Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 643
r chart at right, movehorizontally to coal diagonal, thence down to required speed of 280. This intersection shows a 12 x 7bucket to be suitable or any bucket which will carry 235 cubic inches. Use 24-inch head pulley at44 r.p.m. Scraper Conveyors. The type of conveyor ordinarily used for handling…
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-355-147.webp)
