44 ENGINE FOR RAISING AND LOWERING WEIGHTS. 



VIII. 



Defcription of an Engine for raifing and lowering Weights by the 

 Aftion of a Column of Water and for other purpofes. By Jo h n 

 Harriott, Efq. 



To Mr. NICHOLSON, 

 Dear SIR, 



I 



SEND the drawings and descriptions of my fyphon engine, 

 which from its power and great convenience in actual prac- 

 tice, will I prefume be thought a fit fubjeci for your valuable 

 publication. 

 Engine afting A A. In Fig. 1 and 2, is a cylinder with a moving pifton 



™Lr la?n Z °l therein > 0f Which D is the P ift0n r0d - 



tematcly on the B and C. Are water ways through which the water is ad- 



upper and under m ; tted to communicate with both fides of the pifton. 



lurface of a 



pifton, as di- E F. A pipe in Fig. 1, through which water defcends from 

 retted by turn- a refervoir above, into a three way cock M. and in Fig. 2, is 

 a pipe through which any ftream or head of water runs to the 

 three way valve in the ciftern M. 



C H. Is a pipe in both, communicating from the three way 

 cock, or valve, to the upper part of the cylinder. 



K B. Is a pipe communicating from the fame cock or valve, 

 to the lower part of the cylinder. 



II. Is a pipe communicating between the two laft men- 

 tioned pipes, confequently between the upper and lower fpaces 

 of the cylinder, which communication can be either cut off or 

 opened to any requifite degree by the cock L. 



N. Is a pipe in which a lower column of water is fufpended 



by the reaction of the atmofphere, and confequently a power 



to the upper column, or fall in proportion to its length or 



depth, not exceeding the weight of the atmofphere. 



The column The nature and principle of the fyphon engine confifts in 



of n an ft a S a P uan y combining the power of the fyphon with the direft preflure of 



prefling mafs a column or ftream of water, fo that they may act together. 



and partly of a j t wor ks by means of the fyphon conftantly acting in concert 



tion, which with the feeding ftream of water, fo that each alternately act 



renders the at- on the upper and lower part of a pifton, within a cylinder as 



on°thc e machi- VC * fc were, reverfing the fyphon at each change ; and the power 



nery. is ecmai to a column of water of the fame diameter as that of 



the 



