Portable, lightweight measuring instrument
First Claim
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1. A portable, lightweight measuring instrument comprising:
- a. a main beam;
b. a slider mounted to slide longitudinally of said main beam;
c. a rack extending longitudinally along said main beam;
d. a dial gauge attached to said slider, said dial gauge having a pointer driven by a first pinion meshing with said rack to indicate a portion of the displacement of said slider relative to said main beam, said dial gauge including dial means rotatable relative to the pointer for adjusting the dial gauge to zero; and
e. a counter separate from said dial gauge attached to said slider and driven by a second pinion meshing with said rack to indicate an additional portion of the displacement of the slider relative to the beam, so that the total displacement of the slider is indicated by the dial gauge and counter, said counter being attached to said slider for zero adjustment by means attaching the counter to the slider for longitudinal adjustment with respect to the slider.
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Abstract
A portable, lightweight measuring instrument comprising a main beam and a slider which are relatively displaced to carry out a measurement, a counter which indicates the relative displacement between said main beam and said slider by rack-and-pinion combination, and a dial gauge separate from said counter, both said counter and said dial gauge being mounted on said slider.
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Citations
10 Claims
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1. A portable, lightweight measuring instrument comprising:
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a. a main beam; b. a slider mounted to slide longitudinally of said main beam; c. a rack extending longitudinally along said main beam; d. a dial gauge attached to said slider, said dial gauge having a pointer driven by a first pinion meshing with said rack to indicate a portion of the displacement of said slider relative to said main beam, said dial gauge including dial means rotatable relative to the pointer for adjusting the dial gauge to zero; and e. a counter separate from said dial gauge attached to said slider and driven by a second pinion meshing with said rack to indicate an additional portion of the displacement of the slider relative to the beam, so that the total displacement of the slider is indicated by the dial gauge and counter, said counter being attached to said slider for zero adjustment by means attaching the counter to the slider for longitudinal adjustment with respect to the slider. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification