baber/WOPTO huggingface dataset:
Patent DE-2557658-A1 (DE)
Title: HF response fault detection in metal workpieces - exposing cracks or faults deep inside workpiece by monitoring frequency against voltage drop characteristic
Inventor: OSTERHUBER ALFRED
IPC: G01N27/20
Filed: 1975-12-20
Abstract: A method of detecting faults or cracks deep inside metallic workpieces, using a h.f. voltage drop response technique, in which this characteristic is altered by any such faults in the workpiece, is presented. Faults which lie deep in the workpiece can be exposed by this technique, in contrast to X ray and ultrasonic methods which can detect those lying relatively near a surface. Basically, the voltage drop against frequency response of the workpiece up to a frequency of 1 GHz is plotted automatically on a pen recorder, using a variable frequency signal generator and an amplitude measurement network. A fault in the workpiece produces a non-linear characteristic due to the additional surfaces present in the workpiece producing skin effects additional to those in the fault free workpiece.
Patent DE-2606439-A1 (DE)
Title: Metallising friction surface of lifting cylinder - using pseudo-alloy contg. silicon, copper, tin, antimony and aluminium
Inventor: HANNIG CHRISTOPH ING GRAD
IPC: F02F3/10
Filed: 1976-02-18
Abstract: Friction surface of lifting cylinders, esp. of large internal combustion engines, is metallised with a thermally sprayed on so-called pseudo-alloy coating, contg. by wt., 2.5-5.5(4-5)% Si, 1-2.5 (1.5-2)% Cu, 25-40(30-35)% Sn, 2.5-4.5 (3.5-4)% Sb, bal. Al. Starting material for pseudo-alloy consists of two simultaneously metallising pre-alloy wires, one contg. AlSi and the other SnSbCu. Coating acts as an overload safety device. In normal operation of the engine, coating has high resistance to abrasion. On overheating, coating is capable of deformation. Softer alloy components yield first, whereas the stronger form a strengthening grid.
Patent DE-2606565-A1 (DE)
Title: Method of fixing blades to axial-flow turbine rotors - by distributing stresses evenly, damping axial vibration, making removal easier
Inventor: WIKSTROEM ROLF DIPL ING
IPC: F01D5/30
Filed: 1976-02-19
Abstract: The rotor (2) has around its periphery axial slots shaped to accept the "fir-tree" (9) blade roots (5), with some clearance. After insertion, the blade root shoulders are peened at each corner (7) to lock them against the rotor (6) and adjacent roots, using a suitably shaped tool (e.g. a pyramid-point punch). This ensures even loading of the blade anchorage and, by the friction between adjacent blade roots, helps to damp out axial blade vibrations. If the rotor rim corners are chamfered before inserting the blades, the locking part of the blade roots shoulders can be machined to facilitate removal.
Patent DE-2609616-A1 (DE)
Title: Electrical heating element for underfloor heating mat - has edges of heating mat given watertight seal by welding on elongated cap
Inventor: RUHNAU JOACHIM
IPC: H05B3/28
Filed: 1976-03-09
Abstract: The heating element may be used in underfloor heating mats. It has conductors which are mounted on a backing foil which is made of hydrophobic material and which can be welded. The edges of the heating mat are given a water-tight seal by means of cap-like protecting foils which are welded over them. The electrical connections are led out at the sides parallel to the welding seam between the heating element and cap. The space inside the cap is filled with a water-free adhesive to seal around the connections.
Patent DE-2610638-A1 (DE)
Title: Treatment of sulphide contg. effluent waters with carbon dioxide - to give prod. with high hydrogen sulphide concn. suitable for sulphur recovery
Inventor: ROLAND KLAUS
IPC: C02F1/66
Filed: 1976-03-13
Abstract: Sulphide-contg. effluent water is treated with CO2 in counterflow in a multi-stage process whereby in a first stage the effluent is contacted with CO2 from the subsequent stage at a pressure of 2-7 atmos., the pressure is reduced to 0.3-1.5 atmos. and in a second stage the effluent is treated with a virtually stoichiometric amt. of CO2 from the subsequent stage (measured on total sulphide sulphur in the effluent), after which excess CO2, contg. small amts. H2S, is drawn off and in a third stage the effluent is treated with 1.5-5 times the stoichiometric amt. of fresh CO2. Provides a relatively cheap treatment with reduced energy consumption. The sulphide is recovered as gaseous H2S in high concns. allowing further processing to sulphur in a Clause unit. The sulphide concn. of the treated water is so low that it can be used directly without further treatment.
Patent DE-2611913-A1 (DE)
Title: Thermoelectric prodn. of hydrogen and oxygen - by decomposition of higher oxide and hydrogen iodide obtd. from oxide, water and iodine
Inventor: BEHR FRIEDRICH DIPL ING
IPC: C25B1/04
Filed: 1976-03-20
Abstract: Prodn. involves an electrolysis and a thermochemical stage. In an electrolytic cell, an oxide (I) of V, Sb, As, Se, Te, Bi or U, in pure form or as alkali or alkaline earth cpd., is reacted with water and (I) at the anode to the oxide (II) with a higher 0 content and HI, whilst, at the same time, the HI is electrolysed to H and I. (II) is then removed as bottom prod., aq. soln. or hydrate melt and decomposed thermochemically, with liberation of 0. The 0 and H are removed from the process and the other prods. are recycled to the electrolytic cell. High current densities can be used and the H over-voltage is relatively low. Decompsn. voltages of 0.2-0.6 V at very high current densities can be attained.
Patent DE-2622147-A1 (DE)
Title: Air duct fire damper - has adjustable sealing strip clamped between two part flanged frame
Inventor: MUELLER GOTTFRIED
IPC: A62C3/04
Filed: 1976-05-19
Abstract: The damper is fitted in a frame consisting of flanged parts. The cross section of the flanges is a triangle-shaped box and the connection of two adjacent frame parts is by angle pieces inserted into the hollow triangles as the corners and then bolted together. A sealing strip (30) of five resistant material is inserted between the faces of two adjacent flanges. Its position in relation to the edges of the damper blade can be adjusted in such a way that a reasonable sealing results without the damper blade jamming inside the duct. The inner edges of the sealing strips slightly project into the duct and the blade is provided on either face with a plate with angled edges which serve as a stopping surface for the closed position of the vane.
Patent DE-2623400-A1 (DE)
Title: Fibre lap guiding and compacting device - formed by guiding member with convergent and convex inlet opening and associated with guide tube having oval outlet opening
Inventor: HANUS MIROSLAV
IPC: D01H5/72
Filed: 1976-05-25
Abstract: Device for compaction and guiding lap between discharge and compaction rollers, respectively is formed by an inlet guide member provided at its end face with a concave guide face provided along its upper and lower edges with air venting holes and at its centre with a bore into which projects a guide tube whose other end terminates in a funnel shaped compactor. Used for stretching and carding synthetic fibres in a lap supplied to textile machines. Fibre lap is formed into a tow in which the fibres including staple or short fibres are uniformly distributed and guided.
Patent DE-2625488-A1 (DE)
Title: Portable electrical hot air igniter for open fires - has outlet drum with heater and slots for hot air deflection
Inventor: MAYER HORST
IPC: F23Q7/04
Filed: 1976-06-05
Abstract: The hot air igniter is used for starting gril type fires and for open wood firing, fireplaces. The igniter has a suction blower which blows air directly through an electrically heated incandescent body directly on the fuel to be ignited. Igniter outlet distributes the hot air to ensure good igniting conditions. The outlet head (3) which is connected by air channel (2) with the blower determines the given direction of the hot air outlet. The outlet head (3) is a drum shaped housing accommodating the heater wires or similar heating elements. The drum has a number of air outlet slots (5) which can be covered and opened in required igniting directions by rotating adjustable slider with actuating knob (4).
Patent DE-2631811-A1 (DE)
Title: Spray outlet hanger for treatment tank - has recess to receive air line support arm and suspension hook
Inventor: SCHWAB MARTIN
IPC: A61H33/02
Filed: 1976-07-15
Abstract: A compressed air outlet grid (31) is suspended on the side of a bath or treatment tank by a fitting (26) on the side of the tank also used to support the air hose (30). The hose itself is supported by an elongated arm (10) which slides into a recess in the fitting. This arm is wider than the grid, and allows the hose to slide sideways. The hose has a smooth outside surface and is made of a material having a poor heat conductivity, and may incorporate a heat insulating lining. The fitting carries a hook for suspending the grid.
Patent DE-2645222-A1 (DE)
Title: Permanent magnet multipole rotor - comprising central ferromagnetic core with permanent magnet pole ring added externally
Inventor: WEHDE HEINZ DR RER NAT
IPC: H02K49/10
Filed: 1976-10-07
Abstract: The application is typically to small synchronous motors, stepper motors, or magnetically meshing gear drives. The construction of the rotor is simplified by using a central cylindrical core of a soft magnetic material, for example iron, and covering this with a permanent magnet plastic layer polarised as required. The permanent magnet layer may be a ceramic oxide, or a rare earth compound. It may be sprayed or cast onto the central core. Alternatively, it may be produced in the form of a sleeve or ring and threaded over the core. The layer has a preferred magnetisation axis in a radial direction and is subsequently excited to form the required permanent magnet poles.
Patent DE-2648891-A1 (DE)
Title: Adhesive tape mfr. using melt adhesives - by coating carrier with molten homogenised polymer and applying co-reactants or crosslinking agents
Inventor: SCHWAMEIS WERNER DIPL ING
IPC: C09J7/20
Filed: 1976-10-28
Abstract: The process comprises (1) heating >=1 polymer to 130-160 degrees C., (2) homogenising the polymer, esp. in a kneader, (3) applying the polymer to the carrier tape and (4) applying co-reactants or crosslinking agents to the coated tape so that copolymerisation or crosslinking takes place on the tape. Suitable polymers are e.g. butadiene-styrene, isoprene, natural rubber, chlorobutyl rubber and/or ethylene-propylene rubber. The polymers may be copolymerised with phenols and/or terphenols, or crosslinked with oxygen-, sulphur-, nitrogen-, urea-, urethane- or methylene bridges between the polymer chains. The co-reactants or crosslinking agents are applied to the polymer coated tapes e.g. from the melt or as a soln. or dispersion in an organic medium such as a mineral oil. The agents are applied to the polymer-coated tape e.g. by immersion or by spraying. Process allows adhesive tapes to be made without using solvents based adhesives, which allows high rates of prodn. and reduced environmental pollution. The method of application allows copolymerised or crosslinked polymers to be used in the adhesive layer without problems of poor storage of the polymer at elevated temps. The crosslinked adhesive layers have improved adhesive fatigue strength compared with uncrosslinked polymers, so that the tapes have a wider field of application than prior art tapes.
Patent DE-2651273-A1 (DE)
Title: Piezoelectric crystal grinding surface correction - has two diagonally opposite areas protected before etching remainder and lapping again
Inventor: BECKER ERHARD
IPC: H01L41/332
Filed: 1976-11-10
Abstract: The incorrectly ground piezo electric crystal has its sloping faces corrected by applying to two diagonally opposite front and rear faces a protective layer of etching medium resistant material (13,14) and etching away the non protected parts of the faces (11). The flat rectangular crystal is then lapped between two lapping discs (15,16). This protective layer can be applied over each surface as a U-shaped layer, with the base of the U being much wider than the parallel arms of the U. In another form, the layer extends across half the top face, then down one edge, then underneath, across the bottom face. The top layer is much wider than the bottom layer.
Patent DE-2656788-A1 (DE)
Title: Knife for peeling vegetables and fruit - has handle and pivot mounted blade with torsion spring in between
Inventor: PRACHT GUENTHER
IPC: A47J17/02
Filed: 1976-12-15
Abstract: The peeling knife has a handle (1) opposite which is a movable knife blade (10) with parallel axis. Parallel to the blade (10) and a little apart from it is a support. Between the blade (10) and the handle (1) is a torsion spring (23) pivoting the blade from its original position in the direction in which the spring is coiled. The blade has a pivot axles in the lengthwise centre axis of the support. The support is a roller the axle (6) of which is held by the handle (1). The blade (10) is held on an outward pointing flange (17) of a U-shaped bracket (9) between the two sides of which the support roller is pivot mounted. The cutting edge (26) of the blade (10) faces the middle piece (12) of the U-shaped bracket (9).
Patent DE-2701871-A1 (DE)
Title: Coupling fitting for two furniture panels - includes counter sink screw located by tapered slot in plug driven into other panel
Inventor: LUEBKING MANFRED
IPC: F16B12/20
Filed: 1977-01-18
Abstract: The coupling bolt is used to join two furniture panels (1, 3) at right angle has a cylindrical portion (2) which is provided with radial taper grooves (6). When the bolt is pushed into a blind location hole on one of the panels, the teeth formed by the tapered grooves (6) form an anchor. The protruding end on the coupling bolt has a flat on one side and an axial slot with tapered sides. It locates inside a blind hole in the second panel (9). A fixing screw with a counter sunk head is then driven into the second panel (3) so that the counter sunk head is engaged in the tapered slot of the coupling bolt.
Patent DE-2705399-A1 (DE)
Inventor: KOBAYASHI SHUNSUKE PROF
IPC: G02F1/139
Filed: 1977-02-09
Abstract: In order to be able to prevent inhomogeneity, caused by change in orientation, in the display image of the device, in the field-free state the liquid-crystal molecules are inclined to the boundary surfaces by an angle of  theta 0, e.g. by 1-5 DEG , and the twisting angle  PHI of the structure differs from 90 DEG , e.g. 80 DEG  <  PHI  < 90 DEG . <IMAGE>
Patent DE-2707508-A1 (DE)
Title: Treating keratinous textiles with curable polythiols - and soluble inorganic cpds., to impart resistance to shrinkage and permanent press
Inventor: KILPATRICK DAVID JOHN
IPC: D06M13/252
Filed: 1977-02-22
Abstract: Treatment of textiles comprises applying to the textile a curable cpd. of formula (I): HOOC-R'R2-COO- (CmH2mO)n-OC-R2R'-COO x-H (I) (where R' = trivalent organic gp.; R2 = a residue contg. or comprising a cross-linkable thiol gp.; x is >=1; n is >=1; CmH2mO is a linear (un branched) oxyalkylene gp. where m is >=3, providing than when n=1, m is >=10 (these cpds. are disclosed in DT2436035), together with a compatible soluble inorganic cpd. in an aq. medium. The cpd. (I) is then cured. Used to render keratinous fibres, esp. wool, resistant to shrinkage and permanent-press without the need for a degradative pre-treatment, e.g. chlorination. The present treatments may be effected during the dyeing process, thus obviating a further treatment stage.
Patent DE-2710982-A1 (DE)
Title: Safety valve for railway tanker - has cams for simultaneous opening and spring stiffening of excess pressure and vacuum valves
Inventor: KRAMER ROLF DIPL ING
IPC: F16K17/196
Filed: 1977-03-14
Abstract: The safety valve is esp. for railway tankers. The valve housing accommodates an excess pressure and vacuum valves each with stem and plate. Each valve plate is spring loaded and rests against a seat and valve stems slide in guides. On emptying the tanker it is not necessary to open the domed cover. The safety valve housing (1) has a manually operated actuator for increasing the excess pressure valve (2) spring (6, 7) force. The vacuum valve (3) is moved away from its seat at the same time. The valve has operating lever connected to the shafts (22, 23) for cams (2425) which exert pressure on each valve arrangement.
Patent DE-2721539-A1 (DE)
Title: Variable shape car seat - has adjustable side pads mounted on pivoted frame with ratchet to secure pad setting and spring loaded release
Inventor: GOELDNER WALTHER ING GRAD
IPC: B60N2/90
Filed: 1977-05-13
Abstract: The car seat squab is flanged by adjustable pads (3) on a U-shaped internal frame (13) with the frame hinged on the side of the seat frame. A ratchet secures the pad setting so that the shape of the squab is altered to suit the occupant. The adjusting control is set in front of the pads (24) and has a spring loaded release for the ratchet settings. The pad design can be applied to most types of car seat.
Patent DE-2723073-A1 (DE)
Title: Removable towing hook for car - incorporates self-locking catch projecting through gap in rear bumper
Inventor: RIEHLE HANS
IPC: B60D1/52
Filed: 1977-05-21
Abstract: The towing hook for the car is removable and is fitted to a mounting (5) located inside the rear bumper. The shaft of the towing hook locates over the mounting with a profiled fitting and a ratchet security. When not in use the hook is unclipped to present an unimpaired rear bumper. The coupling between the towing hook shaft and the mounting comprises a 'T'-shaped key slot and a sprung retaining clip. The mounting is secured on a bracket (4) inside the bumper to spread the towing load over the two anchorage points for the bumper.
Patent DE-2725970-A1 (DE)
Title: Combined mercury vapour and incandescent lamp - has filament support fastened to supporting stays at both ends to form stable unit
Inventor: BERTELMANN KLAUS DIPL ING
IPC: H01J61/96
Filed: 1977-06-08
Abstract: The combined lamp has a mercury vapour high pressure lamp in an outer envelope supported in a stand, and an incandescent filament surrounding the envelope. The stand and the incandescent filament form a stable unit, with the filament fastened by its both ends at supporting stays mounted on the unit. The stays are fastened in the unit current supply part and fix the filament support. The auxiliary ignition electrode is connected to the current lead stay (14) via an ignition resistor (21). The lamps filament support (1) is coupled to the heated element frame (12) via the rigid stays (9).
Patent DE-2729951-A1 (DE)
Title: Switching circuit with selection registers for telephone exchanges - has coupling panel responsive to central control mechanism for processing incoming dialling signals
Inventor: DUESING HANS-JOACHIM DIPL ING
IPC: H04Q3/48
Filed: 1977-06-30
Abstract: The signal transfer devices (UE1-UEN) are marked by a route searching device (UE-SU) prior to taking over a selection signal in one of the registers (REG1-REG7). A bundle marker (BM), which discerns original directions, provides the identification is coupled a number complementing device (ZR) which is arranged in accordance with the structure of each individual system. The number complementing device transmits a selection complementing signal into the specific register. This transmission is carried out in dependence on a program signal transmitted by the central control mechanism (ZST), and on individual register output signal (r1-r7). The complemented selection signal is preferably stored into the respective register.
Patent DE-2731603-A1 (DE)
Title: Barrel with separate head and foot rings - uses rings of highly flexible material for connection to body of barrel
Inventor: SIEBEL HELMUT ING GRAD
IPC: B65D8/10
Filed: 1977-07-13
Abstract: Abarrel is constructed with head and foot rings both of which are connected to the barrel cover metal (11) using an intermediate layer of a highly flexible section (14). This flexible section may be made of rubber or other suitable material. The highly flexible section (14) on one side adjoins the head or foot ring from the inside and is connected to it by a close fitting enclosure of the surface projecting inwards which forms a part of the ring, and on the other side is attached to the cover metal (15) so that it encloses its inner side. The attachment consists of a bordered over edge (17) and a pressed in projection.
Patent DE-2732999-A1 (DE)
Title: Probe for measuring dissolved oxygen in deep culture of microorganism - having membrane held by mounting screw with metal anode on stainless steel tube and noble metal cathode on glass tube
Inventor: OHASHI MINORU
IPC: G01N27/49
Filed: 1977-07-21
Abstract: Electrical O2 measurement probe is of the galvanic or polarographic membrane type and measures the O2 concn. in a liquid medium. It consists of a cathode, an anode, an O2 permeably membrane an electrolyte and an electrolytic cell. The anode is of metal e.G. Pb or Ag, and consists of a layer of this material on the inner surface of the metal cell up to a certain height. The cell is formed from a metal tube. This has an internal screw thread at the top which is used to mount the cathode tube. Further down it has an external screw thread to hold a metal sheath. The end is sealed by a membrane held by screwed cap. The inside contains the electrolyte and there is also an air vent hole inside the sheath in the tube wall. To measure the O2 content in liquids esp. in deep cultures for micro-orgisms. Provides an electrical probe which can be repeatedly used, the membrane of which can be easily changed, the cathode surface of which is kept clean or can be easily cleaned and the electrolyte of which can be easily changed.
Patent DE-2735728-A1 (DE)
Title: Assembling installation for bottles, glasses, etc. - has counter operating barrier and moving guide channel across conveyor belt to form sets
Inventor: GROCKE DIETHELM
IPC: B65B21/04
Filed: 1977-08-08
Abstract: The equipment assembles a multilple-row set of items such as bottles, having an L-shaped guide channel sliding at right angles to a conveyor belt so that one arm permanently communicates with the feed conveyor, while the other discharges into one of several parallel tracks on the belt. The first part of these tracks adjacent to the channel forms a first magazine. At the end of the channel is a counter, emitting an indexing impulse when a predetermined number of bottles is reached. This actuates a barrier at the channel end halting the bottles, and a drive sliding the channel for the width of a track.
Patent DE-2735890-A1 (DE)
Title: Calendar switching mechanism - has month revolution shaft and double further turning of shaft via differential gearing
Inventor: MERKLE PAUL
IPC: G09D3/12
Filed: 1977-08-09
Abstract: The additional further turning of the second drive shaft of the differential gearing is controlled by a cam drum which is displaced axially by a certain amount for each revolution. On the other hand, according to a different helical path principle, the blocking lever (15) of this additional drive is swivelled out and in. The main gearing consists of the differential gearing made up of the flange of a shaft with internal toothing and of a gear with a shaft and hollow shaft with flange, other gears being mounted rotatably on its bearing pin.
Patent DE-2737158-A1 (DE)
Title: Appts. for butt jointing rubber strips - has pair of movable strip supports with adhesive coating plate for butt ends and blast pipe for heating adhesive
Inventor: ANDERS UWE DIPL PHYS
IPC: B29C65/52
Filed: 1977-08-18
Abstract: Appts. for butt welding moulded rubber strips comprises a pair of supports whose configuration corresponds to that of the strips. The support are displaceable towards one another after the faces of th strips to be joined have been coated with an adhesive using a plate and blast pipe with ends directed at the ends of the strips to be joined. Used for jointing (un)vulcanised rubber strips in butt manner and in e.g. mitre formation to produce window sealing strips. Appts. permits speedy, accurate formation of joins whilst spoilt joins are eliminated.