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Mill Oils.

Temperature and Relative Humidity.
December 20.

December 21.

December 22.
Room
Relative
Room
Relative Room

Relative
Temperature, Humidity Temperature, Humidity Temperature, Humidity
°C.
Per Cent.

°C.
Per Cent.

°C

Per Cent. 20.5 67.5 21.2

70
20.0

70

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Mill Oils.

Spindle Temperature. (Mules.)
Temperatures. Tuesday.

Wednesday.
Ist Test Spindle °C 45.9 46.2 40.0 46.4 46.8 41.4
Dec. I, 1904, Room °C 20.5 20.5 20.5 21.2 21.2 21.2

Thursday. 44.5 44.9 40.8 20.0 20.0 20.0

Frictional Heat

25.4 25.7 19.5

25.2 25.6 20.2

24.5 24.9

20.8

New Oils.
Temperatures. Tuesday.

Wednesday. Thursday. 2nd Test

Spindle °C 35.9 35.9 34.5 32.4 35.3 36.0 32.3 36.0 35.3 Feb. & Mar. 1905, Room °C 19.1 19.1 19.1 19.1

18.8 18.8 18.8 18.9 18.9

8.9

II.O

21.1

Frictional Heat,
16.8 16.8 15.4 13.3 16.5 17.2 13.5 17.1

16.4 Reductions from 2nd test, 8.6

4.1 11.9 9.1 3.0

7.8 4.4 Percentage Reduction, 33.8 35.0 21.0 47.2 35.5 14.8 45.0 31.4 Average Reduction of Spindle Heat (Mules).

31.5 per cent. Same System of Readings give Reduction of Temperature on Both Spindles,

21.0 per cent.

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

101.0 P. S. or 8.89 per cent. Reduction of the Engine and Transmission load 34.5 P. S. or 9.51 per cent. This reduction will insure the engine starting easier

in the morning, and especially Monday

morning Engine speed increases,

•39 R.P.M. This represents an increased speed of .

6 per cent. to the Mill and equals about that much in

creased production. Temperature of all bearings tested reduced from

4.1 °C to 8.9 °C due to better lubrication. Relative Humidity was the same during both Tests. Room Temperature against a Reduction in Power,

to a slight extent.

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. Expan

sion Engine. Condensing. 2144" 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.

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84.7

Monday, November 3,

1359.6
I 201.4

108 1268.1 158.2 12.5 Tuesday, November 4, 1286.9 1176.1

108

I 247.2 110.8 8.8 Wednesday, November 5, 1265.0 1143.6

108

1232.3 121.4 9.9 Thursday, November 6, I 241.5 1156.8 108

1211.7

7.0 Friday, November 7, 1277.0 1137.0 108

1234.5 140.0 11.3

1238.8
Difference of Averages 57.4 H.P. or 4.6 per cent. on Average of Test.

New Oils,

Second Test.

1904.

Maximum

H. P.

Variation per
cent. on aver-
age of day.

Tuesday, June 14

1150. I 1046.1 108

1091.I 104.0 9.5 Wednesday, June 15

1145.4
1026.8 108 1084.1 118.6

10.4 Thursday, June 16

1129.9 967.5 108

1064.5 162.4 14.3 Friday, June 17

1081.7 1000.8 108

1046.8 80.9 7.5 Saturday, June 18

1108.0
1022.9 108

1055.0 85.1 7.7

1069.1
Difference of Averages 44.3 H.P. or 4.2 per cent. on Average of Test.

Result of Power Test.

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Mill Oils.— Average Nov. 3, 4, 5, 6, 7, 1903, · ·
New Oils. — Average June 14, 15, 16, 17, 18, 1904, ·
Reduction, ..

or 13.7 per cent.

1,238.8 1,069.1 1,69.7

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Average Temperature and Relative Humidity.
Temperature C.

Relative Humidity Per Cent. Mill Oils, . 32.6 .

42.3 New Oils, 30.8.

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

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Cost of Burning Material (Wood).

Rubels. Mill Oils.- From November, 1902 to March, 1903. Average per day, 277.41 New Oils. From November, 1903 to March, 1904. Average per day, 244.64 Saving,

32.77 or 11.7 per cent.

.

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Summary. The power was reduced, .

169.7 H.P. or 13.7 per cent. The Speed of Flyer Spindles increased,

1.8 per cent. The Speed of Ring Spindles increased,

4.6 per cent. The Speed of Mule Spindles increased,

1.4 per cent. 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,

II.7 per cent.

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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 10 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.

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Variation per
cent. on aver-
age of day.

160

14.4 II.1

696.1 602.9 160 Wednesday, May 9.

644.9

93.2 679.3 Thursday, May 10

608.4

640.3

70.9

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

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Thursday, December 13

648.1 562.1 160

607.0 86.0

14.2 Friday, December 14

642.3
514.2 160

596.7 1 28.1 21.5

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

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1.H.P.

642.6

Mill Oils.— Average May 9, 10, 1906,
New Oils. — Average December 13, 14, 1906, (601.9 from which deduct

machine correction of 5.1 H.P.), .
Reduction, .

or 7.1 per cent.

596.8

45.8

Engine and Transmission.

I.H.P. 230.7

Mill Oils. — Average of May 13, 1906, .
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.

202.2

28.5

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