In Figure 3 we show a simple arrangement, an assembling of the outfit for ordinary use on overhead shafting, the position of the level, the portable target and the back target. The two targets are transparent, the illustration showing the use of the magnifying lamp for night work, which makes it unnecessary to light up the factory.

B

FIGURE 4.-USE OF PORTABLE TARGET WITH OFFSET.

Figure 4 shows the fundamental principle of using the target with offset for the purpose of getting around an obstruction

whether a machine or belt.

Various arrangements of this offset

feature, will enable the operator to overcome any condition or obstruction he may find.

Figure 5 shows the method of adjusting the target on shafting which is in a pit or on the floor.

FIGURE 5.

PORTABLE TARGET OVER PIT SHAFTING.

Figure 6 shows a common use of the target, that of a horizontal adjustment used generally with shafting on piers where it is not advisable or convenient to make any other set up.

Figure 6 shows a very common arrangement where the shafting runs under tables or benches. It is really a simple offset arrangement.

FIGURE 7. SHAFTING UNDER BENCHES OR TABLES.

The merit of this system is based upon the portable target and its centering features because of its invariable relation to the line of the shaft. Each reading presents the actual condition of the hanger both as regards the alignment and level at one operation. The crosshairs of the architect's level showing on the face of the target, indicates the two positions, whether the shafting is high or low or out of alignment. The boxes can be adjusted to one one-hundredth of an inch if desired. and a reading of any length shafting can be made. All arrangements of the targets provide for the accurate locating of the engineer's level in positions convenient to the operator. The method is simple, absolutely accurate and economical; so simple that any ordinary millwright can use it, so accurate as to insure the reducing of an ordinary friction load anywhere from 10 to 50 per cent., and so economical as to enable two men to do in an hour's time, whether night or day, more actual work than four men can do in four hours' time under the old method.

LINING-UP SHAFTING IN MOTION.

A careful study of Figure 8 will be interesting for the reason that this photograph was taken while the shafting was running at a speed of 185 revolutions a minute. In this particular case neither the architect's level nor portable target was affected in the least by vibration nor the running of the shafting, and an absolutely perfect reading was secured. While it is advisable at all times to align shafting when not in motion, it is nevertheless true that a perfect operation can be secured even though the shafting is in use. The only thing that will affect the reading would be the vibration from the floor or ceiling such as is found in the weaving room, which would make it difficult to get an absolute reading of your architect's level, although