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The power of this mill with the No. 8 Refiners off, pumping back and charging which make the great variation.

Mill Oils.

1904.

Maximum

H. P.

Variation per
cent.on aver
age of day.

6.5

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409.2

Tuesday, October 18

472.0 441.3

16

470.2 3.07 Wednesday, October 19

No. 8 Refiners on all during test. Thursday, October 20

486.1

44 462.2 76.9 Friday, October 21 508.1 431.1

28 463.7. 77.0

465.4 Difference of Averages 8 H.P. or 1.7 per cent. on Average of Test.

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New Oils.

1905.

Variation in

H. P.

Variation per
cent. on aver
age of day.

Tuesday, March 21

No. 8 Refiners on all during test. Wednesday, March 22

432.5 400.9 32 401. I 31.6 Thursday, March 23

471.7
337.6

66
382.8

134. I Friday, March 24

388.0 386.7 8

387.3 1.3

390.4
Difference of Averages 13.8 H.P. or 3.5 per cent. on Average of Test.

7.8 35.0

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I.H.P. 465.4

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Result.
Mill Oils.- Average of October 18, 20, 21, 1904. (Load without No. 8

Refiners),
New Oils. — Average of March 22, 23, 24, 1905. (Load without No. 8

Refiners),
Reduction, .

or 16.2 per cent,

390.4 75.0 61.3

413

Test No. 17.

Test made at Niederschlemma, Germany.

POWER TEST ON A GERMAN PAPER MILL.

m

Engine — Triple Tandem Compound. Condensation. Made by the Crimmit

schauer Maschinenfabrik in 1897. Cylinders: No. 1.–460 m/m. No. 2,-800 m /m. No. 3,-1,050 m/m. Stroke 1,000 m/m. Pressure 12

Atm. Superheating from 260 to 320 °C. Normal I. P.S. 500. Machinery Operated 7 Schleifapparate mit je 5 Pressen. 4. Vorsortirer mit

Schuttelsieben. 4 Raffineure. 4 Feinsortirer. 4 Rundsiebpappmaschinen. 1 Wasserpumpe.

i Elektromotor. Complete Test 6 days. 6 indicators. 1,800 indicator cards. 3 operators.

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Variation per
cent. on aver-
age of day. ||

1905.

54.6

10.9 11.8 IO. I

Monday, February 20.

523.8

469.2 300 501.I Tuesday, February 21

544.5 484.6 300 509.0 59.9 Wednesday, February 22 . 551.6 498.6

300 523.8 53.0

511.37
Difference of Averages 22.7 P.S. or 4.4 per cent. on Average of Test.

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P.S. # Variation in

Variation per-
cent. on aver-
age of day.

19.0

502.2 515.8

9.1

Wednesday, May 23

413.1 300 469.6 89.1 Thursday, May 24

471.0 300 490.8 44.8 Friday, May 25

12.6

507.4 446.1 300 484.9

482.43 Difference of Averages 21.2 P.S. or 4.4 per cent. on Average of Test.

Result.

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Mill Oils. — Average of February 20, 21, 22, 1905,
New Oils. — Average of May 23, 24, 25, 1905,
Reduction,

or 5.6 per cent.

I.P.S. 511.37 482.43 28.94

.

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15 H.P.

Motor - British Westinghouse. 3 Phase.

220 Volts at 45 amp. per terminal. Full load speed 560 R. P. M. Machinery Operated Lathes, Drilling Machines, Emery Wheels, Grind Stone

and all machines for a first class Brass Fitting Shop.

The current used was measured by the number of revolutions of the disk inside the watt meter, wbich, from information obtained from the makers, the British Thompson, Houston Co. makes twenty-five revolutions per board of trade unit passed. The disk revolutions give, therefore, the actual ratio of current used under the two conditions of working

Note — This is the second series of lubricating tests made upon this shop. The

first series showing such great reductions due to the fact that the shop oil had left a very undesirable deposit, that it was considered fair to all parties to make another trial giving the shop oil the advantage of the bearings that has been cleaned by the new oil. Assuming that the shop oil would again put the bearings in the same state as when first found (which proved to be the case) sufficient time was allowed for the new oil to again clean away these deposits before the comparative test was made.

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Friday,

January 26 Friday, January 26

Average

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577.2

177.5

33.7

170.9

New Oils.

REVOLUTIONS PER

MINUTE.

1906.

Time.

Amps.

Meter Disk
Revolutions
for Twenty
Minutes.

Motor.

Shaft.

1.02-1.20
5.04-5.22

592.1
593.6

I 20. I
1 20.4

24.8

26.5

127.5
135.2

Tuesday, February 13
Tuesday, February 13
Wednesday, February 14 .
Wednesday, February 14

Average

1.02-1.20 5.02-5.20

584.2
591.8

119.4
I 20.2

24.6

1 26.5 1 22.7.

22.4

590.4

I 20.0

24.6.

128.0

Second Test.

(Second Series.)
All belts on loose pulleys. Motor and shafting only.

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Result.
Full Load with all Machines Running Light.

Meter. Units

Disk Revs. Used. SHOP Oils.— Average of four runs of 20 minutes each,

168.5 6.740 NEW Oils. Average of four runs of 20 minutes each, .

128.0

5.120 Reduction equals 24.0 per cent. of power or

40.5 1.620 while the motor and line shaft were running 2 per cent. higher speed.

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Motor and Shafting Load.

Meter. Units Disk Revs. Used.

44.3 1.772 38.2 1.528

Shop Oils. — Average of four runs of 20 minutes each,
New Oils. — Average of four runs ot 20 minutes each, .

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Reduction equals 13.8 per cent. of power or

6.1

0.244

Degrees
Fahr.

Temperature of Two Shaft Bearings.
Shop Oils. — Average of 32 half hour readings. Temperature of bear-

ings above temperature of surrounding atmosphere NEW Oils.

18.0

9.7 8.3

Reduction, .

or 46.1 per cent.

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