Watch and Clock Escapements

About this eBook

Author

Anonymous

Title

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

Credits

E-text prepared by Robert Cicconetti, Janet Blenkinship, and the Project Gutenberg Online Distributed Proofreading Team

Language

English

LoC Class

TS: Technology: Manufactures

Subject

Clocks and watches -- Escapements

Category

Text

eBook-No.

17021

Project Gutenberg

https://www.gutenberg.org/ebooks/17021

Release Date

November 6, 2005

Copyright

Public domain in the USA.

Contents

1. 1.WATCH AND CLOCK — ESCAPEMENTS — NEARLY TWO HUNDRED ORIGINAL ILLUSTRATIONS
2. 2.PREFACE
3. 3.CONTENTS
4. 4.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.
5. 5.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.
6. 6.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.
7. 7.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.
8. 8.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.
9. 9.INDEX

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