Page images
PDF
EPUB

Frictional test of Leonard & Ellis White Spindle Oil, on April 23,

24 and 26, 1880. Rev. per min. 485.46, 5 lbs. pressure per sq. inch. Velocity of rubbing surfaces 546.15 feet per minute. No. of sample 11. No. of trials 5.

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors]

Frictional test of Valvoline White Loom Oil, on April 26, 1880.

Rev. per minute 512.51, 5 lbs. pressure per sq. inch. Velocity of rubbing surfaces 576.59 feet per minute. No. of sample 12.

No. of trials 2.

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors]

Frictional test of Olney Bros. German Spindle Oil, on April 30, and May 1, 1880. Rev. per min. 481.41, 5 lbs. pressure per sq.

Velocity of rubbing surfaces 541.59 feet per minute. No. of sample 13. No. of trials 6.

inch.

[blocks in formation]

Frictional test of Downer Ileavy Spindle Oil, on May 1 and 3, 1880.

Rev. per minute 498.56, 5 lbs. pressure per sq. inch. Velocity of rubbing surfaces 560.88 feet per minute. No. of sample 14. No. of trials 5.

[ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

Frictional test of Valvoline Machine Oil, on May 5, 1880. Rev.

per minute 526.39, 5 lbs. pressure per sq. inch. Velocity of rubbing surfaces 592.18 feet per minute. No. of sample 15. No. of trials 6.

[blocks in formation]

Frictional test of Olney Bros. A Spindle Oil, on May 8 and 10,

1880. Rev. per minute 512.27, 5 lbs. pressure per sq. inch. Velocity of rubbing surfaces 576.30 feet per minute. No. of sample 16. No. of trials 7.

[merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

Frictional test of Aiken & Swift Unbleached Winter Sperm Oil, on

May 12 and 13, 1880. Rev. per minute 495.54, 5 lbs. pressure per sq. inch. Velocity of rubbing surfaces 557.48 feet per minute. No. of sample 17. No. of trials 5.

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

Frictional test of Aiken & Swist Bleached Winter Sperm Oil, on

May 14, 1880. Rev. per minute 490.87, 5 lbs. pressure per sq. inoh. Velocity of rubbing surfaces 552.23 feet per minute. No. of sample 18. No. of trials 4.

[blocks in formation]

Frictional test of Downer Heavy Spindle Oil, on May 15, 1880.

Rev. per minute 458.02, 5 lbs. pressure per sq. inch. Velocity of rubbing surfaces 515.27 feet per minute. No. of sample 19. No. of trials 5.

[blocks in formation]

Frictional test of Downer Light Spindle Oil, on May 17 and 18,

1880. Rev. per minute 489.63, 5 lbs. pressure per sq. inch. Velocity of rubbing surfaces 550.83 feet per minute. No. of sample 20. No. of trials 3.

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]
« PreviousContinue »