Portable rock crushing plant

Claim 1

IN A PORTABLE CRUSSING PLANT FOR AGGREGATE AND THE LIKE, A MOBILE FRAME, A CRUSHER MOUNTED ON SAID FRAME INTERMEDIATE THE ENDS THEREOF, AN INCLINED ELEVATING CON VEYOR IN MATERIAL RECEIVING RELATION WITH RESPECT TO SAID CRUSHER AND EXTENDING ALONG SAID FRAME IN UPWARDLY INCLINED PLANE BEYOND THE FORWARD END THEREOF, A GRIZZLY IN MATERIAL DISCHARGE RELATION WITH RESPECT TO SAID CRUSHER, AN APRON FEEDER SPACED ABOVE SAID GRIZZLY, A MOVABLE PLATFROM AT THE REAR OF SAID MAIN FRAME FORMING A SUPPORT FOR SAID APRON FEEDER, A SECOND PLATFORM SPACED BENEATH SAID FIRST PLATFORM AND FORMING A SUPPORT FOR SAID MOVABLE PLATFORM, SUPPORTING SAID PLATFORM BENEATH THE TOP OF SAID GRIZZLY UPON TRAMMING OF THE PLANT FROM LOCATION TO LOCATION, A FIXED ABUTMENT ENGAGED BY SAID MOVABLE PLATFORM WHEN SAID FEEDER IS INPOSITION TO DISCHARGE, ROCK ONTO SAID GRIZZLY, MOVABLE SUPPORT MEANS FOR SAID MOVABLE PLATFORM, INCLUDING PARALLEL LINKS TRANSVERSELY PIVOTED AT THEIR LOWER ENDS TO SAID SECOND PLATFORM AND AT THEIR OPPOSITE ENDS TO SAID MOVABLE PLATFORM, AND EN EXTENSIBLE POWER MEMBRANE CONNECTED BETWEEN SAID MAIN FRAME AND SAID FIRST PLATFORM FOR VERTICALLY MOVING SAID FIRST PLATFORM AND SAID APRON FEEDER ABOUT SAID PARALLEL LINKS INTO DIRECT ENGAGEMENT WITH SAID FIXED ABUTMENT, SAID PARALLEL LINKS BEING OVERCENTER WITH RESPECT TO THEIR AXES OF CONNECTION TO SAID FIRST PLATFORM, WHEREBY THE WEIGHT OF SAID APRON FEEDER AND PLATFORM WILL HOLD SAID PLATFORM INTO ENGAGEMENT WITH SAID FIXED ABUTMENT.