Abstract: In a physical vapor deposition method of thermochemical treatment of metals, the substance of a target which constitutes a first electrode of a treatment furnace is evaporated by ion bombardment optionally assisted by an electrical arc discharge. The particles evaporated in this manner are deposited onto a substrate at the potential of a second electrode which is different from that of the first electrode. The substrate is heated during this deposition to a treatment temperature exceeding 600.degree. C. and preferably between 800.degree. C. and 1 200.degree. C. The target and its ancillary members in the furnace are continuously cooled by a flow of cooling fluid so that when the treatment temperature is reached the material of the target remains solid and the evaporation occurring at the surface of the target is effected by sublimation. The result is to improve the regularity of the deposit, its adherence to the substrate and the treatment time.

Abstract: A tool mounting apparatus comprises a main shaft including an insertion hole and a stop flange, and an insertion part including a main body, an annular engage member disposed around the main body, wedge members and an annular clamp member disposed outside the annular engage member and biased in the axial direction. When the main body with a tool mounted is put in and abuts the insertion hole and lock nails formed on the annular engage member engage the stop flange, the wedge members are held firmly by the annular clamp member in the bottom portion of the space between a first receive wall provided on the main body and a second receive wall provided on the annular engage member. The tensile force exerted from a work piece through the first wall, the wedge members, the second wall and the lock nails is borne by the stop flange and does not move the tool.

Abstract: Detector comprising a sensor and a processing circuit connected to a load by means of two wires. Two switches (I1, I2) are arranged in series in a switching circuit leg (21), the ends of which (C, D) are connected to the detector terminals and the middle point (S) to a terminal (F) of the processing circuit. When operating (I1) is conductive and (I2) determines a parallel regulation of the voltage (V) at the processing circuit (12) terminals ; when in rest position, (I1) determines a series regulation of the voltage while (I2) is blocked.

Abstract: The device includes two identical half-rails disposed symmetrically with respect to the upper longitudinal edge of the wall of the shelf-unit. Each half-rail includes one member whose internal face is welded to an angle steel with a horizontal wing, and one central support plate in support on blocks secured to the horizontal wings. The plate has transverse cracks superimposed on guiding holes borne by the blocks. The mutual spacing of the half-rails is adjusted at will and the entire unit is fixed in the selected position by a screw traversing the superimposed crack and hole. A mobile support member of a decoration element includes superimposed elements each having horizontal wings housing a horizontal guiding track integral with the central plate. Screws are able to tighten together the elements so as to immobilize the support member in any selected position along the guiding track.

Abstract: An eccentric forms part of a cylinder on which a control lever is mounted so that it can rotate in the housing forming part of the arm, where a second eccentric also forms part of the cylinder acting in conjunction with a pressure stud working together with a clamping plate located freely around a guided stop rod along the length of the pivoting arm in the housing and in a guide forming part of the arm, where one extremity of the stop rod works in conjunction with a bearing block forming part of the vertical column, and where a pressure spring is located between the stop rod and the pressure plate, the whole being intended to displace slightly and simultaneously fix the tool at a distance from the wheel, both in the vertical plane and in the horizontal plane.

Abstract: Mixed gas of nonoxidizing gas and oxygen is blown into molten chrome steel in a vessel. The molten chrome steel is stirred by the gas and is decarbonized by the oxygen in the gas while being stirred. After the carbon potential in the molten chrome steel has been lowered, the pressure inside the vessel is reduced and the nonoxidizing gas alone is blown as the gas. Bubbles of the gas blown into the molten chrome steel become large on account of reduced pressure and exhibit sufficient stirring function. Consequently, the molten chrome steel is effectively stirred and the decarbonizing reaction is prompted.

Abstract: A switch device using a main switch coupled to a monostable auxiliary switch through a releasable coupling is disclosed. In this device, the auxiliary switch and the main switch are closed in succession by simultaneous movement of their respective contact-holders and are opened in the reverse order by virtue of the presence of the releasable coupling which is released during closing and engaged during opening.

Abstract: Terminal block for automation device, notably for programmable controller, mounted movably and electrically connected to an interface module. The lateral wall of the body of the terminal block which is situated on the side of the openings for passage of the flexible leads connected the units of the automated system comprises a pivoting flap.

Abstract: At least one dimension of the transverse cross-section of an object is measured in a predetermined direction by scanning the cross-section at constant speed with a laser beam which is moved in the plane of the cross-section but remains perpendicular to this direction. Successive pulses are generated representing the times, opto-electronically detected, at which the downstream side beam disappears and reappears. An electronic window is generated from said pulses during each of the time intervals of interception of the beam by the object. Clock pulses are counted during each of the windows and each of the counts obtained is compared with a predetermined digital threshold to validate the respective measurement.

Abstract: A core bar member for a rubber crawler which includes a pair of projections, each having an upper face and left and right wing portions, the upper faces of the pair of projections protruding to a fixed height upward and having protruding parts having a width direction and of a fixed length in the width direction of the left and right wing portions, the upper faces of the left and right projections including the protruding parts being upwardly arcuate and having a center portion of the upwardly arcuate protruding parts being the bottom thereof. In accordance with a second embodiment the pair of the upper faces of the projections are upwardly arcuate and each has a center portion with the center portions being the bottom thereof, the protruding parts provided only in one side and extending in opposing directions to each other. In accordance with a third embodiment the pair of the upper faces of the projections are inclined upwardly in opposing directions to each other.

Abstract: The drum of the installation is provided with a double wall which is closed on its rear end and where the inside wall of which is provided with openings, with a hollow central tube provided with openings the rear end of which tube is closed, and with radial double walls provided with openings and which connect said tube and the double drum wall with one another, where a duct is provided for blowing incineration air directly into the drum and a duct for at least partially recycling the burnt combustion gases from the drum and returning them to the drum, for cooling the double drum wall, controlling the furnace temperature and preventing waste from baking onto the drum.

Abstract: A reversing contactor apparatus in a single case is disclosed, comprising electro-mechanical locking means.These means which comprise a mobile mechanical locking piece, further having surfaces for actuating locking switches, are placed substantially in the plane of a median dividing wall, on each side of which each of the two contactors of the apparatus are disposed; these conductors connect these switches in series to each contactor coil and, respectively, to a connection terminal.

Abstract: Modular electronic unit comprised of pivotably mounted modules leaning against a support in the form of a plate, notably for programmable controllers. A tightening spring is placed between the housing of each module and the support, near the lower rear end of the housing, and is gradually brought under stress by pressing on a heel during pivoting of the module, while stops of the housing come and rest frontally against the web plate of the support.

Abstract: An air guide element is installed between air supply vent and the inside of he door of the heating appliance which consists of an adjustable damper for regulating the supply of secondary combustion air and ballast air in the appliance and in which at least one heat sensitive element is connected between said damper and one of the components of the heating appliance which serves to adjust said damper, which element reacts to the prevailing temperature in the combustion chamber of the appliance.

Abstract: In a physical vapor deposition method of thermochemical treatment of metals, the substance of a target which constitutes a first electrode of a treatment furnace is evaporated by ion bombardment optionally assisted by an electrical arc discharge. The particles evaporated in this manner are deposited onto a substrate at the potential of a second electrode which is different from that of the first electrode. The substrate is heated during this deposition to a treatment temperature exceeding 600.degree. C. and preferably between 800.degree. C. and 1,200.degree. C. The target and its ancillary members in the furnace are continuously cooled by a flow of cooling fluid so that when the treatment temperature is reached the material of the target remains solid and the evaporation occurring at the surface of the target is effected by sublimation. The result is to improve the regularity of the deposit, its adherence to the substrate and the treatment time.

Abstract: A loud horn for motor vehicles which comprises a hollow housing sealed off by a diaphragm and bearing a vibration electromagnetic generator inside the housing with a coil frame in which the housing is provided with a hole connecting the inside of the housing with the outside allowing for respiration of the loud horn. In order to communicate with said hole, the frame has at least one smaller diameter pipe in order to allow air to penetrate inside the housing, the pipe being provided with a filter preventing water from penetrating inside the loud horn.

Abstract: A switch device with two modes of operation includes at least one switch comprising, carried by a substrate, two conductive lands and an electrically conductive elastic capsule in contact with one land and, in the unoperated condition, overlying the other land so as to be capable of being urged into contact with the latter. An electrical signal from a source is applied to the capsule. A circuit measures variations of the signal due to the proximity of an electrically conductive object. The device can be used to implement matrix keyboards combining the functions of a conventional keypad and a tactile pad.

Abstract: A triaxial ring laser gyroscope with three square optical paths which are planar and orthogonal with respect to one another, this laser gyroscope comprising six optical mirrors interconnected two by two by means of twelve optical path segments (capillary channels), said segments forming an octahedron, with one mirror for each corner, each of the mirrors operating simultaneously in two orthogonal optical paths.