Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology
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Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology

By Anonymous
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Table of Contents
  • The Project Gutenberg eBook, Watch and Clock Escapements, by Anonymous
    • E-text prepared by Robert Cicconetti, Janet Blenkinship, and the Project Gutenberg Online Distributed Proofreading Team (http://www.pgdp.net/). Book provided by the New York University Library.
  • WATCH AND CLOCK
  • ESCAPEMENTS
    • NEARLY TWO HUNDRED ORIGINAL ILLUSTRATIONS
    • PREFACE
    • CONTENTS
    • CHAPTER I.
      • THE DETACHED LEVER ESCAPEMENT.
        • MAKING A PAIR OF DIVIDERS.
        • DELINEATING AN ESCAPE WHEEL.
        • PALLET-AND-FORK ACTION.
        • ESTABLISHING THE CENTER OF PALLET STAFF.
        • LAYING OUT ESCAPE-WHEEL TEETH.
        • HOW MOTION IS OBTAINED.
        • PALLET-AND-FORK ACTION.
        • METHODS OF MAKING GOOD DRAWING INSTRUMENTS.
        • SPRING AND ADJUSTING SCREW FOR DRAWING INSTRUMENTS.
        • CONSIDERATION OF DETACHED LEVER ESCAPEMENT RESUMED.
        • THE NECESSITY FOR GOOD INSTRUMENTS.
        • DELINEATING THE EXIT PALLET.
        • DELINEATING CIRCULAR PALLETS.
        • THE AMOUNT OF LOCK.
        • ADVANTAGE OF MAKING LARGE DRAWINGS.
        • THE CLUB-TOOTH LEVER ESCAPEMENT.
        • RELATIONS OF THE SEVERAL PARTS.
        • LOCATING THE INNER ANGLE OF THE EXIT PALLET.
        • CLUB-TOOTH LEVER WITH EQUIDISTANT LOCKING FACES.
        • ANGULAR MOTION OF ESCAPE WHEEL DETERMINED.
        • A DEPARTURE FROM FORMER PRACTICES.
        • AN APT ILLUSTRATION.
        • LOCATING THE OUTER ANGLE OF THE IMPULSE PLANES.
        • MAKING AN ESCAPEMENT MODEL.
        • MAKING THE BRIDGES.
        • IMITATION RUBIES FOR CAPPING THE TOP PIVOTS.
        • PROFITABLE FOR EXPLAINING TO A CUSTOMER.
        • HOW LARGE SCREWS ARE MADE.
        • FANCY SCREWHEADS.
        • HOW TO DO ACID FROSTING.
        • HOW TO PREPARE THE SURFACE.
        • HOW TO ETCH THE SURFACE.
        • TO TEMPER AND POLISH STEEL.
        • HOW FLAT STEEL POLISHING IS DONE.
        • SMOOTHING AND POLISHING.
        • KNOWLEDGE THAT IS MOST ESSENTIAL.
        • WHAT A WORKMAN SHOULD KNOW TO REPAIR A WATCH.
        • EDUCATE THE EYE TO JUDGE OF ANGULAR AS WELL AS LINEAR EXTENT.
        • FORK AND ROLLER ACTION.
        • HOW TO FIND THE ROLLER DIAMETER FROM THE LENGTH OF THE FORK.
        • WHY THIRTY DEGREES OF ROLLER ACTION IS ABOUT RIGHT.
        • HOW TO SET A FORK AND ROLLER ACTION RIGHT.
        • HOW TO DELINEATE A FORK AND ROLLER.
        • TO DETERMINE THE SIZE OF A JEWEL PIN.
        • THE THEORY OF THE FORK ACTION.
        • HOW TO DELINEATE THE PRONGS OF A LEVER FORK.
        • THE PROPER LENGTH OF A LEVER.
        • HOW TO DELINEATE THE SAFETY ACTION.
        • RESTRICT THE FRICTIONAL SURFACES.
        • BE FEARLESS IN REPAIRS, IF SURE YOU ARE RIGHT.
        • STUDY OF AN ESCAPEMENT ERROR.
        • HOW TO ADJUST THE PALLETS TO MATCH THE FORK.
        • HOW TO SET A JEWEL PIN AS IT SHOULD BE.
        • ABOUT JEWEL-PIN SETTERS.
        • HOW TO MAKE AN ANGLE-MEASURING DEVICE.
        • HOW THE ANGULAR MOTION IS MEASURED.
        • TESTING LOCK AND DROP WITH OUR NEW DEVICE.
        • A FEW EXPERIMENTS WITH OUR ANGLE-MEASURING DEVICE.
        • HOW TO MEASURE THE ANGULAR MOTION OF AN ESCAPE WHEEL.
        • HOW A BALANCE CONTROLS THE TIMEKEEPING OF A WATCH.
        • HOW BAROMETRIC PRESSURE AFFECTS A WATCH.
        • PROPORTIONS OF THE DOUBLE-ROLLER ESCAPEMENT.
        • THEORETICAL ACTION OF DOUBLE ROLLER CONSIDERED.
        • HOW TO DESIGN A DOUBLE-ROLLER ESCAPEMENT.
        • HOW THE GUARD POINT IS MADE.
        • MORE ABOUT TANGENTIAL LOCKINGS.
        • CORRECT DRAWING REQUIRED.
        • NEUTRAL LOCKINGS.
        • PRACTICAL HINTS FOR LEVER ESCAPEMENTS.
        • THE PERFECTED LEVER ESCAPEMENT.
        • WHEN POWER IS LOST IN THE LEVER ESCAPEMENT.
        • ABOUT THE CLUB-TOOTH ESCAPEMENT.
        • HOW TO LOCATE THE PALLET ACTION.
        • "ACTION" DRAWINGS.
        • DRAWING AN ESCAPEMENT TO SHOW ANGULAR MOTION.
        • PRACTICAL PROBLEMS IN THE LEVER ESCAPEMENT.
        • TO DRAW A PALLET IN ANY POSITION.
        • HIGHER MATHEMATICS APPLIED TO THE LEVER ESCAPEMENT.
        • HOW THE BASIS FOR CLOSE MEASUREMENTS IS OBTAINED.
        • MAKE A LARGE ESCAPEMENT MODEL.
        • PRACTICAL LESSONS WITH FORK AND PALLET ACTION.
        • QUIZ PROBLEMS IN THE DETACHED LEVER ESCAPEMENT.
        • HOW TO MEASURE ESCAPEMENT ANGLES.
        • DETERMINATION OF "RIGHT" METHODS.
        • ESCAPEMENTS COMPARED.
        • HOW TO SET PALLET STONES.
        • HOW TO MAKE AN ESCAPEMENT MATCHING TOOL.
        • DETAILS OF FITTING UP ESCAPEMENT MATCHER.
        • ESCAPEMENT MATCHING DEVICE DESCRIBED.
        • HOW TO SET PALLET STONES.
    • CHAPTER II.
      • THE CYLINDER ESCAPEMENT.
        • ESSENTIAL PARTS OF THE CYLINDER ESCAPEMENT.
        • DRAWING THE CYLINDER ESCAPEMENT.
        • ADVANTAGES GAINED IN SHAPING.
        • THE OUTER DIAMETER OF THE CYLINDER.
        • DRAWING A CYLINDER.
        • THE CYLINDER PROPER CONSIDERED.
        • WHY THE ANGULAR EXTENT IS INCREASED.
        • MAKING A WORKING MODEL.
        • PROPER SHAPE OF CYLINDER LIPS.
        • DELINEATING AN ESCAPE-WHEEL TOOTH WHILE IN ACTION.
    • CHAPTER III.
      • THE CHRONOMETER ESCAPEMENT.
        • ADVANTAGES OF THE CHRONOMETER.
        • FRICTIONAL ESCAPEMENTS IN HIGH FAVOR.
        • FAULTS IN THE DETENT ESCAPEMENT.
        • ANTAGONISTIC INFLUENCES.
        • FACTORS THAT MUST BE CONSIDERED.
        • FUNCTIONS OF THE DETENT.
        • OBTAINING THE BEST CONDITIONS.
        • IMPORTANT CONSIDERATIONS.
        • DECISIONS ARRIVED AT BY EXPERIENCE.
        • LOCATING THE CENTER OF THE BALANCE STAFF.
        • HOW TO SET THE DISCHARGING JEWEL.
        • A GOOD FORM OF LOCKING STONE.
        • THE DETENT SPRING.
        • DETAILS OF CONSTRUCTION.
        • ORIGINAL DESIGNING OF THE ESCAPEMENT.
        • TANGENTIAL LOCKINGS.
        • THE DROP AND DRAW CONSIDERED.
        • FITTING UP OF THE FOOT.
    • CHAPTER IV.
      • HISTORY OF ESCAPEMENTS.
        • PROBLEMS TO BE SOLVED.
        • ESCAPEMENT THE MOST ESSENTIAL PART.
        • THE VERGE ESCAPEMENT.
        • OLDEST ARRANGEMENT OF A CROWN-WHEEL ESCAPEMENT.
        • GALILEO'S EXPERIMENTS.
        • THE ATTAINMENT OF ISOCHRONISM BY HUYGENS.
        • ANOTHER TWO-PENDULUM ESCAPEMENT.
        • CORRECTING IRREGULARITIES IN THE VERGE ESCAPEMENT.
        • AN INVENTION THAT CREATED MUCH ENTHUSIASM.
        • INGENIOUS ATTEMPTS AT SOLUTION OF A DIFFICULT PROBLEM.
        • VARIOUS MODIFICATIONS
        • THE GABLE ESCAPEMENT.
    • CHAPTER V.
      • PUTTING IN A NEW CYLINDER.
        • ESCAPE-WHEEL TEETH vs. CYLINDER.
        • MEASURING THE HEIGHTS.
        • TURNING THE PIVOTS.
        • HOW TO USE A CEMENT CHUCK.
        • A CONVENIENT TOOL FOR LENGTH MEASUREMENT.
        • REMOVING THE LATHE CEMENT.
    • INDEX
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