box frame

box frame ExamplesWord Origin noun

1. Architecture. a monolithic reinforced-concrete structure having walls and floors in the form of slabs.
2. Building Trades. a window frame with pockets for sash weights.

Origin of box frame First recorded in 1875–80 Examples from the Web for box frame Historical Examples of box frame

A cargo-cover of light canvas not only closely fits the bottom and sides of the box-frame but overlaps the top.

True Tales of Arctic Heroism in the New World

Adolphus W. Greely