An electromagnetic actuator comprises a pair of relatively movable members which are made of magnetic material and which face each other, and a plurality of concentric coils provided in one of the members. In each of coils, the direction of an electric current supply is opposite to that of adjacent coils, wherein at least one radiatly extending slit is formed in the other member and has a periphe...

A scintillation camera system comprising, a detector, a detector-supporting device, and a support mechanism supporting the device. The support mechanism has first and second pivots set apart at a predetermined distance. The detector is designed to detect the radiation emitted from a patient. The detector-supporting device supports the detector rotatably and can prohibit the detector from rotating....

PURPOSE:To automatically center a bead when the bead is placed on a bead setter by providing a bead setting reference finger which can be contained at an interval with a pair of circular-arc-shaped rings as a center, and holding the bead by a magnet. CONSTITUTION:Bead setting rings 1a, 1b, 1c, 1d are disposed near by pneumatic cylinders 17a, 17b. A bead (a) is engaged with a bead setting finger 18...

PURPOSE:To enable a stable operation of an engine to be continued by fixing the output of alcohol to a set value after the abnormality of an alcohol sensor has been judged, and also controlling the ignition timing and the correction of mixture ratio by dividing them into two cases, that is, when the feedback control of air-fuel ratio is possible, and when it is impossible. CONSTITUTION:In a device...

PURPOSE:To reduce the shock at the time of speed change by controlling either one of ignition timing, fuel injection quantity, and throttle opening in parallel with the speed change operation of an automatic speed changer gear so that the indicated mean effective pressure can attain to its target value. CONSTITUTION:During the operation of an engine, respective output signals from a combustion cha...

In a metallic mold, all or a part of the annular portion for molding at least the tread of the tire is formed by a plurality of small separate pieces (10, 11, 12) that can be combined to form said annular portion. Between these small pieces, during the molding of the tire, clearances are maintained so as to permit the passage of air but not the passage of rubber. The above clearances are connected...

A dental floss holder is in the form of a box (20) with a drawer (22) in it. The bottom of the drawer includes a hub (38) which is spring biased to push a bobbin (24) mounted thereon toward an opposite side of the box. The bias is such that the bobbin drags with a predetermined force on an opposite side of the box to maintain tension in the floss. A result is that the bobbin does not unwind while ...

An apparatus for partial dehydration of a sludge in the centrifugal field of a centrifuge wherein the residual moisture of the sludge is substantially reduced with a comparatively low compression of the sludge, and the non-effective cone length of the centrifuge is reduced without shortening the sludge dwell time. The invention includes an arrangement of agitator elements within the centrifugal dr...

An apparatus for controlling the running of a trackless moving body. The apparatus includes a control device which comprises an adder receiving outputs from two position deviation sensors mounted on the moving body, a subtractor circuit receiving outputs from the two position deviation sensors, a first comparator receiving the output from the adder for comparing the same with a first reference val...

The invention relates to a device for counting the number of times that the blades of mechanical razors (whether they are disposable razors or not) have been used. It consists in using a ring sliding on the handle. The latter includes graduations numbered from 0 to 5. The graduation 0 indicates the razor in the new state. Other variants to this device are provided. One consists in replacing the sl...

Trajectory-drift detector comprising two transmitter-receiver sets. The two receivers 2 are connected, after processing of the received signals, to a discriminator 24 which cancels the operation of the alarms 10, 11 when two signals are received simultaneously or within a short time interval. Application: indicating the crossing of traffic lines. ;

Détecteur de dérive de trajectoire, com...

A method to make a silicone foam. A layer of crystalline material is embedded in a layer of uncured silicone. The crystalline material is closely packed in crystal-to-crystal contact, the crystals being provided in a plurality of sizes or ranges of size to increase the packing ratio of the crystals as a group. The silicone is cured and then the crystals are dissolved out with a solvent that dissol...

A method to make a silicone foam. A layer of crystalline material is embedded in a layer of uncured silicone. The crystalline material is closely packed in crystal-to-crystal contact, the crystals being provided in a plurality of sizes or ranges of size to increase the packing ratio of the crystals as a group. The silicone is cured and then the crystals are dissolved out with a solvent that dissol...

PURPOSE: To allocate the resource by generating a gradient-direction vector and a critical value vector related to the resource allocation in each repetition until stop conditions are met and making a new next repetition along a gradient vector. CONSTITUTION: The resource allocation is represented as a linear equation and the cost is represented as a specific convex function. Each repetition has a...

PURPOSE:To obtain a superconductor having improved critical temperature, chemical stability and critical current density by forming a superconductor with a laminar perovskite of multiple oxides containing two or more kinds of A-site ions having considerably different ion radii. CONSTITUTION:The oxide superconducting substance is a perovskite-like compound expressed by the general formula A-A'-B-B'...

PURPOSE:To improve the strength and workability of a superconducting substance by adding impurity Zr and Ce acting as reinforcing materials to a Y- based superconducting substance. CONSTITUTION:The objective oxide superconducting material is produced by adding Zr or Ce to an oxide superconducting material expressed by the general formula AB2C3O7-x wherein A is lanthanoid element excluding Y and Ce...

PURPOSE:To obtain a dense and flat thin film of oxide superconductor of high transition point by forming a thin film of specific oxide superconductor on a single crystal base coated with an epitaxially grown metal, semiconductor or insulator. CONSTITUTION:A single crystal base 11 is coated with epitaxially grown metal, semiconductor or insulator to form a buffer layer 13. Then, Y or a lanthanoid a...

In this device for pouring a jet of liquid metal from a container 1 by means of a composite spout including an inner calibrated tube 3 held in a suspensary sleeve tube 2, the spout is surrounded by inductive means 11, 12 and the suspensary sleeve tube 2 is produced from a refractory material permitting its magnetic coupling or that of the liquid metal with the inductive means 11, 12. The suspensar...

This invention consists in the manufacture of insulating panels in cork + cement + resin of sizes and thicknesses as required as insulation connected to any supports onto which these insulating panels can be bolted or screwed, mainly externally.

Procédé de production d'une mousse de silicone, et mousse ainsi obtenue.

On enfouit, sur une profondeur 13, une couche de matière cristalline 15 dans une couche 10 de silicone non durcie. La matière cristalline est étroitement tassée en contact cristal à cristal, les cristaux étant fournis en plusieurs dimensions ou gammes de dimensions pour augmenter le taux de garnissage des cristaux da...