Spar base

Details Spar base Spar base

1980-05-12

1982-03-16

Basinger, Sherman D.

Ships

Spars

Masts and masting

B63H 910

Patent

active

043195350

ABSTRACT:
A base for the spar, i.e., mast, of a wind-propelled vehicle useful for attaching the spar, i.e., mast, to the universal joint which universal joint is further attached to the wind-propelled vehicle. The base has a cylindrical bore for receiving the spar, i.e., mast, in the upper portion thereof and the lower portion has an axially-located bore for the passage of a bolt which connects the lower end of the spar, i.e., mast, to a portion of the universal joint, and two line passages extending through the lower portion generally perpendicular to the longitudinal axis of the base, each having a pair of upper surfaces which slant inwardly downward towards the center of the passage and define a pair of grooves in the lower portion, with one of the grooves on one of the passages having a plurality of teeth on the opposed side walls thereof which grip and hold a line, acting as a jam cleat.

REFERENCES:
patent: 1694312 (1928-12-01), Clark
patent: 3505967 (1970-04-01), Peterson

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