S&c Electric Company

Joseph P Moninski, Jr

Edmund S Dizon

Chester Bar

An article mounting and handling arrangement is provided for use with an enclosure to allow access to and replacement of the articles in a position removed from the operating environment. The arrangement is especially adapted for fuses and other electrical devices. Accordingly, the arrangement for use with fuses provides access to the fuses in a position disconnected from an associated circuit and to provide connection of the fuses to the associated circuit in an inaccessible position. The fuse mounting and handling arrangement is mounted with respect to the enclosure for translation along a predetermined direction between a first, accessible position outside the enclosure and a second position with the fuses being within the enclosure. The fuse mounting and handling arrangement is also pivotally mounted with respect to an axis parallel to the direction of translation. The fuses are connected into the circuit through appropriate contacts by pivoting the fuse mounting and handling arrangement about the axis from the second position to a third position. In one particular application, one side of the fuses is selectively connected to respective switched contacts. In that application, an interlock arrangement is provided to prevent pivoting of the fuses between the second and third positions when the switch contacts are closed to the fuse contacts. The fuse mounting and handling arrangement also includes apparatus to prevent pivoting of the fuses when the arrangement is between the first and second positions and to prevent translation when the fuses are pivoted between the second and third positions. The arrangement also includes wall members that provide a barrier to prevent access into the enclosure when the fuses are in the first, second or third position.

Article mounting and handling method and apparatus

A mounting for an article, such as a high-voltage fuse. The article may be located inaccessibly behind a wall or accessibly in front of the wall. The wall may form a part of an enclosure and contains an opening. The article is affixed to one surface of a panel. The panel is attached to the wall so that it may be simultaneously moved and translated (or pivoted) end-for-end (or side-for-side) relative to the opening to selectively move the article between its two locations. The panel covers or blocks the opening in both locations of the article. The panel may be attached to the wall by rollers mounted at or near one end of the panel and by links pivotally connected between the wall and the panel. The rollers are guided to move generally along or coplanarly with the opening by channels on the wall adjacent to the opening. In this way, substantially all of the movement and translation of the panel may occur in front of the wall.

Mounting for an article which permits movement thereof between

A door interlock for electrical apparatus, which may include a switch, within an enclosure, permits the door of the enclosure to be opened only if the electrical apparatus is in a predetermined condition, such as switch-closed. Once the switch has been opened, the door may be opened. The interlock prevents the switch from being reclosed as long as the door is open. A latch holds the door closed if the switch is closed, if the door is locked closed by a door lock, or if both conditions obtain. If the switch is opened while the door is locked closed by the door lock, the latch continues to latch the door closed. If the door lock is unlocked while the switch remains closed, the door latch likewise latches the door closed.

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Northbrook, IL, United States of America

Joseph P Moninski, Jr