Flashcards in AC-Ch. 16 Tree Climbing Deck (43)
Climbing line installed in a tree to gain access to but not used to work in the tree
Heavy duty pulley with an integrated connection point, a rotating sheave for the rope and extended cheek plates. Used in tree rigging operations
Piece of gear that enables a climber to ascend a rope. Attached to the rope it will grip in one direction and slide in the other.
In rigging a technique for lowering a limb without allowing either end to drop
Type of knot used to join two rope ends together
Ratio of the diameter of an object to the diameter of the rope that is wrapped around it
Curve or arc in a rope between the working end and the standing part.
Heavy duty pulley used in rigging. Designed for dynamic loads
Casing enclosing one or more pulleys
Post on which wraps can be taken with a rope to tie it off or to provide friction for control
Method of lowering pieces when the rigging point is below the work traditionally without the use of a block.
Connecting device. Oblong metal ring used in climbing and static rigging that is opened and closed by a spring loaded gate.
Hitch used to secure a tree climber to the climbing line, which permits controlled ascents, descent and work positioning.
Rope that meets specifications for use in tree climbing
Work positioning harness designed for climbing trees.
Sharp devices strapped to a climber's lower legs to assist in climbing poles or trees being removed.
Factor by which the rated or minimum breaking strength of a rope or piece of equipment is divided by in determining its working load limit
Rope construction consisting of a braided rope within a braided rope both of which carry part of the load
Branch removal technique consisting of an undercut and then a top cut usually made farther out on the branch or with a chain saw directly over the undercut
Forces created by a moving load. Load that changes with time and motion.
Device used to take wraps in a load line to provide friction for controlled lowering or climbing
Rope construction consisting of a braided rope with no core.
Short rope equipped with carabiners, snaps and/or eye splices. Used for temporarily securing a climber in one place.
Rope used to lower a tree branch or segment that has been cut. Lowering line
Small, light duty pulley used in climbing operations. Often used as a knot tender
Method of using ropes and hardware in tree pruning or removal, to control or direct the descent of cut material or to handle heavy loads.
Rope usually the load line used in rigging operations
Placement in the tree or any other point through which the load line passes to control rigging operations
Length of rope, usually with at least one eye splice, used to secure equipment or tree sections in rigging operations.
Connecting device with a threaded closure mechanism. Used to secure equipment or tree sections in rigging operations.
U-shaped fitting with a pin running through it. Clevis.
Inner fitting within a block or pulley over which the rope runs.
Dynamic, sudden force placed on a rope or rigging apparatus when a moving load or piece is stopped.
Set of methods used to ascend on a single rope as opposed to the doubled rope commonly used in secured footlocking techniques or dynamic climbing systems.
Single rope technique
Connecting device used by tree climbers primarily for connecting the climbing line to the saddle.
Separate, short length of rope used to tie the friction hitch in a climbing system
Inactive part of a rope.
Force at which a new piece of equipment or rope in testing fails in tension under a static load
Tying a line on the tip end of a branch to be removed.
End part of a rope used for rigging and climbing.
Tensile strength divided by design factor. Maximum load that should not be exceeded in a piece of equipment, rope or rope assembly when performing its normal working function
Working load limit
Lanyard used in climbing, often as a secondary means of attachment.
Work positioning lanyard