Clupet double coil compression piston ring
Clupet double coil compression piston ring
Two Wellworthy superslot oil control rings
Wellworthy bevelled scraper ring, 5" diam
Spare engine piston rings
1860
Parts of steam table engine by Maudslay and Son and Field
piston rings
1935
Clupet slotted scraper piston ring
Wellworthy oil grooved and drilled ring, 5" diam
Wellworthy stepped scraper ring, 4.5" diam
Wellworthy compression ring, 5.6875" diameter
Wellworthy Simplex patent piston ring
1936
Perfex compression piston ring
1920