PURPOSE:To reduce the frictional force in the drawing-out or drawing-in operation of an optical fiber cable by interposing small-diameter spherical bodies between the optical fiber cable and the inner peripheral surface of a protection cylinder when the optical fiber cable is run by traction in the hollow part of the protection cylinder. CONSTITUTION:An end part of a compound aerial earth-wire 1 i...

An apparatus and method for tempering glass is described. Glass sheets are passed through a tempering furnace along a predetermined generally horizontal path. The temperature of the sheets is measured by a pivoting pyrometer above the sheets and the furnace is regulated to achieve a zero temperature profile across the plates.

PURPOSE:To loosen the stress acting on the supporting frame attended with the thermal expansion of the coils, and to prevent the deformation of the coils by means of arranging supporting frames of a poloidal coil equal to the circle circumferent direction, and of branching the outer circumferent side. CONSTITUTION:Supporting frames 7 which support a poloidal coil 3 winding up a vacuum vessel 1 are...

PURPOSE:To poovide a reactor control device which is mounted in the core to control reactor reactivity by reducing the fluid vibration of control rod caused by coolant and improving the control characteristics without the degradation of scram characteristics.

PURPOSE:To provide a reactor container which is safe even on occurrence of leakage of liquid metal by covering the upper face of the container with a layer of an inert gas which is heavier than the gas atmosphere inside the container.

A non-woven material and a method for making it, for use as a backing for a semipermeable membrane which comprises binding fibres, the distribution of which corresponds to that of a wet-laid non-woven material, the binding fibres being fused and flattened, without restriction of the porosity of the material in the surface region of the material.

A nonwoven fabric having a smooth surface, especially for use as support material for semipermeable membranes, comprising a support mat into which at least one surface thereof, an open-structured, continuous covering layer of fine, thermoplastic particles is calendered.

A membrane in the form of a flat film, tubular film or hollow filament of synthetic polymers which has from 10 to 90%, by volume, of intercommunicating pores and a smooth surface comprising open pores, the proportion of openings in the surface amounting to from 10 to 90%, is produced by a process which comprises extruding a homogeneous mixture of at least two components, one component being a fusi...

A knife apparatus having a knife handle of a substantially C-shaped cross-section defining a groove extending in a longitudinal direction of the handle, a slider slidably received by the groove of the handle and an elongated cutting blade secured to the slider so as to be extended and retracted as the slider is slided along the length of the groove. The knife handle is provided with a series of no...

A device for turning sheets (15) in a folding machine includes first and second twisted endless belts (2, 3) guided around the diagonally opposed rollers of respective pairs of rollers (5, 6). A sheet gripped between the belts at one end is carried by them and is turned. Guide rails (7), which are arranged in the notional turning plane, maintain the stability of the sheet being turned.

The printing device comprises a printing head having a row of printing elements, e.g. 18 wires 31 actuated by corresponding electro-magnets for printing symbols and characters in conformity with dot matrices. The inclination of the row relative to the direction of movement of the printing is variable. With the row vertically aligned, the height 1 of the 18 wires is equal to that (h + b + h) of the...

Dans ce dispositif comportant un dispositif d'entrainement d'une bande jusqu'à un dispositif de soudage formé de machoires, un dispositif de commande comportant un disque d'entrainement avec un bouton excentrique, un segment denté une barre d'accouplement entre le segment et le disque et un bras oscillant auquel est raccordée la barre, le bras est relié au segment denté et comporte une broche de r...