an**

)WI*

kP

th 6

ling

ie!'

de-

s

r 5

A'i 1

rl>

j- 30 * These Calculations are but for common Prac-ZcV ^° r ^ ar g e Boilers the Piston Will make 20 or

a nd t L°' Ces Minute, and each of them 7 or 8 Feet,

t ' len a Pump of 9 Inches Bore will discharge morej. 320 Hogsheads per Hour, and for other Sixes pro-pos’ 0nabl >'- The Use of the Table is easy; for fup-t L e ‘ r required to draw 150 Hogiheads per Hour; atthe 9 ° Tards ; theft in the 7th Column I find

j Unj Ileare ft N umber 149, and against it, in the first Co-the r? ^ a 7 I rich Bore for the Pump ; then underfind 9 ° on t ^ ie Right-Hand, in the fame Line; Ithe p ^ ^riches for the Diameter of the Cylinder fit forUr pofe, and so for any other.