baber/WOPTO huggingface dataset:
Patent DE-2325739-A1 (DE)
Title: Plaster of paris mixt. with delayed setting times - by addn. of poly-carboxylic acid esp. cyclohexane-hexacarboxylic acid
Inventor: SCHMIDT-DUNKER MANFRED DIPL CH
IPC: C04B24/04
Filed: 1973-05-21
Abstract: The acids used have a min. of four carboxyl radicals in the mol; pref. acids are: ethane-1,1,2,2-tetracarboxylic acid; butane-1,2,2,3,4-pentacarboxylic acid; cyclopentane-1,2,3, 4-tetracarboxylic acid; tetrahydrofuran-2,3,4,5-tetracarboxylic acid; and cyclohexane-hexacarboxylic acid; the water-sol. salts of these acids can also be used. An amt. of 0.01-3 wt.% of one of these acids is added to the mixt. of plaster and water. Plaster mixes so treated remain workable for up to 24 hours.
Patent DE-2329369-A1 (DE)
Title: Rotary piston inner seal - has two scraper rings in single groove, spring pressed against housing wall
Inventor: RUF MAX
IPC: F01C19/08
Filed: 1973-06-08
Abstract: Inner seal for the piston of a rotary piston engine of the trochoid type, comprises two radial superimposed scraper rings, which are arranged jointly axially movable in a ring groove in the piston face side, and are pressed against the housing side wall by a spring ring. The radial outer scraper ring has a "U" or "L" shaped cross section, and is sealed against a wall of the ring groove by a flexible ring. The radial inner scraper ring is made of strip metal and provided with inlets on alternating opposing sides, and recesses which are so formed that they ensure the axial pressing together of this scraper ring. Between the spring lying at the base of the groove and the scraper rings, a support ring is fitted, and the radial inner scraper ring has a larger axial width in the non-compressed state than the outer scraper ring. The radial inner scraper ring is made from hardened spring steel plate.
Patent DE-2335681-A1 (DE)
Title: Round storage silo for bulk materials - has central material feed with circular discharge equipment supported top and bottom by guide rails
Inventor: HERMANNS WILHELM
IPC: B65G65/06
Filed: 1973-07-13
Abstract: Bulk materials, such as cement, are supplied to the silo central feed opening by a conveyor system. Within the silo is a distributing scraper chain conveyor mounted on an inclined arm, the top end of which is trolley mounted on rollers. The bottom end of the arm carries a drive motor and a wheel running on a circular track. The complete scraper chain conveyor can be rotated about the centre of the silo so that an even discharge distribution of material is maintained. The scraper chain discharges into the centre region and out through a discharge duct.
Patent DE-2343512-A1 (DE)
Title: Pump hammering detection in electrically-driven machines - by detecting fluctuations of motor current, and with motor accordingly being switched off
Inventor: MULEY HANS
IPC: F04D27/02
Filed: 1973-08-29
Abstract: Pump hammering is detected in radial or axial compression machines with electrical drive motors. The resulting periodic impulsive drive motor current fluctuations are detected, and are used to switch off the motor with in a given period of time. Preferably the switch-off order is originated when 2 pump hammers occur within the time period, which is 15-30 sec. Appts. includes a current rise speed gauge, a logic with counter, a timer, and a controller. A current transducer with a following load resistor, a voltage converter, a rectifier and a differential amplifier followed by an analog-to-digital converter are included in the gauge.
Patent DE-2344715-A1 (DE)
Title: Non-jamming elastic cylindrical core - for prodn. of bores or cylindrical recesses in resin castings
Inventor: DOERGE ROLF
IPC: B29C33/48
Filed: 1973-09-05
Abstract: In a straight hollow cylindrical core for use in the prodn. of cylindrical recesses or passages in plastic, partic. casting resin, casting, (a) the hollow cylinder (I) is made of one piece of elastic matl., esp. sheet steel, and has a dia. somewhat smaller than that of the cylindrical recess or passage to be provided; (b) the peripheral surface of (I) has a continuous longitudinal slot, in which an exchangeable elastic sealing element, esp. of natural or synthetic rubber, can be inserted and clamped to adapt the dia. of (I) to the design dia. of recess or passage in the casting and to avoid unacceptable shrinkage stresses therein. Arrangement is free from the tendency of conventional two-part hollow cores to jam along the plane of the joint due to unevenness in the surface of the casting. A single cylinder can be used as a core over a range of diameters of recesses or passages, by using a series of sealing elements of different thicknesses.
Patent DE-2359196-A1 (DE)
Title: Building heating or cooling plant - has cavity completely surrounding building and connected in circuit with heat pump
Inventor: ULLRICH HEINRICH DIPL ING
IPC: F25B29/00
Filed: 1973-11-28
Abstract: Heating or cooling plant for buildings has a closed cavity which surrounds the building as far as possible on all sides, and is connected with the heat exchanger of a heat pump at a suitable place, pref. in the upper part of the building and connected as an evaporator during heating operation, to form a closed circuit through which the heat transfer medium circulates and it is directed to given surfaces of the building. Preferably the medium is air. The cavity is formed by the outer walls and a conventional facade, and/or by the inner and outer roof skin. Practical application of the previous patent is extended.
Patent DE-2359229-A1 (DE)
Title: Shopping bag with telescopic frame - has readily extended wheels and telescopic handle held within bag
IPC: A45C5/14
Filed: 1973-11-28
Abstract: The frame for forming a trolley type support for a shopping bag or a suitcase is extended readily with a few manual operations. The frame is sunk into the bag while not in use into a space between the inner lining and the outside wall. The bag made from leather, plastics or fabric has an internal frame which is covered with lining material. The wheels with their supports rest in pockets which are covered with sliding clasp link locks. The wheels are pulled out by grips. The telescopic handle is extended by opening the sliding clasp link lock and the trolley handle is pulled out from the telescopic element holding the tubes. The wheel supports can be tilted so that the bag can rest on its flat base if required.
Patent DE-2364671-A1 (DE)
Title: Electric hair-dryer - has flexible tapering nozzle attached to hot air outlet opening of housing
Inventor: HUEBNER OTTO
IPC: A45D20/10
Filed: 1973-12-24
Abstract: Electric hair-dryer has an axial fan and a heater aligned with the airstream in a housing with an outlet opening for hot air; a nozzle for thin, flexible material, impermeable to air, is fitted to the opening and tapers in the direction of flow. Preferably the nozzle is frustroconical, and is of plastics foil or a fabric, and has a reinforcing and shaping ring around its outlet opening; the nozzle may consist of two layers, interconnected at multiple points or lines, and forming chambers or beads between them when filled from the fan air stream by ram action. A strong enough air stream can be produced from a slow-running fan motor.
Patent DE-2405046-A1 (DE)
Title: Rear-ventilated cladded external concrete wall casing - with depressions forming ventilation channels in outer side
Inventor: CZIESIELSKI ERICH DR ING
IPC: E04F13/00
Filed: 1974-02-02
Abstract: The purpose is to eliminate the need for lathing on a sheath concrete wall with form blocks of a material which can be nailed, such as chipboard-concrete, where porosity may not be suitable for sufficient compensation for atmospheric conditions, and where rear ventilation behind cladding panels is required. Adequate ventilating channels are provided in the form of recesses set in the outer side of the sheathing body, and these are pref. arranged so as to be joined together when the blocks are interconnected. The panels can be fixed directly onto the wall to be cladded, or its sheathing, without lathing in between.
Patent DE-2405383-A1 (DE)
Title: Reed relay bobbin for automatic bifilar winding - has double thread wire guide grooves with displaced wire inputs-outputs
Inventor: PETERMANN HANS
IPC: H01H50/44
Filed: 1974-02-05
Abstract: The bobbin for a Reed relay with several single layer windings, esp. for bifilar connected windings, is characterised by the bobbin having multiple thread guide grooves along its axial length in which the winding wire runs. The guide grooves may have the form of a double thread which has two wire inputs displaced by 180 deg. and wire outputs for the two windings. The two faces of the bobbin have two slots each which extend to the wire inputs/outputs of the guide grooves. The bobbin also has support areas for resting on a conductor plate with openings through which the contact making wire beginnings and/or wire ends are led serving at the same time for fixing of the bobbin to the conductor plate.
Patent DE-2415379-A1 (DE)
Title: Carbon arc lamp electrode - having protective coating to reduce operating temp. and oxidn. increasing electrode life
Inventor: SUGA SHIGERU
IPC: H05B7/085
Filed: 1974-03-29
Abstract: A carbon electrode comprises (a) a C bar electrode having a discharge tip at one end and a holding section at the other, (b) a coating of Al or predominantly Al-alloy on all peripheral surfaces of the bar except the discharge tip and (c) a second coating of Al2O3 and Si oxide on all peripheral surfaces except the discharge tip and holding end. The electrodes are useful for sunshine or ultra-violet carbon arc lamps used for fading and weathering tests on paints or fabrics. Electrodes life is increased by up to 20%. As the C is consumed and Al melts, the molten Al combines with the oxide and forms a vitreous ceramic which descends under gravity so no molten metal coats the lamp envelope and reduces transmittance. The exhaust contains no toxic materials. The ultraviolet output is about the same as that of lamps using conventional C electrodes, but infra-red output is reduced.
Patent DE-2426660-A1 (DE)
Title: Membrane type pressure indicator - safety arrgt. includes spring to disconnect spindle from indicator
Inventor: BRAUSER HEINZ
IPC: G01L19/06
Filed: 1974-06-01
Abstract: A membrane valve in a flow or pressure measuring system, where a dangerous fluid may be circulating, has the membrane mounted on a head with an actuator spindle passing through the middle, connected to an indicator. This includes a spring, which when the diaphragm breaks, blocks the passage of process materials into the hydraulic pipe system and thus to the pressure gauge, or into the ambient air.
Patent DE-2428199-A1 (DE)
Title: Azo pigments from 2-alkyl sulphonyl 4-nitroaniline - as diazo component, coupled with 2,4-diamino 6-hydroxy pyrimidine
Inventor: DIMROTH PETER DIPL CHEM DR
IPC: C09B29/52
Filed: 1974-06-11
Abstract: Novel azo pigments of formula (I) (in which R is methyl or ethyl), are useful in colouring auto and industrial lacquers, plastics, printing inks. spinning compsns, etc. in orange shades. (I) gives brilliant full shades with very good light- and weather-fastness and high covering power. (I) are obtd. by diasotisation of cpd. (II) followed by coupling with (III).
Patent DE-2438623-A1 (DE)
Title: Sepn. of isotopes, e.g. uranium-235 from uranium-238 - using inhomogeneous magnetic,electric and/or electromagnetic fields
Inventor: BERGMANN WILFRIED H DR
IPC: B01D59/48
Filed: 1974-08-12
Abstract: In a process for the enrichment and/or sepn. of isotopes, electric, magnetic, and/or electromagnetic fields, which are inhomogeneous w.r.t. time and/or position are imposed upon a corresponding flow of the isotopes, e.g. from a nozzle in such a way that at least one of the nuclide species (or its molecules or chemical cpds.) to be enriched or sepd. in this flow is caused by the fields to have an additional motion transverse to the direction of flow so that thus species is strongly enriched on the side of the flow corresp. to the transverse motion and can be sepd. from the remainder of the flow by suitable collecting devices (such as nozzles). E.g. for sepn. of ureanium isotopes for nuclear power. A high degree of sepn. is achieved in a single stage.
Patent DE-2438827-A1 (DE)
Title: Locking rod for cellar light shaft grill - is held by bolts with round heads and locking nuts
Inventor: LOEFFLER HELMUT
IPC: E04C2/42
Filed: 1974-08-13
Abstract: The locking rod is used for locking cellar light shaft covering grillages. This rod ensures that unauthorised persons cannot enter the cellar by lifting up the grill. The key rod is galvanised and provided with holes and it is pushed in a transverse direction under the frame of the grillage and bolted. These special bolts are positioned and screwed into the grill from above. The lower end of a bolt is secured on the underside of this rod by a nut and locking nut. These bolts cannot be released at the top because their heads and round anc cannot be gripped.
Patent DE-2442940-A1 (DE)
Title: Hot air baking oven with recycling and reheating - filter collects solid matter and prevents burning grease fumes
IPC: F24C15/32
Filed: 1974-09-07
Abstract: On an inner wall of an hot air baking oven, a filter element is arranged in front of the suction inlet of the built in fan. The filter is of the metal baffle type, is pressed or screwed into position by hand and has a grease collector. Of univeral application, commercially or domestically where a variety of uses may give rise to vaporised grease and floating particles of solid matter. The filter includes a grease collecting gutter and can be easily removed for cleaning.
Patent DE-2443174-A1 (DE)
Title: Plastis drain with baffle - permitting easy cleaning by removal of baffle
Inventor: IDSAETER ERIC
IPC: E03F5/10
Filed: 1974-09-10
Abstract: A street drain has an inlet chamber, outlet and baffle plate; the inlet chamber wall has >=2 long and pref. vertical guides at the opposite sides off the hole to the outlet; these guides hold the edges of a baffle plate which is fixed in above the outlet hole, extend above that hole and at least over one side of and beneath it; the baffle can be removed for cleaning and when necessary for cleaning out a collecting chamber in the outlet if the drain has a wall forming such a chamber. The baffle and collecting chamber are easily cleaned, the drain is made of polymer which is easily bonded and has good thermal resistance, e.g. the inlet chamber and outlet are made of polystyrene, the baffle of polypropylene.
Patent DE-2453406-A1 (DE)
Title: Non-inflammable adhesive compsn - contg polyvinyl methyl ether or natural resin dissolved in fluoro-chloro-hydrocarbon
Inventor: HEINRICH BERTHOLD
IPC: C09J129/10
Filed: 1974-11-11
Abstract: Adhesive compsn. comprises a polyvinylmethyl ether or natural resin and/or their derivs. in a fluorochlorohydrocarbon solvent. Pref. 20-75% esp. 30-50% of polyvinylmethyl ether is used and the compsn. pref. contains a mineral filler to improve the film viscosity and heat-resistance. The compsns. are esp. useful for bonding plastics sheets to mineral substrate and may be used on dusty and damp surfaces. They are non-inflammable and not hazardous to health.
Patent DE-2453769-A1 (DE)
Title: Protector for urinating into bedpan - can be disposed after use preventing soiling of bedclothes
IPC: A61G9/00
Filed: 1974-11-13
Abstract: Protective device for person urinating into bedpan comprises a thin-walled cover (2) which is adapted in shape to the genitals and of which the lower region is disposed adjacent to the edge (3) of the bedpan (1) while the upper region is disposed adjacent to the abdomen of the person. Pref. the cover is in the shape of a curved shield, is made of water-soluble material, and has in its lower region a recess (5) forming a projection (6) which rests on the edge of the bedpan. In its upper region may be self-adhesive surfaces for fixing it to the abdomen.
Patent DE-2454728-A1 (DE)
Title: (Substd. imidazolyl-2-alkyl)-heteroarylsulphide prepn. - and intermediate substd. imidazoles and heteroaryloxy cpds.
Inventor: WINKELMANN ERHARDT DR
IPC: C07D401/12
Filed: 1974-11-15
Abstract: A new process is disclosed for prepg. (1-alkyl-5-nitroimidazolyl-2-alkyl)-heteroaryl-sulphides of formula (I): (where A is -S-R3; R' is Me or Et, R2 is H or Me and R3 is a heterocyclic ring system, esp. a pyridine ring opt. substd. by halogen, -CN or -NO2; or an oxazole, thiazole, oxadiazole, thiadiazole, oxatriazole or thiatriazole ring, opt. substd. by Me, CN, NO2 or amino; pyrazole, imidazole, triazole or tetrazole ring, opt. substd. by Me, Ph, CN or NO2 or amino; a pyrimidine, pyridazine or pyrazine ring, opt. substd. by halogen, CN, NO2, Me or MeO; or a triazine ring opt. substd. by Me or MeO). Intermediate 1-alkyl-2-oxyalkyl-5-nitroimidazoles of formula XVI (corresp. to (I) where A is -O-Y) and heteroaryloxy cpds. YOR3 (XIX) are also new (where Y is (IV) to (XIII)): (XIII); and R4 is 1-8C alkyl.
Patent DE-2454922-A1 (DE)
Title: Stapler and staples for textiles - have half-moon shaped groove and points respectively preventing damage to material
Inventor: BAECKMANN REINHARD ING GRAD
IPC: B25C5/02
Filed: 1974-11-20
Abstract: The textile staple is U-shape with needle-like points (6, 7) at its free ends which lie mirror-symmetrical relative to the line of symmetry (8) of the staple and symmetrical to the longitudinal centre line (9) of the web of the staple. Each needle-like point thereby lies at the point of intersection of the extension of the facing or remote sides of the opposite arms (1, 2) and a half-moon arc from the other sides of the arms to the extended side (10, 11) of the arm. During the closing process the points fit on the groove in the stapler so that they can be bent over more easily in the required direction and surface pressure does not arise which could lead to the formation of burrs and thus to the damage of the textile material.
Patent DE-2455657-A1 (DE)
Title: Hot body measurement device - uses wheatstone bridge network including electrolytic integrating cell and variable resistor
Inventor: KAYSER-HEROLD UWE
IPC: G01K17/08
Filed: 1974-11-25
Abstract: The heat measuring device utilises a Wheatstone Bridge operated by a battery power supply (B). Two arms of the bridge consist of fixed resistors (R1, R2) and another two of semiconductor resistors (HL1, HL2). Across the diagonal of the bridge opposite to that of the battery is connected is an electrolytic cell incorporating a variable resistor (RV) and a current integrator (I). The hot body whose temperature is to be assessed is connected to one of the semiconductor resistors (HL1), whereas the other remains at ambient temperature. The integrator measures the time integral of temperature variations from ambient of the hot body.
Patent DE-2459717-A1 (DE)
Title: Auxiliary engine for compression ignition engine starting - allows at low temperatures independent use of normal starter
IPC: F02N15/06
Filed: 1974-12-18
Abstract: A small two stroke spark engine (9) included in the installation has its crankshaft coupled through an overrun drive (14) to the shaft of the starter motor (6), which has a conventional pinion (8) with inertia engagement to the starter ring (4) of the main compression igniton engine (1). Under favourable ambient conditions, the main engine is started by the normal starter motor (6), which may be electric or compressed air, and the over-run coupling (14) leaves the auxiliary engine stationary. Under severe cold conditions, the auxiliary engine is first started; when its speed is raised, the pinion (8) engaged to start the main engine. An alternative layout comprises a smaller auxiliary engine coupled axially to the conventional starter through a clutch.
Patent DE-2459822-A1 (DE)
Title: Pressure jet cleaning of honing stones - has spray nozzle placed above cylindrical workpiece and stationary stones
Inventor: HOELPER REINER DR ING
IPC: B24B33/10
Filed: 1974-12-18
Abstract: The workpieces in the honing arrangement are supported on two sets of rollers which are rotated in the same direction. The axes of the rollers are placed at a slight angle to one another, so that the workpieces are given a longitudinal as well as a rotary movement. The workpieces pass under honing stones which rest on the workpieces and which carry out an oscillating movement in the longitudinal direction. Spray jets are mounted underneath the honing stones and apply a jet of high pressure fluid to the cutting surface of the stone to clean the surface of the stones and ensure that a good surface quality is obtained with the stones.
Patent DE-2460377-A1 (DE)
Title: Recording appts for conveyor belt monitoring - pen recorder produces several wave forms on continuous paper strip
Inventor: HITZLER WALTER
IPC: G07C3/12
Filed: 1974-12-20
Abstract: A simplified conveyor belt item recording apparatus, which can count the total number of items produced in a given time, the number of items at any time on a given length of belt and some other parametres, is presented. The apparatus consists basically of a pen recorder which records several standard type waveforms or a continuous paper strip. One of these represents the total item count and another, the number of items on a stretch of conveyor belt. This is achieved by driving a stepping motor forward by one step for every detected item at one monitoring point and backwards by one step for every detected item at another monitoring point. Other graps are possible to represent disturbance and so on. A timing device is also included in the apparatus.
Patent DE-2461573-A1 (DE)
Title: Calcining of calcium hydroxide - as moist granules or briquettes using a covering layer of limestone chips
Inventor: RABOWSKY HANS DIPL CHEM DR
IPC: C01B32/942
Filed: 1974-12-27
Abstract: In the calcination of mouldings used as reacting mixture components in electro-thermal carbide furnaces and obtained by granulating or briquetting of moist calcium hydroxide, by (a) transporting the mouldings through a heating zone on a belt, high temps. being produced by burning gases above the belt and waste gases being drawn away below the belt, (b) covering the calcium hydroxide mouldings present on the belt with a covering layer and transporting them directly through the heating zone without pre-drying, generally as disclosed in DT 2407506, the improvement whereby the covering material is applied to the calcium hydroxide mouldings in such a way that the surface of the covering layer has a corrugated profile. Solves the problem of non-uniform metering of the covering material particularly limestone chips, which can lead to the suction belt being damaged by exposure to excessively high temperatures. A calcined product of improved quality is obtained with an increase in throughput.
Patent DE-2502586-A1 (DE)
Title: Single spindle pump stator production system - has former ring and clearing mandrel rotated during pressing operation
Inventor: KOZUSNIK KAREL
IPC: B21D22/26
Filed: 1975-01-23
Abstract: The system is for production of stators for uni-spindle pumps from a tubular type semi-finished product by means of a clearing mandrel in the form of a twin entry spindle. The cleaning mandrel and the tubular semi finished product are pressed jointly through a former ring. At least one of the forming elements consists of a cleaning mandrel and a former ring given an additional rotary motion in order to help to prevent irregularities in the surface of the stator being formed by the pressing process.