The common or English type of Venetian blind consists of a series of thin wooden slats 2 or 2½ inches wide, arranged laterally in woven ladder tapes, suspended from the top and connected by cords which raise or lower the slats or tilt them as desired. It is practically a window shade hanging free, but made of wooden slats instead of cloth.
This blind is very extensively used in England and on the continent of Europe, and to a considerable extent in this country. It possesses an advantage over all other types of wooden blinds in that it may be easily fitted to any window, although it can be used to better advantage in windows having sub-jambs. The admission of light and air is almost perfectly regulated and controlled, as part of the slats may be opened while the others are closed, or the blind may be drawn up so as to uncover the larger portion of the window. [When drawn up a blind 7 feet high will take up a space of about 11 to 12 inches with 3-inch slats, and 10 to 11 inches with 2½-inch slats.]
* Details and descriptions of various arrangements for enclosing the coils will be found in the catalogue of James Godfrey Wilson, New York City.
The common form of Venetian blind is made by several manufacturers in this country, and the general appearance, construction and manipulation is much the same in the different makes, the variations being in the method of hanging and applying to the window and in
Fig. 263 - Wilson's Venetian Blinds, Showing Roller.
For the best blinds metallic ladders, hinged to shut up like the tape, are used, being more ornamental, and, it is claimed, more durable. In the manner of fixing the blind to the window finish each manufacturer has a special method. Thus the Victoria blind, Fig. 264, has a flat head piece 2 inches wide, which can be screwed to the stop bead at the top of the window when the latter is 1 3/8 inches wide, or to the under side of the head casing, where there are sub-jambs. It may also be fastened to the face of the window casings by small brackets.
Most Venetian blinds, however, have a roller or rocking bar at the lop, of which one make is shown in Fig. 263, and to this roller or bar the cords for raising or tilting the slats are attached. These bars are usually attached only at the ends, which fit into sockets or hangers screwed to the side of the sub-jambs or to blocks set against the pulley stiles.
One make, "The Burlington," has sockets very much like those used for cloth shades, and which can be put up either on the stop beads, jamb casings or on the face of the casings.
The best methods of putting up Venetian blinds, however, of any make, are those shown in Figs. 265-267. In residences where there are sub-jambs it is well to form an open pocket behind the head casing, so that the rocking bar will be concealed and also to lessen the exposure of the blinds when drawn up. In other buildings this is not essential. The width, W, varies with different makes of blinds, 3 inches being usually sufficient for 2-inch slats, although a space of 4½ inches is much better, as a narrower space is apt to wear the tapes. In frame buildings and in 9-inch brick walls the method shown in Fig. 267 is believed by the author to be the neatest, unless a pocket is desired. By this method a block B, about 5/8 inch thick, is screwed to the face of the pulley stile next to the inner sash, and the stop beads are cut against it. If the distance from the sash to the edge of the pulley stile is less than that shown in the drawing, the block may be allowed to project, as shown by the dotted lines, the blinds hanging free like a cloth shade; it is not necessary that they come between the stop beads. The dimensions given in Figs. 265 and 267 are for the Wilier Venetian Blinds with 2-inch slats, R showing the position of the rocking bar. Fig. 266 shows the roller of the Wilson blinds.
Besides the common or English type, there are variations in the way of sliding Venetian blinds, in which the bottom piece slides up and down in grooved runways attached to the jamb casings, and also a type in which the blind is balanced by weights, the action of the blind in other particulars being practically the same as in the common type.
Fig. 264. - Victoria (Venetian) Blinds .
176. Selection of Inside Blinds- - When making a choice of inside blinds for a given building the special advantages of the different kinds and the adaptability to the depth of the window and the character of the room should be carefully considered, and also the preference of the owner. For controlling the admission of light and air, there does not seem to be much choice between the sliding blind with movable slats and the Venetian blind, both of which are superior in these respects to shutters. On the other hand shutters afford a better protection from cold, and with thick walls they are susceptible of a neater arrangement of the finish, and in dwellings, particularly, the appearance of the window from the inside is a very important consideration.
The comparative cost of the different types of blinds for a window of average size (sash, 3x6½ feet), natural pine finish, is about as * follows, considering the blinds alone and without regard to the cost of the frame or finish :
Folding blinds, raised panels and patent movable slats.....
Common folding blinds................
Best quality of sliding blinds (with springs).........
Rolling blinds (Wilson' s).................
English Venetian blinds...............................
Willer's Favorite Sliding Venetian Blind....................
It should be remembered, however, that it will cost more to fit up the window for folding shutters, that is if paneled pockets are provided, than for either of the other kinds of blinds.