sheave: ø 275 mm

sheave: ø 300 mm – Boston Blockport – SWL 5 ton – tested 20 ton

sheave: ø 300 mm

sheave: ø 450 mm

sheave: ø 300 mm – Boston Blockport SWL 5 ton – tested 20 ton

sheave: ø 320 mm – with swivl

sheave: ø 500 mm

NULL

sheave: ø 600 mm

fabr. Butters Bros, Glasglow – sheave: ø 700 mm