Decelerating mechanism for loads

Claim 1

A LOAD DECELERATING MECHANISM COMPRISING A MAIN CYLINDER, SUPPORT BRACKET MEANS ON THE EXTERIOR OF THE MAIN CYLINDER FOR ATTACHING IT TO A FIXED SUPPORT AND A TRANSFER CABLE FOR A LOAD, A GUIDE SLEEVE WITHIN ONE END PORTION OF THE MAIN CYLINDER AND BEING OF REDUCED DIAMETER AND DEFINING WITHIN THE MAIN CYLINDER A STOP SHOULDER, A MAIN PISTON WITHIN THE BORE OF THE MAIN CYLINDER INWARDLY OF SAID SHOULDER AND HAVING A THROUGH OPENING, AN EXTENSION TUBE SECURED TO THE MAIN PISTON AND SLIDABLY ENGAGING THE BORE OF SAID GUIDE SLEEVE AND PROJECTING EXTERIORLY OF THE MAIN CYLINDER AND GUIDE SLEEVE, A SECONDARY PISTON WITHIN THE EXTENSION TUBE AND HAVING A THROUGH BORE AND A REDUCED HUB PORTION ENGAGEABLE WITHIN SAID THROUGH OPENING OF THE MAIN PISTON IN SPACED RELATION THERETO, THE SECONDARY PISTON BEING ENGAGEABLE IN ONE POSITION THEREOF WITH ONE END OF THE MAIN PISTON, A GRADUALLY TAPERING METERING PIN HAVING A SHOULDER AND AN AXIAL ROD EXTENSION WITHIN THE INTERIOR OF THE MAIN CYLINDER, SAID ROD EXTENSION ENGAGING SLIDABLY THROUGH THE BORE OF THE SECONDARY PISTON, MEANS ANCHORING SAID METERING PIN WITHIN THE MAIN CYLINDER AND FORMING A FLUID SEAL BETWEEN THE PIN AND THE BORE OF THE MAIN CYLINDER, ADDITIONAL MEANS FORMING FLUID SEALS BETWEEN THE SECONDARY PISTON AND THE BORE OF THE EXTENSION TUBE AND SAID ROD EXTENSION, A COMPRESSION SPRING WITHIN THE EXTENSION TUBE AND ENGAGING THE SECONDARY PISTON, AND A MASS OF LIQUID WITHIN THE BORE OF THE MAIN CYLINDER BETWEEN THE SECONDARY PISTON AND SAID ANCHORING AND SEALING MEANS FOR SAID PIN, SAID HUB PORTION OF THE SECONDARY PISTON ENGAGEABLE WITH THE SHOULDER OF SAID PIN IN ONE POSITION OF THE SECONDARY PISTON.