British Standard followed by a number which denotes a particular publication.
A method of slinging using slings with hooks where the sling is passed around the load and the hook is secured back onto the ring or hook above the load.
A splice in the end of a fibre rope to prevent it from unlaying.
An eye in a rope which is not protected by a thimble. It is also called a ‘soft eye’
See cantilever platform materials hoist.
A method of securing a sling around an object by bringing both eyes back together with an angle factor = 1.
A jib extension used with the auxiliary winch on a hydraulic boom crane and often extending from a fly jib to increase the crane’s operating radius and drift
A bolted joint in steel erection designed to allow for some joint slip for alignment.
An anchorage point on a sheave block when reeving a tackle or purchase.
The load in any fall of rope in a multiple fall tackle or purchase. It equals the total load being lifted divided by the number of falls supporting the load.
A tie made in fibre rope to create a temporary eye (such as a bowline bend) or to join ropes (such as a sheet bend).
The middle portion of a length of rope. For example, a ‘bowline on the bight’ means a bowline formed in the middle of a rope.
The lower end point of a hook.
A rope defect, springing or enlargement of a FSWR – usually in Lang’s Lay.
See bright wire.
An appliance which supports one or more sheaves.
BLOCK AND TACKLE
A sheave block or blocks used with fibre rope.
A suspended scaffold where the platform is a chair or similar device suitable for use by one person.
A safety belt designed to be worn around the waist and which does not have shoulder straps or leg straps.
A member attached to and cantilevered from the crane structure from which the load is suspended. Can be luffed or sleeved while the crane is handling a load.
The end of the boom nearest to the crane.
The end of the boom furthest from the crane.
See boom type elevating work platform.
BOOM TYPE ELEVATING WORK PLATFORM
A powered telescoping device, hinged device or articulated device or any combination of these used to support a platform on which personnel, equipment and materials may be elevated to perform work. Also known as ‘cherrypickers’.
A fitting used to connect a chain to FSWR where the connection is required to pass over a sheave.
See rigging screw.
A shackle with bowed sides.
A rope tensioned to a structural member to prevent it from distorting during lifting.
See guaranteed breaking strain (GBS).
A powered crane consisting of one or more bridge beams mounted at each end to an end carriage that can travel along elevated runways. It may be cabin controlled or remote controlled (such as pendant control).
Uncoated steel wire used in the construction of FSWR. Also known as ‘black wire’.
BRITISH DOCKS SPLICE
Orthodox 5 tuck eye splice in FSWR.
BUSH ROLLER CHAIN
Chain constructed with parallel flat links and cylindrical rollers, such as bicycle and motorcycle drive chains.
A hoist incorporating a mast or guides which is used on building and construction projects. It includes a cantilever platform materials hoist and a personnel and materials hoist.
A wire rope grip consisting of a U-bolt, two nuts and a saddle.