baber/WOPTO huggingface dataset:
Patent DE-2346085-A1 (DE)
Title: Self-cleaning baking and roasting oven - working at one hundred and seventy five degrees celsius
Inventor: KLAPPER PETER
IPC: F24C15/32
Filed: 1973-09-13
Abstract: A heated roasting oven with a fan for circulating the hot air in the baking and roasting zone, shielded by an air guiding plate forming the suction inlet and the pressure outlet, has its walls and the guide plate in the baking and roasting zone coated with a catalytic oxidising agent. Works efficiently at 175 degrees C as compared with the 300 degrees C necessary in other ovens for the oxidation of the splashed fats, etc., from the foodstuffs, by virtue of cycling of the air at around fifty times a minute, providing ample oxygen.
Patent DE-2351481-A1 (DE)
Title: Remote control system for television receivers - uses ultrasonic pulses of same frequency but different width
Inventor: MINNER WILLY
IPC: H03J9/04
Filed: 1973-10-13
Abstract: These pulses control functions such as volume, brightness, and colour saturation; a second frequency is transmitted as the direction signal until the direction change key is operated; after which a constant amplitude signal is delivered for positive direction change, and an amplitude modulated signal is delivered for negative direction change, or vice-versa. There is only one direction signal system and this is allocated to all functions, which determines for the selected function the direction in the positive or negative sense. Control is thus achieved using a minimum amount of simple equipment, but with little danger of wrong interpreting of signals.
Patent DE-2351540-A1 (DE)
Title: Gravity-impelled cableway car downhill speed control - with friction-wheel pressed against flywheel rotating until scoop arm corrects speed
Inventor: KOHL ERNST DIPL-ING
IPC: B61H11/06
Filed: 1973-10-13
Abstract: The system is for automatic regulation, regardless of load, of the speed of cars running downhill on a self-driven cabble railway, with a hydraulic brake controlled by adjustment of a scoop arm. A worm drive on a shaft of this is cardanically linked to the friction wheel, mounted between two flywheels, hinged to allow swivelling within their area of tolerance, the flywheel being connected by a resilient shifting element to the sliding sleeve of a centrifugal governor. When speed is altered by movement of the sleeve, the friction wheel is pressed against the relevant flywheel, where it attains a rotating movement lasting long enough for the prescribed speed to be restored by the correcting movement of the scoop arm.
Patent DE-2353235-A1 (DE)
Title: Liquid nitrogen prodn. on natural gas tankers - using liquid natural gas cargo for liquefaction and storage of nitrogen
Inventor: LORENZ MICHAEL
IPC: F25J1/02
Filed: 1973-10-24
Abstract: Method is used for preparing liquid N2 which is used to prevent access of oxygen to tanks contg. liquid natural gas on board marine tankers. Gaseous N2 is cooled by heat exchange with part of the liquid natural gas cargo until liquefaction of the N2 occurs, and the liquid N2 is then stored. The gaseous N2 is originally under a pressure of up to 30 atmos. The small quantities of liquid natural gas used can be reliquefied in the plant on board ship or this gas can be used as fuel for the engines. The liquid N2 produced is stored in vessels enclosed by liquid natural gas.
Patent DE-2353516-A1 (DE)
Title: Resin-impregnated paper, coated for chipboard panels - has heat-insulating cushions and heating contact sheets, with cooled press plates
IPC: B27N3/20
Filed: 1973-10-25
Abstract: Plate press for coating chipboard panels with resin-impregnated paper has coolable press plates, between which are stacked panel(s) and applied papers, with contact metal sheets and cushion. The press plates are permanently cooled, and the contact sheets are heating sheets, with the cushions as heat-insulating layers arranged so that the heat produced by energy supply to the heating sheets during pressing flows into the panels and papers and, after switching off the energy supply to the sheets, can flow into the cooling plates, in a time which is small relative to the required heating time for the papers during pressing. Highly glossy decorative coating can be produced.
Patent DE-2363979-A1 (DE)
Title: Even plane drawing board - can receive caps for mosaic components as signal indicator fields in cutouts
Inventor: BOLKART ALBERT
IPC: B43L5/00
Filed: 1973-12-21
Abstract: Drawing board has a movably mounted drawing head and/or ruler. A mounting is fastenable behind at least one cutout for the drawing board and has recesses. Caps for indicating and/or service elements, esp. for mosaic components, provided as signal indicator fields, can be inserted in the cutout and the mounting such that the cap is mounted at least in the mounting and seated fast. The front faces of the inserted caps or mosaic components are in the same plane as the drawing plane. The components can be written on individually with max. accuracy. The firmly supporting structure can comprise telescopic legs or two separable, movable halves which can be individually fixed on both sides of the cap.
Patent DE-2409043-A1 (DE)
Title: Rotary transformer with central disc coil - coil fixed to shaft and rotating between two stationary outer disc coils
Inventor: TSCHUR WALTER
IPC: G01L3/10
Filed: 1974-02-25
Abstract: The rotary transformer allows signals to be transmitted between a rotating shaft and a stationary part. The transformer has no core and consists of three similarly-constructed coils coaxial with the shaft's axis and adjacent to one another. The coils form flat disc-like structures with a ratio of radius: thickness of at least 10:1. The centre coil of the three is fixed to the shaft and rotates with it between the two outer stationary coils. Alternatively, the two outer coil can rotate with the shaft and the centre coil stationary. The two outer coils may be connected either in series or parallel. The whole structure may be screened from external fields by two earthed metal plates adjacent to the outer coils.
Patent DE-2430981-A1 (DE)
Title: Automatic SLR camera - with preset time or aperture and safety interlock to prevent both being set
Inventor: ITO FUMIO
IPC: G03B7/0805
Filed: 1974-06-27
Abstract: The camera can be set for either preset exposure time with automatic aperture control or vice versa. Two blocking mechanisms are fitted. One is to the aperture control and the other to the exposure time control so that when one parameter is preset then the other is only set on automatic ie. the other preset control is blocked. Indicators are operated by the preset controls to indicate in the viewfinder which mode of operation has been selected.
Patent DE-2432265-A1 (DE)
Title: Cantilevered staircase on stepped support structures - with spaced superimposed panels inside steps interconnected by bolts and spacer sockets
Inventor: SCHEU JOHANN
IPC: E04F11/035
Filed: 1974-07-05
Abstract: Connecting bolts are mounted between adjacent steps, in horizontal components inserted in the edge zone inside the steps, with spacer sockets, which are braced between the steps, thrust on them. The horizontal components consist of panels (3a, 4a, 3b, 4b) spaced one above the other inside each step (1a, 1b), interconnected by means of the connecting bolts and additional spacer sockets (7, 8) set on these. connecting bolts (6) are alloted to each step connection. A number of spacer bolts, rigidly connected to the panels, are pref, fitted between the panels in each step, and screwed or welded to them. The whole supporting structure may be made of metal components, while the outside edges of the steps are covered with solid edging or veneering. Between the panels there can be a filling of glued layers of wood. High load bearing capacity can be combined with lightweight.
Patent DE-2435089-A1 (DE)
Title: Tube sleeve-joint using elastic packing ring - shaped to fit the ring groove to avoid distortion causing leaks
Inventor: OHTA PYOZO
IPC: F16L17/00
Filed: 1974-07-22
Abstract: Tube sleeve joints of conventional type which use O-rings or shaped rings, tend to be, or to become, leaky owing to distortion of the ring. In the proposed joint the elastic ring is shaped to fit the groove, with a contact area on the outward sloping face and on the inward sloping face, by a pressure lip. The root of this pressure lip is exposed to the pipe line pressure, i.e. while the inner surfaces will be in contact with the tube when pushed home, the corresponding surface of the pressure lip will not.
Patent DE-2435199-A1 (DE)
Title: Journey graph recorder with double control input - for recording journeys with two drivers has timing monitors and alerts for recording each drivers shift
Inventor: SINZ KARL
IPC: G07C5/12
Filed: 1974-07-22
Abstract: A double input rotary graph recording unit for use on journeys, has switching and monitoring facilities to record the shifts of two individual devices. A switch (9, 11) on the front of the instrument is allocated to each device. The front of the instrument also indicates the speed (2) the time (3), and the distance covered, and gives a warning light (5) of the recording paper in the recorder is not mounted properly taking account of the configuration of the shift switches. A small indicator at each switch also signifies whether that device is resting or is in charge. A switch allows the system to be operated with one device only. In addition to this the basic circuit consists merely of two switches associated with the recording devices, the warning light and a supply.
Patent DE-2438637-A1 (DE)
Title: Elements fire-protective external facing wall - comprising covering layers of load bearing non-combustible material with fillings, and interior opening
Inventor: GRAEPP WOLFGANG DIPL ING
IPC: E04B1/94
Filed: 1974-08-12
Abstract: The facade wall is made up from elements on a combined metal and hard foam system, normally offering no protection against fire risks. The elements here comprise covering layers of load bearing non-combustible material on both side, with an intervening filling of foam, fibres or similar material, and with openings in the covering layer on the side facing the interior of the building. The outside layers may be made of iron, steel, concrete or other high-melting-point materials, but not of aluminium. The foam may be an impoverished foam comprising a core with inlaid particles of foamed glass, breeze or similar bodies. This can combine fire-protective qualities with wide spanning capacity, and additional substructures can be dispensed with. effective heat insulation is also provided.
Patent DE-2441365-A1 (DE)
Title: Insulation resistance measuring and testing device - uses ammeter for first reading without object and second reading with
Inventor: MONAT HERMANN
IPC: G01R27/02
Filed: 1974-08-29
Abstract: The device comprises a control unit (SE) which connects, during a first step, a d.c. voltage source (G) to the measuring device without the tested object, (P). The resultant current is measured by the meter (M). The control unit connects, in the second step, the test object (P) by two switches (K1, K2), and the meter (M) again measures the current. The difference between two currents is formed by a subtractor (S), and the result is delivered directly, or after a further processing. When used as quality control apparatus the measured result can be compared with a prescribed value. A direct evaluation is given since only the resistance of the tested object is given exclusive of the resistance of the apparatus itself.
Patent DE-2443796-A1 (DE)
Title: Hubs for wheels of toy building sets - has metal bush to prevent reduction of clamping effectiveness
Inventor: FISCHER ARTUR
IPC: A63H33/04
Filed: 1974-09-13
Abstract: The hub, intended for toy building sets, is made in two parts (2) and (7). The part (2) is provided with thumb grips (3) and has a projecting split cone (1) provided with a screw thread (10). The other half of the hub (7) has matching conical surface (9) and thread. When the two parts are screwed together the split cone (1) is deformed to provide a firm joint between the two parts. To prevent excessive deflection the conical portion (1) is provided with a split metal bush (12) which resists further deflection as soon as the split (13) is closed. The wheel is gripped between the tapered surfaces (2a) and (7a) or the hub may be used as a pulley.
Patent DE-2444082-A1 (DE)
Title: Three-way tipping trailer - with twin rams linked by compensating valve for rear tipping
Inventor: LACHMUND HEINRICH
IPC: B60P1/16
Filed: 1974-09-14
Abstract: The trailer is fitted with two rams (8) mounted at each side of a transverse support under the middle of the load surface. The rams are pivotted at each end and the trailer can be tipped to either side, or to the rear, depending on which tipping axes are released, or on whether one of both rams are operated. The rams are joined to a control valve, linked to the selector lever which operates the linkage to the catches. For tipping over the rear, the control valve provides a pressure compensating facility to ensure that both rams operate at the same pressure.
Patent DE-2444550-A1 (DE)
Title: Combine harvester with straw chopper - one wall of chopper movable to cover or open opening of discharge shaft
Inventor: MAIER HERMANN
IPC: A01D41/12
Filed: 1974-09-18
Abstract: The chopper is rigidly fixed to the bottom chassis of the straw pan. The chopper consists of a shaft with cutter blades on it, situated directly underneath the straw discharge shaft positioned at the back of the straw pan. The back of the straw pan has an opening towards the back and bottom, and is closed by a section of the shaft wall. The straw dropping from the straw walkers falls into the chopper opening, is chopped up by the shaft, and drops as chopped chaff into the field. The section of wall is pivot mounted on an axle running along its lower edge and along the bottom edge of the straw discharge opening, and is pivoted by mechanical hydraulic or pneumatic means.
Patent DE-2450651-A1 (DE)
Title: Rectifier assembly with series-connected rectifier valves - has cooling air channel built-up from frusto-conical sections for stacked valve groups
Inventor: SCHILLING KURT
IPC: H01L23/467
Filed: 1974-10-24
Abstract: The rectifier assembly has its series-connected, air-cooled rectifier valves divided into groups in several daylight of a framework. The daylights are interconnected via insulating supports and the cooling air is guided through all daylights by a channel with pipelines to the valves in each daylight. The channel (5) is designed from frusto-conical tube sections (7) inserted one into the other and secured at spaced points. Between the frusto-conical tube sections are provided transverse covers (8). Preferably one tube section is provided for each daylight. Between the tube sections the cooling air may be supplied into the desired space through an aperture in the transverse cover.
Patent DE-2451503-A1 (DE)
Title: Underwater massage apparatus bubble grating - having sinple control valve for optimum bubble effect
Inventor: KULISCH GEB KLAGES RUTH
IPC: A61H33/02
Filed: 1974-10-30
Abstract: A pressure distributor is provided with a pressure inlet to a compressed air source and a control valve to selectively open the air inlet channels containing the bubble ports, whereby the air inlet channels (11, 12-1, 12-2, 13, 13-2) are divided into n groups and switched on or off by a mutual control valve (18) with a mutual switch off position (50) for all the air channels and n operating switch positions at the pressure inlet (17). In the first operating position the centre group (11) of air inlet channels in the middle of the grating (10) are switched on, the second position adds in at least one channel (12-1, 12-2) to either side and so on with the nth group of channels (13-1, 13-2) added in the nth switch position. Pref. a control valve is used with a cylindrical rotating switch body (18) divided into 360 deg./n divisions and with the switch rotating into any of these positions.
Patent DE-2452901-A1 (DE)
Title: Restoring separating power of semi-permeable membrane - by washing impurity layer formed with aq. alkaline soln
Inventor: ISHII KIYOSHI
IPC: B01D69/14
Filed: 1974-11-07
Abstract: Separating power of semi-permeable membranes is restored by process in which impurity layer formed on surface of semi-permeable membrane is removed by contacting an aq. alkaline soln. with membrane for a certain time while allowing membrane to continue working under usual press. conditions. Unclean aq. feed fluid (A) having pH 7-8 is allowed to flow in contact with membrane so that a layer of impurities is retained on membrane, while purified liquid flows through membrane. Impurity layer is removed intermittently by intermittent flow of feed fluid (A) and allowing an aq. wash fluid (B), having pH 9-13, to flow in contact with membrane in place of (A) under press. Flow-time of (B) is shorter than time causing degradation of membrane through (B), whereupon flow of (A) is resumed. Process can be applied to membranes used for ultra-filtration and reverse osmosis, for treating wash waters, e.g. from paper- and fish industry, or in fruit-juice mfr. Process is independent of membrane type used. Flow-time of (B) is contact with membrane is pref. 2-10 min. every 10-20 hrs. of operation. Flow-rate of (B) may be 0.1-1 m/sec. Treatment with (A) may be combined with mechanical scouring or scrubbing, e.g. with a sponge. (B) may be an aq. soln. of NaOH or KOH having pH 10-12, or same liquid as (A), adjusted to pH 10-12. Include alkali-resistance membranes, e.g. polyamides and polysuophones, as well as cellulose acetate membranes and membranes which are less alkali-resistant than protein membranes. Feed fluid used with cellulose acetate membranes was paper pulp grinding waste liquor set to pH 7-11. Wash liquid was paper pulp grinding waste liquid having ph 11. Press. was 50 kg/cm2. After 20 hrs. operation, membrane properties changed from water flow 0.64 m3/m2.day at 30 degrees C to 0.52 m3/m2.day and rejection increased from 99 to 99.3%. After 5 min. washing, water flow was restored to 0.63 m3/m2.day and rejection to 99.1%.
Patent DE-2455420-A1 (DE)
Title: Formaldehyde-urea-melamine condensates - by initially condensing formaldehyde and urea, adding melamine, and condensing under alkaline conditions
Inventor: CZEPEL HUBERT DR
IPC: C08G12/38
Filed: 1974-11-22
Abstract: Formaldehyde/urea/melamine condensates are prepd. by (a) precondensing formaldehyde/urea in the molar ratio 1.7-2.3/1 to a degree of condensn. corresp. to an outflow time (DIN 53211) of 15 secs. max. for a solids content of 48-51wt.%, (b) raising the pH value to 8.0-10.0, esp. 9.0-10.0, (c) adding 0.15-0.6 moles melamine per mole urea with stirring, and (d) effecting condensn. until the desired solids content is reached, while maintaining the initial pH value before the addn. of the melamine, and opt. distilling water from the mixt. Gives condensates having a good storage stability without the use of stabilisers, and good processing props. The condensates cure to prodts. having a good resistance to moisture.
Patent DE-2457745-A1 (DE)
Title: Cutter for chenille yarns from warp knitted fabric - using needles with knife slots to accurately guide threads
Inventor: KLEINERMANNS KARL
IPC: D04B35/34
Filed: 1974-12-06
Abstract: Yarns for the mfr. of chenille fabrics are produced by an arrangement of cutters between a warp knitter and a take-up roller. The flat knitted starting matl., consisting of warp threads twisted into pillar stitches binding in the weft threads, is fed with an undulating motion towards rows of needles which are threaded alternately over and under weft ends, and guided accurately, so that the rotating knives cut the wefts centrally between the warp threads. The device cuts the strands accurately with uniformly projecting weft ends and without the possibility of damage to the warp threads.
Patent DE-2501118-A1 (DE)
Title: Vessel for skimming water surfaces - removes floating debris as well as oil, using endless belting which lifts material and discharges it into tank
Inventor: FAST SVEN GUNNAR
IPC: E02B15/10
Filed: 1975-01-13
Abstract: A vessel (1), preferably twin-hulled (10, 10) has two pair of endless belts: One pair (2), runs in a substantially vertical direction and is mounted aft of the storage tank (3) and the other pair (4) is mounted at 20-30 deg. to the horizontal, forward of the storage tank (3). The after belt just penetrates the surface (5), is plain and of a material with a much stronger surface attraction for oil than has water (e.g. steel). The forward belt extends far enough to ensure picking up solidified oil or other debris 30-40 cm below the surface and it is perforated. The holes are 3-4mm. dia. if round and the belt is made pref. of hardened steel. Strippers (6) transfer retrieved material to the tank. Refinements such as collector booms (9) to improve collecting and stripping efficiency may be added.
Patent DE-2502318-A1 (DE)
Title: Active group velocity equaliser for transmission system - uses frequency modulation and control of velocity dependent on frequency
Inventor: FERRARIO REGINALDO
IPC: H04J/
Filed: 1975-01-21
Abstract: The equaliser comprises one or more delay line sections connected by transistor coupling stages. Each delay line section has a transistor to whose base the signal to be corrected is applied; a summator consisting of a differential transformer which forms the vectorial sum of signals applied to its inputs; and adjustable reactance between the transistor between its emitter and the summator inputs, and a resistor between its emitter and the summator's other input. In order to produce a circuit correcting the attenuation characteristic, this resistor is variable and the transistor emitter is connected to frame through a further resistor in parallel with a variable capacitor.
Patent DE-2502595-A1 (DE)
Title: Covering for sun-energy collector - from fluorinated plastic films with improved spectral characteristics and temp. stability
Inventor: JUSTI EDUARD PROF DR
IPC: F24J2/50
Filed: 1975-01-23
Abstract: Cover film of fluorine plastic material for sun-energy collectors, has the following characteristics; a light transmittancy in the visible range of >90%, an infrared absorption in the range 7-10mum of >90%, stability in the range 0-150 degrees C and a density between 1.5-2.2 g/cm3. The film is made from (I) polyvinylidene fluoride (PVDF) or a mixed polymer contg. vinylidene fluoride and another polymerisable perfluorinated vinyl cpd., (II) a mixed polymer contg. chlortrifluorethylene and ethylenen (ECTFE), (III) tetrafluoroethylene (PTFE) and a non fluorinated vinyl cpd. of the formula CH2=CH-R where R=H, (ETFE) or can be a selected alkyl or aryl radical, (IV) PTFE or a mixed polymer consisting of PTFE with a fluorinated vinyl cpd. of the formula CF2=CF-R where R = a selected perfluorinated alkyl radical, (V) a mixed polymer of PTFE and a perfluorinated vinyl ether of the formula CF2=CF-O-R where R = a selected alkyl or aryl residue. The film may be reinforced with (in)organic fibres. The films have improved spectral characteristics relative to polyvinyl fluoride films and to glass plates. They have good weather, cold and heat stability, good mechanical properties. They are lighter and cheaper than glass, show less tendency to collect dirt, ice and snow and are easy to clean.
Patent DE-2503908-A1 (DE)
Title: Double toothed cog eccentric transmission - has coupling pin connecting cogs of a pair through intermediate cog apertures
Inventor: GUETTINGER HEINRICH
IPC: F16H1/32
Filed: 1975-01-31
Abstract: One cog is in constant connection with a stationary internal toothing, and the other with an internally toothed take off cog. There are at least two sets of cogs and the associated, but not neighbouring cogs of a pair are coupled by load pins. The pins extend through apertures in the intermediate toothed cog. The eccentrics associated with the cog pair sare set relative to each other at an angle of 360 deg., divided by the number of pairs. The pins are anchored by their ends in the coupled cogs. The apertures in the wheels have a diameter, larger than the sum of pin diameter and double the value of the eccentricity of the eccentric, which carries the intermediate cogs.