Bolt for embedding in fibre-reinforced composite material (for example fibreglass-reinforced polyester) for attaching and receiving fatigue-generating changing loads. For example, for fastening rotor blades on windmills. The bolt is of cylindrical shape with positive slip on the entire glued surface, and the attachment for drive is received only on adhesive bonding. The bolt is sharpened by an inc...

An improvement for the structure of a quench ring and dip tube combination. It is applicable to an assembly of those elements on a gasification generator at the outlet thereof. It has a hollow perforated standpipe (48) that will bleed off any accumulation of gas above the cooling water in the quench ring.

A constant temperature hygrometer comprising a piezoelectric substrate supporting a temperature coefficient resistor on one face and a conducting electrode on the opposite face, one or both conductor faces partially or completely covered by a hygroscopic layer of aluminum oxide anodized from aluminum metal deposited on one or both conductor faces, operated by a feedback controlled constant tempera...

Process comprises contacting catalytic substrate with a soln. of pH 11-14 contg. a gold complex, pref. potassium gold cyanide, a copper complex, pref. using an ethylene diamine tetra-acetic acid tetra sodium salt as the complexing agent, formaldehyde or a formaldehyde producing compound and an alkali metal hydroxide, where the gold complex has a complexing constant 100,000 times that of the copper...

A photovoltaic array module incorporating a plurality of photovoltaic cell strips (11). Each cell strip (11) incorporates an electrically conductive substrate layer (22), a semiconductor body (23) deposited on the substrate layer (22), and a transparent electrically conductive layer (24) deposited on the semiconductor body (23). Electrically conductive filaments (20) are alternately connected to c...

The reaction vessel is provided with a partition to separate a sub-chamber from the reaction chamber of the vessel. The sub-chamber also contains lamellar flowbacks for the separation of liquid and biomass. Clean liquid is collected in troughs at the top end inside of the flowbacks and is transported via a circular trough to a discharge spigot. Biomass is discharged via sludge pockets which open d...

The valve piston (4) is connected to a regulating mechanism (6) via a union (5). A number of permanently open passages (10) extend through the piston, through which fluid can freely pass between receiving chambers (11) on either side of the piston. - The piston closes a fluid outlet aperture (8) when in a specific position (I) between the chambers (11).