FORCING PUMP 



COMMON THINGS. 



PUMPS. 



1. Earliest methods of raising water. 2. Bucket in a well. 3. By 

 windlass and rope. 4. By two buckets balanced over a pulley. 

 5. Method of working these by animal power. 6. The rope in this 

 case balances itself. 7. The lifting pump. 8. Double lifting pump 

 worked by animal power. 9. Various forms of valves. 10. Clack 

 valves. 11. Conical spindle valves. 12. Ball valves. 13. The 

 suction pump. 14. Analysis of its action. 15. Forcing pump. 

 16. Same with air vessel. 17. Same with solid plunger. 18. 

 Double action forcing pump. 19. Garden watering pumps. 20. 

 Fire-engine. 21. Chain pump. 22. Drainage of mines. 



1. As water is one of the most universal necessaries of life, and 

 abundant as it is in nature, is not always found in the localities 

 where circumstances oblige us to fix our habitations, expedients 

 by which it can be obtained in sufficient quantity, and of the 



LARDNER'S MUSEUM OP SCIENCE. N 177 



No. 60. 



