Patent ID: 6929049

Claim:
Structure ( 10 ) for a glass-enclosed chamber ( 9 ) formed of a quadrangular frame ( 11 ) consisting of four channel-shaped pieces ( 15 - 18 ), an upper one ( 18 ), a lower one ( 15 ) and lateral ones ( 16 , 17 ) and angular joining parts ( 20 ) and comprising a blind ( 80 ) supported by an oblong box ( 50 ) inside the glass-enclosed chamber and worked by a device with an electric motor inside said box, wherein the device inside the box ( 50 ) is electrically connected to a first means ( 60 ) for electrical connection placed at one end of said boxy ( 50 ) and so shaped as to permit conjunction with a second means ( 38 ) for electrical connection to an electrical feed and control device outside the glass-enclosed chamber, said second means ( 38 ) being situated in an angular connection ( 30 ) of the frame ( 11 ) at said end of said box ( 50 ), determining conjunction between the first ( 60 ) and the second ( 38 ) means for electrical connection consequent upon matching the top of the box ( 50 ) with the upper channel-shaped piece ( 18 ) of the frame ( 11 ) wherein the first means ( 60 ) is a socket ( 60 ) for electrical current with two bushings ( 65 ) placed vertically and crosswise to the box ( 50 ), the top being substantially flush with its edge, electrically connected to the device with electric motor inside said box ( 50 ) while the second means ( 38 ) is an electric plug ( 38 ) with vertical pins ( 40 ) facing downwards on a base ( 31 ) of insulating material forming part of the angular connection ( 30 ) for joining the upper channel ( 18 ) with one lateral channel ( 17 ) of the frame ( 11 ), said base ( 31 ) having at one end a horizontal extension ( 32 ) to be fitted inside the upper channel ( 18 ) of the frame 11 , and at the other end, a vertical extension ( 36 ) to be lifted into the lateral channel ( 17 ) of said frame ( 11 ), the positions of the socket ( 60 ) and of the plug ( 38 ) being such that the geometrical axes of the bushings ( 65 ) on the socket and of the pins ( 40 ) on the plug coincide, the pins ( 40 ) having an extension above the base ( 41 ) that forms terminals ( 41 ) with a crosswise hole ( 43 ) and locking screw ( 42 ), so that by matching the top of the box ( 50 ) with the upper channel ( 18 ) of the frame ( 11 ), the pins ( 40 ) of the plug enter the bushings ( 65 ) of the socket permitting, by application of electric wires ( 48 ) to said terminals ( 41 ), electrical connection between the device inside the box ( 50 ) and the electrical feed and control device outside the glass-enclosed chamber.