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
Free

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
Free
Book Description

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.
      • 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.
    • 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.
    • 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.
      • 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.
    • 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.
    • 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.
      • 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.
    • 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.
    • 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.
      • 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.
    • 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.
    • 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.
      • 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.
    • 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.
    • 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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