ROOT ELEVATOR BEIN FIG. 2B

ROOT ELEVATOR WALTER F. BARRY FIG. 320

ROOT ELEVATOR WALTER F. BARRY FIG. 321

ROOT ELEVATOR BEIN FIG. 3B

ROOT ELEVATOR BEIN FIG. 4B

ROOT ELEVATOR FLOHR FIG. 2F

ROOT ELEVATOR FLOHR FIG. 3F

ROOT ELEVATOR HEIDBRINK FIG. 1

ROOT ELEVATOR HEIDBRINK FIG. 2

ROOT ELEVATOR HEIDBRINK FIG. 3