An electromagnet, for valves, comprises thin-walled axially symmetrical parts and is adapted to different uses by special air gap arrangements and armature suspensions; the electromagnet generates high magnet forces at low armature mass and is employable, in particular, for actuation of fuel injection valves for internal combustion engines and in general hydraulics; the electromagnet possesses a h...

A hammer crusher, to which there belong a rotating rotor (2) and one or more hammers (4) fitted on the rotor to be rotatable about an axis (5 or 9) parallel to the rotation axis of the rotor. A recess, radial with respect to the rotor, is provided in the rotor of each hammer, so that the hammer can rotate 360 degrees about its own axis. In each hammer (4), the recess extends in the direction of th...

A radiographic apparatus contains at least one source and at least one detector bank mounted on respective concentric annular rings; the patient's body being disposed inside the smaller ring. The rings are rotated in opposite directions and at such respective angular velocities that the effect of a lateral sweep of the detectors and source across the body is achieved with purely rotational movemen...

A continuous flow device for separation of particles of differing densities in a centrifugal force field. Very small particles of differing densities that are normally very difficult or impossible to separate in the useful commercial gravity separation devices can be separated because of the increased settling force due to the centrifugal force field and also the buoyant force on the particles of ...

A rotary electrode apparatus for producing metal powders including a chamber for maintaining a controlled atmosphere. A first electrode is mounted in the chamber and a second consumable disc electrode is mounted in the chamber confronting the first electrode. An electric arc is struck between the first electrode and a circumferential portion of the disc electrode in order to melt the circumferenti...

PURPOSE:To obtain a molding machine capable of being made smaller and simplified and also of avoiding the deterioration of the quality of bead wires by a method in which a wire base material is held without causing advancement when being charged into a molding drum. CONSTITUTION:A bead wire base material W is wound around a feeding roller 12, bent by a bending roller 17 and a guide roller 19, inse...

PURPOSE:To obtain a bead wire aligning feeder having exact operability and simple constitution at low cost by using a system in which head wires are held under the condition that they are hung down in parallel in such a way as to position their centers on the same straight line. CONSTITUTION:Arms 18a and 18b to hold bead wies W sent out in order under the condition that they are hung down in paral...

The invention relates to a process and apparatus for producing a colored band in an extruded thermoplastic sheet. In the process, a probe is inserted in a sheet extrusion die manifold and a colored melt is injected into the polymer melt such that a sheet with an encapsulated colored band is obtained.

In the optical head, laser beams are converged by the objective lens and projected on the light-receiving surface of the optical disk. The diverged laser beam is reflected by the light-receiving surface, converged by the objective lens into parallel laser beams, and directed to the light shielding plate. Only the laser beam passing through the region spaced from the optical axis is picked up by th...

A process for the production of a mixture of a polymer and a fibrous material, which comprises agitating an aqueous solution of a coagulant for the polymer; adding an aqueous suspension of the fibrous material to the coagulant solution; adding the polymer, in aqueous latex form, to the coagulant solution; co-coagulating the polymer and the fibrous material; and recovering and drying the mixture of...

A process for the production of a mixture of a polymer and a fibrous material, which comprises agitating an aqueous solution of a coagulant for the polymer; adding an aqueous suspension of the fibrous material to the coagulant solution; adding the polymer, in aqueous latex form, to the coagulant solution; co-coagulating the polymer and the fibrous material; and recovering and drying the mixture of...

PURPOSE:To prevent the deterioration of a marine structure by providing a peelable and water-soluble protective film on the surface of the marine structure, e.g., oil fence, etc., by coating it with an antifouling paint containing an inhibitor to the adherence of marine organisms to the surface of the marine structure. CONSTITUTION:An antifouling paint containing an inhibitor (e.g., copper suboxid...

An injection site may be made of a disc of puncture-resealable rubber in which the periphery carries a coating of thermoplastic material which is bonded to a sealingly compatible surface to retain the injection site in position. The injection site may be made by coating a rod of puncture-resealable rubber with a plastic material, followed by transversely slicing the coated rod into discs, which ma...

PURPOSE:To obtain molds capable of effectively and exactly removing the bent hole dust without any help of hand by providing a bent hole dust remover reciprocally moving while sliding on the peripheral side of the bent hole of the upper cover in an interlocking manner with the move of a clamp. CONSTITUTION:The base 13 of a dust remover 12 is attached to the upside of a clamp 5, and each blade 14 i...

PURPOSE:To make it possible to form a molded body free from defect, by interposing between a force surface and a sheet a fabric or unwoven fabric having a strength to withstand the shearing stress when compression is effected. CONSTITUTION:When a molded body having different thicknesses at different parts is to be produced, a compression molding under heating should be adopted using top and bottom...

An artificial tooth with an implantable root adapted to permanently grow together with the jawbone and, also under high mechanical loads as is the case for natural teeth, will not allow for the production of a rejection or repelling reaction between the natural bone and the implant. The tooth root is essentially constituted of a biostable polymer matrix which is compatible with human tissue, in wh...

A time lapse video tape recorder has rotary magnetic transducers connected to receive video signals during selected, spaced intervals and record them on a magnetic medium. In succeeding intervals switching means connects the transducers to a playback and alarm system to produce a warning if the signal as reproduced is defective in a predetermined manner, thereby indicating possible malfunctioning ...

Method for flocculating microscopic particles in suspension in a liquid and application to the collection of phytoplankton microalgae and of zooplankton and for the purification of used water. One passes a first liquid comprising microscopic particles in suspension through a fixed granular layer (2) up to partial or complete clogging of said granular material by said microscopic particles; one unc...

A rock drilling apparatus has a noise reducing drill rod cover which comprises a pair of elongated strips, each of which, when in an extended condition in the longitudinal direction thereof, form part-cylindrical members which matingly engage the other strip to form a generally cylindrical cover around the drill rod. Spool means is provided, preferably in the area of the centralizer, to selectivel...