baber/WOPTO huggingface dataset:
Patent DE-2549505-A1 (DE)
Title: Automatic connection of tubes to heat exchange tube plate - producing bond resistant to mechanical stress and not requiring butt welding
Inventor: RAFFIN ENZO
IPC: B23P11/00
Filed: 1975-11-05
Abstract: Automatic process for connecting a tube to a heat exchange tube plate provided with bores at least one of which leads to a connecting point at the edge of the panel, is carried out in three stages: an annular rim is formed on the surface of the tube at a preset axial distance from one of its ends; this end of the tube is introduced into the above bore to a depth equal to the axial distance so that the rim abuts against the connecting point of the tube plate; and the rim is fusion welded without adding any matl. to the connecting point of the tube plate.
Patent DE-2601557-A1 (DE)
Title: False ceiling for offices - has down pipes from ceiling air duct to bottom end outlet slots and raster grid of straps with pipes at intersections
Inventor: SCHMIED SIGURD ING GRAD
IPC: F24F13/02
Filed: 1976-01-16
Abstract: False ceiling suspended from a permanent ceiling has means to introduce air to the office space below. Pipes (5) depend from ventilation ducts in the ceiling and terminate in air outlets air bottom end. The suspended ceiling has a grid of strap member (1,2) which intersect one another, with the pipes at these crossing points (3). The pipes should be at least partly flexible, pref. at the two ends top and bottom. Bayonet fastenings couple up the top ends of the system pipes, with slot nozzle boxes as ventilators at the bottom end of each of the several pipes. Electrical service lines are laid inside or along outside the pipes, down to plug sockets or end box at lower end of pipes.
Patent DE-2603978-A1 (DE)
Title: Hydraulic pit prop valve system - includes safety valve at top of upper section to oppose sudden pressure from above
Inventor: KOPPERS MANFRED
IPC: E21D15/44
Filed: 1976-02-03
Abstract: The hydraulic pit prop with a lower tube (2) which slides inside an upper portion (1) has a piston (3) between them. It has a shallow inverted cup-shaped cap (12) on the upper portion, located immediately above a stop valve (9) designed to oppose sudden pressure applied to the cap (12). This stop valve has a funnel-shaped seating (9) which is blocked by ball shaped or tapered spring loaded plug (7). This communicates with the pressure chamber (10) underneath. The cross section of this chamber (10) is equal to that of the discharge opening at the bottom of the lower tube (2).
Patent DE-2605777-A1 (DE)
Title: Plug and socket connector for air pressure lines - has u:shaped bar insertable into transverse bores in socket to lock plug
Inventor: PETERS BERNHARD
IPC: F16L37/14
Filed: 1976-02-13
Abstract: The plug and socket connector is for air pressure lines in mining applications and has a socket (2) contg. two transverse bores (10, 11) into which the arms (14, 13) of a U-shaped locking bar are insertable. The arms engage an annular groove in the outside of the plub (1) to lock latter in position in the socket. The arms each have two opposite flat sides one of which engages the cylindrical bottom of the groove. The other two sides of each arm are convex of a radius fitting that of the bore. The radii of the latter sides are  the distance between the flat sides of the bar.
Patent DE-2613986-A1 (DE)
Title: Chain connector for scraper bar attachment - has renewable wearing attachment secured to middle part by fastener
Inventor: THIELE ALFRED DIPL ING
IPC: B65G19/22
Filed: 1976-04-01
Abstract: The chain connector esp. for attaching scraper bars to round link chains of scraper chain conveyors. The middle part of the yoke shaped connector is provided with a wearing enlargement which is sliding inside guides of the conveyor pans. The wearing enlargement on the middle part (9) of the connector is formed by a detachable and renewable attachment (10). The renewable attachment (10) is made from a material of a higher wearing resistance and the connector (1) from a material of a higher tensile strength. The renewable attachment (10) is a clamp which with its centre part (13) forms the wearing enlargement and which with its side parts (14, 15) is embracing the middle part (9) of the connector. The side parts (14, 15) are tensioned against the connector by fastener (18) such as a bolt or a rivet.
Patent DE-2618174-A1 (DE)
Title: Pliers for electrical conductors - uses two legs carrying two interacting jaws provided with cutting edges
Inventor: MARTIN ARTUR
IPC: H02G1/12
Filed: 1976-04-26
Abstract: The two legs of the pliers have a hinged connection to one another by means of a pin. the legs have at their tops ends bent parts which can be provided with cutting edges facing one another. When the pliers are closed the cutting edges make notches on the sheath of the conductor, enabling the sheathing to be detached from the conductor core by means of the pliers. One leg has above the pin a screw forming an adjustable stop for the leg on the other side. The screw can be locked by a check nut.
Patent DE-2625138-A1 (DE)
Title: Perspective drawing instrument with three discs - has spindle with two fixed end discs and larger sliding centre disc
Inventor: GONZALEZ ESTEBAN
IPC: B43L13/14
Filed: 1976-06-04
Abstract: The perspective drawing instrument has three round discs (c, d), through whose centres a spindle (b) passes. Two of the discs (c, c) are fixed to the spindle ends, while the third and larger one (d) slides between them. The spindle ends are movably mounted in a ruler body (a), so that it can tilt about the central disc. The latter forms a guide track with one of the outer ones. The equipment avoids the need for a large drawing board, nor is it necessary beforehand to determine the alignment and datum points.
Patent DE-2625693-A1 (DE)
Title: Bulk material conveyor fur unloading ships - has bucket chain running round stationary drum at base of elevator
Inventor: POHL PAUL
IPC: B65G67/60
Filed: 1976-06-08
Abstract: The bulk material conveyor comprising one or more scraper conveyors and an elevator. The scraper conveyor has a bucket chain (14, 15) running round two wheels, whose mounting at the base of the elevator (2, 3) is a stationary drum with a discharge opening. The drum can be of larger diameter than the wheel (12, 13) at the forward end, and the wheel can be mounted on the end of a bucket ladder (6, 7) pivoting on the drum axis trunnions. The bucket chain can be driven by two sprockets concentric to the drum, joined to each other alternately by ribs and filling funnels, the ribs and funnels forming a sealed joint with the drum as they slide over it. There can be a bucket on the chain for each funnel.
Patent DE-2630009-A1 (DE)
Title: Tank storage installation for liquefied gas - has vessel for temporary storage under high pressure during peak gas flow
Inventor: PUKLAVEC VLADIMIR DIPL ING
IPC: F25J1/02
Filed: 1976-07-03
Abstract: A tank storage installation for liquefied gas includes a stock tank in which the liquefied gas is stored at a temp. below that of the ambience, a compressor installation connected by a suction line to the stock tank, and a refrigeration plant connected via a collector and a detenter to a line feeding back to the stock tank. A pressure vessel is provided which can be connected to the refrigerating plant in the event of the total gas press. in the stock tank together with the flash gas from the feed line, temporarily exceeding the cooling capacity of the compressor and the refrigeration plant. The pressure vessel has such a storage capacity that it can take the whole of the condensate produced from the gas and store it temporarily, yielding it for detenting and transfer to the stock tank only when the amt. of gas to be drained from the stock tank once again comes within the capacity of the cooling installation.
Patent DE-2630338-A1 (DE)
Title: Combined chemical and mechanical screw thread locking - uses grains of carborundum embedded in synthetic resin coated under bolt head
Inventor: MENKHOFF KARLHEINZ
IPC: F16B39/24
Filed: 1976-07-06
Abstract: The method of locking screw threads uses a combined chemical and mechanical fixing. The metal surfaces which lie under the nut or the head of the bolt are coated with a synthetic resin which is mixed with grains of carborundum. The bolt or nut is tightened and the resin allowed to harden. The grains of carborundum are forced in the mating surfaces and so offer a very high resistance to any slackening of the nut of bolt. Tests show that the torque required to undo a nut or bolt, which has been locked in this way, is increased by 50%. If the resin is allowed to harden fully over 24 hours the increase in torque is 75%.
Patent DE-2635788-A1 (DE)
Title: Fluorosiloxane rubber resistant to heat and frost - prepd. by catalytic polycondensation of poly-perfluoroalkyl-alkoxy-phenyl methyl-siloxane diols
Inventor: PONOMAREV ALEKSEJ IVANOVITSCH
IPC: C08G77/44
Filed: 1976-08-09
Abstract: New fluorosiloxane rubbers have formula (I) (where Rf is -OCFo, -OC2F5 -OC2F4OCF3, -C2F4OCF3 or -C3F7, R is Me or Ph, index x = 1-0.97, y = 0-0.03, m = 370.9-1863.4, and n = 0-44.5) and av. mol. wt. 98000-410250. (I) are prepd. by catalytic polycondensn. of poly-((perfluoroalkyl(alkoxy)phenyl)-methyl-siloxane)-alpha, omega-diols having formula (II), corresp. to (I) where m = 2.3-187.2 and n = 0-3.8) and having average mol. wt. 620p51200, at 80-150 degrees C. Catalyst is a base or a complex salt of trifluoroacetic acid and piperidine. (I) are used in construction of appts. vehicles and aeroplanes. (I) are resistant to (i) heat, e.g. 370-415 degrees C, (ii) frost, e.g. have freezing point -65 to -71 degrees C, (ii) benzine and oil and are insoluble in, benzine, hexane, benzene, toluene, other non-polar solvents, acetone and mineral oils, (I) can be prepd. in high yields e.g. 98%.
Patent DE-2636077-A1 (DE)
Title: Control tube for oil dip stick - with rubber elastic sleeve placed on tube covering recesses made in it
Inventor: RUEBSAMEN WILLI
IPC: G01F23/04
Filed: 1976-08-11
Abstract: The dip-stick for a machine is immersed into the oil contained in the tube, and a rubber elastic sleeve with thin walls is placed on the tube. Its clear cross-section exceeds that of the dipstick section which is marked. The assembly comprises a central rod (1) with an end eye loop, a control tube (2) with a cut out section (3) which is covered over by the sleeve (4). The end of the tube is covered by a flat cap (5) with a central bore-hole to accept the rod (1).
Patent DE-2636776-A1 (DE)
Title: Open pit mine for mineral extraction from earths crust - has turning point area with radially extending bench and crusher and conveyors
Inventor: KOCHANOWSKY BORIS JULIUS
IPC: E21C41/26
Filed: 1976-08-16
Abstract: The open pit mine for the extraction of mineral materials from the earth's crust comprises a turning point area; at least one bench extending radially outward from the turning point area; a moble crusher for crushing mined mineral materials located adjacent the bench. A belt conveyor system for conveying the crushed mined mineral materials from the crusher to the turning point; and means for discharging the crushed mined mineral materials downwardly from the turning point are also provided.
Patent DE-2643892-A1 (DE)
Title: Two-stage transistor power amplifier - has coupling network to provide optimum impedance between drive and output stages
Inventor: SANCHEZ-HERMOSILLA LUIS ING GR
IPC: H03F1/32
Filed: 1976-09-29
Abstract: A power amplifier includes a coupling stage between the drive and output transistor stages to achieve an optimum relationship between distortion and power amplification. The drive transistor (13) and the output transistor (33) are of complementary types. The base of the output stage is connected over a voltage divider (31, 32) to the supply voltage (VB). The base of the drive stage is coupled across resistors to the supply voltage (VB). Between the drive and output stages is a coupling network consisting of coil (21) and resistance (22) that provides the optimum impedance.
Patent DE-2644167-A1 (DE)
Title: Self-healing wound capacitor - made of cellulose acetate layers interleaved with metal coatings and tempered
Inventor: KAMMERMEIER JOHANN DR RER NAT
IPC: H01G4/18
Filed: 1976-09-30
Abstract: A self-healing capacitor includes dielectric layers which have been produced by applying a lacquer to a carrier foil consisting of two metal coatings, interleaved with dielectric layers. The dielectric layers consist of cellulose acetate and the metal coatings have a thickness of 10-18 nm. The wound capacitor is finally tempered and is strengthened thereby. Such a capacitor requires only one 1.2 mu dielectric layer between the metal coatings. It combines a satisfactory self-healing property with a high volumetric capacity. Its mfr. saves much in costs for material and for labour.
Patent DE-2650784-A1 (DE)
Title: Automatic tape transport reversal system - allows continuous operation of single channel head by sensing full winding of tape and reversing drive
Inventor: TANAKA SHINSAKU
IPC: G11B5/55
Filed: 1976-11-05
Abstract: The automatic tape transport reversal, system runs the drive in opposite directions when the tape is fully transferred from one reel to the other. This allows a magnetic head for single channel operation to be used for continuous recording and playback of data in multi-channel operation. The tape drive moves the tape alternately in opposite directions. The sensor ascertains when the tape is fully wound up. The reversal device reverses the tape. The magnetic head can be vertically adjusted to alter its working height in conjunction with the sensor.
Patent DE-2656778-A1 (DE)
Title: Master-slave compass system - uses stepping motor and digital circuit to bring in alternative magnetic master in case of failure
Inventor: ENGELHARDT ERNST HENDRIK LODEW
IPC: G01C17/36
Filed: 1976-12-15
Abstract: A multi-compass system has a master compass and one or more slave compasses so arranged that if the master compass fails the slave(s) can be switched to operate from another magnetic master compass. The needle from the store is controlled by a stepping motor. A control circuit connects this stator winding to the master compass needle. A four quadrant multiplier is provided so that the step signal approximates to a sine wave which is used as a motor reference and excitation signal for the store motor. The stepping arrangement is digital and the number of connections are fixed for each degree of master compass needle movement.
Patent DE-2700697-A1 (DE)
Title: High yield microbiological prodn. of unicellular protein foodstuff - by aerobic yeast fermentation of ethanol in circulating medium
Inventor: SCHICK JOSEF HUBERT
IPC: C12M1/04
Filed: 1977-01-10
Abstract: Yeasts are cultivated in a fermentation zone under aerobic conditions, at 20-50 degrees C in a nutritive medium at pH 2.5-4, pref. 3.5. The medium also contains an acid phosphate and a nitrogenous substance in the presence of oxygen. The nutrient medium is circulated continuously, by injecting 1-7 mm pref. 3 mm bubbles of oxygen tangentially at a point in the circuit. The biomass produces is passed without formation of a gaseous plug, and is freed from gas at the exterior of the fermentation zone. The mixt. of gas, liquid and solids remains in the fermentation zone for 0.2-1 hour pref. 0.6 hour. Biomass produced is separated and dried to isolate the protein product.
Patent DE-2702060-A1 (DE)
Title: Zoom lens aperture mechanism - maintains constant F value for complete range of continuously adjustable focal lengths using coupled elements
Inventor: SHIMOJIMA MASATOSHI
IPC: G03B9/02
Filed: 1977-01-19
Abstract: A camera aperture mechanism is self-compensating for the focal length setting of a zoom lens, i.e. the 'f' value is maintained irrespective of the focal length even though the latter may be continuously adjustable. The adjustment of the aperture iris is mechanically controlled by adjusting rings lateral wedges and concentric rings which are all coupled together and to the zoom control. All mechanisms are housed in the barrel of the lens with its zoom components. It is suitable for both manual and automatic exposure control cameras.
Patent DE-2704401-A1 (DE)
Title: Noise screen wall for road or railway - has box element with side and rear locking grooves and perforated front section extensions
Inventor: STOEPEL ADOLF
IPC: E01F8/00
Filed: 1977-02-03
Abstract: The noise-absorbing element, for construction of noise screen walls along roads or railways, comprises housing with front (1), rear (2) and side walling pieces (3, 4) and a noise-absorbing layer (5) close to the front section. In erection, the elements are stacked between two vertical I-shaped supports on the base. At the joint with the rear walling section one sidewall has a full-height profiled groove (11) to lock onto a shank of the I-profile. The rear wall is extended beyond the opposite sidewall, with a similar groove (12) at the end. The front wall is extended, and perforated, beyond both sidewalls, and offset on at least one side to engage behind the extension of an adjacent element.
Patent DE-2707169-A1 (DE)
Title: Static converter for bidirectional DC motor - has special rectifier bridges allowing bidirectional load current flow through converter
Inventor: FUJIWARA MASAKATSU DIPL ING
IPC: H02P23/24
Filed: 1977-02-18
Abstract: The static converter, for eg driving a bidirectional motor, has the number of rectifying units reduced without affecting the 3-phase supply. This reduction is achieved by using rectifying units previously used for one direction only for both directions of load current flow. These bidirectional rectifying units (M1, M2) are connected to special rectifier bridges (F1, P4 and N1, N4) depending on the direction of load current flow. These special rectifiers are connected by their dc side to the rectifying units and by their ac side to the load - ie they lie between the load and the rectifying units.
Patent DE-2707988-A1 (DE)
Title: Chopper circuit for feeding multiple independent loads - uses gate controlled turn-off thyristor to operate without need for special commutating circuits
Inventor: AKAMATSU MASAHIKO
IPC: H02M1/06
Filed: 1977-02-24
Abstract: The circuit is primarily intented for the supply to multiple motor drives (6a, 6b). A chopper or interruptor (2) of solid state type controls the connection of a battery (1) to the variable terminal (SP) of an alternating output. The chopper is typically a transistor or gate controlled turn-off thyristor. For each load (6a, 6b) a separate series pair of oppositely poled devices, one controlled (4a, 4b) and one uncontrolled (5a, 5b), is provided, with one terminal of the load connected to the common point (Qa, Qb). The instant of switch on of power to the load is determined by the instant at which the controlled device (4a, 4b) is triggered with respect to the intermittent potential on the busbar (SP). Switch off is determined by the turn off of the chopper. An auxiliary turn off circuit (3) giving reverse bias to the bus (SP) may be added if necessary to ensure that all devices turn off.
Patent DE-2711108-A1 (DE)
Title: Biocidal triazolidino-pyridazine-di:one derivs. - esp. useful as fungicides in plant protection, paints, glues, cutting oils, paper, textiles, etc.
Inventor: GATTNER HANS DIPL CHEM DR
IPC: C07D487/04
Filed: 1977-03-15
Abstract: Triazolidino-pyridazine derivs. of formula (I) are new: In (I), n is 2, pref. 2 or 3; R1 is an n-valent organic residue; R2 is H or CH3; when n=2, R1 is divalent, opt. branched or cyclic 1-36 (1-6)C, alkylene (which is opt. substd. esp. by 1-4C hydroxy-, alkoxy- or alkylthio-alkyl or by halo), or a divalent up to 36, esp. up to 12C, aromatic, araliphatic or heterocyclic gp., opt. substd. esp. by 1-4C alkyl (itself opt. substd. by OH, halo, alkoxy or alkylthio), NO2, CN or halo; when n = 3, R1 is a trivalent, opt. branched or cyclic 3-36 (3-9)C aliphatic gp.; or cm up to 36, esp. up to 12C, aromatic, araliphatic or heterocyclic which can be substd. as above; or is a 1,3,5-triazinyl gp. (I) have fungicidal and bactericidal activities and are useful in plant-protection, and for protecting glues, cutting oils, paper, textiles. Esp. they are useful as paint fungicides because of their sparingly solubility and have a long-term effect. The melamine deriv. is esp. useful in paints.
Patent DE-2719609-A1 (DE)
Title: X=Ray tube for medical diagnostics or fluorescence analysis - giving pure spectrum of few monochromatic lines
Inventor: BAUER RICHARD DR
IPC: H01J35/04
Filed: 1977-05-02
Abstract: In an x-ray tube of anode and electron source, the x-rays used emerge in a narrow solid angle antiparallel to the direction of the incident electrons, with an angle of the aperture (cone) of 30 degrees, 20 degrees, esp. 10 degrees. The electron source can consist of a cathode and focussing electrode with rotational symmetrical configuration or several electron guns with this type of symmetry. The side of the anode towards the cathode is of multilayer construction, with at.no. and prod. of thickness and density of the various layer increasing with the depth. The tubes gives an almost pure spectrum of few monochromatic lines, without continuous radiation. It is useful in medical diagnostics and fluorescence analysis.
Patent DE-2726424-A1 (DE)
Title: Processing system for engines ensuring full combustion - utilises exhaust heat supplying process energy for ensuring stoichiometric combustion
Inventor: SCHULTZ WOLFRAM-FERDINAND
IPC: F23C99/00
Filed: 1977-06-11
Abstract: The reduction and oxidation system processes liquid and gaseous fuels. It ensures pref. optimum energy utilisation in motor vehicles and heating systems. The fuel and its mixtures are prepared before ignition to ensure that all commercial liquid and gaseous fuels and their polymers can be used in engines. Max. combination of all chemical components is ensured and also reduction of the toxic substances such as carbon monoxide. Fuel is prepared by utilisation of the exhaust gas energy radiation under given conditions. Energy is supplied here to ensure the complete stoichiometric combustion.
Patent DE-2726708-A1 (DE)
Title: Hinged skip tip locking mechanism - has skip stop released by lifting truck forks
Inventor: BAUER HEINZ-DIETER
IPC: B66F9/19
Filed: 1977-06-14
Abstract: Stop prevents the skip (1) from tipping, and is released on engagement by the truck forks. The stop (14) can be released by a tappet (15) actuated by the truck, and which is in the form of a bell-crank lever. The locking arm (16) of the latter is adjacent to the stop, while the actuating arm (17) protrudes beyond the skip frame (2). The lever pivots on an axis (18) out of line with the actuating arm and situated in the locking arm. The tappet can be spring-loaded (19) into the locking position.
Patent DE-2730268-A1 (DE)
Inventor: SPRAGUE BRINTON
IPC: F22B1/30
Filed: 1977-07-05
Abstract: The electrical steam generator contains at least one shell-shaped electrode (88) (which is arranged in a container and runs horizontally) and a distribution device (72) which is arranged above the said electrode and has openings (76) which feed the water to be vaporised to the electrode, in the form of vertical water jets, which electrode has a number of openings corresponding to the number of water jets, the distribution device (72, 76) being constructed to be capable of being moved away from the electrode from a position above the electrode, in the horizontal direction, in order to set a partial load on the steam generator, and a stationary catchment device (95) for water jets which do not strike the electrode being provided in the movement region of the distribution device but - seen in plan view - outside the electrode (88). As a result of this arrangement of the distribution device and the catchment device, the structural height of the steam generator can be reduced for a specified rated voltage. <IMAGE>