"Flat arch" Quotes from Famous Books
 ... upon the level with the bottom of it as possible. If the Chimney is apt to smoke, it will sometimes be necessary either to lower the mantle or to diminish the height of the opening of the Fire-place, by throwing over a flat arch, or putting in a straight piece of stone from one side of it to the other, or, which will be still more simple and easy in practice, building a wall of bricks, supported by a flat bar of iron, immediately ...
— ESSAYS, Political, Economical and Philosophical. Volume 1. • Benjamin Rumford |
