Abstract: To manufacture a sound absorbing grinding wheel, vibration damping foils (2) and zones of the grinding compound forming the grinding layers (1) are alternately inserted or poured into a mold (5) and compressed. The obtained grinding wheel blank (7) is cured in a furnace at temperatures from 150.degree. C. to 200.degree. C. The foils (2) are of butyl rubber.
Abstract: Method and apparatus for detection and selective after-quenching of red hot pockets in previously quenched hot coke lying on a coke bench, in which the temperature of the coke is sensed and recorded over the entire surface or area of the coke bench by temperature sensors installed thereabove, and if excessively hot coke portions or local areas are found, only those excessively hot coke portions are acted upon for after-quenching automatically in controlled manner with a focused water jet or spray using only a minimum amount of water for as short a time as possible.
Type:
Grant
Filed:
June 12, 1985
Date of Patent:
September 30, 1986
Assignee:
Firma Carl Still GmbH & Co. KG
Inventors:
Dieter Stahlherm, Reimer Haack, Wilhelm Stewen, Helmut Lukaszewicz
Abstract: A chip collecting device for a routing tool is in the form of a hood or box having a wall surrounding part of the circumference of the routing bit. Chips thrown tangentially outwards from the bit are guided by the wall onto an upwardly sloping ramp when they pass into the suction current of a dust aspirating means that acts in an upward direction adjacent to the bit. The chip collecting hood or box is mounted on the lower side of an L-shaped stop in rails. The stop has a passage for the chips placed over the ramp.
Type:
Grant
Filed:
June 26, 1985
Date of Patent:
September 23, 1986
Inventors:
Peter Maier, Erwin Kutscher, Rolf Knauer
Abstract: A semiconductor photoelectric transducer which is an improvement of a field effect transistor or static induction transistor type photoelectric transducer, is provided with a plurality of gates on both sides of a source, for controlling a main current, and in which the distances between the gate regions and the source region are made different, thereby separating the functions of both gates to provide for enhanced performance.
Abstract: A hydrostatic or hydrodynamic shaft seal comprises a ring revolving with the shaft and an axially movable static ring which is sealed against the housing by two O-rings and forms, with the revolving ring, radial seal gaps. An incompressible fluid flows and stabilizes the seal gaps and the static seal ring has a cavity for receiving the stopping or cooling liquid. A number of tensioning spring elements are arranged on the circumference or end of the static ring which take support against a ring which serves as a pressure limiting valve.
Type:
Grant
Filed:
December 20, 1985
Date of Patent:
September 23, 1986
Assignee:
M.A.N. Maschinenfabrik Augsburg-Nurnberg AG
Abstract: This invention discloses a tricyclo[2.2.1.0.sup.2,6 ]heptane derivative of the general formula ##STR1## where X represents --CH.sub.2 CH.sub.2 -- or ##STR2## and R.sup.1 and R.sup.2 independently represent hydrogen or methyl, a process for preparing the same, and perfume compositions containing the same.
Abstract: Organic isocyanates are detected with an indicator comprising bis-4-(dimethylamino)-phenyl-methylenimine-hydrochloride provided on a carrier along with a catalyst for its reaction with the organic isocyanates contained in a tested gas. Through an acid developer brought subsequently into contact with the indicator, this reaction occurs and thus the concentration of the organic isocyanates is made evident by a red coloration of the indicator.
Abstract: A method and apparatus for the pattern-correct sewing together of two pieces of cloth having the same pattern by a sewing machine with one cloth feed mechanism arranged over and one arranged under the cloth pieces, the feed quantity of which is variably by at least one positioning system relative to each other, uses a sensor arranged upstream of a stitch forming point for each cloth piece and a signal processing unit which processes signals from the sensors corresponding to the relative position of the cloth pieces and which influences the positioning system for the feed mechanism in accordance with the established relative position of the cloth pieces. For the pattern-correct sewing together of the two cloth pieces, the pattern structure of each cloth piece is continuously determined by the sensors by measuring values of a structure-or pattern-typical criterion.
Type:
Grant
Filed:
December 19, 1984
Date of Patent:
September 23, 1986
Assignee:
Pfaff Industriemaschinen GmbH
Inventors:
Joachim Rosch, Heribert Geisselmann, Richard Wagner
Abstract: A hollow charge, or plate charge, lining, and a projectile charge coating, made from a composite material of tungsten and copper. Indicated are material proportions, grain sizes, and manufacturing methods.
Abstract: An attachment for the breathing gas supply during a high-frequency artificial respiration is connected to a ring conduit part in which the ventilation gas circulates. The attachment also comprises a patient connection part and a flow part connecting ring conduit part and patient part together. The parts are connected to each other by snap arms or rings. An injector nozzle and an ejector nozzle are mounted in the respective front walls of ring conduit part and patient connection part, in alignment with the apertures of the flow part which are designed as a collecting nozzle. The parts are sealed with each other by rings.
Abstract: Steam heating equipment for the interior of a room recirculating heating fluid after it has condensed in a heat emitter for heating the room. The heat media liquid is sealed in an enclosed steam generator which supplies steam to the heat emitter via a steam conducting pipe. The heat media liquid which has condensed in the emitter by giving up its latent heat to the ambient air, is stored inside a condensed liquid vessel which is under atmospheric pressure. When the heat media liquid inside the steam generator has been depleted to a certain level, the heating of the steam generator is stopped. The heat media liquid which has previously been stored inside the condensed liquid vessel is then recirculated into the steam generator through a liquid circulation pipe which is separate from the aforesaid steam conducting pipe, by utilizing a pressure reduction action within the steam generator causing its cooling.
Abstract: In an electronic musical instrument which generates a musical waveform by calculating the waveform amplitude value at each sample point through Fourier synthesis, there is provided a musical waveform generator for caculating and synthesizing a temporally varying musical waveform at a plurality of sample points, memory circuits for storing two kinds of musical waveforms obtained by the musical waveform generator one after the other and an interpolation circuit for interpolating the two musical waveforms at time intervals shorter than the time intervals used in the musical waveform generator.
Abstract: Waste gases and other noxious substances which are formed in connection with chemical processes and the manufacture of devices such as semiconductors and covalent hydrides and element organic compounds, etc. are treated so as to remove the noxious components.
Type:
Grant
Filed:
November 13, 1984
Date of Patent:
September 16, 1986
Assignee:
Heinrich-Hertz-Institute fur Nachrichtentechnik Berlin GmbH
Inventors:
Werner Fabian, Helmut Roehle, Peter Wolfram
Abstract: A fluid driven oscillating piston motor is made up of a housing, a shaft mounted in the housing so that it may be oscillated, and a piston running out from the shaft for turning it. The piston divides a space in the housing into two working spaces that are alternately pressurized and relieved of pressure so that the piston is turned through an angle as limited by an adjustable system of stops. The housing is split up into a shell and a lid therefor. Inner faces of the shell engaged by the piston are free or joins because it is made by molding or pressure casting. The shell and the lid are held together by a band with a clamping effect. The piston is joined to the shaft by means of a bush with internal splines fitted into splines of the shaft. A piston seal placed round the shaft is molded in one piece on the oscillating piston.
Type:
Grant
Filed:
August 30, 1984
Date of Patent:
September 16, 1986
Inventors:
Kurt Stoll, Georg Heid, Gerhard Schrag, Albrecht Wagner
Abstract: A measurement method for determining the state of coagulation of raw milk in a production process for, for example, cheese or yogurt. According to this method, the state of coagulation of milk can be determined by placing a metal wire in the milk and, while feeding an electric current continuously or intermittently to the metal wire, measuring the temperature of the metal wire over a given period of time.
Type:
Grant
Filed:
January 23, 1985
Date of Patent:
September 16, 1986
Assignee:
Snow Brand Milk Products Co., Ltd.
Inventors:
Tomoshige Hori, Masatoshi Kako, Hayashi Hiromichi
Abstract: A top transport device on sewing machines includes a spring-loaded presser bar mounted for vertical movement, which is firmly connected with a presser foot, and with a two-armed top transport rocker in operative connection at its upper end via a connecting linkage with a feed drive and carrying a top transport foot, the rocker being mounted on a seating disposed on the presser bar. To improve the kinematic connection between top transport foot and presser foot, the seating is mounted freely displaceable on the presser bar and connected with a bearing piece fastened on the presser bar via an articulated link mechanism, at the articulated joint of which a lifting drive engages. A transitional phase of the pressure shift between presser foot and top transport foot when the latter sets down on the work and when it lifts off results by a connection of the top transport rocker with the seating via a limitedly swingable link.
Abstract: In the regeneration cartridges used in respirators for carbon dioxide adsorption, heat and water are released. Especially the heat becomes a burden for the user. It must, therefore, be removed. To this end, a regenerant of the cartridge is followed by a cooling device which contains a coolant, e.g. water ice. The cooling device comprises a threaded member which is screwed into a screwthread type recess of the cartridge container. The breathing air then sweeps the cooling device in thermal contact in a spiral channel formed between the wall of the container and the insert and terminating in an outlet, as it cools the breathing air. The condensation collects at the lower point of the channel, where there is a spring-loaded drain valve, and when the valve has opened, it drains to the outside under the force of the positive respiratory pressure and a collecting condensate water column.
Abstract: To check the operating conditions of a power chuck, compressed air is supplied to the contact surfaces of the clamping jaws and/or of the workpiece to be clamped. Air passages are provided in the chuck body which open into the contact surfaces. The escaping air makes it possible to find out whether the contact is planar, and thus whether the clamping is exact.
Abstract: An axially semisymmetrical supersonic air intake comprises a semiconical reaction engine displacer body having an air gap between the flat bottom of the air intake of the displacer body in the outer contour adjacent thereto of a missile or aircraft. The body transmits the boundary flow of the missile or aircraft and is bridged by a boundary layer plow. The body has a circumferentially distributed aperture on its surface in a zone of external normal shock which is produced during the subcritical conditions oscillating back and forth by which communication is established with the bleed air channel. The bleed air channels lead openings in the body to the flat bottom and may be subdivided by partitions in the interior of the body into individual parallel passages. The channels are formed by semiconical air baffles which are coaxial with the displacer body and taper in a direction opposite to the taper of the displacer body.