Abstract: R.sup.1 is hydrogen, (1-6C)alkyl, or (1-4C)alkanoyl;R.sup.2 (when not as hereinbelow defined together with X) is (1-6C)alkyl substituted by a group of formula R.sup.10 Xb(CO).sub.m in which m is 0 or 1, provided that when m is 0, X and Xb are separated by at least two carbon atoms, Xb is an imino group of formula --NRb in which Rb together with R.sup.10 and the adjacent nitrogen atom forms a morpholino, thiomorpholino, piperidino or azetidino ring;and X is oxy, thio, sulphinyl, sulphonyl or an imino group of formula --NRa-- in which Ra is hydrogen, (1-6C)alkyl or together with R2 and the adjacent nitrogen atom forms a morpholino, thiomorpholino, piperidino or azetidino ring; andA is N or CT in which T is hydrogen or (1-4C)alkyl;or a pharmaceutically acceptable salt thereof; processes for the manufacture of the compounds and pharmaceutical compositions containing them. The compounds are useful as adenosine antagonists.

Abstract: The disclosure goes beyond prior art that shows G-level sensors which merely actuate warning bells, etc., in that the display is of the number of excesses of G-level per unit time. According to the invention, the rate at which a person exceeds a pre-set limit of G-level is a measure of the violence of his driving. Besides this novel form of display or presentation, a novel G-level sensor is disclosed. The sensor comprises a short length of polyethylene tubing, sealed with polyethylene plugs and containing a blob of mercury. The tube is bent over a saddle to provide a central curved portion and two straight arms. Wires are pushed through the walls of the tube near the ends of the arms, to act as electrical contacts. The disposition of the sensor is such as to virtually ensure freedom from spurious signals due to sloshing of the mercury, by using the mercury's own surface tension.

Abstract: A golf ball driving device is disclosed, being a device which is mounted on wheels for easy maneuverability, and having generally an operating and transport handle, and a trigger release handle. The operating handle has a cam and ratchet at its lower end, for driving a ratchet bar against a compression spring (or pneumatic cylinder) to create compression force. The trigger release handle has a follower arm which latches against the ratchet bar, and it is moveable to release the ratchet bar and thereby to release the compression force. A striker plate moves forwardly and downwardly upon release of the compression, to strike a golf ball when in place. The striker plate is rotatably adjustable so that its angle and point of impact against a golf ball may be adjusted.