I L LU ST RAT E D S OU RC E 8 0 0 K of ME C HAN I CAL C OM I’ 0 N E N T S
SECTION 30
NOMOGRAMS
30-2
Arc Length Versus Central Angle
30-3
Chordal Height and length of Chord
30-4
Forces in Toggle Joint with Equal Arms
30-5
Radical Defections of Rotating Disks
30-6
Power Capacity of Spur Gears
30-7
Alignment Chart for Face Gears
30- 10
Linear to Angular Conversion of Gear-Tooth Index Error
30-12
Determine Parallel Axis Moment of Inertia
30- 13
Moment of Inertia of a Prism about the Axis aa
30- 1 5
Chart for Transferring Moment of Inertia
30- 16
Rotary Motion
30- 1 7
Accelerated linear Motion
30- 1 8
Theoretical Capacity of Gear Pumps & Motors
30- 19
Nomogram for Piston Pumps
30-20
Weight and Volume
30-2 1
Volumes of Spherical Segments
30-22
Volumes in Horizontal Round Tanks with Flat Ends
30-23
Another Shortcut to Torsion-Bar Design
30-24
Nomogram for Angles in Constructed Shapes
30-2
Nomogram for Angles
in Constructed Shares
H. F. Bariffi
FROM THE ALTITUDE, h, and the dif-
ing the Sb-scale at 22 in. Also, con-
ferences
(a-d)
and
(b-6)
in
necting 25 in. on the outer right hand
lengths of corresponding sides of up-
(b-c)-scale
and 17 in. on the h-scale
per and lower bases, the dihedral
given value of ( a d ) on the inner
gives a line crossing the S.-scale at
angle A can be calculated.
left hand scale. Connect the inter-
21.1 in. A line connecting 21.1 in,
To calculate Sa connect the given
section of this line and the diagonal
on the inner right hand S. scale with
value of (a-d)
on the right hand T-line with the (b--r)-scale.
Project
22 in. on the diagonal s b scale inter-
outer scale with the value of h on the
this line to the left hand scale and
sects the Q-line at the indicated point.
h-scale and read the value of S,.
In
read the angle A.
A line connecting this oint with 28
like manner, the vaIue of S. can be
in. on the inner left [and
( a d ) -
calculated from (6--c)
and h. Con- EXAMPLE: When h = 17 in., (6-c)
scale crosses the dia