American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 177
alance arbor a littlebelow the mechanism which lies between itand the plane of the balance ; the exteriorpart of this compound bar is brass, and theinterior steel; a & is a piece of steel, movableabout the arbor, and having a longitudinalslot each way, from the centre to nearly eachextremity, a… … them that exactly fit the slot, and conse-quently they partake of the motion of thecompound spiral; the ends c of the bracketpieces are attached to the balance rim at thepoints e, by the straight slender spring e c.To the ends d of the brackets are attachedthe long pins d, f, which pass through…
Clocks and watches
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