Henry Johnson, ot Hartford, Conn., has invented an improved lifting and force pump, which improvement consists in a new method of combining together in one, the air chamber and upper portion of ...

The force pump was discovered during the archaeological excavations at Tarrant Hinton. It was found at the bottom of a well in the Roman villa courtyard. The pump may have been in use from the 2nd ...

The great advantage of this pump is that it draws the water directly ... pipes—the auction pipe to the barrel, a, and the force pipe to the barrel, —/. The operation is as follows:—A ...