baber/WOPTO huggingface dataset:
Patent DE-2502703-A1 (DE)
Title: Single-phase unbalanced rectifier bridge for supplying traction motors - has three pairs of thyristors in two-diode bridge with capacitor
Inventor: DOPPLER SIEGFRIED DIPL ING
IPC: H02M1/06
Filed: 1975-01-23
Abstract: The single-phase unbalanced rectifier bridge, for supplying traction motors, has two main thyristors and two turn-off thyristors and two rectifying diodes. The single commutating capacitor is connected in series with an inductor between the two junctions between the two thyristors in the main and turn-off pairs of thyristors. Two charging thyristors are coupled antiparallel between the junction between the two diodes and the junction between the two turn-off thyristors. The two charging thyristors are turned on alternately shortly after the capacitor charge current has decayed so that the transformer is loaded as if the two thyristors were coupled directly to the transformer.
Patent DE-2509973-A1 (DE)
Title: Bed frame with lower storage box - has three part mattress with reliable lift mechanism for raising end
Inventor: SICHELSCHMIDT GERHARD
IPC: A47C20/04
Filed: 1975-03-07
Abstract: The bed frame (1) is designed for a three-part mattress (2) which fits over a storage box and can be raised up at the top and bottom access. Each of the adjustment devices (11) associated with the foot of the mattress (5) consists of an elbow lever (12) attached to the bed frame (1) at one end and to the foot of the mattress (2) at the other and which can be bent down in the direction of the foot of the bed frame (1). This lever (12) is stretched by a tensile spring (17) fastened at one end to the foot 5 of the mattress and at the other engages on the articulated rod (15) of the elbow lever attached to the foot (5). A pawl (20) is attached to the frame above the point of articulation of the articulated rod (16) attached to the frame (1).
Patent DE-2512516-A1 (DE)
Title: Perylene tetracarboxylic acid di, tri or tetra esters - useful as dyes esp. for polyesters and pigments for thermoplastics
Inventor: EILINGSFELD HEINZ DIPL CHEM DR
IPC: C09B3/18
Filed: 1975-03-21
Abstract: Perylene esters of formula (I) are new: (where 0, 1 or 2 R's are H and the others are same or different 1-10C alkyl (opt. Cl or OH substd.), 3-8C alkoxyalkyl, cyanoethyl, 4-8C beta-(carbalkoxy)-ethyl, 4-8C dialkylaminoalkyl, 7-10C phenalkyl or phenyl opt. substd. by 1 or 2 1-4C alkyl, CH3O, C2H5O, Cl and/or Br; X = Cl or Br; n = 0-8). They are prepd. from tetracarboxylic dianhydride by reaction with >=2 moles ROH alkali metal salt, then opt. further alkylation of the half-ester formed. (I) are used for deying (semi)synthetic matls. such as polyamides, cellulose ester, polyacrylonitrile and esp. linear polyesters, and for mass pigmentation of thermoplastics such as polystyrene. They give yellow-to-red shades of high light fastness.
Patent DE-2513069-A1 (DE)
Title: Condensate degasifier - for boiler feed water preheating in power station practice with feedwater supply above and below water level (NL280976)
Inventor: SCHOPF ARMIN
IPC: F22D1/32
Filed: 1975-03-25
Abstract: For the degassing of boiler feed water in power production processes by supplying condensate to a feed water reservoir and heating the water therein by steam introduced below the water level, a part of the condensate is supplied below the water surface and is brought to the boiling point before it leaves the feed water reservoir by the steam introduced therein. The fraction of the condensate feed supplied below the surface of the water preferably increases with rising throughput. Enables a more intensive degassing to be obtained with a considerable reduction of the volume of water in the feed water reservoir and hence a reduction in the size of the latter. In addition the water surface remains calmer and thus does not interfere with the spraying-in of the feed water.
Patent DE-2518841-A1 (DE)
Title: Synchronised data transfer for railway systems - uses monitored time information in two-way transmission between installations
Inventor: UEBEL HELMUT DIPL ING
IPC: B61L7/08
Filed: 1975-04-28
Abstract: A system for synchronised data exchange between a central control computer and a local switching unit in a railway system uses a synchronised data transmitter/receiver in the switching unit. Command words are relayed from the controller to the switching unit which also transfers answering data from the railway elements, e.g. points and crossings, back to the central processor. In the switching unit receiver a synchronisation pulse is derived from the synchronisation bits of the received instruction words. The pulse is transferred to the switching unit transmitter (PS) and controls the sending of the return data words. Successive data words are distinguished using two address counters in the transmitter, the agreement of their contents being monitored in the central processor. If timing criteria are not satisfied, safety precautions may be automatically activated.
Patent DE-2519683-A1 (DE)
Title: Table whose top is stack of board-game boards - has storage space for extra, collapsible table-base under central storage well
Inventor: RAETZER HORST
IPC: A47B13/08
Filed: 1975-04-30
Abstract: The board for one game is permanently joined to the table base (1, 1); which has a well in the middle intended for chessmen etc. Above this permanent table is a stack of two-sided board game boards (2, 3). The uppermost of these boards carries a vertical flange round its edge; this serves to hold the whole stack together, and in position on the fixed table. The loose boards can be used in conjunction with the fixed table, and also in conjunction with collapsible bases which allow two or more of the boards to be used simultaneously. The collapsible bases are stored on a shelf under the fixed table.
Patent DE-2525252-A1 (DE)
Title: Remote controlled toy boat drive - has horizontally extended plate mounted below waterline of hull to form deflector
IPC: A63H23/04
Filed: 1975-06-06
Abstract: The drive system is for a toy boat of the remote controlled operational type. A propeller is mounted below the waterline of the hull of the boat. The propeller is mounted onto a drive or shaft which is powered by a drive motor with its direction of rotation remotely reversible. A deflector type shield device is mounted in a position sideways to the propeller. A plate (37) is attached below the waterline of the boat in an horizontally extended direction. This reduces turbulance and directional disturbances caused by rapid propeller rotation.
Patent DE-2525508-A1 (DE)
Inventor: MERGER FRANZ DIPL CHEM DR
IPC: C07F9/40
Filed: 1975-06-07
Abstract: Aliphatic diesters of diaminoalkylphosphonic acids of the formula I are prepared by hydrogenating aliphatic diesters of corresponding dicyanoalkylphosphonic acids with hydrogen in the presence of ammonia for 0.1 to 50 minutes. The catalyst used is nickel and/or cobalt. The resulting diesters are suitable as flame retardants and fungicides. <IMAGE>
Patent DE-2526150-A1 (DE)
Title: Fastening device for fixing coil windings - attaches windings to former and attaches former onto circuit board
Inventor: STEUP WALTER
IPC: H01F27/30
Filed: 1975-06-12
Abstract: The spool attachment parts are mounted on the circuit board and dip soldered, so that coil terminals are soldered to corresponding conducting traces on the board underside. Coil support is held on the board by snap-action holding devices passing through holes in the board. The windings are held on the former by a coail holding element made in one piece with the coil former or support and connected with it by a thin hinge-like connection. The holding element has a middle part and two projections enclosing the winding in its working position.
Patent DE-2526798-A1 (DE)
Title: Sub nand second universal logic element - has dual emitter and normal transistor back to back and four emitter followers
Inventor: MEYER FRITZ DR ING
IPC: H03K19/086
Filed: 1975-06-16
Abstract: The subnanosecond universal logic element, for AND, OR and NOR operations, has the base of a dual-emitter transistor (T) connected to the base of a second transistor (T2). The emitters of first transistor are connected to the emitters of third and fourth transistors (T3, T4). The emitter of the second transistor is connected to both the emitters of fifth and sixth transistors (T5, T6). The bases of the third to sixth transistors (emitter followers) form the inputs, whilst the collectors of the first and second transistors are the outputs. The collectors of the four emitting follower transistors are earthed directly, and the emitters of the first two transistors are connected resistors to the negative supply.
Patent DE-2529546-A1 (DE)
Title: Wearable identification card or permit holder - has clear plastic holder mounted on clip with locating studs
IPC: G09F3/18
Filed: 1975-07-02
Abstract: A retaining clip and clear plastic holder is suitable for providing a secure mounting for any identification card worn by personnel ina company. The clip (4) has two projecting leaves with locating studs (7). A further projection (6) is located on the front edge of the clip between the two rear leaves. The preformed 'U'-shaped clear plastic holder (8) has noles that locate on the clip studs (7) to provide a secure location. The front centre projection (6) provides further retention. Any identification card is readily inserted at the rear of the carrier and is clearly seen.
Patent DE-2529868-A1 (DE)
Title: Anhydrite for support dams in mining - where dosed amt. of excitation agent is mixed with the anhydrite in pneumatic conveying machine
Inventor: KNAUF KARL
IPC: E21F15/10
Filed: 1975-07-04
Abstract: Device for blowing granular or powdery anhydrite (CaSO4) and 2-5 wt. % sulphate excitation agent into a compressed air duct leading to a cavity to be filled with the mixt. The blowing machine has a feeder funnel followed by a rotating star feeder wheel supplying the duct. The novelty is that the drive shaft for wheel projects out of the machine, and is fitted with a cam disc operating a valve on a hydraulic or pneumatic cylinder with a piston rod driving a screw feeder delivering agent from a hopper into the funnel in a dosed amt. due to the control exerted by the cam disc. The device is used in underground mining for making longwall face supports and dams, roof pillars and props etc., the use of CaSO4 blown to the pit face or other zone being faster and less costly than other methods. The invention mixes the dry agent with the CaSO4 so it is only necessary to add water.
Patent DE-2532514-A1 (DE)
Title: Motor for high speed winding of synthetic threads from spinneret - has starting moment four times the synchronous moment
Inventor: BURGBACHER MARTIN
IPC: H02K19/08
Filed: 1975-07-21
Abstract: Electric motor is arranged so that its outer mantle rotates and acts as a friction roller for the goods being wound. The external rotor is a tubular hysteresis rotor of steel with a high degree of electrical conductivity. The steel has a specific resistance of ca. 0.1 OMEGA mm2/8 and is hardened to the extent that there is a remanence field strength of 9 to 10 KG. The motor, unlike cage wound motors requires only a small starting current for a high degree of starting toque, and it adjusts itself to a consistent turning moment under heavy acceleration loading at the synchronous speed.
Patent DE-2534669-A1 (DE)
Title: Contact breaker for circuit IC engine - has magnetic armature with double number of pole zones as cylinders
Inventor: BRUNGSBERG HEINRICH-JOSEF
IPC: F02P7/067
Filed: 1975-08-02
Abstract: The contact breaker is for an internal combustion engine with an odd number of cylinders. It consists of a contact breaker plate with a number of contacts and a distributor shaft driven by a motor, where the ignition energy stored in an ignition coil is used to transform an ignition voltage in the secondary of the coil when the primary current circuit is broken. The contacts are encapsulated in a gas-tight chamber and the distributor shaft is driven by a magnetic system. The magnetic armature (10, 12, 13, 14, 17, 18) has twice the number of pole zones as the number of motor cylinders. The protective shield contacts (5, 6) are fitted with a permanent magnet (15) which produces a field weakening the field of the rotating magntic armature. This produces only half the number of switching points that would normally be produced for the available number of pole zones.
Patent DE-2536252-A1 (DE)
Title: Microbiocidal aryl ketones of improved stability - esp. for use in washing or cooling systems and paper prodn.
Inventor: OECKL SIEGFRIED DIPL CHEM DR
IPC: C07C331/04
Filed: 1975-08-14
Abstract: Aryl ketones of formula R1-CO-CR2R4-CR3R5-R6 (I) (where R1 = (opt.) substd. aryl; R2 and R3 either form a bond or are halogen when R4 and R5 = H; R4 and R5 either are H or halogen and H when R2 and R3 form a bond and R6 = SCN or halogen) have strong microbicidal activity. Aryl ketones of formula R1-CO-CHX-CHX-R6 (II) (where X = halogen) are new. (I), which include (II), are used to prevent microbial infection of aqs. systems, pref. in washing/cooling water circuits, paper pulp, feeders, synthetic fibre spinning baths, electrophoretic baths ext. as well as to protect (semi-) finished prods., e.g. polymer dispersions, paper coating compositions, leathers etc. (I) are more stable than known homologues as well as being less aggressive to skin and more effective.
Patent DE-2536690-A1 (DE)
Title: Removing faulty electroless nickel coatings from nonferrous metals - using electrolyte which does not attack substrate
Inventor: BEHRINGER GEORG
IPC: C25F5/00
Filed: 1975-08-18
Abstract: The aq. bath contains sulphuric acid and citric acid, pref. together with phosphoric acid, to give a density of 1.532-1.714 (1.637) g/cm2 at 20 degrees C. The bath is pref. employed at 20-60 degrees C using a current density of 10-30 (20)A/dm2. Used on Cu or Cu alloy substrates, e.g. brass, with complex shape, where mechanical removal of the coating of Ni, contg. 3-12 wt.% P, is difficult. As soon as the substrate is exposed a passive layer is obtd. on the surface of the substrate; and when all the Ni-P is dissolved the current is reduced virtually to zero.
Patent DE-2539740-A1 (DE)
Title: Spacecraft nutation prevention system - uses damped pendulum rotating about axis parallel to spin axis
Inventor: SCHULTZ PETER DR ING
IPC: B64G1/34
Filed: 1975-09-06
Abstract: A rotating body in a vacuum, such as an orbiting space craft, is liable to experience unstable conditions due to nutation movement. These nutation vibrations are counteracted by a damped pendulum which has its pivot point (8) at a distance (L.) from the axis of rotation (1) of the body (2). The centre of gravity of the pendulum (7) is thus placed between the two parallel axis (1, 8). By selecting the length of the pendulum, its arm stiffness and the distance between the two axis of rotation, a pendulum frequency can be obtained that lies within the range of the nutation frequency. Thus the nutation vibrations can be damped.
Patent DE-2549301-A1 (DE)
Title: Processing green raw materials - by comminuting or mixing with addn. of binder for pore and capillary water released
Inventor: RITZMANN HORST DIPL CHEM DR
IPC: B02C23/06
Filed: 1975-11-04
Abstract: Highly green raw materials, which stick or smear when broken up, are worked up by comminuting and mixing, while green, with addn. of an at least partial binder for released pore- and capillary water of the raw material. Process is esp. suitable for working up chalk and plastic clay, as main mixing components of cement raw materials. Process takes place with low plant investment and without filter presses, and with high heat economy. In a pref. example, cement raw material was worked up from 79.3% chalk contg. 18% moisture, grain-size 300 mm, 14% plastic clay contg. 19.8% moisture, grain-size 300 mm and 5.8% flue dust, contg. 10% moisture, grain-size 0.15 mm.
Patent DE-2559732-A1 (DE)
Title: Reverse flow purged gap filter - esp. for samples for process control analysers, has helically coiled filter element
Inventor: BECKER WOLF-JUERGEN DR
IPC: B01D29/11
Filed: 1975-10-11
Abstract: The gaps between the individual turns of the coil act as a sieve for the liq. The gap width, and hence the coil pitch, can be adjusted from outside the filter by compressing or stretching the coil. No pre-filter is required and then cleaning procedure is quick and simple. The filtration efficiency can be varied without dismantling the filter.
Patent DE-2602432-A1 (DE)
Title: Towed sleeve target has radar-reflecting threads - spaced to suit radar wavelength in easily woven textile cloth
Inventor: GLISMANN HANS-PETER
IPC: H01Q15/14
Filed: 1976-01-23
Abstract: A towed sleeve target is equipped with radar-reflecting constituents and comprises a front towing ring and a tube with long metal components in its wall. These metal components are spaced at distances apart less than or equal to one quarter of the wavelength of the radar frequency employed. The cloth may be of textile with metal filaments twisted with some of the textile threads. Alternatively, metal filaments are wrapped helically around textile threads. The metal filaments may be in either the warp or the weft direction. Specifically the textile filaments are of acrylonitrile or other synthetic fibres and all the filaments are of the same type, including those around which the metal filaments are twisted. The metal filaments are pref. of rectangular cross-section and may be of aluminium, with a polyester coating. By considerably reducing the number of metal filaments, the manufacture of the towed sleeve is considerably simplified.
Patent DE-2603007-A1 (DE)
Title: Ski safety harness with front catch with ramp - allowing sole plate to ride up during frontal collision to translate forward motion to vertical for release of boot
Inventor: BIERMANN PETER DR ING
IPC: A63C9/085
Filed: 1976-01-27
Abstract: This ski safety harness has a front fastener (13) fixed to the ski (12). In the fastener (13) is a sliding, spring loaded, piston (19). The shoe is held in a sole-plate (11). This plate (11) has a catch depression (16) in its front end so that when the sole plate (11) is in place on the ski (12) the sliding piston (19) sits in the catch depression (16) to hold it in place. The lower part (21) of the depression (16) is angled so that when the plate (11) rises with greater than a given force the sliding piston (19) is pushed forwards to release the plate (11) from the harness. The fastener (13) has, in front of the sole plate (11) a ramp (14), so that, in the event of a collision, the sole plate (11) will ride up the ramp turning the forward motion of the plate (11) into vertical motion to push the piston (19) forwards thus releasing the sole plate.
Patent DE-2608818-A1 (DE)
Title: Fan belt tensioner for motor vehicle engine - has tension wheel on pivoting arm on plate bracketed to engine
Inventor: WAGNER EDUARD DIPL ING
IPC: F16H7/02
Filed: 1976-03-04
Abstract: Tensioner is for vehicles whose fan belt bends between two perpendicular planes. The wheel (13) is on the end of an arm (31) which pivots on a pin (33). The pin is attached to a plate (35) which has lugs (37, 39) by which it is fixed to the brackets on the cylinder block. The wheel carries a bar (49) which has a downturn flange acted on by a spring (47) whose other end abuts on a fixed flanged bracket (45) below the support plate (35). A stud (51) turning in a block (41) on the support plate (35) moves the pivoting arm (31) and with it the wheel (13) against the tensioning spring (47). The pivoting arrangement makes replacement and tensioning of the fan belt simple and fine adjustment easier.
Patent DE-2613523-A1 (DE)
Title: Fixing and release of photographs in album - using adhesive force of soft PVC film
IPC: B42F5/00
Filed: 1976-03-30
Abstract: Process for fixing and releasing photographs in an album is carried out by using the adhesive force of a smooth, soft PVC film with suitable softener content. Pref. either an adhesive film or a smooth counter film is applied to the supporting page of the album on the one hand, and to the reverse side of the photograph on the other hand, the two films being of any shape and size, and being held together without slipping by applying pressure. The supporting page may be replaced by an adhesive film or smooth counter film, of which the latter is made of any smooth material including paper. The photographs can thus be secured and detached any number of times.
Patent DE-2615182-A1 (DE)
Title: Annular sewage aeration tank - with specified sectional restriction for aeration impeller assisting horizontal circulating flow
Inventor: BAUM FRANZ-JOSEF DIPL ING
IPC: C02F3/16
Filed: 1976-04-08
Abstract: Aeration tank in biological sewage treatment plants has an annular shape in which a horizontal circulation is achieved by horizontally rotating aeration impellers. At the spot where the impeller is installed, the free cross-section is waisted between half the impeller dia. and the free cross-section minus half the impeller dia. This results in an optimal mixing of the tank contents. The flow velocity at the sole is raised enough to prevent any deposits. The reaction space of the biological classification stage is fully utilised and operational stoppages are eliminated.
Patent DE-2618188-A1 (DE)
Title: Trifocal mirror reflector system - provides single common complementary focus and two other foci for use with lamp having multiple light sources
Inventor: LUEDERITZ WILLY DIPL ING
IPC: F21V7/08
Filed: 1976-04-26
Abstract: The trifocal mirror reflector uses mirrors with elliptical cross sections and provides a common complementary focus (f1) which acts as the centre of rotation of the rays from focal lines (f1-f2 and f1-f3 and f2-f3), in either horizontal or vertical planes. The reflector is used in lamps which have light sources placed at one or several foci. The reflector system provides a common complementary focus (f1) which is the centre of rotation of the focal line (f2-f3) about the axis (f1) perpendicular to the line (f2-f3), or the centre of rotation of focal lines (f1-f2) and (f1-f3) about the axis (f1) perpendicular the line (f2-f3), (f1-f2) being equal in distance to (f1-f3). In this case, an annular light source e.g. a fluorescent tube, may be placed along the annular focal line (f2-f3) giving a narrow circular aperture about the focus (f1).
Patent DE-2618812-A1 (DE)
Title: Heptadienate and acrylate ester codimerisation - catalysed by alkali metals, their alcoholates, hydrides, amides or tritylates
Inventor: BURBA CHRISTIAN DIPL CHEM DR
IPC: C07C67/00
Filed: 1976-04-29
Abstract: Dimerisation of heptadienic acid esters, (I), prepd. from 1,3-diolefins and acrylic acid esters, in parent patent, uses basic dimerisation catalysts, namely Gp. IA metals or their alcoholates, hydrides, amides or tritylates, at -20 to 120 degrees C, or Gp. IIA metal alcoholates, hydrides or amides, at 20-180 degrees C. In the addition, codimerisation of (I) with acrylic acid esters, using basic catalysts, namely Gp. IA metals, their alcoholates, hydrides, amides or tritylates, at -20 to 120 degrees C. Unsaturated dicarboxylic acid esters prepd. are used as synthesis intermediates. They can be hydrogenated to the saturated prods. or saponified to the carboxylic acid salts. Prod. contains a predominating co-dimer quantity.