Abstract: A height-adjustable workstation main frame includes a pair of telescoping, adjustable legs and a rigid yet efficient fixing frame carried by the upper portions of the legs to provide lateral stability, increased weight bearing capacity and functional flexibility. The same telescoping leg structure is adaptable to receive a motor drive, a manual crank lift or a manually adjusted mechanism for establishing the desired height of the table top. Fore and aft stability is increased by the shape and interengagement of the telescoping inner and outer leg weldments and the use of duplicate, laterally aligned bearing slide assemblies interconnecting the inner and outer leg weldments of each telescoping leg.
Abstract: A storage cabinet with a plurality of drawers has an interlocking mechanism which prevents more than one drawer being opened at any time. A vertical U-shaped support rail is located in the back of the cabinet, and vertical locking bars are disposed therein. Each locking bar pivots between two angular positions, and at least one shuttle mounted in the support rail confines the locking bars to a restricted range of pivoting, and requires that their pivoting be simultaneous. A spring bias on the shuttle forces the locking bars into one of two spring-biased pivot positions. In a first position, all the drawers are closed, and are free to be opened. The opening of a drawer causes a camplate attached to the drawer to shift the locking bars from the first pivot position to the second pivot position. In the second position, the unopened drawers are locked due to the obstruction of the camplates of the unopened drawers by one of the locking bars.
Abstract: A storage cabinet with a plurality of drawers has an interlocking mechanism which prevents more than one drawer being opened at any time. A vertical U-shaped support rail is located in the back of the cabinet, and vertical locking bars are disposed therein. Each locking bar pivots between two angular positions, and at least one shuttle mounted in the support rail confines the locking bars to a restricted range of pivoting, and requires that their pivoting be simultaneous. A spring bias on the shuttle forces the locking bars into one of two spring-biased pivot positions. In a first position, all the drawers are closed, and are free to be opened. The opening of a drawer causes a camplate attached to the drawer to shift the locking bars from the first pivot position to the second pivot position. In the second position, the unopened drawers are locked due to the obstruction of the camplates of the unopened drawers by one of the locking bars.