Abstract: A device for parting or cutting a tube by means of an explosive charge, comprising a pack of explosive annular pellets 20 and a fuse assembly. The fuse assembly comprises two mutually equal lengths of detonating fuse 10 and 11 of which one 10 extends axially through the said pack 20 and the other 11 is disposed at one end of the said pack 20. Fuse 10 extends between a first booster 17 adjacent to but not contiguous with said one end of the pack 20 and a second booster 18 at the other end of the pack 20, and fuse 11 extends between said first booster 17 and a third booster 19 at said one end of the pack 20. In this way the pack 20 is sandwiched between said second and third booster and simultaneous detonation of the pack 20 at its opposite ends is achieved, when required in use, by application of a single initiation system to the first booster 17.

Abstract: This invention is concerned with new .beta.-[2-(halogenobenzyl)-phenoxy]-ylamine derivatives of the general formula ##STR1## wherein R represents a C.sub.1 -C.sub.8 -alkyl group having a linear or branched hydrocarbon chain,R.sub.1 and R.sub.2, which may identical or different, represent each a C.sub.1 -C.sub.4 -alkyl-group, andAr represents a polychlorophenyl group of the formula ##STR2## (in which Y.sub.1 is 4-Cl, Y.sub.2 is H or Cl, and Y.sub.3 is H or Cl, at least one of the Y.sub.2 and Y.sub.3 being Cl); and their addition salts.These new compounds are useful as pharmaceuticals.

Abstract: A clutch for power screwdrivers. It has a transmission, an adjustable bit stop, and a drive shaft. It also has a cogwheel with cams on one face and a clutch disk with catches on one face mounted on the drive shaft. The object is a low-noise, wear-resistant clutch. The drive shaft is in one piece. An intermediate disk with catches on one face and cams on the other face is positioned between the cogwheel and the clutch disk. A spring mechanism is positioned between the cogwheel and the intermediate disk.

Abstract: Compounds of the formula: ##STR1## in which X represents one or two radicals selected from halogen, hydroxyl, alkoxy, alkyl, trifluoromethyl or methylenedioxy radicals, and their pharmaceutically acceptable salts, which may be used in the treatment of cardiovascular disturbances such as angina pectoris, hypertension and rhythmic disorders.

Abstract: An access window for use in fast food establishments and other similar drive-thru business establishments is disclosed. The window broadly comprises a semi-manually operated closing mechanism along with two planar window members. The closing mechanism employs substantially flat circumferential grooves cut into rotors located in a bottom hinge assembly. These rotors, together with a flexible elastic linkage, enable the uniform and smooth rotation of the window members from a fixed closed to a fixed open position and enable the window members to be rotated from a fixed open to a fixed closed position when either of the window members are pulled or pushed a short distance in the direction of the closed position.

Abstract: The method and apparatus are essentially characterized by the fact that the art (2, 201) is filled during a first phase with a gas under pressure from a source (10, 204), e.g. air, said air being cooled inside the part under test by means of an expansion nozzle (22, 79), and by a second phase in which variations in the pressure of the gas inside the part are observed by means of a pressure sensor (80, 214), and a processor unit (221) subsequently performs calculations based on the stabilization time for the pressure inside the part, the length of the measurement periods, the volume of the part, and the observed pressure variations.

Abstract: A process for the production of laminated capacitors constituted by a stack of dielectric layers separated by metallic foils or plates, those of the even and uneven rows being respectively interconnected by lateral electrical connections. A plurality of juxtaposed master capacitors is produced on a large diameter wheel and a common intercalated layer is used between two successive stacks of master capacitors. The separation of the master capacitor stacks takes place after metal spraying 1 of the lateral edges of the group, so as to maintain the equilibrium thereof and permit the metal spraying of the other lateral edge prior to the separation of the master capacitors and optional cutting up into individual capacitors.

Abstract: A thermal plant comprises a clear blue flame burner and a multi-tank boiler of stainless steel. The burner has a nosepiece welded to the boiler and a rear portion removably fixed to the nosepiece. The rear portion of the burner includes a labyrinth pathway for preheating the combustion air and a thermally insulating conduit for feeding fuel to an atomizer. The boiler has its furnace delimited by two water tanks, i.e. a main peripheral tank and end tank located downstream of the furnace and delimiting with the main tank a gap through which flue gases are conveyed to give off heat to the water in the tanks.

Abstract: A cargo compartment of a cargo carrier is bounded by a pair of generally vertical walls which extend in the longitudinal direction of the cargo carrier. At least two pairs of confining members are pivotally mounted on these walls for movement between operative and inoperative positions. In the inoperative positions, the confining members are generally parallel to the walls of the cargo compartment and the latter is capable of accommodating bulk goods. In the operative positions, the cargo compartment is capable of receiving containers and the confining members of each pair extend generally normal to the longitudinal axis of the cargo carrier and are in alignment with one another. The two pairs of confining members may be spaced from one another by several container lengths in their operative positions.

Abstract: The present invention provides a process and a device for manufacturing superposed mother capacitors comprising the spiral winding of metalized films on a wheel as well as periodic interpositioning of an insert. The position of an interpositioning device is made dependent on the position of the external layer of the winding, and at least a first means is moved from a rear position to a forward position. The first means may carry a second means and the travel paths of the first and second means may be adjusted by cams, more particularly for positioning a cutting device carried by said first means.

Abstract: The invention is dealing with antispasmodic compounds of the formula I ##STR1## in which R.sub.1 denotes H, halogen or a linear or branched C.sub.1 to C.sub.3 alkoxy or alkyl group, R.sub.2, R.sub.3 and R.sub.4 separately denote a linear or branched C.sub.1 to C.sub.4 alkyl group or R.sub.2 and R.sub.3 together with the nitrogen atom to which they are bound form a saturated heterocyclic radical, Z denotes a linear or branched C.sub.1 to C.sub.6 alkylene group and X.sup.- denotes an anion, preferably a halogen ion,and is dealing with intermediates in the preparation of the compounds of formula I.

Abstract: A piezoelectric resonator including a base, two conducting posts which pass through the base and a piezoelectric plate. The plate includes a central active zone which is surrounded by a peripheral zone. The two zones are connected by at least two bridges which define slits which separate the central zone from the peripheral zone. Each face of the central zone is covered with an adherent electrode which extends over one of the bridges to a part of the peripheral zone. Each of the electrodes is connected to one of the conducting posts through a conductive metal ribbon. Each of the metal ribbons bear on the inner part of the peripheral zone so that the ribbon is disposed substantially as an extension of the corresponding posts.

Abstract: A device for changing tools, pick-ups, welding torches, and other implements that can be handled by industrial robots. It consists of an upper and lower part. In order to obtain optimal cost effectiveness a linear drive mechanism guides a hook-shaped structure in the upper part along a guide in such a way that the structure initially carries out a curved motion essentially perpendicular to the linear closing or opening motion during the closure process. The curved motion is appropriate for making the bottom of the device engage an associated implement even when the latter is stored in an imprecise position. The structure then carries out a strictly linear motion during which the upper part and lower part are exactly aligned by guides integrated into the device and by guide bevels even in the presence of counteracting forces. A motion that can be made as precise as desired can be executed to obtain a closed and mechanically prescribable final position.

Abstract: An amphibious vehicle, which can be used as a water-crossing ferry or can be assembled with other such vehicles to form a pontoon bridge, includes a hull section hinged to two ramp sections. The hull section includes two lateral inflatable floats, having a length equal to that of the hull, connected to flaps hinged to the hull, the flaps having a length slightly less than that of the hull in order to leave visibility through side portholes located near the ends of the hull. In the inflated position, these lateral flaps form a horizontal extension of the upper surface of the hull, extending over the lateral floats. Each ramp section is equipped with two lateral floats of equal length with the ramps and of equal width with the lateral hull floats. The ramp floats are connected to ramp flaps, hinged to the ramp which extend the horizontal surface of the ramp when inflated and unfolded. Each ramp section is further equipped with a central float which extends between the two lateral floats.

Abstract: A piezoelectric oscillator operating in the aperiodic or overtone mode comprising a first piezoelectric resonator having a resonance frequency at which the oscillator is to operate. One side of the first resonator is connected to ground, and the other side is connected through a second piezoelectric resonator to the base of a transistor. The second resonator has in common with the first resonator a mode at the resonance frequency, but its intrinsic quality factor is between 30 and 1000 times smaller than that of the first resonator. A capacitive divider bridge having a middle point is connected between the base of the transistor and ground. A third piezoelectric resonator having in common with said first resonator a mode at said resonance frequency, but whose intrinsic quality factor is of the same order of size as that of the second resonator, is connected between said middle point and the emitter of said transistor.

Abstract: A method and a device for regulating the heating of a thermostatically controlled enclosure of a quartz oscillator. During a first stage, the thermostatically controlled enclosure is exposed to an external temperature close to the maximum operating temperature and the frequency of the oscillator is measured. During a second stage, the thermostatically controlled enclosure is exposed to an external temperature close to the minimum temperature of the range and the difference between the frequency of the oscillator and the frequency previously measured is cancelled out by modifying the distribution of the powers dissipated by the heating elements of the thermostatically controlled enclosure. The heating of the enclosure is performed by a chain of voltage stabilizer semiconductor circuits connected in series, each of the circuits being traversed by a regulated heating current. The regulating of the heating action is performed by modifying the stabilized voltages of the circuits.

Abstract: A device having the function of compensating for the acceleration sensitivity of an oscillator of given nominal frequency comprises an acceleration-sensing element such as a filter which is capable of producing a signal having a nominal frequency equal to that of the oscillator to be compensated but, in respect of its nominal frequency, has higher sensitivity to acceleration than the oscillator to be compensated. The phase difference between the frequency of the oscillator and the frequency produced by the filter is compared in a mixer in order to extract the phase modulation induced by the acceleration. A follow-up control amplifier receives the output signal of the phase comparator and produces at its output a signal for correcting the oscillator.

Abstract: The inside of a sleeve is positioned over a nozzle having an elongated groove opening immediately at the region of the sleeve to be striped. The sleeve surrounding the nozzle is given a predetermined potential level. A stream of particles is introduced into at least one end of the groove in a direction at least generally parallel to the groove and to the region to be striped. The particles are charged relative to the potential level of the sleeve such that the particles are attracted to the sleeve. A stream of air is also introduced under pressure into the opposite end of the groove in generally the opposite direction. The countercurrent thus produced deflects the stream of powder so it projects generally radially from the nozzle groove, thickly coating the strip region at the seam. The region is the seam of the sleeve which is to be made into a three-part can, in which case the groove is longer than the sleeve.

Abstract: A device for attaching a tool in portable angled grinders, allowing the connection to be released without special accessories. The device consists essentially of a hollow driveshaft, of a spindle that slides inside it, and of a tool-securing point consisting of a mating flange and nut. The nut is loosened by activating the displacing mechanism, which displaces the spindle toward the tool-securing point, lifting the nut, which is connected to the spindle by means of a threaded pin, off of the tool. The nut can then be screwed off by hand.

Abstract: The fill slat for use in water cooling towers comprises a perforated body portion, a central longitudinal rib, and downwardly inclined side flanges. The rib is inverted v-shape in cross-section and functions as a rigidifying beam for the fill slat. The rib is open at its bottom, thereby permitting a plurality of fill slats to be nested to reduce shipping costs. The side flanges are formed with slots, certain of which are angled, to receive the supporting wires. A holding clip can be additionally provided to reduce rolling or longitudinal movement of the fill slat.