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 534
ng very easily when worn. At the back of the valve is a plug B, the use of which is topermit the introduction of a rod to clean out the blow-off pipe when desirable. The stem whichraises and lowers the disc is held in place by lock-nut which is prevented from unscrewing by a non-rotating washer.… … ^ Fig. 26a. Application of Erwood Swing-Gate Valve.
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
