Abstract: An apparatus for coating surfaces consists of a basin, open to the atmosphere, divided into two channels by a wall running perpendicular to the coating direction. Liquid is supplied to the primary channel, the channel farther from the curtain. A continuous, adjustable gap between the dividing wall and the bottom of the basin offers resistance to flow but passes the coating composition from the primary to the secondary channel. The secondary channel has an edge that is horizontal and relatively low so that the coating composition overflows it to form a free-falling curtain. The dividing wall, by providing flow resistance, assists in distributing the supplied coating composition along the length of the primary channel, and reduces any flow disturbances caused by the entering coating composition. The secondary channel promotes additional evening of the flow distribution before the curtain forms.

Abstract: A rigid handcuff (FIG. 3) includes a pair of separate lockable bracelet members (16, 18) each having a respective plate-like extension (30, 32) each of which abuts the other at end face along a line normal to a longitudinal axis of the handcuff, the line and the axis lying in the common plane of the bracelet members. A respective plate-like connector (38) overlies the abutted extensions (30, 32) with the outer ends of each connector (38) abutting against a respective bracelet member (16, 18). The extensions (30, 32) and the connectors (38) ensure that the bracelet members are restrained against all movement relative to one another thereby providing a rigid handcuff assembly. A cover assembly comprising a pair of opposed plastic cover members provides a rigid grip for the handcuff intermediate the bracelet members.

Abstract: A baton, e.g. for use by police, has a shaft and a handle, the handle being movable relative to the shaft between a first position in which it is generally in line with the shaft and a second position in it extends transversely to the shaft. A further handle is extendible when the first handle has been moved to extend transversely, and the shaft of the baton also may be extendible. Thus the baton is convertible from a compact straight configuration to a side-handled configuration.