Chair

Claim 1

A chair having a base portion and a seat frame, means for raising and lowering the seat frame relative to the base portion as the seat frame remains at the same angle relative to the horizontal during said raising and lowering, and guide means on each side of said base portion to guiding the seat frame on a path relative to the base portion which path is inclined to the vertical so that the raising and lowering movement is accompanied by forwards and backwards movement respectively of said seat frame relative to said base portion, said seat frame comprising a pair of spaced, elongated members slideably guided on each side of said base portion, a pair of horizontal rods transversely joining the front and rear members of each said pairs of members relative to the plane of each pair of members, a seat member pivotally mounted on the foreMost of said rods and freely resting on the rearmost rod whereby the seat member may lift relative to the rearmost rod, an armrest joining each pair of elongated slideable members to move with said seat frame, said raising and lowering means comprising a plurality of motor driven cable drives with cables connected to said elongated members on the seat frame.