1a. Type of knot, sometimes called a Lark's Head:
1b. Type of wrap used with a wire rope sling around a beam, or a polyester round sling around a truss chord.
http://wireropeguide.com/
2. Electronic component, see Choke, Filter and Choke, torodial .
1b. Type of wrap used with a wire rope sling around a beam, or a polyester round sling around a truss chord.
http://wireropeguide.com/
2. Electronic component, see Choke, Filter and Choke, torodial .