baber/WOPTO huggingface dataset:
Patent DE-2412155-A1 (DE)
Title: Switching system for motorised drive of roller blinds - has a limit switch with actuating lever and mercury switching tube(s) on rocker arm
Inventor: FROHMUELLER KLAUS
IPC: H01H29/14
Filed: 1974-03-14
Abstract: The electric motor driven roller blind system has a limit switch for cutting off the drive in the blind roller position, the switch being actuated by a lever whose free arm abuts under prestress the pulling member of the blind. The limit switch has one or several mercury switching tubes on a rocker arm, one such arm being provided for the lower and upper limit switch position. On attaining the upper or the lower blind end position one rocker arm is tiltable either directly by components of the blind or the drive, or by means of additional actuators under influence of such blind control elements. Preferably the limit switch has a single mercury switching tube for both end positions, the mercury switch having three electrodes.
Patent DE-2414935-A1 (DE)
Title: Rotary piston engine for conveying non-compressible media - operates without the use of non-return valves
Inventor: FRITZSCHE ALBERT DR ING
IPC: F01C1/10
Filed: 1974-03-28
Abstract: Several discharge openings are arranged in series along the inner envelope curve of the trochoid from one radial seal to the next radial seal, and these are connected to special feed pipes. The separating walls between the individual outlet openings are smaller than the width of the opening arranged on the face of the piston. This arrangement enables the conveying mass to be split into different separate paths. The trochoid envelope curve discharge openings correspond to the required partial flow which ultimately forms the total discharge volume.
Patent DE-2415355-A1 (DE)
Title: Defrosting wrapped perishable foods - from freezing to cooled display temperature without condensate forming on wrapper
Inventor: ADLER JINDRICH HEINZ
IPC: A23L3/365
Filed: 1974-03-29
Abstract: Wrapped dairy prods, delicatessen items such as smoked salmon, sliced beef, fish fillets etc., are stored at freezing temps. then rapidly heated up to a temp. suitable for refrigerated storage/display, i.e. about 4.4 degrees C. The cabinet in which this defrosting process takes place is thermostatically controlled to prevent the temp. of the prod. going above the refrigerated limit at any time; simultaneously, the air circulating in the cabinet is continually dehumidified so that moisture does not form on the prod. wrapper as the temp. rises quickly.
Patent DE-2418620-A1 (DE)
Title: Pressure point coupling for keyboard instruments - with recording potential, using direct mechanical coupling or electro-magnetic circuit with relay
Inventor: EICKHORST ERWIN
IPC: G10B3/10
Filed: 1974-04-18
Abstract: The coupling is designed for keyboard instruments such as organs or accordians which are either mechanically or electrically operated and with either one or two keyboards. The pressure point coupling has three key positions, rest position, normal strike, and a position after a pressure point is overcome when one or more keys are activated. This may be done mechanically by a direct connection with a second keyboard below the first or closing an electromagnetic circuit with a relay. An improved version uses relays with several poles to activate a number of keys in succession. The invention can also be used with one keyboard only by using a system of levers, e.g. Hammond Organ. (R.T.M).
Patent DE-2422522-A1 (DE)
Title: Under concrete bed production for water-filled trenches - uses immersion chamber sunk to shortly above trench bottom with ballast
Inventor: WEISS PAUL
IPC: E02D27/52
Filed: 1974-05-09
Abstract: Production of an under concrete bed in trenches filled with ground water or in other waterways for pipe lines of prefabricated concrete pipes where a long immersion chamber corresponding at its base to the pipe cross-section, is sunk to shortly above the trench bottom (3), is levelled by depositing a ballast body and anchored. Finally the space between immersion chamber and a trench bottom is filled with concrete. To carry out this procedure, the tubular immersion chamber (6) whose floor corresponds to the cross-section of the concrete tubes, has a shaft (8) at each end projecting vertically upwards above the water level, and which has sufficient ballast to correspond to the floating condition.
Patent DE-2423446-A1 (DE)
Title: Toy wheel with central bore - fitted with guide grooves for insertion of parts using a detachable clamp attachment
Inventor: SUTTER SAMUEL
IPC: A63H33/06
Filed: 1974-05-14
Abstract: Toy wheel with a central bore for an axle. Divided over the wheels circumference there are on at least one face surface several guide grooves open towards the edge of the circumference of the wheel and extending radially for the detachable clamp attachment of insertable parts. The guide grooves are limited radially outwards by stays which end at varying distances from the central bore. The guide grooves are arranged on both surfaces of the wheel forming pairs between which the common stay is located. The wheel surfaces are fitted with recesses and the guide grooves are formed by ribs.
Patent DE-2424237-A1 (DE)
Title: Peripheral charging of a flame-chamber furnace - using peripheral chute leading to oscillating ring outlet
Inventor: WOTSCHKE JOHANNES DR ING
IPC: C03B3/00
Filed: 1974-05-18
Abstract: The parent patents describe a round, flame-chamber furnace. In the present invention, a conical charging chute leading to a rotary, and pref. oscillating, ring outlet shell, is used for the peripheral charging of the furnace. In the pref. device, the angle at which the chute slopes downwards w.r.t. the horizontal is larger than the angle of the deflection surface and vibration may be used to assist material flow. The air required for combustion is pref. used to form an air cushion over the outlet shell to reduce abrasion by the charge and the shell is pref. fitted with scraper teeth to prevent material baking onto it. Provides uniform feeding of the charge into the reaction chamber.
Patent DE-2432707-A1 (DE)
Title: Wing mirror with safety flyback feature - with jointed plastic coupling section with locating pegs under spring pressure
Inventor: SCHULD HELMUT
IPC: B60R1/076
Filed: 1974-07-08
Abstract: The plastic moulded wing mirror housing has an intermediate plastic section (12) jointed between the mirror housing and the mounting foot. Adjacent faces of the intermediate section and the housing/mounting are profiled to fit into each other. A spring between the housing and the mounting pulls the joints together. When struck the joint can give in either direction and is easily reset. It is simple to produce with the housing, intermediate joint and mounting foot moulded in one process. The plastics sections may be separate or integral being joined along their folding joints by a thin web.
Patent DE-2433555-A1 (DE)
Title: Safety cushion non-contact ignition - uses transformer principle to produce electrical impulse igniting cushion gas generator
Inventor: POSER ERHARD DIPL ING
IPC: B60R16/02
Filed: 1974-07-12
Abstract: The switch provides an increase in reliability of operation combined with a simplification of manufacture. The principle of operation is that a short electrical impulse of a few milliseconds duration is generated by a movement of coaxial primary and secondary coils. The primary coil (1, 2) is fixed to the steering column (5) and the secondary coil is fixed to the steering wheel or column (6). To avoid fire risk the primary circuit has a fuse wire. The components used are not manufactured to close tolerances and are easily produced. The switch operates as soon as the impact force starts to be absorbed by the steering column.
Patent DE-2440623-A1 (DE)
Title: Medicament inhaler for powders or liquids - with venturi-tube shaped housing
Inventor: ROSSKAMP GUENTER DR
IPC: A61M15/00
Filed: 1974-08-22
Abstract: Medicament inhaler, partic. for ailments of the respiratory tract e.g. bronchial asthma etc. comprising a Venturi tube shaped housing and a component open at both ends for the reception of the medicament, one opening being arranged upstream of the diffuser section of the Venturi-shaped housing. Has no moving parts and an be adapted for use with micronised or liq. medicaments as well as normally powdered material. The glass inhaler comprises an inlet section, a component of restricted diameter and a diffuser type section and may be fabricated in any suitable inert material, partic. glass or plastic.
Patent DE-2441886-A1 (DE)
Title: Gas supply esp for welding is automatically switched over - to new source by air operated valves with solenoid actuation
Inventor: LOOSE JUERGEN ING GRAD
IPC: F17C13/04
Filed: 1974-09-02
Abstract: A switching-over and monitoring device for a central gas supply plant, in which a medium pressure supply line is alternately connected to two batteries of gas bottles by a power-operated cut-off valve for each battery, as a function of the readings of a gas pressure monitor, is arranged as follows: two electromagnetically pulse-operated change-over valves each comprise a slide operated by an armature and two magnetic coils and regulate a flow of control compressed air to open and close the cut-off valves; a contact manometer connected to the medium pressure supply line transmits signals to a switching device which, when this contact manometer and/or one of the gas pressure monitors responds, supplies a pulse to coils of the two valves. Pref. there is a throttle in the air supplied to each shut-off valve with a non-return valve in parallel to it. Esp. for medium sized and large supply networks in industry for supplying gas to autogenous welding systems. The layout is simple and compact and provides a high degree of reliability for the gas supply.
Patent DE-2444153-A1 (DE)
Title: Thermal neutralisation of sewage sludge and sapropel - using reduced amount of quicklime with same hydrating reaction
Inventor: KRIEGER HEINZ
IPC: C02F11/18
Filed: 1974-09-16
Abstract: Thermal neutralisation of industrial waste waters, sewage sludge and sapropel is carried out by preheating the sludge using the heat of reaction from the quickline hydrating process, so that less lime needs to be added for the subsequent hydrating process. The hydrated sludge after thermal neutralisation with quicklime may be used as fern-free calcium hydroxide for fertilisation of fields and forestry land, or for soil stabilisation on certain kinds of terrain. The amount of time which the sludge remains in the settling tank of the clarifying plant is rediced and so the charged fed to the clarifying plant can be correspondingly increased.
Patent DE-2445302-A1 (DE)
Title: Electrical impregnation varnish for high temp - contg. polyester-imides with alkyl side groups combined with polyisocyanates
Inventor: JANSSEN HARALD DR
IPC: H01B3/30
Filed: 1974-09-21
Abstract: Heat-hardenable, storage resistant impregnating varnish for electric insulation with long term heat-resistance of min. 165 degrees C., toughness and flexibility, made from satd. branched polyester-imides with hydroxyl end groups, arising from multivalent aromatic carboxylic acids, including five membered cyclic acid-anhydrides, and a group for ester formation, plus polyhydric alcohols and diamines, and possibly with phenol- and/or melamine- formaldehyde resins in an atm. of 5-50, esp. 10-30% plus 0.05-5%, esp. 0.1-1% metal salts of organic acids and/or tertiary amines each amt. w.r.t. solid resin and used as drying accelerators together with 60-70% solvents contains polyester imides (I) of aliphatic, cyclo-aliphatic or aromatic diamines where on one or more C-atoms is an alkyl side group with 1-5C atoms in combination with (w.r.t. the OH groups) equiv. amts. of aromatic polyisocyanates where the latter groups are blocked with phenols, (I) being soluble in the usual organic solvents. The varnish meets modern high temp. requirements. e.g. w.r.t. electric motors.
Patent DE-2448992-A1 (DE)
Title: Electric arc furnace current supply - through intermediated busbar array with middle phase crossover and delta connection
Inventor: SCHAWORONKOW KONSTANTIN PAWLOW
IPC: H05B7/02
Filed: 1974-10-15
Abstract: The current supply to an arc melting furnace with electrodes in a star connection has an intermediate bus bar array, subdivided into half phases, Start and end of the middle phase is crossed over relative to the adjacent phases in this array which links the secondary windings of the furnace transformer to the flexible furnace cables. A delta connection is effected between this crossover and the flexible cable junction. This reduces the inductive and ohmic voltage drop by 15%, the ohmic losses are reduced by a factor of 1.3 for the same conductors and voltages. The asymmetry of the inductive resistance can be completely eliminated. The low-tension connectors of the transformer are jointed to an intermediate bus bar array where start and end of the phase S are crossed over. Cross connections in pairs create a delta connection which divides each phase, into two half phases which are arranged between the adjacent half phases with a current phase shift of 120 degrees. Flexible cables are jointed by cable lugs to the tubes leading to the electrode holders.
Patent DE-2457786-A1 (DE)
Title: Dissiispensing nozzle for adhesive bottle - has internally located plug which is used prevent blockage of nozzle by dried adhesive
Inventor: RODER EBERHARD
IPC: B65D47/24
Filed: 1974-12-06
Abstract: A dispensing bottle for adhesive or similar substances has an offset tapered outlet nozzle (7). It can be rotated on its location on the bottle (1) without moving axially. A central sleeve (3) is also located on the bottle such that it is prevented from rotational motion. A plug (11) closes the exit hole (10) when the nozzle hole is in line with the plug. By rotating the nozzle (7), the plug (11) is drawn out of the nozzle hole since its attached end remains stationary on the central sleeve. Thus when the bottle is opened no dried up adhesive blocks the outlet nozzle hole.
Patent DE-2458775-A1 (DE)
Title: Insulated metal conduit with hot melt adhesive intermediate layer - contg. ethylene vinyl acetate copolymer, or polyamide or polyester, for use at high temps
Inventor: PELZ DIETHART
IPC: B29C48/151
Filed: 1974-12-12
Abstract: An insulated conduit consist of (1) a metal pipe, (2) an insulating layer or a thermoplastic synthetic material, and (3) an intermediate layer of hot-melt adhesive contg. (a) 20-85% (65-75%) ethylene-vinyl acetate copolymer (b) 1-20% (5-10%) synthetic wax and (C) 5-40% (10-20%) hydrocarbon resin, or (d) 20-85% (60-75%) polyester or polyamide, (e) 1-20% (5-12%) synthetic wax and (f) 5-40% (10-28 %) hydrocarbon resin. The conduit can be used ata >130 degrees C.
Patent DE-2459811-A1 (DE)
Title: Computation circuit for exhaust feedback flow - analogue control elements evaluate flow equation using negative and positive numbers
Inventor: BRUHN HAUKE ING GRAD
IPC: F02D41/14
Filed: 1974-12-18
Abstract: An electronic calculating circuit enables the evaluation of the square roots of variables that are positive or negative to be evaluated in a feedback controlled exhaust gas emission control system. The exhaust gas feedback to reduce the carbon monoxide exhaust content is based upon the evaluation of a volumetric flow rate equation related to flow rate, pressure drop, upstream pressure, and temperature coefficient. Since pulsating flow occurs, a negative or positive pressure may be measured. The equation is evaluated by sensor outputs and an ambient temperature sensor output fed though analogue elements, such as an amplifier, multiplier, divider etc.
Patent DE-2500693-A1 (DE)
Title: Plastic general purpose light staircase - has reinforcements and overlays and can be of various designs and may be sectional
Inventor: HESS HERBERT
IPC: E04F11/104
Filed: 1975-01-09
Abstract: The plastic used for the stair (1) can be expanded, extruded, injection-moulded or produced by another method. The stair (1) has a top-section (2) and a bottom section (4). Bridge-pieces (3) between the two are for reinforcement. In the cavities (5) thus formed, reinforcement may also be inserted. Where the plastics is poured in liquid form into a mould, it is mostly foam. Otherwise, extruded sections are used for a complete stair and assembled together to form a composite unit. The sections may be hollow or solid.
Patent DE-2501364-A1 (DE)
Title: Temp. distribution in cold cabinet with deep-freeze compartment - becomes more uniform when cooling surfaces are placed symmetrically
Inventor: SIDORENKO MICHAIL KIRILLOWITSC
IPC: F25D17/04
Filed: 1975-01-15
Abstract: The deep-freeze compartment is placed centrally and refrigerated from above and below (4, 5); evaporator surfaces (6) alongside it on both sides cool the main cabinet evenly. Heat-insulating material surrounds, the deep-freeze compartment, outside its own cooling surfaces (4, 5) but inside the surfaces (6) that cool the main cabinet, an arrangement allows the cold cabinet to be de-frosted without disturbing the deep-freeze. Spaced slots in the side walls accommodate a number of partitions in an L-shaped configuration, and to which the insulating material is fixed.
Patent DE-2505927-A1 (DE)
Title: Lifting device for objects of changing section - with two guided unequal pairs of chain synchronously driven by one motor
Inventor: BECKMANN JUERGEN
IPC: B65G17/12
Filed: 1975-02-13
Abstract: Lifting device for objects of a changing section or diameter includes two pairs of flat link chain arranged in a housing and partly guided by a support track and driven by a motor. The two pairs of chain (1, 2) which are of different length are arranged in a suitable geometric figure preferably in a triangular form and are each guided over at least one support track and are synchronously driven by one motor. The equally long pairs of chain (1, 2) are joined together by a cross bar. AT least one part of the chains outer link is bent at right angles and provided with holes for attachment of the cross bar. The support track (3) is located in housings covering the flat link chains. Adjoining the top turning point (9) of the shorter pair of flat link chains (2) is positioned an off loading surface (10) in form of a table or a roller track.
Patent DE-2514444-A1 (DE)
Title: Voltage matching circuit for audio units - uses variable resistor or gain controlled amplifier
Inventor: LEINEWEBER HANS JOACHIM DR
IPC: H04B1/20
Filed: 1975-04-02
Abstract: The voltage matching circuit allows different audio units - one producing signals, the other accepting them - to be matched to one another to thereby avoid the distortion that arises when outputs of one voltage are connected to inputs of another voltage. The matching circuit uses either a variable resistor or a variable gain amplifier to achieve this end. The advantage of the matching circuit lies in its simplicity and in being easily incorporated into existing radios, tape recorders, televisions etc. and then adjusted as required to whatever signal voltages are being employed.
Patent DE-2522700-A1 (DE)
Title: Steaming plush or velour fabrics - to raise the pile loops before cutting without using tenter frame by deflection over sharp edge
Inventor: HAMPEL MARTIN
IPC: D06C11/00
Filed: 1975-05-22
Abstract: In the steaming of a strip of plush or velour fabric, which is transported longitudinally through >=1 steam zone where it is treated with steam, in such a way that the plush or velour pile loops face away from the steam zone, the strip of matl. is sharply deflected while being treated with steam, in such a way that the pile loops point outwards. Advantageously the strip of matl. is deflected round an edge extending transversely to the direction of advance. The use of a tenter frame can be eliminated since the edges of the strip do not roll inwards and this allows the matl. to shrink during the steam treatment.
Patent DE-2525949-A1 (DE)
Title: Sound insulating layered door, partition or cladding panel - has adhesives patches on intervening flexible layers offset on both sides
Inventor: KALINOWSKI GERHARD
IPC: E06B5/20
Filed: 1975-06-11
Abstract: The sound-insulating building panel for construction of doors, partition walls or cladding units, where mass and pliancy are significant in relation to flexibility at right angles to the plane. Adjacent layers (1, 2) of panel material are joined by an intermediate thin flexible layer (3). The guing or cementing units (4a, 5a) are applied only at intervals, and are never directly opposite each other on the two sides of the flexible layer, vertically to the panel's plane. The adhesive may be applied in strips, or in a punctiform pattern. There may be several alternating layers of panel material and thin flexible material, the former pref. plywood, chipboard or plasterboard, and the latter paper or metal or plastic foil.
Patent DE-2527274-A1 (DE)
Title: Draughting machine with central zero mark - has two parallel rulers slid by drive symmetrically to mark
Inventor: KNOBEL JOSEF
IPC: B43L13/02
Filed: 1975-06-19
Abstract: The draughting machine has a zero mark roughly in the centre of the main ruler. On this ruler there are mounted two other rulers, parallel to each other and at righ angles to it. A drive mechanism is provided, sliding them symmetrically in relation to the zero mark. On the main ruler there can be two additional scales apart from the main one below the latter. Each emanates from the zero mark and is for use with one of the other rulers, extending to an opposite end of the main ruler. The drive mechanism can be coupled to a counter, giving a digital indication of the distance between the parallel rulers.
Patent DE-2531376-A1 (DE)
Title: Cooling bed for hot rolled long steel plates - where plates travel in vertical stack to save floor space
Inventor: BEERENS HUGO DR ING
IPC: B21B45/02
Filed: 1975-07-14
Abstract: At least two tracks sepd. by groups of transport levers mounted on a stand. After one set of levers has swung a plate into the vertical position two further sets of swivel levers are used for the stepwise travel of the plate across the stand and it is then lowered onto the exit truck. The swivel levers pref. have a box section so the distance between each plate in the vertical stack is 600 mm. The max. temp. of the plates is pref. 600 degrees C, when it is swung into the vertical position so it is not distorted by the transport levers. Used for cooling plates 30-50 metres long.
Patent DE-2535606-A1 (DE)
Title: High rise structure heat insulating wall building block - has insulating layer on outside face of mineral block
Inventor: KORTH HELMUT
IPC: E04C1/41
Filed: 1975-08-07
Abstract: The insulating building block, for use in the erection of walls, comprises a normal conventional mineral-type load bearing block, with or without hollow spaces in it. On one lateral surface it is provided with an insulating layer (1). This may be made up from cenet- or magnesite-bonded organic fibrous materials; or alternatively from organic or inorganic foamed materials, or foamed plastics. The insulating layer may be closely mortared to the load bearing building block (2), before this has set hard; or the layer may be cemented onto the hardened block. Building blocks of this type can be safely used in the construction of multi-storey buildings, and provide the walls with a high degree of heat insulation, while the siting of the insulating layer on the outside wall surface prevents the formation of heat stresses and resultant fissures.