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Transcription
88
Gravel roads.
Gravel should be screened
as to secure free dirt-
bottoms.
At new embankments
elevators,
rotary screen
bines,
small dump cars.
The binder + steam roller
make it possible to use
more run 2½ in. long.
I more rocks generally than
1½ in. screen are likely to be
after than 2½ in. screen, the
former should be used for
break larger & catch partly.
3 screens = ½ in. + two,
20% screenings necessary to
act as binders.
Surface tension draws the binding,
dust is necessary for this
binding along with water
capillary action.
89
Sprinkling is necessary for
binding.
3''
[illegible]
1¾ 1½'' 3½'' 8 ft. 17½''
bines for ready handling while
and special binding.
Sprinkling of screenings.
1 washing x 15 w/ with rotary
screen $ 1000
Portable bins
200
1 15 H D Perseus 200
1 20 H P Roller 600
12 wheel scraper 600
12 large steam dumpers 2100
2 steam graders 700
2 steam drills 500
1 15 H D drill for drills 400
water steam pipes 300
2 sprinkling wagons 500
1 19 ton steam dolly 2300
Total $ 6900