G - Physics – 09 – B
Patent
G - Physics
09
B
235/117
G09B 19/22 (2006.01) B42D 15/00 (2006.01) G01D 13/00 (2006.01) G06G 1/00 (2006.01)
Patent
CA 1328436
ABSTRACT A method and apparatus for determining the mileage of a vehicle using a card with a recording surface and three aligned horizontal rows of boxes. The first row is in the middle, with the second row above it and the third row below it. An initial odometer reading of a vehicle is recorded in the first row. At the same time, a base fuel gauge reading is taken and is recorded by positioning a pivotable pointer mounted on the card above the first row. The vehicle is driven to consume fuel, and ten gallons of fuel are added to bring the fuel gauge reading above the base reading. When the fuel gauge again reaches the base reading, a second odometer reading is taken and recorded in the second row of boxes. The reading in the first row is subtracted from the reading in the second row, and the result is written in the third row of boxes. A decimal point is positioned between the two rightmost boxes of the third row to automatically convert the subtraction results into miles per gallon.
614597
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