medium for the addn. of additives such as urease inhibitors, nitrification inhibitors, etc.
Patent DE-3017082-A1 (DE)
Title: Extended heat exchanger panel - has webs with corrugated surface and flat crests and troughs on main corrugations
Inventor: BUCHWALD BERNHARD DIPL ING
IPC: F28F3/02
Filed: 1980-05-03
Abstract: The heat exchanger panel has a corrugated surface, with webs to connect the crests and troughs of the corrugations. The webs (3) also have a corrugated surface. The crests (4) and bases (5) of the corrugations of the webs are orientated in direction of the slope of the webs. The system is designed to give the panel increased strength in bending, and the corrugations in the webs (3) of the main corrugations ensure a greater resistance of these webs to buckling.
Patent DE-3020314-A1 (DE)
Title: Diamond dressing tool for grinding disc - has up to 20 degrees inclined tool shank, negative cutting angle, and 1 to 4 degrees clearance angle
IPC: B24B53/12
Filed: 1980-05-29
Abstract: The tool assembly is intended for dressing a grinding disc (5) and comprises a tool shank (7) which is secured in a tool holder at an inclined angle (3) of about 0 to 20 deg. The shank carries a cutting tool in synthetic diamond material with negative cutting angle. The clearance angle (15) is between 1 and 4 deg., pref. between 1 and 3 deg. The cutting tool may have its two side faces (10,11) parallel to its centre line (2), which coincides with the shank axis (2), whilst its front end has two faces (12,13) at an angle (14) to the respective faces (10,11) equal to 90 deg. plus the clearance angle (3) minus the shank angle (15), for use in two alternative positions.
Patent DE-3020662-A1 (DE)
Title: Gynaecological intra-uterine probe - has wing-formed sleeve and foreshortening rod operated by bush-button actuated rotary cam
Inventor: HASSON HARRITH M
IPC: A61B17/42
Filed: 1980-05-30
Abstract: The multi-purpose intra-uterine probe sounds the depth of the fundus and measures the width of the uterus at two different insertion depths. It has an extendable wing mechanism with two stable wingspreads selected by a ball-point pen-type push-button control mechanism. Indicating windows which are colour-coded in relation to the rotating push-button of the control mechanism illustrate the proper sequence of read-out locations. The entire probe, including both the flexible wing-forming sleeve (44) and the connecting rod (46) which foreshortens the sleeve to collapse it into its wing configurations, is a disposable component which removably and replaceably connects to the handle assembly. The foreshortening rod connects to an actuating mechanism which reciprocates the rod relative to the handle tube (34).
Patent DE-3020797-A1 (DE)
Inventor: SASSERATH AREND
IPC: F24D19/10
Filed: 1980-05-31
Abstract: 1. Thermically controlled safety device for boilers (10) heated with solid fuels in closed heating installations, with which, in case of an over temperature in the heating installation, cold fresh water from the delivery conduit is taken into the system of the heating installation and hot heating water is let off into a drain (44), comprising a fresh water supply conduit (20) conducted to the system of the heating installation and connected to the delivery conduit, in which supply conduit a pressure reducer (22), a temperature controlled valve (34) and a tube separater (24) are arranged in series, and a drain conduit (42) connected to the system of the heating installation, in which a thermic drain safety device (38) is provided, the thermic drain safety device (38) being controlled by the same temperature sensor (36) as the temperature controlled valve (34), which temperature sensor (36) is exposed to the heating water temperature, and opening at a slightly higher temperature than this valve, characterized in that (a) the tube separator (24) has a passage port (30) of large diameter and a control port (32) of small diameter (b) the passage port (30) is connected directly to the outlet (66) of the pressure reducer (22), and (c) the control port (32) likewise connected to the outlet (66) of the pressure reducer is governed by the temperature controlled valve (34) formed as disc valve, which is controlled by a valve stem (46) longitudinally movable by the actuating member (40) of the temperature sensor (36) and also controlling the valve disc (104) of the thermic drain safety device (38).
Patent DE-3028070-A1 (DE)
Title: Pneumatic life jacket pressure controller - is multiple valve incorporated in jacket to reduce buoyancy to slow speed of ascent
Inventor: BIRLE THEO
IPC: B63C11/08
Filed: 1980-07-24
Abstract: The pressure control system for an inflatable jacket worn by a diver, includes a valve (1) connected by a tube (2) to an opening through the wall (4) of the jacket, communicating with its interior. The valve contains a partition (7) acting as a piston, connected by a spindle (12) to another valve member (14) fitting inside a seating (15) incorporated in the wall of the jacket. During normal slow immersion, there is an equalisation of pressure between the upper and lower chambers (18,19) each side of the piston, by leakage through a throttling opening (11) included in the piston and also through the connecting tube (2). For sudden immersion, a relief valve (10) in the piston is opened. The system operates so that when the diver again rises to the surface due to the buoyancy of the jacket, the speed is reduced by reducing the air pressure inside, to avoid harmful effects on the diver.
Patent DE-3030153-A1 (DE)
Title: Self-adhesive label print and dispense unit - has print type-strip adjusting spindle returned to passive position by next operation
Inventor: HOLLAND-LETZ GUENTER
IPC: B41K5/02
Filed: 1980-08-08
Abstract: The hand-operated (price) labelling unit prints and dispenses self-adhesive labels. It comprises a housing containing a print unit (7) with roller (5) which is rotatable about an axis (6) between a rest and a print position and carries strips (9) with printing type (9a). A rotatable adjusting spindle (8) using knob (19) is tangential to the roller and can be axially moved to engage one of the strips for adjusting the corresponding digit to be printed. Stops (22 and 23) on the spindle and on the housing respectively engage mutually when the roller is rotated into the print position to move the spindle into its pushed-in position and thus prevent damage to the type adjusting mechanism.
Patent DE-3030180-A1 (DE)
Title: Rolled bar stock adjustable gripping device - has two sliding jaws with segmented, tapered, internal surfaces, moved together and located by backing blocks
Inventor: WASSEN JOHANNES ING GRAD
IPC: B23B31/12
Filed: 1980-08-06
Abstract: The gripping device to hold rods, bars or tubes, particularly thin walled tube during cutting or grinding operations etc., has two jaws (3) moved together and apart by blocks (1,2), to which they are fitted. Each jaw is formed by a shell with a sloping internal surface, the two internal surfaces forming a funnel-shaped gripping opening when moved together. Each internal surface is formed by a half-circle of longitudinal segments (4) mounted in an adjustable manner. The two jaws can be slid longitudinally to increase or decrease the size of the opening between them. The two outer blocks have end surfaces to act as stops for the sliding jaws.
Patent DE-3031946-A1 (DE)
Title: Slow small DC motor for record player - has shaft inside first tube that fits inside second tube carrying rotor
Inventor: PAPST GEORG
IPC: H02K7/20
Filed: 1980-08-25
Abstract: The dc motor has its permanently-magnetic stator provided with a bearing support tube (14) to hold the rotor shaft (17). The rotor (55) has a fixing tube (24) fixed to its shaft and enclosing the bearing support tube. The elements (56) of the magnetic circuit and the winding (59) of the rotor are fixed to this fixing tube. The fixing tube is connected to the shaft via a part (23) cast onto that shaft. The elements of the rotor magnetic circuit are fixed -- especially bonded -- to the unprocessed cast fixing tube. The part (23) cast onto the shaft has an outer diameter at least 0.8 times and pref. greater than 1 times the outer diameter of the stator magnet arrangement (63,64). This diameter is pref. 1.2-1.4 times the outer diameter.
Patent DE-3036587-A1 (DE)
Title: Coin-operated parking meter - has distance of coin guide paths, adjustable using scanning pin with automatic adjustment
Inventor: KISSINGER HEINRICH
IPC: G07F17/24
Filed: 1980-09-27
Abstract: The parking meter has a coin chute with guide paths, contacted by the periphery of the coin. The distance of the guide paths automatically adjust to the coin diameter. A coin sensor is automatically deflected by the coin diameter. A scanning pin protrudes into the chute transversely to the coin movement direction. The pin can be moved away from the chute plane against a spring force. In its chute penetrating position, the scanning pin blocks a time adjusting device of the meter time control. The scanning pin (9) is automatically adjustable to an identical distance from the coin guide paths (2,3) of the chute (1). Pref. the guide paths are also adjustable automatically to the same distance from the scanning pin. The latter may be connected to a coin scanner (6), forming one guide path (3), by a reduction gear.
Patent DE-3037788-A1 (DE)
Title: Underground gallery or tunnel excavating cutter shield - has swivelling connectors for transversely adjustable clamping straps, linked to floor blades
Inventor: STUCKMANN DIETER
IPC: E21D9/06
Filed: 1980-10-07
Abstract: Blades lie on the outside on a support frame made up from two interconnected pieces in tandem. They are moved along the shield axis by intervening thrust and traction members, while the bottom part of the shield is fitted with forward-driving blades, esp. floor blades adjustable in a longitudinal plane at right angles to the excavation walling. The system is used on a cutter shield for opening up tunnels or underground galleries, esp. of the horse-shoe type working in solid ground. The clamping straps (7) are held so as to swivel freely and be adjustable at right angles to the excavation walling, on connecting members (9) which are connected to the forward-driving floor blades (6) in this plane, so as to swivel. They may be held, with play allowed, in cutouts (8) aligned at right angles to the walling. The connecting hinge and driving blade are kept largely free from loading when the clamping strap is splayed.
Patent DE-3039886-A1 (DE)
Title: Microwave oven - produces even heating using antenna rotating beneath shaped reflector
Inventor: IKEDA NOBUO
IPC: H05B6/74
Filed: 1980-10-22
Abstract: The microwave oven has an antenna (17,19) rotating inside its heating chamber and radiating microwaves. A reflector (34) is located between the antenna and the roof of the heating chamber to reflect microwaves downwards. The reflector's dia. is roughly 4 times the length of the vertical part (18) of the antenna projecting down into the heating chamber. The reflector consists of a flat plate with a skirt so as to form an inverted pot. Alternatively, the reflector may be an inverted hollow truncated cone.
Patent DE-3040774-A1 (DE)
Title: Adjustable open end spanner - has one slidable jaw with inclined guide slot producing wedge effect
IPC: B25B13/50
Filed: 1980-10-29
Abstract: The adjustable open end spanner has a grip (12) with head part (28) on its end comprising a stationary jaw (10) and a channel in which the slide part (28) of the movable jaw (26) is operated by a screw (36). The end of the stationary jaw is split accommodating the fin extension (20) of the jaw bit (16). The jaw bit has a slot (22) with a sloping position towards the gripping surface (18). The jaw bit is guided on a pin (24) so that if a grip is rotated (direction A), the jaw bit slides towards the open end. The original jaw opening is reduced (L1 to L2) and a positive grip on the workpiece (a) is achieved.
Patent DE-3043161-A1 (DE)
Title: Volume control for music and commentary ratio - has transistor control unit to maintain constant volume ratio
Inventor: SICHA HORST
IPC: H03G3/04
Filed: 1980-11-15
Abstract: The volume control system is for audio recording and ensures that a constant volume ratio is maintained between music being recorded and an accompanying commentary. Input from either a microphone or direct source is applied to two inputs (2,3) of a preamplifier (1). Output is fed to an output amplifier (5) coupled to both a loudspeaker (3) and magnetic tape recording head (8). A transistor circuit (17,21) allows a required level to be set and an LED indicator monitors the level. When a microphone (26) is switched in (27) for commentary recording, a constant ratio with the music volume input is maintained.
Patent DE-3046289-A1 (DE)
Title: Dispenser for engine fuel and oil mixture - has pneumatically controlled dispenser actuated by ions to deliver specific fuel and oil volume, regulate by limit switch
Inventor: KUHN WOLFGANG
IPC: G01F11/06
Filed: 1980-12-09
Abstract: The dispenser for either engine fuel or a mixture of engine fuel and oil is intended to deliver a fixed volume in response to entry of a specific value of coins. The system is controlled by pneumatic valves and actuators and entry of a coin and triggers a relay to switch a main valve supplying air to the topside of the dispensing piston. The piston moves downwards and displaces the measure of volume through the outlet tube to the pump handle. At the bottom of the stroke a limit switch is tripped and the air supply cut off. The piston returns under spring action. A second dispenser delivers oil into the main fuel line.
Patent DE-3046934-A1 (DE)
Inventor: MUELLER ERHARD
IPC: F16H1/28
Filed: 1980-12-12
Abstract: 1. An epicyclic spur gear having a sun wheel (4) into which the operational torque is introduced from one axial side, having an internally toothed ring gear (11) which surrounds the sun wheel (4) concentrically, having a satellite carrier (7) which is disposed coaxially with the sun wheel (4) at the other axial side thereof and which carries planet pinion-axles (9) which are uniformly distributed over the circumference, are fixed to the satellite carrier (7) and project into the region between the sun wheel (4) and the ring gear (11) and having planet pinions (1, 2, 3) which mesh both with the ring gear (11) and with the sun wheel (4) and a plurality of which are mounted on each planet-pinion axle (9), characterised in that the bending resistance of the planet-pinion axles (9) and/or of their fixing in the satellite carrier (7) on the one hand and the torsional resistance of the sun wheel (4) and/or of its connection to the sun-wheel shaft (5) on the other hand are adapted to one another in such a manner that the extent by which the bending line (MM') of the resilient bending of the planet-pinion axles (9) in the direction of their rotational movement about the gear axis under the influence of the forces transmitted from the sun wheel (4) and from the ring gear (11) to the planet pinions (1, 2, 3) deviates from a straight line, and the extent by which an axial line (EE') traced on a tooth flank of the sun wheel (4) at the height of the operational pitch circle thereof is deformed in the circumferential direction substantially by torsion under the influence of the forces transmitted between the sun wheel (4) and the planet pinions (1, 2, 3), at least approximately compensate for one another.