baber/WOPTO huggingface dataset:
Patent DE-2414482-A1 (DE)
Title: Coiling of thick steel strip - is eased by tapering leading strip end to assist initial bending on drum
Inventor: ROTTER FRIEDRICH DIPL ING
IPC: B21B15/00
Filed: 1974-03-26
Abstract: At the end of the rolling operation, finished steel strips are being coiled. When the leading end of the strip reaches the coiling drum, deflector plates have to bend it around the drum to form the start of the coil. Since strips of up to about 13mm thickness are coiled, the initial deflection impact causes considerable wear on the coiling equipment. By reducing the thickness or by tapering the leading end of the strip, less deflection force is required to start the coil, hence a less powerful coiling mechanism can be employed. The taper leads in from a section reduced by about 20% of the normal thickness over a length of 0.5-5m.
Patent DE-2418173-A1 (DE)
Title: Skittle pattern display and resetting mechanism - use signals generated by rotating suspension rope pulleys
Inventor: MICHALOWSKY RODRIGO DIPL ING
IPC: A63D5/04
Filed: 1974-04-13
Abstract: The suspension ropes of an automatic skittle setting mechanism run over grooved rope pulleys, each pulley being coupled to a generator which produces a signal when the pulley rotates. When a skittle is knocked over during play, the moving rope rotates the appropriate pulley, thus generating the required signal. The signals are used to display the pattern of the fallen skittles as well as to control the skittle setting mechanism. The system is particularly designed to have a minimum number of parts which are subject to wear and tear.
Patent DE-2420408-A1 (DE)
Title: Rolling steel U-channels from pre-formed blanks - by adjusting the speeds of the upper and lower rolls to eliminate warping
Inventor: TOMOTO NOBUO
IPC: B21B1/095
Filed: 1974-04-26
Abstract: In the mfr. of channels using a universal mill-train, in order to balance the channel speed with the rolling-speed, the rotational speed of the upper and lower rolls on each edging stand in a universal stand is adjusted and/or an appropriate difference in the dia. of these rolls is selected. It is pref. to adjust the rotational speed of the upper and lower rolls so that the peripheral speed is the same. Due to the unsymmetrical shape of a U-section wraping occurs on rolling and this method is intended to balance the effect of the upper and lower rolls so bending and distortion are eliminated.
Patent DE-2421142-A1 (DE)
Title: Radioactive waste disposal by binding into concrete - using waste container as mixing vessel to minimise contamination
Inventor: HANSS PAUL
IPC: G21F9/00
Filed: 1974-05-02
Abstract: Method comprises metering the waste, in the form of an aq. suspension, the cement, fillers and accelerators directly into the transporting container, where they are mixed by an agitator lowered into the container to form concrete. For solid waste, the quantity of water required in the concrete mix. is pref. added to the constituents. No concrete mixing plant or conventional type is used; therefore there are no problems associated with cleaning radioactive residual concrete.
Patent DE-2427391-A1 (DE)
Title: Automatically opening and closing tube cap - has spring portion withdrawing when tube is pressed to allow dispensing
Inventor: BRUEGGEMANN BERNHARD
IPC: B65D47/20
Filed: 1974-06-06
Abstract: The cap is particularly for toothpaste, saving-cream etc. and allows one-handed operation together with accurate dispensing. A spring portion withdraws when pressure is exerted on the tube, allowing the contents to emerge in tape form. On release of pressure the spring portion nips the tape off and seals the tube again.
Patent DE-2428164-A1 (DE)
Title: Premix gas burner retention system - has captive screw threaded nut which engages with securing bolts
Inventor: HEIN GEORG
IPC: F23D14/04
Filed: 1974-06-11
Abstract: In an addition to 2207888 a pressix gas burner device with parallel gas mixing channels formed from depressions cut in sheet material sections which are then fixed together. A locking device is fixed in such a way that in cannot be lost and corresponds to a bolt end. The locking device which clamps sheet sections together can also be in the form of a captive threaded nut which engages on an extension of the bolt and is housed in a sleeve in a loose fashion. The locking device additionally serves to accurately centre the burner top part to the base.
Patent DE-2428718-A1 (DE)
Title: Brushless DC motor with inductive commutation - has multi-phase stator winding and permanent magnet rotor
Inventor: WEHDE HEINZ DR RER NAT
IPC: H02P6/21
Filed: 1974-06-14
Abstract: The motor circuit has a switch network via which at least one phase of the stator winding can be controlled, to bring the rotor to its rest position, and via which one phase of the stator winding can be controlled for a selected time duration, to bring the rotor up to the required running speed. Pref. the stator winding is connected to an amplifier stage via a commutating circuit, providing control signals for the amplifier stage in dependence on signals supplied from the switch network and on induced voltage signals dependent on the rotation of the rotor. The commutating circuit pref. employs a differential amplifier stage for each stator phase winding.
Patent DE-2435865-A1 (DE)
Title: Follower cct for anti-parallel thyristors in heaters - ensures alternate conductivity using transistor, diode and capacitor
Inventor: GRIMM OLAF DR ING
IPC: H02M5/257
Filed: 1974-07-25
Abstract: The follower circuit for anti-parallel thyristors in heating systems has the two anti-parallel thyristors (1, 2) in series with the load (4) across the phase supply, and consists of a capacitor, a diode and a transistor and ensures that the second thyristor (2) is always on, when the first is off, and vice versa. The cathode of the second thyristor is coupled via the capacitor (7), the diode (6) and a resistor (5) to the neutral line, and its gate is connected via the collector-emitter path of the transistor (9) to the junction between capacitor and diode cathode. The transistor base is connected to the diode anode. A Zener diode (8) may shunt the capacitor.
Patent DE-2438910-A1 (DE)
Title: Strontium-calcium niobate dielectric for microwave applications - having high dielectric constant, low loss and improved temp. stability
Inventor: NANAMATSU SATOSHI
IPC: H03F3/60
Filed: 1974-08-13
Abstract: New dielectric oxide material is based on a cpd. of the formula 2(Sr1-x.Cax)O.yNb2O5 (in which 0.1 = x 1.0 and 0.6 = y 1.5; pref. 0.2 = x =0.6 and 0.6 = y =1.2). It is produced by heating a mixt. of SrCO3, CaCO3 and Nb2O5 at 1000 degrees C for 3 h, moulding and then sintering in air at 1300-15550 degrees C for 2-22 hr. For microwave applications, e.g. in miniaturised integrated microwave circuits to stabilise the frequency of the oscillator, as dielectric resonators etc. The material has high dielectric constant, low loss factor and lower temp. coefft. (down to below 40 ppm/degrees C) than conventional dielectric materials.
Patent DE-2440127-A1 (DE)
Title: Lined canal bottom construction - lining slabs are used as formwork for in-situ. cast concrete
Inventor: KAESER SIEGFRIED
IPC: F16L1/038
Filed: 1974-08-21
Abstract: In a method of making canal bottoms using in-situ poured concrete, the stones or slabs which form the lining are themselves used as the formwork for the inside surface of the concrete. When side slabs (12) and base slabs (11) are used, they are hung from the supporting construction using locking elements immediately after the concrete has been poured. When the locking elements are released, the pressure of the concrete forces the slabs against the supporting structure. When interlocking stones are used, these are arranged around the inverted supporting structure using tensioning wires, and the supporting structure is turned the correct way up and lowered into the canal.
Patent DE-2441770-A1 (DE)
Title: Buoyant solar energy trap - formed as floating body or mounted on floating body, sited on water
Inventor: RASCH CHRISTFRIED DR ING
IPC: F24S23/70
Filed: 1974-08-31
Abstract: The purpose is to provide a less expensive mounting for a sun-ray trap, or group of such traps, which need to have wide surface areas and to be accurately tilted to absorb max - radiant solar energy and have the excess heat drawn off for use; the functions included are stable support, steadiness in wind, and accessible and accurate rotation and inclination facilities, leading to a simple and effective draw-off cooling system, whether for solar cell batteries, thermoelectric batteries, thermionic batteries, steam generators or other systems, or combinations. The apparatus is either itself in the form of a buoyant unit, or is mounted on or in one or more buoyant units, fixed or inclinable, the whole being sited on natural or artificial water surfaces, or on a specially designed loop.
Patent DE-2444133-A1 (DE)
Title: Rotating wood-chipping machine - with blade cage adjustable for revolving about rotor axis when machine stops
Inventor: MAIER GERHARD DR
IPC: B27L11/00
Filed: 1974-09-16
Abstract: Rapid replacement of blade clusters which have become worn, even on machines with rotors of very large diameter, is possible in a wood-chipping machine which has a cutter-blade cage, concentrically surrounding the rotor, with interchangeable blades pref combined with blade plates into blade clusters. When the machine is stationary the blade cage can be set up for a rotary movement about the axis of the rotor. There is pref. a device for coupling and uncoupling the blade cage to or from the housing of the machine (10). The blade cage may be mounted on an extension (15) of the rotor shaft (13), on the side opposite to the drive, via a hub (19) connected to it by arms, axially displaceable between a setting coupled to the housing and an uncoupled setting.
Patent DE-2444391-A1 (DE)
Title: Switching network for time division multiplex exchange - is especially for pulse code modulated TDM exchanges
Inventor: SCHLICHTE MAX DIPL ING
IPC: H04Q11/04
Filed: 1974-09-17
Abstract: Allocation in time and space of time channels used on incoming TDM lines is to time channels to be used on outgoing TDM lines is done by shifting them in time. Time stages (StA-StL 100) producing the shift in time form groups by connection of their inputs and/or outputs through TDM connection lines (ZV1-Z3V10), within which they have access only to a part of the time channels available on these TDM lines, owing to fixed allocation of their storage locations to time slots during signal reception and/or signal transmission.
Patent DE-2447043-A1 (DE)
Title: Circuit for conducting cooling agent - enables coolant to be recirculated between points at different electric potentials
Inventor: KUHN ERNST DR
IPC: H02G15/34
Filed: 1974-10-02
Abstract: The arrangement is intended for cable heads for h.v. internally cooled cables. The coolant, may be ordinary water, and the water is passed at the beginning or end of a pipe through a multiple nozzle, shower or other similar device (8) at the head fitting (7) of an insulating cylinder (6), whose clear section is much larger than that of the input pipe. The outside of the insulating cylinder has ribs of sheds in the manner of an insulator for a high tension power transmission cable, and there are three metallic splash rings (9), one at the top, one in the middle and one at the bottom of the insulator. The water runs out through a drain (11) at the bottom.
Patent DE-2451427-A1 (DE)
Title: Headphone with close fitting diaphragm - forms with ear small air chamber serving as coupling space
Inventor: GOERIKE RUDOLF DR
IPC: H04R1/10
Filed: 1974-10-29
Abstract: The earpiece presses on the ear sufficiently to seal the coupling space from the ambient air. At least one sound by-pass is provided from the diaphragm front side to back side, whose acoustic impedance is much lower than that of leaks or of the earpiece porosity. It represents the only connection between the two sides of the diaphragm when the earpiece is tightly closed. This by-pass consists of holes very close to the diaphragm for sound passage from the coupling space through possible acoustical impedances to the diaphragm back. Acoustical damping material, e.g. open pore foam material, is provided in the by-pass; or acoustical impedances in the form of frictional resistance or acoustical masses are provided at the sound holes at the coupling space.
Patent DE-2510489-A1 (DE)
Title: Fold-forming tape for pleated or gathered curtains - of gathering cords on either side of tape
Inventor: ADOLPHS FRIEDHELM
IPC: A47H13/16
Filed: 1975-03-11
Abstract: The versatile pleat-forming tape (10) comprises draw cords worked into the back of the tape so that one set of cords belonging to one group can form a larger number of folds than another group. One group of cords are mounted on one side of the tape and the other group which form a different set of folds is mounted on the other side of the tape. The draw cords of one group (2, 3) differ from the cords in the other group (8, 9) on the other side in number of floating cord sections. However, this does not cause a loose formation of loops since the cords of the group which will not be used are on the other side of the tape and the curtain material is stitched to this side before the folds are drawn up so that the loops then remain concealed between the tape and curtain.
Patent DE-2516355-A1 (DE)
Title: Organic cpds. electrochemical fluorination - in acetonitrile as solvent using electrolysis mixts. contg. 0.1 to 20 percent free hydrogen fluoride
Inventor: BECK FRITZ DIPL CHEM DR
IPC: C25B3/28
Filed: 1975-04-15
Abstract: In a process for the electrochemical fluorination of organic cpds. (esp. alkylbenzenes, naphthalene, alkylaniline, benzimidazole or phenothiazine) in acetonitrile as solvent, the electrolysis mixt. contains 0.1-20 (pref. 2-5) wt. % free HF. Fluorine-contg. organic cpds. are used for the prodn. of e.g. polymers, surface-active agents, propellant gases, pharmaceuticals and plant protection agents. With 0.1-20% solns. of HF in acetonitrile, electrofluorination can be successfully carried out without the addn. of a conductive salt. Fluorinated cpds. are obtd. in better yields and more simply then by known known electrofluorination processes. The prods. can often be purified by simple distn. of the reaction mixt.
Patent DE-2521292-A1 (DE)
Title: Full non-woven fabrics of low density - made from blends of self-crimping and fibrillated acrylonitrile fibres
Inventor: KOBAYASHI TADAHIRO
IPC: D04H1/42
Filed: 1975-05-13
Abstract: Prodn. of full, non-woven fabrics with apparent densities of 0.05-0.25 g/cm3, comprises (A) dispersing in water a mixt. of (a) 50-95 wt % self-crimping fibres of 4-25 mm length, and (b) 5-50 wt % fibrillated heat-shrinking fibres, (B) forming a sheet from the dispersion (c) dipping in water at 90 degrees C min. to produce >=785 crimps/m. in (a) and a shrinkage of >=10% in (b), and (D) drying. (a) is a fibre from 80-100% acrylonitrile and 20-0% conomoner. (B) is a fibre from 60-98 wt % acrylonitrile and 40-2 wt % co-monomer contg. a COOH or opt. substd. amide gp. which has been milled to a Canadian Std. Freeness of 100-500 cm3. Used in the building industry, for clothing, domestic textiles, artificial leather, and in agriculture. Gives lower density and improved softness cf. other non-wovens, with more even and firm surfaces.
Patent DE-2524234-A1 (DE)
Title: Security bolt for vehicle number plate - with smooth head and shear off tooling coupling to prevent illicit reuse
Inventor: HETTISCH SIEGFRIED
IPC: F16B5/02
Filed: 1975-05-31
Abstract: The numberplate is fitted to the mounting surface by a set of special nuts and bolts which cannot be removed without damaging the numberplate. The head of the bolt is round and smooth and is fitted with a tooling extension complete with screwdriver slot. The extension is sheared off when the bolt is tightened. The nut also has a conical smooth profile fitted with a hexagonal extension which is also sheared off when tightened. The bolt presses the numberplate to the rear of the mounting plate for a more secure hold. The system prevents numberplates from being stolen for re-use.
Patent DE-2526549-A1 (DE)
Title: Exhaust gas afterburner for IC engine - has inlet pipes curved to allow differential thermal expansion
Inventor: LANGE KARLHEINZ DIPL ING DR
IPC: F01N3/26
Filed: 1975-06-13
Abstract: The afterburner has a combustion chamber (3) surrounded by an outer chamber (12). Burnt gases leave the combustion chamber through holes (11) in its ends and the exhaust is connected to a central flange (13) on the outer chamber. Separate inlet pipes (5, 6, 7) come from different cylinders of the engine and are taken through the outer chamber to terminate in the inner chamber with their openings directed to a common point (p) as in 2412185. All except one of the pipes are curved so that the distance (a) between them at their point of entry to the afterburner is less than the distance (b) between them at the flanges (14) connecting them to the cylinder head. This allows for differential expansion between cylinder head and afterburner.
Patent DE-2526639-A1 (DE)
Title: Photographic controlled data reader - has reading devices for data on edge strips of packets with computer connections
IPC: G06K17/00
Filed: 1975-06-14
Abstract: The transport track for photographic elements consists of a guide track (26) along which travel the packets (2) each of which carries a coding (6) affixed to the end of the packet. This passes over a 'read' slit (4) to a printer (7) with a price printing device connected to an external computer (17). Underneath the feed-in track is another 'read' station (5) with a connection to the computer. On the outward side are a number of tracks to distribute the data packets to various channels. The distribution system is controlled by the operation of the computer.
Patent DE-2538184-A1 (DE)
Title: Logic circuit with two-stage differential amplifier - has multiple emitter transistor in first stage of amplifier and acts as multiplexer
Inventor: MEYER FRITZ DR ING
IPC: H03K19/086
Filed: 1975-08-27
Abstract: The transistor individual emitters are connected to emitters of preceding emitter followers, joined in pairs. In order to produce a multiplexer for n input singals, n emitter follower pairs are provided each consisting of a signal transistor (T6, T4) and a control transistor (T3 T5). In each emitter follower pair the signal transistor base is connected to a signal input, and the control transistor base is connected to one of n outputs of a control signal source delivering n control pulses. The pulses do not overlap. Their phases are spaced by 360 deg./n and their amplitudes are negative. Control signal source outputs are connected to the bases of emitter follower pairs in the same order as the input signals are fed in the common signal channel.
Patent DE-2540659-A1 (DE)
Title: Elliptical aircraft with movable ballast - has adjustable pods slung under fuselage and contg. water ballast
IPC: B64C39/00
Filed: 1975-09-12
Abstract: The aircraft has an elliptical cross section, like a flying saucer, with the cockpit in the front half of the upper section. A centrally mounted ducted turbofan provides lift and movable flaps direct the thrust. Steering is by flaps and steering jets around the periphery. Stability is controlled by three pods slung under the fuselage and filled with water ballast from a control pump. The aircraft is made from glass fibre on light alloy frames for strength and lightness. The efficient turbofan has a good power to weight ratio while the ballast control, with the pods not only linked to pumps, but also extending from the fuselage, enables the craft to be steered in any direction.
Patent DE-2543848-A1 (DE)
Title: Pump fitted with pressure chamber - has control system regulating an ignition device and controlling pressure within pressure chamber
Inventor: KAPOCSY KAROLY
IPC: F04B9/10
Filed: 1975-10-01
Abstract: Pump fitted with a pressure chamber lowered below the liquid level with a non return valve fitted in lower closure eleent has a pressure pipe leading through the upper closure element and a non return valve at the end equipped with a pipe socket to introduce the pressure medium. The pump is fitted with a control system which produces pressure in the pressure chamber with the aid of rectangular impulses obtained from a compressible liquid and during intervals between impulses converts the pressure chamber to atmospheric pressure. The pump with sparking plug (32) in the upper closure element (5e of the pressure chamber (1), is also fitted with gas inlet and outlet pipes, has a storage unit consisting of a gas container and a compressed air source with a control system (29) regulating the ignition device (39) and bringing the pressure chamber (1) to atmospheric pressure in the interval between impulses.
Patent DE-2545641-A1 (DE)
Title: High rupturing capacity fuse - has fusible conductor within channel wuth gas emitting inner wall and radial apertures
Inventor: NIEMEYER LUTZ DIPL PHYS DR
IPC: H01H85/042
Filed: 1975-10-11
Abstract: The arc generated by melting of the fuse conductor is exposed to a quenching gas flow produced inside the fuse assembly. The fuse conductor (1) is mounted in a channel (2) whose inner wall consists of material, developing gas under light arc conditions. The channel has radial apertures (8) opening into gaps (7) formed by spaced insulating walls (4). Preferably the insulating walls are bell-shaped and the gaps are annular, with cooling ribs (9) possibly provided in the latter. The sheet metal cooling ribs may be simultaneously radially and axially directed. The channel part may be in the form of a replaceable tube.
Patent DE-2554979-A1 (DE)
Title: Self adjusting transistorised ignition system for IC engine - has non:linear resistor with heating and cooling pipes for stability at operating point
IPC: F02P3/055
Filed: 1975-12-06
Abstract: Self adjusting transistorised ignition for the ignition coil of an internal combustion engine. The transistor will not overheat during the starting process and the ignition power will be doubled. This will ensure starting in the most adverse condition. If the motor is running, the ignition power will be reduced to the normal value because of the higher temp. The circuit incorporates non-linear resistors - heating and cooling pipes. This will achieve a stability at the operating point of the transistors and their temperature. At the operating temp. the ignition power will increase considerably. At start the ignition current will be reduced automatically to the extent that overheating of the ignition circuit will be prevented.
Patent DE-2557630-A1 (DE)
Title: Releasable fasteners for furniture units - with pivotable clamping bar encompassed by clamping block
Inventor: SCHEFTHALER ALOIS
IPC: A47C13/00
Filed: 1975-12-20
Abstract: Releasable fasteners for furniture units comprises a clamping bar which connects the furniture units and which is mounted pivotably on a plate screwed to the lowr surface of a furniture unit. The bar is encompassed by a clamping block which is attached to the lower surface of another furniture unit. Pref. the clamping bar is mounted pivotably on the plate by means of a rivet and spring washer, and at its end opposite the pivot, point, in which the inserted the clamping block is bent at right angles and provided with a PVC block. The fasteners have a simple structure, allow rapid easy fastening and release without having to lift or regroup the furniture units, and yet have sufficient strength.