Sheraton, Thomas; Bensley, Thomas; Mathews, James; Bensley, Thomas [Oth.]; Mathews, James [Oth.]; Terry, George [Oth.]; Jordan, Jeremiah Samuel [Oth.]; Wayland, L. [Oth.]: The Cabinet-Maker And Upholsterer's Drawing-Book: In Three Parts (London: Printed For The Author, By T. Bensley; And Sold By J. Mathews ... C. Terry ... J.S. Jordan ... L. Wayland ... And By The Author, 1793)

( n6 )
The height of the frame, including the caftors, is fourteen
inches.
French caftors are the beft for the purpofe, fixed upon a
ftrong iron plate, fcrewed to the under edge of the fides and
ends, fo that the caftors may run clear of the pillars, and be
detached from them, by which their rife is hid from the eye.
Thefe are remarks made from my own experience in the
bufinefs, which I offer for the afliftance of the candid workmen
of both branches; but the fnarling critic may reject them if he
pleafe.
Prob. XXXIII. Fig. 36. Plate VII.
Vo conJlruEi an Elliptical Dome,
Operation.—Let A B, D E be the plan of the tefter, wrhofe
infide forms a true ellipfis by the help of angle pieces framed
in, which muft be evident to every workman.
The oval being thus formed according to the infide length
and breadth of the tefter, and the two diameters being already
drawn, proceed with one quarter of the dome thus: draw the
plan of the upper tefter, into which the ribs are to be fixed,
as the fecond elliptic line ihows. Divide then the portion of the
ellipfis