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 165
Fig. 78. 134 EXPERIMENTAL ENGINEERING. [§86. drum. It is at once evident that any extension of the speci-men SS will draw in the free end of the cord at twice therate of the extension; moreover, any slight swinging or rock-ing of the extensometer head will produce compensatingeffects on the length… … Fig. 80. Fig. 8i. of the specimen. As this work may be done against a fixedpull, there may be a uniform tension on the cord so that themotion of the drum would be uniform and proportional to thestretch. A pencil is moved along the axis of the drum pro-portional to the motion of the poise. An…
Building materials · Machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.