gate posts, and is provided with the bracket scrolls a to distribute and support the weight, with the scrolls b to brace the grille laterally, and with the scroll to prevent any tendency towards a rotary movement. The iron arch in Fig. 104 is designed to rest on the top of the gate posts, and the scrolls a are so arranged at the foot of the arch that they prevent any lateral movement or tendency to revolve, the weight being better distributed and also a firmer hold being obtained, by extending the large scroll b.

IRON STRUCTURES.

75. It is sometimes desirable to erect small structures entirely of cast and wrought iron. Of these the most common are the small domes or cupolas crowning the roofs of certain classes of buildings, bay windows, oriole windows, and show windows for residences and stores, and occasionally small detached buildings used as offices for the sale of tickets at the entrance of places of amusement, or as an adjunct to some branch of a general service system, as is the example hereafter shown. In any case, the structure is necessarily of an ornamental character, and must accord in design with surrounding conditions.

An example of a detached iron structure is shown in Fig. 105. The entire edifice being constructed of cast and wrought iron framework carrying a copper roof and heavy plate-glass window lights. The purpose of the building is that of a cab office in connection with the service of a hotel, club, or theater. The plan is octagonal, as shown in Fig. 106, each angle of the octagon being marked by a hollow castiron upright, molded to form the architraves of the window and door openings, and at the same time to contain the T-iron supports d of the roof and superstructure. These supports extend to the ground in each case, and stand upon an iron plate, or shoe, as shown at g in the elevation, Fig. 105 (a), and between them is framed an angle iron, to receive the ends of the floorbeams, as shown at in the

section, Fig. 105 (6). The space from this angle to the ground is filled with a cast-iron grille, as shown in the elevation at c;

while from the floor to the window level a cast-iron plate encloses each side of the octagon with an ornamental

panel p.

The construction of this paneled dado can be better understood from Fig. 107, which is a section taken on the line ab The angle iron framed between the vertical T's, as shown at / in Fig. 105 (b), is here seen in section

of Fig. 105 (a).

as piece 32, and outside of it is the cast-iron

a

water

facing of the structure,
consisting of
table 4 inches in height,
and the plinth, panel, and
window sill extending
2 ft. 3 in. more. The
sill cap o is secured at
each end to angle-iron
knees or brackets previ-
ously riveted or bolted.
to the vertical T sup-
ports. These sill caps
extend over the top of
the panel pieces and
hold the latter in place
by clamping over a rib
piece cast on the top of
the main panel. On this
sill piece o rests the sash
as shown at v, and on the
inside of the office is
secured the wood trim
which forms the finish
under the sill.

in place by means of the wrought-iron strap s bolted to the main cornice, and to which the inside cornice is fastened

with screw bolts. Observe that these screw bolts do not pass through the sash head, but simply secure the two pieces. of cast-iron cornice to the strap or bar s.

In Fig. 109 (b) is shown a section through the lower