Braking roller or wheel

Claim 1

IN A MECHANICAL GOODS HANDLING SYSTEM OF THE KIND COMPRISING AN INCLINED TRACK, A GOOD CARRIER ADAPTED TO MOVE UNDER GRAVITY DOWN SAID TRACK, AND MEANS SUPPORTING SAID GOODS CARRIER DURING SAID MOVEMENT; THE IMPROVED SUPPORT MEANS WHICH COMPRISES A ROTARY MEMBER ROTATABLY CARRIED BY ONE AND PERIPHERALLY ENGAGING THE OTHER OF SAID CARRIER AND SAID TRACK, SAID ROTARY MEMBER COMPRISING A RECESSED PORTION WHICH TURNS THEREWITH, MEANS DEFINING WITH SAID RECESSED PORTION A CLOSED CHAMBER, FIRST AND SECOND MESHING GEAR WHEELS WITHIN SAID CHAMBER WHICH FORM WITH SAID CHAMBER A GEAR PUMP, SAID FIRST GEAR WHEEL BEING CARRIED ON A FIXED AXIS AND SAID SECOND GEAR WHEEL BEING CARRIED BY SAID ROTARY MEMBER AND MOUNTED TO ROTATE WHEN SAID ROTARY MEMBER ROTATES WHEREBY SAID PUMP IS DRIVEN AND A MASS OF HYDRAULIC FLUID SUBSTANTIALLY FILLING SAID PUMP CHAMBER FOR CONTINUOUS CIRCULATION BY SAID PUMP WHEREBY THE RESISTANCE OF SAID FLUID TO THE ACTION OF SAID PUMP PROVIDES A BRAKING EFFECT.