DISTRICT 25 DEVELOPS POST DRIVER

A MACHINE BASED ON DROP HAMMER PRINCIPLES HAS BEEN DEVISED TO DRIVE IN HIGHWAY DELINEATOR POSTS. BASICALLY IT CONSISTS OF A 40-LB HAMMER RAISED 20 IN. AND DROPPED ONTO THE DRIVING CAP OF THE POST. THE HAMMER IS RAISED AND DROPPED BY A SNATCH BLOCK ACTIVATED BY A CABLE SECURED TO A 20-IN FLYWHEEL. THE FLYWHEEL IS DRIVEN BY A SMALL PETROL ENGINE. IT TAKES THREE MINUTES AND ABOUT 150 STROKES TO DRIVE AN 8-FT POST TO A DEPTH OF 3 1/2FT. TEST DRIVING IN BASE MATERIAL HAS PROVED SATISFACTORY. /RRL/

• Supplemental Notes:
  • Vol12, No4, PP 12-13, 4PHOT
• Authors:
  • TURNER, J
• Publication Date: 0

Media Info

• Serial:
  • Texas Highways, Texas Highway Dept

Subject/Index Terms

• TRT Terms: Development; Flywheels; Gasoline engines; Hammers; Highway delineators; Highway design; Pile driving; Pile hammers; Posts
• Old TRIS Terms: Highway delineation
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00219243
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Mar 6 1970 12:00AM