Three; groupings of three as in three notes sounded simultaneously or in rapid succession as in a musical triplet (chord). See Thirds
Keely
"The working part of this device consists, first, of an outside ring carrying on its inside face nine pieces - equidistant from each other - called polar accelerators; which constitute the polar field or polar circuit. Second, another ring of less diameter, situated inside of the larger ring, and carrying on its face eight disks, with a triple grouping in each, representing the depolar field, or field of high polar interference." [See Apergy - Power Without Cost], [The Operation of the Vibratory Circuit]
See Also
4.1 - Triple Vectors
4.2 - Triple Vectors and Rotation
4.5 - Triple Rotary or Vortex Motions
4.9 - Triple Contractive Motions
7B.04 - Triplets Form Larger Units of Unity
7B.05 - Rotating Triplets
13.06 - Triple Currents of Electricity
13.11 - Triple Currents and Streams
14.35 - Teslas 3 6 and 9
14.35.1 - Keely 3 6 and 9
14.36 - Triple Equations
16.29 - Triple Currents of Electricity
atomic triplet
Figure 2.10 - Triple Dual Vectors - In Rotary Motion
Figure 4.1 - Triple Cardinal Directions Vectors or Dimensions
Figure 4.13 - Triplet Originations and Centralizations of Matter
Figure 4.14 - Feynmans Triplet Structures of the Proton and Neutron
Figure 4.3 - Single Mode Electric Vector Generating Circular Motion also Shown within Triple Vectors
Figure 4.4 - Triple Vectors in Orthogonal Motions
Figure 4.6 - Triple Vectors in Motion on Triple Planes
Figure 4.7 - Triple Planes and Polar Vectors of Motion
Figure 4.8 - Triple Polar Rotations In and Out
Figure 6.14 - Triple Three Cubes
Figure 6.4 - Triple Interior Planes
Figure 6.5 - Triple Planes - May Underlay some Sacred Geometry or Religious Concepts
Figure 6.6 - Russells Multiple Views of Tripleness
Figure 7.3 - Step 3 - Sphere Forms Orthogonally Triple Compressing Shell Layers
Figure 7B.05 - Triplet Forming a Unity
Figure 7B.06 - Rotating Triplets Animation
Figure 7B.09 - Feynmans Triplet Structure of Photon
Figure 7B.15 - Triple Planes relative to Center
Figure 9.8 - Triple Centers
Figure 13.08 - Triple Streams of Electricity
Figure 14.03 - A section from one of Keelys charts showing his generous use of Triplets
Figure 14.12 - Triple Equations to Represent a Single Sympathetic Event
Figure 16.09 - Triple Streams of Electricity
Table 13.02 - Vibratory and Oscillatory Triple Force Functions
Trexar
Triple Triplet Flows
Triplet
Triplet Attraction
Triplet Rotation