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micrometer screw
noun
- a screw with a fine thread of definite pitch, such as that of a micrometer gauge
Example Sentences
And those who watched it know that Burnley played Fulham in a fixture that made a micrometer screw gauge manual look like Jilly Cooper’s Riders.
Plano-convex, convex towards c ” 1 The lens b is divided, and one of the segments is moved by a micrometer screw.
To the sliding jaw e is attached the micrometer screw c, which has a pitch of 40 threads per inch; the drum a upon the screw has its circumference divided into 250 equidistant divisions, hence if the drum be moved through a space equal to one of these divisions the sliding jaw e will be moved the 1⁄250th part of 1⁄40th of an inch, or in other words the 1⁄10,000th of an inch.
In many cases the orifice is a rectangular slot in a brass plate and is adjusted by means of a brass slide operated by a micrometer screw.
The telescope has two horizontal wires, one fixed and the other moveable by a micrometer screw, so that the difference between the height of the column of mercury and the nearest division on the scale of the standard, and also of all the other barometers placed by the side of it for comparison, can be measured either with the vertical scale and vernier or the micrometer wire.
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