MEASURING VESSEL

摘要

A measuring vessel (1) for determining the accuracy with which a liquid fuel dispenser dispenses liquid fuel comprises a neck (4) of transparent material. A primary arcuate panel (16) having three primary graduated scales (14) corresponding to three different kinds of liquid fuels is secured to the neck (4). Primary graduations (17) of the respective primary graduated scales (14) indicate the level to which the meniscus of actual volumes of the respective liquid fuel dispensed at the temperatures corresponding to the primary graduations (17) should rise so that the energy content of the actual volumes of the respective liquid fuels dispensed is equal to the energy content of a predefined calibration volume of the corresponding liquid fuel at a predefined reference temperature typically of 15° C. A secondary arcuate panel (20) having a secondary graduated scale (22) thereon is slideable relative to the primary graduated scales (17) so that a reference graduation (23) of the secondary graduated scale (22) can be aligned with an appropriate one of the primary graduations (17) of an appropriate one of the primary graduated scales (14), in order that the amount by which the actual volume of liquid fuel dispensed exceeds or falls below the actual volume which should have been dispensed.

主权项

1. A measuring vessel comprising a hollow interior region for receiving a volume of liquid fuel, at least one primary graduated scale provided on the measuring vessel having a plurality of primary graduations indicative of predefined volumes of the measuring vessel which would be occupied by the liquid fuel of a predefined energy content at respective predefined temperature values of the liquid fuel, a secondary graduated scale having a reference graduation selectively alignable with each one of the primary graduations of the primary graduated scale, and a plurality of secondary graduations located to at least one side of the reference graduation, the secondary graduations being indicative of the respective amounts by which the liquid fuel in the measuring vessel has one of
(a) exceeded the volume of which the primary graduation, with which the reference graduation is aligned, is indicative, and (b) failed to reach the volume of which the primary graduation, with which the reference graduation is aligned, is indicative, the secondary graduated scale being slideable longitudinally along the primary graduated scale for aligning the reference graduation with a selected one of the primary graduations corresponding to the temperature of the liquid fuel.