screw nut

noun

First recorded in 1805–15

Sink a screw nut in the center of the under side to engage the regular tripod screw.

It is provided with a cross handle (adjustable at any point along the length of the rod by means of a screw nut).

Through the opening E, the above two arms are introduced; and secured to the square of the rod by the screw nut.

The inferior pivots of the two pieces are supported by screw-sockets, working in an iron screw-nut sunk into the summer-bar F.

This handle may be attached at any convenient distance from the centre, by means of the slot and screw-nut J.

April 18, 2024petrichor

[pet-ri-kawr]

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