Inventing for Boys

by A. Frederick Collins

• Radiation, [74], [79]
• Reading helps, [6]
• References, Patent Office citing, [117]
• Register of copyrights, [221]
• Reis, Johanne Phillip, telephone inventor, [205]
• Resistance bridge, [83]
• Rights, selling invention, [135]
• Ro, a universal language, [50]
• Roosevelt, [115]
• Royalties on inventions, [135]
• Rubber, discovery of, [4]
• Rules of practice, [120], [135], [218]

• Saving the watchword, [194]
• Scale drawings, [19], [21]
• Screw, [63]
• Theory of the, [68]
• Seal, corporate, [142]
• Seal Press, [142]
• Search, a desk patent office, [48]
• Free patent, [48], [113]
• Preliminary Patent Office, [49]
• Special Patent Office, [49]
• Selden, George B., daddy of the automobile, [209]
• Selling direct to the consumer, [172]
• Selling goods, basic principles of, [166]
• Selling through sales agents, [171]
• Selling the stock issue of a company, [147]
• Selling through the trade, [174]
• Sewing machine, invention of the, [203]
• Sewing machine needle, [56]
• Shaper, [155]
• Shop force, organizing a, [160]
• Shop foreman, hiring a, [160]
• Shop rights, selling, [135]
• Shop, starting your own, [148]
• Shrinkage of castings, [111]
• Siemens, dynamo inventor, [204]
• Snap-shot camera, invention of the, [208]
• Solders, hard, [241]
• Solenoid, [13], [79]
• Spark-coil, [76]
• Specifications, patent, [53]
• Starr, J. W., incandescent lamp inventor, [210]
• Standardizing your product, [159]
• Static electricity, [74-75]
• Specification, amending the, [118]
• Patent, [49], [117]
• State of the art, [45]
• Having a patent attorney look it up, [47]
• How to learn the, [46]
• How to look it up, [47], [51]
• Use of the, [46]
• What it means, [45]
• Steam boat, invention of the, [202]
• Steam engine, drawing of a, [22]
• Invention of the, [202]
• Steam turbine, invention of the, [208]
• Steel, high speed, [244]
• Steel process, invention of the, [204]
• Stephenson, locomotive inventor, [202]
• Stock certificate, [141]
• Stock certificate book, [141]
• Stock company, fees for incorporating, [140]
• How it is operated, [142]
• How to organize a, [139]
• Stock ledger, [142]
• Stock full paid, [143]
• Stock room, [161]
• Stock of a company, selling the, [144]
• Stock transfer book, [11]
• Stock, treasury, [143]
• Stock company, what it is, [138]
• Storage battery, invention of the, [208]
• Supreme Court, U. S., [112]
• Symbols, how to make electrical, [36]
• Synthetic gems, [85]

• Taps and dies, sizes of, [235]
• Telautograph, [13], [17]
• Telegraph, invention of the, [203]
• Telegraph sounder, [13]
• Telephone, Bell, [56]
• Invention of the, [205]
• Telephone transmitter, [76]
• Territorial rights, [135]
• Tesla, dynamo inventor, [46]
• Thermometer scales, four chief, [251]
• Things are money, [201]
• Thompson, dynamo inventor, [46]
• Thoughts are things, [201]
• Thurber, Charles, typewriter inventor, [207]
• Time stamp, Thompson, [161]
• Tools, useful jewelers and machinists, [101]
• Tour of the inventive world, [200]
• Trade marks, [220]
• Transfer tax law, [141]
• Treasury stocks, [143]
• Trolley car and line invention of the, [211]
• Twining, ice machine inventor, [204]
• Twist drills, sizes of, [235]
• Typewriter, invention of the, [207]

• Ultra violet waves, [75], [79]
• United States patent, [127]
• United States Patent Office, [47], [135]
• United States Supreme Court, [112]
• Unit of work, [60]
• Universal milling machine, [156]

• Van Depoele, C. J., trolley line inventor, [211]
• Velocity, [60]
• Vernier, [103]
• Vernier, how to read a, [103]
• Violet ray machine, [162]
• Vibrator, [76]
• Voltmeter, [83]

• Watt, James, steam engine inventor, [202]
• Wedge, [63]
• What not to invent, [197]
• Wheatstone, Charles, telephone inventor, [206]
• Wheel and axle, [63]
• Weston, dynamo inventor, [46]
• Westinghouse, air brake inventor, [131], [205]
• Wilde, dynamo inventor, [204]
• Winding machine, [83]
• Wire
• Gage, how to use a, [106]
• Number, length, weight and resistance of pure copper, [244], [245]
• Prices of insulated magnet, [247]
• Number of turns that can be wound in a given space, [246]
• Wiring diagrams, how to make, [39]
• Wireless telegraph, invention of the, [214]
• Wireless telephone, [12]
• Wireless telephone, invention of the, [215]
• Wireless waves, [75]
• Words and terms used in this book, [253]
• Work, [59]
• Energy and power, [60]
• Farming it out, [147]
• Unit of, [60]
• Working drawings, [19]
• Wright brothers, aeroplane inventors, [215]

FOOTNOTES

[1] Ro is a universal language invented by the Rev. Edward P. Foster of Marietta, Ohio. According to the New York Times the frogs have talked ro from the first and any child ought to be able to learn it in less than twice the lifetime of Old Parr.

[2] For a further explanation of these very interesting phenomena, read Modern Views of Electricity, by Sir Oliver Lodge.

[3] The pseudotriakis microdon is one of the rarest species of sharks. It is a small toothed nurse shark and is known from only two specimens, one of which turned up on the coast of Portugal and the other on Long Island.