Side
af
764
Forrige
Næste
272
Molesworth's pocket-book
Areas of Sewers. (C. E. Hawkins.)
roportron of height to extreme width inside 3; 2.
(R + T). 41 K ’ area of brlckwork = 0 • 9275 T
Table.
Size of
Sewer.
Inches.
Area of
Sewer.
Sq. Ft.
I Cube Yards of I
I Brickwork I
per Yard Run.
4| in.
Work.
Work.
Size of
, Sewer.
Inches.
Area of
Sewer.
Sq. J’t.
Cube Yards of
Brickwork
per Yard Run.
12X18
UX2I
1-150/
. 1-565
16X24 2-044
18X2? 2-587I
20X30
22X33
2-1X36
26X39
! 28X42
30X45
32X48
34X51
9 in.
Work.
13f in.
Work.
•214
•242
•269
•297
•324
•352
•379
•407
' 3-191!
3'8651
4-600
5’400j ttu,
6-2611 -434
7-187J -462
8’178 -490
9-2321 -517
'545
, 572
12-7781 -600
36X54 _
38X57 11-532,1
40X60
10-350
42 x SajH-Wrt 1-353
582 ÆA. xz an i k . a t-1 . . _ _
. köo a a ' U0‘|l’o53
$E? f4X 66 15’461 1'408
637 ■ 4bX 69 16-8981 l-4«3
•692 148X 72 18-400 1-518
•747 50X 15 19-965 1-573
'802 52x 78 91 • sa.i I-1
•802 52X
’85* 54X
•912 56x
•967 58 X
1'022 60X
1-011 62x
1'132 64 X
1-1QO nz. . .
78 21-594 1-628
81 23-28? 1-683
84,25'044 1-738
87 26-865 1-793
90 28’750, l-»48-
93 30*6991 1-903
,.,aQ - 96,32-m 1-958
1 188 66X 99 34-788 2-014
J.000 ^8X102 36-928! 2-0G9
1 298 : 70X105 39 132? 2’124
I ^2X108,41 4001 2-179
2'176
2-259
2-342
2-507
2’589
2-672
2’755
2’837
2-920
3'002
3-085
3-168
3-250
3-333
3-415