Ernest and Hannah Hayes. Photos supplied/Archives NZ/Yvonne Caulfield. : Straining to find the truth

Hayes’ version of the permanent wire strainer. : Straining to find the truth

Hayes’ Portable Wire Strainer. : Straining to find the truth

the designmark attached to the Hayes Smooth Grip Chain Grab Wire Strainer. : Straining to find the truth

Ernest Hayes’ design for a dual front wheel for a bicycle. : Straining to find the truth

John Reid’s design for a wire strainer. : Straining to find the truth