Portable crushing plant

Claim 1

IN A CRUSHING PLANT; (A) MEANS PROVIDING A FORE-AND-AFT EXTENDING FRAME; (B) AN ELEVATOR CARRIED BY THE FRAME INTERMEDIATE THE FRONT AND REAR ENDS THEREOF, SAID ELEVATOR HAVING A LOW LEVEL RECEIVING PORTION AND A HIGHER LEVEL DISCHARGE PORTION; (C) A FIRST CRUSHER MOUNTED ON THE FRAME MEANS BETWEEN THE REAR END THEREOF AND THE ELEVATOR AND HAVING AN INLET AT ITS TOP AND AN OUTLET AT ITS BOTTOM; (D) MEANS FOR DIRECTING COARSE MATERIAL TO BE CRUSHED INTO THE INLET OF SAID FIRST CRUSHER; (E) A FIRST MATERIAL ADVANCING VIBRATORY SCREEN CARRIED BY THE FRAME MEANS AND HAVING A RECEIVING PORTION BENEATH THE OUTLET OF SAID FIRST CRUSHER AND A DISCHARGE END PORTION ARRANGED TO FEED CARRYOVER MATERIAL VIBRATORILY ADVANCED THEREALONG INTO THE RECEIVING PORTION OF THE ELEVATOR; (F) A SECOND CRUSHER MOUNTED ON THE FRAME MEANS ADJACENT TO THE ELEVATOR AND HAVING AN INLET IN ITS TOP AND AN OUTLET AT ITS BOTTOM; (G) MEANS FOR CONDUCTING MATERIAL FROM THE DISCHARGE PORTION OF THE ELEVATOR INTO THE INLET OF THE SECOND CRUSHER; (H) FIRST CONVEYOR MEANS HAVING A RECEIVING PORTION BENEATH THE OUTLET OF THE SECOND CRUSHER AND A DISCHARGING PORTION SPACED FORWARDLY FROM ITS RECEIVING PORTION; (I) A SECON VIBRATORY SCREEN HAVING A RECEIVING PORTION BENEATH THE DISCHARGING PORTION OF THE FIRST CONVEYOR MEANS AND HAVING A DISCHARGE END PORTION ARRANGED TO FEED CONVEYOR MATERIALS VIBRATORILY ADVANCED THEREALONG INTO THE RECEIVING PORTION OF THE ELEVATOR; (J) AND SECOND CONVEYOR MEANS EXTENDING FORWARDLY BENEATH SAID FIRST VIBRATORY SCREEN, THE ELEVATOR AND THE SECOND VIBRATORY SCREEN, FOR RECEIVING FINISHED MATERIALS FROM SAID VIBRATORY SCREENS, AND HAVING A DISCHARGING END PORTION LOCATED AT THE FRONT END OF THE FRAME MEANS.