Doughty Lightweight Parallel Coupler, (Cheeseboro) The Doughty Lightweight Parallel Coupler provides a firm and fast fixing between two parallel bars, and is designed to fit 1.9'' - 2'' diameter tubes. Manufactured from high tensile Aluminum Extrusion, the coupler is specifically designed to attach to round tubes or truss chords and to suspend equipment and luminaries. Broadly applicable in the theatre, film, TV and photographic industries. Lightweight Swivel and 90-Degree versions are also available. For any inquiries, please contact us via chat. Downloads: User Manual Key Features: Fits 1.9'' - 2'' diameter tubes High tensile Aluminum Extrusion construction Designed for round tubes or truss chords Ideal for suspending equipment and luminaries Available in Black or Polished Aluminum finish Specifications: SWL: 1102 lbs Tube Diameters: 1.9'' - 2'' Width: 2'' Tube Centres: 3.3'' Weight: 1.67 lbs References: Spec Sheet User Manual Cert Cheeseborough clamps aka Cheeseboro, Scaffold Clamps, Couplers, Swivels and even Cheese-burger or Burger Clamps. The name is believed to derive from the Chesebro-Whitman manufacturing company of New York. The devices are used for connecting iron pipes or aluminum tubes. They come in two styles; rigid (aka fixed 90°) or Swivel.
