a better working position.
Machinist’s vises are
usually bolted to a work bench or table.
CORNICE BRAKE.—The cornice brake is
designed to bend large sheets of metal. See figure
13-22. It can be adjusted to handle a variety of metal
thicknesses and to bend metal to a variety of radii.
The brake is equipped with a stop gauge, which
consists of a rod, a yoke, and a setscrew. The stop
gauge limits the travel of the bending leaf. This
feature is used to make a number of pieces with the
same angle of bend.
The standard cornice brake is extremely useful
for making single hems, double hems, lock seams,
and various other shapes, some of which require the
use of molds. The molds are fastened to the bending
leaf of the brake by friction clamps. Figure 13-23
shows sheet metal that is ready to be formed over a
mold attached to a cornice brake.
Figure 13-23.—Cornice brake with mold and stock.
13-15
Figure 13-22.—Cornice brake and operation.
