Part 5 (2/2)

TABLE No 13

WIND LESS THAN 6 MPH

-----------+-------------+------------+--------+---------------------------------- Ref No | Total No | Days on | | Rainfall on each from Table | of days in | which no | Rainy | rainy day in No 11 | each year | rain fell | days | inches

-----------+-------------+------------+--------+---------------------------------- 1 | 16 | 14 | 2 | 63 and 245 2 | 15 | 13 | 2 | 02 and 02 3 | 39 | 34 | 5 | 025, 01, 26, 02 and 03 4 | 36 | 29 | 7 | / 02, 08, 135, 10, 345, 18 | | | | and 02 5 | 34 | 28 | 6 | 10, 43, 01, 07, 175 and 07 6 | 32 | 27 | 5 | 10, 11, 085, 04 and 135 7 | 33 | 21 | 2 | 415 and 70 8 | 46 | 40 | 6 | 07, 035, 02, 06, 13 and 02 9 | 26 | 20 | 6 | 145, 20, 33, 125, 015 & 075 10 | 37 | 30 | 7 | / 03, 23, 165, 02, 095 | | | | 045 and 02 -----------+-------------+------------+--------+---------------------------------- Total | 314 | 266 | 48 | Average rainfall on each of | | | | the 48 days = 13 in

The greater the height of the tohich carries the reater will be the amount of effective wind obtained to drive the mill, but at the same tiht In Ah, but ordinary workht, with the result that the ht in this country, and 60 ft should be used as a e Phelps, in a paper read by hiineers, stated that it was safe to assue a fifteen ht hours per day, and fro the approxi friction:--

TABLE NO 14 DUTY OF WINTDMILU

Diameter of Wheel

10

12

14

16

18

20

25

30

35

40

The following table gives the result of tests carried out by the United States Departriculture at Cheyenne, Wyo, with a l4 ft dia wind velocities:--

TABLE No 15

POWER or l4-rx WINDMILL IN VARYING WINDS

Velocity of Wind (miles per hour)

0--5 6-10 11-15 16-20 21-25 26-30 31-35