Abstract: The invention consists of a central tube (1) manufactured of high thermal conductivity materials in which a liquid or gas is made to pass at low temperature thus refrigerating other tubes (2) around its periphery also made of high conductivity materials which are in contact with the central tube. The system may be joined and insulated by an external tube (4) of insulating material and which forms a cold chamber (3) among the internal tube (1) and the peripherals (2) which assists the heat exchange. The number and the diameter of the peripheral tubes (2) for heat exchange is a function of the desired capacity and of the number of liquids and/or gases that it is desired to refrigerate at the same time. In order to further increase the efficiency of the system, the peripheral tubes (2) may be wound around the central tube (1), thereby increasing the total difference of the length between the tubes and the performance of the system.

Abstract: From human placental tissue, gangliosides and lacto-N-norhexaosyl ceramide of formula:Gal.beta.l.fwdarw.4GlcNAc.beta.l.fwdarw.3Gal.beta.l.fwdarw.4GlcNAc.beta.l.f wdarw.3Gal.beta.l.fwdarw.4Glc.fwdarw.(ceramide)are successively extracted.Lacto-N-norhexaosyl ceramide is used in the diagnosis and treatment of certain tumors and autoimmune diseases.

Abstract: The measuring device comprises a body (1) whose end (1a) is secured to a rod (2) connected to a measuring instrument. A probe assembly (3,4,5) is provided with a feeler head (4a) and is secured to a lever (6) which rotates around a pin (8) in the body (1). The angular path of the lever (6) is limited by a stop (12) built into the body (1) and by a stop adjustable by means of an eccentric part (11a) in such a manner that the body (1) always takes the same position in each measuring direction on alternate measuring of two opposite surfaces lying in the same plane. A spring (9) urges the lever (6) towards its upper position. By this means, the measurement of the distance between opposite surfaces requires no calculation, i.e. addition or subtraction of measuring constants, thus making measurement easier and precluding errors in calculations.

Abstract: A pouring device which is fixed into the outlet of a liquid container. The device has a main portion and bifurcated legs which conform to the internal shape of the container outlet. A vent tube provides access for air forced into the container by the low pressure zone therein created by the outflow of liquid. The area between the legs constitutes the outlet path for a continuous stream of liquid from the container. The legs are spaced apart to facilitate mounting of the device in the container outlet.

Abstract: A pallet carrying industrial loads includes on the base thereof, two parallel longitudinally extending sleeve members of which the sides are pleated whereby the sleeve may collapse in a vertical direction with the folded sides supporting the weight of the pallet. The sleeve incorporates an initial opening for entry of a fork lift whereby as the fork is moved into the sleeve the pleated sides allow progressive expansion. On removal of the forks the sleeve progressively collapses to provide reduced storage height and lessening the transport costs. The sleeve and pallet base may be constructed from fibreboard materials.

Abstract: A wheel intended to work with a fluid includes wing-shaped components (2) arranged around a central shaft (1) generally perpendicular to the direction of relative movement of the fluid (5). The wing-shaped components are articulated along pivoting axes (3) parallel to the central shaft and their orientation during the rotation around the central shaft is determined by a control mechanism (6,7,10, 11 and 16) made so that, in each angular position of the wheel, the planes (12) aligned along the pivoting axes of the wings and perpendicular to the main planes of the latter intersect approximately along the same straight line (13) located on the outside of the trajectory cylinder of the axes of the wings (4). The control mechanism has, for this purpose, an annular part (6) with an axis of rotation (8) parallel to but distinct from that of the central shaft (1) and adjustment parts (10) sliding on rods (9) mounted tangentially to annular part (6).

Abstract: A carburetor includes a pendulum metering element delivering fuel to a hollow throttle shaft from a fuel metering chamber by means of a graduated depth groove in the chamber wall which is engaged by a spring urged jet member carried by the pendulum element and offering constant fluid-tight engagement with the chamber groove with minimum frictional drag. Stability of both fuel metering/vaporization throughout variations in temperature is significantly enhanced by formation of the carburetor body from a machined block of a metal selected for its ideal combined capability of heat storage and dissipation. An improved sealing assembly between a float and fuel chamber and the metering chamber coupled with a regulator device insuring a constant fuel inlet pressure enhances this stability of operation.

Abstract: The electroacoustic transducer comprises an oscillating element (6, 7) holding a coil (8), the oscillating element (6, 7) being connected to a magnet frame (11-17) by an elastomer ring (10'). The magnet frame (11-17) has two magnets (14, 15) and constitutes an inertial mass. The oscillating element (6, 7) is intended to be attached rigidly by its base plate (6) to a panel (1) so that the sound waves are transmitted to the latter (1) which thus plays the role of a speaker diaphragm. Adjusting screws (27) make it possible to modify the characteristics of the elastomer (10') as a function of the mounting condition and the desired sound diffusion effect.

Abstract: A stapler for interconnecting adjacent penetrable bodies such as vertebrae includes a barrel with a staple support and deforming anvil at one end thereof; a plunger slidably mounted in the barrel for pressing the staple against the anvil to deform and drive the staple out of the stapler into the vertebrae; a handle and trigger at the other end of the handle for driving the plunger against the anvil and out of the stapler; a helical spring for returning the plunger to the rest position; and a control sleeve and pin arrangement for placing the plunger in the "DISMANTLE", "LOAD", "SAFE" or "FIRE" position, in which the stapler can be dismantled or assembled, loaded, inserted into position or fired.

Abstract: The detection means for the ends of a ribbon for typewriters includes a light flow conductor member 17 integral with the bottom 2 of the case for the ribbon cassette. The member 17 has two light guides between which the ribbon passes. One of the guides is disposed in a manner to induce flow of light emitted by the light source opposite light source 15 opposite the ribbon, the other is disposed in such a manner as to conduct to the detector 16 the flow of light traversing the ribbon. Thus, the placing of the ribbon is facilitated and the optical reader does not risk damage when it is put in place. Since a new light conductor member is disposed in the light flow each time the cassette is changed, the detection of the end of the ribbon is not adversely affected by harmful deposits.

Abstract: The frame of an ironing press has flexible abutments made of steel against which a support for roller tracks rests in order to assure a stable position for a lever arm of the press when the press is in an open or closed position. The flexibility of the abutments of the frame make it possible to maintain stable positions of the lever arm during the ironing of fabrics of usual thickness or fabrics of greater than usual thickness.

Abstract: A compression mold includes punch and cavity components fabricated from initially flat sheets of relatively thin metal. The sheets of each component are shaped, assembled and joined to provide box-like components defining mating mold surfaces yielding molded parts which may be straight or laterally and/or vertically curved. The hollow interior of the two components allows for the circulation therethrough of an appropriate heat transfer medium to permit molding of either thermosetting or thermoplastic compounds.

Abstract: A separator for separating gas from oil in a mixture thereof such as at an oil well head comprises one or a plurality of separator devices (13) each basically comprising a foraminous wall constituted by a sleeve (22;56) surrounding a closely fitting solid core (23) having a plurality of helical channels defining flattened flow paths bounded on a major face by the foraminous sleeve (22;56) so that gas can escape to a gas gallery (20) while the oil tends to pass along the helical channels to an oil collector (16). A secondary outer foraminous sleeve (57) may be provided to vary the effective resistance offered by the foraminous wall by relative displacement with respect to the first mentioned sleeve (56) causing variation in the overlap of the apertures in the two sleeves.

Abstract: A leg rope to secure a surf board to a surfer includes a cuff to engage around the leg of a surfer, an anchoring member to secure the leg rope to a surf board, the cuff being connected to the anchoring member by a helically coiled extensible member fixed at one end to the anchoring member and at its other end to a swivel which is connected to the cuff, and a catch on the swivel to prevent relative rotational movement between the swivel parts while the helically coiled member is under tension.

Abstract: The invention relates to a method and device that make it possible to determine interplanar distances in electron diffraction images in electron microscopes. This is done through its beam stopper, which originally was used only to interrupt the central beam for better display of the diffraction image.The invention makes possible the elimination of errors normally committed in determining said distances, many of them related to the deformation of the film and to unsuitably exposed photographs.

Abstract: A copound bow having low-rotation cams includes an improved anchor member adapted to releasably attach one end of both a bowstring and tension cable to each cam. The cams are formed with a main body or lobe joined to a secondary body or lobe and configured to provide an elongated throat therebetween with a planar cable/bowstring track or groove about the cam periphery. The opposed walls of the cam throat are configured to transversely or laterally receive the anchor member while precluding any longitudinal or radial displacement thereof as tension is applied to the cam member by the engaging ends of the bowstring and tension cable.

Abstract: An elongated spring member is formed of fiber reinforced plastics, particularly resin-impregnated glass fiber strands, and includes end provisions adjacent the two ends for the reception of attachment elements associated with the use of the spring. The spring includes parallel impregnated strands which have been wound about a rack provided with end supports following which the entire wound resinous product is placed within a mold cavity and cured to provide a spring member having integral, molded end provisions encircled by continuous, uncut reinforcing fibers with or without the inclusion of additional reinforcing material, and which is molded without the formation of any significant waste product. The improved spring member includes transversely disposed end provisions which may comprise a passageway or elongated end members encircled by the reinforced strands and the center axis thereof may be along the neutral axis of the spring body or alternatively, above or below the neutral axis.

Abstract: A sensor assembly on a crane apparatus includes a multi-pole switch such as a wobble switch mounted adjacent the head of a crane boom. The switch is carried by a pendulum arm and is activated by an actuating member engageable by the crane lift cable whenever the cable is out of plumb. Activation of any one of the switch contacts completes a specific circuit to illuminate a particular signal element in the crane cab thereby advising the operator in which of four directions the lift cable is out of plumb so the crane may be manipulated to obtain a plumb relationship prior to lifting of a load.