This section is from the book "A Treatise On Architecture And Building Construction Vol3: Stair Building, Ornamental Ironwork, Roofing, Sheet-Metal Work, Electric-Light Wiring And Bellwork", by The Colliery Engineer Co.. Also available from Amazon: A Treatise On Architecture And Building Construction.
53. An elevation of the sliding or rolding gate, protecting the entrance to the car, is shown in Fig. 73 (a), while Fig. 73 (e) shows a large scale detail of the bottom of the sliding post of the gate n and the guide o in which it slides. The vertical members of the gate are each composed of a pair of 1/2-inch channels, as shown at a in Fig. 73 (f), which is an enlarged plan. Between these channels the diagonal lattice bars b are secured as shown, with washers c between them to prevent their rubbing together as the gate is opened and shut. The rivets securing this latticework to the channels are not driven tight, but are left sufficiently free to play up and down in the slotted openings shown in the elevation, Fig. 73 (a), at a. Thus, the gate, which effectively bars the 2 ft. 7f in. opening in the car, occupies, when open to its fullest extent, only the width of the seven vertical channels, or 3 1/2 inches. On the exterior channel a 1/2" X 1/4" guide is riveted, as shown at n in Fig. 73 (e), and on the under side of the Z-bar flange a track o is secured for the guide to travel in. At the top of the gate the 1/2-inch channels are carried up each side of the frieze grille of the car, as shown at b in Fig. 73 (a), and also in Fig. 73 (e), where the lower bar of the frieze grille is shown at g and the side bars or channels at p. The general appearance of the car when completed and all of its parts assembled, is shown in Fig. 74.
54. In Fig. 75 is shown a reproduction of a shop drawing of one of these cars, which was to be one of several all constructed alike, and accounts for the excess of material stated on the drawing for the different parts. This car is designed for a similar disposition of tracks and guides as the last example, but the design is more elaborate. The bottom of the car shown at a in the interior elevation (a) is of wood; the upright framing is of square tubes, as shown in the plan at b, inside of which an iron rod c passes through the floor and the cornice d, and secures these parts as shown. The framework is bound together horizontally by rods at the rail and base, as shown in the elevation at e, and by the cornice at the top. Similar rods are placed in the corners behind the projecting panels on each side, thus binding the whole car together. The top of the car is of sheet iron, and, being dome-shaped, is self-supporting. The sides of the car are of cast iron below the rail, and cast and wrought iron above, with a mirror on each side. The small section of front shown in the plan at s is made to swing inwards, to allow the use of the full width of the car in taking on merchandise. The outside of the car below the rail is covered with sheet iron. The dado of the side shown at g in the elevation (a) is cast in one piece, including the base, panel, frieze, and cap. The base and cap are plain molded; the outside molding of the panel is decorated with a link leaf and the inner with a spool-and-reed ornament. The casting is secured at the top and bottom by bolts through the angle irons h, which are framed in between, and bolted to, each pair of corner posts. At the sides the panels are held by small lugs cast on them to receive dowel-pins, as shown at i. The top and bottom of the outside frames for the grilles shown at j are made of bar iron l 1/4 in. X l 1/4 in., and the sides k of 3/4" X 1/4" iron. The inside frame dividing the cast-iron border and the grille is of 5/8 in. X 3/16 in., as shown; the bars of the grille are 5/8 in. X 1/8 in., and the scrolls are all 1/8 inch thick. The cast-iron border of the grille is a laurel-leaf design with a rosette in each corner and in the center of the top and bottom sections. The scrolls are secured to the frame by rivets, but to the bars they are held by straps. The cast-iron guide box, shown at l in the plan, is strengthened at the corners and finished on the inside with a pilaster, the upper part or shaft of which is fluted and finished with a cap, while the pedestal is paneled and filled with a guilloche ornament. The cornice is of cast-iron, molded and ornamented with a dentil course, as shown on the interior elevation, while on the back it is finished with small moldings top and bottom, which return as indicated by the dotted lines n. The dome plates are mitered at the angles and paneled on the inside face. The miters are covered by bronze spool-and-reed moldings, and the panel molding is decorated with a leaf link. The dome plates are secured to the vertical leg of an angle o, which is riveted to the top of the cornice of the car; and the cast-iron cornice of the dome is supported by these dome plates. The soffit of this dome cornice is decorated with a guilloche and flower rosette, as shown at p in the plan; while its facia and corona are supported on modillion brackets, as shown at q. The dome grille r is designed suggestive of the usual treatment of a ceiling, being first divided in panels, which are afterwards filled with a circle, and the circle with a quarterfoil of scrolls. This grille is set in an angle-iron frame, which is bolted to the cornice. The swinging door shown in the plan at s is seen in elevation at (d). The pivots s are riveted to the frame of the grille, the top one being inserted in the cornice and the bottom one in the pivot plate t. The top and bottom of the post u are fitted with spring bolts, which are withdrawn when the section is to be opened. By a careful inspection of the details of the preceding examples, the construction of elevator cars should now be fully comprehended; and, as such work does not differ materially, the student should be able to design the construction details of any car required.
55. In Fig. 76 is shown a design for an elevator car entirely of wrought iron. The grille differs from the previous examples, as it has no border, but is divided into a dado, field, and frieze. The dado is composed of an interlaced leaf; the field has a cartouche with a fleur de lis in the center, and the frieze with an interwoven pattern ending in scrolls. The panels which take the place of the cornice are filled with scrolls, and decorated with leaves having a flower or bud at the center. The grille of the dome is in motive similar to the honeysuckle-link decoration used in classic architecture. The car illustrated at Fig. 77 is wrought iron; the dado is a diaper of basketwork. The grille by the arrangement of the scrolls does away with a border top and bottom, but, as it is divided into three panels having the bars gathered reed fashion, it is necessary that a border be provided to close the space at the sides. The rods forming the reeds are separated by button washers and riveted together. The dome of this car is circular in plan, divided into a series of radiating panels finished at the bottom with a link-scroll design and at the top with rings. The crown of the dome has the scrolls so arranged that they form a natural continuation of the panels.