6LOCATING THE INNER ANGLE OF THE EXIT PALLET.
68MAKE A LARGE ESCAPEMENT MODEL.
7CLUB-TOOTH LEVER WITH EQUIDISTANT LOCKING FACES.
69PRACTICAL LESSONS WITH FORK AND PALLET ACTION.
8ANGULAR MOTION OF ESCAPE WHEEL DETERMINED.
70QUIZ PROBLEMS IN THE DETACHED LEVER ESCAPEMENT.
9A DEPARTURE FROM FORMER PRACTICES.
71HOW TO MEASURE ESCAPEMENT ANGLES.
10AN APT ILLUSTRATION.
72DETERMINATION OF "RIGHT" METHODS.
11LOCATING THE OUTER ANGLE OF THE IMPULSE PLANES.
73ESCAPEMENTS COMPARED.
12MAKING AN ESCAPEMENT MODEL.
74HOW TO SET PALLET STONES.
13MAKING THE BRIDGES.
75HOW TO MAKE AN ESCAPEMENT MATCHING TOOL.
14IMITATION RUBIES FOR CAPPING THE TOP PIVOTS.
76DETAILS OF FITTING UP ESCAPEMENT MATCHER.
15PROFITABLE FOR EXPLAINING TO A CUSTOMER.
77ESCAPEMENT MATCHING DEVICE DESCRIBED.
16HOW LARGE SCREWS ARE MADE.
78HOW TO SET PALLET STONES.
17FANCY SCREWHEADS.
79ESSENTIAL PARTS OF THE CYLINDER ESCAPEMENT.
18HOW TO DO ACID FROSTING.
80DRAWING THE CYLINDER ESCAPEMENT.
19HOW TO PREPARE THE SURFACE.
81ADVANTAGES GAINED IN SHAPING.
20HOW TO ETCH THE SURFACE.
82THE OUTER DIAMETER OF THE CYLINDER.
21TO TEMPER AND POLISH STEEL.
83DRAWING A CYLINDER.
22HOW FLAT STEEL POLISHING IS DONE.
84THE CYLINDER PROPER CONSIDERED.
23SMOOTHING AND POLISHING.
85WHY THE ANGULAR EXTENT IS INCREASED.
24KNOWLEDGE THAT IS MOST ESSENTIAL.
86MAKING A WORKING MODEL.
25WHAT A WORKMAN SHOULD KNOW TO REPAIR A WATCH.
87PROPER SHAPE OF CYLINDER LIPS.
26EDUCATE THE EYE TO JUDGE OF ANGULAR AS WELL AS LINEAR EXTENT.
88DELINEATING AN ESCAPE-WHEEL TOOTH WHILE IN ACTION.
27FORK AND ROLLER ACTION.
89ADVANTAGES OF THE CHRONOMETER.
28HOW TO FIND THE ROLLER DIAMETER FROM THE LENGTH OF THE FORK.
90FRICTIONAL ESCAPEMENTS IN HIGH FAVOR.
29WHY THIRTY DEGREES OF ROLLER ACTION IS ABOUT RIGHT.
91FAULTS IN THE DETENT ESCAPEMENT.
30HOW TO SET A FORK AND ROLLER ACTION RIGHT.
92ANTAGONISTIC INFLUENCES.
31HOW TO DELINEATE A FORK AND ROLLER.
93FACTORS THAT MUST BE CONSIDERED.
32TO DETERMINE THE SIZE OF A JEWEL PIN.
94FUNCTIONS OF THE DETENT.
33THE THEORY OF THE FORK ACTION.
95OBTAINING THE BEST CONDITIONS.
34HOW TO DELINEATE THE PRONGS OF A LEVER FORK.
96IMPORTANT CONSIDERATIONS.
35THE PROPER LENGTH OF A LEVER.
97DECISIONS ARRIVED AT BY EXPERIENCE.
36HOW TO DELINEATE THE SAFETY ACTION.
98LOCATING THE CENTER OF THE BALANCE STAFF.
37RESTRICT THE FRICTIONAL SURFACES.
99HOW TO SET THE DISCHARGING JEWEL.
38BE FEARLESS IN REPAIRS, IF SURE YOU ARE RIGHT.
100A GOOD FORM OF LOCKING STONE.
39STUDY OF AN ESCAPEMENT ERROR.
101THE DETENT SPRING.
40HOW TO ADJUST THE PALLETS TO MATCH THE FORK.
102DETAILS OF CONSTRUCTION.
41HOW TO SET A JEWEL PIN AS IT SHOULD BE.
103ORIGINAL DESIGNING OF THE ESCAPEMENT.
42ABOUT JEWEL-PIN SETTERS.
104TANGENTIAL LOCKINGS.
43HOW TO MAKE AN ANGLE-MEASURING DEVICE.
105THE DROP AND DRAW CONSIDERED.
44HOW THE ANGULAR MOTION IS MEASURED.
106FITTING UP OF THE FOOT.
45TESTING LOCK AND DROP WITH OUR NEW DEVICE.
107PROBLEMS TO BE SOLVED.
46A FEW EXPERIMENTS WITH OUR ANGLE-MEASURING DEVICE.
108ESCAPEMENT THE MOST ESSENTIAL PART.
47HOW TO MEASURE THE ANGULAR MOTION OF AN ESCAPE WHEEL.
109THE VERGE ESCAPEMENT.
48HOW A BALANCE CONTROLS THE TIMEKEEPING OF A WATCH.
110OLDEST ARRANGEMENT OF A CROWN-WHEEL ESCAPEMENT.
49HOW BAROMETRIC PRESSURE AFFECTS A WATCH.
111GALILEO'S EXPERIMENTS.
50PROPORTIONS OF THE DOUBLE-ROLLER ESCAPEMENT.
112THE ATTAINMENT OF ISOCHRONISM BY HUYGENS.
51THEORETICAL ACTION OF DOUBLE ROLLER CONSIDERED.
113ANOTHER TWO-PENDULUM ESCAPEMENT.
52HOW TO DESIGN A DOUBLE-ROLLER ESCAPEMENT.
114CORRECTING IRREGULARITIES IN THE VERGE ESCAPEMENT.
53HOW THE GUARD POINT IS MADE.
115AN INVENTION THAT CREATED MUCH ENTHUSIASM.
54MORE ABOUT TANGENTIAL LOCKINGS.
116INGENIOUS ATTEMPTS AT SOLUTION OF A DIFFICULT PROBLEM.
55CORRECT DRAWING REQUIRED.
117VARIOUS MODIFICATIONS
56NEUTRAL LOCKINGS.
118THE GABLE ESCAPEMENT.
57PRACTICAL HINTS FOR LEVER ESCAPEMENTS.
119ESCAPE-WHEEL TEETH vs. CYLINDER.
58THE PERFECTED LEVER ESCAPEMENT.
120MEASURING THE HEIGHTS.
59WHEN POWER IS LOST IN THE LEVER ESCAPEMENT.
121TURNING THE PIVOTS.
60ABOUT THE CLUB-TOOTH ESCAPEMENT.
122HOW TO USE A CEMENT CHUCK.
61HOW TO LOCATE THE PALLET ACTION.
123A CONVENIENT TOOL FOR LENGTH MEASUREMENT.
62"ACTION" DRAWINGS.
124REMOVING THE LATHE CEMENT.
