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 this and then applying the speeder, you
can determine the loss by comparing the figured speed with the actual
speed shown by the speeder. If you have a good speeder you can make
good use of it every day you run machinery. If you want one you want
the best and there is nothing better than the one made by The Tabor
Manufacturing Co., of Philadelphia, Pa. We use no other. You will see
their advertisement in the American Thresherman.