Abstract: The sound to be identified is converted into an electrical signal which is applied to an amplifier (11), a filtering circuit (13) and a calculation device (20); the calculation device comprises a microprocessor (21) and associated memories (22,23) comprising a table of the identifiable notes and octaves, so as to work out a representative value of the frequency of the sound to be identified, to control the reading in the table of notes (23a) in relation to the said worked out value and so as to control the display of the note read on display means (27) connected to the calculation device (20).

Abstract: A bathtub self-cleaning system includes a series of pop-out spray nozzles designed to be arranged about the confining walls of a bathtub and the like. The spray nozzles are connected by a manifold to a combined concentrate and dilutent mixing control valve. The control valve serves to initially mix the dilutent such as water with the concentrate such as a detergent to provide a diluted cleaning solution. Subsequently, the control valve discharges the cleaning solution via the manifold through the spray nozzles. The spray nozzles when popped-out are directed at the surfaces of the confining walls for their cleaning by the cleaning solution. Upon consumption of the concentrate within the mixing control valve, only dilutent is discharged therefrom to rinse the confining walls of residual cleaning solution or dirt. In this manner, a bathtub may be automatically cleaned without the necessity of any manual scrubbing thereof.

Abstract: The disclosure relates to an apparatus for measuring temperature, comprising a temperature-sensitive sensor (1, 1'), whose electric properties, for example, resistance, vary with the temperature, for example, one thermistor (2, 2', 3 or 3') which is connected to electric lines (5, 6) which, in turn, may be connected to a read-off unit for reading off the values of current, voltage or the like corresponding to the temperature. In the apparatus according to the invention, the electric lines are disposed between two insulating layers (7, 8) which present mutually offset holes (9, 10) each in register with their respective line (5, 6), whereby these may easily be connected to different sensing terminals in the above-mentioned read-off units.

Abstract: Methods and apparatus for scrubbing gaseous mixtures containing ammonia are disclosed in which the gaseous mixtures are contacted with methanol in a scrubbing column to remove any acidic gases therefrom, the methanol is separated from the acidic gases and recirculated, and at least a portion of the methanol is contacted with an ion exchange material so as to remove at least a portion of the ammonia therefrom. In one embodiment of the invention, the method and apparatus also includes addition of methanol to the gaseous mixture prior to contacting in the scrubbing column so as to produce a methanol-water mixture with any water contained in the gaseous mixture and prevent the icing thereof, and includes separating the methanol-water mixture from the gaseous mixture prior to contacting with the scrubbing column as well as separating the methanol from the water and recirculating the methanol.

Abstract: A fully automatic system for folding stockings or a like long, substantially flat, non-rigid article around a cardboard insert, including foldable insert, and enclosing the stockings with the insert in an envelope of transparent, thermoplastic material. A great deal of saving of manual labor enables ideal streamlining of the whole process for manufacturing stockings for remarkable reduction in manufacturing cost. Sealing of the envelope containing the stockings with gummed tapes may be performed fully automatically, also.

Abstract: A tubular filler rod or filler wire the metal sheath of which is composed of two members, to wit, an outer seamless tube and an inner tube consisting of a strip bent into tube shape and confining a compacted powder core. Also, a method of manufacturing a tubular, powder-cored filler rod or filler wire in which a metal strip is bent to form a trough which first is fitted with a powder composition and then closed to form a tube enclosing a core of the powder composition; the tube is slid into a second, seamless tube which is then submitted to a cold-drawing operation.

Abstract: An indexing machine utilizes a rotating assembly for incrementally rotating a workpiece which is releasably held by a gripping mechanism adapted to rotate conjointly with the rotating assembly. The gripping mechanism is movable between a first position in which the gripping mechanism grips the workpiece and a second position in which the gripping mechanism releases the workpiece. The gripping mechanism is automatically and constantly urged towards its second position so as to facilitate the release of the workpiece from the gripping mechanism. Indexing plates, which determine the increments of rotation of the rotating assembly, are positioned at one end of the rotating assembly so that they may be quickly and easily removed. The rotating assembly includes a first member and a second member, which is mounted for reciprocating movement relative to the first member. A locking device releasably locks the second member to the first member so that the second member can rotate conjointly with the first member.

Abstract: A method and apparatus for sealing plastic or synthetic coated sealing surfaces of cardboard containers to each other is disclosed. One feature of the invention resides in preheating (by 15) of at least one (48) of the plastic or synthetic layers and then sealing (station 16) by the simultaneous application of heat and pressure. Another feature of the invention resides in the fact that the pressure is applied at spaced intervals (by 40) and in such a manner that one (47) of the plastic or synthetic sealing layers remains with the top of the box upon removal thereof. A container sealed in such a manner is also taught.

Abstract: A foundry manipulation method and device for foundry castings or equipment and in particular for molten metal, constituted by a frame 1 supporting an arm 9 to one of the ends of which there is fitted a member 11 for supporting castings, equipment or metal. According to the invention, the frame 1 comprises a fixed part 2 and a mobile part 3 rotating relative to part 2 about a vertical shaft. The support member 11 is hinged to end of the arm 9, arm is hinged in the vicinity of its other end 9b to the top of mobile part 3 about a horizontal pin 12 in such a manner that the support member 11 passes to a position directly above vertical shaft 3 during the movement of the arm 9 about its hinge 12, means 19 being provided to maintain support member in a vertical position, whatever the inclination of the arm.