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Description of the Process of Manufacturing Coal Gas

by Friedrich Christian Accum

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London Price List

Of the most essential articles employed in the manufacture and application of Coal Gas; delivered free of expence at any Wharf between London and Vauxhall Bridge.

Cast Iron Spigot and Faucit Pipes

DIAMETER.THICKNESS IN THE METAL.PRICE
PER YARD.
£.s.d.
1 and a half inch5-sixths of an inch26
2 inches3-eighths36
2 and a half dittoditto40
3 inches7-sixteenths46
4 dittohalf an inch66
5 dittoditto90
6 dittoditto100
7 dittoditto110
8 ditto5-eighths123
9 dittoditto166
10 dittoditto196

Cast Iron Flanch Pipes

1 and a half inch30
2 inches40
2 and a half inch410
3 inches54
4 ditto73
5 ditto96
Quadrant flanch pipes140cwt.
Bend pipes of different radii, branch pipes and accommodating pipes130cwt.
From eight to six inches 13s. 6d. from 5 to 3 inches140
Two, and 1 and a half inch146
Siphon, water reservoir, or tar-well pipes, from 2 to 6 inches in diameter150cwt.
Ditto, above 6 inches in diameter140
Gas holder, or hydraulic valve pipes, with boxes150
Wrought iron work and screws to ditto071⁄2 ℔
Retorts of best picked iron, from second process130cwt.
Mouth pieces to ditto, ground and fitted200
Wrought iron work and screws to ditto071⁄2 ℔
Connecting and stride pipes, ground200cwt.
Hydraulic cylinders150
Tapering pipes150
Outer fire doors150
Inner ditto110
Fire back, bearers, dead plates110
Top, register, and slide dampers140
Pullies, and friction sectors, turned and fitted220
Wrought iron gudgeons for ditto, turned and fitted10℔.
One inch bolts-at0051⁄2 ℔.
Seven-eighths ditto
Three-quarters ditto
Five-eighths280gross.
Half-inch1180gross.
Tar receivers and purifying vessels0140cwt.
Condensing pipes, and inlet and outlet pipes for tanks0140
Cast iron tanks put together complete, with bolts, screws, cement, &c.0160
Gas holders, original construction, erected complete of sheet iron0600
Gas holder, collapsing construction, complete, capacity 30,000 cubic feet100000
Gas holder, collapsing construction, complete, capacity 15,000 cubic feet70000
Gas holder, collapsing construction, complete, capacity 22,000 cubic feet80000

Wrought iron Gas Tubes screwed and fitted, warranted to bear a pressure equal to a column of water 300 feet high.

BORE.PENCE
PER FOOT.
1 inch10
7-eighths8
3-quarters71⁄2
5-eighths7
Half an inch and 3-eighths61⁄2

Copper Tubes

BORE OF TUBE.PRICE PER FOOT.
£s.d.
3-eighths of an inchcopper tubes041⁄2
Half dittoditto06
5-eighths dittoditto09
3-quarters dittoditto0111⁄2
7-eighths dittoditto14
1 inchditto18
1 and a half dittoditto22
Union joints 3-eighths of an inch 8s. half an inch 9s. 5-eighths of an inch 10s. 6d. 3-quarters of an inch0140per doz.
Union T sockets, 3-quarters of an inch 20s. half inch0140per doz.
Three-quarters of an inch main cocks046each

Brazed Sheet Iron Tubes

BORE OF TUBE.PRICE
PER FOOT.
s.d.
3-eighths of an inch033⁄4
Half an inch041⁄4
5-eighths of an inch05
3-quarters061⁄2
1 inch071⁄2
1 and a quarter010
1 and a half13
£.s.d.
Ornamental gas lamp posts, and columns, fitted complete with York lamps glazed, tube, branches, cocks, and burners, ready for lighting£. 660each
Or castings for ditto130cwt.
Wrought iron work for ditto071⁄2 ℔.
Argand burners complete, from 2s. 6d. to50each
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 inches16
4 ditto110
5 ditto21
6 ditto22
7 ditto24
8 ditto27
9 ditto30
10 ditto34
£.s.d.
Tapping the mains and laying gun barrel, or branch pipes010per yrd.
Governor complete to regulate every 24 hours 30,000 cubic feet of gas6000
A lime machine, new construction, to purify 30,000 cubic feet of gas every 24 hours22000
A gas metre, to register 30,000 cubic feet of gas every 24 hours10500
A gas light apparatus complete, capable of producing 48,000 cubic feet of gas every 24 hours, costs, if erected in London800000

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 use232000
Two lime machines, complete for immediate use53600
Two collapsing gas holders, 30,000 cubic feet capacity each200000
A gas metre20000
A governor or regulating guage10000
Tar well5800
Pumps6700
Connecting pipes26500
Condensing pipes, between the retorts, tar well, and lime machines219160
Retort house, with iron roof653190
Lime machine house, with ditto ditto23000
Workmen’s tools and sundries43000
£. 7079150

This apparatus is capable of producing every 24 hours, 66,000 cubic feet of gas.

The End

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