Manufacturer. 1 2 3 4 5 6
American Waltham Watch Co.Several.Several. Small. No. Heavier oil on barrel arbors and winding Wheels. 8 quarts
Elgin National Watch Co.Smith's on fine work. Nye's.Kelley's. Cook's. Nye's. Wheeler's. Smith's. No.Light oil on escapements, and oil with more body in mainspring boards. 1-1/2 gallons.
Hampden Watch Co.Kelley's.Kelley's. UnsatisfactoryYes.
Illinois Watch Co. Nye's.Kelley's. Cook's. And others.Do not use Mixed Oils. 3 quarts.
New Columbus Watch Co. Nye's.Nye's. Kelley's. None. No.Chronometer oil on stem-wind and do no experimenting.1 gross bottles regular size.
New York Standard Watch Co.Kelley's.Kelley's. None. No.Watch oil on train pivots, and clock oil on stem wind. 2 quarts each.
Rockford Watch Co.Kelley's.Kelley's Ayer's. Guyjers? Smith's. Yes.
Trenton Watch Co. Nye's. Yes.
Waterbury Watch Co. Smith's.Kelley's. Nye's. Smith's. And others.Not a Success.Yes. 1 gallon.
Seth Thomas Clock Co.Nye's. Most others. None.Yes.Watches, lightgrade.
Yes. Clocks, medium grade.
Yes.Tower Clocks, heavy grade.
E. Howard Watch & Clock Co. {1}Sine Dolo Stevenson's. Blackfish. Porpoise-jaw. Rock. None. No.On all bearings the same oil, but on mainspring a rock oil. 1 gallon.
{2}Kelley's. None.Yes. 1 gallon.
{3}Rock Oil. Satisfactory.Yes. 10 gallon.
H. H. Heinrich,Chronometer Maker. Stull's.Every kind in the market.Unsatisfactory. No.Light oil for small pivots and heavier oil for larger pivots.1 pint.
New Haven Clock Co. Stull's. Kelley's.Stull's. Blackfish. Porpoise.Unsatisfactory.Yes.A light oil on clock-watches. 20 gallons.
Yes.A heavy oil on clocks.
Ingraham Clock Co. Porpoise. Rock. Mixed.Unsatisfactory. Yes. 12 gallons.
Waterbury Clock Co. Stull's. Stull's. Smith's. Stevenson's. None.Yes. 15-20 gals.
Wm. L. Gilbert Clock Co. Nye's. Nye's. Smith's. Kelley's. Comstock's. 10-12 gals.

[Note 1: Watch.]

[Note 2: Regulator.]

[Note 3: Tower Clock.]

Then again some workmen leave the oil bottle standing open, which is obviously a very careless proceeding. The author has seen a bottle one quarter full of dust, the oil still being used from the top. When oil is to be placed in the oil-cup, it should be done by using a small, clean glass rod—kept for the purpose—and never poured out of the bottle.

The oil cup should always have the cover on except when taking oil from it. Before it is refilled it should be very carefully cleaned.

The oiler should be perfectly clean, that kind which has a hexagonal nut on the handle and a gold tip being very excellent. Some careless workmen wipe the oiler on the back of the hand, on the clothes, on a dirty rag, on an old chamois, etc. The tip of the oiler should never touch the hand or fingers, as the acids in the perspiration are sure to cause a bad effect on the oil.

The following is a list of "oilers" which the author has seen used:—Peg wood, broom straw, quill, toothpick, match-stick, screw driver, tweezers, rat-tail file, piece of copper wire, horse-shoe nail, steel pen.

If dust be on the bench paper, or in the movement tray, the pivots will surely transfer some of it to the bearings when the wheels are being put to place.

The scape-wheel, mainspring and other parts, the rubbing surfaces of which may come in contact with the fingers, should be so handled as to allow no perspiration to become deposited on any surface which may afterwards require oiling, as the acids contained in the perspiration will exert an injurious effect on the oil.