Details are given of an invention to transport loads on difficult terrain by means of inflatable elements arranged laterally. The elements are tubes of flexible material arranged to collapse when deflated so that their lower walls are raised clear of the ground when not in use. The apparatus creates a series of waves, caused by successive inflation and deflation of the tubes, and these waves progress across the whole undersurface of the device and result in a progressive movement relative to the ground of an attached sheet or board composed of a light alloy or reinforced plastic material. /TRRL/

  • Corporate Authors:

    Patent Office, England

    25 Southampton Buildings
    London,   England 
  • Authors:
    • Lewis, O T
    • Lewis, J G
  • Publication Date: 1973


  • English

Media Info

  • Features: Figures;
  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00083431
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: No. 1302535 Patent
  • Files: ITRD, TRIS
  • Created Date: May 29 1975 12:00AM