392 



TRANSACTIONS OF THE 



WORK PERFORMED BY THE FOLLOWING 



MINES. 



and the 

 diameter 

 of the cylinder. 



Load 

 in 



horse 

 power, 

 on the 

 piston. 



Load 

 per 

 square 



inch, 

 on the 

 piijton. 



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. 



Consolidat- 

 ed Mines 



Davey's 

 engine, 

 80 inches, 

 single. 



356,2 



lbs. 

 10,63 



feet 

 11,33 



1 

 9 

 1 



1 

 1 

 8 

 2 

 1 



8 

 1 

 1 



1 

 6 

 1 

 1 

 1 



5 

 1 

 1 



fms ft 



4 4 

 225 4 

 44 



ins. 



14 

 12 

 101 



ditto 



2329 



Ditto 



Pearce's 

 engine, 

 65 inches, 

 single. 



351,7 



15,9 



9 



9 0 

 1 2 

 199 2 

 37 4 

 7 1 



12 

 11 



111 



11 



7 



ditto 



1086 



Ditto 



Woolf's 

 engine, 

 90 inches, 

 single. 



474,1 



11,18 



10 



233 2 

 9 5 

 70 



14 



8 

 5 



ditto 



3321 



Ditto 



Bawden's 

 engine, 



90 inches, 

 single. 



351,1 



8,28 



10 



15 3 

 159 1 

 23 0 

 11 2 

 10 1 



12 ) 

 Id] 



13 ) 

 12 } 

 10 ) 



ditto 



3325 



Ditto 



Shears's 

 engine, 

 65 inches, 

 single. 



282,2 



12,7 



6 



9 



136 0 

 12 0 

 11 3 



13 

 11 



6 



ditto 



1088 



United 

 Mines 



Cardozo's 

 engine, 



90 inches, 

 single. 



468,2 



11,04 



9 



. 2 

 3 

 3 



1 

 1 



26 3 

 74 5 

 74 5 



10 

 16 

 15 



ditto 



2330 



Ditto 



Little 

 engine, 

 30 inches, 

 single. 



84,6 



17,96 



9 



5 1 

 34 1 



12 

 14 



ditto 



634 



