Abstract: The device is provided with at least one laser diode (2) and two electric connecting members for connection to an electric power supply (8) for supplying said at least one laser diode. It includes two elements (14, 16) which can be elastically deformed or moved, which are conductive electrically and arranged in a base electrically insulated from the two connecting members. The two elastically deformable or moveable elements are electrically connected and arranged so as to abut against two respective contact surfaces (34, 36) of the two connecting members when the device is not connected to said power supply by means of an external connector (40) which is complementary to the two electric connecting members. The two elastically deformable or moveable elements are respectively separated from the two connecting members when the external connector is introduced or are able to be respectively separated from said two connecting members when the external connector is introduced.

Abstract: The method consists of introducing the dripper units (1) one after the other inside a conduit (2) while the latter is being formed in an extruder (10), then calibrated in a calibrator (13), heat welding the dripper units (1) to the inner wall (3) of the conduit (2) gradually as it progresses downstream of the extruder (10), then cooling the conduit (2) and perforating it opposite each dripper unit (1) to make it communicate with the exterior. According to the invention, the heat welding operation is executed downstream of the calibrator (13) by pinching the dripper unit and the wall of said conduit between first and second opposing surfaces (20, 22b) one of which is driven at the speed of progression of the conduit (2) and the other is arranged on a fixed support member (16) forming a feed guide for the dripper units (1). The dripper units are presented for the pinching operation one after the other contiguously by their ends.

Abstract: The invention relates to a mill for rolling pipes or other bodies such as flat blooms, bars, rods and the like. The rolling mill is formed by an outer load-bearing structure in which holders are accommodated so as to be extractable therefrom; in the holders there are mounted lever arms (18, 19, 20) that are pivotable transversely to the rolling axis along which the pipes or bodies to be rolled advance. The arms support the working rolls (48, 49, 50) at one end and, at the other end, are secured to the respective holder by means of a pin (22, 23, 24). In the rolling mill of the invention, there are advantageously means for rotating the olders about the rolling axis; this enables the rolls (48-50) to be brought back to the ideal working condition when their dimensions are reduced as a result of periodic machining to which they are subjected for maintenance and their working attitude can no longer be reestablished solely by the swinging movement of the lever arms (18-20) that support them.

Abstract: An apparatus for the treatment of exhaust gases containing hydrogen which permits always stable treatment with certainty of the exhaust gases from a semiconductor manufacturing line or the like irrespective of violent fluctuations in the flow rate of the exhaust gases, without having adverse effects on the operation of the semiconductor manufacturing line. The apparatus comprises: an ejector-type vacuum generator having a suction port connected to the discharge source of exhaust gases containing hydrogen and having a drive fluid supply port connected to an oxygen supply source, a hydrogen-oxygen reactor provided with a catalyst and connected to a drive fluid discharge port of the vacuum generator, and a drain reservoir connected to an outlet of the reactor for storing water discharged therefrom.

Abstract: A base station (13) for a contactless interrogation system includes an oscillating device (23) supplying a control signal having a frequency which is adjustable via adjusting circuits (21, 22), a circuits (24) for controlling an antenna connected to the base station (13) for transmitting information, decoding circuits (25, 26, 27) for decoding the information picked up by the antenna. The oscillating device (23) is a voltage controlled oscillator which is phase locked by the adjusting circuits (21, 22), so that the control signal frequency is determined by the base station (13) and is adapted to the antenna. The sensitivity of a contactless interrogation system comprising the base station (13) of the present invention is improved, its structure is simpler and its different components can be integrated in a same chip.

Abstract: A multiple focal distance light collecting optical device, is characterised in that it consists of a monoblock structure formed of at least a first and a second transparent material (8, 10) formed into lenses (12, 14, 16,) which are applied against and attached to each other the refractive indices and radii of curvature of the faces of such lenses being determined to focus the light rays so as to create an image in accordance with at least two different focal distances (A, B).

Abstract: A zirconia based article having a core of ZrO2 and/or partially reduced ZrO2, characterized in that it includes, over at least part of its surface, a superficial layer integral with the article, the thickness of the superficial layer including a plurality of regions of which one external region is formed of zirconium nitride having a gold metallic appearance.

Abstract: An object constructed of silicon carbide is made up of a plurality of sintered silicon carbide component parts in simple solid forms. This approach allows the production of objects having configurations that are obtainable only with difficulty or not at all by prior art approaches. The component parts are inseparably connected together by means of a silicon carbide film integrally formed on said component parts by chemical vapor deposition. In order to provide substantially improved joint strength and overall structural strength, the silicon carbide film preferably has a crystal structure in which the X-ray diffraction intensity ratio of each crystal face to the (111) face is 0.1 to 10 and/or in which the aspect ratio of crystal grains is 1 to 30.

Abstract: A device for driving a wire pin, and in particular a Kirschner wire, into bone material, comprising a propelling device that acts upon the wire pin which may be inserted into the device from the free front end thereof, said propelling device being driven by periodically repeated impact strokes applied thereupon by an impacting member. The propelling device acts upon the wire pin without any clamping means being involved, which is achieved by the propelling device being designed as a transmitting member against which the free end face of the wire pin may evenly abut and which may transmit the impact strokes of the impacting member as impact pulses into the wire pin through the free end face thereof, with the impact pulses propagating through the wire pin as periodic compression waves so that the wire pin is successively driven into the bone material.

Abstract: There is provided a rolled plate joining apparatus equipped with a truck that can travel reversibly in the rolling direction, tailing end pinch rolls that are mounted on the truck and can be moved vertically with the tailing end of a preceding rolled plate pinched horizontally, leading end pinch rolls that are mounted on the truck and can pinch horizontally the leading end of a succeeding rolled plate, machining apparatuses for cutting one surface of the tailing end of the preceding rolled plate and the other surface of the leading end of the succeeding rolled plate, and a pressure welding apparatus for compressing the preceding rolled plate and the succeeding rolled plate with the machined surfaces of the preceding rolled plate and the succeeding rolled plate overlapped to reduce them approximately to the thickness of the rolled plates, including a tailing end centering apparatus placed between the tailing end pinch rolls and the pressure welding apparatus for pressing the opposite width ends of the tailing

Abstract: A timepiece includes a rotating member (1) and a contactless electric capacitive detection device for detecting positions and/or movements of the member. In order to avoid the problems posed by conventional systems with electric switches, the detection device includes at least one capacitive sensor (2), having one or more fixed electrodes (6, 7) and a toothed rotor (5) driven by the member, and an electronic detection apparatus (3) sensitive to variations in the sensor capacitance. The device may include two capacitive sensors whose output signals are in quadrature, in order to be able to indicate the direction of rotation of the member. The rotating member may be a time-setting control stem or another component such as the shaft of a watch hand.

Abstract: A method of making printing plates for color newspaper printing almost free from causing color dislocation. The present invention includes an exposure step 12 of directly drawing a desired image on a plate material E from a plate feeding step 11 by laser beam according to image drawing signals from a computer, a development and fixing step 13 of treating the exposed surface to produce a printing plate 5 with the desired image, and a bending and boring step 14 of forming bent edge stoppers 5a, 5b at the two edges of the printing plate 5 for mounting the plate 5 on the plate cylinder 4 and at least one positioning hole 5c for positioning the plate 5 on the plate cylinder 4. In the exposure step 12, pilot marks P in a desired shape are drawn near the two edges of the plate material E at the same time that a desired image T is drawn on the image drawing area Q of the plate material E according to image drawing signals from the computer.

Abstract: A device for actuating a timepiece mechanism, in particular a chronograph mechanism, this timepiece including a fitting ring (12) having an opening (14) for accommodating a movement (16), an independent push-button (4a, 4b) sliding along a first direction (D1), a piston (18a, 18b) sliding along a second direction (D2, D3) in the fitting ring (12), said piston (18a, 18b) being intended to co-operate with a component of the movement and a push transmission element to transmit a push of said pushbutton (4a, 4b) to said piston (18a, 18b), characterized in that the push transmission element includes a rigid actuation lever (22a, 22b) articulated at one point (P) on the fitting ring (12) and in the plane thereof.

Abstract: There are provided an electrically conductive grindstone 12 for machining a workpiece 1, a disc-shaped discharge electrode 14 having an outer peripheral edge 14a which can be disposed in the vicinity of a machining surface 12a of the grindstone, an electrode rotating unit 16 for rotating the electrode around an axial center Z, a position controller 18 for controlling a relative position of the outer peripheral edge of the electrode and the grindstone, a voltage applying unit 20 for applying a predetermined voltage between the grindstone and the electrode in a pulse manner, and a machining liquid supply unit 22 for supplying an alkaline liquid between the grindstone and the electrode.

Abstract: A fiber-bond type ceramic material 4 is produced by using as raw material fibers 1 inorganic fibers of Si—M—C—O synthesized by melt spinning polycarbosilane, then infusibilizing the produced threads, and firing the set threads, forming from the raw material fibers a woven fabric 2 having all the fibers thereof extended perpendicularly or obliquely relative to the direction of compression during the course of a hot-press fabrication at a weaving step 12, heat-treating the woven fabric in the air, thereby preparing a woven fabric of oxidized fibers 3 provided with an oxide layer on the surface thereof at an oxidizing step 14, and subjecting the woven fabric of oxidized fibers to a hot-press fabrication while compressing the fabric in the direction of the compression thereby causing the oxide layers on the surface to adhere fast to each other and form a matrix at a hot-press step 16.

Abstract: A print head having an ink reservoir therein is made by forming, in a one-shot plastic injection molding step, a rigid monolithic frame comprising high melt temperature material having an opening therein extending from a first side to a second side, and first and second bonding surfaces surrounding the opening and facing the first and second sides, respectively. First and second thin flexible films are adhesively secured to the first and second bonding surfaces, respectively. The adhesive material may be a hot melt adhesive or dry adhesive films pre-formed to the shape of the bonding surfaces. By securing the flexible films to the bonding surfaces adhesively, rather than by heat staking, it is not necessary to form the frame of different materials during two separate molding steps.

Abstract: The present invention concerns a method for optimising the etching rate of a polycrystalline layer having a predetermined composition comprising at least two chemical species arranged in the form of grains and grain boundaries, this layer having to be formed on a semiconductor substrate by a deposition process whose parameters have to be determined, and by a etching process with a reactive agent capable of reacting with the preponderant species in the layer. This method defines a structure parameter representing the grain boundary density of the layer, and comprises a step consisting in determining the smallest structure parameter value from among different samples having the predetermined composition, this value being considered as that which optimises the etching rate.

Abstract: A self propelled windrower having no brake pedal is provided with a signal light system conforming to standards for agricultural equipment traveling on public roads. The ground speed of the equipment is sensed and, after it exceeds a threshold speed, computation of equipment acceleration/deceleration begins. When the deceleration exceeds a deceleration threshold, the brake lamps are enabled according to the settings of left turn and right turn signal switches. The brake lamps are enabled as long as the deceleration exceeds the threshold and for a short interval (2 sec) thereafter. If the speed drops below the speed threshold during the short interval, the brake lamps are enabled for an extended period (2 min).

Abstract: The electronic assembly (20) includes an electronic unit (24), formed of an electronic module (26) and two conductive tongues (28, 30) defining two electric contact pads of said electronic unit, and a coil (22). The body (40) of the coil (22) is partially superposed onto the two tongues and fixed to the latter in a durable manner by means of a solidified binder material. The two ends of the coil are bonded respectively onto the two tongues (28, 30).

Abstract: In the partial-regeneration cycle gas turbine system wherein part of the air compressed by a compressor 2 is extracted before a combustor 3, mixed with steam, and after the mixed gas is superheated by exhaust heat of a turbine, and the mixed gas is injected into the combustor, high-pressure steam is used as a fluid for driving a first mixer 22 that compresses extracted air, to increase the ratio of extracted air to steam, and then this mixed gas of extracted air and steam is further mixed with low-pressure steam from a low-pressure exhaust heat boiler, in a second mixer, and the mixture of gas is superheated in a superheater 6 by exhaust heat of the turbine, and injected into the combustor. Thus, the pressure of the driving steam can be raised, an exergy loss in an exhaust heat recovery portion can be reduced, and the efficiency of power generation can be increased without reducing the flow of generated steam.