baber/WOPTO huggingface dataset:
Patent DE-2550185-A1 (DE)
Title: FM transmission telegraph and data exchanges - uses segregated band system on subscriber lines with FM to DC conversion system
Inventor: KREUZER FRIEDRICH
IPC: H04L12/00
Filed: 1975-11-07
Abstract: Subscriber lines are connected in the exchange to concentrated converters converting the f.m. signals into d.c. telegraph signals. A transversal circuit with a blocking choke and a high value resistor is provided in the subscriber station between the line wires. The resistor can be shunted both during calling and also during dialing and writing states. Subscriber circuits in the exchange have devices for evaluation of d.c. dialling and switching through signals, and are connected through a switching stage to a free convertor. Convertors have in addition to the usual conversion devices two high resistors, through which the subscriber line is after engagement of a convertor, connected to a d.c. voltage source.
Patent DE-2556747-A1 (DE)
Title: Swimming pool solar energy collector with parallel absorbers - has header for each absorber fed from preceeding header overflow
Inventor: KROLL RUDOLF
IPC: F24J2/04
Filed: 1975-12-17
Abstract: Several solar energy absorbers (1-5) are fed with water in parallel. Each is supplied by a connection (11-15) from its own header (6-10) and all discharge heated water into a common return header (22). The main flow (16) enters the top header (6). The pressure limiting overflow (17) from this header bends over and enters the next header (7) below it as the supply to this header. The same arrangement continues with successive headers (8-10) and overflows (18-20) until the last header (10) whose overflow goes straight into the return header (22). Separate absorbers arranged vertically above each other can thus be worked in parallel with pressure limiting overflows as in 2550018, fed successively from each other. The height between successive absorbers can vary from one pair to another.
Patent DE-2601897-A1 (DE)
Title: Stable litter retaining device with liquid drain holes - has inverted U-section retainer with apertures and channels for liquid
Inventor: VELDMAN ADRIAN
IPC: A01K1/015
Filed: 1976-01-20
Abstract: The device is for use in a cowstall and is intended to retain litter on the standing while at the same time allowing any liquid to drain into the dung channel (19), and preventing the latter from becoming blocked with straw, etc. It consists of an inverted U section with one side (12) bent outwards (15) at right angles to form an apron which lies flat on the standing to which it is attached. The other leg (13) of the U is extended downwards (11) so that it lies flat against the edge of the standing (20) to which it is bolted. The side (13) is raised in parts to form channels (27) to carry any liquid, which has passed through elongated apertures (26) in the side (12), down into the dung channel (19).
Patent DE-2606478-A1 (DE)
Inventor: MUNZ SIEGFRIED
IPC: G04D7/12
Filed: 1976-02-18
Abstract: The clock frequency fed to a clock control unit (28) is simultaneously transmitted to a display unit (26, 36). The latter displays a plurality of sequential clock pulses by means of a plurality of display elements (1 to 16) which are arranged in a spatially distributed fashion and driven successively. As a result, the input level of the control unit is to be displayed even in the case of high clock frequencies in an accurate and well-arranged fashion. It can thereby subsequently be determined whether a clock is arranged in the correct order on the sensor (21). <IMAGE>
Patent DE-2606750-A1 (DE)
Title: Shatter-proof organic plastics coating prodn. on flash-bulb - by preheating, coating in stream of powder contg. thermosetting resin and hardener, fusing and curing
Inventor: REIBER HANS DIPL PHYS DR
IPC: F21K5/08
Filed: 1976-02-19
Abstract: Application of a shatterproof coating of organic plastics to flashbulbs with a bulb vol. of max. 1cc involves: (a) preheating the bulb to a temp. Tv in the 140-220 deg.C range; then (b) coating with a stream of powder; and (c) fusing and curing the powder, which has sufficient flow, for a time tA of 12-3 min. at a temp. TH of 150-200deg.C to a solid transparent coating. The powder consists of a dry plastics powder mixt. with a particle size of 100-200 microns and is produced from 92-96 wt.% thermosetting resin, 4-6 wt.% hardener, less than 1 wt.% flow aid and 0-1 wt.% benzoin. The stream of powder has a density of ca. 0.1 g/s.cm2 and the bulb is rotated at a rate of at least 3 rpm for 0.4-2 s at a distance of 4-6mm from the source of powder.
Patent DE-2609532-A1 (DE)
Title: Automatic course control system particularly suited to ships - with course define by cable laid on seaway bed to induce coil voltages on board ship
Inventor: GILLES DIETER PROF DR ING
IPC: G05D1/02
Filed: 1976-03-08
Abstract: The automatic course control system is intended to maintain a ship on a course determined by cable laid along the seaway. The cable (K) carries an alternating current that produces an electromagnetic field which is detected by on-board coils to fix the co-ordinate position relative to the ship. The induced voltages are related to the vertical and horizontal angular positions relative to the cable by a number of trigonometric equations involving sines or cosines of the inclination angles multiplied by a factor A/r, where r is the radius vector and A is given by A=(1/2. PI). mur muoFnWIo, where muo, mur are the general are relative permeability constants, F is the effective coils area, n is the number of windings, Io is the cable current amplitude and W is the a.c. frequency.
Patent DE-2610079-A1 (DE)
Title: Underwater pipe line laying - uses travelling shield to keep water away from pipe sections during joining
IPC: F16L1/036
Filed: 1976-03-11
Abstract: The method of laying pipe lines below the water table uses a steel shield (2) with a circular outlet at the rear. The shield (2) is placed in the trench and the outlet (5) fitted over the pipe (6). The next section of pipe (8) is placed at the bottom of the shield on supports (9). The new section (9) is pushed against the section (6) by hydraulic jacks (11) and at the same time the shield (2) is pushed forward in the opposite direction until there is sufficient space to lay the next section of the pipeline. A sealing ring (7) is fitted in the bore of the outlet (5) to prevent the ingress of water.
Patent DE-2613513-A1 (DE)
Title: Hearing aid adapting output to wearers disability - halves frequencies and mixes them back with original microphone output
Inventor: KREMER ALBERT DIPL ING
IPC: H04R25/00
Filed: 1976-03-30
Abstract: The hearing-aid halves the frequencies of the signals at the microphone output to improve the quality of the sound reproduced by the loudspeaker. The frequencies may be halved one or more times using one or more frequency dividers and the result is mixed back with the original output of the microphone. Choosing the number of halvings and the way in which the resulting signals are combined allows the hearing-aid to be adapted to the wearer's disability. Gain controls can be included in the separate division channels to set relative volumes before recombining the signals.
Patent DE-2624051-A1 (DE)
Title: Goods packing process for cartons of crates - uses inflated air cushions to fill intervening spaces against walls covered by airtight material
IPC: B65B55/20
Filed: 1976-05-28
Abstract: The process is for pacing goods in cartons or crates, spaces being left between the items and the carton walls and which are then filled in. Air cushions are used to fill the spaces concerned, and these can be inflated after the items are inserted, having been previously inserted and fastened to the walls. The walls can be covered on the inside with airtight material, to which a tear-proof plastic sheet is then secured along on airtight joint, thus forming a sac inflated after the item has been inserted. The carton can be folded from a single sheet of material, and the cushions can be sealed off after inflation and before the top flaps are shut.
Patent DE-2625662-A1 (DE)
Title: Lengthways movement protected roller shutter - has wedge tapered short shank on small metal plate type locking member
Inventor: STREIB ALBRECHT
IPC: E06B9/165
Filed: 1976-06-08
Abstract: The roller shutter has hollow shaped slats secured against lengthways displacement, with one or more locking members inserted in slits cut in two adjacent hooked interlocking slats. The locking member (2) comprises a small metal plate with two shanks of unequal length, forming a small wedge angle before insertion int the slats (1). Their width matches that of the slit. Near the edge (24) facing the opposite shank (22), one shank (21) incorporates a shaped section which tapers in a wedge shape towards the other. The shorter shank length can equal the interval between a pair of lengthways cross arms (11, 13), while its broad sides enclose a small angle with the plane of the slit.
Patent DE-2628020-A1 (DE)
Title: Short circuit stabiliser for earth conductor - has stationary contact with current loop whose electrodynamic moment affects free end of moving contact
Inventor: PLETTNER HORST
IPC: H01H31/00
Filed: 1976-06-23
Abstract: The device is intended for stabilising the switching-on position of an earthing switch in case of a short circuit. Its moving contact is in the form of a single-arm lever. The counter-contact (18) has a current loop whose electrodynamic moment affects the free end of the moving contact (2). Thus it acts counter the breaking moment caused by the short circuit. The arrangement forces the moving contact to remain in the switching-on position. Preferably the stationary counter contact (18) is conductively coupled to a shank (19) of a U-shaped holder (17), while it is secured insulatingly to the other shank (20). The current input is in the centre of the holder stirrup.
Patent DE-2634210-A1 (DE)
Title: Interferometer for measuring ultrasonic surface vibrations - uses polarized laser beam reflected from surface to calibrate piezoelectric cells
Inventor: DRAIN LESLIE ERNEST
IPC: G01B9/02
Filed: 1976-07-30
Abstract: The interferometer is designed for measuring the typically ultrasonic vibrations of a flat surface, and in partic. for calibrating piezoelectric crystal devices, and depends on observing and measuring the polarization change produced in a polarized laser beam as it is reflected from the surface concerned. A laser (3) produces a beam (4) which passes through a quarter wavelength plate (5) to produce circular polarization, an electroc optical control unit (6) which produces two beams (4', 4") of slightly different frequencies and opposite polarization. These pass through a Wollaston prism and one of them is reflected back by the surface (1) concerned, mixed with the incoming polarized beam (4) and fed to an evaluation network (C). The output of this in turn controls the electro optic beam control unit (6) which contains two Kerr cells (24, 25) and this output may be used to represent the behavior of the vibrating surface (1). The details of the evaluation network (C) and an alternative form of the interferometer are described at some length.
Patent DE-2646081-A1 (DE)
Title: Binary logic or wiring testing device - codes and stores received signals with each coding releasing subsequent test code
Inventor: SUCKALE DIETER J ING GRAD
IPC: G01R31/04
Filed: 1976-10-13
Abstract: The device interrogates in series states of not yet activated terminals of a tested unit whose terminals are individually and consecutively activated. After each activation all terminals to be tested are simultaneously scanned, nil results are suppressed and signals received are binary coded in a specified order and stored. Each coding releases the previously blocked, next signal coding, and the last coding initiates the next activation step, until all terminals to be activated have been processed.
Patent DE-2658390-A1 (DE)
Title: Sec. recovery of oil by steam stimulation - by oxidn. of feed to give fuel gas, generation of energy and steam from fuel gas, and injection of steam into oil bearing formation
Inventor: SCHLINGER WARREN GLEASON
IPC: E21B43/24
Filed: 1976-12-23
Abstract: The sec. recovery of oil from an underground reservoir involves partial oxidn. of a hydrocarbon feed to give a raw fuel gas, followed by burning the fuel gas in a gas turbine which drives a compressor or electric generator. The heat in the raw fuel gas and in the flue gas from the turbine is used to produce high quality steam. The steam is injected into the formation to accelerate prodn. and give additional oil recovery. Mechanical power and/or electrical energy are also produced. Feeds include carbohydrates, cellulose materials, oxygenated cpds., waste liquid, by prods., and gaseous, liquid or solid hydrocarbons. Pref., the feed is at least part of the recovered oil. This is partly oxidised at 1500-3500 degrees F and 1-250 (10-180) atmos. abs., in presence of a gas contg. free O2, to produce a raw fuel gas contg. H2, CO, CO2, H2O, particles of C, and also N2, CH4, COS, H2S and/or Ar. This gas has heating value 75-350 BTU/standard ft3. (2) The gas is cooled by indirect heat exchange with water, to give steam and cooled fuel gas. (3) The cooled gas is cleaned and purified to give a clean fuel gas contg. H2 and CO, and also CO2, N2, CH4 and/or H2O. (4) The clean gas is burned in a gas turbine, to give a clean flue gas. (5) The flue gas is passed through an expansion turbine, to develop mechanical power and/or electrical energy (6) The steam from stage (2), and the flue gas from stage (5) are cooled by indirect heat exchange with water, to produce steam. (7) Part of the steam from stage (6) is passed into the underground formation. (8) Oil and water are removed from the formation. (9) At least part of the water sepd. in stage (8) is treated and recycled into stage (6).
Patent DE-2703819-A1 (DE)
Title: Ultrasonic carpet cleaning machine - uses fluid coupling medium between carpet pile and sounding head for release of dirt
Inventor: JAEHRLING KLAUS
IPC: A47L11/34
Filed: 1977-01-31
Abstract: The ultrasonic carpet cleaner comprises a mobile unit with a suction blower and a suction nozzle (8) set behind the cleaning zone (5) in the operative direction. This cleaning zone is formed by a wide slotted nozzle (6) which slides by its mouthpiece (14) over the carpet pile (2). A sounding head (11) provides ultrasonic waves which scan the carpet pile through the interpolation of a fluid coupling medium such as water. A fat-dissolving additive can be added to this water so as to provide a more effective cleaning action. The ultrasonic cleaning ensures that the dirt is released from deep down in the pile so that it can be readily taken up by the suction blower.
Patent DE-2705542-A1 (DE)
Title: Plastics hot water tank with reinforcing winding - has boss with sliding stiffening cap secured during winding operation
Inventor: SCHIEDAT HEINZ DIPL ING
IPC: B65D90/02
Filed: 1977-02-10
Abstract: The plastics hot water tank, has a plastic inner vessel with a reinforcing winding, and stiffening caps enclosed by the winding. The inner vessel (1) has a boss (6) formed on top, to which one of the caps (4) is fixed for the winding operation, but on which it slides when in use. The second cap (5) is positively fixed to an opening neck (9) on the vessel. The boss can be a coaxial guide for the cap, which is secured to it by a fixing device to prevent turning during the winding operation, typically by a screw or nut engaging with a thread formed in the boss.
Patent DE-2707219-A1 (DE)
Title: Agricultural field watering system - uses radio controlled valve units operated in UHF range to regulate water flow
Inventor: WOLLNY HUBERTUS
IPC: A01G25/16
Filed: 1977-02-19
Abstract: Watering of agricultural surfaces is performed where watering equipment is connected with a water supply system via several valve units and pipelines. This watering equipment can be selectively switched in and out via a remote control of the valve units. The valve units (20) have a mains independent current supply and are controlled without wires via electromagnetic waves. The valve units (20) are controlled by frequencies in the UHF range, in the range 26-28) MHz specially at 27 MHz. Further the valve units can be controlled singly or in groups. The valve units (20) have a battery operated spark receiver (54).
Patent DE-2708995-A1 (DE)
Title: Pipe layer assembly mechanism for stacking - has overlapping transverse conveyors controlled by counter mechanism (OE 15.4.77)
Inventor: DURNIG HERBERT DIPL ING
IPC: B65G57/18
Filed: 1977-03-02
Abstract: The mechanism assembles bar-type items, partic. angle steel or pipes in layers to form a stack, the items being delivered in the lengthwise direction by a first conveyor. A second and transverse conveyor removes them from the first one to form a layer, while a third transverse one moves the complete layer forward. Transverse conveyors (2, 8) overlap, and a counter mechanism (16) is provided for the items removed from the first conveyor (1). Each time a set and pref. predetermined number of items is reached, this emits a signal for the third conveyor to remove them. The mechanism can be arranged to emit a signal driving the third conveyor for a distance >= the width of the assembled layer.
Patent DE-2711210-A1 (DE)
Title: Tape recorder combined with electronic computer - have common power source and may also include radio with frequency scale
Inventor: SATO MASAAKI
IPC: G11B31/00
Filed: 1977-03-15
Abstract: The tape recorder (2, 3, 4) is in the form of a compact rectangular unit and has the cassette (2) microphone (4) and speaker (13) on one face of the equipment. On the reverse side of the box is an electronic computer with keyboard (10) and display unit (11). Both components are driven by the same battery power pack. The equipment may also be designed to contain a radio mounted in the side of the box and having a small antenna which may be extended for use, and a frequency scale to locate the station required. Adjustment knobs for the various ports of the assembly are situated in convenient locations on the edges of the container.
Patent DE-2711563-A1 (DE)
Title: Long-life filter, esp. for coffee - comprising porous metallic material with anodised aluminium surface layer
IPC: A47J31/08
Filed: 1977-03-17
Abstract: Filter for mixts. such as coffee made from ground coffee beans has high wear resistance and has adequate strength against mechanical and chemical stresses to last for long periods. this saves having to repeatedly purchase throw-away filters. The filter is made in the shape of a circular or flat funnel out of a porous metallic material. Its surface has a high-purity and bright galvano-aluminium layer which has been converted by an Eloxal process into anodised aluminium. The surface can be permanently coloured in attractive shades with adequate resistance against boiling fluid. The filter funnel can be prepd. by cutting out an hourglass shaped blank and welding the two side faces together.
Patent DE-2713276-A1 (DE)
Title: Hexa:methyl-phosphoro-tri:amide recovery from distn. residues - by thermal treatment or reacting with inorganic acid chloride
Inventor: LIBERDA HEINZ DIPL CHEM DR
IPC: C07F9/26
Filed: 1977-03-25
Abstract: Process for working up P- and N-contg. residues obtd. on distiln. of hexamethyl-phosphortriamide (I) under reduced pressure and which contain practically no free (I), to produce additional (I) and/or phosphoric acid dimethylamide dichloride and/or phosphoric acid bis-dimethylamide chloride is claimed. The distn. residue is first heated under reduced pressure to pot temp. which are >=40 degrees C above te b.p. of (I) at that pressure, the resulting volatile decompsn. prods. being distilled off simultaneously or subsequently, and/or the practically anhydrous distiln. residue, opt. in the presence of an inert solvent, is treated with 0.3-10 by wt. of inorganic acid chloride and subsequently (opt. after distilling of excess acid chloride and/or solvent) is distilled under reduced pressure. (I) is used as a solvent and reaction medium. Process utilises residues that might otherwise give rise to pollution problems as a source of further (I) or of intermediates which may be converted into (I).
Patent DE-2727384-A1 (DE)
Title: Aq. poly:enyl-tri:aryl-phosphonium salt soln. prodn. - by steam stripping of organic solns.
Inventor: REIF WERNER DR
IPC: C07F9/54
Filed: 1977-06-18
Abstract: Prodn. of aq. solns. of polyenyltriarylphosphonium salts of formula R-P(Ar)3 +X- (I) (where R is a 5-20C aliphatic, cycloaliphatic-aliphatic or aromatic-aliphatic polyene radical; Ar is aryl; X- is the anion equiv. of a strong acid) is carried out by steam stripping a 10-70 wt.% soln. of (I) in an organic solvent, maintained at 30-120 degrees C, so that the solvent and any other volatile cpds. derived from the synthesis of (I) are removed and part of the steam condenses to form an aq. soln. Some cpds. (I), e.g. (I; R is beta-ionylidenethyl) are useful as pesticides (e.g. for control of water snails); others are useful as intermediates for carotenoid synthesis (cf. DT 2505869). The process avoids thermal decompsn. (cf. direct distn.) and foaming (cf. addn. of water followed by distn.).
Patent DE-2729047-A1 (DE)
Title: Impact damper for stamping presses - has elastically compressible stack of non-metallic thin plates on tool bottom section
Inventor: CHRUBASIK PAUL
IPC: B21D28/20
Filed: 1977-06-28
Abstract: The impact damper is for stamping presses which have a tool top section and bottom section and a holder for the material to be machined, which lies on the bottom section. On the tool bottom section there is an elastically compressible stack of non-metallic, thin plates, especially of paper or plastic. In the output position, the top side of the stack projects beyond the surface of the material which lies on the tool bottom section. There can be one central plate stack or several of them distributed over the surface of the tool bottom section.
Patent DE-2735045-A1 (DE)
Title: Plastics foil lacquer compsn. contg. ethylcellulose binder - used in the prodn. of integrated circuits
Inventor: KAUSCHE HELMOLD DIPL PHYS
IPC: H05K3/04
Filed: 1977-08-03
Abstract: Metallic structures are formed on plastics foils by coatings >=1 side of the foil with a lacquer (I) in the required pattern, covering the entire surface with a metal (alloy), esp. by evapn., and removing the lacquer using a solvent. (I) comprises a mixt. of ethyl cellulose, terpincol and pttd. chalk which is allowed to dry for 5-10 mins. at 100-135 degrees C. The structures are esp. circuits having integrated functional elements, e.g. induction, capacity and resistance. (I) is cheap, prints on well, does not evolve gases and is flexible enough not to spring off from the (polyimide or PET) foil as the latter is being metallised.
Patent DE-2740259-A1 (DE)
Title: Freezer chest for fresh comestibles cooled by humidified air stream - which is circulated along lagged pipe with spaced air discharge nozzles, and routed by guide baffles
Inventor: NAX HEINRICH
IPC: A47F3/04
Filed: 1977-09-07
Abstract: In the parent patent freezer cabinet, esp fro fresh foodstuff operates by a circulating stream of cold air which is humidified and conveyed through the cabinet. It is in contact with a cooling compartment below the foodstuff compartment via air inlets and outlets. The freezer cabinet has its own vapour generator, connected with nozzles opening out into the stream of cold air. These nozzles are in form of a lagged pipe running the length of the freezing compartment and fitted with vapour outlets. In this adding the pipe is fitted with guide baffles enclosing a vapour distribution duct into which the spaced-apart vapour outlets open out. At their free ends they form vapour discharge slots which extend codirectionally with the length of the freezer cabinet. Pipe is pref provided with insulation eg. of polyurethane.