of Mystic River, New London Co., Conn., has taken measures to se cure a patent for a new and improved press for compres6ing cotton, &c. This press is in tended to supply the desideratum of a quick motion for the follower when the cotton is first compressed. As is evident the cotton yields at first, with comparative facility, to the compressing power, but on the bale beco ming more compact, it is n�cessary to employ a greater intensity of power when a less amount of speed is required. The

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... r attains his object by employing spiral cams, or, in other words, conical drums with a spi ral groove cast or cut around the periphery. Two of these cams are employed, one on each side of the press, and chains winding round them raise the fol lower, which slides longitu dinally within the box contain;ng the COttOIl. As the chains are attached to the larger part of the cam or conical drum, it is evident that on beginning to work the press with a regular mo' tion, the chains will have to wind around a larger circumference at first than alterwards, and thus their speed, and consequently that of the foll ower, will gradually diminish, while, in accordance with the well-known law of mechanics, the intensity of the power will in crease in the same ratio. The motion is trans mitted through the agellcy of geared wheels, and the box for the cotton has a cover capa ble ?f being remove�leasure. J Pasteboard Cutter.