Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 60
tary pump. A. The simplest form of this type of pump is illus-trated in Fig. 28. It consists of two gears suitablymounted on short shafts that are carried by an ellip-tical casing. Power is applied to one, and the otheris turned the same as any other form of gears. 187. Q. How does this action… … 50 QUESTIONS AND ANSWERS OX little more than one-half of the circle, where it meets alike quantity discharged from the opposite side. Asthe discharge opening is located at this point, the wateris forced out through it.
Pumping machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-223-145.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-613-413.webp)