220 



ACTUAL COSTS AND CAPACITY OF GASWORKS. 



where the principal water supply is needed. The water is 

 pumped into this tank through a i J-inch wrought-iron pipe, 

 from a brook 280 feet away. Capacity, 1,200 gallons. 

 Cost of above tanks and foundations, ^156. 



l-'ig. 24. Overhead Water Tank. 



Livesiy washer. Upon a concrete foundation, 9 inches 

 thick, is fixed a Livesey washer, with 9-inch connections, 

 valves, and by-pass main. The inside dimensions are 2 feet 

 6 inches by 4 feet by 2 feet 1 1 inches. It is so placed that 

 the liquor can be run from the base of the scrubber by 

 gravitation, the flow being regulated to suit the strength of 

 liquor required. Cost, including foundations, ,53. 



Tower scrubber. The scrubber is of cast-iron, 40 feet 

 high by 5 feet diameter. It is provided with 9-inch con- 

 nections, valves and by-pass. It was specified that the 

 side plates should be not less than f inch thick, with 

 faced flanges 3^ inches wide, bracketed between the bolt 

 holes, bolted together with f -inch bolts at 6-inch centres. 

 Manholes are provided in the first, third, fifth and eighth 

 tiers of the scrubber, each i foot 6 inches square. Each 

 plate has a neat ornamental moulding. A self-acting water 

 distributor is fixed at the top, with revolving spreader, and 

 tippler balanced to tipple two gallons of water at a time. 

 Above this is a wrought-iron tank, 4 feet diameter by 2 feet 

 deep, supported on three cast-iron columns, and fitted with 

 quadrant cock for delivering water to the tippler. Midway 

 up the scrubber is fixed an intermediate liquor distributor. 

 A wrought-iron ladder of strong design is attached for access 



