Abstract: A lumbar support structure comprises a resilient grid formed of flexible vertical members and horizontal cross members. The grid is fixed in a seat, such as a car seat, and includes an upper back section and lumbar section. The lower end of the lumbar section is fixed and the upper end of the lumbar section is free and is coupled to cables connected to a cable wheel and clutch mechanism. Clutch mechanism rotates to wind the cable wheel and draw the cables to pull the free end of the lumbar section downward toward the fixed end. The lumbar section is bowed forwardly in the seat to provide lumbar support. The clutch mechanism comprises a clutch and locking pin which cooperate to rotate the cable wheel in both directions for adjusting the lumbar support. When the selected position for the lumbar support is chosen, the clutch is locked to maintain the bowed grid in a selected shape.

Abstract: A device for maintaining a luminaire support ring centered about and stabilized on a pole as it is being raised and lowered along the pole. A plurality of spaced stabilizing arms are pivotally mounted on the support ring and are biased into engagement with the pole by individual cables which also provide the raising and lowering means for the support ring. The cables provide a constant centering and stabilizing force exerted by the arms against the pole throughout the vertical travel of the support ring uneffected by changes in pole diameter. Tapered rollers mounted on the arms engage the pole to provide a lower friction sliding engagement therebetween. The arms also extend a predetermined distance beyond the pole engaging rollers to maintain the pole trapped between the arms should the support ring move off-center from the pole.

Abstract: The trash compactor of the present invention utilizes a three piece toggle linkage mechanism for moving the compactor blade from its inoperative to its operative position. The toggle linkage includes a frame link hinged to the frame of the compactor, a primary link hinged to the frame link, and a blade link pivotally connected to the primary link and also pivotally connected to the compactor blade. Hydraulic cylinders are operatively connected to the linkage mechanism for causing movement of the compactor blade from its initial position to its compacting position. Another feature of the trash compactor, includes a counterbalance mechanism for the door to the compactor, the counterbalance mechanism being adapted to neutralize the weight of the door throughout the swinging movement of the door from its open to its closed position. A safety interlock is engaged by a cam plate on the door so that the hydraulic system is inoperative whenever the door is open. Structure is included for avoiding back packing.

Abstract: The trash compactor of the present invention utilizes a three piece toggle linkage mechanism for moving the compactor blade from its inoperative to its operative position. The toggle linkage includes a frame link hinged to the frame of the compactor, a primary link hinged to the frame link, and a blade link pivotally connected to the primary link and also pivotally connected to the compactor blade. Hydraulic cylinders are operatively connected to the linkage mechanism for causing movement of the compactor blade from its initial position to its compacting position. Another feature of the trash compactor, includes a counterbalance mechanism for the door to the compactor, the counterbalance mechanism being adapted to neutralize the weight of the door throughout the swinging movement of the door from its open to its closed position. A safety interlock is engaged by a cam plate on the door so that the hydraulic system is inoperative whenever the door is open.