The British Petroleum Company, P.l.c.

Denis H Desty

Michael G Webb

Roger Duckworth

Leslie Bretherick

Flare for disposal of combustible gases which includes a Coanda nozzle using high pressure steam. The nozzle has a self adjusting slot and a low pressure fuel gas supply is entrained into the mouth of the nozzle.

Flare with inwardly directed Coanda nozzle

An inflatable barrier for oil spilt on water consists of an air chamber and a water chamber which when inflated give a figure-of-eight cross-section, and in order to facilitate laying there is a pilot air tube attached to the air chamber preferably 1/500 the cross-sectional area of the air chamber. The pilot air tube is quickly inflated and prevents sinking or twisting of the barrier prior to inflation of the air and water chambers.

Barrier for oil spilt on water

Method of wave calming in which a plate rigid in the direction of wave travel is suspended in the water to be calmed. The plate has a length of one half of the incident water wavelength in the wave direction and is suspended to a still water depth of 1/5 to 1/40 of the plate beam.

Breakwater

A Coanda unit has a Coanda surface and a gas supply line terminating in a slot adjacent to the Coanda surface. One side of the slot is contiguous with the Coanda surface and the other side is formed of a tongue of resilient material which flexes within defined limits in response to the pressure of the gas supply so as to vary the slot width.

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Weybridge, United Kingdom

Denis H Desty