Ruler (1)

From Inventions

Revision as of 09:35, 21 July 2010 by Ghada (Talk | contribs)
(diff) ← Older revision | Current revision (diff) | Newer revision → (diff)
Jump to: navigation, search

Name used since Renaissance times (from the Latin regula).


Description

Instrument for drawing straight lines. Usually made of wood, but sometimes of ivory or brass, rulers generally had a squared edge for tracing lines in dry point or pen-and-ink, and a rounded edge for tracing lines by pencil and transcribing measurements. In his treatise on architecture Vincenzo Scamozzi describes it as follows: “…rulers should be made of pear wood, or apple wood, or jujube or sorb, either domestic or wild … [they have] a squared edge for drawing occult lines, or blunt with the point of an ivory stylus, or with a pencil point … Rulers or vanes… [can be] of ebony, or ivory … and those made of metal leave stains on the paper …”


Bibliographical Resources

Scamozzi, Vincenzo, L’idea della architettura universale, Venezia, 1615, Parte I, Lib. I, Cap. XV, p. 49.



Images


Author of the entry: Filippo Camerota

Personal tools
Categories
In other languages