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Temperatures.

Rope Race Bearings.
(Average Readings of Six Bearings.)

Heat due to
Bearing Tempt. Room Tempt. Friction.
Degrees Fahr. Degrees Fahr. Degrees Fahr.
142.5

97.5

45.0 113.0

91.3

21.7 Reduction of Frictional Heat,

or 51.8 per cent.

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23.3 °F.

Line Shaft Bearings.
(Average Readings of Seven Bearings.)

Heat Due to
Bearing Tempt. Room Tempt. Friction.
Degrees Fahr. Degrees Fahr. Degrees Fahr.
123.7

97.3

26.4 103.0

89.3

13.7 Reduction of Frictional Heat,

or 48.1 per cent.

Mill Oils,
New Oils, .

12.7 °F.

Mill Oils,
New Oils,

Ring Spindle Temperatures.
(Average of Three Ring Spindles.)

Heat Due to
Spindle Base.

Room.

Friction. Degrees Fahr. Degrees Fahr. Degrees Fahr. 104.0

96.0

8.0 90.7 86.0

4.7 Reduction of Frictional Heat,

or 41.2 per cent.

3.3° F.

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Temperature was greatly against a reduction in power. The Relative Humidity effect would probably about average, though the Humidity in No. 2 Room shows a considerable increase for the first test over the outside condition, due to artificial means. This would act towards increasing the power for that one room as compared to a lower per cent. of Relative Humidity.

Summary of Results of Test. Reduction on the Full Mill Load of, . ..

45.8 H.P. or 7.1 per cent. Reduction on the Transmission Load of,

28.5 H.P. or 12.4 per cent. Reduction in Temperature of Rope Race Bearings, . 23.3 °F. or 51.8 per cent. Reduction in Temperature of Line Shaft Bearings, . 12.7 °F. or 48.1 per cent. Reduction in Temperature of Ring Spindle Bearings, 3.3 °F. or 41.2 per cent.

Test No. 14.

Test Made at Owari, Japan.

POWER TEST IN A JAPANESE COTTON SPINNING MILL.

Engine T. Musgrave and Son, Bolton, England. Cross Compound 18" x 34"

4 ft. stroke. 100 lbs. pressure. 70 R. P. M. Developing about 350

H.P. Machinery Operated — Usual Machinery for preparing and spinning cotton yarns,

and for the second test 100 native made looms were added. Complete Test - 6 days. 4 indicators. 1,040 indicator cards.

2 operators.

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6.7 7.1 6.6 4.3

Tuesday, October 16,

357.0 334.0 8o

342.7 23.0 Wednesday, October 17,

351.0 327.0 160

340.2 24.0 Thursday, October 18,

359.0
336.0 160

346.0

23.0
Friday,
October 19,

366.0
351.0

80

357.4. 15.0

346.6 Difference of Averages 17.2 H.P. or 4.7 per cent. on Average of Test. New Oils.

Second Test.

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Tuesday, March 6,

340.0 323.0

332.5 17.0 Wednesday, March 7,

336.0
316.0 160

327.4 20.0 Thursday, March 8,

344.0
320.0 160

331.4 24.0
Friday,
March 9,
343.0 329.0

80

334.6 34.0
(9.30 to 12)

331.5
Difference of Averages 7.2 H.P. or 2.2 per cent. on Average of Test.

Load with the New Looms Off. Friday, March 9, (7.30 to 9.45), 315.0 306.0 8o

310.9 Influencing Conditions. Counts spun. Heavier on second test which would be against the reduction shown.

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Mill Oils.

Temperature and Relative Humidity.

Temperature Degrees Fahr. Relative Humidity Per Cent. Tuesday, October 16, .

'86.0

58.0 Wednesday, October 17,

88.6

54.0 Thursday, October 18,

84.8

53.5 Friday, October 19,

84.0.

54.0 Average,

86.0

.

.

55.0

New Oils.

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Tuesday, March 6, .

69.8 .

46.0 Wednesday, March 7,

73.2 .

49.0 Thursday, March 8,

69.4

46.0 Friday, March 9,

75.5

44.5
Average,
71.0

48.0 Mill Oils. — Average of October 16, 17, 18, 19, . 86.0 °Fahr. 55 per cent. New Oils. — Average of March 6, 7, 8, 9.

71.0 °Fabr. 48 per cent. The temperature was 15 degrees Fahr. lower during the second test which would be much against the reduction in power.

The Relative Humidity, however, was also lower which wouid be in favor of the reduction in power. These two influences would in all likelihood balance each other so that it may be considered that the atmospheric conditions were the same.

Machines in Operation. Stoppages on first test,

5.4 Stoppages on second test,

7.3 Difference to be added to second test,

1.9 Extra Power for Weaving Department, second test.

19.8 The difference (17.9 H.P.) is to be deducted from the 2nd test.

Coal Consumption.
Average Consumption for Two Hours for Each Day of Test.

Kwan. Mill Oils. - October,

1,525 New Oils. March,

1,395 Reduction,

130 or 8.5 per cent.

Production.

H.P.

.

.

Average Production Per Day During Each Test.
Mill Oils. - October, .
New Oils. March,

.

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Increase,

29,425

or 4.1 per cent.

Results of Power Test.

1.H.P. 346.6 313.6

.

Mill Oils. — Average of October 16, 17, 18, 19,
New Oils. — Average of March 6, 7, 8, 9, (331.5 deduct 17.9 H.P.):
Reduction, .

or 9.5 per cent.

33.0

Summary.

This test produced the following result due to a change of lubricants : Total H.P. of the mill was reduced

· 33.0 H.P. or 9.5 per cent. The coal consumption was reduced . .

8.5 per cent. while more machinery was in operation during the

second test. The production of the mill was increased .

4.1 per cent. during the second test.

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Test No. 15.

Test made at Bombay, India.

POWER TEST ON A FLOUR MILL IN INDIA.

Engine Yates and Thom., England. Cross Compound Condensing. Cylinders 18'' and 30" x 4 ft. stroke. Steam Pressure 100 lbs.

55.5 R.P.M. Machinery driven by this engine is that usually found in a 25-roll plant

on the Symon System. Auxiliary Engine - Compound Condensing by Marshall Sons & Co. Cylinders

13'' and 21" x 2 ft. stroke. Steam pressure 100 lbs. 90 R.P.M. Machinery — Wheat Dressing Machinery, fans and elevators.

Both engines run continuously from Monday, A. M. until Sunday, A. M. Complete Test — 8 days. 4 indicators. 680 indicator cards. 3 operators.

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