Report of a committee on a plan for cleansing the drains of Black Town.

Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: Report of a committee on a plan for cleansing the drains of Black Town. Source: Wellcome Collection.

    17/105 (page 9)
    MEMORANDUM OF THE APPARATUS REQUIRED FOR MAJOR BOULDERSON'S SCHEME. One 40 horse power steam engine adapted to a forcing pump and intended to raise sea water from a few feet beneath its own level to a total height of 40 feet above the canal level at the rate of about 8 cubic feet per second; and also by a separate Mechanism, worked within the same building [to be con- structed to suit the engine and apparatus*] to work a bailing scoop, or other pump suited to lift sewage to a height varying at different times from 4 to 12 feet, or if it can be done without inconvenience from 4 to 20 feet at the rate of 2£ cubic feet per second. The height of 12 feet has been taken in estimat- ing the power of the engine (working night and day) at 40 horses, if a greater height can be conveniently arranged as the lift, a slight addition to the horse power may be allowed for, if thought necessary. In addition to the steam engine, pumping and lifting apparatus, there will be required the following pipes : 1000 feet of 8 inch pipe with one junction piece carrying on each side a branch service pipe of 3 inch drain, a few inches long, furnished with turn cock. 1500 feet 12 inch do. with 3 *-; •' 3000 feet 14 inch do. with 6 1400 feet 15 inch do. with 2 1500 feet 16 inch do. with 2 2800 feet 17 inch do. with 4 1200 feet 19 inch do. with 2 4500 feet 20 inch do. with 0 1200 feet 21 inch do. with 2 1000 feet 22 inch do. with 2 1000 feet 23 inch do. with 2 1000 feet 24 inch do. with 2 2500 feet 25 inch do. with 0 2 sluice cocks for pipes 25 inch drain. 1 do. do. do. 20 do. do. 1 do. do. do. 24 do. do. 1 do. do. do. 17 do. do. 2 do. do. do. 8 do. do. All these pipes of whatever material composed ought to be capable of standing on hydraulic pressure of 50 or 60 feet. * NoTK-Such as that designed by Mr. W. F. and described in Mr. Wcales' rudi- mentary treaties on the drainage of districts and lands, page 72. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. do. ALSO.