portion 22 u2032 of the chair lifting members 18 u2032 although the handle 40 u2032 could be attached to the chair support member 24 u2032 or even the frame 12 u2032 a lifting member 50 u2032 which is preferably a hydraulic pump is secured to the frame 12 u2032 and more particularly to the two cross members 52 u2032 54 u2032 the lifting member 50 u2032 is also connected to the u shaped element 56 u2032 which is connected to the links 28 u2032 when the lifting member 50 u2032 is activated typically by the foot pedal 58 u2032 it pushes upward on the u shaped element 56 u2032 which in turn pulls the links 28 u2032 upward the links 28 u2032 in turn pull upward on the chair members 18 u2032 thereby lifting the chair members 18 u2032 the front portion 20 u2032 of the rear chair member 18 u2032 is attached to the rear portion 22 u2033 of the front chair member 18 u2033 so that the movement of the rear chair member 18 u2032 causes the movement of the front chair member 18 u2033 while the front portion 20 u2032 of the rear chair member 18 u2032 is attached to the rear portion 22 u2033 of the front chair member 18 u2033 in a center portion thereof the attachment point of the two chair members 18 u2032 18 u2033 may be positioned to one.