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Load indicating assembly

  • US 3,895,681 A
  • Filed: 11/04/1973
  • Issued: 07/22/1975
  • Est. Priority Date: 03/16/1972
  • Status: Expired due to Term
First Claim
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1. A load indicating assembly usable for weighing vehicles and the like and comprising, a support base supporting a resiliently deformable member, a load platen arranged to engage said resiliently deformable member in such manner that a load placed on said load platen will cause deformation of said resiliently deformable member, and indicating means sensitive to such deformation and calibrated to indicate the weight of said load, said resiliently deformable member being a sealed fluid filled resilient tube, said indicating means comprising a pressure gauge connected operatively to said resilient tube to indicate the pressure of the fluid therein, said load platen comprising a substantially flat, horizontally inclined rectangular plate, the latter being supported on said sealed fluid filled resilient tube, said rectangular load platen being elongate and of such length that it is adapted to support thereon a set of dual wheels of a truck axle assembly, with the axis of said wheEls substantially parallel to the longitudinal edges of said load platen to enable said load indicating assembly to be used to indicate the weight of said dual wheels, said resilient tube extending along the underside of said load platen and beyond the ends thereof with its axis disposed centrally beneath the longitudinal center line of said load platen, said platen being tiltable about said tube to form, in operation, an approach ramp and an exit ramp to and from the central portion of said platen, said longitudinal edges of said elongate rectangular platen being turned downwards so that in operation, as a vehicle wheel is driven onto said load platen the latter tilts to form an approach ramp and the down-turned edge contacts the surface upon which the assembly is supported in such manner that the contact force between said wheel and said platen, due to the forward motion of said vehicle wheel is transmitted directly to said supporting surface through said downwardly-turned edge, by contact therebetween, and as said wheels move across the load platen, the latter rocks about said elongate tube until the said downturned edge is moved clear of the support base so that the load indicating assembly indicates only the true static weight of said vehicle wheel, said support base being a flat, elongate, rectangular metal plate and said fluid filled resilient tube extending centrally therealong, said assembly being of such size as to be portable, said fluid filled tube being clamped to said base adjacent the ends of said load platen, the latter being arranged to be maintained in its operative position supported on said fluid filled tube by a pair of chains connected between the ends of said platen and said base and a pair of springs opposing said chains to maintain tension therein.

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