baber/WOPTO huggingface dataset:
Patent DE-2355427-A1 (DE)
Title: Electromagnetic wave amplifier - with metallic conductive path formed on insulating layer between transistor source and drain
Inventor: DOSSE JOACHIM PROF DR-ING HABI
IPC: H03F3/55
Filed: 1973-11-06
Abstract: The s-c chip, in which the FET souce drain and gate regions are formed, is provided with an insulating layer on which the metallic conductor path is formed, between the underlying transistor souce and drain regions. By applying a voltage across the source and the drain the charge front passing between the source and drain has the forward propagation velocity of the electromagnetic waves in the metallic conductor and arrives with the same phase velocity as the rear edge of the electromagnetic waves. Pref. the switching of the FET is synchronised with the electromagnetic wave. The metallic conductor path is pref. at an angle to the source and drain regions and is in the form of a square waveform.
Patent DE-2362852-A1 (DE)
Title: Low consumption differential power motor - has high pressure container fed from two sources for high efficiency
Inventor: BERTRAMS JOSEF
IPC: F03G7/10
Filed: 1973-12-18
Abstract: The engine rotor is set in rotation by pressure medium and delivers the spent pressure medium to a container. Simultaneously the pump rotor rotates, removes pressure medium from the container and compresses this further in the high pressure container. The pump rotor pumps more pressure medium into the latter container than is removed from this by the engine rotor whereby the pressure increases. The safety valve opens and allows the excess pressure medium in the container to flow to the low pressure region whereby the pressure in the high pressure container remains constant. The circuit is enclosed. The motor is designed to use a minimum amount of pressure medium.
Patent DE-2363350-A1 (DE)
Title: Monitor of current consumption in motor vehicles - has ferrite ring core with two windings and multivibrator pulse circuit
Inventor: JANSSEN HEIKO
IPC: B60Q11/00
Filed: 1973-12-20
Abstract: The set-up includes a decoder circuit which is so designed that the ferrite ring core is magnetised to saturation by the properly flowing consumer current. The ferrite core holds a winding loaded with pulses and another winding calling up the pulses. The winding conducting the consumer current can consist of only a few turns. The winding calling up the pulses can be connected to a monostable multivibrator broadening the pulses. A pulse generator can be connected via an amplifier circuit and an isolating capacitor to the winding loaded with pulses. A store can be connected to the output side of the multivibrator.
Patent DE-2404385-A1 (DE)
Title: Variable diameter V-groove pulley - has play in sliding members and wear reducing bearing pads
Inventor: WILLIAMS WILLIAM ALBERT
IPC: F16H55/56
Filed: 1974-01-30
Abstract: There is a vee groove pulley (20) which has an interior boss (21) associated with a shaft. At the end of this boss is a conical flange (22) which can engage on one side of a belt (23). A second flange of the pulley (24) can move axially on the boss (21) and has a tubular piece (25) in which slides the boss (21). The moving pulley flange (24) is pressed against the belt by a spring (26). There is play (a), (b) at either end of the cylindrical recess of the tubular piece (25). This play varies according to axial displacement of the moving flange. The bearing faces are multiple pad type, reducing wear.
Patent DE-2409683-A1 (DE)
Title: Cooling system for telecommunications appts. - uses air convection currents directed over cct. groups
Inventor: LUDWIG KARL ANTON
IPC: H05K7/20
Filed: 1974-02-28
Abstract: The telecommunications appts. has a number of stacked circuit groups, and is provided with an air intake having a sheet metal deflector plate to direct the air over the circuit groups, with the air leaving the appts. at the top, after passing over each stage. The bottom surface of the deflector plate serves to deflect warm air rising from a lower stage through a side outlet. Pref. the air intake has a number of vanes which can be adjusted to control the intake flow, and this air may pass through one or more filters, before passing over the circuit groups.
Patent DE-2410241-A1 (DE)
Title: Dosage form for solid pharmaceuticals - consisting of small tablets prepd. by powder compression
Inventor: HINZ ALFRED DR ING
IPC: A61K9/28
Filed: 1974-03-04
Abstract: A dosage form, resembling a granulate, for solid pharmaceuticals (I) consists of individual particles prepd. from powdered (I) by conventional compression to small tablets. Pref. the powder is subjected to fine sieving before compression. This dosage form is more widely applicable than normal granules and avoids the difficulties associated with tablets and dragees. Since the individual particles are small the active ingredient is generally released quickly (although enteric coatings may be applied); they can be measured out by vol., wt. or number, are extremely strong and can be coated e.g. by spraying, or filled into capsules. A specific application is for dry organ preparations, extracts or concentrates used in enzyme substitution therapy of the digestive tract.
Patent DE-2411722-A1 (DE)
Title: Flexible paper web printing machine - has silk screen printing cylinders containing magnetisable roller wipers with magnets below web
Inventor: ZIMMER JOHANNES
IPC: B41F15/10
Filed: 1974-03-12
Abstract: The material web is withdrawn from a supply coil and travels in a flat state in the region of the printing rollers so that the web tension alone does not lead to contact between the pressure base and the web. When the magnetic system of the ink application unit is activated through the magnetic roller wipers, the printing cylinder is pulled down towards the magnetic pressure base - the rollers to effect contact between web and base. If the original speed of the web is greater than that of the rollers then the web section is braked to the speed of the web section eld by the rollers.
Patent DE-2414267-A1 (DE)
Title: Pulse supply cct. for electric local clocks - has switch device and operating shaft driven by synchronous motor
Inventor: HALLMANN WERNER
IPC: G04C13/06
Filed: 1974-03-25
Abstract: The switch device comprises at least two successively operated spring switches, one being a closure switch, for determining the start of the pulse, and the other being an opening switch for determining the end of the pulse. The switches are controlled by a single cam carrier through the falling of nockers onto respective control tracks. Pref. for supplying drive pulses for the local clocks of alternating polarity two parallel opening switches are provided, these switches being controlled by two knockers, which are spaced by 180 deg. Pref. all the switches are micro switches.
Patent DE-2425087-A1 (DE)
Title: Self-loading agricultural vehicle - has intermediate conveyor with axis forward of loading drum delivering to intermediate chamber
Inventor: ACKERMANN WILHELM
IPC: A01D89/00
Filed: 1974-05-24
Abstract: The material is loaded by a drum rotating on a horizontal transverse axis, together with a rotary intermediate conveyor parallel to it. The latter encloses with the drum and the times on it on one side and with a guide wall extending from the drum on the other side a first transport passage for the crop. Knives extend from the wall, working with tines on the drum. A further elevator with tines works in a second passage connected to the first and delivers the material into the vehicle body. The axis of the intermediate conveyor (16) is in front of the loading drum axis (6) in the travel direction, and the first transport passage curves (12) round the intermediate sack-shaped settlement chamber (45) forming the lower end of the second passage (25). This chamber is above the intermediate conveyor ad in front of its axis in the travel direction.
Patent DE-2425990-A1 (DE)
Title: Antilock brake system - has control valve in housing with means responsive to control fluid pressure
Inventor: MACHEK JOHN A
IPC: B60T8/42
Filed: 1974-05-30
Abstract: Control fluid pressure is applied between inoperative position and operative position. Other means are also movable to a position predeterminately restricting the applied flow of control fluid pressure. Control valve also for an antilock brake system having a housing chamber for control fluid pressure in which relay means respond to control fluid pressure. Control fluid pressure is applied to the chamber and a pair of solenoid means controls the flow of fluid pressure through the flow passages. Another antilock brake system has a method of cyclically applying and exhausting fluid pressure.
Patent DE-2428657-A1 (DE)
Title: Label attaching for weighed, netted article - printed label is attached to netting as article slides down chute
Inventor: SEIFERT WOLFGANG ING GRAD
IPC: B65C7/00
Filed: 1974-06-14
Abstract: Articles enclosed in netting are automatically weighed and a label printed with the weight. The label is attached to the netting by a mechanism which has a sloping slide chute with a hole in it, through which passes an arm actuated by a linkage under the chute, which extends towards the printing mechanism so that a label is dispensed into the jaws at the end of the arm. The movement of the label actuates a photoelectric device which causes the jaws to grip the label, and the arm swings back so that the top of the label protrudes through the hole in the chute. This action releases the packaged articles, and when it slides down the chute, hooks on the label engage the netting so that the label is attached to the netting, then the labelled article falls onto a take-off conveyor.
Patent DE-2440019-A1 (DE)
Title: Coffee portion forming device - with ground coffee portioned out in quantities suitable for making cups at varying strength
Inventor: DANDA REINER
IPC: B65D85/804
Filed: 1974-08-21
Abstract: Coffee portions are produced in a form suitable for selling as cups of coffee by restaurants and refreshment rooms. The method used is to portion out ground coffee in quantities sufficient for 1 - 12 cups in varying degrees of concentration and ready packaged in filter paper in the shape of flattened cones or pyramids for use in the normal coffee machines and filtering devices usual in the hotel and restaurant trade. This method of production avoids the necessity of dosing out portions of coffee with the strength of the product also taken into consideration.
Patent DE-2445724-A1 (DE)
Title: Air tight silo for granulated bulk made from flexible matl. - has circular vertical wall with tapered roof
Inventor: EDER FERENCE DIPL CHEM ING
IPC: B65D88/16
Filed: 1974-09-25
Abstract: A circular silo for the storage of granulated bulk is made of elastic material such as rubber or plastic. The cylindrical wall of the silo is covered by a round tapered roof. At the apex of the roof, an inlet hole for the filler tube is provided. Integral radial tubes, filled with compressed air make the empty silo self supporting. A door located in the wall at ground level is used to empty the silo. Ventilating holes are provided to evacuate air from the silo during loading and to replace it an inert gas for the protection of the bulk material during storage.
Patent DE-2447507-A1 (DE)
Title: Injection moulding process controlled by temp. measurement - from thermo-couple directly contacting smelt to give immediate reading
Inventor: COLLINS GEORGE THOMAS
IPC: B29C45/78
Filed: 1974-10-04
Abstract: A method of regulating the smelt temp. in an injection moulding machine consists of producing an output signal as a function of the smelt temp. using a thermocouple of low thermal capacity in direct contact with the smelt; this out put signal is read at a predetermined period in the injection cycle and from it a process signal is deduced and used for regulating the smelt temp. The pref. point of contact between the thermosoucple and the smelt is in or adjacent to the injection nozzle. Pref. the output signal is read at the same instant in each successive cycle. The instant is pref. located during the injection phase. In a pref. embodiment, the signal is compared with a reference signal corresp. to the desired value of smelt temp. and the process control is then carried out as a function of the magnitude and algebraic sign of the difference. Almost instantaneous temp. recording is obtd. by contrast with previous arrangements where the thermocouple is protected from direct contact with the smelt, and thus a certain inertia is inherent in the system.
Patent DE-2456062-A1 (DE)
Title: Multi cylinder IC engine - has auxiliary two stroke cylinder to ignite main cylinder charge
Inventor: MEZGER HANS DIPL ING
IPC: F02B17/00
Filed: 1974-11-27
Abstract: The auxiliary piston works on the two stroke principle and reciprocates inside a cylinder located between the two main cylinders. The main cylinders (5, 6) each have an inlet and an exhaust valve regulated by a cam in the usual way. The auxiliary cylinder is of considerably less volume than the main cylinders and has an ignition spark plug (15) and two exhaust valves (18, 19) which regulate passages (16, 17) leading to the main cylinders. The auxiliary cylinder is charged with a rich mixture according to two stroke principle and the main cylinders, working on the otto cycle principle receive a very weak fuel mixture. The auxiliary cylinder exhaust valve are timed so that one valve opens to permit the combustion flame to enter the one cylinder which is completing its compression stroke and so ignite the very weak air fuel mixture. The second main cylinder is ignited by the succeeding combustion of the auxiliary charge.
Patent DE-2508228-A1 (DE)
Title: Pure racemic- and meso-tartaric acids prepd from alkali maleate - and hydrogen peroxide with alkali metal tungstate catalyst
Inventor: PRESCHER GUENTER DIPL CHEM DR
IPC: C07D301/12
Filed: 1975-02-26
Abstract: Pure racemic tartaric acid and mesotartaric acid are prepd. by reaction of an alakali metal maleate with aq. H2O2 in the presence of an alkali metal tungstate with a mole ratio of H2O2:maleic acid greater than 1 and the alkali salts of cis-epoxysuccinic acid formed with the alkali metal tungstate, opt. after decompsn. of excess H2O2, are converted to free cis-epoxysuccinic acid and free tungstic acid by passage through a strong acid cation-exchanger and hydrolysis of the cis-epoxysuccinic acid into the desired prodt. is effected either in the presence or absence of the tungstic acid, the tungstic acid being sepd. by an anion-exchanger, and the racemic tartaric acid is then sepd. by crystallisation in known manner from the hydrolysate free of tungstic acid, opt. by evapn. of water and lowering of the temp., after which the mesotartaric acid remaining in the mother-liquor is obtd. by crystallisation by evapn. to dryness opt. in a mixt. with racemic tartaric acid, unreacted cis-epoxy-succinic acid and maleic acid, whilst the anion-exchanger charged with tungstic acid is regenerated in known manner by a dilute alkali soln. and the alkali metal tungstate obtd. is opt. directly recycled to the epoxidation stage, after treatment with active carbon. The mole ratio of H2O2:maleic acid is pref. 1.01-5:1 esp. 1.1-1.3:1. The process is pref. carried out in a series of circulating reactors. Suitable alkali metal maleates and tungstates are of K, Na and ammonium. Racemic tartaric acid is obtd. at very pure state suitable for use in foodstuffs and in high yield.
Patent DE-2509776-A1 (DE)
Title: Compendium of tennis like games - uses tacket, soft elastic ball and area divided into two courts by net
Inventor: WINTER HANS
IPC: A63B37/00
Filed: 1975-03-06
Abstract: The games can be played in any open space and requires a racket which can be of any size, shape or material and a soft plstic ball, which can be cut from soft foam rubber, or a smooth rubber ball can be sprayed with solvent to roughen its surface to slow down its passage through the air. An area of any size can be divided into two courts, of a size which suits the ability of the players, by means of a net or tape held at a height between 0.9m and 1.7m on vertical supports. The limits of each court are marked by weighted ropes.
Patent DE-2514291-A1 (DE)
Title: Liquid filled cavity inspection by camera - has seal above objective for compressed air introduction to displace medium
Inventor: FISCHBACH KARL DIPL ING
IPC: G01M3/38
Filed: 1975-04-02
Abstract: Vertical cavities filled with liquid media such as wells or boreholes can be inspected by lowering a television and/or photo camera with a light source into them. The mounting for the camera objective is equipped with a seal which slides on the cavity walls and has a through pipe for the admission of a pressurised gas. This displaces a certain section of the liquid medium in the vicinity of the objective. This creates satisfactory vision even when the liquid medium is contaminated or not transparent by nature. The camera can be moved along for inspection continuously, the design keeping the liquid medium away from the camera.
Patent DE-2522863-A1 (DE)
Title: Hospital bed with universal application - mattress comprises separately inflatable, interchangeable and interconnecting tubular sections
IPC: A61B6/04
Filed: 1975-05-23
Abstract: Hospital bed with universal usage, having mattress, tilting frame and adjustable back rest whereby the mattress support of the bed frame and the back rest is made of relatively thin-walled X ray permeable sheet material forming a rigid surface. The mattress consists of a number of interconnecting, individually exchangeable and inflatable air tubes each of which can be inflated to such a degree so that even extreme contoured positions can be achieved, required e.g. for cardiac patients, without additional tilting of the mattress other than the back rest. Pref. several air tubes are held together by a cover with side inlets.
Patent DE-2531012-A1 (DE)
Title: Distributing servo valve with sprung piston - has output line connections and piston guide discs
Inventor: BARTHOLOMAEUS REINER
IPC: F16K31/42
Filed: 1975-07-11
Abstract: The distributing servo valve has a control piston (4) within a bore (3a) in the housing. The piston is supported at both ends by spring discs (5, 6) with control springs (7, 8). The operating line connections (A, B) are carried through pocket holes. At the base (A1, B1) of the pocket holes within the operating region of the control piston (4) the control slots (A2, A3, B2, B3) are cut out, with corresponding slots in the wall of the housing bore (3a). These slots contain flanges for guiding the piston (4). The region between adjacent control slots (end into bores (20, 21), communicating with the operating lines (A, B).
Patent DE-2531614-A1 (DE)
Title: Continuously variable vehicle power transmission - combines fluid torque converter with variable 'V' belt pulley to give small packaging vol.
Inventor: AUGUST PAUL DIPL ING DR
IPC: F16H9/12
Filed: 1975-07-15
Abstract: A hydraulic torque converter coupled with narrow 'V' belt transmission using split pulleys provides a continuously variable power transmission unit for use with automobiles that occupies a smaller volume than prior art systems. The fluid coupling (22) drives a pulley set (20) and the distance between the pulley halves are varied by a control rod (11), actuated by a lever (12) driven by a servo (13). The output pulley consists of a similar arrangement (22, 23) with the one pulley disc (23) biased by a compression spring (14). The output drive (4) is over a reversing unit (5) to the vehicle road wheels. A single torque converter can be coupled to five parallel pulley sets, to handle upto 125 H.P. within a reasonable volume.
Patent DE-2533022-A1 (DE)
Title: Coin weight dimension stamping and material tester - has toothed segmented lever with tension spring controls and outlets for accepted and rejected coins
Inventor: DEUBLE HELMUT ING GRAD
IPC: G07F1/02
Filed: 1975-07-24
Abstract: The coin weight testing machine has a flat base plate (4) which supports a spindle (12) which also carries one portion of a tension spring. The coin under test (6) is guided by a channel (3) to a tipping lever (2) which incorporates a toothed segment (35). The springs enable the lever to tip when a coin of the correct weight is guided into position. The movement of one lever arm of the mechanism is limited by a slot and peg motion which is also incounted on the baseplate. At the lower edge of the coin guide channel are exit slots for rejected or accepted coins. The guide slot is also limited in movement by a guide roller (19) with a vertical spindle.
Patent DE-2538951-A1 (DE)
Title: Thiophene derivs. for dyeing synthetic fibres and plastics - prepd. from opt. substd. (2,5)-diphenyl-thiophene-(3,4)-dicarboxylic acid anhydrides and prim. amines
Inventor: DIMMLER MANFRED DR
IPC: C07D495/04
Filed: 1975-09-02
Abstract: New thiophene derivs have formula (I) (where R is H or opt. sybsted alkyl cycloalkyl, aralkyl, aryl or heteroaryl; R1 is H, Cl, Br, CN, carbalkoxy alkoxy or dialkylamino; and R2 is H, Cl, Br, CN, carbalkoxy, alkoxy or dialkylamino). (I) are yellow, fluorescent cp s. patic suitable for dyeing polyesters. Used for dyeing synthetic fibre textiles or plastics. Fast, very strong colours are obtd. In an example, 2 parts 2,5-diphenyl-thiophene-3,4-dicarboxylic acid anhydride were heated with 6 parts 3-methoxypropylamine. (I) obtd. (R1=R2=H; R=MeO (CH2)3-) dyed polyester in brilliant yellow shades.
Patent DE-2541841-A1 (DE)
Title: Simplified self adjusting suspension - uses transverse leaf spring with height servo to middle of spring
Inventor: BUFLER ERNST DIPL ING
IPC: B60G11/44
Filed: 1975-09-19
Abstract: The self adjusting suspension has a transverse leaf spring (5) braced on the chassis at two points (7, 8) and acting as track rods at the outside ends, to set the wheels. The middle of the spring is linked to a height control servo (4). This provides a simple regulating control which allows each wheel a measure of independent suspension. The leaf spring does not need to reach to the wheels and can be linked to the wheels by short tracked rods. The system requires only one servo on one axle. The servo unit operates hydropneumatically to provide a balance with the front suspension.
Patent DE-2543739-A1 (DE)
Title: Swimming pool roll up cover - is plastic sheet with end sealed plastic tubes as buoyant units
Inventor: RAMMENSEE HORST DIPL PHYS DR
IPC: E04H4/08
Filed: 1975-10-01
Abstract: The cover, for a swimming-pool or other outdoor water surface area, is designed to reduce heat loss and to keep the surface clear of leaves and other impurities when not in use. It consists of a sheet of plastic which can be rolled up, incorporating buoyant units which extend parallel to the rolling axis. These buoyant units are in the form of plastic tubes with a watertight seal at both ends. They may be stretched, pref biaxially. They may be connected to the covering sheet by flexible strips encompassing part of their perimeter. Shorter tube sections may be fitted between them, as spacers. The cover is easily produced and handled, is insensitive to stresses, and has max transverse rigidity.
Patent DE-2544565-A1 (DE)
Title: Coaxial cable used as radiating HF LINE - has outer conducting strip with winding reverses parallel to the axes at half wave length intervals
Inventor: BREITENBACH OTTO
IPC: H01Q13/20
Filed: 1975-10-04
Abstract: An HF radiating line consists of a coaxial cable. The conducing core is surrounded by dielectric on which is wrapped a strip. The strip is conducting and its turns are insulated from each other. The windings of the strips (3) covering the dielectric (2) without gaps run in periodic sections in opposite directions, with reversing points in which the strip (3) is approx. parallel to the line axis. The spacing (A) between two reversing points is an integral multiple of a half wavelength of mean signal frequency. This ensures an even and high field intensity.