AMERICAN INSTITUTE. 



15' 



Hanson's Self-Acting Water Pump and Meter. 

 Thomas Hanson, 137 Third avenue, New-York. 



This engine is designed to elevate 

 water to a greater level than it would 

 naturally rise to; and operates l)y sur- 

 plus pressure in the pipes, not here- 

 tufore used. 



In cities supplied witli water from 

 an elevated reservoir, like the Croton 

 or Schuylkill water works, tlie water 

 when drawn from the pipes, rushes 

 out with great violence, instantly fill- 

 ing small vessels, often wasting much 

 water by unavoidable overflow, and 

 not unfrequently drenching the clothes 

 of the imwary; when suddenly stop- 

 ped, the rebound tends to burst the 

 pipes, and is often the cause of injury 

 and loss. 



Tlie Self-acting Puni]) makes pro- 

 fitable use of all this wild pressure in 

 the pipes, and converts its mischievous 

 tendency into a most useful occupa- 

 tion, that of pumping up, to a cistern 

 in the upper story of a house, the 

 water which would not rise there of 

 itself This is accomplished without 

 loss to any one, and with positive gain 

 to all interested, both in the water 

 and in the pipes which convey it. In 

 such cases the machine is attached to the service pipe in the lower 

 part of the house, between the street main and the lowest point 

 where the water is drawn. All the water used in the house passes 

 through it, w^orks its pistons, and is measured by a simple register 

 of its strokes, each of which represents a given and uniform quan- 

 tity. It requires no attendance, is almost silent in operation; 

 moves when water is drawn, and is at rest as soon as the water is 

 stopped. 



It may be worked by the refuse water from the upper stories of 

 hotels, where much is used, and willpumj) u}> at least seventy-five 



