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 90
Fig. 23; —Sweets Measuring-machine. observation for distances in even inches, and the micrometer,screw is used only to measure the fractional or decimal partsof an inch. The instrument is furnished with an external … scale, graduated on the upper edge to read in binary fractionsof an inch, and on the lower edge to read in decimals of aninch; this scale can be set at a slight angle with the axis tocorrect for any error in the pitch of the micrometer-screw.
Building materials · Machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.