AUTOMATIC GRADER OPENS WAY TO FAST SIDEWALK CONSTRUCTION

A NEW TRACK-MOUNTED FINE-GRADING MACHINE ADVANCES 5 FEET PER MINUTE AS IT LEVELS THE EARTH TO FINAL ELEVATION FOR A CONTRACTOR INSTALLING SIDEWALKS IN MINNESOTA. GUIDED BY A SENSOR, THE MACHINE AUTOMATICALLY ESTABLISHES A PRECISE GRADE, CUTTING THE EARTH TO A SELECTED DEPTH AND FEEDING IT INTO A CONVEYOR FOR DISCHARGE AT THE REAR. THE FINE-GRADER INCREASES PRODUCTION 15 TO 30% AND ELIMINATES OTHER RIGS, THREE LABORERS, AND VIRUTALLY ALL HAND WORK.

• Supplemental Notes:
  • Vol 51, No 12, PP 52-53, 3 PHOT
• Publication Date: 1969-12

Media Info

• Serial:
  • Construction Methods and Equipment
  • Publisher: McGraw-Hill, Incorporated

Subject/Index Terms

• TRT Terms: Aggregate gradation; Automation; Construction; Construction equipment; Economics; Graders; Sensors; Sidewalks
• Old TRIS Terms: Fine grading
• Subject Areas: Construction; Economics; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00219369
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 16 1970 12:00AM