Motion Picture ProjectionCameron Publishing Company, Incorporated, 1928 - 1272 páginas |
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Términos y frases comunes
adjustment alternating current ammeter amperes amplifier angle aperture plate arc control arc lamp armature attached battery bearing bracket brightness brushes cell circuit clamp coils color commutator connected crater diameter direct current disc dowser effect electrical electromotive force equipment fader feed filament film trap frame front fuse gear handle heat holder holes illumination inches installed intermittent movement intermittent sprocket knob lamphouse lenses lever light source located loosen lower machine magnetic mechanism metal meter mirror motion picture motor motor-generator mounted moving negative carbon obtained operation optical panel Phonofilm placed positive carbon projection lens projection room projectionist projector proper reel reflector remove resistance result rheostat roller screen set screw shaft short circuit shutter side slide socket sound speed control spindle stereopticon supply surface switch switchboard take-up tension theatre tighten tion Transverter tube turn unit upper voltage volts wire
Pasajes populares
Página 530 - A fire wall built of brick shall separate the auditorium from the stage and the same shall extend at least four feet above the stage roof, or the auditorium roof, if the latter be the higher, and shall be coped. Above the proscenium opening there shall be an iron girder...
Página 1106 - ... but all said coils and radiators shall be placed in recesses formed in the wall or partition to receive the same. All supply, return, or exhaust pipes shall be properly incased and protected where passing through floors or near woodwork.
Página 1091 - The said open courts and corridors shall not be used for storage purposes, or for any purpose whatsoever except for exit and entrance from and to the auditorium and stage, and must be kept free and clear during performances.
Página 38 - Required resistance : 150 : : (.010)' : (.022)' or, Required resistance = 150 X 7750571 = 30.99-)- ohms. For a wire 400 feet long, we have, therefore, by direct proportion, Required resistance = . -X 30.99 = 6.88+. l,oUU Ans. 6.88+ ohms. If a circuit is made up of several different materials joined in series with each other, the resistance of the circuit is equal to the sum of the resistances of its several parts. In calculating the resistance of such a circuit, the resistance of each part should...
Página 1080 - ... a fine of not less than fifty dollars and not more than five hundred dollars or by imprisonment in the county jail for a term not exceeding one hundred eighty days, or by both such fine and imprisonment.
Página 1106 - Every portion of the building devoted to the uses or accommodation of the public, also all outlets leading to the streets, and including the open courts and corridors, shall be well and properly lighted during every performance, and the same shall remain lighted until the entire audience has left the premises.
Página 1109 - The outer line of landings shall be curved to a radius of not less than two feet, to avoid square angles. Stairs turning at an angle shall have a proper landing without winders introduced at said turn. In stairs, when two side flights connect with one main flight, no winders shall be introduced, and the width of the main flight shall be at least equal to the aggregate width of the side flights. All stairs shall have proper landings introduced at convenient distances. All inclosed staircases shall...
Página 1107 - Buildings, and shall be suspended for ten feet by wire rope. All ducts or shafts used for conducting heated air from the main chandelier, or from any other light or lights, shall be constructed of metal and made double, with an air space between.
Página 1109 - When straight stairs return directly on themselves, a landing of the full width of both flights, without any steps, shall be provided. The outer line of landings shall be curved to a radius of not less than two feet to avoid square angles.
Página 1106 - Every steam boiler which may be required for heating or other purposes shall be located outside of the building, and the space allotted to the same shall be inclosed by walls of masonry on all sides, and the ceiling of such space shall be constructed of fireproof materials. All doorways in said walls shall have fireproof doors.