A History of Inventions, Discoveries, and Origins (Vol. 1&2). Johann Beckmann
Чтение книги онлайн.

Читать онлайн книгу A History of Inventions, Discoveries, and Origins (Vol. 1&2) - Johann Beckmann страница 82

СКАЧАТЬ also has given the representation of two ancient saws taken from Gruter. One of them seems to be only the blade of a saw without any frame; but the other figure I consider as a cross-cut saw; and I think I can distinguish all the parts, though it is imperfectly delineated. One may however perceive both the handles between which the blade is fastened; the wooden bar that binds them together, though the blade is delineated too near it; and about the middle of this bar, the piece of wood that tightens the cord which keeps the handles as well as the whole instrument firm. Saws which were not placed in a frame, but fastened to a handle, are thus described by Palladius657:—“Serrulæ manubriatæ minores majoresque ad mensuram cubiti, quibus facile est, quod per serram fieri non potest, resecando trunco arboris, aut vitis interseri.”