A stake (1) suitable for use as a fence post comprises a core member (5) of timber located in a bore (4) of a sleeve (3) of polyethylene material with the sleeve (3) shrunk onto the core member (5). The sleeve (3) is formed in a mould in a rotational moulding process. The sleeve (3) is removed from the mould when the temperature of the sleeve is at a temperature of approximately 100°C and the bore (4) is of transverse cross-section slightly greater than the transverse cross-section of the core member (5). The core member (5) at room temperature of approximately 20°C is inserted into the bore (4) of the sleeve (3) while the sleeve (3) is at the temperature between 80°C and 100°C. The sleeve (3) is then shrunk onto the core member (5) by allowing the sleeve (3) to cool to room temperature in a room temperature environment.
B29C 63/18 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using tubular layers or sheathings
B29C 63/42 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor by liberation of internal stresses using tubular layers or sheathings
2.
A COUPLING ASSEMBLY FOR COUPLING A VALVE TO AN OUTLET FROM A CHAMBER AND A CHAMBER COMPRISING THE COUPLING ASSEMBLY
A coupling assembly (1) for coupling a vortex valve (3) to an outlet port (7) from a chamber (5) of a manhole (6) comprises a housing (10) and a carrier element (25) which carries the vortex valve (3). The carrier element (25) is slideable in the main housing (10) along a substantially vertical plane (36) of movement between a first state with first and second inclined abutment surfaces (12,48) of the main housing (10) and the carrier element (25), respectively abutting each other with the vortex valve (3) communicating with the outlet port through a communicating duct (45) in the carrier element (25) and an outlet duct (11) in the main housing (10) and a second state with the first and second abutment surfaces (12,48) spaced apart from each other and with the vortex valve (3) and the carrier element (25) clear of the outlet duct (11) through the main housing (10).
A stake (1) comprising a tubular element (3) defining a hollow interior region (4) which terminates in a closed upper end (6) and a lower tapering ground engaging portion (5) which defines a ground engaging pointed tip (10). Front and rear recesses (12, 14) are formed in opposite side walls (11) of the stake (1) to accommodate reflective elements. The stake (1) is suitable for use in identifying a boundary between a road and a side margin adjacent the side edge of the road. A bollard (120) for a pavement comprises a tubular element (121) defining a hollow interior region (123) and having a reinforcing tube (134) embedded in an expanded plastics material (137) located centrally in the tubular element (121). A lower ground engaging portion (135) of the reinforcing tube (134) extends from the hollow interior region (123) for embedding in the ground beneath the pavement.
E04H 17/10 - Wire fencing, e.g. made of wire mesh characterised by the way of connecting wire to the postsDroppers
E04H 17/12 - Wire fencing, e.g. made of wire mesh characterised by the way of connecting wire to the postsDroppers the wire being placed in slots, grooves, or the like
E01F 9/011 - Upright bodies, e.g. marker posts or bollards; Supports for road signs (posts or poles in general E04H 12/00; means for attaching signs to a supporting structure in general G09F 7/18)
E01F 9/017 - self-righting after deflection or displacement
E01F 15/00 - Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollardsArrangements for reducing damage to roadside structures due to vehicular impact
4.
AN ASSEMBLY AND A METHOD FOR FORMING A PLURALITY OF SIDE BY SIDE ANIMAL STALLS AND A STALL FORMING ELEMENT AND A METHOD FOR FORMING THE STALL FORMING ELEMENT
An assembly (1) comprises a plurality of stall forming elements (3) secured together to form an elongated spine (17) with a plurality of side members (12) extending sidewardly from the spine (17) defining a plurality of stalls (2) therebetween. Each stall forming element (3) comprises a main member (8) and a side member (12) extending perpendicularly from the main member (8) intermediate first and second ends (9,10) of the main member 8. Engagement projections (18) extend from first ends (9) of the main members (8) of the stall forming elements (3) for engaging complementary engagement recesses (19) in the second ends (10) of the main members (8) of adjacent stall forming elements (3) for securing the main members (8) of the stall forming elements (3) together to form the spine (17). Divider elements (6) are engaged in the corresponding side members (12) and the main member (8) which combine with the side members (12) to form the stalls (2) with the spine (17).
A float (1) comprising a hollow pneumatically pressurisable ovoid shell (5) is provided with a damping plate (12) extending laterally outwardly around the shell (5) for damping vertical upward and downward movement of the float in water during stormy conditions, thereby minimising the effect of the buoyant upward propulsion force acting on the float when the float is submerged in stormy conditions. A keel (18) extends downwardly from the float (5) for minimising rolling movement of the float (1). A pair of coupling plates (22) extending from front and rear ends (19, 20) of the shell (5) facilitate coupling of the float (1) between a pair of spaced apart tethering ropes used in mussel growing. A plurality of the floats (1) may be secured between a pair of spaced apart tethering ropes at spaced apart intervals along the tethering ropes for supporting the tethering ropes so that crop ropes impregnated with mussel spawn may be suspended from the tethering ropes for growing mussels. A navigational buoy (60) is also disclosed, which comprises a lower float (61) and a pillar (62) extending upwardly therefrom for carrying navigational and other instrumentation.
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