GASOMETERS. 141 



Tons, Cwt. Qrs. Ibs. 



Brought forward - 72 19 11 



100, 1-inch bolts, and 100, ditto - 0328 



100, 4-bolts - 0024 



50 Principal bars for roof 11 1? 1 23 



50 Secondary bars 3 16 2 2 



50 Tie-rods for principal 4 1 7 3 2 



1 Bag of bolts - 1 17 

 200 Diagonal stays for roof > 1 11 3 26 



72 Cast-iron brackets for vertical stays - - 015 216 

 24 Timbers for middle, curb, and king-post - 1028 

 48 Tie-rods and bolts for ditto 12 24 

 12 Cast-iron carriages, rollers and bolts, com- 

 plete - 2620 

 4 Pigs of lead for ditto- - 0300 



2 Extra man-holes, plates and rings, over 18- 

 inch pipes - - - - - - 003 16 



Tons - - 100 6 3 17 



24 Brackets for guide-rods - 2 2 16 



24 Lock-nuts for bottom of guide-rods - 05016 



24 Guide-rods, each 6, 3, 20 - 9308 



12 Sets of tripods, each 8, 13, 3, 1 - - 104 5 12 



528, 1-inch bolts for ditto - - - - 18 3 12 



Tons - - 116 14 1 8 



The following is the weight of a gasometer 50 feet diameter and 18 feet deep, 

 containing 35,300 cubic feet. Top, No. 14 wire-gauge; sides, No. 15 ditto: 



Tons. Cwt. Qrs. Ifes. 



Ironwork of gasometer - - 10 14 2 27 



Wood-curb and diagonal stays, bolts, etc. - - 1 19 

 Sundry bolts, man-hole, etc. - - - - 0500 



Tons - - 12 18 2 27 



5 Sets of tripods - ----10 61 17 



5 Guide-rods -----101 12 



Tons - - 11 6 3 1 



