Experimental engineering and manual for testing. For engineers and for students in engineering laboratories (1906)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & Sons; [etc., etc.] · leaf 89
s, which form a vernier with refer* 6o EXPERIMENTAL ENGINEERING. ■ [§ 42. ence to the scale on the thimble, the least reading of which isone tenth that on the thimble. If the screw be cut 40 threadsper inch, one revolution will advance the point 0.025 inch ; andif the thimble carry 25 subdivisions,… … Fig. 22.—Micrometer Caliper. the barrel and thimble scales in Fig. 16 the zero of the verniercoincides in the upper sketch with No. 7 on the thimble; butin the lower figure the zero of the vernier has passed beyond 7,and by looking on the vernier we see that the 3d mark coincideswith one on the…
Building materials · Machinery
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