Brearley, Harry Chase, 1870-1940, Ingersoll, Robt. H., & Bro · New York : Pub. by Doubleday, Page & Co. for Robert H. Ingersol & Bros. · leaf 337
aff, of course, turns just as the balance turns and with it thejewel-pin. And the lever is just long enough and is so placed that everytime the balance turns, the jewel-pin fits into the slot between theprongs of the lever-fork carrying it first one way, and then, as thebalance comes back, the… … zA ^Modern Watch ^Movement 1 Ftrst or Attain Wheel towhichmainspringis attached. 6 Pallet, with Toilet Jewels. 2 Second or Renter Wheel, y £cver. 3 Third Wheel. 8 Balance. 4 Fourth IVheel. 9 Hair Spring. 5 Ctcafe Wheel. 1 o %aller tooth before the other pallet-jewel is thrust in to stop it. It is…
Time measurements · Clocks and watches
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