. The Scientific American reference book; a compendium of useful information for inventors and mechanics, containing the complete patent laws of the United States ... forms for patents, caveats, assignments, licenses, and shop rights ... etc., etc . t infringement. 100 WILL IT pay: All good improvements are worth patenting, even if theiruse infringes a prior patent. Many an infringing device isworth more than the patent with which it conflicts. Patent-ees of conflicting inventions can usually make satisfactoryarrangements with the owners of the prior patents; it is ob-viously to the interest o
. The Scientific American reference book; a compendium of useful information for inventors and mechanics, containing the complete patent laws of the United States ... forms for patents, caveats, assignments, licenses, and shop rights ... etc., etc . t infringement. 100 WILL IT pay: All good improvements are worth patenting, even if theiruse infringes a prior patent. Many an infringing device isworth more than the patent with which it conflicts. Patent-ees of conflicting inventions can usually make satisfactoryarrangements with the owners of the prior patents; it is ob-viously to the interest of prior patentees to have their patentsj used as extensively as possible. The princely revenue ofHowe, the inventor of the sewing machine, was about|500,000 annually, derived from infringing patentees,paying him a small royalty on each macliine. The netprofits divided among the owners of one of these in-fringing patents—the celebrated Wheeler and Wilson—is reported to be more than $1,000,000 a year. Wemight give hundreds of analogous examples. SUBSTITUTE FOR BELTS AND GEARS. The object of this device is to transmit motion from oneshaft to anotlier, without the use of belt or gear Avhecls, bothof which are in some instances Continuous rotary motion of the pulley shaft, is imnartcdto the secondary shaft through the connecting rods STEAM PRESSURE AND TEMPERATURE. Pressure Correspond^ Pressure Correspondg 11rcssure Correspondg in lbs. Temperature. in lbs. Temperature. in lbs. Temperature, Fahrenheit. Fahrenheit. 10 65 . 140 15 70 150 20 75 160 25 80 170 30 85 180 35 90 190 40 95 200 45 100 210 50 110 220 55 120 230 60 130 240 THE VALUE OP BRAINS. 101 THE VALUE OF BRAINS. Working as an ordinary hand in a Philadelphia ship-yard,until Avithin
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