Fourfold-block



noun, Machinery.
1.
a block having four pulleys or sheaves.
Compare (def 11).

Tagged:

Read Also:

  • Fourfold-purchase

    noun 1. a tackle that is composed of a rope passed through two fourfold blocks in such a way as to provide mechanical power in the ratio of 1 to 5 or 1 to 4, depending on whether hauling is done on the running or the standing block and without considering friction. Compare (def 2).

  • Four-footed

    [fawr-foo t-id, fohr-] /ˈfɔrˈfʊt ɪd, ˈfoʊr-/ adjective 1. having four feet: He considers his dog to be his four-footed friend. adj. Old English feowerfote; see four + foot (n.).



  • Four-footed butterfly

    noun 1. . [bruhsh-foo t-id] /ˈbrʌʃˌfʊt ɪd/ noun 1. any of several butterflies of the family Nymphalidae, including the fritillaries, mourning cloaks, anglewings, and commas, characterized by reduced, nonfunctional forelegs.

  • Four-freedoms

    plural noun 1. freedom of speech, freedom of worship, freedom from want, and freedom from fear: stated as goals of U.S. policy by President Franklin D. Roosevelt on January 6, 1941. Four kinds of freedom mentioned by President Franklin D. Roosevelt in a speech in 1941 as worth fighting for: freedom of speech and expression, […]



Disclaimer: Fourfold-block definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.