This invention describes a long-term Sampling Device 20 which can be used for measuring airborne or other fluid-borne contaminants such as asbestos. Sampling Device 20 incorporates a size selecting device based on a helical elutriator. In practice a number of such long-term sampling devices may be used in parallel to ensure that at least one sampling device generates a sample suitable for analysis...

A rock bit insert 13 made of a cermet (e.g. cemented WC) has a wear resistant coating formed by making a conformable mixture of one or more powders selected from cermets, carbides, borides, nitrides, carbonitrides and refractory metals with an applying agent (e.g. a polymer binder), conforming and applying the mixture onto a surface of the insert 13 and sintering the mixture by pressurising it at ...

Apparatus and methods for controlling the amount of data used to transmit still images during the transmission of a video sequence from a first to a second location are disclosed. The apparatus of one embodiment comprises encoding means (105) arranged for intraframe encoding still images for transmission and intraframe encoding part or all of selected video sequence frames, calculating means (106)...

A conveyer for transport of goods comprising axles mounted perpendicular to the transport direction and connected by flexible connecting elements, wheels for support of said conveyer, and rollers to support said goods, wherein at least one wheel and at least one roller is mounted on each axle.

A method of engraving pre-sintered ceramic articles involves providing a source of laser energy for forming a polyester mask having a predetermined spiral pattern etched therein. To form the polyester mask, means are provided for computationally communicating a predetermined engraving pattern to the source of laser energy. Once the polyester mask is formed, it is overlaid onto the ceramic article ...

In a process of separating a liquid sample having phase portions of different densities by centrifugal separation, a phase separator container is employed. The phase separator container comprises a housing having concentric inner and outer cylindrical walls defining a longitudinal axis and a top wall and further a piston body constituting a bottom wall of the housing. The piston body defines toget...

A valve controlled sealed lead-acid battery without maintaining includes a battery groove, a battery cover anode plate, a cathode plate and an electrolyte, which is characterized in that: a sealing layer is arranged between the battery groove mouth and the battery cover, the screw rod binding post is provided with a sealing ring passing through the battery cover. The battery cover is provided with...

A control system for a hybrid vehicle including a traction motor (3) which drives a drive shaft (2) of the vehicle by electrical energy and has a regenerative function of converting kinetic energy of the drive shaft (2) into electrical energy, a transmission (4) arranged between driving wheels (5) of the vehicle and an internal combustion engine (1) of the vehicle and the traction motor (3), and a...

A pneumatic water pump powered by wind force for water storage pond or water well is composed of sealed water storage pond or water well, ball plug to prevent air return, fan air compressor, machine lever, double-layer light-gathering vapour cylinder and manual pneumatic cylinder combination, and features that the air pressure is generated by three ways, that are air compressor, vapour cylinder an...

A belt for supporting strips of deformable material includes a flexible central band onto which one or more strips of the deformable material are placed, wherein variable-configuration spacing elements are arranged along edges of the central band. The spacing elements may be air chambers. An apparatus for using the belt, a method for feeding a strip of deformable material, and a method for storing...

High capacity spool with built-in balloon control head (1) and folding system consisting of a spool composed of a balloon control head (1), a central tube (2) and a base (3) and of a folding system adjusted to this spool in two stages, a first stage in which a support cone for the second stage is obtained. The result obtained on the spool is a format whose final appearance is that of the so-called...

A complex porous structure of a reticulated foam, felt or fabric types, wherein their metallisation over their entire developed surface, by electrolysis of lead or lead alloys, is made possible by a specific preliminary conductive activation treatment obtained by using two consecutive phases of coating the developed surface of the structures, comprising a first deposition of a conductive polymer, ...

A polyester polyol composition comprises a phthalic anhydride-initiated polyester polyol, a C4-C6 hydrocarbon blowing agent, and an alkylene oxide modified silicone glycol compatibilizing agent having an HLB of from about 5 to about 8. The blowing agent is soluble in the polyol composition, thereby reducing the risks associated with such blowing agents in processes for making rig...

Computers located in an unattended room are regularly checked for operational reliability by a monitoring system. A counter (CT) should not reach its end value and must be reset regularly to the initial count of the counter controlled by a monitoring routine (WD) interacting with an execute routine (TR). When resetting is not carried out in time, the computer is restarted or rebooted. When the com...

A method for position finding of an automated guided vehicle using detection of angle positions for anonymous reflectors (R1-R11). The anonymous reflectors are arranged in positions in a limited transport area, and the positions are stored. A concentrated beam (B) is emitted from a vehicle (10) and is made to pass over a search sector. The angle position in relation to a reference direction (D) of...

A blown foamed film of polyester resin, obtained by blow-molding a foamed tubular sheet at the outlet of a foaming extruder.

An iron-based mixed powder for use in powder metallurgy and excellent in die filling property and compressibility and without segregation, includes an iron-based powder in which alloying powder(s) is adhered to the surface by a binder and, further, a free lubricant. The iron-based powder includes a mixed iron powder of atomized iron powder and reduced iron powder.

Part of the hollow object (2), either transparent or translucent, is illuminated (8) by an incident light beam (6). The object is rotated (3), relative to the beam, around its central axis (4). The reflected light beam (7) from the object forms successive images at a regular pace. Two successive images are compared to distinguish stationary reflected beams, corresponding to parasitic variable refl...

Process for recycling polyurethane plastics by cleavage with a cpd. (I) having at least two isocyanate-reactive H atoms to form regenerated material contg. isocyanate-reactive H atoms, in which the polyurethane material and the (I) are fed together with a 2- to 20-fold amt. of the regenerate to a high speed mixing and comminution pump that generates high shear forces between rotor and stator.

Production of a half reinforcement of a tyre carcass from a single strand (23) round a bead wire (8) consists of: (a) holding the bead wire in a predetermined position; (b) positioning a ring (14) a predetermined distance from the wire and approximately coaxial, with the planes of the two being parallel, the ring having half the number of hooks (15) as the number of strand loops contained in the r...