Show antiquity of the water kanap the water pump of today is but an improvement on invention which first came into use during tho reign of Ptole mies and to B 0 the name which is very similar in all languages is derived from the greek word lempo to bend or throw the most ancient description we have of a water pump is by hero of alexandra there is no authentic account of the general use of tha pump in germany previous to the beginning of the sixteenth century at about that time the endless chain and bucket works for raising water from mines began to be replaced by pumps in the seventeenth century rotating like the nham engi two pistons and the prince one were first used plunger pistons were invented by morland an hi 1674 the double acting by de la sire the french abade bician new york telegram |