摘要:
The invention concerns a method for preparing macro-porous synthetic ceramics designed in particular for bone substitution. The invention also concerns macro-porous synthetic ceramics comprising pores of controlled dimensions, distributed in number and in surface in a predetermined manner, the interconnection between the pores thereof being controlled.
摘要:
The device for fixing an object by screwing to a section having two flanges directed substantially towards one another and defining therebetween a longitudinal opening comprises an elongated plate provided with one of the threaded portions and rotatable in a plane substantially parallel to that of the flanges of the section. In a free position, the longitudinal direction of the plate corresponds substantially to that of the section. In a retained position, the plate is retained under the flanges of the section and immobilized in one at least of the directions of rotation. Resilient means are provided for urging the plate towards the flanges of section in the retained position. The resilient means bear on a wedge intended to be inserted between the external face of the flanges of the section and the object to be fixed. This wedge has a passageway for a connecting rod between the plate and the other screw fixing element.
摘要:
The invention relates to a pneumatic indicator comprising a member or body and a transparent window behind which a spherical pivoting moving body can assume two distinct positions visible from the outside when the end of a lever placed in the member transmits to a cavity of the moving body, either the movements of a membrane or of a piston under pressure action or the movements resulting from a restoring spring.Such indicators are particularly used in equipment for monitoring the operation of an installation controlled by automatic pneumatic equipment or in industrial atmospheres where incandescent lamps cannot be used because of the explosion hazard.
摘要:
A device for connecting an electric conductor mounted within a housing is provided, on a first lateral face, with an opening for the introduction of the electric conductor and, on a further lateral face perpendicular to the first one, with another opening for the introduction of a tool. Said device comprises a contact member secured within the housing and means for resilient jamming of the electric conductor against the contact member. The means for resiliently jamming the conductor consist of a single member comprising a presser tongue contained in a plane making an acute angle with the plane of the contact member and a portion for transmitting the resilient force created by resilient means which bear on the face of the contact member opposite to that on which the tongue bears. The portion is contained in a plane adjacent to the contact member at right angles with the plane of the contact member and parallel to the direction of introduction of the wire.
摘要:
A ferrule for the end of an electric cable is equipped with a removable identification tag. A skirt of the ferrule has a space adapted to receive and to retain a first extremity of a removable tag. An identification zone of the central region of the tag has a profile adapted to permit the placing in position of rings in one direction and to retain the rings against removal in the reverse direction. The ferrule is advantageously used in all electrical installations wherein the identification means of the cables have to be modified and/or are composed of different numbers of characters.
摘要:
A connecting device is for pneumatic apparatus intended particularly to control the distribution of fliuds passing to receptor apparatus. The body (1) of each apparatus can be coupled to that of an identical or analogous apparatus, placed upstream or downstream, by orientatable screws (45) placed in housings opening in the region of faces (5,6) coming into contact during association (25,26). This device is applicable to all apparatus intended to constitute a group of identical apparatuses, and is applied advantageously to the construction of an assembly for the control of jacks.
摘要:
Pneumatic logic system.The logic chain is established by juxtaposition of logic modules each of them being provided with a selecting organ having at least two positions allowing to modify the circuit diagram.Advantageous system for the sequential control of machines by pneumatic way.