by jointly covering two bead-rings, located parallel to each other at a distance apart, with fabric or cord layers

Full Title

Producing pneumatic or solid tyres or parts thereof (producing inner tubes B29D23/24; constructional form of tyres or parts thereof B60C; connection of valves to inflatable elastic bodies B60C29/00; testing of tyres G01M17/02) > Pneumatic tyres or parts thereof > Building tyres > by jointly covering two bead-rings, located parallel to each other at a distance apart, with fabric or cord layers