File:Sanitary engineering - a guide to the construction of works of sewerage and house drainage, with tables for facilitating the calculations of the engineer (1878) (14579227548).jpg

Identifier: sanitaryengineer00lath (find matches)
Title: Sanitary engineering : a guide to the construction of works of sewerage and house drainage, with tables for facilitating the calculations of the engineer
Year: 1878 (1870s)
Authors: Latham, Baldwin, d. 1917
Subjects: Sewerage Sewage Drainage, Sanitary
Publisher: London New York : E. & F.N. Spon
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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-97 591 72 19i 434 80 21i 513 21 23; 595 85 1-61 437 17 1-80 516 80 1-98 596 23 19f 439 04 21f 517 69 23f 600 56 1-62 441 25 1-81 521 11 1-99 600 75 19; 443 30 21f 522 19 2-00 24 605 28 1-63 445 34 1-82 525 44 25 643 50 19f 447 57 21f 526 70 26 682 50 1-64 449 45 1-83 529 77 2-25 27 722 25 19; 451 85 22 531 22 28 762 75 1-65 453 56 1-84 534 12 29 803 97 19; 456 15 22i 535 76 2-50 30 845 91 1-66 457 69 1-85 538 48 31 888 56 20 460 46 22i 540 31 32 931 90 1-67 461 83 1-86 542 85 2-75 33 975 92 20; 464 78 22f 544 87 34 1020 62 1-68 465 99 1-87 547 24 35 1065 98 20; 469-12 22i 549-44 3-00 36 1111-98 To finddischargof weir. To find the discharge from a weir, multiply thequantity corresponding to the depth falling over, asgiven in the Table, by the width of the weir in feetand parts of feet, and the result will give the dischargein cube feet per minute. Note.—To bring cube feet per minute into gallons in twenty-fourhours, multiply by 9000. / BALDWIN LATHAMS SANITARY ENGINEERING PLATE NV U
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( 163 ) CHAPTER XV. > COURSE OF SEWERS. When the natural drainage area of the district has been Natural anddefined, it will be well to ascertain what nature has done ^ramase.for the drainage, and also what has already been done byart in the way of accomplishing the work of sewerage ofthe district. The main lines of sewers will generallytake the direction of the natural drainage valleys. Such Direction ofdrainage valleys will also give the lines in which the sewers.storm-water overflows will have to be constructed. Theordinary sewers of a district are now usually laid inperfectly straight lines, having manholes at every point Sewers to beof lateral deviation ; and manholes, lampholes, or venti- y^™% ia§1lators at every point of vertical deviation or change ofgradient. By constructing a system of sewers in straightlines, and with the introduction of numerous manholes Useofman-and lampholes, the whole system is brought under per- h°j^cin ampfeet control, and can be examined at any

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