coal mining coupling
Grooved disc coupling
Haulage clip or coupling for endless ropeways
Three link coupling
1995
Sterne's patent coupling
1874
Slip coupling
Slip coupling
Pair of screw couplings for fire hose
Pair of instantaneous couplings for fire hose
Twelve inch 3-arm bonded asbestos lined rim friction clutch coupling complete with 12" rim
Coupling, North Eastern Railway
1904
Coupling, Slip, Carriage Screw Coupling
London & North Western Railway Coupling
1849
Flexible coupling with protective cage
1964-1967
Flexible coupling and old leather washer by peter Brotherhood
1890 and 1883
Flameproof cable coupling.
Standard Steam Heating Coupling
1895-11