using bolts, fixed to a flange, which are able to tilt in slots of another flange, and being maintained there by the tightening of nuts

Full Title

Couplings of the quick-acting type ( radially-binding sleeves F16L17/04, F16L21/06; connecting hoses to rigid members F16L33/00) > in which the connection between abutting or axially overlapping ends is maintained by locking members (F16L37/22 - F16L37/26 take precedence) > using hooks, pawls, or other movable or insertable locking members (F16L37/084 takes precedence) > using bolts, fixed to a flange, which are able to tilt in slots of another flange, and being maintained there by the tightening of nuts