baber/WOPTO huggingface dataset:
Patent DE-2902817-A1 (DE)
Title: Vehicle motion and stop detector - has vibrator and reed switch and retriggerable monostable multivibrator sensing switch state
Inventor: MAISCH WOLFGANG DIPL ING DR
IPC: G01P13/00
Filed: 1979-01-25
Abstract: The detector picks up the 'go' and 'stop' conditions for use with e.g. a travelling time measurement system or 'stop-start' automatic systems in the detector system. A vibrator in the detector system has a leaf spring (1) attached to one end to the vehicle (2) and carrying a weight (3) on the other end, which operates a switch (6) as it vibrates. The weight preferably is permanent magnet, and the switch contains ferromagnetic reed contacts (4, 5) which are periodically closed by the vibrating magnet. Near the vibration zone may be mounted a high frequency proximity switch. The vibrator is mounted on an unsprung part of the vehicle, in partic. on an axle, suspension strut, or linkage and has a natural frequency between 10 and 20 Hertz. The switch mode is evaluated using a retriggerable monostable multivibrator (MV) with a pluse time of 1 or 2 seconds.
Patent DE-2913321-A1 (DE)
Title: Forgery prevention system for banknotes - involves insertion of layer of crystals which change colour under pressure
Inventor: GELDMACHER ERWIN HELMUT
IPC: B42D25/29
Filed: 1979-04-03
Abstract: With modern copying machines it is possible to make copies of banknotes. These copies are difficult to distinguish from the genuine article and the device is intended to reduce opportunities for forgery which are otherwise greatly increased with reduced chance of detection. This type of forgery can be prevented by making banknotes from two sheets of paper (1, 2) with a layer of special crystals (4) between the two sheets. These crystals have the property of changing colour when subjected to pressure and reverting to their original colour when the pressure is removed.
Patent DE-2922434-A1 (DE)
Title: Switching circuit for ohmic or inductive load - has diac between triac and rectifier bridge controlled by diode with switch
Inventor: GRASSER HANS ING GRAD
IPC: H02M5/253
Filed: 1979-06-01
Abstract: The switching circuit for an ohmic or inductive load (2) includes a triac (1) in series with the load, and connected to a diac (3) supplying firing pulses. The diac is controlled by a parallel capacitor (4) and a variable resistance (5) connecting it to a rectifying bridge with four diodes (6 to 9). In parallel with the diac and the capacitor is a diode (16) with a switch in series which can be used to disconnect it. In an alternative circuit, the diode is between the diac and the resistance, and the switch in parallel with the diode.
Patent DE-2926177-A1 (DE)
Title: Dust-free furnace for drawing optical glass fibre from rod - has tube of monocrystalline zirconium and/or hafnium di:oxide
Inventor: SCHNEIDER HARTMUT DIPL CHEM DR
IPC: C03B37/029
Filed: 1979-06-28
Abstract: Dust-free furnace for optical glass fibre mfr. from a rod-shaped parison has an (in)directly heated tube in which parison is placed without contact and can be melted in a protective gas atmos. This tube of monocrystalline ZrO2, HfO2 or mixed crystals of both. The monocrystals also pref. contain alkaline earth oxide (MgO, CaO or SrO) or lanthanide oxide (Sc2O3, Y2O3 or La2O3) in amts. of 6-50 mole-%. Other oxides can be added in amts. of ca. 1 mole-%. Loosening of oxide particles in the tube is almost completely avoided and the quality of the drawn fibres, esp. their tensile strength, can be increasedconsiderably.
Patent DE-2931824-A1 (DE)
Title: Condenser for domestic linen dryer - using less coolant, has reservoirs of medium melting at slightly raised temp.
Inventor: BOCK HELMUT DIPL ING
IPC: D06F58/24
Filed: 1979-08-06
Abstract: Components of the housing enclosing the condenser, such as the walls, roof and end covers, in a domestic linen dryer, have cavities with heat contact which are filled with a medium such as phenol, paraffin and/or diphenylamine. These media are solid at room temp. (20 deg.C) but become fluid at 30-53 deg.C, necessitating a heat of fusion. The humidity picked up from the linen by the circulating air can thus be condensed efficiently without the need for large volumes of coolant from outside.
Patent DE-2938054-A1 (DE)
Title: Camera with handgrip and inbuilt electronic flash unit - installed at free end of pivoted handgrip to assume raised position in use
Inventor: ORT WOLFGANG DIPL ING
IPC: G03B15/03
Filed: 1979-09-20
Abstract: A pocket camera with a folding handgrip and an integral electronic flash unit has a moulded cover (2) hinged on the camera case with a sliding joint. One end of the cover has the flash unit (3) while the other end serves as a hand grip in the extended position. The flash unit is held above the camera in the ready position. The folded camera has a flat, compact shape. The electric contacts between the flash unit and the camera comprise contact tracks (2b) on the inside of the cover which are contacted by sprung contacts on the outside of the camera body.
Patent DE-2940106-A1 (DE)
Title: Portable telephone test set - has integrated circuits and LEDS indicating line condition by flashing
Inventor: ZAEH WOLFGANG
IPC: H04M3/28
Filed: 1979-10-03
Abstract: A telephone linesman's test set is made rugged and convenient to use by employing integrated circuits with LEDs as indicators. A push-button dialling circuit with repeat dialling facility replaces the mechanical dial. A signal from this circuit is used to provide a 300Hz square wave line test signal, and is divided down and amplified to provide a calling signal. When testing a line, its condition is indicated on 3 LEDs by 1HZ flashing. Which LEDs flash and whether they are in synchronism shows if the line is open or short-circuited, connected to a capacitor or a supply, and which wire is positive. The test set can be used for calling a subscriber or for communicating with another test set over a dead line.
Patent DE-2945235-A1 (DE)
Inventor: PRADE ERNSTFRIED
IPC: B63H9/10
Filed: 1979-11-09
Abstract: 1. A foot loop on a windsurfing board, placed on such board in groups with other such loops or singly on the deck thereof, such loops being made up of a length of strap, joined at its two ends with the deck of the windsurfing board, characterized in that at least one end of the strap (12) is joined up with the surfing board (1) by a unit (5), which may be triggered for undoing and freeing the strap (12), forming the foot loop (2), and which on being done up may be self-locked in the done-up condition, and in that the force needed for triggering the unit (5) is adjustable.
Patent DE-2949550-A1 (DE)
Title: Monitoring for personal calorie intake - has pocket calculator linked to weighing scales to convert data for each item of food consumed
Inventor: KUPSCH EBERHARD DIPL ING
IPC: G06F19/00
Filed: 1979-12-10
Abstract: The electronic pocket calculator is used for adding calories of food consumed and subtracting calories expended by exercise over a 24 hour period. The calculator is linked to scales for weighing the food and entering the corresponding calories automatically. A pocket calculator (1) with a keyboard (2) and display (3) is linked to scales (4) which include a tray (6).
Patent DE-2950100-A1 (DE)
Title: Ester interchange catalysed by acid ion exchanger - with addn. of water to give quantitative yield
Inventor: KUMMER RUDOLF DIPL CHEM DR
IPC: C07C67/02
Filed: 1979-12-13
Abstract: In the prodn. of esters (I) of mono- or polybasic carboxylic acids by ester interchange, using acid ion exchanger as esterification catalyst, ester interchange is carried out in the presence of 0.01-10 wt.% water, w.r.t. the amt. of liquid phase in the reaction mixt. Practically quantitative yields of (I) are obtd. corresp. to an increase in yield of 10-40% age points. In an example, a homogeneous soln. of 348 g (2 mole) dimethyl adipate, 624 g (4.8 mole) 2-ethylhexan-1-ol and 4.8 g water (0.5 wt.% of the liquid phase) was heated 2 h under reflux in the presence of 10 g acid ion exchanger (sulphonated crosslinked polystyrene). Then the water and excess 2-ethylhexanol were distilled off at normal pressure and 65 deg.C for the first 4 h and then at 10 mbar and 80 deg.C. Di(2-ethylhex-l-yl) adipate was obtd. in 99.7% yield. If no water was added, the yield of ester was only 64.8%.
Patent DE-2952642-A1 (DE)
Title: Dry removal of harmful gases from refuse treatment - by hot reaction and filtering in granular filter bed
IPC: B01D53/34
Filed: 1979-12-28
Abstract: The hot dry purificn. of gases contg. harmful pollutants, esp. the exhaust gases from refuse pyrolysis plants, first treats the raw gas with reactive additives fed into a rotating ball mill. The gas leaving the mill and contg. both reacted and unreacted pollutants is transferred to a sorption reactor contg. a horizontal packed bed filter. Residual pollutants are reacted with the additive, and purified gas is withdrawn below the filter. When the filter resistance reaches a specific value or after a programmed time the filter is flushed by a reversed-flow harmless gas. During this flushing the bed is fluidised with a reciprocating rate leaving a suitably conditioned layer for the next purifying stage. Dust is removed at the reactor base. The appts. is also claimed. Filtering the gases while hot and dry avoids the need to cool them for filtering with fabrics.
Patent DE-3001360-A1 (DE)
Title: Rotary set square head for portable draughting board - has quadrant with internal teeth and indexing ratchet lever outside quadrant plane
Inventor: SCHIRMULY BERTHOLD
IPC: B43L13/08
Filed: 1980-01-16
Abstract: The compact rotary indexing head is intended for the ruler square assembly (11) of a portable small-size draughting board comprising a horizontally slidable carriage (10) with a quadrant (1) having spaces (14) between internal ratchet teeth (with 15 deg. spacing) for engagement by the tooth (5) of a latch lever (4) pivoted (7) to the square assembly (11). The latch lever pivots in a plane above or below that of the quadrant, which permits its pivot to be arranged such that the lever is tangential to the quadrant pitch circle when engaged. The lever is pref. arranged between a wall of the carriage (10) and the assembly (11) and has its tooth projecting into the plane of the quadrant.
Patent DE-3004605-A1 (DE)
Title: Valve play measurement for IC engine - comparing amplitude of sound signal conducted through engine component parts with reference
Inventor: BONE RAINER
IPC: F02B77/08
Filed: 1980-02-08
Abstract: The method of measuring valve play in an internal combustion engine does not involve mechanical elements but is carried out electronically. Rapid reliable measurements can be performed. The method is suitable for long term monitoring involving a display in the vehicle swerving when valve adjustment is necessary. A reference signal is established for correct valve condition. This is compared with a measured sound signal conducted through engine components during engine operation. The difference between the signals is used for the display. The reference signal is weighted for engine reduction rate before the comparison is made. The useful measurement signal is the amplitude of the conducted sound signal which is measured as a frequency spectrum from which given frequencies or bands are selected.
Patent DE-3008558-A1 (DE)
Title: Compact photocopier with toner dosing control - has toner reservoir inside process drum with scraper to limit dosing rate
Inventor: KNECHTEL WILHELM
IPC: G03G15/09
Filed: 1980-03-06
Abstract: A compact tabletop photocopier has the toner powder reservoir inside the process drum (4), with dosing holes around the drum near each edge. The flow of toner through the holes is limited by a ferromagnetic scraper blade (100) or wedge behind the holes (10). The toner is transferred to the developing roller (6) whose magnetic poles disperse the toner. The toner powder passes out of the holes in an even coating controlled by the scraper. It is collected on the top edge of the magnetic roller by a cowl which swirls the toner and spreads it over the magnetic roller for an even copy. The copies does not require a separate toner reservoir nor any complex dosing control.
Patent DE-3011076-A1 (DE)
Title: Compact ice roughening heated granulate supply device - has rotating heated tube opening onto square chamber with fuel supply
Inventor: UDERSTADT KURT
IPC: E01C19/20
Filed: 1980-03-20
Abstract: Sufficient heating is applied for particles to be congealed into a trough that is formed after setting them on a layer of ice, following short-term thawing of the adjacent area, in provision for roughening traffic-bearing surfaces, to combat smoothness in ice, as in 3002328. Here a container (3) for supply of material is sited above a tubular, rotatable, heatable device (5), which has an outlet on the outside of a square chamber (2) comprising the periphery of the container and a supply area for fuel (13), and the tubular heater. Heating can be by gas with burners (10) along the tube. This is compact enough to be carried on smaller vehicles, for clearing paths or yards.
Patent DE-3013604-A1 (DE)
Title: Transportable mast foot hinge mechanism - has hinge shell guide slot for screw parallel to hinge bolt
Inventor: EKLUND ERIK
IPC: H01Q1/08
Filed: 1980-04-09
Abstract: Assistance in erection, and facility in turning, are provided by a hingeing device at the bottom of a pref. transportable and telescopic mast, with a U-shaped holder (5) mounted on a spherical face (3) on a base plate (2). The centre hinge shell (6) on the holder has an elongated guide slit (8) for a screw (4). The length of this slit is double screw dia. on the shell's hinge surface. The line of the slit is parallel to that of the hinge bolt (10) providing swivelling mounting for the mast foot (a). This provides easy mounting and lowering for a mast bearing a light, radar screen, antenna or other appliance.
Patent DE-3013978-A1 (DE)
Title: Two=stroke IC engine forced air intake system - uses elongated hollow inlet valve on top of piston performing pumping action
Inventor: REED EWELL R
IPC: F02B75/02
Filed: 1980-04-11
Abstract: The intake and exhaust assemblies are for a forced air intake, reciprocating piston, IC engine. Alternate embodiments of the air intake valve assembly include a hollow tube defining the intake port with devices operatively coupling the tube and piston to respectively open and close the intake port in response to the reciprocation of the piston. The exhaust valve assembly includes an operatively interrelated valve stem, spring retainer, rocker arm, and camming assemblies for alternatingly opening and closing the exhaust port for predetermined time intervals.
Patent DE-3020948-A1 (DE)
Title: Drilling small-dia bore in solid metal - involves short drill with unequal cutting portions of specified geometry integral with hard metal shank
Inventor: HERTEL GUENTHER
IPC: B23B51/02
Filed: 1980-06-03
Abstract: The short drill is intended for drilling a bore in solid metal and comprises two, pref. hard-metal, cutting portions (3,4) of unequal length whose chip clearance faces extend approximately radially relative to the drill axis (7). Each portion (3,4) has forwardly converging end faces. (9) and (11) are the inner faces of the respective portions. They meet at an obtuse angle forming a cutting point. These two points are at the same radial distance from the axis (7) and nearer to this axis than to the periphery (19) of the drill. The longer portion (3) extends radially inward to or slightly beyond (as shown) the centre (7) whilst the shorter portion (4) does not extend as far as the centre. The portions (3,4) are preferably integral parts of the drill.
Patent DE-3025565-A1 (DE)
Title: Compressed bale straw burning installation - has bale disintegrating device in combustion chamber to ensure complete combustion
Inventor: BOLLMANN SEN HEINRICH
IPC: F23G5/033
Filed: 1980-07-05
Abstract: The compressed-bale-straw burning installation has a device inside the combustion chamber (9) engaging the bale (10) face to loosen an amount of straw corresponding to a certain heat quantity. Pref. this device is a rotatably-mounted rod (3) wound into a helix with pitch increasing from tip (1) to driven end. Alternatively, the pitch may be constant and a ring-sector shaped bar (2) may project near the tip, at a lesser pitch or perpendicularly to the helix axis, as a counter bearing for the bale. A crossbar at the driven end breaks up the combustion residue or ash.
Patent DE-3029349-A1 (DE)
Title: Boric acid prodn. from ulexite - by elevated temp. decomposition with sulphuric acid in specified amt. to separate calcium sulphate
Inventor: JANIK WERNER
IPC: C01B35/10
Filed: 1980-08-01
Abstract: Boric acid (I) prodn. from B-Na-Ca ore (ulexite) by decompsn. at elevated temp. is carried out with H2SO4 in an amt. corresp. to the stoichiometric amt. w.r.t. CaO and less than the stoichiometric amt. w.r.t. B2O3 in the ore. This gives a suspension with pH ca. 6 contg. the sepd. Ca sulphate (II) in a soln. of (I) and Na tetraborate (III). Contamination of (I) with Na sulphate is avoided and (I) is obtd. in the form of crystals of the required type and compsn.
Patent DE-3029407-A1 (DE)
Title: Battery-driven alarm clock for child - has motor driven figure playing cymbal on clock case housing two batteries
Inventor: CARL MICHAEL
IPC: G04B23/02
Filed: 1980-08-02
Abstract: The battery powered alarm clock (1) designed for a child has its alarm combined with a figure (2) which can represent a clown so as to also form an amusement device or toy. The clock case can represent a drum with a cymbal (18) attached by a spindle (19) on top, which is struck by sticks (17) attached to the ends of the arms (3) of the figure. The movement of the arms is controlled by an electric motor housed inside the figure, and the clock and figure are supported on a base with a hollow part at the rear, with a vertical section supporting the figure. Inside the hollow part are two batteries, supplying the clock mechanism and the motor independently.
Patent DE-3029920-A1 (DE)
Title: Afterburning air injection system vehicle IC engine - has filtered air preheated in pipe along manifold branch to metering valve
Inventor: URSZAN BELA
IPC: F01N3/30
Filed: 1980-08-07
Abstract: The exhaust manifold is for fuel-air mixture burning vehicle engines. It has one or more branches leading to a single or multi-passage exhaust-pipe connection stub. The combustion air is filtered. Along the outside of at least one branch runs a pipe through which filtered air is drawn and heated by the exhaust, before entering the stub passage via an externally-operable metering valve. Short pipes link individual valves where multiple passages are used. The pipe run may alternatively be inside the manifold branch.
Patent DE-3031471-A1 (DE)
Title: Hydrogen storage alloy - comprising titanium, manganese, vanadium, nickel, chromium and rare earth or calcium
Inventor: BERNAUER OTTO DIPL PHYS DR
IPC: C01B3/00
Filed: 1980-08-21
Abstract: The parent patent described a new hydrogen storage material consisting of an AB2 Lavesphase alloy of C14 structure and of formula. Ti(1-a)Zr(a)Mn(2-x)Cr(x-y) (VzNi(1-z))y. in which a is 0-0.3, x is 0.2-1.0, y is 0.2 to x, z is 0.6-0.9, the V:Ni ratio is 9:1 to 3:2 and the Ni is partially or wholly replaceable by Co and/or Au. In the present invention, part. of the Ti is replaced by a stronger oxygen gether, esp. La and/or other rare earth elements or Ca in amt. 1-5(esp. 2-5) atom %. Specifically claimed is an alloy of formula. Ti(1-a')La(a')Mn(2-x)Cr(x-y) (VzNi(1-z))y. in which a' is 0.01-0.05, x is 0.2-1, y is 0.2 to x and z is 0.5-0.9. The alloy matrix is more homogeneous so that the alloy has increased hydrogen absorption capacity and better plateau development in the pressure-concentrn. isotherms.
Patent DE-3033689-A1 (DE)
Title: Electrically heated roller - has heating mats between inner tube and outer roller mantle tube
IPC: D21F5/02
Filed: 1980-09-08
Abstract: A number of heating mats are distributed in the circular space between the inner tube and the roller mantle outer tube, butting against each other. Specifically cold conductor connections, ranging radially inwards at one roller end as the inner tube passes through, connect the heating mats to the current supply through a slip ring and brushes. Three heating mats are used round the circumference. End discs with projecting ring flanges hold the inner and outer tubes. The drive trunnion ranges from one end plate, and the connecting shaft to the slip ring projects from the other end plate. The inner tube and the outer tube are centred at the outer surfaces of the ring flanges and the ends of the ring flanges axially define the circular space between the tubes. Design gives an electrically heated roller which is brought rapidly to the required temp., with minimum energy loss. The heating elements can be exchanged easily, and the roller has a simple construction but can be used in heavy duty applications.
Patent DE-3036098-A1 (DE)
Title: On-board computer for vehicle - has components cooled by solar screening, by heat conduction and by ventilation
Inventor: NARDIN H PETER DIPL ING
IPC: H05K7/20
Filed: 1980-09-25
Abstract: The computer acquires, processes and displays data relating to the performance and functioning of various parts of the vehicle. The components are cooled. The components are grouped together on a board or in another manner (e.g. by encapsulation) and connected together thermally. A thermally insulating cover or radiation screen against direct or indirect sunlight is placed around the components or the unit into which they are grouped and excludes the entry of external heat. The board on which the components are mounted is connected by the thermal conductors to cooler parts of the vehicle. The components are also cooled by Ventilation.
Patent DE-3036149-A1 (DE)
Title: Electroacoustic transducer assembly - has two symmetrically positioned oscillators joined to ribbed membranes
Inventor: FALKENBERG WERNER
IPC: H04R7/12
Filed: 1980-09-08
Abstract: The membrane elements (2), rectangular in shape and stiffened lengthwise by grooves, are each joined at one of their ends (3) to a transducer oscillator respectively (1,1a). The free edges of the thin membrane (5,5a) are abutted to one another to form an obtuse angle at the centre, not greater than 160 degrees. The surfaces of the centre edges (5,5a) where the two membranes meet, are rounded off and joined by a flexible, elastic fixing. The rounding off of the edges allows them to move smoothly on one another when oscillations of large amplitude are produced. The driver system (1,1a) consists of magnetic pole pieces and magnetic bars joined to the membranes by a 'U' shaped silicon which also carries the current conductors. When both transducers (1,1a) produce oscillations, a movement of the membranes due to the sound pressure occurs, whose resultant direction is always vertical to the axis of symmetry (7) of the two oscillators (1,1a).