Henry C. Adams
Capitolo 64
the mill, but to the same duration it is practical
considerations that limit the height. In America a lot of towers
it is as much as 100 fts that tall workers, but to the agenda they don't do
voluntarily ports to such height, with the result that the
I twirl you/he/she is not properly lubricated. Approximately 40 ft is the usual height in
this country, and 60 fts should be used as a maximum.
The Mr. George Phelps, in a paper read by him in 1906 first the
Engineers' association in Water, determined that it was sure to
supposes for now that on an average a fifteen miles that wind was
available for eight hours per diem, and from this he gave the
following figures as representing the middle and approximate duty
with, an elevator of l00 ft, included the attrition:--
Table No 14
THE DUTY OF WINTDMILU
Diameter of Wheel.
10
12
14
16
18
20
25
30
35
40
The following table gives the result of tests brought out of
the Department of United States of the agriculture to Cheyenne, Wyo.,
with a l4 ft diameter mill to wind under different wind
speed:--
Table No 15.
The power or l4-rx Mill to wind In Different Winds.
The speed of Wind (miles for now).
0--5 6-10 11-15 16-20 21-25 26-30 31-35
It will be apparent from the preceding figures that practically
the whole ones to pump for a small jobs of sewerage can be done
from he/she wants to tell of a mill wind, but it is undesirable to count completely
on such system, even if two mills are erect so that the
plant will be in duplicate, because there is always the
possibility, even if can be remote of one lengthened period,
of calm, when sewage would accumulate; and, further, the
Local government Board would not approve the scheme unless it
included a motor, driven by gasoline you lubricate, or other mechanic
you motorize, for emergencies. In the case of provisioning of water the
difficulty can be old offering the great storage capacities,
but this cannot be done for sewage without creating a
intolerable bother. In the case according to the deposit it doesn't owe
is less less than the flow of dry time of twelve hours, neither more than