College Entrance Examination Board · Boston, New York [etc.] : Ginn and company · leaf 81
se altitude is 3 inches, has for its base a Ij-inch square,two opposite sides of which are parallel to the vertical plane. The apexis 1 inch behind the vertical plane and 2 inch below the horizontal plane.The axis is parallel to the vertical plane and inclined at an angle of 60 degreesto the… … Description.—The material of the rack shown above is all f inch thick and therod is f inch in diameter. The board is 15 inches long and 4§ inches wide.Each bracket is made from a piece 3 inches long and 2 inches wide, by cut-ting off the two corners at 45 degrees, as shown. The hole is in the…
Science · Drawing · Universities and colleges -- United States Examinations Science
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
