CiiAi'. XXXVI. 
NAGPUR : MANSAU. 
889 
Another sample, representins; '5^*1 tons of ore stacked at Mansar, was 
analysed in July 1905 by Mr. R. D. Connell, chemist to the Central Prov- 
ince? Prospecting Syndicate, with the following result : — 
Manganese . . . . . . . 54'00 
Silica <)-70 
Phosphorus ...... M-O') 
This deposit is one of the, if not the, largest deposits in the Nagpur 
district and provides yearly for the market about the 
Methods of working. ^ xr ^ i • * u i i. 
same quantity of ore as Kandri. As the best part 
of the ore-body lies on the highest parts of the ore-ridge, i.e. at elevations 
of 250 to 350 feet above the plains on the south side, it has been found 
necessary to construct an aerial ropeway and various gravity inclines to 
bring down the ore. The ropeway consists essentially of four plough 
steel ropes, two for each bucket, thus differing from the Kandri ropeways, 
where each bucket is supported by a sinjile wire-rope. The ropes are each 
about 1,000 feet long and make a descent of about 300 feet from near the 
top of the hill on its south side to the low ground on the south side of the 
ore-ridge. As they have nc intermediats supports there is a great sag in 
the ropes, which are seen in Plate 33. The buckets each carry about one 
ton of ore at a time and are attached to the two ends of a hauling rope 
passing round a horizontal brake-wheel at the top of the ropeway. 
They are also fitted with a balance-rope passing round a tail- wheel 
at the unloading station. The ore is quarried, cleaned, and stacked, 
much as at Kandri and despatched to Kamthi station, some 16 miles 
distant by rail (formerly in bullock carts). 
Two gravity inclines, niarked as No. 1 (N) and No. 2 (S) respectively 
on the plan (Plate 35) have also been constructed, whilst a third. No. 1 (S), 
is under construction. The ropeway is now (December 1906) also to be 
taken down, as nearly all the ore above the level of its brake-gear has been 
quarried. Tn its place an incline, Nc. 3 (S). is to be erected with its brake- 
gear at a somewhat lower level. 
The vertical heights between the brake-gear and unloading station of 
each incline and of the old ropeway, and the average gradients, are shown 
in the following table : — 
Vertical 
distance 
in feet. 
Average 
gradient. 
Mu. 2 incline S. . . . . . . . . . 
120 
180 
ISO 
105 
1 in 3-3 
! in 3-S 
1 in 4-4 
1 in 4 • 4 
1 in 4 ■ 3 
