WEIGHT OF FILLETS

To facilitate the calculations of the weights of the different parts of a machine from the drawings, the accompanying table of areas or volumes of fillets having radii from to 3 inches can be used. It has been calculated for fillets connecting sides that are at right angles to each other.

Radius of
Fillet
in Inches

TABLE OF AREAS OR VOLUMES OF FILLETS

Area or Volume
of Fillet in Sq.
or Cubic Inches

Radius of
Fillet
in Inches

Area or Volume of Fillet in Sq. or Cubic Inches

.0008

.0033

I

.0075

.0134

.0209

.0302

.0410

.0537
.0678
.0838
.1013
.I 207

.1417
.1643

coko

00/20 ------- 2 2 2 2 2 2 2 2 2 2 2 2 2 2 223

.5240 .5667 .6119 .6572

.7050

.7543

.8056

.8584
.91 29

.9690
1.0269
1.0864

1.1475

1.2105

I.2749

1.6869

1.7739

To find the volume of a fillet by this table when the radius and length are given, multiply the value in the table opposite the given radius by the length of the fillet in inches, and this result multiplied by the weight of a cubic inch of the material will give the weight of the fillet.

WIRE GAGES AND STOCK WEIGHTS

TWIST DRILL AND STEEL WIRE GAGE SIZES

THE Twist Drill and Steel Wire Gage is used for measuring the sizes of twist drills and steel drill rods. Rod sizes by this gage should not be confused with Stubs' Steel Wire Gage sizes. The difference between the sizes of corresponding numbers in the two gages ranges from about .0005 to .004 inch, the Stubs sizes being the smaller except in the cases of a few numbers where the systems coincide exactly.

IN using Stubs' Gages, the difference between the Stubs Iron Wire Gage and the Stubs Steel Wire Gage should be kept in mind. The Stubs Iron Wire Gage is the one commonly known as the English Standard Wire, or Birmingham Gage, and designates the Stubs soft wire sizes. The Stubs Steel Wire Gage is used in measuring drawn steel wire or drill rods of Stubs' make and is also used by many American makers of drill rods.