Portable roadway
OwnerM. L. Greeninventor
Life of this patent
Estimating the term…
Abstract
A plurality of sections of portable roadway are removably interconnected for use during periods of adverse weather conditions during which soil conditions are such that it is impossible to build a permanent road, or when the economics are such that a temporary road is advantageous. Each section consists of a hardwood frame which is connected to and supports a plywood surface. At the front and rear of each section, a transverse stiffening bar extends through and laterally to the side of the section. Connecting members are attached between the free ends of these stiffening bars. In the center of each section, a lifting bar is disposed to aid in removal and placement of the sections in an expeditious manner.
Claims2
A portable roadway for facilitating vehicular traffic comprising a plurality of sections, each section including:
- a framework having longitudinal, parallel side members and a pair of transverse forward and rear members connected to said side members;
- a top panel connected to and overlying said framework in flush peripheral relation;
- a forward stiffening bar extending transversely between said side members and disposed adjacent and parallel to said forward frame member;
- a rear stiffening bar extending transversely between said side members and disposed parallel and adjacent to said rear frame member, said forward and rear stiffening bars having free ends extending laterally of said framework;
- a metal strap pivotally connecting the free ends of the forward and rear stiffening bars of adjacent sections, said laterally extending free ends of the stiffening bars being threaded and having nuts attached thereto disposed against said frame members to apply inward forces to the side frame members, each metal strap including an aperture adjacent one end for pivotal mounting on the free end of one stiffening bar and a downwardly opening notch adjacent the other end for detachable engagement with the free end of a stiffening bar on an adjacent section;
- and
- a lifting bar located intermediate said forward and rear stiffening bars and extending transversely between said side members.
Dependencies are inferred from the claim text.