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

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Filing Info

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