Motion Picture Herald (Jan-Feb 1945)

A HANDY ADJUSTABLE SHELF 3/ Here is a layout of an ad• justable storage shelf that will keep various items always in an orderly manner. Such a shelf can be constructed of regular wood, or plywood. It is simple in its make-up. The one end of the shelf is fastened permanently, while the other end is made adjustable to slide in or out, according to the amount of material to be stored. The adjustable end can be made to slide in grooves or just between the two support runners. This type of shelf is very handy for keeping looseleaf material, such as magazines, catalogs, etc., that will not stand by themselves; by moving the one end up against them they are held firmly in place. This type of shelf also could be very useful in the projection room, especially for the storage of carbons. As the cartons of carbon were removed, the adjustable end could be pushed tightly against the remaining ones, thus preventing accidental falling of the carbons off the shelf. For use in the projection room, however, the shelf should be covered with tin or other metal. a good erection job it must be lined with planished wood or timed copper, there will be a bad chemical action in the water if sheet lead, zinc or galvanized iron is used for the lining. FINAL TEST OF SYSTEM In the final testing of a plumbing system, there are certain procedures to be followed before final approval. It is customary under codes that the entire plumbing pipe work and draining system be proved by a rigid watertest. All pipes must remain uncovered in every part of the system until they have successfully passed this test. All openings must be securely closed as directed by the plumbing inspector; the use of wooden plugs for this purpose is prohibited. This water-test is applied by closing the lower end of the main theatre drain, then filling the pipes with water to the highest opening above the roof. The theatre drain and branches, all vertical and horizontal soil, waste and vent and leader pipe lines, and other branches, to a point above the surface of the finished floors and beyond the finished walls, must have the water-test and at the same time. If the drain or any part of the piping system is to be tested separately, a head of at least 6 feet of water above all parts of the work to be tested is usually employed. All joints and connections in the piping receive at least one water test. In some instances after completion of the plumbing work, a final smoke-test is applied in the presence of the plumbing inspector and as directed by him. When the smoke=-test is applied to the system any loose or ill-fitting joints or connections will make themselves known by the escape of smoke at the defective points. In some cases the peppermint-test is also applied, in which 2 ounces of oil of peppermint is provided for each pipe line up to about 40 feet in length. When the pipe lines are more than 40 feet, an additional ounce of oil of peppermint is provided for each line. With this peppermint-test all defective points in the piping system can be easily detected by the escape of the peppermint odor. Aluminum Display Frames Available Extruded aluminum display frames of the type marketed under the trade-name "Seal i uxe" are again available, it is announced by^ National Theatre Supply, exclusive distrib-f utors. The manufacturer, the UniversalCorporation of Dallas, Tex., also provides a complete designing service for arranging displays according to a' specific lobby and foyer plan and in harmony with the decorative style. The frames are obtainable in a variety of colors as well as in the natural alumilite. r Besides the wall-recess model shown in the j' accompanying picture, the line includes unre j cessed wall style, and 8 x 10 still insert easel ; frames, of similar construction and finish. The wall frames come with or without date strips, ' and with or without provisions for lighting. ' 16 BETTER THEATRES, JANUARY 6, 1945