The symbol used to indicate seale construction in an FSWR.
See ‘left hand lay’
The symbol used to indicate seale filler wire in the construction of an FSWR.
The symbol used to indicate seale warrington construction in an FSWR.
Safe working load.
SAFE WORKING LOAD
The maximum load which may be applied to a crane, hoist, rope, chain or sling for particular conditions of use.
A body harness to which a lanyard or inertia reel can be attached to protect a person from falling or arrest a fall.
A hook provided with a safety latch across its throat intended to prevent a sling being accidentally dislodged.
A horizontal rope or webbing anchored to two or more points of a building or structure and tensioned to provide an anchorage for a person wearing a safety harness to attach a lanyard or inertia reel.
A stiffening member fixed between purlins or girts, generally at their mid span.
A multi-layered strand construction method in FSWR where equal sized wires in one layer are laid over an equal number of smaller equal sized wires in the next layer.
A multi-layered strand construction method in FSWR where a seale laid layer is laid over a warrington laid centre.
A temporary structure specifically erected to support access platforms or working platforms.
A serial hoist used with a suspension rope to raise and lower a cradle or boatswain’s chair during normal operation.
An elevating work platform where the platform is raised and lowered using a scissor mechanism.
A rope sometimes used on a suspended scaffold which does not normally support the cradle but which is rigged for use with a protective device.
A lashing for holding two ropes, or two parts of a rope together. Common types include round, square, flat, racking, throat and end seizings.
A tongued quick release device for chains or ropes. Often used to secure the anchor of a vessel.
Winding marline, twine or annealed wire tightly around a rope, usually to protect a splice from damage and to protect the user’s hands from cuts.
A grooved wheel or roller over which a rope or chain passes.
A derrick like appliance consisting of two legs in an ‘A’ formation, with a sheave block fixed to its apex and the framework stabilised with guys.
A method of joining two ends of fibre rope. It is used where the spliced section does not have to travel over a sheave.
A method of constructing a fibre rope using four strands layed around a core.
SIMPLY SUPPORTED BEAM
A beam which is fixed at each end.
A non-self supporting portable ladder whose length cannot be adjusted.
A fibre rope tackle where both the upper and lower blocks have single sheaves (two single blocks).
Vegetable fibre obtained from the sisal plant. Sometimes used to construct natural fibre ropes.
The rotation of a crane’s boom or jib in the horizontal plane.
A crane with a boom or jib which has slewing capability.
SLEWING MOBILE CRANE
A powered mobile slewing crane. It does not refer to a front-end loader, backhoe, excavator or similar equipment when configured for crane operation.
Detachable lifting gear made from FSWR, natural fibre, chain, or synthetic fibre.
A sheave block with a drop side to permit the bight of a rope to be placed or removed without reeving it through.
The sudden application of power to lift a load, causing large impact forces on the load and the running gear.
Dragging a sling or dragging a load.
A fibre rope sling.
A dangerous method of twitching tight the parts of a rope by placing a bar between them and taking several turns.
A rigid member used to connect two trolleys from which a scaffold is suspended. It keeps the suspension points aligned when the cradle or working platform is traversed.
A beam with a central lifting attachment and with slinging points at each end. Used to reduce the angle of slings or to sling loads with large surface areas or to reduce the strain on a load.
SPECIAL DUTY WORKING PLATFORM
A platform on a scaffold designed for live loads greater than 675kg per bay.
See ‘cable pulling stocking’.
See ‘bald eye’.
Ropes such as guys and stays which do not run or work over sheaves or drums, and the gear used with such ropes.
See ‘safety line’.
A self-supporting portable ladder of fixed length having flat steps or treads and hinged back legs.
A derrick crane stabilised by rigid backstays and sleepers.
See ‘cable pulling stocking’.
A number of wires or fibres layed in a spiral which are then layed up with other strands to form a rope.v
A temporary member fixed to a load to strengthen or stiffen it during lifting.
An endless sling.
Chain constructed with a stud across the centre of each link. Commonly used for marine purposes, the stud prevents the chain from jamming when it comes out of ships’ lockers. Unsuitable for general lifting purposes.
SUPER DUTY HOIST
A materials tower hoist with a WLL greater than one tonne. It is sometimes constructed as a dual tower with a materials platform in one tower and a concrete bucket in the other.
A scaffold incorporating a suspended platform which can be raised and lowered in normal use, including a boatswain’s chair.
The portion of a suspended scaffold (including a trolley track) which is mounted at a higher level than the cradle and which supports and positions the cradle. Sometimes called a ‘roof rig’.
A rope used in a suspended scaffold to support a cradle.
A metallic fitting attached to FSWR using radial pressure to form an eye.
A suspended scaffold with a single row of suspension ropes.
A rotating item of lifting gear which can rotate without spinning the rope, hook or load.
Manufactured fibre used in the construction of fibre ropes and slings, such as polyamide (nylon), polyester, polyethylene, polypropylene, etc.