Jar: Difference between revisions

Revision as of 19:06, 2 June 2024

n.) In deep well boring, a device resembling two long chain links, for connecting a percussion drill to the rod or rope which works it, so that the drill is driven down by impact and is jerked loose when jammed.

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	n.) ~~The measure of what is contained in~~ a ~~jar; as~~, a ~~jar of oil; a jar of preserves~~.		n.) In deep well boring, a device resembling two long chain links, for connecting a percussion drill to the rod or rope which works it, so that the drill is driven down by impact and is jerked loose when jammed.