Plastering, plain and decorative. A practical treatise on the art & craft of plastering and modelling ... Together with an account of historical plastering in England, Scotland, and Ireland, accompanied by numerous examples (1897)
Millar, William · London, B.T. Batsford · leaf 251
curve to be drawn by hand, a defect, however, obviated by using a column trammel, which is used for a column that diminishes with a graceful curve from the base to top of the shaft. This trammel is made as follows : — COLUMN Trammel. — A column trammel is simple in construction, and when carefully… … No. 29. — Diminishing Columns. — Column Trammel and Diminished Floating Rule. column trammel, the method of finding the point D on Fig. 2 a is given on a separate sketch (Fig. 5) to show the method more clearly. Fig. 5 illustrates the method of obtaining the point D, on which the centre pin is…
Plastering · Decoration and ornament, Architectural
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.