A vapor recovery system for use during filling of a tank installation with a volatile liquid. The tank has a fill-pipe for the introduction of the liquid into the tank wherein the exit to which fill-pipe is normally below the liquid level in the tank. The vapor recovery system includes a reduced cross-sectional area region of the fill-pipe and a duct extending from that region through the side wall of the fill-pipe into the ullage space above the liquid level in the tank. The system further has ...

A method of leakage testing a volatile liquid tank farm together with a vapour recovery system, to collect vapour from the tanks at the time of re-filling them with volatile liquid. The tank farm has individual fill-pipes (13) for each tank (10) with each fill-pipe outlet below the normal minimum liquid level in the tank and each tank having a vent-pipe (11) connected to a common manifold (25). To perform the test, the common manifold is closed to atmosphere and one side of a shut-off valve (17)...

Apparatus for the filling of a tank with a volatile liquid includes a delivery pipe having a pair of tubular distribution members hinged to the lower end thereof. The distribution members may hinge between an insertion position where they lie parallel to the axis of the delivery pipe and a deployed position where the members are co-axial but extending normally to the axis of the delivery pipe. When in their insertion position, the distribution members as well as the delivery pipe may be passed t...

A method of and apparatus for filling a volatile liquid into at least one tank (10) of a multi-tank installation having a vent-pipe (11A, 11B . . . 11F) associated with each tank, all of the vent-pipes being connected to a common vent manifold (13) through respective over-pressure valves (12A, 12B . . . 12F). A vapor extraction manifold (16) is also connected to each over-pressure valve (12A, 12B . . . 12F) and during a tank filling operation is coupled to a vapor extraction mechanism. Both the ...

A rotary stepped storage and display unit is placed on shelves in cabinets and other locations above eye level to store and display items such as spice jars etc. on a stepped surface so that items can be seen easily from below. Preferably, the device comprises a circular stepped pyramid on a rotary base. The device is provided in separate sections which are small enough to pass through the access opening to corner cupboards in kitchens or similar places where the access openings are considerably...

A rotary stepped storage and display unit is placed on shelves in cabinets and other locations above eye level to store and display items such as spice jars etc. on a stepped surface so that items can be seen easily from below. Preferably, the device comprises a circular stepped pyramid on a rotary base. The device is provided in separate sections which are small enough to pass through the access opening to corner cupboards in kitchens or similar places where the access openings are considerably...

The can opener is a side-cutting opener with handle levers which pivot vertically towards and away from one another. A rotary cutter wheel is normally retracted to a position inside one of said handle levers, but is thrust outwardly to cut into the rim of the can when the handle levers are squeezed together. A drive wheel engages the rim and is rotated by means of a rotary drive handle to cut the top off the can. Spreading the handle levers apart causes the cutting wheel to retract at the end of...

A gyroscope mounting structure for use in a spacecraft attitude control system has ten control moment gyroscopes. The structure has a truss for supporting the gyroscopes. The truss has an axis of symmetry. Five front gyroscopes are axially spaced from five rear gyroscopes along the axis of symmetry. The front gyroscopes and the rear gyroscopes are peripherally spaced about the axis of symmetry at equal angular spacings. Each gyroscope has a gimbal axis which is disposed at substantially the same...

A display pointer is driven back and forth along a predetermined path by a geared-down miniature d.c. servomotor in accordance with a command signal. The path is determined by an elongated printed circuit board base having closely adjacent, elongated, coextensive triangularly shaped plates thereon, constituting stationary capacitor plates of a pair of variable capacitors. The printed circuit board includes a dielectric material which also overlays the triangular plates. A relatively narrow, elec...

A clip mechanism for a line utilizing a first member having a first portion and a connected second portion. A second member with first and second portions connected to one another is also employed. The second member also possesses an end portion terminating in a plurality of protrusions. Each of the protrusions possesses a tip. The tips extend from the second member at different lengths such that at least, one tip lies closer to the first portion of the second member than another tip. In certain...