Junk ring

Definitions

  • Webster's Revised Unabridged Dictionary
    • Junk ring A packing of soft material round the piston of a steam engine
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Usage

In literature:

The piston, junk ring, and packing rings are of cast iron.
"An Introduction to Machine Drawing and Design" by David Allan Low
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In news:

Found lots of junk but no luck on my wedding ring.
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