baber/WOPTO huggingface dataset:
Patent DE-2344842-A1 (DE)
Title: Decoupling device for amplifier outputs - has two inductances, magnetically coupled with each other, connected to two outputs
Inventor: DOUVERNE EGON
IPC: H03H7/48
Filed: 1973-09-06
Abstract: Winding start of the first inductance, and winding finish of the second are connected to the amplifier output, and winding finish of the first inductance, and winding start of the second are connected through suitable resistors to the two decoupled outputs; capacitors are connected to the decoupled outputs for balancing their impedances. The invention ensures that a satisfactory decoupling, even with the higher frequencies, is provided. The apparent impedances of the outputs are easily balanced. Different loads, including open circuit and short circuit, on the one output cause no change in the gauge of the other.
Patent DE-2345944-A1 (DE)
Title: Casting mould for site-assembly concrete parts - has pipe elements on common carrier with drive for loosening contents before removal
Inventor: GEBERT MANFRED
IPC: B28B7/16
Filed: 1973-09-12
Abstract: Casting mould for site-assembly production of concrete parts as in 2,251,016, has several and pref. all the pipes used during production of a building element attached to a common carrier outside the casting mould and pivotable about a tilt axis at 90 deg. to the pipes' long axes. The carrier has a driven to loosen the pipes before they are pulled out. Pref. an abutment face for the building element is fitted to the casting mould, and prevents the building element following the loosening movements of the pipes. The pipes can be withdrawn simultaneously.
Patent DE-2350339-A1 (DE)
Title: Wooden construction element for high-rise buildings - consists of two planks with castellated edges cut from one plank
Inventor: COCO SPENCER G
IPC: E04C3/18
Filed: 1973-10-06
Abstract: The cut castellated edges of the two planks engage with each other at their points of greatest depth. One of the planks carries a metal strip along an edge opposite to the castellated edge. The planks may be formed by a number of trapezoidal blocks, the narrow ends of which form the raised section, while their ends are connected to each other. A stay is connected to the plain edge of one plank, via an intermediate metal strip. A girder with an increased depth of web is obtained by this method, using the same amount of wood. The two planks which are joined together by the tips of their castellations are cut from the same plank.
Patent DE-2351822-A1 (DE)
Title: Exhaust system for four-stroke combustion engine - has venturi section between engine and silencer
Inventor: HEBERLEIN RUDOLF
IPC: F02B75/02
Filed: 1973-10-16
Abstract: In a four-stroke internal combustion engine exhaust the venturi may be arranged between the engine and the first silencer box or, alternatively, between the first and the main silencer box, e.g. when the venturi is adapted for a heavy lorry diesel engine. Various mounting arrangement are possible.
Patent DE-2352426-A1 (DE)
Title: Anti-agglomeration treatment of amorphous plastics granulate - by heating in fluidised bed with a metal soap
Inventor: NONNENMACHER FRIEDRICH
IPC: C08J3/12
Filed: 1973-10-19
Abstract: Amorphous plastics in granular form are continuously added to and removed from a fluidised bed in which they are treated with hot gas at 120-180 degrees C with a dwell time of less than 20 mins. and with addn. of a metal soap before or during the treatment. The process is especially used for the treatment of polar plastics esp. polyesters or co-polyesters and polyamides before further processing e.g. into continuous filaments, to give free-flowing, crystalline products. Combination of metal soap and fluid bed treatment allows the amount of the former to be reduced, together with the size of the fluid bed, time of treatment and amount of gas used.
Patent DE-2352917-A1 (DE)
Title: Sewage aeration basin - with circulating flow induced by pump and air injector through perforated pipe
Inventor: ASENDORF KNUT ERICH
IPC: C02F1/52
Filed: 1973-10-22
Abstract: In the parent patent sewage passes continuously from the overflow of an aeration basin to a final clarification basin, and the sludge is recycled to the aeration basin by water-jet injector for the introduction of the required air through nozzles at the bottom of the basin. In the present patent, the suction opening of a pump and the discharge opening of the pipe section downstream of the air injector are short-circuited by a circulating flow in the basin. The pipe section has a length of over a third of the basin periphery in the case of circular basins or of two-thirds of the length of rectangular basins. The pressure of the air introduced by the injector amounts at full load to over the static pressure of the fluid column above the lowest point of the injector. This system requires no moving or fixed baffles which may be damaged by ice formation or water level fluctuations. Its simple design and low material consumption enables it to be installed quickly, even in existing plant to raise the capacity.
Patent DE-2353642-A1 (DE)
Title: Binding agent for heat-hardenable moulding compsns - contg phenol-formaldehyde prods and amino acids
Inventor: LOHSCHELDER HEINRICH DIPL-CHEM
IPC: B22C1/22
Filed: 1973-10-26
Abstract: Binding agent based on phenol-formaldehyde condensation prods., optionally contg. resoles and modifying agents, and having a content of hardener, and also contg. amino-carboxylic acids or aminosulphonic acids. Pref. the binder contains 2-6 mol. phenol per mol. of aminocarboxylic acid or amino-sulphonic acid, and 0.5-1 mol, pref. 0.6-0.. mol, HCHO per mol. of the total of phenol and amino acid. Suitable amino acids are glycine, sarcosine, alanine, beta-alanine, glutamic acid, aspargic acid, leucine or proline; and also taurine, methyltaurine, sulphanilic acid or aminopropyl sulphonic acid. The binders are useful in heat hardenable moulding compsns,esp. in foundry moulding compsns or for coating granular, fire-resistant materials in soln. Pref. the molar ratio of phenol:HCHO:aminoacid ranges from 5-4 : 4-3 : 1. Condensation of the components takes place without catalyst, or with addn. of alkali cpds., pref. 1 mol. alkali per mol amino acid being used. The condensation takes place at raised temp. yielding a product similar to a Novolak, although it is not acid catalysed. The prod. can be isolated as solid prod. or be dissolved in water and alkali. Hardening of the binder can be effected with hexamethylene tetramine.
Patent DE-2357606-A1 (DE)
Title: Event detecting inertia element - is for events which can be converted into the acceleration of a mechanical pickup
Inventor: ENDEVELD CORNELIS DIPL ING
IPC: G01P15/125
Filed: 1973-11-19
Abstract: An inertia element of a specified shape and mass is allocated to the pickups, so that when the pickup acceleration exceeds a specified limit, the element changes, even if momentarily, its position with respect to the pickup. Means are provided for signalling this change. The pickups and the inertia element can rotate about parallel axes perpendicular to the pickup direction of movement, or both axes are combined in one. The inertia element is typically a loop sensitive to the passage of stubs or knots in a textile thread or running strand of paper, the sensing loop being attached to a spring loaded pendulum.
Patent DE-2364578-A1 (DE)
Title: Pattern case for sample demonstration - has case partly made of plastic material to hold pallets and has handles and pockets for extra literature
Inventor: WUCHNER WERNER
IPC: A47F7/16
Filed: 1973-12-24
Abstract: The pattern case is used for demonstration of material samples, wall-paper and similar, comprises two external covers, each with a plastic handle and with a series of pallets welded inside it. The pallets can be folded in a predetermined manner to an overall dimension which is equal to or is smaller than that of the covers. Whilst one cover holds the pallets on another cover, there are special transparent supports for holding removable literature such as price lists. The case has two rectangular handle slots along the top edge.
Patent DE-2401872-A1 (DE)
Title: Sewage treatment tanks with movable partitions - allowing changes in the volume and area of the tanks without interrupting the process
Inventor: EGENBERGER OTTO
IPC: C02F3/12
Filed: 1974-01-16
Abstract: In one tank at least of an installation of rigid walled tanks or ponds with feed water inlets and clarified water outlets, for the treatment of sewage, movable partitions are fitted. The partitions are in sheet form of a material proof against sewage, that can be folded or rolled up. Tensioning wires are fitted to them, and they are supported by single or double posts inserted in floor sockets from which they can be withdrawn and repositioned in others, the tank being divided thus into two or more chambers. The ends of the partitioning sheets are wound in rolls leaving material available for altering the length of the dividing walls, and openings in the walls connecting the chambers can be closed as required by press studs, sliding fasteners, etc. Permits the layout of a purification plant with at least two chambers in which a single chamber can be enlarged whilst operation of the plant continues, and redirection of the flow is avoided.
Patent DE-2402517-A1 (DE)
Title: Thermal treatment of impure salt solns. - using a recycle of salt from a fluid bed to the gas space with additional milling
Inventor: WEYER HORST DIPL ING
IPC: F23G5/30
Filed: 1974-01-19
Abstract: Process for treating impure salt solutions consists of a fluidised bed of the salt into which fuel and the salt soln. are injected, the bed being fluidised with air. Incomplete combustion occurs within the bed and residual combustion occurs above the bed. Salt is drawn off the bed, ground finner than 150 mu in mill, and then blown back into the gas space of the bed where the residual after burning of the fuel is occuring. The bed temp is below the fusion temp. of the salt. The after burning space is held at >=800 degrees C. By reducing particle size and then reintroducing the salt, residual soot is burnt off in the afterburning zone giving a pure product.
Patent DE-2411436-A1 (DE)
Title: Piston rod connected pivotally to piston - by resilient ring engaged between rod and recess in piston
Inventor: INGENLATH NORBERT DIPL ING
IPC: F16D65/28
Filed: 1974-03-09
Abstract: The rod is provided at the end adjacent the piston with a cylindrical portion having a part spherical end face adapted to abut the bottom end of a recess in the piston for the transmission of piston thrust while allowing a limited pivoting of the rod away from the piston axis. The ring is engaged at its inner periphery in a groove in the cylindrical end portion and at its outer periphery in a groove in the recess. For assembly of the ring the outer end of the recess has a conical lead. The ring allows easy assembly and disassembly.
Patent DE-2413871-A1 (DE)
Title: Combined roller-mounted floor cleaning appts. - includes detachable accessories for sweeping, washing and polishing floor in one stroke
Inventor: DIEBOLD AUGUST
IPC: A47L11/30
Filed: 1974-03-22
Abstract: The combined floor cleaning apparatus comprises a roller-mounted support frame which is provided with the different cleaning accessories, such as brush, sponge and cloth so that in one work stroke the floor is swept, washed and dried. A liquid container for the cleaning fluid is provided on the frame with a distributor tube leading to the floor and the individual accessories are fitted on by hinge fasteners or the like so that they can be removed for periodic cleaning. The apparatus is of simple construction with the minimum of component parts.
Patent DE-2420466-A1 (DE)
Title: Fumaric and dinitrile isomerisation - to maleic acid dinitrile using polyfumaric- and or polymaleic dinitrile catalyst opt. prepd. in situ
Inventor: HELLING GUENTER
Filed: 1974-04-24
Abstract: Maleic acid dinitrile (III) is prepd. by (i) contact isomerisation of fumaric acid dinitrile (I) with a polynitrile (II) having a formula (FN)nMm and/or (MN)nMm (where FN and MN are monomer units of (I) and (III) respectively; M is a metal or metal cation, pref. Li, Na, K, Mg, Ca, zn, Cd or al; n is integer 1 to 100 and m is integer 0 to 10), as catalyst, at -40 to 210 (-10 to 100) degrees C, and in mol. ratio (I):(II)>1:1 and (2) recovery of (III). (II) may be a copolymer of (I) and (III) and is pref. prepd., opt. in situ, by reacting (I) and/or (III) with M, MRx, M(OR)x, M(NRR')x or MM'(NR)x (where R and R' are alkyl or aryl and M and M' are metal or metal cation), at -40 to 210 degrees C. Organometallic cpds. used are advantageously at least partially soluble in system and have no oxidising tendencies.
Patent DE-2423246-A1 (DE)
Title: Network continuously multiplying two frequencies - produces pulse train proportional to product using one of two alternating logic networks
Inventor: MIROW HANS DIPL ING
IPC: G06F7/68
Filed: 1974-05-14
Abstract: In the first network, one input pulse train is gated with an auxiliary higher frequency signal, and the output used to increment a counter, the contents of which are then periodically proportional to both input frequencies. The contents of this counter are transferred via a storage register to another reverse counter in a programmed manner and the final counter counted down to zero by the second input signal. The various registers are cleared at the appropriate times and a pulse is output when the final register reaches zero. The output frequency is proportional to the product of the two input frequencies.
Patent DE-2427843-A1 (DE)
Title: Controlled diffusion of one fluid into another - through a permeable membrane whose temp. is controlled
Inventor: LUCERO DANIEL P
IPC: G01N1/38
Filed: 1974-06-07
Abstract: An appts. for precisely controlling the diffusion of a first fluid into a second fluid, in which the second fluid flows through a narrow annular passage between a cylindrical housing and a concentric hollow core, before flowing in the opposite direction through the core over a permeable wall enclosing the first fluid, has a means for controlling the temp. of the second fluid in the annular flow passage. The temp. control system includes a device which transfers heat to the outer surface of the housing, and the whole is enclosed in an insulating layer. Appts. is used esp. for producing dilute mixts., e.g. of SO2 in air for calibration of analytical equipment.
Patent DE-2430267-A1 (DE)
Title: Granulated trace element mixt. for animal feed - giving improved taste and avoiding dust and lump formation and segregation
Inventor: LAGERSTROEM GOESTA BERTIL
IPC: A23K1/00
Filed: 1974-06-24
Abstract: The elements, Fe, Cu, Co, Mn, Zn, I, Se, Mo and B in the form of their cpds. e.g. iodides, iodates, sulphates molybdates, borates, oxides, selenates and carbonates are added as powders and granulated in the presence of phosphoric acid and >=1 of Ca-, Mg- and Zn- oxides, Ca-, Mg-, Zn-, Cu-, Mn- and Fe- carbonates, Ca- and Mg-hydroxides and Ca phosphate. If water is used, the size of the granulated prod. can be controlled by the intensity of the mixing in the final reaction phase. Dust-formation during processing, lump-formation during storage and segregation are avoided, the taste of the feeds is improved and the process is cleaner. Better homogeneity of the distribution of the trace elements in the final feed is obtd. and analytical control is easier. A prior addn. of Co, I and Se is no longer necessary.
Patent DE-2430911-A1 (DE)
Title: Lock for sliding frames of windows - has sliding lock assembly with actuating cam and cylinder lock
Inventor: ISENBERG HEINZ
IPC: E05B65/08
Filed: 1974-06-27
Abstract: The locking arrangement is used for sliding frames of windows or doors. This locking arrangement can be actuated also from outside yet it offers protection against breaking in and compact handles as well as rotating handles can be used. The sliding locking element (1) consists of a sheet metal strip which has a bent section (2) situated above the guide element (3). This slider is connected with an actuating cam (7) below its bent holding lip (6). The guiding element (3) has a projecting member (8) which is at right angles to the plane of movement. This projecting element (8) accommodates a cylinder lock. This locking slider (1) is actuated by means of the latch (13) of a bolt lifting mechanism (14) which is guided by a covering strip (16). This covering strip is connected with a handle (15).
Patent DE-2445493-A1 (DE)
Title: Solenoid pilot valve with three way function - has steel ball operated by magnetic force as valve shuttle
Inventor: WALLOSCHKE RUDOLF
IPC: F16K31/06
Filed: 1974-09-24
Abstract: A solenoid pilot valve has a coil (1) which is housed in a cylindrical cage (2). A core (3) with a central hole (4) forms a ferro-magnetic pole frame together with the cage (2). At the position where the core does not reach the axial end face of cage (2), a steel ball (5) is located between the hollow core (7) and the valve seat (8) of an outlet port (6). With the coil energized, the ball is drawn into the coil thus closing the hole in the core. When de-energised the ball closes valve seat (8), it is thus possible to obtain a three way valve configuration,.
Patent DE-2449509-A1 (DE)
Title: Aq. urease soln used as liquid developer - for exposed two-component diazotype material contg. urea or urea deriv
Inventor: MATSUDA TSUTOMU
IPC: G03C5/18
Filed: 1974-10-17
Abstract: Developing exposed photo-sensitive 2-component diazotype materials contg. urea or a urea deriv. takes place by applying a liquid developer consisting of an aq. soln. of urease, used in sufficient concn., pref. 1-20 wt. % to decompose the urea or urea deriv., followed by drying under heating. Diaxo-copy obtd. is dry, free from solid alkali, resists bleaching, requires no neutralising, is free from smells, does not foul interior of apparatus.
Patent DE-2450077-A1 (DE)
Title: Ic engine with multi-stage air intake compressor - and regenerative heat exchanger heated by engine exhaust gases
Inventor: WIESER RUDOLF DR
IPC: F02B29/04
Filed: 1974-10-22
Abstract: The combustion air is fed to the engine via a multistage compressor (1) with in between cooling stages (3a-3c) and driven by the engine crankshaft gear (12). The final compressor output is fed to a regenerator pre heater (5) where the compressed air is heated by the engine exhaust gases before being introduced into the working cylinder via the inlet valve (7) which is open for a certain number of crankshaft degrees as the piston moves from top dead centre towards the crank case. Fuel is injected after the inlet valve has closed and becomes ignited by the hot compressed air, the resulting expanding gases force the piston to the end of its stroke at which point the exhaust valve (8) opens and the piston returns to repeat the cycle.
Patent DE-2458264-A1 (DE)
Title: Hydraulically raised or lowered driving cab - has differential piston to compensate for lorry cab suspension movements
Inventor: PERUNOVIC LJUBOMIR
IPC: B62D33/07
Filed: 1974-12-10
Abstract: The inwards and outwards movement of the lifting piston caused by the suspension movements of the driving cab is compensated by the inclusion of a differential piston in the form of a non-return valve which allows oil from the lowered side to be sucked via a suction valve to the lift side when the piston moves outwards and via the differential piston to be sucked back by the pump when the piston moves inwards. The piston unit is placed between the chassis and the hinged arm moving with and lifting the cab when required.
Patent DE-2505365-A1 (DE)
Title: Automatically operated electric hot air hand dryer - uses Doppler effect and sound waves to provide proximity switch operation
Inventor: BACHEM CHRISTIAN DR
IPC: A47K10/48
Filed: 1975-02-08
Abstract: The electric hot air hand dryer is provided with a proximity switch, in which the Doppler effect is used on moving sound reflectors so that the dryer is automatically switched on and off as the hands are placed up to the hot air outlet. An adjustable mechanism e.g. sound-conductive rod, is provided, by which sonic energy drawn directly from a sound transmitter or a sonic frequency voltage is supplied direct to the shound path. The optimum ratio between the energy, outer sound path. The optimum ratio between the energy, reflected by the hands and altered in frequency by the Doppler effect, and the energy arriving at the receiver from the sound transmitter with unchanged frequency is preferably such that the unchanged value is greater than the reflected value and smaller than the value for controlling the receiver.
Patent DE-2505787-A1 (DE)
Title: Motor vehicle door holder with spring - has waveform leaf spring holding door stay roller in position
Inventor: WOLPERT ERICH
IPC: E05C17/28
Filed: 1975-02-12
Abstract: The door position holder can be used on cars or furniture doors. One end of the holder stay is fastened by a pivot on the door and the other end has a roller loaded by the holder mechanism. The door holder roller (3) rolls on a flat guide (15) and the roller is pushed against the guide by a waveform shaped flat spring (2). This spring has ends which are turned back and held on clamps in the door support. The waveform of the spring ensures that the roller is held in given positions by the spring depressions. Travel from one depression to another is achieved by overcoming the resistance exerted by spring wave crests on roller.
Patent DE-2507696-A1 (DE)
Title: Parallel conductor clamps for overhead trolley cables - has adjustable bearer to permit camber on curved stretches
Inventor: GERICHTEN FRANZ ING GRAD
IPC: B60M1/24
Filed: 1975-02-22
Abstract: The parallel conductor clamps (3) are secured by a single bolt (2) passing through the clamps and a cylindrical bearer (1) hooked to the over head suspension (5). The cylindrical bearer bolt hole is made by two bores (12, 13) of the same diameter meeting each other at an acute angle which allows the bolt (2) to be tilted at a desired angle before being tightened up so the parallel conductor cables (4) form a camber on curved stretches to give even wear. A power feed line (6) may be clamped between one clamp bracket and the fixing bolt head (2).
Patent DE-2510247-A1 (DE)
Title: Continuous etching of copper-plated circuit boards - with automatic addn of hydrogen peroxide and hydrochloric acid to regenerate bath
Inventor: BUNGARD HEINZ
IPC: H05K3/06
Filed: 1975-03-08
Abstract: In etching Cu-plated circuit boards, pref. by the continuous process in which the boards are contacted, pref. sprayed, with an etching soln., a time interval is provided, coming from the area of each type of board to be etched, after which a certain amt. of H2O2 and HCl in given ratio is added to the bath automatically to regenerate the etching soln. Addn. can also be dependent on the density of the soln. High speed continuous etching is possible.
Patent DE-2510886-A1 (DE)
Title: Connection for plastic pipes - has inserted sleeve and outer clamping ring with matching tapered ends
Inventor: MATTES ROLF
IPC: F16L47/04
Filed: 1975-03-13
Abstract: The pipe connection consists of a sleeve (2) which is inserted in the end of the pipe to be connected. The outside diameter of the sleeve is largest in the centre and tapers slightly toward each end. An outer clamping ring (4) is placed over the pipe to be connected. This ring has internal tapers which match the tapers of the sleeve inserted in the pipe. The pipe end with ring and sleeve is now mounted in the end of a screw connector (7) with a tapered bore. A sleeve nut (11) is used to force the outer ring into the connector, so that the pipe becomes trapped between ring and inner sleeve.