her direction, to take in or give out chain cable, as setforth. Third, I claim the adjustable bearing block, o, in combination withthe chain heaver, m, to relieve the vertical shaft of said heaver fromstrain and friction that would otherwise result from the weight of thechain, or the strain on the… … The new Patent Laws enacted by Congress on the 2d if March, 1861, are now in full force, and prove to be of great benefito all parties who are concerned in new inventions.The duration of patents granted under the new act Is prolonged tosbvbhtbbh years, and the government fee required on filing an…
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