Now back to 20B - When Needle R
completes 20 revolutions and comes back to its original Vertical
position. Now Needle B is on 8B of the Dial of the Distance Piece. It means when
the Needle B is on 8 it is 0B + 8B = 8B, also it could be __12B + 8B = 20B,
(See Pg.37) __

The Equatorial revolution takes
us forward to between 21 & 22 Basics; these distances are once again divided
into four parts. We reach 21 Basics and ¾ of the Distance between 21B & 22 B
i.e. ¾ x 60 = 45 ranges. So needle R makes 21 complete revolutions and
thereafter revolves forward another 45 ranges. This indicates on the Earth’s
equator, a ¼ less than 22 Basics (79200 Chkm - ¼ x 3600 Chkm = 79200 Chkm - 900
Chkm = 78300 Chkm). We have travelled while riding the Earth’s Equator from 0B,
(i.e. B=0). And the needle B would have come to 21 B and have Moved
forward ¾ the Distance between 21 & 22 B. The same would be in the
case of 21B, 22B as in the case of 20B, which has been already explained.
__Thereafter 24B and 0B would be end of the old revolution and which would
coincide with the start of new revolution. Distance Relationship between
E_{ECD }and DP_{ DCD. }__

The Diameter of the Distance Pieces in Fig. 20 on page 37 is about 25mm which x p=78.5, 78.5/60= 1.309, but we want only 1 and not in addition .309. This is possible if we take a Distance Piece having a Circumference of 60 mm and then dividing it by p=19.1mm Diameter. Distance Pieces of this size have been given on Page 40, Fig.21 which has been reproduced here from page 21 Consisting of three Dials P, R & B. From Fig. 11 we see that when needle R makes a full Revolution 60 R i.e. = 1B which is E/12 or 60 mm/12=5mm.

This is shown as ** Needle B
moving from 0 to 1 i.e. 5 divisions as by construction each division is
1mm**.

**(40)**