| BORE OF TUBE. | PRICE PER FOOT. | ||||
|---|---|---|---|---|---|
| £ | s. | d. | |||
| 3-eighths of an inch | copper tubes | 0 | 4 | 1⁄2 | |
| Half ditto | ditto | 0 | 6 | ||
| 5-eighths ditto | ditto | 0 | 9 | ||
| 3-quarters ditto | ditto | 0 | 11 | 1⁄2 | |
| 7-eighths ditto | ditto | 1 | 4 | ||
| 1 inch | ditto | 1 | 8 | ||
| 1 and a half ditto | ditto | 2 | 2 | ||
| Union joints 3-eighths of an inch 8s. half an inch9s. 5-eighths of an inch 10s. 6d. 3-quarters of an inch | 0 | 14 | 0 | per doz. | |
| Union T sockets, 3-quarters of an inch 20s. half inch | 0 | 14 | 0 | per doz. | |
| Three-quarters of an inch main cocks | 0 | 4 | 6 | each | |
Brazed sheet iron Tubes.
| BORE OF TUBE. | PRICE PER FOOT. | ||
|---|---|---|---|
| s. | d. | ||
| 3-eighths of an inch | 0 | 3 | 3⁄4 |
| Half an inch | 0 | 4 | 1⁄4 |
| 5-eighths of an inch | 0 | 5 | |
| 3-quarters | 0 | 6 | 1⁄2 |
| 1 inch | 0 | 7 | 1⁄2 |
| 1 and a quarter | 0 | 10 | |
| 1 and a half | 1 | 3 | |
| £. | s. | d. | ||
|---|---|---|---|---|
| Ornamental gas lamp posts, and columns, fitted complete with York lamps glazed, tube, branches,cocks, and burners, ready for lighting | £. 6 | 6 | 0 | each |
| Or castings for ditto | 13 | 0 | cwt. | |
| Wrought iron work for ditto | 0 | 7 | 1⁄2 ℔. | |
| Argand burners complete, from 2s. 6d. to | 5 | 0 | each | |
| Iron roofs for retort and gas holder houses, erected complete, at £. 6 6 0 per square of 100 feet,superficial measure. | ||||
Cost of laying cast iron Gas mains in London. To take up the ground, to fill in, but not to re-pave the ground, and to drive two and a half inches of lead into the joints of the pipes.
| DIAMETER OF MAINS. | PER YARD. | |
|---|---|---|
| s. | d. | |
| 3 inches | 1 | 6 |
| 4 ditto | 1 | 10 |
| 5 ditto | 2 | 1 |
| 6 ditto | 2 | 2 |
| 7 ditto | 2 | 4 |
| 8 ditto | 2 | 7 |
| 9 ditto | 3 | 0 |
| 10 ditto | 3 | 4 |
| £. | s. | d. | ||
|---|---|---|---|---|
| Tapping the mains and laying gun barrel, or branch pipes | 0 | 1 | 0 | per yrd. |
| Governor complete to regulate every 24 hours 30,000 cubic feet of gas | 60 | 0 | 0 | |
| A lime machine, new construction, to purify 30,000 cubic feet of gas every 24 hours | 220 | 0 | 0 | |
| A gas metre, to register 30,000 cubic feet of gas every 24 hours | 105 | 0 | 0 | |
| A gas light apparatus complete, capable of producing 48,000 cubic feet of gas every 24 hours, costs,if erected in London | 8000 | 0 | 0 |
ESTIMATE
OF
A Gas Light Apparatus,
Capable of producing every 24 hours, a light equal to 21,330 tallow candles, eight in the pound, burning for six hours.
| £. | s. | d. | |
|---|---|---|---|
| Five horizontal rotary retorts, 12 feet 6 inches in diameter, complete for immediate use | 2320 | 0 | 0 |
| Two lime machines, complete for immediate use | 536 | 0 | 0 |
| Two collapsing gas holders, 30,000 cubic feet capacity each | 2000 | 0 | 0 |
| A gas metre | 200 | 0 | 0 |
| A governor or regulating guage | 100 | 0 | 0 |
| Tar well | 58 | 0 | 0 |
| Pumps | 67 | 0 | 0 |
| Connecting pipes | 265 | 0 | 0 |
| Condensing pipes, between the retorts, tar well, and lime machines | 219 | 16 | 0 |
| Retort house, with iron roof | 653 | 19 | 0 |
| Lime machine house, with ditto ditto | 230 | 0 | 0 |
| Workmen’s tools and sundries | 430 | 0 | 0 |
| £. 7079 | 15 | 0 |
This apparatus is capable of producing every 24 hours, 66,000 cubic feet of gas.