Scientific American Volume 10 Number 11 (March 1864) . se of meeting with any ob-struction, while the other is continued at work. Thereare also two staples and hooks, E and F, in both thecultivator and the frame on the wheels ; by thesestaples the cultivators are raised if desired, so thatthe machine may be transported from one place toanother without any trouble. This cultivator will be found useful In all places,and it is a desirable addition to the already longlist of machines for farmers use. It was patentedthrough the Scientific American Patent Agency onDec. 1st, 1863, by Samuel H. Mitche
Scientific American Volume 10 Number 11 (March 1864) . se of meeting with any ob-struction, while the other is continued at work. Thereare also two staples and hooks, E and F, in both thecultivator and the frame on the wheels ; by thesestaples the cultivators are raised if desired, so thatthe machine may be transported from one place toanother without any trouble. This cultivator will be found useful In all places,and it is a desirable addition to the already longlist of machines for farmers use. It was patentedthrough the Scientific American Patent Agency onDec. 1st, 1863, by Samuel H. Mitchell, of El Paso,111.; for further information address him as above. A HINT WOBTH EEMEMBEBING. No better illustration of the value of simple inventionscan be found than one afforded by an instance whichlately came to our notice. A gentleman who was alarge manufacturer of furniture recently called at thisoffice with a small wooden block in his hand, whichwas a certain portion of a bedstead. This block, ormodel, he desired to patent. We expressed our in-. keenest of the Gothamites will be invited to exposethe humbug, if such they can prove it. It consistsof a wheel seven inches in diameter, to which areattached twelve arms at right angles, and to eacharm a ball weighing half an ounce. These arms areall connected by twenty-four cords, two to each arm,and are so arranged that the falling of one ball affectsthe other immediately behind it, and so on apparentlytill the machine is worn out.—Exchange. [We have been lookingfor the new perpetual-motion man for severaldays; but up to the timeof going to press he hadnot arrived at our self-operating machineis something we have neverseen, and we are very de-sirous to have our curios-ity gratified. Bring onyour perpetual motion I—Eds. Improved Knife-cleaner. This convenient little utensil will be found a greatimprovement over the ordinary methodof cleaning knives, which is, we be-lieve, to use a rag, a board, and, aswe are told by
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