For Lathe Centers.
Sewing Machine Oil.
| II.— | Pale oil of almonds | 9 ounces |
|---|---|---|
| Rectified benzoline | 3 ounces | |
| Foreign oil of lavender | 1 ounce |
Petroleum Jellies And Solidified Lubricants.
Petroleum jelly, vaseline, and petrolatum are different names for the same thing.
The pure qualities are made from American stock thickened with hot air until the desired melting point is attained. Three colors are made: white, yellow, and black of various qualities. Cheaper qualities are made by using ceresine wax in conjunction with the genuine article and pale mineral oil. This is the German method and is approved of by their pharmacopœia. Machinery qualities are made with cylinder oils, pale mineral oils, and ceresine wax.
| I.— | Yellow ceresine wax | 11 parts |
|---|---|---|
| White ceresine wax | 6 parts | |
| American mineral oil, 903/907 | 151 parts |
Melt the waxes and stir in the oil. To make white, use all white ceresine wax. To color, use aniline dyes soluble in oil to any shade required.
| II.— | Ceresine wax | 1 pound |
|---|---|---|
| Bloomless mineral oil, Sq. 910 | 1 gallon |
Melt the wax and add the oil, varying according to the consistency required. To color black, add 28 pounds lampblack to 20 gallons oil. Any wax will do, according to quality of product desired.