The individual removes his old shoes, puts on his Marine Corps Pack, holds his rifle and mounting the measuring platform sets his stockinged foot onto the base of the machine making certain that the heel fits snugly against the curved block at the back. At this time the measures note carefully whether the center of the foot is in the center of the machine.

The wings at the sides are then released and permitted to press tightly against the sides of the foot. The plunger on the front of the machine is then pressed backward until it touches the end of the foot. Thus the width and length indicators arc set. However, this is not final.

The person being measured is then requested to balance on the foot being measured by resting the hand against an overhead support and told to raise the heel one-fourth to half an inch placing all the superimposed weight on the ball of the foot. This rising stimulates locomotion, and since he is bearing all the weight he usually bears on the march the act will cause the same expansion of the faith length and sidewise.

Upon this act of rising there is a resultant spread of the foot; a pushing of .the plunger forward; and the wings laterally indicating automatically the correct shoe length and width.

The indication of the shoe length is always positive. This is not so, however, with the shoe width. As the person raises the heel up and down the width indicator will sometimes be seen to waver back and forth. The measure noting this takes the middle mark between the extensive points touched by the width indicator as the correct width.

For instance, if the pointer vacillates between width E and width F the correct width for the shoes would be a width EE. Wherever doubt is entertained as to the exact points of width

safety shoes

and the length is always best to select the greater length and narrow width. So simple is the indication of the size that the interpretation is made quickly and accurately which counts for efficiency in measuring.

In the U. S. Army, Special Regulations No. 28 complete instructions for using the machine are given. They are as follows:

(a) After taking the machine from its box, open it widely by moving the lever as far front as possible and pulling out the plunger as far as it will go. The machine is now ready for use.

(b) Have the man put his foot in the machine and stand with all his weight. The heel should rest firmly against the heel block. It is important that the foot should rest in the exact center of the machine.

(c) Release the lever which operates the width indicator and pushes the plunger until the plate touches the toe. Do not touch the plunger again while the foot is in the machine. Make sure that the metal side pieces touch the toe joints.

(d) Then let the man throw his entire weight on the ball off his foot, raising the heel slightly.

(e) The width is automatically registered by the arrow as the arrow wavers, following the action of the heel up and down, take the average of the extremes. (Example. If the arrow wavers from width "b" use width "c.") The correct size of the shoe is indicated by the pointer on the plunger on the right-hand scale.

(f) Measure the other foot in the same manner and if there should be a difference select size to fit the longer foot and the narrower width.

(g) Oil the slide under the device occasionally. NOTE.—Verify the length selected by testing with a shoe-fitting device.

NOTE.—Verify the length selected by testing with the shoe-fitting device.

Verifying the Size and Fitting the Shoe

In this final and most important at the fitting device is used to verify the size of shoe length as indicated by the foot measuring machine. Width is determined by the measurements of the measuring; machine and is not demonstrated by the fitting device.