the links or their attachments being elastic

Full Title

Yielding couplings, i.e. with means permitting movement between the connected parts during the drive (couplings disconnectable simply by axial movement F16D1/10; slip couplings F16D7/00) > with the coupling parts connected by one or more intermediate members (F16D3/16 takes precedence) > comprising pushing or pulling links attached to both parts (F16D3/64 takes precedence) > the links or their attachments being elastic