Abstract: The attachment includes a generally U-shaped bracket having a pair of roll arms which are pivotally mounted intermediate their ends on the outer ends, respectively, the two arms of the U-shaped bracket. Each roll arm has a thread roll rotatably mounted on its outer end and a roller follower rotatably mounted on its inner end. The bracket is secured on the slide of a screw machine for reciprocation thereby in a direction selectively to engage the thread rolls tangentially with diametrally opposite sides of a rotating workpiece that is to be threaded.

Abstract: An expansion fastener for hardware elements for furniture comprises an externally ribbed anchor (11) in which an insert (13) is fitted, which insert has a cam surface (14) sliding on a corresponding cam surface (15) in the anchor body for causing a radial expansion of the anchor when the insert is moved by pulling means (16). The insert (13) comprises a fitting end (17) extending radially in a region free from the anchor body and is secured to the pulling means to be susceptible of inclination in the extension direction of said end (17). On axial movement towards the expansion position, the insert slides on the cam surface to receive a thrust for inclination and move said end outwardly of the anchor and towards the pulling direction.

Abstract: A modular system to form valve batteries comprises a plurality of valve units (11) to be variously packed in side by side relationship to form the battery. Each valve unit has a face (40) on which outlets for the users appear and through ducts (23, 24, 25) appear on lateral sides thereof, which are intended for being juxtaposed and connected with corresponding ducts (23, 24, 25) of units in side by side relationship. The valve units generally are of parallelepiped shape, the sizes of the mating sides (21, 22) being substantially constant for all units and the thickness of each unit varying on varying of the maximum flow rate of the specific valve unit, to enable a direct coupling between valve units having different maximum flow rates.

Abstract: A lens housing has an axial bore containing a lens system for projecting through the bore the image of an illuminated object which is located beyond one end of the lens housing. The lens housing is surrounded by a lamp housing which contains a plurality of spaced lamps that are operable to direct spaced, parallel, collimated beams of light through an open end of the lamp housing, and toward the object that is to be illuminated. A paraboiloidal or ellipsoidal reflector, which is interposed between the lamp housing and the object, has in one end thereof a relatively large diameter opening which is releasably secured over the open end of the housing, and has in its opposite end a smaller opening registering with, and for accommodating a portion of the object that is to be illuminated. The collimated light beams are directed by the reflector onto the portion of the object at angles of incidence in the range of 40° to in excess of 90°.

Abstract: The operation of a linear electric generator which includes a slide reciprocated by a pair of axially aligned internal combustion pistons, is improved by employing a control device that responds to a slide speed signal produced during each stroke of the slide. During at least one central area of each slide stroke the device controls current from the generator to produce a force that resists the slide motion and that is substantially proportional to the slide speed.

Abstract: An apparatus for controlled regulation of respiration depending on heart rate, in which the inspiration phase has a duration corresponding to a first multiple of the heartbeat period and the expiration phase has a duration corresponding to a second multiple of the heartbeat period, comprises a unit for heartbeat detection (14), a calculation unit (12) for processing data relative to heartbeat depending on external parameters and producing output signals which are a function of said multiples and external parameters, and signalling means (15) adapted to constitute a guide for the inspiration and expiration phases, piloted by said output signals. The apparatus may further comprise a respiration detecting unit (19), connected to the calculation unit (12) for comparison between the real respiration and theoretical respiration calculated by the calculation unit (12).

Abstract: The illuminator includes a housing having thereon a transparent work supporting stage overlying an opening formed in the top of the housing. A plurality of light sources in the housing emit an array of spaced, parallel light beams through a like plurality of collimating lenses which collimate each of the beams emitted by the sources. The collimated light beams pass through a light transmissive diffuser which is interposed in the housing between its opening and the collimating lenses, which homogenizes the collimated light beams produced by said lenses. The homogenized light then passes through the housing opening, either directly or via one or more reflective surfaces, onto a workpiece located on the stage. In certain embodiments the collimated light beams pass through a beamsplitter before passage through the diffuser.

Abstract: A machine for packaging products (11) with film (12) made of heat shrinkable material, comprises a body (13) containing a lower portion (14) of a shrinkage chamber which houses, wrapped in film (12), a product (11) to be packaged, and a cover (16), hinged to said body (13) and defining an upper portion (17) of the shrinkage chamber. Disposed in the shrinkage chamber (14, 17) are a heating unit (22) and a ventilating unit (26, 27) to create air circulation (29, 30, 31) inside said chamber. The ventilating unit (26, 27) is situated above the heating unit (22) to generate, when in operation, at least a flow of air (31) through the heating unit (22) in the direction of the bottom of the shrinkage chamber (14, 17).

Abstract: A method for making an aluminium material which is electroplated on its aluminum or aluminium alloy base with iron or an iron alloy containing 2-20 weight % of chromium, and which can be utilized as a new structural or functional material in various industrial fields. The material is characterized in having an inter-diffusion layer produced between the base and the plating and/or having such fine cracks produced in the plating which can reserve well machine oil, work well for painting it, and be impregnated with a resin for improving its wear resistance and so on.

Abstract: A method for carrying out endermic electrotherapeutic treatments by employing pulse-current generator (12) and a garment (11) adapted to be worn by a patient. The garment (11) is comprised of a plurality of electrically conductive discrete portions (13, 14, 15) for contact with relatively large areas of the patient's skin, and connected with insulating portions (16) intermediate between said conductive portions. The conductive portions (13, 14, 15) are provided with respective terminals (17, 18, 19) connected to the generator (12) by conductors (20, 21, 22).

Abstract: A hinge for furniture having a base (10) comprising a first element (41) which at the upper part thereof has coupling surfaces for a hinge wing and at the lower part thereof has a groove (20) receiving a second element (30) intended for being fastened to a piece of furniture. The first and second elements are mutually slidable in a direction transverse to the hinge extension by means of a rotary cam (27). The second element (30) is received in the groove in a drawer-like slidable manner in said transverse direction and the first element (41) comprises a through hole (25) disposed between the groove and the upper part. The cam (27) has a pivot pin (28) for rotation control which is fitted in said through hole (25) to be rotated therethrough, and the second element (30) has a face thereof turned towards the groove from which teeth (33, 35) forming reaction surfaces for the cam project, which teeth are disposed on opposite sides of the cam in the transverse direction.

Abstract: So that the brazing of aluminum parts with the use of a flux can be made effectively without employment of a corrodible metallic muffle, furnace inner walls made of carbonaceous refractory sheets are utilized as a brazing space, and an inert atmosphere supplied into this space is protected from the air by furnace outer walls which are made of steel sheets to form a furnace shell and which are made hermetical against the air.

Abstract: In order to prevent air pollution, gases evaporated from articles preheated in a preheating chamber of a continuous furnace are automatically and compulsorily sucked into a high-temperature chamber annexed to the preheating chamber by creating a negative pressure working in the high-temperature chamber. After the gases have been completely oxidized and decomposed in the high-temperature chamber at a high temperature and under an excess of oxygen, they are exhausted outside of the furnace via an exhaust-pipe extending through the preheating chamber, so that they join to heat the preheating chamber.

Abstract: A method of detecting a condition requiring connection of a user apparatus with a feeder line comprises the steps of low-voltage power supplying the user apparatus through a detection impedance (17, 17a); detecting the waveform at the ends of the detection impedance; operating connection of the user apparatus with the feeder line when the waveform at the ends of the detection impedance is distorted in a manner that has been pre-established to be caused by actuation of a command in the user apparatus and requiring full powering of same. A device in accordance with the method comprises an analysis circuit (19, 37) detecting (by comparison with sample waveforms stored in a memory (20), for example) distortion of the waveform at the ends of the impedance (17, 17a) and consequently operating powering of the user apparatus.

Abstract: A bottle straightening and aligning machine (10) comprises a bulk bottle ding hopper (11) whose internal side wall bears paddles (12) for pushing the bottles onto a helical guide (14) which extends along the internal wall. At the end of the guide the bottles (13) are unloaded into an annular compartment (15) arranged around the periphery of the upper edge of the hopper where the bottles are taken to run in cradles (21) on a support (18) broken to let the bottles fall into straightening conveyors (22) rotating integrally with the cradles. From the conveyors the bottles are unloaded into peripheral compartments of a ring (20) rotating coaxially around the hopper.

Abstract: A mounting element for accessories on shelves is described which has a clamp-shaped mouth (1) adapted to be coupled with an edge of a shelf and has two sides (3, 4) enclosing the edge.According to the invention, at least one side (3 or 4) has a seating (10) on its side opposite to the one in contact with the edge, which seating is adapted to be connected by geometric coupling to a portion (13; 15) of an accessory the shape of which matches that of the seating itself.

Abstract: So that the brazing of aluminium parts with the use of a flux can be made effectively without employment of a corrodible metallic muffle, furnace inner walls made of carbonaceous refractory sheets are utilized as a brazing space, and an inert atmosphere supplied into this space is protected from the air by furnace outer walls which are made of steel sheets to form a furnace shell and which are made hermetical against the air.