baber/WOPTO huggingface dataset:
Patent DE-2758193-A1 (DE)
Title: Electrophotographic copier paper charging system - having corona wire over screen for first charge and photosensitive screen for second charge
Inventor: SATO EIICHI
IPC: G03G15/05
Filed: 1977-12-27
Abstract: An electrophotographic copier has the copy paper supported on an electrically conductive surface which is connected to a voltage source. Above the paper extends a fine corona wire which is also connected to a voltage source. This is the positive side, and the negative side is connected to conductive surface underneath. The upper surface of the paper is then positively charged. Between the paper and the corona wire is a screen which can operate as a control grid for the charge on the paper. The grid is also connected to the first voltage source. For a second charge the paper is positioned under a light conducting element with a set of conductors across it forming a grid. This forms a pattern of regions having a polarity opposite to the first charge, over the paper.
Patent DE-2814125-A1 (DE)
Title: Eddy current measuring circuit - has memory which stores instantaneous impedance measurements for subsequent correction factor
Inventor: BECKER RAINER DIPL PHYS
IPC: G01N27/90
Filed: 1978-04-01
Abstract: A clock pulse generator coupled to a multiplexer, produces one or more DC voltages to control a v.c.i. This oscillator has a variable amplitude sine wave output which is fed to a number of eddy current probe coils for workpiece testing. Currents are induced in pick-up coils and fed to multiplier circuits, which are also supplied with constant amplitude sine and cosine outputs from the oscillator, to generate real and imaginary current components. The instantaneous measured impedances are stored in a memory circuit to provide a correction factor for subsequent measuarements.
Patent DE-2815059-A1 (DE)
Title: LV contact breaker with reduced metal vapour deposit - has contact surfaces of special material and cylindrical walls of other material to favour condensation on latter
Inventor: GEBAUER ECKEHARD DIPL ING
IPC: H01H33/66
Filed: 1978-04-07
Abstract: A l.v. contact breaker is such that the metal vapour normally produced in the gap between the two contacts is considerably reduced. The metal vapour is again deposited on the contact surface. The switching chamber is evacuated and the lifespan of the contact elements is considerably increased. The unit is incorporated in motor switching circuits etc. The two switch contacts (3, 4) are shaped and mesh in the conventional pot shape. The front sides of the two contact elements which actually engage are made from one type of material and the cylindrical walls (5, 6) of a different type of material to favour condensation on latter.
Patent DE-2820883-A1 (DE)
Title: Exterior mirror for motor vehicle - comprises mirror-backed glass in housing, with interposed plastics, moulded, foam packing, and elastic edge seal
Inventor: BERGMANN MICHAEL ING GRAD
IPC: B60R1/06
Filed: 1978-05-12
Abstract: Outside mirror for motor vehicles comprises a mirror-backed piece of glass firmly mounted in a casing. The space between the piece of glass and the casing is packed with a plastics, suitably a foam, that extends as far as the aperture into which the mounting arm of the casing is fitted. The plastic macking is a pre-shaped moulding whose measurements fit that of the space, as defined above. An elastic rim is interposed between the circumference of the mirror and the casing.
Patent DE-2829328-A1 (DE)
Title: Pulse shaper for carrier frequency generator - converts steep input pulses into narrow output pulses using transistor with series RC circuit shunting emitter resistor
Inventor: SONNTAG FRITZ DIPL ING
IPC: G06G7/184
Filed: 1978-07-04
Abstract: The pulse shaper produces symmetric pulses with high harmonic content and can be readily fabricated as an integrated circuit. A resistor (7) is connected in series with a capacitor (8) and the resulting series combination is connected in parallel with the emitter resistor (6) of an amplifying transistor. The transistor's base is connected via a second capacitor (1) to the input to which voltage pulses with steep edges are applied. The voltage pulses are symmetric. A trimmer capacitor (9) may be connected in parallel with the first capacitor. The resistors (5, 6, 7) bear given relationships to one another. The pulses may be used to produce carrier or pilot frequencies by frequency multiplication.
Patent DE-2832809-A1 (DE)
Inventor: TATSUMI TOSHIO
IPC: G04G5/00
Filed: 1978-07-26
Abstract: A ceramic trimmer capacitor comprising a cylindrical casing, a stator and a rotor comprising a rotor casing and a dielectric assembly consisting of a disk-shaped ceramic dielectric member, a semicircular dielectric layer formed upon the upper surface of the dielectric member and having a low dielectric constant less than 20 and a coefficient of thermal expansion substantially equal to the dielectric member and a rotor electrode formed on the whole surface of the dielectric member including the semicircular dielectric layer, the dielectric assembly being inserted into the rotor casing and electrically and mechanically connected thereto; the stator and the rotor being placed in the cylindrical casing and resiliently supported. Stray capacitance is almost negligible; the variable capacitance range may be considerably improved; and the mechanical strength may be increased. The ceramic trimmer capacitor is especially adapted to be used in an electronic watch.
Patent DE-2839572-A1 (DE)
Title: Vehicle electric motor switch in central locking system - has stationary bridge contact, mounted on bearing pin for safety lever, carrying further three interacting contacts
Inventor: COLELL HANS
IPC: E05B77/48
Filed: 1978-09-12
Abstract: The switch (10) is allocated to a door lock (1), and consists of a bridge contact (11) and contacts (12114) interacting with it. The bridge contact (11) is stationary, mounted on a bearing pin (9) for safety lever (3), while the contacts (12-14) are mounted on the rotatable safety lever (3). The contact elements (12, 13, 14) are built up from plugs (24), which are set, damped by film, in the housing (19).
Patent DE-2842404-A1 (DE)
Title: Tooth gap cleaning instrument for removing food particles - has cleaning thread held taut between spring arms of stirrup including hand grip
Inventor: DOLINSKY JOSEF DR
IPC: A61C15/04
Filed: 1978-09-29
Abstract: The instrument removes remnants of food from the gaps between teeth, and comprises a stirrup-shaped frame (10) with two arms (14, 16). The arms have spring ends, a thread or strip-shaped cleaning tool (24) being held taut between them. The tool can be a silk thread or a wire, and there can be slots (20) in the arm ends for insertion of the tool, which has thickened portions (26) at the ends. These slots extend from the arm end edges (18) and end a short distance from them.
Patent DE-2855014-A1 (DE)
Inventor: SCHNEIDER HORST
IPC: B21D3/05
Filed: 1978-12-20
Abstract: A machine for straightening elongated workpieces comprises a plurality of straightening rolls mounted one after the other to opposite sides of a workpiece to be straightened, substantially in a plane and turnable about axes normal to the direction of movement to the workpiece through the machine. At least the first three straightening rolls are mounted for rotation about their axes on a C-shaped support frame so that the workpiece may be introduced between the same from the open side of the C-shaped support frame. Lateral elements for centralizing the workpiece are coordinated with the first three straightening rolls. The second straightening roll and the centralizing elements coordinated therewith are movable in the aforementioned plane in a direction away from the first and the third roll through a large stroke accomplished by a quick adjusting mechanism, and to further facilitate lateral introduction of a workpiece from the open side of a C-shaped machine frame between the first three rolls, the centralizing element at this one side of the second roll can be tilted preferably about an axis parallel to that of the second roll in upward direction. The first three rolls and the elements cooperating therewith are preferably constructed as an independent machine unit.
Patent DE-2906487-A1 (DE)
Title: Support fitting for pipeline - has sockets by which fittings can be assembled together and flat base to allow pipeline to slide
IPC: F16L7/00
Filed: 1979-02-20
Abstract: A support fitting (1) is designed to carry a pipeline, so that it can be slid into an outer protective tunnel. It consists essentially of a small (2) and a large (3) socket, joined by a baseplate (4). The latter closes off the underside of the small socket (2), but leaves the large socket (3) open. One fitting (1) can thus be assembled with another by inserting the small socket (2) into the large one (3). A fixing strap, to hold the pipeline in place, can be slid th rough slots (6) in the base of both sockets (2, 3).
Patent DE-2906560-A1 (DE)
Title: Toilet pan inner bag - keeps pan clean, and is made of soluble or deformable material, with attachments and reinforcements to fit pan
Inventor: KLEINERMANNS HUBERT
IPC: A47K13/16
Filed: 1979-02-21
Abstract: The inner bag for placing inside a toilet pan is designed to prevent the inside of the pan from being dirtied. The inner bag is made of material which dissolves, deforms or rinses away in water, and can be in any shape to fit the inside of the pan. The bag has one or more openings to enable the water for flushing the pan to enter end it is made entirely or partly of material which is perforated and/or is permeable to water. The bag has attachments for attaching it to the pan, and has reinforcements at suitable spots. The bag may entirely or partly overlap over the edge of the toilet seat.
Patent DE-2908859-A1 (DE)
Title: Piston engine combustion chamber - has auxiliary portion lined with ceramic insulating material
Inventor: BRANDSTETTER WALTER DIPL ING D
IPC: F02B19/00
Filed: 1979-03-07
Abstract: The combustion chamber is for a piston engine, there being a main portion between piston and cylinder head and an auxiliary one formed in the latter and connected by a passage to the main one. The auxiliary chamber (2) at least is lined with ceramic insulating material (6a, 6b), whose thickness is determined by a formula based on its coefficient of heat conductivity. At the connecting passage the lining thickness can be 20 - 30%  elsewhere.
Patent DE-2914475-A1 (DE)
Title: Building air and smoke vent - has frame with Z=section side walls, whose upper flanges slope inwards and downwards
Inventor: HOSP EBERHARD
IPC: F24F7/02
Filed: 1979-04-10
Abstract: The air, heat and smoke venting service has a sheet metal base frame fitted over a rectangular roof opening, with a hinged vent flap. A further cover, opening automatically in the event of excessive smoke of heat, is hinged to the flap. The base frame (1) has a Z-section side walls, whose upper flanges extend inwards and slope towards the roof at an angle of roughly 15 deg.. A sheet metal tilting frame (2) fits into the flanges, preferably with a seal in between and is hinged on the frame at the side nearest the roof ridge. It can be opened by a cylinder etc. into a position, where it is inclined at roughly 5 deg. in the same direction as the complete unit.
Patent DE-2918565-A1 (DE)
Title: Oil fired or gas fired boiler - returns recirculated combustion gases to flames via cylinder on outside and inside
Inventor: ROSEL VALENTIN
IPC: F24H9/18
Filed: 1979-05-09
Abstract: The oil- or gas-fired boiler has a return cylinder (1) forming inner and outer smoke passages. The combustion gases are returned along the outside, and then passed forward on the inside again in the direction of the flames. There may be a combustion gas injector (4), forming in conjunction with a glow cylinder (4a) an ejector transporting the gas back into the combustion chamber again. There may be an insulating brick (2) closing the rear end of the combustion chamber, and with a refractory glow surface (3) for after-burning of unburnt particles of oil.
Patent DE-2919081-A1 (DE)
Inventor: KISSLING RENE
IPC: H01H37/12
Filed: 1979-05-11
Abstract: An electrical switch (1) having a tilting spring (2), operated by a membrane (5), has a moving contact (3) and a stationary contact (4). An adjusting threaded bolt (8) is used as the setting transmitter, and a shaft (15), which is parallel thereto, is locked to the disc (10) and has a cam (16) which can be pivoted under the moving contact (3) by rotating the shaft (15). This reduces the switching movement of the contact (3) and changes the function of the switch (1) from being a temperature limiter to being a temperature monitor. A leaf spring (21) having lugs (22) which snap into holes (23, 24) fixes the position, once it has been selected, irreversibly. In the region of the disc (10), the shaft (15) has a thickened region (17) with a recess (18) which, together with at least one cut-out in the disc (10), forms the lock. A latching spring (14) permits only one irreversible adjustment of the disc (10). <IMAGE>
Patent DE-2919283-A1 (DE)
Title: Dermatological steam ozone appliance - with steam dome and reheated pipe to steam nozzle eliminating condensation burns
Inventor: BAER HUGO
IPC: A61H33/06
Filed: 1979-05-12
Abstract: In a cosmetic appliance for a dermatological treatment by a jet of steam and ozone, the steam pipe terminates in a steam dome, and a smaller-dia. steam pipe is passed from the dome across the steam pipe to a nozzle to produce a steam jet. All these parts lie inside an ozone chamber and the steam jet is directed on a mixing nozzle where it is mixed with ozone. The provision of a steam dome and the passage of the small-dia. pipe to the steam nozzle across the live steam eliminates any condensate particles which could be ejected and cause burns on the skin.
Patent DE-2923897-A1 (DE)
Title: Electronic watch circuit - ensures stepwise change of pulse width fed to motor using detector and corrective network
Inventor: SHIDA MASAHARU
IPC: G04C3/14
Filed: 1979-06-13
Abstract: The elimination of temperature effect on the battery driving the electronic watch ensuring a reduced power intake is achieved by minimising the drive pulse width. The pulses fed to the stepping motor of the watch are reduced or increased starting with a minimum duration pulse. The combination and detection circuits trigger the corrective pulse feed when the count indicates a shift with respect to a standard time signal position. The insufficient pulse width for driving the stepping motor is reflected in its inability to turn. Flux variations in stator constriction areas due to the passage of rotor projections are monitored for activating the circuit which changes the pulse width for maintaining synchronism with the crystal oscillator pulses.
Patent DE-2932292-A1 (DE)
Title: Weld seam testing device guiding system - uses magnetic trace as marking for contactless scanning by magnetic field sensitive scanner
Inventor: HILDEBRANDT HEINER ING GRAD
IPC: B23Q35/13
Filed: 1979-08-09
Abstract: The testing is carried out by contactless scanning of suitable marks, associated with the welded seams to be tested, the marks being provided on or parallel to the tested seam. A magnetic trace is used as the scanning mark, being provided by magnetisation of the welded material. This trace is scanned by at least one probe, sensitive to magnetic field. Pref. the magnetisation of the welded material is carried out by a magnetic field generating member with poles transverse to the desired magnetic trace, the member being moved over the welded material. The probe may scan the trace along a centre line between induced north and south poles. If two probes are used, they have a constant spacing and scan the trace along their edge lines. Both the probe(s) and the testing device are so arranged that the probe position change causes a corresponding position change of the entire testing device.
Patent DE-2934627-A1 (DE)
Title: Heat recovery house chimney accessory - comprises shutter flap flue controlled by burner flame or flue gases
IPC: F23L11/00
Filed: 1979-08-28
Abstract: The chimney accessory comprises one or more shutters mounted in the flue (12). These are controlled by the burner flame and/or the flow of flue gases in the chimney, setting them in any position between the fully open and fully shut ones. Adjusting movement of the shutter can be effected via a time delay, and it can be movable into the shut, open and half-open positions, as it is secured to a shaft (9) working in bearings in a frame. The shutter rotation can be by a motor, magnets etc., and it can be spring-biased into open position.
Patent DE-2935603-A1 (DE)
Title: Injection moulding tennis balls - with partly vulcanised hemispheres pressed together after removing core tool and replacing with air
Inventor: MUELLER DIETER DR ING
IPC: B29C45/00
Filed: 1979-09-04
Abstract: Hollow mouldings of rubber and similar, and tennis balls in particular, are produced by injection moulding sections (hemispheres in particular) and vulcanising them together. The hemispheres are vulcanised through to an extremely thin skin at the edges to be joined, the latter are then pressed together and vulcanised. Method gives perfect mouldings.
Patent DE-2936499-A1 (DE)
Title: Housing for printed circuit boards - has guide ribs and adaptor walls for accepting boards of various dimensions
Inventor: EISINGER EMIL
IPC: H05K7/14
Filed: 1979-09-10
Abstract: The circuit housing is basically rectangle and has guide ribs (7) arranged in pairs at the side walls (3), between which, in a vertical direction to the base, circuit boards can be slotted in and held firmly. In addition, wider, bracket shaped-guide ribs (9) are formed on the inner surface of the side walls (3), having moulded nuts for fixing the cover. For guiding and retaining circuit boards (6), adaptor walls (10) are fixed to the side walls (3),having two support ribs (11) running parallel to the guide ribs (9), and guide grooves (12) for easy introduction of the board (6). The housing is able to accept circuit boards of various dimensions, without being complicated in construction, and is cost saving to produce.
Patent DE-2938663-A1 (DE)
Title: Relief valve for hydraulic pump - has discharge and relief openings controlled together to allow adjustment of working pressure
IPC: F04B49/24
Filed: 1979-09-25
Abstract: The valve has an inlet stub (3) from the pump (13). The stub leads into an enlarged bore (4) which has one side opening (5) to the using equipment (14) and another side opening (7) to the relief return (16). The side openings are displaced axially from each other. A cylinder (10) within the enlarged bore (4) is pressed by a spring (12) against the inlet (3). It closes the equipment outlet and leaves the relief outlet clear. When the equipment valve (15) is opened, the pressure on the outside of the cylinder drops and the pressure difference across its flange (11) raises it to open the equipment opening and close the relief opening.
Patent DE-2946138-A1 (DE)
Title: Fuse with temp. operated cut=out - has cap containing heat sensitive contact, forming parallel path to main fuse contacts
Inventor: HOLLMANN FRITZ
IPC: H01H85/02
Filed: 1979-11-15
Abstract: The combined temperature dependent cut-out and fuse has a housing (1) for the fuse elements and a cap (13) mounted on the side, forming the cut-out. The housing has a sand filled chamber (5) with fuse elements (6) between the contact blades (3,4). In parallel with these elements, which are joined by solder (8), are two other elements (7) with a gap between them, with extensions (10) for the safety cut-out. These extensions project through the housing and are attached to a solder strip (16) inside the cap, which melts to release them at a given temperature. The cap is then moved away from contact by springs (14,15).
Patent DE-2949535-A1 (DE)
Title: Easily ignitable diesel fuels - contg. diesel oil cut, methanol, and higher alcohol(s) as solvents
Inventor: OPPENLAENDER KNUT DIPL CHEM DR
IPC: C10L1/02
Filed: 1979-12-08
Abstract: Diesel fuels consist of (a) a petroleum middle distillate, suitable on its own as a diesel fuel (pref. at least 60 vol.%), (b) a smaller concn. of methanol (pref. 10-25 vol.%), and (c) aliphatic 6-20C (9-11C) alcohols, opt. etherified (pref. 5-15% of an alcohol liquid at ambient temp.). Component (c) acts as solvent for (a) and (b). The fuels make it possible to use in diesel engines at least some methanol (which can be made through synthesis gas from non-oil sources. The addn. of C gives homogeneous mixts. of relatively good ignitability.
Patent DE-3001106-A1 (DE)
Title: Machine for erecting cardboard boxes from blanks - has reciprocating rod with box formers at both ends to erect two blanks per cycle
Inventor: LEONHARD HEINRICH
IPC: B31B50/00
Filed: 1980-01-14
Abstract: The mechanism (1) is intended for erecting, and possibly applying adhesive to cardboard blanks (5) supplied one by one from a magazine (4) to a box former (16) on an axially reciprocating rod (17) which erects a blank and ejects it. A second magazine (10), possibly with adhesive applicator (12), is provided to supply other blanks (11,11a) to a former (18) provided at the opposite end of the reciprocating rod. Thus another blank is erected and ejected by the return stroke of the reciprocating rod. The latter may be moved to and fro by a swivel lever (19), which may be driven by a crank (21,23) or a cam. One former may erect the bottom and the other one the lid of the box.
Patent DE-3007035-A1 (DE)
Title: Waste water storage basin outflow control - involves superimposed choke screen and float spindle hinged to activating rod
Inventor: GIEHL KLAUS-ULRICH DIPL ING
IPC: E03F5/10
Filed: 1980-02-26
Abstract: The system is used for regulating liq. discharges and avoiding wide fluctuations in flow from storage basins or tanks. A choke shutter and float spindle are set up one above the other, with their axes of rotation (3',8') at a defined interval. The spindle is divided into two sections, the end of one providing connection with a float (9), and the end of the other with an activating rod (4). The other rod end is hinged to the shutter, so that this does not cover the outflow opening (2) when the float is at its lowest, but covers a defined part of it when the float is higher. One or more shutters may be fitted for introduction into a choke sector, as required, the first shutter contour being pref. attuned to coordinates of a control or coordinating system.
Patent DE-3011886-A1 (DE)
Title: Polluted air washer esp. for laboratories and small plants - has air bubbling upward through vessel into packed column
Inventor: GLASS REINHARD
IPC: B01D53/18
Filed: 1980-03-27
Abstract: A vertical washer for purifying air discharged esp. from small works or laboratories operates in parallel flow, with increasing absorption of impurities as the air flows upwards. The incoming, contaminated air enters under pressure into a wash vessel, where there is a mounting below the liquid surface for a filler unit, which is itself therefore partially immersed in the washing water. In operation, the wash liquid is bubbled up and blown by the air into the higher part of the filler unit. Preferably, the upper part of the filler unit acts as a droplet separator. Preferably also, the filler unit rests on a perforated plate which supports it and distributes the incoming air. For laboratories, chemical and industrial small plants with air throughputs of up to1,000 m3 per hour. The apparatus requires no moving parts or control or metering equipment.