CONTENTS

CHAPTER PAGE
[Preface]vii
I.[GETTING AN IDEA]1
[How to Get an Idea]
[The First Raw Idea].—[Accidental Discoveries].—[Thoughtout Ideas].—[Reading up Your Subject].—[Workingout Ideas by Experiment].—[Ideas forInventions in General].—[Ideas for MechanicalInventions.][Ideas for Electrical Inventions].—[Ideasfor Electro-Mechanical Inventions].—[Ideasfor Chemical Inventions].—[Ideas for Electro-ChemicalInventions].
[Protecting Your Raw Ideas]
II.[WORKING IT OUT ON PAPER]19
[Tools for Making Simple Drawings]
[How to Make Simple Working Drawings]
[A Simple Way to Draw in Perspective]
[How to Make Isometric Paper].—[Drawing Toolsyou Need].
[How to Draw Isometric Ellipses]
[An Easy, Rough Way] and .
[How to Shade Drawings]
[How to Make Electrical Symbols]
[How to Read Electrical Diagrams]
[Some Aids to Drawing]
[Making Cardboard Models]
III.[THE STATE OF THE ART]45
[What is Meant by the State of the Art]
[Use of the State of the Art]
[How to Learn the State of the Art]
[Having a Patent Attorney Look It Up]
[How to Look It Up Yourself]
[What to Do When You Find]
(a) [There are no other improvements like yours].—(b)[That there is a resemblance to yours].—(c)[When others are exactly like yours].
IV.[HOW TO EXPERIMENT]58
[How to Experiment with Machines]
[Work, Energy and Power].—[Work Against Friction].—[Formsof Energy].
[Machines and the Principles of Machinery]
[The Uses of Machines]
[The Six Mechanical Powers]
[Compound Machines].—[Books]
[How to Experiment with Electricity]
[Forms of Electricity]
[Static Electricity].—[Current Electricity].—[Magnetism].—[Radiation].
[Your Electrical Equipment].—[Books]
[How to Experiment with Chemistry]
[Your Chemical Equipment].—[Books]
[How to Experiment with Electro-Chemistry]
V.[MAKING A MODEL]91
[Kinds of Models]
[Rough Models].—[Scale Models].—[WorkingModels].
[Ways to Make a Model]
[Making a Model Yourself].—[Having a ModelMaker Make It].
[The Tools You Need]
[The Vernier].—[The Micrometer].—[A and S WireGage].—[Drill Press].—[Screw Cutting Lathe].
[Buying Materials]
[About Making Patterns]
[Casting in Brass and Iron]
VI.[HOW TO PATENT YOUR INVENTION]112
[What a Patent Is]
[Choosing a Patent Attorney]
[Applying for a Patent Yourself]
[Applying for a Patent Through a Patent Attorney]
[What You May Patent]
[Looking Ahead]
[What a Patent Consists of]
[The Petition].—[The Drawings].—[The Specifications].—[TheClaims].—[The Oath].
[While Your Patent is Pending]
[Interference]
[When Your Patent is Granted]
[About Paper Patents]
VII.[MAKING YOUR INVENTION PAY]131
[How to Raise the Initial Funds]
[About an Interest in a Patent]
[Royalties, Shop Rights, etc.]
[Forming a Partnership]
[Where the Promoter Comes in]
[What a Stock Company Is]
[How a Stock Company Is Organized]
[The Fees of the State].—[Outfit Needed].
[How a Stock Company Is Operated]
[About Retaining a Lawyer]
VIII.[SOME HINTS OF MANUFACTURING]146
[Problems of Manufacturing]
[Farming out the Work].—[Starting Your OwnShop].—[Buying Machine Tools].—[Buying theStock].—[Organizing a Shop Force].—[The StockRoom].—[The Finished Product].—[OverheadCharges].
[Where Your Profits Come in]
IX.[PUTTING IT ON THE MARKET]166
[How Best to Do It]
[Agents Wanted].—[The Mail Order Business].—[ASeries of Follow-Up Letters].—[Selling ThroughSales Agents].—[Selling Direct from Factory toConsumer].—[Selling Through the Trade].
[Getting Publicity]
[Advertising]
X.[THINGS FOR YOU TO INVENT]180
[Some Little Things Needed]
[For the Person].—[For the House].—[For theFarm].—[For the Office].—[For Fun].
[Some Big Inventions Needed]
[Safety First].—[Automobiles].—[Aviation].—[Chemistry].—[Electricity].—[Electro-Chemistry].—[Building].—[Mining and Metallurgy].—[Printing].—[Moving Pictures].
[What Not To Invent]
XI.[WHAT SOME INVENTIONS HAVE PAID]200
[A Tour of the Inventive World]
[Little Inventions]
[Simple Inventions]
[Real Inventions]
[Great Inventions]
[The Steam Engine, Locomotive, and Steamboat].—[TheTelegraph].—[The Perfecting Press].—[TheSewing Machine].—[The Ice Machine].—[TheSteel Process].—[The Gas Engine].—[The Dynamoand Motor].—[The Air Brake].—[The Telephone].—[TheTypewriter].—[The Phonograph].—[The StorageBattery].—[The Snap-shot Camera].—[TheSteam Turbine].—[The Automobile].—[The IncandescentLight].—[The Trolley Car].—[The ElectricLocomotive].—[The Linotype].—[Moving Pictures].—[TheWireless Telegraph].—[The WirelessTelephone].—[The Aeroplane].
XII.[PROFITABLE INFORMATION]216
[Design Patents]
[Assignments]
[Caveats]
[Patent Office Fees]
[Trade Marks]
[Copyrights]
[Government Fees for Patents and Least Chargesof Patent Attorneys]
[Foreign Patents]
[APPENDICES]229-252
[SOME WORDS and Terms Used in This Book]253-260
[INDEX]261-270