Apparatus for photographic developing

Claim 1

PHOTOGRAPHIC DEVELOPING APPARATUS COMPRISING: AT LEAST ONE TREATMENT TANK; A VERTICALLY-MOVABLE SUPPORT BAR AT EACH SIDE OF SAID TANK; A CARRIER ROD RESTING ON SAID SUPPORT BARS; AN ARM FIXED TO AND EXTENDING FROM SAID CARRIER ROD; A CARRYING DEVICE PIVOTALLY MOUNTED ON SAID ARM; A LONGITUDINALLY RECIPROCABLE TRACTION BAR ABOVE AND GENERALLY PARALLEL TO EACH SUPPORT BAR; A CAM ON EACH END OF SAID CARRIER ROD, SAID CAM BEING ENGAGEABLE WITH SAID TRACTION BAR UPON LIFTING OF SAID SUPPORT BAR TO EFFECT ROTATION OF SAID CARRIER ROD AND CONSEQUENT LIFTING OF THE CARRYING DEVICE ON THE END OF THE ARM; PROJECTIONS ON EACH OF SAID TRACTION BARS TO ENGAGE SAID CAMS WHEN IN THEIR RAISED AND TURNED POSITION AND THEREBY DRAW SAID CARRIER ROD ALONG SAID SUPPORT BARS; AND DRIVE MECHANISM FOR LIFTING AND LOWERING SAID SUPPORT BAR AND RECIPROCATING SAID TRACTION BAR IN SYNCHRONISM TO LIFT AND TRANSPORT THE PHOTOGRAPHIC MATERIAL CARRIED BY THE CARRYING DEVICE INTO AND OUT OF SAID TANK.