Abstract: A fragmentation grenade comprises a quantity of high explosive (11) contained within a casing (12, 13) and means (29) for detonating the high explosive (11) so as to cause the casing (12, 13) to disintegrate into a plurality of high velocity fragments (13). The high explosive (11) and the casing (12, 13) are so configured that the fragments (13) are preferentially projected in one or more particular directions relative to the axis (X--X) of the casing (12, 13), and the grenade is provided with a self-righting mechanism (22), whereby the axis can automatically be placed in a desired orientation.

Abstract: An infant's bottle is provided with a valved cap adapted for quick and easy movement between open and closed positions. The valved cap includes a base member mounted by a threaded neck ring or the like over the mouth of a beverage container such as a baby bottle. The neck ring also retains a slide-fit valve sleeve on the base member for reciprocal motion between open and closed positions to respectively permit and prevent beverage flow from the bottle. A drinking mouthpiece such as a conventional nipple for infants or a ported spout for toddlers is mounted on the valve sleeve.

Abstract: A heated support stand is provided for supporting a stethoscope in a convenient and ready-to-use position. The support stand comprises a night light unit having a low wattage bulb disposed behind a protective shade, wherein the shade has a size and shape to receive and support the chestpiece of a stethoscope in close proximity to the bulb. The bulb radiates sufficient heat to warm the chestpiece to a comforable temperature compatible with a patient's body temperature, thus eliminating patient shock and/or discomfort caused by placement of a cold instrument onto the patient's body.

Abstract: A twin compartment squeeze bottle is made of plastic material so that the contents of the compartments can be expressed by manual squeezing of the compartments without having to invert the bottle. The compartments are integrally connected by a vertical web and each has its own upper neck outlet and individual cap. The bottom of the compartments are flat so that the bottle is self-standing.

Abstract: Novel quinolones of formula I ##STR1## and pharmaceutically acceptable acid addition salts thereof in which the dotted line between positions 2 and 3 of the quinolone ring represents an optional bond, R is hydrogen, 1-methyl or 2-lower alkyl; R.sub.1 is lower alkyl; R.sub.2 is hydrogen, halo, lower alkyl, lower alkoxy, trifluoromethyl, cyano, difluoromethoxy, methylsulphinyl, phenylsulphinyl or the group --NR.sub.4 R.sub.5 or the N-oxide thereof wherein R.sub.4 and R.sub.5, which may be the same or different, are lower alkyl or, together with the nitrogen atom to which they are attached form a pyrrolidino, piperidino or morpholino radical; and R.sub.3 is hydrogen, fluoro, lower alkyl or lower alkoxy provided that, when R.sub.3 is lower alkoxy, R.sub.2 is other than lower alkoxy have utility as antihypertensive agents. Processes for preparing the quinolones and pharmaceutical compositions containing them are disclosed.