baber/WOPTO huggingface dataset:
Patent DE-2558135-A1 (DE)
Title: Power switching transistor circuit for chopper or inverter - with parallel paths fired in sequence to reduce ripple has DC source and smoothing capacitor
Inventor: WAGNER JOHANN DIPL ING
IPC: H02M3/158
Filed: 1975-12-23
Abstract: The basic circuit comprises a DC source with a smoothing capacitor, a n umber of parallel connected switching transistors (T1, T2,...) each with a series smoothing choke and free wheel diode, and a load. The transistors are switched in sequence so that their relative phase displacement is given by the reciprocal of the number of parallel paths. By this means the current ripple in the primary supply is reduced, and the load current also made more smooth. Typical applications are to DC welding sets, or inverters supplying AC loads. In the latter case the switching sequence can be modified to give an output wave closely following a sinusoidal form.
Patent DE-2558548-A1 (DE)
Title: Sec. extn. of oil by flooding with water - contg. sulphonated ethylene oxide adduct of an alkyl phenol
Inventor: MADDOX JUN JIM
IPC: C09K23/00
Filed: 1975-12-24
Abstract: Sec. extn. of crude oil comprises flooding with water contg. as wetting agent a ring-sulphonated ethylene oxide adduct of an alkyl phenol of formula:- (in which R is 6-18C alkyl; M is metal cation or NH4; x is 1-15; Y is OH or SO3-M+). The wetting agents are resistant to flocculation by the salt content of formation water, and to hydrolysis or loss of solubility or prolonged exposure to temps. above 49 degrees C.
Patent DE-2606354-A1 (DE)
Title: Domestic oil fired air heater - has heater set inside trough to provide cooling airflow and prevent fuel boiling
Inventor: GLIER FRANZ
IPC: F23D5/04
Filed: 1976-02-18
Abstract: The domestic oil-fired air heater without a chimney, has an oil-storage-cum-combustion chamber (2) with a flue (12), air inlet (13) and relief valve (14). The unit is set inside a trough (4). There is a small space between trough and chamber walls, and a larger space between trough and chamber floor, accommodating a syphon (6) in the fuel filler pipe (5). The trough has 3 lobes evenly spaced around its periphery 2 of these are closed at the top and part way down on the inside, the third, through which also runs the filler pipe, is open. All have rows of holes around the top. With the heater in use, hot air rises out of the open lobe and cold air is drawn down through the other 2, causing a cooling flow (P) across the underside of the combustion chamber.
Patent DE-2607760-A1 (DE)
Title: Ski boot sole scraper - made from plastics or light metal including number of scraping edges to remove ice or snow
IPC: A63C5/06
Filed: 1976-02-26
Abstract: Ski boot sole scraper is for the removal of snow and ice sticking to the soles of boots, esp. if skboots. The scraper is produced either from plastics or in light metal and is equipped with a large number of scraping edges (3). The scraper is attachable to the surface of the ski either by a self-adhesive foil (5) and/or using a screw fixing (6). A damping plate may be rigidly connected with the scraper which is also fitted with inclined sliding surfaces (4). The edges of the scraper may be made in any suitable shape for scraping efficiency.
Patent DE-2608800-A1 (DE)
Title: Sol for prodn. of electrical insulators - prepd. by waterproofing reaction of montmorillonite, hectorite, tetrasilicate mica and/or taeniolite
Inventor: DAIMON NOBUTOSHI
IPC: C09D1/04
Filed: 1976-03-03
Abstract: Sol. of ultrafine particles having layered structure is prepd. by water-proofing reaction of (i) montmorillonite, hectorite, tetrasilicate mica and/or taeniolite with (ii) a titanate ester, zirconate ester, silane, titanamide, zirconamide, cationised silicon oil and/or beta-diketone mixed with laurylamine. The silane contains MeO-, EtO- or silanol gps. as well as vinyl-, epoxy-, acrylic- or amino gps. The sol. is used to produce heat- and water-resistant electrically insulating articles and coatings. Products made from sol. are not re-hydrated. Insulating properties are improved. vol. resistance exceeds 1012 ohm. Dielectric strength exceeds 3000 v/0.1 mm. Silicon-treated prods. are water-repellent. Heat-resistance of articles is improved. Reaction allows conversion of a hydrophilic sol. to a hydrophobic sol. with lipophilic properties. Layered materials coupled with silanes can be strongly bonded to synthetic resins, e.g. epoxy-, vinyl-, acrylic-, polyester-, melamine-, urea-, polyethylenephenol- or polypropylene resins.
Patent DE-2612950-A1 (DE)
Title: External gas supply for gas shielded welding - with sliding plug for closing pipe at entry point of gas
Inventor: NAGY ROBERT
IPC: B23K9/29
Filed: 1976-03-26
Abstract: External gas supply means for gas-shielded welding comprises a pipe which is open towards teh welding site and which is mounted interchangeably on a support. The pipe is closed by a sliding plug in the region of entry of the gas stream through the pipe wall via a nozzle. Between the nozzle and the pipe wall is an annular channel which the gas enters and from which the gas passes via holes which are distributed over the circumference of the pipe, into the hollow zone of the pipe. Pref. the gas entering the annular channel is conducted on to a wall region of the annular channel or of the pipe. The arrangement allows precise supply of gas without waste.
Patent DE-2620776-A1 (DE)
Title: 1-Hydroxy benzo 2,3,1-diaza borines - gram negative antibacterials prepd from formyl phenyl boric acid and sulphonic acid hydroazide
Inventor: WERSCH HUBERT MARIA AGNES VAN
IPC: C07F5/02
Filed: 1976-05-11
Abstract: New 1-hydroxybenzo-2, 3, 1-diazaborine derivs. of formula (I): (where R = alkyl or 2-5C alkylene, which may be straight or branched and may be substd. by 1-3 halogens; R' = a pharmaceutically acceptable cation pref. an alkali metal), are antibacterials, esp. active against Gram negative bacteria.
Patent DE-2626833-A1 (DE)
Title: Two-stroke engine with cross-flow cylinder head - has incoming fresh gas mixing with outgoing exhaust gas to form after combustion
Inventor: LEGAT REINHARD
IPC: F02B75/02
Filed: 1976-06-15
Abstract: The engine has a cross flow cylinder head containing one or more inlet and exhaust valves. The fuel contains no lubricating oil and may be directly injected into the combustion chamber. Air or fresh gas is forced into the cylinder from a higj performance super charger via the inlet valve(s) which opens approximately 25 degrees before BDC power stroke. The incoming compressed fresh charge helps to push the exhaust gases out via the exhaust valves or (valves) which opened approximately 55 degrees before piston BDC power stroke. The exhaust valve(s) close 65 degrees after piston BDC. Fresh gases continue to enter the cylinder via the still open inlet valve(s) until the piston reaches 75 degrees. The inlet valve(s) then close and the piston completes the compression. Ignition follows at TDC by HV spark or by the compression ignition process. The exhaust gases pass to an after burner.
Patent DE-2627666-A1 (DE)
Title: Flyer drawing cleaning - having a suction shaft with a control clip to trip the cleaning units
Inventor: HORST HEINRICH TER
IPC: D01H11/00
Filed: 1976-06-19
Abstract: To clean the point where yarn or thread runs through a textile machine, partic. a flyer drawing unit, a suction shaft is provided in the cleaning position. The mobile suction shaft for the successive cleaning positions is fitted with a mounted control clip to place the cleaning units in the release position. The design allows a single cleaning unit to service a number of stations with a concentrated cleaning action which can be fitted easily to older machinery.
Patent DE-2632248-A1 (DE)
Title: IR detector elements prodn. - uses IR sensitive plate on support with parallel channels and thickness reducing process with edge rounding step
Inventor: BLACKMAN MORRIS VICTOR
IPC: H01L31/18
Filed: 1976-07-17
Abstract: Each produced infra-red detector element has a body of infra-red sensitive material with rectangular surface configuration. The body has on one surface spaced contacts of low resistance. The detector body is in the form of a plate secured on a support. In this plate are produced parallel channels to form strip-shaped parts. The thickness of the strips, preferably of cadmium mercury telluride, is reduced by etching and polishing. The curvature of the exposed longitudinal edges is obtained by further parallel channeling in a direction orthogonal to the first channels. Thus a matrix of almost rectangular detector elements are obtained. The contacting is provided by deposition of conductive material. Finally the elements, including their contacts are removed from the support.
Patent DE-2646665-A1 (DE)
Inventor: PAL MILHALY DIPL ING
IPC: B29C48/08
Filed: 1976-10-15
Abstract: The device consists of at least one heatable working roll (1). Each of the working rolls (1) is partially surrounded by a firmly fixed, also heatable shell (2) in such a manner that a tapering gap is formed between the roll (1) and shell (2). To achieve a uniform mixing and guidance of the material so as to achieve a homogeneous product quality, the working roll surface is roughened and the inner surface of the shell (2) facing the roughened working roll surface has, in sequence, a smooth feed zone (4), a roughened mixing zone (6) and a smooth flattening zone (7), each zone extending over the entire shell width. <IMAGE>
Patent DE-2650805-A1 (DE)
Title: Ultrafiltration disc filter appts. - in which stationary disc filters are swept by spiral recycling of concentrate to keep filter surfaces clean
Inventor: ABEL FRIEDRICH
IPC: B01D63/08
Filed: 1976-11-06
Abstract: Appts. comprises filter discs mounted coaxially on a common filtrate collection pipe and contained inside a cylindrical housing. An overflow line comprising a pressure regulating valve returns excess liq. back to the supply tank. The filter discs are all stationary and the discharge duct for the concentrate leaves the filter housing near one end in a tangential direction and is connected through a circulating pipe and return line to a feed duct which re-enters the filter housing also tangentially in the same direction of rotation but at its opposite end. The feed line contains a metering pump having a delivery capacity equal to or only slightly larger than the max. filtrate flow from the appts. The use of stationary filter discs simplifies the layout and construction of the plant of revolving discs. The tangential flow in the same direction at inlet and outlet keeps the filter surfaces clean at very little energy expense. The power demand of the metering pump is low.
Patent DE-2659554-A1 (DE)
Title: Appts. determining material processing characteristics - has two rams with parallel piston displacements applying pre-test and test deformation respectively
Inventor: SAMBROOK RONALD WILLIAM
IPC: G01N3/08
Filed: 1976-12-30
Abstract: Appts. tests the processing behaviour of a visco-elastic material. A first ram is adapted to apply to a test sample a predetermined pre-test deformation. A second ram is adapted to subsequently apply to the test sample an additional test deformation. Both rams are disposed such that their respective piston displacement directions are parallel, whereby both the pre-test and the test deformation are compressive. A control system monitors the load relaxation in the test material. A standard test pellet of a material under investigation is placed centrally on a plate with both rams deactuated. A controlled current is passed through two heating coils for achieving a desired test temp.
Patent DE-2709611-A1 (DE)
Title: Clamp for concrete structure reinforcement - has two clamp pieces secured on side of rigid body with location by single screw
Inventor: HOFF WALTER
IPC: E04G7/02
Filed: 1977-03-05
Abstract: The retaining device is for attachment to a rigid body which is bar-shaped, for a rod unit running crossways to the rigid body. This is partic. for support of reinforcement components in concrete structures. The device has two clamp pieces forming the location point for the rigid body, and which when the body is enclosed between them are tightenable by screws. The clamping pieces (1, 11) are held together on one side of the location (A) of the rigid body (S) by a screw (21) with a nut (23). On the other side of the location the clamping pieces have coupling points (6, 16) with areas which can be joined to each other.
Patent DE-2716893-A1 (DE)
Title: Punch tool for paper profiles - has metal cutting configuration embedded in reinforced plastics or concrete
Inventor: MEIER FRITZ
IPC: C14B5/02
Filed: 1977-04-16
Abstract: The punch tool is used esp. for pressing configurations from flat materials such as plastics sheet, leather, paper and cardboard. A metal cutting profile is embedded into a support. This cutting tool has high strength and the cutters can be made on machines rapidly with varied configuration. The support is made from hardenable material pref. with thermal insulation characteristics. The metal cutting edge (16) is embedded into this material. The embedding material which can be concrete, asbestos cement or epoxy resin, can be reinforced e.g. with glass fibres or quartz sand. The support can also be stiffened at the back by a plate.
Patent DE-2719139-A1 (DE)
Title: Pressure hose for connecting tanker to underwater oil tank - comprises six layers, alternately rubber and textile, with embedded spiral in second rubber layer
Inventor: BANDHOLZ BRUNO
IPC: F16L11/12
Filed: 1977-04-29
Abstract: Pressure hose is composed of the a rubber layer, one of textile, one of rubber in which a tubular spiral is embedded, a further textile layer, and finally an outer rubber cover sheet. Hose is used to connect a tanker vessel to an oil container at the bottom of the sea at a depth of 500 meters.
Patent DE-2720183-A1 (DE)
Title: Spiced honey cake drying system - with separate ducts for low humidity air and hot air
Inventor: RINDERLE KARL
IPC: F26B21/08
Filed: 1977-05-05
Abstract: Spiced honey cake (Lebkuchen) and similar pastry is dried by using processed dry air of low humidity so that the drying process is improved even at low air flow rates; the dry air is also processed with a minimum of energy consumption. This has been achieved by admitting the low-humidity air for dehumidifying and the warm air for heating through separate ducts. Heat is extracted in a heat exchanger from the warm air. The liquid and the gaseous phase of the heat transfer medium in the heat exchanger are matched to the planned working temperature gauge of the warm air and of the low-humidity air.
Patent DE-2720698-A1 (DE)
Title: Universal electromagnet with miniature telescopic armature - has laminated armature in axial hole of coil forming square tube and has laminations linked together by rivet
Inventor: MORGENSTERN EBERHARD
IPC: H01F7/16
Filed: 1977-05-07
Abstract: The electromagnet has a telescopic armature which consists of several sections. It can be operated on single or three phase a.c. and d.c. The dimensions are considerably reduced compared to conventional designs and the armature can travel over a longer distance requiring a smaller force. The magnetic core (2) with a coil (3) is mounted on a base plate (1). The armature (5) is mounted in a hole (4) in the coil, in the form of a square tube. The telescopic effect will produce a greater armature travel. The laminar of the armature are angular and held together by a rivet.
Patent DE-2721650-A1 (DE)
Title: Door lock for coin operated cabin doors - has remote electromechanical control system for closing, allowing opening from inside
Inventor: HACKENBERG ADOLF
IPC: E05B17/10
Filed: 1977-05-13
Abstract: The door jack for stationary and mobile toilet and washing cabinets, has locking mechanism actuated by remote control signalling system. This arrangement is used for doors actuated by insertion of coins. The entry is blocked by a remote control system. The doors can be manually locked on the other side, to be released and opened. The entry side of the cabin is blocked on one side by electromechanical arrangement (7, 10) by remote control. On the exit side, however, all manual functions for locking, releasing and door opening are carried out by an intermediate element (6). This intermediate element (6) has coupling bolt and a spring (9) by means of which the outside door handle (11) is connected to the inside door handle (12) and makes it possible to carry out radial rotation relative to each other.
Patent DE-2724956-A1 (DE)
Title: Eave assembly for tiled roofs - has roof board support beneath tiles and over upper edge of fascia board
Inventor: AARONS RAYMOND JOSEPH
IPC: E04D1/34
Filed: 1977-06-02
Abstract: The roof eave assembly for tiled roofs includes a sarking support running beneath the tiles and over the upper edge of a fascia board to give a firm sloping support for sarking. The support includes a flange in front of the fascia board and spaced apertures to allow fastening to the fascia board and roof rafters. When in use, the eave course of tiles may be secured to the fascia by means of spaced eave tile clips snapped onto the front flange of the sarking support. The sloped portion may have longitudinal ribs for added strength.
Patent DE-2727593-A1 (DE)
Title: Waste heat recovery from space heating air - is combined with solar heat collection using cylindrical cowls containing water pipes
Inventor: SIEMER JUN BERNHARD
IPC: F24S10/70
Filed: 1977-06-20
Abstract: Waste heat contained in the air rising from battery poultry houses can be recovered and combined with a solar heat collector. Cowls in the roof tops of the poultry houses carry coils of water or of other heat carrying agents through which the warm air must pass before it escapes to the atmosphere. The cowls are made of a plastics material which is transparent to solar radiation so that the heat exchangers also act as collectors for the solar energy. The cowls may be cylindrical and may sit on top of square structures which hold the coils carrying the water.
Patent DE-2732234-A1 (DE)
Title: Finish grinding machine for opposite conical seats - has spindle with two grinding wheels and feed-in mechanisms for seats
Inventor: HACK JOHANN
IPC: B24B5/06
Filed: 1977-07-16
Abstract: The internal grinding machine grinds internal conical coaxial seats into a ring. These seats are of opposite taper and their diameter increase towards the ring end faces. The ring is finish ground in one setting by means of an additional grinding wheel and conventional feed arrangement. Each of the two internal conical seats is ground by a separate grinding wheel (5, 6). Both wheels (5, 6) are arranged coaxially side by side on the common grinding spindle (4). The feed-in mechanism carries out two opposite movements of work piece (1) relative to grinding spindle (4). Each feed-in is carried out by a separate drive. The dressing mechanism for each grinding wheel has its own dressing tool which is indepently adjustable.
Patent DE-2737668-A1 (DE)
Title: Composite plate for use in building or toys - has flat I=section with intermediate spaces receiving one layer of adjacent plates
Inventor: PAULKE HEINZ
IPC: A63H33/10
Filed: 1977-08-20
Abstract: The plates are rigid and self supporting. Each plate consists of three parallel layers. The central layer has two hollow spaces(7) which extend from the edge inward. The two hollow spaces are separated from one another by a central ridge(6). The lower layer(5) of the plate can be inserted in the hollow space of another plate. When a flat surface is made, the plates are offset from one another by half the width of a plate.
Patent DE-2744594-A1 (DE)
Title: Safety mounting for sun visor - has open friction clips which engage bar along top of windscreen and loosen on impact
Inventor: WHITE FRED COLLINS
IPC: B60J3/02
Filed: 1977-10-04
Abstract: The sun visor mounting has a horizontal bar(14) along the inside top edge of the windscreen on which the visor is clipped using open type clips(16). The clips are open to the inside of the car so that the visor is loosened when struck from inside the car. The visor is backed by a smaller visor(32) for added protection, with the smaller visor similarly mounted. Both visors are tinted.
Patent DE-2745920-A1 (DE)
Title: Variable effect brake lever - has intermediate link to alter lever pivot and take up slack
Inventor: SCHROETER HANS O
IPC: B60T7/10
Filed: 1977-10-12
Abstract: The brake lever is linked to the cable drive by a roller and an intermediate control lever whose relative setting adjusts the mechanical advantage of the system. The control lever is linked to the brake lever by a ratched for a self correcting mounting. The ratched is set by the reaction force on the brake action. The lever rapidly takes up the brake slack and as the reaction force increases the mechanical advantage alters to enable a large brake force to be applied.
Patent DE-2754186-A1 (DE)
Title: Hand-held circular saw with dust extractor - has socket for pipe to dust bag linked to motor ventilator suction
Inventor: SCHMIDT ALFRED ING GRAD
IPC: B23Q11/00
Filed: 1977-12-06
Abstract: The discharge opening for sawdust and chips in the protective hood of a hand-operated circular saw is attachable to a pipe socket. A suction tube is connected to a separate dust duct. The discharge opening (10) is set on the side of the hood (2) next to the drive motor (1). At this point is an attachment pipe socket (8) for a dust bag (9), which is connectable to the air suction circuit of the motor ventilator. The bag may be fitted with a slide fastener.
Patent DE-2755444-A1 (DE)
Title: Gas-cooled high-temp. reactor with separate heat exchangers - in independent prestressed vessels mounted on extended base of reactor vessel
Inventor: BARCHEWITZ EKKEHARD DIPL ING
IPC: G21C13/00
Filed: 1977-12-13
Abstract: A nuclear power plant comprises a gas-cooled, high temp reactor surrounded by a number of heat exchangers connected by radial gas ducts to the reactor. The reactor itself is contained within a prestressed pressure vessel, and each of the heat exchangers is contained in a separate prestressed pressure vessel. The reactor pressure vessel widens out at its base into a type of annular flange constituting a pedestal on which the heat exchanger vessel are mounted in a pitch circle concentric to the reactor centre. The radial hot gas ducts and vertical connecting ducts from the reactor to the heat exchangers pass through this pedestal and the cool gas returns from the heat exchangers through annula ducts outside the hot gas ducts. The reactor pressure vessel and each of the heat exchanger vessels is horizontally prestressed by wound cables or wires and is vertically prestressed by vertical tendons. Some of these vertical tendons also hold the heat exchanger vessels down onto the pedestal. The connections between the individual heat exchanger pressure vessels and the main reactor pressure vessel a are provided in a simple and economic manner. After a reactor has been constructed, different types of components can be mounted around it, e.g. steam generators and tube crackers, without modification to the reactor itself.
Patent DE-2758360-A1 (DE)
Title: Cold drawing of bar etc. without lubrication - using high amplitude ultrasonic vibrations applied by resonant vibrator behind die
IPC: B21C3/14
Filed: 1977-12-27
Abstract: Ultra-sonic vibrations are applied to the workpiece of sufficient amplitude to cause plastic deformation along its length during the vibration cycle. Behind the die through which the workpiece is pulled in an emitter having a central passage for the rod. A transducer applies vibrations at right angles to the direction of drawing. The emitter is made to resonate by applying a frequency appropriate to its length and the speed of sound through it. The two longitudinal parts of the emitter are multiples of the resonant wavelength, and a fixing point is provided on a vibration node. Cooling air is fed through a passage between the fixing pt. and the die, leading into the annular space between emitter and die.