baber/WOPTO huggingface dataset:
Patent DE-2149864-A1 (DE)
Title: Expanded polystyrene beads prodn - hot-rolling to expel residual gases
Inventor: PATZKE JOERG UDO
IPC: B29C44/34
Filed: 1971-10-06
Abstract: Pref. the fresh, very light beads are rolled, while still hot, by calender rollers to 1/8 thickness, expelling the residual steam-pentane mixture. The beads can be used for shaped and packaging parts at above 20 kg/in3. The process speeds up the beads prodn.
Patent DE-2150759-A1 (DE)
Title: Metal strip store - with runner carriage which operates smoothly at high loop speeds
Inventor: LONIKAR JOSEF
IPC: B65H20/24
Filed: 1971-10-12
Abstract: Strip store for metal ribbons etc., comprises a horizontally movable runner carriage with a guide roll for the storage loop, and a gate either side of the track which is moved by the passing runner carriage from a working position into a resting position. The gate has guide rolls which project below the pivots, and the guide rolls engage with a horizontal guide on the runner carriage. The guide has a central section that continuously changes into a run-in or delivery side and is inclined w.r.t. the track.
Patent DE-2221655-A1 (DE)
Title: False twisting spindle speed controlling - tripping or starting driving motor by feeler response
Inventor: GUNNAR JACOBSSON KURT ARNE
IPC: B65H51/22
Filed: 1972-05-03
Abstract: False twisting spindle storage drum speed controller as claimed in 2125873 is modified in that the spindle is provided with a feeler which is responsive to a speed variation of plus-or-minus 5% of the preset speed to trip or start the driving motor and thereby keep the store of yarn on the drum at a constant value.
Patent DE-2241154-A1 (DE)
Title: Olefinically unsatd org isocyanates prepn - from carboxylic acid chlorides and organic silyl azides
Inventor: KRICHELDORF HANS-RYTGER DR
IPC: C07F7/18
Filed: 1972-08-22
Abstract: The organic isocyanates are prepd. from the acid chloride with pref. >=1 equiv. of silylazide at -20 degrees C to 160 degrees C. The isocyanates are used for the prepn. of plant protection and plastics and the process is esp. suitable for the prepn. of isocyanates with sensitive functional gps. e.g. olefinic and acetylenic multiple bonds.
Patent DE-2320104-A1 (DE)
Inventor: KASHIO TOSHIO
IPC: G04G5/00
Filed: 1973-04-19
Abstract: The electronic timepiece contains display elements (15a to 15f) for the sequential display of the output signal of a counter by the formation of a multiplicity of display sections, a selector circuit for selecting a function specified by the display elements (15a to 15f), and an operating member (17, 18), in order to trip the selected function. The selector circuit comprises a group of AND circuits, in order to select through the operation of the said member (17, 18) an output signal which forms a gate input signal when a specific display element lights up, and a group of bistable circuits for controlling an output signal which commands a function selected from the group of bistable circuits. <IMAGE>
Patent DE-2329825-A1 (DE)
Title: Schematic railway traffic signalling layout indicator panel - has coloured fields dependent on individual train data for forthcoming rail sectors
Inventor: HARTMANN MANFRED
IPC: B61L25/08
Filed: 1973-06-12
Abstract: The signalling system indicator panels show the state of trains passing through the layout by variously coloured illumination of separate sectors. The coloured illumination emanating from individual train data for sectors lying ahead is in addition to the indicator fields for the sectors actually occupied by a train, and may be of variable intensity, while the number of illuminated fields may depend on speed and braking state.
Patent DE-2336226-A1 (DE)
Title: Steering brakes for tracked vehicle - with dry friction pads and water cooled shoes to prevent sticking
Inventor: KLAUE HERMANN DR-ING
IPC: B62D11/08
Filed: 1973-07-17
Abstract: The steering brakes on the tracks, and their epicyclic reduction gearing are dry type for efficiency and simplicity. The brake shoes are shallow, water cooled and operated by hydraulic cylinders. They act on a brake drum to which are bolted strips of brake linings. The system does not suffer from sticking etc. associated with hydraulic systems. The brake strips are readily replaced by removing the cover of the gearing and loosening the bolts from the strips, without having to take the gearing apart. This overcomes the major drawback of periodic brake pad replacement associated with dry brakes.
Patent DE-2336749-A1 (DE)
Title: Electrolyte removal from crevices in aluminium - after anodic oxidn., by very low voltage alternating current treatment in acid bath
Inventor: LEUFE WILFRIED
IPC: C25D11/20
Filed: 1973-07-19
Abstract: The process is esp. suitable for removing electrolyte from shrinkage cracks or pipe exposed by machining castings in Al or Al alloys. After anodic oxidn., the parts are rinsed in an acid bath where they are connected to a low-voltage alternating current source; during this treatment, no anodic oxidn. occurs. The alternating current treatment pref. consists of 5 minutes at 2 volts in a bath acidified with H2SO4 and pH 1,0-5.0, pref. 3.0-5.0. It is essential to remove the residual electrolyte because such traces can ruin subsequent mfg. steps, e.g. colouring the anodic film, where the residues appear as bright spots or stripes.
Patent DE-2343224-A1 (DE)
Title: Compact horizontal rolling mill - for continuous rolling of sheet or strip
Inventor: MARTEN HANS-FRIEDRICH
IPC: B21B1/24
Filed: 1973-08-28
Abstract: The mill consists of two horizontal supports, arranged one above the other, and at least two pairs of rolls arranged in a longitudinal direction between the supports so that the axes of the rolls are in the one horizontal plane; the roll-housings can be moved along horizontal guide surfaces on the supports, by means of hydraulic cylinders used to apply roll press. Deflection rolls are mounted above and below the supports so the metal sheet or strip runs vertically downwards through the first pair of rolls then up through the second pair. The advantage is the rigid structure obtd. and e.g. four stands, each contg. two pairs of rolls, can be used in line to form a mill-train.
Patent DE-2343386-A1 (DE)
IPC: H03B5/36
Filed: 1973-08-28
Abstract: A quartz crystal oscillator circuit for use in electronic timepieces and capable of self-oscillation at a constant operating point in response to a self-biasing circuit is provided. MOS field effect transistor means are provided for feeding back the output voltage of a drain terminal of a cascaded series of inverter stages comprised of MOS field effect transistors to the input of a gate terminal of such cascaded inverter stages to provide self bias to the cascaded inverter circuit. The feed-back resistance of the MOS field effect transistor means is used to set the operating point of the circuit when a high resistance is required. The use of MOS field effect transistors therein also provides increased stability of the oscillating frequency during fluctuations in temperature.
Patent DE-2347253-A1 (DE)
Title: Sound-absorbing means inside dishwashers - prevents spray jets from noisily striking inner walls of wash chamber
Inventor: HEISSMEIER WALTER DIPL PHYS
IPC: A47L15/42
Filed: 1973-09-20
Abstract: The dish washer has a relatively thin refined steel wash container in which the sound-absorbing protection means are disposed, which preferably comprise nozzles or the like which are mounted in the upper part of the container and direct fine water spray along the side walls of the container thus preventing the noisy impact of the water jets against the walls of the wash container. The nozzles can be connected to the conventional circulating pump which is provided or to a separate pump or to a fresh water supply. For increased sound absorption the inside of the lid of the wash container can be lined with a resilient sound-absorbing material.
Patent DE-2365929-A1 (DE)
Title: Wear resistant screen with holes diverging towards output side - has holes cut by plasma torch before deposition welding from soft side
Inventor: WAHL HANS DR ING
IPC: B07B1/46
Filed: 1973-04-13
Abstract: The wear-resistant metal screen is manufactured by deposition welding on the input side of the screen holes. This is carried out by welding a hard, wear-resistant material onto an unperforated plate all over its surface, with automatic oscillation. The holes are then cut with a plasma torch in the plate and deposition welded from the soft output side. The cross-section increases by 2-20% from the input to the output side, to prevent blockage of the holes with the material to be screened. The holes must also be completely smooth on the input side, without any burrs which might cause jamming of particles which are only slightly larger and slightly smaller than the holes, and of irregular shape.
Patent DE-2402969-A1 (DE)
Title: Manufacture of profiled filling for doors - by compressing veneers with glue applied, at right angles to profile's generatrices
Inventor: SCHUESSLER ADAM
IPC: B27D1/08
Filed: 1974-01-22
Abstract: Profiled fillings are manufactured for wall and cupboard doors and consist of at least 2 veneer layers, glued together. The unconnected layers, with a viscous glue on at least one side, are advanced in common in a transport direction perpendicular to the parallel generatrices of a profile at a press position embracing at most a period of the profile, and at this position are pressed together according to the profile in a direction at 90 deg. to the generatrices and the direction of transport. Preferably two pre-profiled metal sheets are simultaneously moved with, and laid on the outside of the outer veneer layers.
Patent DE-2405181-A1 (DE)
Title: Purifying type air conditioner - which cleans and recirculates hot and optionally humidifies
Inventor: REUTER FRITZ
IPC: F24F8/80
Filed: 1974-02-04
Abstract: Air conditioner comprises a housing with roller-shaped fan, a laminar filter in the path of the air, the air inlet and outlet being connected with the room, a humidifier, and a flat housing. The filter may be a paper filter plate, or an electrostatic filter using the fan impeller as one pole and a conductive coating on the filter holder as the other pole.
Patent DE-2405219-A1 (DE)
Title: Hydrogen and oxygen fired thermal plant - incorporates a boiler, a turbine and electrolytic water dissociation system
Inventor: VESTER GERHARD
IPC: F02C6/18
Filed: 1974-02-04
Abstract: The combustion chamber of the thermal plant for burning of hydrogen and oxygen is connected via a turbine to the flue. The combustion chamber is enclosed by a water filled boiler. A compressor whose shaft is coaxial with the turbine shaft supplies air into the combustion chamber. Hydrogen and oxygen are supplied from storage cylinders into the combustion chamber. The heat generated expands air and this expansion is converted to mechanical energy in the turbine. Heat from the combustion chamber walls is absorbed by the water. Condensate from the combustion chamber is drained. The boiler is used for generating hot water for heating or steam for an electric power plant. Electricity generated is used for electrolytic dissociation of water into hydrogen and oxygen which supplements the supply of hydrogen and oxygen.
Patent DE-2409309-A1 (DE)
Title: Single seat snow ski vehicle - has single front skid and two rear skids to serve as brakes
Inventor: CZECZOR WALTER
IPC: B62B17/08
Filed: 1974-02-27
Abstract: Two parallel rear skids act as brakes operated by pivoting the handlebar. The skids act then in a snow-plough operation, the leading points of the skids being drawn together to form a V. This is done by a horizontal puller rod attached at its rear end to a rigid support frame, in turn fixed to the centre zone of the skids. The puller is also connected via across bar and connecting rods to the front end of the skids. The front end of the puller bar is fixed to the end of the handlebar support column, pivotted at the mid part of the front skid support. As the handlebar is pulled back the lower end of its support is forced forward and the fronts of the rear skids are pulled together.
Patent DE-2409554-A1 (DE)
Title: Rotors in screw compressor - formed by glass fibre reinforced heat resistant polyamide injected on metal shaft
IPC: F04C18/08
Filed: 1974-02-28
Abstract: Screw compressor, or pump with rotors located in a housing, in which the rotors comprise a synthetic material, preferably glass fibre reinforced, injected on to a metal rotor shaft. The synthetic material is a heat-resistant polyamid such as polyethyleneterephthalate, and the glass fibre content is preferably 30%. The rotor shafts are provided with a shaping on their cover surface enclosed with synthetic material. This shaping takes the form of grooves and steps running in an axial direction and equally distributed over the circumference. In the screw combings at least in those of the male rotor, central recesses are provided, which run from the rotor face sides to almost the middle of the rotor.
Patent DE-2412359-A1 (DE)
Title: Contactless object outline measuring device - with object illuminated by coherent light from two punctiform sources
Inventor: BAERWINKEL KLAUS DR
IPC: G01B9/021
Filed: 1974-03-14
Abstract: The apparatus produces a 3D interference field with an optical interference fringe pattern on the object, preproduced on an image plane by central projection. An interference fringe pattern is produced on a reference plane with at least three points whose position is known. Data concerning the optical positioning of the light sources, of the optical system and of the image plane are derived from the pattern, its image and the image of the known points. A parallel laser beam directed along the perpendicular to the straight line joining the two light sources, and passing through its centre, marks the zero order interference. A computer calculates the object outline. The image plane is electro-optically scanned and the data fed into the computer. The system is relevant to machine tool control.
Patent DE-2413889-A1 (DE)
Title: Steel banding strap join for packaging - has expanded side lugs on top end hooking behind tongues on lower one
Inventor: SCHROEDER THEODOR
IPC: B65B13/30
Filed: 1974-03-22
Abstract: Lugs are formed in the sides of the strap ends by cutting into them, after which the lugs are bent up or down. Those bent down are expanded parallel to the lengthwise direction of the strap and on the top strap end are hooked behind the sides of tongues on the bottom strap end, which are either bent upwards or left in the same plane as the rest of the strap. The overlapping strap ends can be cambered locally at the edges, after which lugs are formed by cutting in, bent out of the plane of the strap and expanded by stretching against the camber. The process can be carried out by a toggle-lever operated lower knife working with a movable upper one, the latter comprising three parallel blades. The central blade is rigidly mounted, while the two outer ones move between the mounting bolts of the tilting lower one.
Patent DE-2416966-A1 (DE)
Title: System for detection of screen grid current - is for transmitting tubes with magnetic fluxes from anode and cathode currents
Inventor: RICHTER MARTIN
IPC: G01R31/25
Filed: 1974-04-08
Abstract: The differential flow of two oppositely directed magnetic fluxes caused by the anode current and cathode current is detected by a probe sensitive to magnetic fields. The output signal from the probe represents a criterion for the screen grid current. There can be a toroidal core with two highly insulated windings traversed in opposite directions by the anode current and cathode current. A Hall generator placed in an air gap of the toroidal core gives off a voltage which is a criterion for the screen grid current.
Patent DE-2428939-A1 (DE)
Title: Holes in concrete for subsequent bolt insertion - metal-walled near mouth and bored deeper by bar-type element
Inventor: WOLTER RUDOLF
IPC: E04G15/06
Filed: 1974-06-15
Abstract: In holes cut out from concrete, for subsequent introduction of bolts, this is applicable where it is preferable that the deeper area of the holes should be bored, rather than metal-bounded. There is steel, or other metal, walling round the holes in the vicinity of the mouth, and in the deeper part the hole is produced by a bar-shaped element which is concreted in, and which can be withdrawn or bored out; this element may be round or angular in cross-section, and may be made of wood. At the metal-lined end there may be a funnel-shaped socket, concreted in; or a perforated flat steel or angled steel piece.
Patent DE-2431334-A1 (DE)
Title: Stepping motor with multi-pole permanent magnet rotor - has two-part pancake stator winding in series opposition
Inventor: JEISECKE WOLFGANG
IPC: H02K37/14
Filed: 1974-06-29
Abstract: The stepping motor has a multi-pole permanent magnetic rotor whose alternate polarity poles are axially displaced with respect to the pole fingers of the two-part stator winding. The stator core is constructed as winding support for two toroidal windings, as in 1538705. The two toroidal windings (7, 8) are connected in series opposition such that they produce a single magnetic field corresponding to the difference between the magnetic fields generated by the separate windings (7, 8). One winding is preferably shunted by a capacitor (C) located outside the stepping motor. The arrangement gives to the motor a highter efficiency and a max. turning moment with the lowest possible number of components.
Patent DE-2432894-A1 (DE)
Title: Back pressure valve with sealing spring retainer - retainer has integral guide surfaces for closing element
IPC: F16K15/02
Filed: 1974-07-09
Abstract: The back pressure valve has a housing, with a connected retainer to guide and support the closing spring. The retainer (4) is provided with guide surfaces (4d) for the closing element (2). The retainer consists of an open stand with three or more angled legs (4a), which surround the spring (3) and the closing element in a bell fashion. The feet of the retainer legs engage elastically on the housing wall (1), and are connected by an integral base ring. The retainer is held on the housing via a spring ring (5). The retainer may consist of wire, a cast-or forged element, sheet metal, or synthetic.
Patent DE-2443008-A1 (DE)
Title: Sound head for sub-standard film projector - designed for self-servicing and repair facilities
Inventor: JAEGER GUENTER
IPC: G03B31/02
Filed: 1974-09-07
Abstract: The magnetic sound head on a self-threading sub-standard-cine film projector has a cover which is easily removable for cleaning and/or maintenance. It will also take various types of reading head (8) interchangeably (magnetic, optical, two-rack, etc.,) with provision for the different electrical connections they require built in, so that re-wiring is not required (24). Both the film channel (7) and the reading head (8) are self-adjusting when the cover (32) is closed. Preferably a double T shaped plate (15) is inserted in the region of the sound tracking area for magnetic sound. The sound head carrier (14) is preferably pressure-moulded.
Patent DE-2444497-A1 (DE)
Title: Variable pattern concrete paving stones - with base of four squares, with two opposite corners replaced by quarter circles
Inventor: FRANK KURT
IPC: E04F15/08
Filed: 1974-09-18
Abstract: A slab or paving stone is provided which allows many variations of patterning when laid, while being easy to produce. This is achieved by giving it a base surface formed from four squares (a, b, c, d) with the external sides on two diametrally opposite squares (a, d) replaced by a quarter-circle curve, with variable stone height. One of the quarter-circle curves may be convex and the other concave, so that two curves in the same direction are always adjoining two square outer sides of the two other diametrally opposed squares. As well as being used together in varying ways, these can be combined with other standard stones to make up a wide variety of patterns.
Patent DE-2444698-A1 (DE)
Title: Pressing copper clad laminates without movement - by pressing pinned stacks between laminate cauls
Inventor: ROLOFF WILFRIED
IPC: B30B15/06
Filed: 1974-09-18
Abstract: Large sheets of multi-ply copper-clad laminates are made by hot pressing between two rigid platens several stacks sepd. by cauls but positioned accurately by pinning; the cauls are srbp laminates. Cauls have similar thermal expansion to the stacks thus eliminating movement of matl. during pressing, they have good finish and sufficient temp. resistance. The cauls are pref. sprayed both sides with tetrafluoroethylene to prevent adhesion.
Patent DE-2458794-A1 (DE)
Title: Self levelling pneumatic suspension for train - with pivotted sensor linkage between carriage and bogey (NL150676)
Inventor: BAUMANN ANTON
IPC: B60G17/04
Filed: 1974-12-12
Abstract: The train bogey (6) is pivoted about a vertical axis on top of a height adjustable pneumatic cushion (8). A height control valve (11) fitted to the carriage is linked to the bogey by means of a special double armed, double jointed linkage (18) which allows the bogey to pivot without affecting the setting of the valve. The vertical movement of the bogey is sensed by the valve in any setting of the bogey. The attachment point of the linkage to the bogey is by means of a vertical shaft (9) linked to the bogey on a height adjustable mounting.
Patent DE-2505035-A1 (DE)
Title: Optical cable for transmission by light waves - accepts signal which is transmitted simultaneously over several fibres through distributor
Inventor: KUNZE DIETER DIPL ING
IPC: G02B6/44
Filed: 1975-02-06
Abstract: Several fibres carrying the same signal are combined in a bunch forming a cope. An instability poit or a light distribution zone is provided in the fibre bunch of a length of cable, so that light still carried by the fibres or a part of the fibres is again pref. uniformly distributed over all fibres of the bunch. A typical geometrical arrangement comprises a number of fibres (1) combined into a bunch (2), with the reception of light energy applied to one face (4) and transmission through a similar face (3). The ends of the longest fibres about to a flat disc distributor (6) which has a refractive index substantially the same as that of the optical fibres. The joint is surrounded by a sheath with a refractive index the same or larger than the refractive index.
Patent DE-2508941-A1 (DE)
Title: Piston compressor for refrigeration unit - in which the output is controlled by a magnet coil
Inventor: SCHERBAKOW WSEWOLOD SERGEEWITS
IPC: F04B49/24
Filed: 1975-03-01
Abstract: The control mechanism can be used with piston compressors which are used especially with explosive media e.g+ freon. The magnet coil is mounted in an annular groove which is made in the outside of the compressor cover. The magnet coil controls the suction vavle via an iron core. The iron core is connected to each suction valve (5, 7) of cylinders (3 & 4). The iron core is formed by the cover (2), of the cylinder block, the cylinder block (1) and outlet valves (6, 8) of each of the cylinders (3 & 4). A non magnetic layer (20) is mounted between the cover and the cylinder block.
Patent DE-2513278-A1 (DE)
Title: Bloom casting cage - holding twelve pairs of chill moulds at fifteen degree offset for minimum inertia forces
Inventor: HESS WALTER DR
IPC: B22D9/00
Filed: 1975-03-26
Abstract: Blooms for rolling mills are cast in chill moulds which can be rotated around their centre line during the pouring operation. The moulds are arranged in twelve pairs in a cage with an angular offset of 15 degrees from one mould to the next which are filled in turn by revolving the cage and repositioning the casting ladle. This keeps the linear velocity of the mould ends and the inertia forces during acceleration and deceleration of the cage to a minimum. The system allows large blooms of 2 to 6 m length and of 500 to 2500 kg wt. to be cast without undue overall height requirements.