Hand-Book for Steam Engineers and Owners of Steam Engines: Being a Practical Guide to the Selection and Care of Steam Machinery. E-book. Formato PDF William M. Barr   -  Forgotten Books, 2017  - 

This demand comes also from the farmers, a class of men who must have engines whether they know how to use them or not.

Pumping Machinery: A Practical Hand-Book Relating to the Construction and Management of Steam and Power Pumping Machines. E-book. Formato PDF William M. Barr   -  Forgotten Books, 2017  - 

A water-elevator has been defined (knight) as a device for raising buckets from wells, and a pump as a device for lifting water by the motion of a piston in a cylinder. Among the more important water-elevators are the fol lowing.