d think that is all it is
good for; and there is where you make a mistake. It is made of a
combination of solid lubricant and ground or pulverized mica, that is
where it gets its name, and nothing can equal mica as a lubricant if you
could apply it to your gear; and to do this it has been combined with a
heavy grease. This in being applied to the gear retains the small
particles of mica, which soon imbed themselves in every little abrasion
or rough place in the gearing, and the surface quickly becomes hard and
smooth throughout the entire face of the engaging gear, and your gear
will run quiet, and if your gearing is not out of line will stop cutting
if applied in time.

It will run dry and dust will not collect on the surface of your cogs,
and after a coating is once formed it should never be disturbed by
scraping the face of the gear, and a very little added from time to time
will keep your gear in fine shape. Its name is against it and if the
makers would take a tumble to themselves and call it "Mica Oil" or some
catchy name and get it introduced among the users of tight gearing, they
would sell just as much axle grease and all the grease for gearings.

FORCE FEED OILER

Force feed oiler come next on the list. This is something not generally
understood by engineers of traction and farm engines, and accounts for
it being so far down the list. But we think it will come into general
use within a few years, as an oiler of this kind forces the oil instead
of depending on gravity.

The Acorn Brass Works of Chicago make a very unique and successful
little oiler which forces a small portion of oil in a spray into the
valve and cylinder, and repeats the operation at each stroke of the
engine, and is so arranged that it stops automatically as soon as the
oil is out of the reservoir; and at once calls the attention of the
engineer to the fact, and it can be regulated to throw any quantity of
oil desired. Is made for any size or make of engine.

SPEEDER

One of the little things, that every engineer ought to have is a Motion
counter or speeder. Of course, you can count the revolutions of your
engine, but you frequently want to know the speed of the driven pulley,
cylinder for instance: When you know the exact size of engine pulley and
your cylinder pulley, and the exact speed of your engine, and there was
no such thing as the slipping of drive belt, you could figure the speed
of your cylinder, but by knowing th