Pitch of teeth in inches.

Thickness of teeth in inches.

Breadth of teeth in inches.

Strength of teeth in horse-power at

3 feet per second.

4 feet per second.

6 feet per second.

8 feet per second.

3.99

1.9

7.6

20.57

27.43

41.14

54.85

3.78

1.8

7.2

17.49

23.32

34.98

46.64

3.57

1.7

6.8

14.73

19.65

29.46

39.28

3.36

1.6

6.4

12.28

16.38

24.56

32.74

3.15

1.5

6.

10.12

13.50

20.24

26.98

2.94

1.4

5.6

8.22

10.97

16.44

21.92

2.73

1.3

5.2

6.58

8.78

13.16

17.54

2.52

1.2

4.8

5.18

6.91

10.36

13.81

2.31

1.1

4.4

3 99

5.32

7.98

10.04

2.1

1.0

4.

3.00

4.00

6.00

8.00

1.89

.9

3.6

2.18

2.91

4.36

5.81

1.68

.8

3.2

1.53

2 04

•06

3.08

1.47

.7

2.8

1.027

1.37

2.04

2.72

1.26

.6

2.4

.64

.86

1.38

1.84

1.05

.5

2.

.375

•50

•75

1.00