baber/WOPTO huggingface dataset:
Patent DE-2444909-A1 (DE)
Title: Peak-load gas turbine operating system - passes after-cooling and scavenging air through coldest heat exchanger part
Inventor: SCHWARZ THEODOR
IPC: F02C7/08
Filed: 1974-09-19
Abstract: The combustion air is stored in reservoirs during low load periods and is delivered, via heat exchangers supplied by the burnt gases to the combustion chamber system during operating periods. Air required for after-cooling of the gas turbine (10) and for scavenging the combustion chamber system (9) passes, before reaching them, through the coldest part of the heat exchanger tube bundle (7), inside it and in the opposite direction to the flow when under load. After-cooling and scavenging air can be supplied from a receiver (5) via a pressure-reducing valve, before entering the heat exchanger tube bundle, so that all parts of the latter are evenly cooled and scavenged.
Patent DE-2450868-A1 (DE)
Title: Grinding tube for ball mill - feed body in form of pusher device has interconnecting, externally tensionable sections
Inventor: GAEMMERLER HAGEN
IPC: B02C17/14
Filed: 1974-10-25
Abstract: A grinding tube for a ball null with a feed body constructed in the form of a pusher body has the feed body made up from at least three interconnectable insert sections which make contact with the inner wall of the grinding tube when they are in their operating position. The interconnectable insert sections can be tensioned together by means of a tensioning device which is operated from outside the grounding tube. The edges of the inserts contact each other by means of a groove and spring arrangement. The feeding body is securely fixed in the grinding tube so that it does not revolve even at high milling speeds.
Patent DE-2455626-A1 (DE)
Title: Signals transmission method - operates between points with large potential difference or in areas with strong electromagnetic fields
Inventor: LANZ OTTO DIPL ING
IPC: H04L25/49
Filed: 1974-11-23
Abstract: A light source is modulated with the signal to be transmitted, and the light signal is reconverted in the receiver. Keying ratio modulation is used, in which pulse width and spacing are variable. Only short pulses corresponding to pulse edges are transmitted instead of the pulse train proper. One of the short pulse parameters is so marked, that the receiver can identify positive and negative pulse edges, so that the initial pulse train and the signal are reconstructed. The integrator (A, C, R1), the emitter coupled Schmitt trigger (T182, R2/R6) and the feed-back (T3, R788) cause a square wave current to appear at the collector of the output transistor (T2) with a scan relationship proportional to the input voltage (Ui).
Patent DE-2458305-A1 (DE)
Title: LED socket with grid guides for wires - mounts vertically or norixontally onto suitable mounting surface
Inventor: FISCHLE FRIEDRICH
IPC: H05K7/10
Filed: 1974-12-10
Abstract: The socket of the light emitting diode has a wiring guide block (1) with two longitudinal holes (2) for the wires in the centre of a standard wiring grid cell. The holes terminate in two parallel longitudinal slots (3) at the rear of the socket. The lateral slot walls (4, 5) have grooves running in the direction of the holes and perpendicular to the slots themselves. The centre wall (7) between the two slots may have a wire guide groove at right angles to the slots, whose base forms the rear with respect to the spacing (R). The bases of the slabs and grooves are typically on the same plane.
Patent DE-2460966-A1 (DE)
Title: Semiconductor component with lateral transistor structure - has base zone with lateral impurity gradient producing drift field
Inventor: JAKITS OTTO DR
IPC: H01L29/10
Filed: 1974-12-21
Abstract: The semiconductor component with a lateral transistor structure can form an individual transistor or an integrated circuit. The base zone has a lateral impurity gradient actuating a drift field for the charge carriers injected at the emitter. Directly under the base zone, the collector zone, and the emitter zone is preferably a highly doped zone of the same conductivity as the base zone. The lateral impurity gradient may be produced in the base zone by ion implantation, using a mask with a lateral gradient of thickness. This mask may be formed by an oxide film of specified thickness gradient. The highly doped zone may be also produced by ion implantation.
Patent DE-2503317-A1 (DE)
Title: Pretreatment of nickel prior to a plating treatment - using mixt. of sulphuric, phosphoric, nitric and acetic acids
Inventor: BUETTNER ULRICH
IPC: C23C18/18
Filed: 1975-01-28
Abstract: Process for the chemical activation of the surface of a body consisting of nickel or a Ni alloy, as a pretreatment before electroplating or electroless plating, esp. the deposition of Ni using an activating soln. The activation soln. is an acid mixt. of, by vol. (a) 5-15% H2SO4 (98%) with (b) 5-15% ortho-phosphoric acid (89%), (c) 25-35% NHO3 (65%) and (d) 40-60% acetic acid (99%). The pref. mixt. contains 10% (a); 10% (b); 30% (c) and 50% (d); it may also contain 0.1 g/l PdCl2 or 0.1 g/l AgNO3. The pref. working temp. is 20-90 degrees C., esp. room temp., for 5-30 seconds, esp. 10 seconds. Method removes passive layers on nickel prior to coating.
Patent DE-2506650-A1 (DE)
Title: Photo-polymerisable compsn for dentistry - contg monomer, pref a dimethacrylate, photo-polymerisation catalyst, radical-forming thermal catalyst and accelerator
Inventor: NATH GUENTHER DR
IPC: A61K6/083
Filed: 1975-02-17
Abstract: Photopolymerisable compsn. for dentistry contains (a) a photopolymerisable monomer, esp. a dimethacrylate, (b) a photo-catalyst which causes complete monomer polymerisation up to a layer thickness of several mm. by continuous irradiation in wave-length 3000-4200 angstroms, (c) a radical-forming thermal catalyst and (d) an accelerator which activates the thermal catalyst, so that the monomer polymerises already at room temp. also without irradiation by UV light. The polymerisation velocity caused by catalyst (c) and accelerator (d) is smaller by at least 2 power factors compared to the case when the photo-polymerisable compsn. is irradiated up to a thickness of 1 mm with radiation having wave-length 3600 angstroms and power density 100 mW/cm2. Compsn. is used filling material for cavities and for building up edges. After mixing components (a) and (b), the compsn. can be worked for several hrs. in a low-viscosity condition. Moment of pre-hardening is arbitrarily determined by UV irradiation and can be carried out within a few secs.
Patent DE-2509030-A1 (DE)
Title: Electronic contact switch for light circuits - has one or two supply wires and one leading off wire and has voltage limiter
Inventor: POHL JOACHIM
IPC: H03K17/725
Filed: 1975-03-01
Abstract: There is a high resistance rectifier stage as the control part, with two contact surfaces and several voltage dividing resistorsand a following analogue store, by which a triac triggering circuit is indirectly controlledcurrent. A switching amplifier (10-15) in the power part (II) is operated by the control part (I, I') of a main or auxiliary station rectifier bridge (26) externally controlled by a transistor (23) changes its resistance, thus affecting the triac (31) triggering circuit which controls the load current by phase shifting control.
Patent DE-2511957-A1 (DE)
Title: Radioactive waste removed from power station in final containers - after solidification to final form within shielded area
Inventor: BAATZ HENNING DR
IPC: G21F9/16
Filed: 1975-03-19
Abstract: A method of removing radioactive wastes from nuclear power station consists of bringing the receiving (disposal) vessels into the power station, filling them while there with the radioactive waste and also injecting them with a solidifying agent, and then removing the disposal vessels with the hardened contents to the final storage place. While in the power station, the vessels are pref. surrounded by a transportable shield, inside which these operations are carried out. The method is suitable for all kinds of radioactive waste disposal, but esp. for removing ion exchange resins of medium activity. For use with water-cement, bituminous synthetic resin, glass or low-melting metal solidifying agents.
Patent DE-2514414-A1 (DE)
Title: Inking roller axial adjustment system for ink distribution - stroke movement adjusted steplessly during operation
Inventor: BARROIS CLAUS
IPC: B41F31/15
Filed: 1975-04-02
Abstract: The inking rollers on a printing machine are moved axially to-and-fro to ensure proper distribution of the ink in the roller system and the stroke of this movement can be varied steplessly during operation. An external cylinder top (12) can be axially displaced and rotated in a housing (1) rigidly connected to a side frame. An inner cylinder top (20, 21) rotates within the outer top incorporating an articulated head (22) which is power connected to an angle lever (26) via a rod (25A). A drive cylinder (30) is rotatably mounted in the housing and contains the angle lever (26) rotatable about an axle(28). One leading side (26A) of this lever carries a thrust rod head which is power-connected with a shaft end of an inking roller by a system of levers (40) with the roller mounted on both sides in the side frame (2).
Patent DE-2522166-A1 (DE)
Title: Secured data transmission method - is between two or more movable stations and central station over one channel
Inventor: EICHLER PETER
IPC: H04L1/00
Filed: 1975-05-17
Abstract: Confidential data transmissions are made at a particular frequency (f1) between a central station (1) and a number of satellites (2, 3, 4) each containing a transmitter and a receiver (S/E). Calling and data telegrams use a fixed block length. If the information to be transmitted cannot be fitted in one block, it is divided into two or more blocks of standard length, each of which is secured against transmission interferences and provided with information on information distribution, the transmitting sequence and the transmission address. Transmissions and receptions are made by a cyclic rotation method.
Patent DE-2522428-A1 (DE)
Title: Non-dispersive infrared gas analyser - has dual channel radiation absorption system with differential amplifier output
Inventor: HUMMEL HEINZ DR RER NAT
IPC: G01N21/37
Filed: 1975-05-21
Abstract: The non-dispersive Infrared analyser comprises two Infrared sources with reflectors focussed onto a motor- driven rotating grating which modulates the equal-amplitude and equal-phase beams. The radiation in the measurement channel passes through the rest cell containing the specimen gas and via a reflector system to a detector chamber. Infrared radiation from the second, control source passes through a sealed cell filled with a gas unaffected by IR e.g. Nitrogen, through the deflection system and on to the detector chambers. A perforated electrode in the control channel and a sensitive membrane in the test channel are connected to an amplifier whose output drives an indicating instrument.
Patent DE-2528513-A1 (DE)
Title: Ester lubricating oils prepd from cyclic polycarboxylic acids - for use in two stroke engines
Inventor: ZEPF WALTER
IPC: C10M169/00
Filed: 1975-06-26
Abstract: Lubricants contg. (A) polycarboxylic acid ester(s) of low volatility which are liquid at room temp., (b) high-pressure additive(s), (C) corrosion inhibitor(s) and opt. (D) other usual additives. Used as motor or gear oils, and esp. in two-stroke engines, mixed with the fuel in ratio of at least 1:200. Compsns. can be used at dilutions of below 1:100 instead of the usual 1:20-30, while giving satisfactory lubrication under all loads. Problems of rapid spark plug wear are much reduced or eliminated. Smoke emission and water pollution, e.g. from boat engines, is reduced. Suitably the ester is derived from tri-or pyro-mellitic acid and/or a cyclo-octene tetracarboxylic acid, and a 5-10C alkanol e.g. the 2-ethyl hexyl ester of 1, 4-etheno cyclohexane tetracarboxylic acid.
Patent DE-2530939-A1 (DE)
Title: Medical inspection device with second eyepiece - has two viewing tubes at right angles enabling second person to view patient
Inventor: STORZ KARL
IPC: A61B19/00
Filed: 1975-07-11
Abstract: The medical inspection device for eg. nmose cavities, has an eyepiece (13) suspended from a headband (15) worn by a surgeon. It has a fibreglass light conductor (12) suspended in front and a second eyepiece (7) so that another person, e.g. a student, can also use the instrument at the same time. In line with the viewing tube and viewing hole (2) through the concave mirror (3) for the surgeon, is a partly transparent prism, and at right angles to this viewing tube is a longer viewing tube (9) with one end towards the prism, and the other end carrying the second eyepiece (7). Thus the second viewer is alongside the first viewer, at the same level.
Patent DE-2544208-A1 (DE)
Title: Stabiliser for belted ammunition in ammunition boxes - has guide rods preventing tangling of belt when tilted or shaken
Inventor: WALLWEY ERICH
IPC: F41A9/79
Filed: 1975-10-03
Abstract: The munition container for belted cartridges and ammunition is used for automatic firearms. The ammunition is stacked in layers. The belted cartridges, especially of small calibre, can be stacked up to any level in an ammunition container in layers. No tilting or tangling of the belt is possible. This ensures that even frequent shocks and shaking and a tilting ammunition box do not tangle the cartridge belt. Rods (6) are arranged parallel to the bottom (1) and the longitudinal walls (2, 3) of the container at distances corresponding to one or more belt layers. The ends of the rods are guided in slots (5) on the narrow ends (4) of the containers. The guide slots (5) are directed at an angle downwards from the longitudinal walls (3) to which the bullet ends (6) are pointed. The distance between the rods (6) corresponds to a depth of five to seven belt layers.
Patent DE-2544657-A1 (DE)
Title: Extended foundation for pillars or walls - is fitted into a borehole and provided later with projecting reinforcement
Inventor: WALTHER RENE
IPC: E02D27/10
Filed: 1975-10-06
Abstract: The foundation components such as column and pile bases are placed into excavated holes or trenches and they are extended after insertion by reinforcement for accommodating high vertical forces. No reentrant excavations are made which could reduce the stability of the excavation. A reinforcement connector is placed at a certain height above the borehole bottom. The hole is filled with concrete and the reinforcement connector forms an integral part of the foundation. Subsequently the column is placed into the borehold and rests on the stand formed. Ground is excavated around the foundation made and projecting reinforcing members are fastened to the connector. Concrete is subsequently poured around the base for extending it. The reinforcing members can be screwed into the base or welded to the projections in it.
Patent DE-2548254-A1 (DE)
Title: Injection moulding curved lengths of tubing - using withdrawable curved core and moving cylinder for double mould
Inventor: SCHITTELKOP VOLKER
IPC: B29C45/26
Filed: 1975-10-28
Abstract: Curved lengths of extruded tubing, and particularly those bent through 180 degrees, are produced by moulding in a space between a core and a die/punch mould, opening the mould and withdrawing the core from the tubing produced. Whilst the mould is being opened a cylinder part of the core is removed from the tubing, the tubing is held, and the other part of the core is rotated through 24 degrees, thus removing it from the interior of the tubing. Finally the curved part of the core is completely withdrawn spirally from the tubing which is tilted, and the withdrawn end of the curved core moves past the tubing. Quick action, mechanised operation.
Patent DE-2548852-A1 (DE)
Title: Flexural oscillator input conductivity frequency dependence determn. - using four element series and parallel resonant electrical equivalent circuits
Inventor: TRAUB KARL ING GRAD
IPC: H03H9/46
Filed: 1975-10-31
Abstract: The method is used to determine the frequency dependency of the input conductance of a flexural oscillator system. The equivalent circuit consists of a series combination of a parallel resonant circuit and a series resonant circuit, each contg. an inductive and capacitive element. Three equivalent circuits are connected together to represent four flexural oscillators, each corresp. to a quarter of the oscillation wavelength. The junction points of the individual circuits are equivalent to those of the mechanical system, and the four coupling frequencies may be easily determined. The input conductivity frequency dependence is then determined from these measurements and the known circuit characteristics.
Patent DE-2559379-A1 (DE)
Title: Non-stick coatings for paper, films or fabric - comprising vinyl terminated linear polysiloxane, vinyl siloxane cross linker and catalyst
Inventor: MONTIGNY ARMAND DE DIPL CHEM D
IPC: C09J7/04
Filed: 1975-12-31
Abstract: Compsns. for coating of paper, film or fabric comprise: (a) 4 pts. wt. of a vinyl-end-stopped linear polyorganosiloxane of viscosity up to 500 cP; (b) 0.5-1.5 pts. wt. of a crosslinking agent contg. Si-vinyl and SiH-units; (c) a diaziridine; and (d) a Pt complex. Component (b) consists of molecules having =10 Si atoms linked together by O atoms. The 2 reactive gps. lie adjacently in the same mol. and the residual Si valencies are attached to Me gps. The siH gps. are present in a proportion of from 1:1 to 2.5:1 in relation to the total amt. of Si-vinyl units in the mixt. The amt. of metal in (d) is up to 0.01 pt. wt. based on 100 pts. wt. of the mixt. and the amt. of (c) is 75-250 times the amt. (d). Used for prepn. of papers, foils, fabric belts, etc having a non-adherent surface film (to which adhesives do not stick). Fully satisfactory films can be applied without use of solvents. In an example, a mixt. of 970 g vinyl end-stopped poly Me-siloxane, 1.8g. Me-Et-diaziridine and 2 ml Pt complex (contg. 25.6 mg Pt) was stirred with 240 g of a crosslinker of formula H.SiMe2.O.X5.5Y2.2 SiMe2H where X = SiHMeO-and Y=Si(CH:CH2) MeO. Applied by doctor to Kraft paper it gave a satisfactory film on curing for 20s at 150 degrees C.
Patent DE-2607213-A1 (DE)
Title: Locking device for nut has axially serrated sleeve - engaging both nut and adjacent abutment
Inventor: BLUMENSTEIN FRITZ
IPC: F16B39/10
Filed: 1976-02-23
Abstract: The locking device for a nut (3), screwed along a screw-thread against an abutment (2) fast on the screw (1), has a sleeve (4) surrounding adjacent portions of the nut and the abutment. The sleeve is pressed into engagement with axial serrations of the nut and the abutment, thereby securing the nut. The engagement may be established by forcing the unserrated sleeve into the free ends of the serrated nut and abutment. Alternatively the serrations may be provided in the sleeve so as to cut their way into the nut and the abutment when the nut is tightened.
Patent DE-2608807-A1 (DE)
Title: Theft preventing device for skis - has two part lockable saddle with adjustable length steel cable loop
Inventor: BOESE HERBERT
IPC: A63C11/00
Filed: 1976-03-04
Abstract: Device for securing skis and ski poles to a solid anchoring point to prevent theft, consists of a two-part lockable saddle /1/ and /1a/ with semicircular recesses, which, when the two parts are placed together form two circular openings. In the middle of the saddle one part has a hole /10a/ to accommodate the body of a cylinder lock /10/. The other part is provided with a blind hole /21/ with an undercut extension to take up the locking bolt /25/ of the cylinder lock. On the extreme ends the saddle is fitted with plain holes /20/ on one side and with composite square holes /18/ on the other side. Through these holes a steel cable /4/ is threaded in loop form. The cable has a number of fixed lugs /17/ which are sized to pass through square holes /18/.
Patent DE-2608830-A1 (DE)
Title: Gas laser with closely limiting side walls - uses discharge chamber as waveguide whose surfaces are formed by two concentric cylindrical shells
Inventor: OPOWER HANS DR
IPC: H01S3/0975
Filed: 1976-03-04
Abstract: The discharge chamber of the gas laser is formed by closely adjacent walls so that it acts as a waveguide for the laser radiation. The waveguide surfaces are equidistant and extend transverse to the radiation direction in a manner exceeding their spacing. The laser resonator is formed by mirrors. The resonator arrangement either uses flat mirrors directly connected to the discharge chamber, or concave mirrors at a given distance from the discharge chamber. The waveguide surface from shells of two concentric cylinders. Preferably the resonator consists of concave toroidal mirrors. The laser gas may flow through the waveguide in the direction of the cylinder axis. Alternately the gas may flow orthogonally to the axis, the waveguide surfaces having perforations for the gas passage.
Patent DE-2615176-A1 (DE)
Title: Pipe union for drinking water main - has expanding sleeve inserted into main pipe wall opening
Inventor: NEHER HANS
IPC: F16L41/08
Filed: 1976-04-08
Abstract: The pipe union is partic. for connecting a high-press. drinking water main to a branch pipe, e.g. a drinking nozzle for a cow etc. It has an expanding sleeve (20), which is inserted part of the way into the main pipe wall opening and then expanded to give a positive grip. The sleeve can also act as a seal, and there can be a further seal enclosing it and pressed against the outside of the main pipe, using a nut screwed onto the sleeve.
Patent DE-2615849-A1 (DE)
Title: Vehicle diesel engine switch off device - has spring:return air actuators for injection control and exhaust brake via solenoid valve in starter circuit
Inventor: SCHLADER MAX
IPC: F02D17/04
Filed: 1976-04-10
Abstract: The switching-off mechanism is intended for a diesel engine of a commercial vehicle with a compressed air source (1) which, via a valve (3), can be connected with two pneumatic actuator cylinders (4, 5) with spring-loaded pistons (6, 7), of which one cylinder, when pressurised, returns the injection pump control rod to the zero portions and the other closes the exhaust brake valve. The solenoid valve is arranged in an electrical circuit which is closed when the engine is switched on or started and which contains a further interrupter switch. When the switches are in the 'on' positions, the valve disconnects the air supply and allows the cylinders to exhaust to atmosphere under the action of their springs.
Patent DE-2619525-A1 (DE)
Title: Two stage liquid film evaporator - with centrifugal dispersion of fluid in each stage
Inventor: MARTSCHENKO ALEKSANDR NIKOLAEV
IPC: B01D1/22
Filed: 1976-05-03
Abstract: A vertical evaporator is equipped with means for introduction of dispersed fluid throughout the heat transfer area. Any number of dispersion and evaporation stages may be employed and the device described uses two stages. For concentration or distillation of temperature sensitive products and for chemical reactions in the manufacture of intermediates for plastics, microbiological and pharmaceutical products. Evaporation occurs at maximum rate at the point at which droplets impinge on the heat transfer surface, therefore rather than introduce the liquid at the top of the heated wall and let it fall in a film, the rotor distributes droplets throughout the wall area. The vapour stream has to pass through the rotor in order to escape, hence any entrained droplets are extracted centrifugally from the vapour at this stage.