Figure 4-23.--Cornice brake with mold and stock.
metal that is ready to be formed over a mold attached to
It can be adjusted to handle a variety of metal
a cornice brake.
thicknesses and to bend metal to a variety of radii.
The brake is equipped with a stop gauge, which
BAR FOLDER.--The bar folder, shown in figure
consists of a rod, a yoke, and a setscrew. The stop gauge
4-24, is designed for use in making bends or folds along
limits the travel of the bending leaf. This feature is used
edges of sheets of metal. This machine is best suited for
to make a number of pieces with the same angle of
folding small hems, flanges, seams, and edges to be
bend.
wired. Most bar folders have a capacity for metal up to
22 gauge in thickness and 42 inches in length. Before
The standard cornice brake is extremely useful for
using the bar folder, you must make several
making single hems, double hems, lock seams, and
adjustments, including adjustments for thickness of
various other shapes, some of which require the use of
material, width of fold, sharpness of fold, and angle of
molds. The molds are fastened to the bending leaf of the
fold.
brake by friction clamps. Figure 4-23 shows sheet
Figure 4-24.--Bar folder.
4-13
