Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 699
r of ordinary grindstone rollers, which form a bearingfor the balance wheel shaft. This shaft has formed in ittwo cranks, and it carries an ordinary balance wheel,to the side of which is secured by means of hook bolts agrooved wooden rim for receiving the driving belt. The cranks are connected, by… … The size of the different diameters of the drive wheelmay be found by turning the larger one first and the smallerones afterward, using the belt to determine when the proper MECHANICAL OPERATIONS. 677 size is reached. The wooden rim may be turned off in posi-tion by using a pointed tool. The lathe…
Physics · Lantern projection · Electric apparatus and appliances
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