390 



TRANSACTIONS OF THE 



WORK PERFORMED BY THE FOLLOWING 



MINES. 



ENGINE, 

 and the 

 diameter 

 of tire cylinder. 



Load 

 in 



horse 

 power, 

 on the 

 piston. 



Load 



per 

 square 



inch, 

 on the 

 piston. 



Length 

 of the 



stroke, 

 in the 

 cylin- 

 der. 



No. 



of 

 lifts. 



Depth. 



Diam- 

 eter of 



the 

 pump. 



Time. 



Con- 

 sump- 

 tion of 

 coal in 

 bush- 

 els. 



BiNNER 



Downs 



Gregor's 

 engine, 

 42 inches, 

 single. 



160,7 



lbs. 

 17,4 



feet 

 9 



1 



X 



1 

 1 

 1 

 1 



2 



fms ft 



3 0 

 43 3 

 27 2 

 32 0 

 17 o 

 41 3 



ins. 



yj 



n 



in I 



11 ( 



75. 



' 8 



A 1 1 

 64 J 



7 



ditto 



1457 



Ditto 



Wh. Penny 

 engine, 



24 inches, 

 single. 



54,2 



18 



5,25 



2 



39 5 



10 



ditto 



597 



Wheal 

 Darlington 



80 inches, 

 single. 



376,9 



11,25 



10 



3 

 3 



65 5 

 75 0 



19 

 12 



Aug 23 



to 

 Sep 23 



2210 



Marazion 

 Mines 



Powlet's 

 engine, 

 60 inches, 

 single. 



238,6 



12,66 



9 



1 

 1 

 1 

 1 

 1 



30 0 

 29 0 

 40 4 

 40 4 

 20 4 



8 

 121- 

 13 



7 

 15 



ditto 



1172 



St Ives 

 Consols 



36 inches, 

 single. 



113 



16,67 



7 



2 

 1 



40 0 

 18 0 



04: 



8 



6 



A -irv 9*^ 



Aug /^O 



to 

 Sep 23 



498 



Wh. Reeth 



36 inches, 

 single. 



105,1 



15,5 



7,5 



3 

 1 

 1 



5 



89 0 

 10 3 

 30 0 

 110 0 



8 ) 

 6 } 

 5 ) 

 4 



ditto 



681 



Consolidat- 

 ed Mines 



Taylor's 

 engine, 

 85 inches, 

 single. 



436,5 



11,36 



10,33 



1 



6 

 2 

 1 



10 2 

 193 0 



25 5 



11 3 



15 

 13 

 17 

 5 



Sep 2 



to 

 Oct 1 



2703 



