Tilt attachments for machines, namely, machine couplings,except for land vehicles; attachments being machine couplings for excavators; tilt attachments being machine couplings for excavators,bulldozers and earth moving machines; machine couplings;non-electric couplers being parts of machines;non-electric couplers in the nature of tilt attachments being parts of machines; machine couplers for excavators; component parts and fittings for the aforementioned goods