CHAPTER XIV 

 PUMPING MACHINERY 



367. Early methods of raising water. The oldest 

 method of raising water was by bailing. The vessel and 

 the water it contained were raised either by hand or by 

 machines to which power might be applied. The buck- 

 ets were provided with a handle or a rope when it was 

 desired to draw water from some depth. To aid in draw- 

 ing water from wells, the long sweep or lever weighted 



at one end was devised. This 

 sweep is often seen illustrated 

 in pictures of an old home- 

 stead and similar pictures. Fol- 

 lowing the sweep, a rope over 

 a pulley with two buckets, one 

 at each end, was used. Later, 

 one bucket was used and the 

 rope carried over a guide pul- 

 ley and wound around a drum. 

 This latter method of raising 

 has not entirely disappeared 

 and is still in use in many places. 



For raising water short distances and in large quantities, 

 swinging scoops and flash wheels are used. The scoop 

 is provided with a handle and is swung by a cord long 

 enough to permit it to be dipped into the water. The 

 water is simply pitched to a higher elevation much like 

 grain is elevated. Flash wheels are the reverse of the 

 undershot water wheel; the paddles or blades ascend- 

 ing a chase or waterway carry the water along with 



FIG. l88 THE WELL SWEEP, 

 AN OLD METHOD OF RAIS- 

 ING WATER 



