Abstract: Elongate floatable equipment for use as a bouyant barrier for encircling or partially enclosing a spillage of oil, debris or other floating matter comprising hollow inflatable bouyancy units arranged in a row end to end within a sleeve which is formed by a tubular casing of deformable material. The tubular casing comprises an inner layer of a fibrous water absorbent material which is encased within an outer layer formed from a net of a high tensile filamentary material. The net layer comprises an axially-spaced series of circumferential hoops interlinked by zig zag strands that run from end to end of the casing, the hoops and zig zag strands together forming a geodetic pattern mesh. A skirt is laced to the net layer of the casing in a zig zag pattern along the casing.

Abstract: A liquid pressure control system for advancing logs (19) towards a rotary cutter wheel (10) in timed relationship to successive cuts by cutters on that wheel (10). A cam arrangement (52) on the cutter wheel (10) actuates jerk pumps (71 and 72) to dispense hydraulic fluid to hydraulic rams (33 and 34) in the timber feed mechanism (18).

Abstract: A woodwool producing machine comprises a cutter wheel which is supported with its axis vertical and which has a frusto-conical rim at its outer periphery. The rim tapers upwardly and has a circumferential array of slots formed in it, a cutter assembly, which comprises a pair of cutters for cutting woodwool strands from timber stock, is mounted in each slot. Several timber feed magazines are positioned at spaced intervals around the circumference of the rim and are adapted to support and locate pieces of timber stock against the outer surface of the rim with their grain generally tangential to the rim. The cutter wheel is driven in operation so that strands of woodwool are cut by the cutters from pieces of timber located against its rim. The woodwool is directed to the interior of the wheel, through the slots, and falls onto a collector.