baber/WOPTO huggingface dataset:
Patent DE-2743815-A1 (DE)
Title: Resistance measurement of telephone meters - applying chopped voltage and rectifying so that part coinciding with generator pulses is suppressed
Inventor: WALSCHLEB RUDOLF ING GRAD
IPC: G01R31/02
Filed: 1977-09-29
Abstract: The telephone meter is earthed at one end, connected to a communication line at the other and has inductances and capacitances, and measurement is made by an ohmmeter. The measurement voltage is a chopped d.c. voltage applied to the meter (11) through resistors (8/1, 8/2) at the non-earthed end. Rectifier (12/1, 12/2) converts the voltage into a d.c. voltage corresp. to the measured value. The rectifier is followed by a logic circuit (13/1, 13/2) controlling a rectangular voltage generator at a frequency twice that of the chopped d.c. voltage. Pulse edges correspond to the edges of the chopped voltage, and parts of the d.c. voltage corresp. to the measured value coinciding with the pulses of the rectangular voltage are suppressed.
Patent DE-2747950-A1 (DE)
Title: Heat insulated concrete building block - has concrete external slab with spacer bars passing through porous insulating panel into plasterboard
Inventor: ENEA LIVIU DIPL ING
IPC: E04C2/34
Filed: 1977-10-26
Abstract: The building block includes a rectangular external slab of watertight concrete (2), together with a series of spacer bars (6) aligned vertically to it and concreted into it at one end. These pass through a porous heat-insulating panel (5) fitting directly against the slab's inside surface. The other ends of the bars are firmly bonded into a rectangular internal plaster-board panel (7).
Patent DE-2752060-A1 (DE)
Title: Asymmetric cable short circuit monitor - has magnetic circuit of several circular etc. sheet metal magnetic screens, and reed contacts in screen air gaps
IPC: G01R31/02
Filed: 1977-11-22
Abstract: The monitoring converter has a digital output and a magnetic circuit surrounding the polyphase cable. The magnetic circuit consists of annular, or omega-shaped, concentric screens of magnetic sheet metal, forming a coaxial cylinder round the monitored cable along 2/3 to 3/4 of its periphery. In the air gap(s) between the screens, at different radial distance from the cable axis, is fitted a chain of parallel-connected reed contacts, surrounding with negligible spacing the cable. These contacts are coupled to a bipolar terminal for connection to an appropriate instrument.
Patent DE-2757229-A1 (DE)
Inventor: CZEIKE MANFRED DIPL KFM
IPC: E04B1/74
Filed: 1977-12-22
Abstract: Both the footstep-sound insulation and the heat insulation of a floor covering can be improved by covering both sides of a slab, consisting of rubber granules, by means of compact layers of rubber or plastic.
Patent DE-2759265-A1 (DE)
Title: Gas blast circuit breaker - has tubular blast members enclosing fixed and moving contacts with insulated ends forming jets
Inventor: ZUECKLER KARL DR RER NAT
IPC: H01H33/70
Filed: 1977-12-30
Abstract: The gas glast circuit breaker arrangement has a insulated chamber (1) filled with gas under pressure. Inside are fixed (10) and moving (9) contacts enclosed by upper (3) and lower (4) jet tubes, respectively, with a gap (T) between them with a bridging piece (7) across the gap, protected by a moving blast cylinder (14) and a fixed piston (13). The fixed jet tubes (3, 4) have extensions (6) made of insulating material of cylindrical shape which curves at the discharge end to form the jet. They may incorporate p.t.f.e. in part at least.
Patent DE-2801832-A1 (DE)
Title: Power generator utilising solar energy - has reservoir of hot air heated by solar collector and used to drive hot air turbine
Inventor: BIESTERFELDT HARALD
IPC: F03G6/04
Filed: 1978-01-17
Abstract: A solar energy collector is mounted on a baseplate of material having a high thermal capacity. The energy absorbed serves to heat the baseplate. There is a cylindrical vessel attached to the baseplate through which air can flow. The air is heated by the baseplate and rises by natural convection to a turbine rotor mounted at a suitable height above the cylinder. The hot air leaves the turbine and is replaced by fresh cold air drawn in through holes in the base of the vessel on the baseplate. The turbine drives an electrical generator or any other machine.
Patent DE-2804134-A1 (DE)
Title: Telecine flying spot scanner - has beam splitting prism to produce two optical images for interlaced scanning (NL 2.8.78)
Inventor: FAVREAU MICHEL
IPC: H04N3/36
Filed: 1978-01-31
Abstract: The flying spot scanner for telecine applications has an optical system for producing two images of the film. A film moves (9) in the direction indicated by the arrow (10). Further arrows (7, 8) indicate the direction and amplitude of scanning of the film in adjacent frames. A shutter (5) moves in the direction of the arrow (15) in synchronism with the flying spot. An objective (6) form an image of the film which is directed on to the pickup screen (1) by an arrangement of three prisms (2-4). A half-silvered mirror (13) splits the beam into two.
Patent DE-2809543-A1 (DE)
Title: Rendering oil or gas well gases harmless - by desulphurisation and oxidn. in catalytic reactors
Inventor: HENKE WERNER
IPC: E21B41/00
Filed: 1978-03-06
Abstract: Gases containing hydrocarbons and sulphur compounds escaping during gas and oil wel drilling are rendered harmless by feeding in turn through a water and particulate separator, a desulphurization reactor having a preheater, a second water and particulate separator and a catalytic oxidation reactor. Sudden surges of gas are fed to a burn-off stack vai a cyclone separator. Dangerous explosive and toxic gases are rendered harmless by the appts.
Patent DE-2811973-A1 (DE)
Title: Work clamping disc for gear grinding machine - has sliding key which matches cut=out in disc for locking at each indexed position
Inventor: KOWNATZKI GUENTER
IPC: B23F23/08
Filed: 1978-03-18
Abstract: The gear grinding machine has a workpiece indexing device driven through a gear train from an electric motor and a clamping disc (3) is mounted on the motor shaft. The clamping disc has a cut-out (6) on its periphery with one end surface (7) lying on a radius (R) and the other end surface (8) perpendicular to the first surface (7). A clamping key (4) can be moved by screwed adjusters (12), (13) along a guide bar (14). The key has a vertical surface (9) and a horizontal surface (10) which engages the surfaces of the disc to prevent rotation in either direction.
Patent DE-2816907-A1 (DE)
Title: Cooling system for transformers and motors in mines - has easily-replaceable helical cooling tube inside pressure-resistant steel casing
Inventor: HEMKEMEYER BERNHARD
IPC: H01F27/08
Filed: 1978-04-19
Abstract: The cooling system has a pressure-resistant smooth steel casing with an easily-replaced helical cooling tube inside it and a reinforcing rail for fixing to the transformer or motor. The casing is cylindrical and has a reinforcing ring at each end to which a circular closure plate is fixed. The helical cooling tube is made of Ni-Cr steel. The tube connections and overpressure valve are located in the protected area on the outside of the casing occupied by the lifting lugs. A temp. detector disconnects the current supply from the transformer or motor when the winding temp. exceeds a given max. The cooling system is unaffected by contaminants (dirt) and reduces the heat released to the environment considerably. The power of the transformer or motor can be increased by roughly 25%.
Patent DE-2818793-A1 (DE)
Title: Waterway bottom filter matting - has hollow zones in lower roughened layer of matting
Inventor: GOESSLING ERNST-GUENTHER
IPC: E02B3/12
Filed: 1978-04-28
Abstract: The construction of a filter matting for lining the bottoms of canals, and other waterways, has one roughened surface with open hollow zones towards the bottom. The design gives the matting a longer life as it withstands the counter movements experienced between the roughened surface of the filter matting and the bottom of the canal. The roughened layer of the matting has a sufficiently dense structure to prevent base shifts from hollow zone to hollow zone. the hollow zones are constructed so that they are in the form of open recesses in the under surface of the matting, or by strips running across the fall of the slope. The end surface of the strips in the direction of the fall of the slope are the same size or larger than the open ends of the hollow zones ranging in the same direction of neighbouring filter matting sections, so that they can be covered. When the dimensions of the strips match the hollow zones, projecting strips can be used to engage into the zones to lock filter matting sections together.
Patent DE-2821645-A1 (DE)
Title: Piston for internal combustion engine - has thrust pad under crown to transmit force directly to connecting rod
Inventor: HILPERT PAUL
IPC: F16J1/14
Filed: 1978-05-18
Abstract: The piston has a skirt (1) and a crown (2). The connecting rod (7) is attached to a gudgeon pin (3) which runs across the space inside the piston between two sides of the skirt. A thrust piece (9) within the space inside the piston is tight to the bottom of the crown and to the connecting rod (7). Its lower end is profiled to allow the connecting rod to oscillate without losing contact with the thrust piece. The driving force on the crown is transmitted to the connecting rod through the thrust piece and not through the skirt and gudgeon pin. This reduces stresses in the skirt and enables it to be thinner.
Patent DE-2822794-A1 (DE)
Title: Linear displacement transducer for strain gauge applications - has meander-type pick=up and transformer coils to detect relative movement
Inventor: PODBORONOV BORIS PETROVITSCH
IPC: G01D5/20
Filed: 1978-05-24
Abstract: The linear transducer is esp. suitable for use with strain gauges and is designed to improve the measurement of small displacements at high temps. and under vibration conditions. It comprises a pick-up winding (1) whose turns are wound around a lower former, and two transformer windings (2, 3) wound on an upper former, these windings being in the shape of zig-zags. The side windings (1, 2, 3) are essentially at right-angles to the main coil (4) so that the inductive coupling between the auxiliary sections (6) of the individual coils is minimal. The ends of the pick-up winding (9) and those of the transformer windings (8) are on opposite faces of the transducer. The output signal from the transducer is practically linear in relation to displacement.
Patent DE-2826240-A1 (DE)
Title: Household equipment display to indicate service required - has electrolyte which triggers display plate after predetermined period indicating service needed
Inventor: GRAMLICH WALTER
IPC: G07C3/02
Filed: 1978-06-15
Abstract: An electrolytic display element is used to indicate when a service is due on household equipment, such as a ventilation unit, washing machine etc. A cathode (6) and anode (8) sandwich an electrolytic element (7). The cathode and anode are coupled into the electrical circuit of the equipment and eventually current breakdown occurs at a point (14). A reactant plate (9) is activated to give a display that service, such as a change of filter, is required.
Patent DE-2835030-A1 (DE)
Title: Dry chemisorption for flue gas purificn. - to remove sulphur di:oxide, nitrogen oxide and hydrogen halide, uses granular catalyst with dust filter sheath
Inventor: HOELTER HEINZ ING GRAD
IPC: B01D53/34
Filed: 1978-08-10
Abstract: Dry chemisorption, pref. of SO2, NOx, HC1 and HF from flue gases after energy conversion plants with catalyst involves (1) pref. freeing the hot gas from dust without cooling; (2) contacting with a catalyst (I) and then with additives e.g. ground limestone or hydrated lime, to convert harmful constituents to useful materials, mainly CaSO4 (CaS34.2H2O) which are removed in a dry filter, and then discharging the gas at the required temp. through the chimney. (I) is encapsulated in a filter sheath to protect it from dust and kept free from dust and hence always highly active by shaking and/or pressure shock cleaning. It consists of granular Gp. II-IV metal oxides. End prod. can be used in the plaster and cement industries. The activity of the catalyst is maintained for long periods.
Patent DE-2836088-A1 (DE)
Title: Removing aluminium from crushed recycled glass - by treatment with caustic soda lye to form sodium aluminate
Inventor: SCHUMACHER LEO DIPL ING
IPC: B03B9/06
Filed: 1978-08-17
Abstract: A bunker contg. the scrap crushed glass is pref. filled with the lye for a prescribed time, followed by pumping the lye out of the bunker and feeding it into another bunker also contg. scrap glass. Air is pref. then fed through the bunkers to remove the H2 formed by dissolving the Al in the NaOH. Prior to treating the scrap glass with lye, the coarse fraction of the glass over 25 mm is pref. removed, thereby physically removing e.g. 90% of the Al in the glass. The NaOH contg. sodium aluminate is pref. employed as a constituent in glass mfr.
Patent DE-2902764-A1 (DE)
Title: Presence controlled electronic urinal fitting - has radiation transmitter and receiver and uses signal generator operating on radar principle
Inventor: BUESCHING HORST ING GRAD
IPC: E03D13/00
Filed: 1979-01-25
Abstract: The sanitary fitting, pref. for a urinal, control is actuated by the presence of a user. It has a signal generator containing a radiation transmitter and receiver. This signal generator operates on the radar principle. Pref. the signal generator is designed for a maximum output of 1 mW for a dipole having a half wave length. As compared with the conventional devices of such a nature, the electronic fitting control element has the advantage that the generator, operating on a radar principle, can be mounted behind the usual ceramic tiles or other constructional elements usually lining the urinal walls. Its power rating has proved sufficient for the desired application which, in addition to low cost, also prevents any interference to radio communications or television.
Patent DE-2903205-A1 (DE)
Title: Sand area cleaning appliance - has collector, sieve assembly, disinfecting unit, ejector and duct linked waste container
Inventor: JESSL PETER ING GRAD
IPC: E01H12/00
Filed: 1979-01-27
Abstract: The mobile, and stationary, device is used for cleaning beaches, children's play areas, and other natural or artificial stretches of sand. Dirty sand is conveyed to a movable set of sieves (5) through a sand pickup device (3, 4). Below the sieves there is a disenfecting unit (8), with sand ejector (9). A waste container (7) is sited near the sieves, below their level, linked to them by side ducts (6). Vacuum may be generated in the waste container. This enables large or small sand surfaces to be cleansed of waste matter and unhygienic substances, with min. labour or time involved.
Patent DE-2904764-A1 (DE)
Title: Two=stage ceramic item press - has separate devices for first and second pressing stages also aiding other operations
Inventor: WALCHHUTTER ULRICH
IPC: B30B11/02
Filed: 1979-02-08
Abstract: The press is for ceramic or similar items, using powder as the material, two press operations being necessary. It has separate devices forthe first phase and the second press operation, these being combined with others to provide conditions for suppression of movement, initial expulsion of air and an intermediate phase. Pistons(5, 5') can be used for the first phase, and combined with the weight of a support(3) for the second, while for the third these pistons and the support weight are combined with other pistons. For the fourth phase, the first pistons(5, 5') and support(3) are used, less the force of the pistons. The final compression phase is effected by a screw(7') with flywheel(7").
Patent DE-2905902-A1 (DE)
Title: Deflector circuit with amplifier for Braun tube - has limit of excitation region lower than that of deflection coil and uses additional voltage during high current change velocities
Inventor: MEYER KLAUS DIPL ING
IPC: H03K4/69
Filed: 1979-02-16
Abstract: The deflection circuit is pref. used for the display of a radar system, but is also applicable to t.v. and Braun tube. It contains an amplifier (2) with a series connected deflection coil (1) of the tube. The amplifier output voltage does not exceeds its supply d.c. voltage, without exceeding a limit of its excitation region. This limit is of lower rating than the deflection coil voltage appearing at the highest possible current change velocity to be controlled. At least during the period of the high current change velocities an additional voltage can be series connected to the deflection coil for the latter voltage compensation in such manner that the uncompensated residue remains within the excitation region. Pref. the amplifier has ahigh natural output resistance within its excitation region due to its design. D.C. voltage transformer (U') may be used for series connection of the additional voltage, whose secondary winding (6) is in series with the deflection coil.
Patent DE-2914458-A1 (DE)
Title: Alkyl-sulphamido-carboxylic acid(s) as cement additives - giving rapid hydration of the binder e.g. in mineral fibre reinforced prods.
Inventor: WUESTEFELD BERND DR
IPC: C04B24/16
Filed: 1979-04-10
Abstract: Cement-bound articles are made from a mixt. of cement, additives and water, with the addn. of 0.5-1 wt.% (w.r.t. cement) of an alkylsulphamidocarboxylic acid (I) or water-soluble salt of this to the mixt. Pref. (I) has 8-18C (esp. 12C) in the alkyl chain and is neutralized with a lithium base. The (I) are useful additives in cement based materials such as concrete and (esp.) mineral fibre reinforced cement prods., and allow the use of cement with a finer particle size than was previously possible, without affecting the hydration process.
Patent DE-2916551-A1 (DE)
Title: Automatic proportional mixer for water and beverage concentrate - has aspirator connected to water supply for drawing concentrate into water flowing through aspirator
Inventor: CLELAND ROBERT K
IPC: B67D1/00
Filed: 1979-04-24
Abstract: Automatic proportional mixer for intermittently delivering vols. of water mixed with proportional vols. of liq. additive comprises an aspirator connected to a water supply and to a liq. additive delivery pipe. A metering valve adjusts the pressure established in the aspirator by the water and so controls the vol. of additive delivered to the aspirator for admixture with the water. The water/liq. additive mixt. is discharged from the aspirator through a discharge conduit. Mixing water with liq. beverage concentrate for supply to non-carbonated beverage dispensing machines. Small vols. of water and additive can be mixed and supplied at frequent intervals as required.
Patent DE-2918662-A1 (DE)
Title: Work bench for tombstone support - has pivoted loading table on one side with cylinder actuator to transfer work from trolley to bench top
Inventor: WICKER OTTO
IPC: B25H1/02
Filed: 1979-05-09
Abstract: The working bench (1) is intended for heavy workpieces (2), particularly tombstones. It comprises a frame (11) and a workpiece support (31). A loading table (41) is pivoted (45, 46) to the frame to one side of the support (31) to receive the workpiece from a trolley or cart and transfer it to the support (31). The table (41) is moved from its hinged-down receiving position into a horizontal position by a cylinder actuator (51). The support (31) and/or the table (41) may comprise support rollers (32, 44) rotatably carried between lateral frame members (16, 17, 42, 43). The table may have a pref adjustable and removable work retaining stop (47, 48) at its free end.
Patent DE-2920484-A1 (DE)
Title: Magnetic circuit measurement of primary coil dc - is by generation of compensation in secondary winding
Inventor: BRECKEL WERNER
IPC: G01R17/02
Filed: 1979-05-21
Abstract: A device with a magnetic circuit for measurement of the d.c. in a primary winding using the compensation method and a secondary winding supplied with an a.c. operates with an accuracy unaffected by remanence and nonlinearities in the magnetic circuit magnetisation characteristic. A compensation d.c. is fed to a secondary winding so as to balance out the induction in the magnetic circuit due to the d.c. in the primary winding. The compensation current is used as a measure of the primary d.c. On input of an operational amplifier (12) is connected via an integrator (11, 14) to the secondary winding (3) a.c. generator (1) output. Its other output is earthed and its output drives a further secondary (20) with the compensation current.
Patent DE-2921135-A1 (DE)
Title: Cutting glass panes which are reinforced by wire inserts - where pane is scored, locally heated to melt wires, and then fractured along score
Inventor: GOSGER PETER
IPC: C03B33/07
Filed: 1979-05-25
Abstract: One surface of the glass is scored along the cutting line; and then induction heating is used to melt the wires locally underneath the scored line. A bending load is next applied so the glass fractures along the scored line. When the pane has thick wire inserts, the glass is pref. fractured along the scored line prior to induction heating and melting of the wires. An inductor is pref. moved over the scored line to heat and melt the wires. Used, esp. for cutting glass strip reinforced by wires into suitable lengths.
Patent DE-2925641-A1 (DE)
Title: Rectangular crate layer grab - has supporting friction aprons fitting in spaces between crates before compression by jaws
IPC: B66C1/44
Filed: 1979-06-26
Abstract: The rectangular grab handles bottle crates assembled into rectangular layers, particularly when loading pallets, having two or more clamping jaws on opposite sides and an auxiliary mechanism engaging with the crate sides inside the layer. Supporting aprons (11a-c) of material with a high coefficient of friction and extending in one or more directions fit in the spaces (12a-c) between the crates (7) of the layer (6), and are elastically mounted on the grab (3), the crates being pressed against them bythe jaws (10). The aprons can be formed of roughened, perforated or ribbed sheet metal.
Patent DE-2931263-A1 (DE)
Title: Book-mark which automatically indicates correct place - has flexible flap which slips from page to page during reading
Inventor: PROBST GEORG
IPC: B42D3/14
Filed: 1979-08-01
Abstract: A bookmark is made from a strip of cardboard or of plastics and has a flap (1) at one end and three lateral prongs (4,5,6) at the other end. The prongs (4,5,6) are clipped over the last page of the book near the spine (13) and the flap (1) is initially placed on the front page. As the pages are turned over by the reader, the flap (1) slips from page to page so that it always rests on the page where the reader finished. This place is thus automatically marked without the reader having to remember to insert the bookmark after reading.
Patent DE-2932818-A1 (DE)
Title: Waste compactor with removable container - separated from ram chamber by door which also forms part of pivoted container closure
Inventor: MCDERMOTT ROBERT HUGH
IPC: B65B63/02
Filed: 1979-08-13
Abstract: The waste compactor has a chamber (12) within which waste is placed tobe compressed against a door (19) of a closed container (11) connected to the chamber. The door is then opened by lifting it vertically with rams (21) and the compressed waste pushed into the container before the cycle is repeated. When the container is full, the door remains closed and the container is disconnected from the chamber and removed for emptying. The door forms part of an end closure of he container, the end closure being pivotable about a horizontal axis for emptying the container.