Patents Assigned to Aktiengesellschaft
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Patent number: 3971420Abstract: A dosing device for the automatic introduction of ingredients into a vessel of an industrial cooking apparatus has a mobile stand having a space for accommodating the stationary vessel of the cooking apparatus; a cantilever member secured to the stand above the space; a plurality of ingredient containers pivotally secured to the cantilever member and a spray tube mounted in at least one of the containers. Each container has a first position in which its contents are maintained therein and a second, or inwardly and downwardly tilted position in which the contents are discharged from the container by gravity.Type: GrantFiled: December 10, 1974Date of Patent: July 27, 1976Assignee: F. Kuppersbusch & Sohne AktiengesellschaftInventors: Alfred Lohr, Wolfgang Schwan, Wolfgang Tschek, Gunter Schreiber
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Patent number: 3971833Abstract: A process for the preparation of an alcohol-free alkali or alkaline earth metal alcoholates dissolved in inert solvent which comprises contacting at least an equimolar amount of an alkali or alkaline earth metal dissolved in an inert solvent with an alcohol at an elevated pressure and at a temperature of at least that at which crystal alcohol splits off from the corresponding alkali or alkaline earth metal alcoholate and below the temperature at which said alcoholate decomposes under the prevailing pressures.Type: GrantFiled: June 25, 1974Date of Patent: July 27, 1976Assignee: Dynamit Nobel AktiengesellschaftInventors: Arnold Lenz, Walter Rogler
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Patent number: 3971690Abstract: A process is described for bonding or coating materials which comprises applying a molten olefin copolymer to a substrate. The copolymer is a terpolymer comprising about 70-90 parts by weight of ethylene, about 0.5-10 parts by weight of an ethylenically unsaturated carboxylic acid amide, and about 0.5 to 20 parts by weight of an ethylenically unsaturated carboxylic acid ester. The sum of the above parts by weight is equal to about 100.Type: GrantFiled: July 10, 1974Date of Patent: July 27, 1976Assignee: Ruhrchemie AktiengesellschaftInventors: Hans-Walter Birnkraut, Werner Kluy
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Patent number: 3971892Abstract: A timing circuit for use in pulse code modulation, time division multiplex switching networks is described. The switching networks are a part of a time division multiplex telecommunication system wherein each call uses the same time slot on the incoming and outgoing lines. The timing circuit has a number of word-organized storage locations equal to the number of PCM words per pulse frame and an equal number of address memory locations individually assigned to the aforementioned storage locations. The word-organized storage locations are found by blocks of shift registers connected in series. Each block in the series is connected over the non-operating positions or rest positions of pairs of simultaneously actuated switches to the next succeeding block. In their operating positions the switches connect the shift registers to the conductors of a service trunk system. The address memory locations are formed from a second series-connected shift register group connected to form a ring.Type: GrantFiled: April 21, 1975Date of Patent: July 27, 1976Assignee: Siemens AktiengesellschaftInventor: Max Schlichte
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Patent number: 3971804Abstract: Bis-trifluoromethyl-imino-imidazolones of the formula ##SPC1##In whichEach R independently is hydrogen or methyl,R.sup.2 is a radical selected from the group consisting of bridged rings; fused rings; directly linearly linked rings; rings linked through oxygen, alkylene, oxyalkylene or alkylenoxyalkylene; and substitution products of any of the foregoing with halogen, alkyl or alkoxy with 1 to 4 carbon atoms; said radicals comprising at least two carbon rings, at least one of which is non-aromatic;R.sup.Type: GrantFiled: January 21, 1975Date of Patent: July 27, 1976Assignee: Bayer AktiengesellschaftInventors: Arno Widdig, Ingeborg Hammann, Helmut Kaspers
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Patent number: 3971845Abstract: Recovery of hydrofluoric acid from aqueous fluosilicic acid by treating said aqueous fluosilicic acid at a temperature of from 100.degree. to 300.degree.C. and under a pressure of from 3 to 80 atmospheres and separating resulting hydrogen fluoride containing aqueous phase and silicon tetrafluoride containing gaseous phase and optionally hydrolyzing the silicon tetrafluoride containing gaseous phase in aqueous medium and recycling the aqueous fluosilicic acid to the process as starting material.Type: GrantFiled: September 26, 1973Date of Patent: July 27, 1976Assignee: Bayer AktiengesellschaftInventors: Wolf Becker, Wolfgang Weiss
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Patent number: 3971741Abstract: Waterinsoluble polyazo dyestuffs of the formulaX(O-OC-D-N=N-K).sub.mIn which K denotes identical or different radicals of a coupling component, X denotes an aliphatic radical which is free of hydroxyl groups and is optionally interrupted by heteroatoms, or an aromatic-carbocyclic, aromatic-heterocyclic or araliphatic radical, D represents an aromatic-carbocyclic or aromatic-heterocyclic radical and m represents the numbers 2 or 3. These dyestuffs are useful as dispersion dyestuffs for coloring synthetic fibers and most especially as pigment dyestuffs for coloring paint, inks, paper, and macromolecular substances and for admixing with other substances such as inorganic white pigments including titanium dioxide.Type: GrantFiled: July 9, 1974Date of Patent: July 27, 1976Assignee: Bayer AktiengesellschaftInventors: Georg Dehmel, Johannes Blahak
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Patent number: 3971343Abstract: This invention relates to devices for cleaning the surfaces of pipes, and, in one embodiment particularly useful for cleaning the surfaces of suspended pipe coils in boilers, comprises a drive-cylinder actuated, two-armed lever, interconnected with the pipes to be cleaned by means of upper and lower connectors, wherein the arms of the lever are unequal in length and the distance c of its pivot point below the suspension level of the pipe coils with which it is associated, is equal to 2ab/(a+b),Where a is the distance of the upper connector from said suspension level and b is the distance therefrom of the lower connector.Type: GrantFiled: March 31, 1975Date of Patent: July 27, 1976Assignee: Deutsche Babcock & Wilcox AktiengesellschaftInventors: Erich Ulrich, Adrianus Reinier VAN Liempt
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Patent number: 3971678Abstract: Alloy steel sheeting for electrical purposes such as the cores of transformers, is made with isotropic magnetic properties by a method in which steel containing, by weight, up to 0.1% carbon, from 0.15 to 0.35% manganese, from 0.3 to 2.4% aluminium up to 0.25% copper, up to 0.5% sulphur, up to 0.2% phosphorus, up to 2.0% silicon and the balance iron except for impurities is hot rolled at a temperature of from 820.degree. to 1080.degree.C to cause at least 5% of it to have a crystal orientation {100} <hkl>. After this the sheet is cold-rolled with a reduction in cross-section of from 50% to 85% and then it is recrystallization-annealed at a temperature of from 820.degree. to 1200.degree.C. Preferably the cold-rolling is carried out in two stages and the sheet is annealed for from 10 to 30 minutes at a temperature of from 550.degree. to 950.degree.C between the two stages.Type: GrantFiled: June 20, 1974Date of Patent: July 27, 1976Assignee: Stahlwerke Peine-Salzgitter AktiengesellschaftInventor: Constantin Vlad
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Patent number: 3971515Abstract: A ball mill having a wall forming a hollow tubular grinding chamber therein with balls or rods within the chamber and means for driving the chamber in a vibratory grinding motion with a fixed body in the form of an elongate shaft within the chamber supported on a tubular wearing plate having a gap along one side and springing outwardly to support itself firmly within the grinding chamber and having arms extending between the wearing plate and the fixed shaft for supporting the shaft and a removable end for the grinding chamber so that the shaft and wearing plate can be removed for replacement from the grinding chamber.Type: GrantFiled: December 12, 1973Date of Patent: July 27, 1976Assignee: Klockner-Humboldt-Deutz AktiengesellschaftInventors: Helmut Haas, Manfred Wolf
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Patent number: 3971201Abstract: A false twist crimping apparatus having an elongated contact heater with pivotable yarn guides in operating positions at either end of the heater, one yarn guide being shiftable lengthwise of the heater on a carrier means, said apparatus also including a pivotable rocker cam engaging the shiftable yarn guide when in its operating position for the transfer of pivot movements from the cam to the guide and linking means to connect the rocker cam with the other yarn guide to synchronize the pivot movements of the cam and both yarn guides, thereby applying the yarn onto or removing the yarn from the contact heater.Type: GrantFiled: August 7, 1975Date of Patent: July 27, 1976Assignee: Barmag Barmer Maschinenfabrik AktiengesellschaftInventor: Wolfgang Hartig
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Patent number: 3971588Abstract: A frame for the body of a vehicle, specifically a passenger automobile, has a box-like framework which includes a roof frame, a base frame, corner columns connecting the roof frame and base frame, and at least one supporting structure. The supporting structure is essentially aligned in the longitudinal direction of the vehicle outside the box-like framework and comprises two symmetric fork-shaped girders with their outer prongs connected to corner columns, their inner prongs connected to the base frame and their struts connected to a bumper.Type: GrantFiled: June 20, 1974Date of Patent: July 27, 1976Assignee: Volkswagenwerk AktiengesellschaftInventor: Andreas Bauer
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Patent number: 3971459Abstract: A protective housing is provided for electrical rails and the like, namely, reaction (secondary) rails and slide pick-up lines for operating electro linear propulsion motors for monorail vehicles. The new and improved housing is of simplified construction and enables comparatively large protective plate members to be assembled in the form of a tight housing on elevated monorail structures. The protective plates may be readily removed and slidingly displaced to expose the normally protected electrical components for maintenance, replacement or repair.Type: GrantFiled: January 13, 1975Date of Patent: July 27, 1976Assignee: Demag AktiengesellschaftInventors: Klaus Becker, Hartwig Sprung
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Patent number: 3971790Abstract: 2-Amino-1,4-dihydropyridines bearing a carbonyl function in the 5-position and being optionally substituted by lower alkyl or phenyl in the 6-position, and the corresponding 2-amino-1,4,5,6,7,8-hexahydro-5-oxoquinolines, which derivatives are further substituted by a carbonyl group in the 3-position and optionally substituted in the 4-position by lower alkyl, phenyl, substituted phenyl or a heterocyclic group are antihypertensive agents and coronary vessel dilators. The compounds, of which 2-amino-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3,5-diethyl ester is a representative embodiment, are prepared through condensation of an ylideneacetoacetic acid ester and an amidine.CROSS REFERENCEThis is a division of Ser. No. 438,603 filed Feb. 1, 1974, now U.S. Pat. No. 3,929,798, which in turn is a division of Ser. No. 336,639 filed Feb. 28, 1973, now U.S. Pat. No. 3,867,393.Type: GrantFiled: May 5, 1975Date of Patent: July 27, 1976Assignee: Bayer AktiengesellschaftInventors: Horst Meyer, Friedrich Bossert, Wulf Vater, Kurt Stoepel
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Patent number: 3971808Abstract: Spirodipyrans based on condensed pyrylium salts and 4-dialkylamino-2-hydroxybenzaldehydes, their manufacture and their use as chromogenic materials in pressure-sensitive recording materials, particularly copying papers.Type: GrantFiled: May 7, 1974Date of Patent: July 27, 1976Assignee: BASF AktiengesellschaftInventors: Hans Baumann, Andreas Oberlinner
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Patent number: 3971117Abstract: A method for repairing eroded bottoms of ingot molds by forming a casting space in the bottom of the mold at the point of erosion, the casting space having an hour-glass type shape, placing the ingot mold on a molding platform so as to close off the bottom of the casting space with a refractory material, placing a protective layer of a compactable refractory material about the interior of the mold and introducing to the casting space an alumino-thermic material and then igniting said alumino-thermic material such that the weld metal from the reaction thereof completely fills the casting space. Methods for repairing the bottoms of closed bottom as well as plug bottom molds are disclosed.Type: GrantFiled: July 23, 1975Date of Patent: July 27, 1976Assignee: Hilti AktiengesellschaftInventors: Richard E. Osterhout, Walter A. McCray, Mark J. Rudowicz
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Patent number: 3971253Abstract: The invention is a flow meter comprising a magnetic field-dependent resistor arrangement whose resistances are controlled by a particularly configured control member. More specifically, the position of the control member controls the degree of flux passing from the permanent magnet of the resistor arrangement through the two magnetic field dependent resistors of the arrangement. The resistance values of the resistors thus vary as a function of the position of a control member. According to the invention, the control member comprises a throttle plate having one end clamped elastically to the flow chamber of the meter and the other end within and free to move with the medium flowing in the chamber.In this manner, by varying the pressure head of the flowing medium, the amplitude of motion of the throttle plate, and, hence, the resistance values controlled thereby are varied. A sensitive flow meter having a simple construction is thus realized.Type: GrantFiled: June 19, 1975Date of Patent: July 27, 1976Assignee: Siemens AktiengesellschaftInventors: Paul Hini, Bernt Paul
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Patent number: 3972036Abstract: An arrangement for rapidly switching a high frequency magnetic field includes parallel resonant circuits which are supplied with sine or cosine current, respectively, comprise coils which are arranged cross-wise in respect of each other and a switching member is connected parallel to each coil. The switching member comprises a controllable voltage source which is connected by way of an RC circuit to an end of the resonant circuit, and a transistor is connected between the other end of the resonant circuit and a reference potential.Type: GrantFiled: April 8, 1974Date of Patent: July 27, 1976Assignee: Siemens AktiengesellschaftInventor: Franz Navratil
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Patent number: 3971796Abstract: A new class of 1,4-dihydropyridines which are characterized by the presence of ester substitutes at positions 3 and 5 of the nucleus and by the presence of an alkoxyalkyl at position 2. The products exhibit coronary activity and have particular application as coronary dilators, antifibrillators, anti-hypertensives, and as muscular and vascular spasmolytics.Type: GrantFiled: August 29, 1975Date of Patent: July 27, 1976Assignee: Bayer AktiengesellschaftInventors: Friedrich Bossert, Egbert Wehinger, Wulf Vater, Kurt Stoepel
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Patent number: 3971731Abstract: Benzodifuran compounds of the formula ##SPC1##WhereinR represents alkoxy, aralkoxy, aryloxy, cycloalkoxy, hydroxyl, an oxygen atom linked to the radical Ar, or the group ##EQU1## R.sub.1 and R.sub.2 independently of one another denote hydrogen, alkyl, aralkyl or aryl, or together denote a saturated carbocyclic or heterocyclic ring and Ar denotes an aromatic-carbocyclic or aromatic-heterocyclic radical, with the proviso that Ar denotes a substituted benzene radical if R represents C.sub.1 -C.sub.2 -alkyl,Are suitable as optical brightening agents and UV-absorber for organic materials.Type: GrantFiled: March 20, 1975Date of Patent: July 27, 1976Assignee: Bayer AktiengesellschaftInventors: Peter Hartmann, Hans Theidel