Imágenes de páginas
PDF
EPUB

sometimes worked round to form a bead, as shown by the dotted lines. The bars of the upper and lower sashes are kept separate by, and made to slide up and down in the groove, or recess formed by a piece of wood called the "parting bead," as j, fig. 3, Plate XIV. All these pieces run from top to bottom of the window opening, being secured at bottom to the sill, at top to the head of the framing (see figs. 2 and 5, Plate XIV.) The reader will, of course, understand that the arrangement shown at fig. 3 is repeated in the case of an ordinary sash window, such as a in fig. 75; each end of the same sash being hung to a balance weight, corresponding to cd in fig. 3, Plate XIII. Fig. 1, in this plate, is the front elevation of a "three-light window;" when the central part, a a, of a window of this sort is much wider than the side parts, the arrangement is called a "Venetian window." Fig. 4 is plan of the part, dd, of fig. 1, Plate XIV., one side of which covers the " casing? or "casing pieces" of the right-hand side bars of window, b b, fig. 1 (fig. 3 showing the casing bars for left-hand bars of window); while the other side of the central line, a b, fig. 4, covers the casing pieces of the left-hand side of window, c c, the right-hand casing pieces of this being precisely like the drawing in fig. 3, only reversed in position-that is, with the "back lining," bb, towards the right hand, in place of to the left, as in fig. 3, Plate XIII. In fig. 4, c d, the "pulley pieces" or "pulley styles;" e e, "outside lining;"f," inside lining;" gg, "inside bead;" hh, "outside bead;" ii, "parting bead;"jj, the "sash weights" (double for the two windows, b b and a a, fig. 1), separated by the "parting slip" made in the form of a cross, as shown. In fig. 77, the part of the lower or bottom bar of a sash window is shown, e e being the beaded "inside lining," corresponding to i in fig. 3, Plate XIV.; ii, the "parting slip" or "bead," corresponding to j, fig. 3, Plate XIV.; and jj, fig. 77, the "outside lining," corresponding to f, fig. 3, Plate XIV. In fig. 78, the meeting of the sash bars of the lower sash, a

(corresponding to e in a, fig. 75), and upper sash, b (corresponding to d in a, fig. 75), is shown,-d, the upper

Fig. 78.

ing slip" "or bead." of upper sash; the figs. 77 and 78.

h

Fig. 79.

cross bar or rail of lower sash, corresponding to e in a, fig. 75, and the lower rail of which is at d d, fig. 77; d', the lower cross bar or rail of upper sash, corresponding to din a, fig. 75. The upper and lower halves are technically term ed "sheets," e e, hh, ii, jj correspond to same parts as in fig. 77, e e, being the "inside lining; ij, the "outside lining;" i i, the "partIn fig. 79, c is the upper or cross bar letters indicate similar parts as in

[graphic]

The panes of glass of a sash window are fastened to the " astragals " or "sash bars," which are so placed as to form squares or rectangles, as shown in fig. 75. The forms or sections of the "sash bars" vary much, accord

ing to the design of the building, or taste of the architect. A very common form is illustrated in fig. 80, at a a, which is known as the "lamb's tongue sash bar." The

glass is shown at bb towards the outside, being secured at a and d by putty, c c, or by a small bead or fillet, i, same figure. ff, g g is the front elevation, showing the d

[ocr errors][ocr errors][merged small][merged small][merged small][ocr errors][ocr errors][merged small][merged small]

junction of a vertical sash-bar, ff, with a horizontal one, gg. Another form of sash bar is shown at h h, in fig. 80, and at a a, in fig. 81. In fig. 82, the junction of the horizontal bars, b b, d d, with the vertical, a a, c c, are shown. a a, b b being the front elevation of a a in fig. 81; cc, d d of h h in fig. 80.

28. Shutters to Windows.-These are generally provided to windows, and are of several kinds-" folding," "lifting," and "rolling." Folding shutters are illustrated

in fig. 83, which are those for a superior room, as they fold into and are inclosed by what are called "shutter boxings." The boxing is made up of two side linings and a back lining. The side lining next the window is in fact the "inside lining" of the window casing, part of which

[graphic]

is shown by the line a a, fig. 83. The other side of the shutter boxing is at b b, and the "back lining" is at c c.

[graphic][subsumed][merged small][merged small]

The side, bb, forms the "ground" to which the "architrave," d d, is secured; e e, the plastering keyed into the side lining of boxing. In superior work the back lining is panelled at f, to show finished work when the folding shutters-called "flaps "-as g g, h h, i i, are pulled

out in order to cover the window. The front of the shutters, as g g, is called the "front flap" or "first flap ;" hh, the "second back flap;" i i, the "back flap." The "front flap" is generally panelled in front, so that-as in the day time—when the shutters are in their place in the boxing, the front or outside of g g may be ornamental. If the flap is very broad, it may be pannelled in two. Fig. 83 is a cross section of the shutter and shutter boxing, showing the thickness of the pieces. In elevation the length of the shutter would show equal to the height of the window to be covered. The bottom of the shutters slide above, and rest a little above upper face of inner sill. The arrangement shown in fig. 83 is of course repeated at the other side of the window, the shutter flaps being of such a width that they cover only half of the breadth of the window, the other half being covered by the flaps in the boxings at the other side. forms of shutters will be found, described and illustrated, in Building

Other

Fig. 83. Construction, Advanced Course, in this series.

29. Hinging of Doors and Windows.-The hinging of doors is a work involving considerable nicety in laying out the lines for the joints of the various parts; and

« AnteriorContinuar »