top-block

English

Noun

top-block (plural top-blocks)

(nautical) A large ironbound block strapped with a hook, and, when used, hung to an eyebolt in the cap, used in swaying and lowering the topmast.
- 1819, Darcy Lever, The Young Sea Officer's Sheet Anchor:
  Underneath this Cap are Eye - bolts (b) , on each side : one is for the top Block, and the foremost one for the Fore Lift Block to hook to

References

“top-block”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

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