23 20 J FIG. 6.—1 TO 11, LOWliR PIVOT AND LOWER PIVOT SOCKET PARTS; 12, V. F. LINK FRAME; 13, V. F. ROD SOCKET; 14, V, F. LINK; 17, 18, COUNTERWEIGHT ARMS; 19, 20, COUNTERWEIGHTS; 21, SENSI- TIVITY WEIGHT SPINDLES; 22, 23, BRAKE PARTS. … FIG. 7.—1 TO 16, MOMENT DEVICE PARTS; 17 TO 21, MICROSCOPE PARTS.
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