Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 83
r placed, but capable ofbeing easily turned round upon thetube, or slightly elevated or de-pressed, for the purpose of adjust-ing it to the index V, to show thetime of the day, and also to adjustthe registering lines with the prick-er G. F, the index showing thetime, is a fine wire, placed… … BIRAMS TELL-TALE. 81 impression upon the registering paper, ■when a finger is pressed upon the stud H; I shows a slight spring,intended to return the pricker and stud to their position when the finger is removed ; L is a piece ofglass in front of the timepiece, the horizontal section of which is…
Mechanical engineering · Mechanics · Engineering
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