| 摘要 |
A lightweight, portable scale, including a balance beam pivotally positioned on a fulcrum, contained in a tear-drop shaped carrying case. The portable scale has a load pan on one end of the balance beam and a graduated scale, configured to accommodate sliding weight members, extending toward the opposite end of the balance beam. The fulcrum is positioned between the load pan and the graduated scale. To establish equilibrium, the balance beam includes a stationary counter-weight attached on the load pan side of the fulcrum, which balances the empty load pan against the sliding weight members located at a zero position on the graduated scale. The carrying case has a top portion hingedly attached to a bottom portion, which functions as the base of the portable scale and has sidewalls shorter than the fulcrum, preventing interference by the side walls during the weighing process.
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