Frictional Heat, 16.8 16.8 15.4 13.3 Reductions from 2nd test, 8.6 8.9 4.I 11.9 11.0 7.8 4.4 Percentage Reduction, 33.8 35.0 21.0 47.2 35.5 14.8 45.0 31.4 21.I

16.5 17.2

13.5 17.1 16.4

9.I 3.0

Average Reduction of Spindle Heat (Mules).
Same System of Readings give Reduction of Temperature on Both
Spindles,

. 21.0 per cent.

31.5 per cent.

Summary.

Reduction on the total load of the mill due to more perfect lubrication is, . . .

Reduction of the Engine and Transmission load This reduction will insure the engine starting easier in the morning, and especially Monday morning.

Engine speed increases,

This represents an increased speed of .

to the Mill and equals about that much in-
creased production.

Temperature of all bearings tested reduced from

due to better lubrication.

101.0 P. S. or 8.89 per cent.

34.5 P. S. or 9.51 per cent.

Relative Humidity was the same during both Tests.
Room Temperature against a Reduction in Power,
to a slight extent.

.39 R.P.M. 6 per cent.

4.1 °C to 8.9 °C

1

New Oils.

Test No. 12

Test made at Schuja, Russia.

POWER TEST ON A COTTON SPINNING MILL IN RUSSIA.

Engine

Made by G. A. Lessner, St. Petersburg. Horizontal Triple. Expansion Engine. Condensing. 214" and 344" and 53′′ x 54′′ stroke. Steam Pressure 165 lbs. 65 R.P.M. Developing about 1,240 H. P. Machinery Operated — Flyer, Ring and Selfactor Spinning, and all Preparatory Machines.

Complete Test - Of which the first five and last five days are given. 35 days. 6 indicators. 2,136 indicator cards. 2 operators.

1904.

Difference of Averages 57.4 H.P. or 4.6 per cent. on Average of Test.

Difference of Averages 44.3 H.P. or 4.2 per cent. on Average of Test.

Variation in

H. P.

Variation per

cent, on aver

age of day.

Result of Power Test.

MILL OILS. Average Nov. 3. 4. 5, 6, 7, 1903, ..
NEW OILS. Average June 14, 15, 16, 17, 18, 1904,

MILL OILS.

NEW OILS.

or 4.6 per cent.

Both Temperature and Relative Humidity are against a Reduction of Power.

The power was reduced, .

Cost of Burning Material (Wood).
MILL OILS.- From November, 1902 to March, 1903.
NEW OILS. From November, 1903 to March, 1904.
Saving,.

Rubels.

Average per day, 277.41 Average per day, 244.64 32.77

or 11.7 per cent.

Summary.

This would represent an increase in production as the production of a mill is dependent upon its speed.

The daily cost on Burning Material was reduced,

11.7 per cent.

Test No. 13.

Power Test made at Ahmedabad, India.

POWER TEST IN A COTTON SPINNING MILL IN INDIA.

Engine - Cross Compound. Corliss Valves. Cylinders 26′′ and 44′′ x 72" stroke. Steam Pressure 110 lbs. 52 R. P. M. Developing about 650 H.P.

Machinery Operated Cotton Spinning Machinery with usual preparation machinery for 34,000 Ring Spindles.

Complete Test - 4 days. 4 indicators. 720 indicator cards. 3 operators.

Difference of Averages 4.6 H.P. or 7 per cent. on Average of Test.

Average

H. P.

Variation in

H. P.

Variation per cent, on average of day.

1906.

Difference of Averages 10.3 H.P. or 1.7 per cent. on Average of Test.

.

NEW OILS. Average December 13, 14, 1906, (601.9 from which deduct

machine correction of 5.1 H.P.), .

642.6

596.8

45.8

NEW OILS.

Average of December 15, 1906, (212.2 deduct 10.0 H.P.

for new line of shafting not running on first test),

Reduction,

or 12.4 per cent.

I.H.P. 230.7

202.2

28.5

Average

H. P.

Variation in

H. P.

Variation per

cent. on aver

age of day.