394 



TRANSACTIONS OF THE 



WORK PERFORMED BY THE FOLLOWING 



MINES. 

 



iliJNtxlJNJi/, 



and the 

 diameter 

 of the cylinder- 



Load 

 in 



horse 

 power, 

 on the 

 piston. 



Load 

 per 

 square 



inch, 

 on the 

 Distori. 



Length 

 of the 

 stroke, 

 in the 

 cylin- 

 der. 



No. 



of 

 lifts. 



Depth. 



Diam- 

 eter of 



the 

 pump. 



Time. 



Con- 

 sump- 

 tion of 

 coal in 



els. 



Wheal 

 Beauchamp 



Western 

 engine, 

 36 inches, 

 single. 



109,5 



lbs. 

 16,14 



feet 

 7,75 



1 

 1 

 1 

 1 

 1 



2 

 1 

 1 



fms ft 

 32 3 

 21 1 

 21 1 

 21 1 

 10 3 

 23 0 

 12 3 

 9 0 



ins. 

 8 1 

 11 



10 \ 

 ^ \ 



Sep 1 



to 

 Sep 30 



602 













4iS 







Ditto 



Powning's 

 engine, 



36 inches, 

 single. 



58,3 



8,6 



8 



1 



2 



21 3 

 31 4 



O 0 



10 



fil 



ditto 



406 



POLGOOTH 



66 inches, 

 single. 



202,9 

 - 



8,9 

 " 



9,8 



1 

 1 

 1 



30 3 

 18 3 

 18 3 



20 

 18 



Sep 5 



to 

 Oct 4 



1078 



Pembroke 

 (Old Mine) 



New 

 engine, 

 50 inches, 

 single. 



93,5 



7,15 



9 



1 

 1 



32 1 

 11 0 



15 

 12 



Sep 5 



to 

 Oct 3 



545 





Edg- 



cumbe's 



lit), 4 



13,9 



y 



o 



1 



30 0 



Q 



O 



12 



UlllO 



uou 



Ditto 



engine, 

 40 inches, 

 single. 



2 

 1 



44 0 

 11 4 



9 



' 4 





Hudson's 









1 

 3 

 1 



6 0 

 101 4 

 12 2 



13 

 18 

 14 







East 

 Crinnis 



engine, 

 76 inches, 

 single. 



347,7 



11,5 



10,33 



ditto 



1808 





Rundle's 











57 1 



42 4 









Ditto 



engine, 

 41 inches, 

 single. 



164,4 



18,69 



9,3 



2 

 2 



14 

 10 



ditto 



562 



FOWEY 



Consols 



Austen's 

 engine, 



80 inches, 

 single. 



283,1 



8,45 



10,3 



3 

 1 



97 2 

 12 3 



15 

 10 



Sep 4 



to 

 Oct 3 



1 



598 



