In a self-propelled, remotely controlled vehicle adapted to operate on the sea bottom for extracting ores therefrom, a V-shaped tubular structure has at its apexes a system of crawlers for moving the structure on the sea bottom. Underneath each side of the V-shaped structure, a scraping system is operative and its long axis is perpendicular to the corresponding side of the V-shaped structure. Tubu...

A horizontal drilling and milling machine comprises a vertically movable headstock and a spindle sleeve mounted for horizontal run-out from the headstock. Typically, an outer end of the spindle sleeve undergoes a vertical deflection relative to the headstock during run-out, which deflection is an exponential function of the extent of the run-out. A correcting means is connected to the headstock to...

A modified hydraulic cement product comprises a hydraulic calcium silicate-based cement having a Blain surface area of at least 3,000 cm2/g, and/or an iron content of less than 2.5% by weight expressed in terms of the ferric oxide content of the dry cement, in which the cement has been treated with an additive comprising an aldehyde or an amide or substance convertible to an aldehyde or amide unde...

1. Balancing device for a machining head moving horizontally along the whole length of a fixed cross-piece integral with a movable vertical pole of a machine tool and comprising a supporting means on which a movable counterpoise moves, characterized in that the cross-piece (4) and the supporting means (4, 14) are fixed on the same side of a vertical pole (3) said supporting means (4, 14) being fix...

PURPOSE:To obtain the highly reliable nonvolatile semiconductor memory storage on which a long memory holding period and a sufficient rewriting number can be obtained by a method wherein an FET having a floating gate and another FET having a gate insulating film consisting of at least an Si3N4 layer and an SiO2 layer are provided. CONSTITUTION:An FAMOS.FET and an MNOS.FET are provided in a memory ...

Disclosed are novel prosthesis parts of improved properties which are obtained by providing a material as used for prosthesis with an enamel or enamel-like coating and incorporating in said enamel layer, while in a viscous state, a bio-active material. Such prosthesis parts have a satisfactory adhesive strength and coefficient of expansion, are substantially free of pores, are highly corrosion res...

A system for fluid jet heads such as ink jet adapted for self-cleaning of certain clogs and purging of air from the head. The head includes a manifold communicating with at least one orifice to project a stream of fluid therefrom. Two fluid supply paths at different sides of the manifold supply pressurized fluid thereto. One of the supply paths is located at the top of the manifold and is reversib...

Vortex apparatus for the continuous production of a precipitate by reacting together at least two reactants wherein it comprises a rotary bowl, having a vertical axis a fixed cylinder arranged coaxially within the bowl in order to define with the latter an annular raising chamber, thus providing a fluid flow connection with a reaction chamber defined within the fixed cylinder, reactant inlet pipes...

1. A heat exchanger with fluidized bed firing comprising a sub-floor (36, 36') disposed between an air chamber (50) and a fluidized bed (54), said sub-floor being formed with air passage apertures, heat-exchanger heating surfaces (57) being disposed above the sub-floor (36, 36') and in the fluidized bed (54), characterized in that the sub-floor (36, 36') is lowerable and provided with lowering mea...

Method and apparatus for non-contact application of information patterns of variable size and format on a plurality of discrete moving objects 12 carried linearly on a conveyor 14. The objects move, horizontally spaced apart, past at least one print head 16 having plural ink sources arranged vertically relative to the moving objects. An information pattern is provided to control means 20. The lead...

A method and an apparatus are disclosed for vacuum or gauge pressure shaping of extensible sheet material in a mold, more particularly pre-shaping of a textile or plastic sheet or film used as an integral skin for a foam cushion, to effect uniform stretch of the sheet throughout its area notwithstanding substantial depth variation in surface contour of the final shaped sheet material.

1. A handtruck having an essentially rectangular frame (10) from the bottom end of which a loading platform (12) sticks out and which carries wheels (14) and a travelling mechanism (17) for negotiating stairs and which at the top end exhibits two grips (30) arranged at a distance apart laterally and offset from the direction longitudinal to the loading platform (12), characterized in that to the t...

1. Apparatus for mixing and spraying a mixture consisting of at least two components, for example liquids, and a propellent gas, comprising two containers (1, 7) arranged one within the other for receiving the components to be mixed and the propellent gas, and a discharge valve (2) arranged on the outer container (1) for acting by way of an actuating element (12) on a parting zone (10) of the inne...

Compositions for cleaning and deodorizing carpets comprising hydrated sodium borate, hydrated metal aluminosilicate and perfume. Cationic quaternary ammonium salts are preferred optional components.

PURPOSE:To improve adhesive strength between a lead frame and a resin and wetproofing by forming a stepped section on the bed side between both regions of the lead frame with a bed region for a pellet and a radiator plate region, sealing the whole periphery of the stepped section with the resin and exposing only the radiator plate region to the outside. CONSTITUTION:A stepped section 24 is formed ...

PURPOSE:To attain the supervision of a line by means of parity check by transmitting information of a parity check in response to a polarity pulse of an inserted frame pulse. CONSTITUTION:A parity operating circuit 11 at the transmision side operates the parity check bit from a multiplex signal inputted to a terminal 9, changes 12 the polarity of the frame pulse as the result of calculation and tr...