Abstract: Apparatus useful for the malaxation of a charge such as foundry sand, a ractory or abrasive particulate-like solid, powdered marble, gravel or like building materials embodying two mixing zones to first form a pre-mix of the charge and a constituent of a binder-hardener system and then form an intimate and homogeneous mixture of the pre-mix and the other constituent of the system within a few seconds followed by immediate evacuation or emptying of the resultant mixture. At least the second mixing zone is a mixing vessel with a cylindrical or conically tapered inner wall inside of which is rotated a drive shaft with radial arms, each bearing a hammer on its outer end, the hammers orbiting in the vessel with a clearance of only a few millimeters with the inner wall to attain thin film malaxation.

Abstract: An optical instrument, for example a field-glass, in which the image-erecting system, the eyepiece tube and the objective tube are embedded in synthetic resin to form the housing of the instrument. The image-erecting system and the eyepiece and objective tubes and, if required, the hinge mechanism, are wholly or partially surrounded in cast resin to make a rigid core and this rigid core is partially or wholly enclosed in foamed synthetic resin.

Abstract: A process for solubilizing a suspension of casein in powder form in an aqueous medium, the casein suspension containing at most 270 g of casein per liter of aqueous medium, which comprises leaving the casein suspension to age for at least 10 minutes, after which a solubilizing agent is progressively added to this suspension until a homogeneous solution is obtained.Application to acid casein, the solubilizing agent being an alkaline agent. Application to phosphocalcic and rennet caseins, the solubilizing agent being a calcium-complexing agent.An apparatus for carrying out this process.

Abstract: An apparatus for wrapping strings for musical instruments in which the various parameters influencing the quality of the string are accurately controlled, the apparatus comprising an elongated track mounting an opposing pair of heads having rotatable shafts to which the opposite ends of a core wire are fastened, the shafts being rotated in unison by a pair of electronically controlled stepping motors, means being provided to tension the core wire between the heads, the wrapping wire being fed into contact with the core wire by a vertically disposed feed arm suspended from an overhead carriage traveling lengthwise of the track member, the wrapping wire being fed to the feed arm from a source of supply and, as an incident of such feeding, a predetermined tension is applied to the wrapping wire, the feed arm including means for controlling the rate at which the feed arm advances and means for controlling the angle between the wrapping wire and the core wire, the track member also mounting adjustable anvils for f

Abstract: A tray and carrier assembly which is adapted to simultaneously handle a plurality of open ended receptacles such as test tubes or the like. The tray includes a member having the underside thereof removably engaged by a support. Subtending the support in spaced relation and connected thereto is a base member. The tray member is provided with a plurality of openings in which are loosely disposed retainer elements which frictionally engage the open ends of the receptacles whereby the remainder of the receptacles depend freely from the tray member when the latter is assembled on the support. The tray member and the support are provided with complementary interfitting means which coact so as to require the tray member to assume a predetermined relative position when assembled on the support.

Abstract: In the process of forming a coating selected from nickel and cobalt-based atings on a surface of a component made of a metallic material having a total composition by weight comprising at least 50% of metal selected from the group consisting of iron, cobalt and nickel, the improvement comprising forming at least one layer of an alloy of boron with one of nickel, cobalt and nickel/cobalt on the component, after which the boron is eliminated.

Abstract: A solid state relay structure for use with different alternating current motors having a range of full load current and service factor ratings. The relay includes a rectangular housing and bores extending through the housing through which conductors to the motor are passed. The rear end of the housing is spaced from the panel on which the relay is mounted so the conductors may be looped through the bores when portions of the looped conductors are passed in the space between the rear end of the relay and the panel. The solid state components of the relay are encapsulated in the interior of the housing and are connected to switches, terminals, and a light emitting diode located at the front of the housing so the relay may be easily programmed for use with motors having different ratings. The terminals and operating and test instructions, located at the front end of the relay, provide a convenient arrangement for wiring the relay in its control circuit and information to program the relay.

Abstract: Shunt means supply a diode bridge with an alternating current proportional to the AC to be measured. The bridge has at least two electroluminescent diodes which emit two alternating streams of half-wave light pulses which are supplied to two fibre optic systems. These convey the light signals to a safe distance from the high tension line where two light receptors receive the respective streams of half-wave light pulses and apply electrical signals proportional thereto to opposite inputs of a differential amplifier. The output of the amplifier is a readily measurable AC. Balancing means may be provided to compensate for any difference in the overall transmission paths for the two half-wave pulse streams. A resistive load may be provided adjacent the line to sink the current flowing through the diode bridge.

Abstract: The invention relates to a spark-gap discharger triggered in a gas. The triggering discharge takes place on the edge of a thin dielectric sheet between two thin metal layers adhering to opposite surfaces of the dielectric sheet. Application to the reduction of the manufacturing cost and to the increase in triggering precision in terms of time of a spark-gap discharger.

Abstract: The present invention is concerned with a pharmaceutical delivery device comprising a biologically acceptable silicone polymer matrix having microsealed compartments of 10-200 microns throughout, wherein the microsealed compartments contain a pharmaceutical in a hydrophilic solvent system. The biologically acceptable silicone polymer matrix is formed by in situ cross linking of a liquid, biologically acceptable silicone polymer in an emulsion of pharmaceutical in the hydrophilic solvent system and liquid biologically acceptable silicone polymer. The biologically acceptable silicone polymer matrix is placed in a sealed or unsealed biologically acceptable polymer container.

Abstract: Contacting of appropriately substituted nitrosobenzene with diphenylcyclopropenone under reflux conditions yields novel 2-aryl-3,4-diphenylisoxazolin-5-ones, which are useful as pharmacological agents in view of their serum triglyceride and cholesterol lowering properties.

Abstract: Device for guiding a drilling string from a floating drilling rig comprises a flexible guide tube having an inner diameter which is constant and an outer diameter which decreases progressively from its median zone toward each end, the median zone being connected by swivel means to lateral and longitudinal members connected to the floating drilling rig.This device is especially adapted for floating drilling rigs having a well through which the string descends.

Abstract: Combustion chamber comprising a first combustion zone opening into a wider second combustion zone into which the combustion air is admitted through a practically frontal air entry comprising obstacles which impart a coefficient of blocking of about 60% to 80% to it. The first zone is supplied with air and fuel in substantially stoichiometric proportion in idling. At the other running rates, a supplementary fuel flow is injected into the chamber and burns in the second zone in the wake of the obstacles.

Abstract: The present invention relates to a method of and apparatus for indicating e geographical position of a piloted vehicle equipped with a computer, the method comprising the steps of using a geographical map or a portion of map, approximately orientated, without regard to its method of folding and its dimensions; identifying and transmitting to the computer at any desired moment, basic information such as reference of alignment on a meridian of the map-references of magnetic declination and scale of said map, co-ordinates of at least one radio-navigation transmitter chosen on the map, co-ordinates of at least one objective to be reached on the map, co-ordinates of at least one possible intermediate point on the route; indicating on said map at any instant under the control of the computer which also receives the variable radio-navigation information from the transmitter selected, the geographical position of the vehicle, the above identification and indication steps being effected by the use of a single organiza

Abstract: A braking correction device comprising two correcting valves of which the inlets are separately connectible to two independent braking pressure sources and the outlets to two independent sets of brake actuators, each valve being capable of controlling the pressures at its inlet and outlet in accordance with a predetermined relationship and comprising a piston subject to resilient return spring. The correction device comprises force distributing member situated between the resilient return spring and the pistons of the correcting valves, the distributing member comprising a block of elastomeric material enclosed in a rigid shell comprising a cylindrical cavity in whose bottom the force distributing block is fitted, the cavity comprising a cylindrical edge slidable receiving an assembly comprising two projections contacting the block and co-operating with the pistons of the valves. The braking correction device is intended for a dual vehicle hydraulic brake system.

Abstract: The invention concerns pumping apparatus for wells, such as oil wells, coising a framework constituted by a tubular mast, a driving plant, a linkage connectable to a force pump immersed in the well, a flexible connection between the said plant and the said linkage for transmitting and imparting a reciprocating lifting and lowering movement to the rod linkage to actuate the force pump, the tubular mast including, for the connection to the rod linkage, guide pulleys with horizontal axes of rotation, and a lockable arm for carrying the guide pulleys and mounted for pivoting on the tubular mast about a vertical axis.

Abstract: A three way cock for filter press plates comprising a cock body defining a cylinder portion, a foot portion extending parallel to the cylinder portion, for applying the cock to the side of the plate, and a flange portion connecting the cylinder portion and foot portion through which extend a pair of fluent passages that connect the bore of the cylinder portion, and upper and lower ports formed in the cock cylinder portion with correspondingly located fluent passages of the plate. The cock cylinder portion has reciprocably mounted in same a spool valve member that shifts longitudinally of the cylinder portion under the action of opposed cam surfaces formed in the cylinder portion, and an end cap received over the upper end of the cylinder portion through which the valve member extends for keying connection to an operating knob for turning the valve member to move it between the three operating positions of the cock.

Abstract: A battery of series-connected storage cells is checked by:Measuring the transient elementary open-circuit voltage at the terminals of each storage cell;Comparing the said elementary voltages with the average transient voltage of the said storage cells (i.e. with the total transient open-circuit voltage divided by the number of storage cells). The battery is rejected if the difference between the said average transient voltage and one of the said elementary transient voltage becomes greater than a predetermined threshold.BACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to a method and a device for checking a storage battery, more particularly a lead acid storage battery, charged and filled with electrolyte, this checking being effected in principle when the battery comes off the production line.2.

Abstract: Two scanning systems are described to X-ray sections of a body and obtain a plurality of radiographic projections suitable for reconstruction as models of the body. The transmitted X-rays are recorded in any convenient form to produce data proportional to their intensities, and the data are converted to logarithmic form, stored and processed by a computer according to a predetermined set of original algorithms. The computer calculates a two-dimensional matrix from any set of linear arrays of data which represent the projection values of a body section. Such a matrix represents an estimate or approximation of the two dimensional distribution of the absorption or transmission coefficients of the X-rayed body section. The computer outputs are used to display pictures of the X-rayed body sections in any convenient visual or numerical form.

Abstract: An improved plenum type air distribution system adapted to be mounted in a head protective helmet or hood for distributing respiratation air to the interior of the helmet or hood is described which includes a combination air diffusion and noise attenuation means comprising a porous bladder or air sack connected to an air supply tube. Various materials suitable for use in making the air diffusing and noise attenuating air sack are disclosed and a preferred embodiment of the air sack is described.