The Watch Jobber's Handybook - A Practical Manual on Cleaning, Repairing and Adjusting: Embracing Information on the Tools, Materials Appliances and P - Paul N. Hasluck

THE WATCH JOBBER'S HANDYBOOK.

LOCKWOOD'S SERIES OF HANDYBQQ KS FOR HANDICRAFTS. >* The following Volmnes are now ready : THE METAL TURNER'S HANDYBOOK : A Practical Manual, for Workers at the Foot-Lathe, embracing Information on the Tools, Appliances and Processes employed in Metal Turning. By Paul N. Hasluck. With upwards of 100 Illustrations. Crown 8vo, 2S. cloth. "Clearly and conciselyvvritten, giving^ in brief compass just such information as is often required." —Mechanical Il'orid. " The book will be of service alike to the amateur and tlie artisan turner. It displays thorough knowledge of the subject." — Scats9na7t, THE WOOD TURNER'S HANDYBOOK : A Practical Manual, for Workers at the Lathe, embracing Information on the Tools, Materials, Appli- ances and Processes employed in Wood Turning. By Paul N, Hasluck. With upwards of loo Illustrations. Crown 8vo, 2S. cloth. "We recommend the book to young turners and amateurs. A multitude of workmen have hitherto sought in vain for a manual of this special mdxx^try."—Mechanical World. "The illustrations are well drawn and carefully printed. A thoroughly sound, practical book." — Weekly Dispatch. THE WATCH JOBBER'S HANDYBOOK: A Practical Manual on Cleaning, Repairing and Adjusting, embracing Information on the Tools, Materials, Appliances and Processes employed in Watchwork. By Paul N. Hasluck. With upwards of lOo Illustrations. Crown 8vo, 25. cloth. " We strongly advise all young persons connected with the watch trade to acquire and study this inexpensive work,' —CUrkenivell Chronicle. ' Full of useful information for young beginners. The instructions for cleaning, repairing, &c., arc given in plain language, and are made still clearer by the illustrations of the various tools." — Mechatii- cal Progress. THE PATTERN MAKER'S HANDYBOOK: A Practical Manual, embracing Information on the Tools, Materials and Appliances employed in Constructing Patterns for Founders, By Paul N. Hasluck. With upwards of 100 Illustrations. Crown 8vo, 2s. cloth. Mr. Hasluck's new volume, ' Pattern Making,' furnishes the studious workman with a very large amount of practical information," — Lloyd's News. " Mr. Hasluck's book goes into the details of construction of the simplest as well as the most com- plicated patterns likely to Be met with in practice. It is a most valuable, it not indispensable, manual for the pattern maker." — Kiio-wledgc. THE MECHANIC'S WORKSHOP HANDYBOOK: A Practical Manual on Mechanical Manipulation, embracing Information on various Handi- craft Processes. Useful Notes and Miscellaneous Memoranda. By Paul N. Hasluck, Comprising about 200 Subjects. Crown 8vo, 2s. cloth. " A very clever and useful book, which should be found in every workshop ; and it should certainly find a place in all technical schools." — Satjcrday Review. " To the young mecbanic this work has an especial value, whilst the older hand will find within its pages many ' wrinkles,' " — Mechanical Progress. THE MODEL ENGINEER'S HANDYBOOK: A Practical Manual embracing Information on the Tools, Materials, and Processes employed in Constructing Model Steam Engines. By Paul N. Hasluck. With upwards of 100 Illustrations. Crown 8vo, 2s. cloth. Mr, Hasluck has produced a \crv good httle book." — Builder. "Contains precise practical instructions as to the making of engine models; the book will be of ',^reat service to the young engineer." — Dundee Aduertiser. THE CLOCK JOBBER'S HANDYBOOK : A Practical Manual on Cleaning, Repairing and Adjusting : embracing Information on the Tools, Mate- rials, Appliances and Processes employed in Clockwork. By Paul N. Hasluck. With about loo Illustrations, %* The following is In 'preparation : THE CABINET WORKER'S HANDYBOOK: A Practical Manual, embracing Information on the Tools, Materials, Appliances and Processes employed in Cabinet Work. By Paul N. Hasluck. With about loo lUusts. LONDON : CROSBY LOCKWOOD AND SON 7, Stationers' Hall Court, Ludgate Hill, E.G.

THE WATCH JOBBER'S HANDYBOOK. ^ ^tacttcal JItanttal ON- CLEANING, REPAIKIN& & ADJUSTING: EMBRACING INFORMATION ON THE TOOLS, MATERIALS, APPLIANCES AND PROCESSES EMPLOYED IN WATGHWORK. PAUL N. HASLUCK, AUTHOK OF "LATHE WOPJC," "THE METAL TUENEK's HANDYBOOK,'' "THE WOOD TUENEk's HAKDYEOOK," ETC. WLiiii upiwarKs of ®m f^ttnUaJJ Ellustrattottsf. ^Ecantr (Elfttion, 3SeSitSc&. 6?'»V LONDON : CROSBY LOCKWOOD AND SON, 7, STATIONERS' HALL COUET, LUDGATE HILL. 1889. [ All Rights Reserved.']

Recently published, crown 8vo, 5s. cloth. LATHE WORK A Practical Treatise on the Tools, Appliances and Processes employed in the Art of Turning. By PAUL N. HASLUCK. With numerous Illustrations drawn by the Author. Opinions of the Press. "Written by a man who knows not only how work ought to be done, but who also knows how to do it, and how to convey his knowledge to others. To all turners this book would be valuable." — Engineering. " We can safely recommend the work to young engineers. To the amateur it will simply be invaluable. To the student it will convey a great deal of useful inlormation." — Engineer. " A compact, succinct and handy guide to lathe-work did not exist in our language until Mr. Hasluck, by the publication of this treatise, gave the turner a true vade meciim.'' — House Decorator. CROSBY LOCKWOOD & SON, 7, Stationers' Hall Court, Ludgate Hill, London, E.C.

PREFACE. This handbook is intended for the use of young beginners in their elementary practice with watchwork. The technical terms will be useful for reference to many who are older hands ; the technology of the horological art having been somewhat neglected till quite recently. The early chapters embrace information on the repair and adjustment of watchwork which 1 wrote for the guidance of young beginners, and published intermittingly in a periodical. Several readers urged that this matter should be reproduced in book-form, and assured me that it would benefiii a wide circle of young jobbers and have a large sale. The Glossary of Terms used in Watchwork, which forms a large portion of this book, was prepared several years ago, and forms part of what was intended to be a comprehensive treatise on Practical Horology. London, P. N. HASI.UCK. March, 1887,

CONTENTS. CHAP. PAGli I. Early Time Measures and Modern Watches ii— 3 II. A Watch Movement and How to Take it Apart ... 14—24 III. Examining, Cleaning and Putting Together 25—34 IV. Repairs and Adjustment 35—49 Glossary of Terms, Tools, Materials, Parts and Processes Used in Watchwork 50—140

LIST OF ILLUSTRATIONS. 1 IG. PAGE 1 Anvil to Hold in Bench-vice .. 51 2 Anvil Mounted on Block .. • 51 3 Plain Arbor 52 4 Split Arbor .. .. .. ..52 5 Archimedian Drill-stock .. -.52 6 Balance Poising-tool .. .. 53 7 Balance Poising-tool .. -- 53 8 Bench-vice 57 g Bow Pliers 58 10 Bow Saw . . .. ..58 II, 12 Bow Saws .. ..59 13 Bumpine-up Stake 61 14 Plain Calioers .. ..62 15 Gauge Calipers .. ..62 16 Centring Tool 6s 17 Arbor Chuck .68 i3 Arbor Chuck 69 19 Hollow-cone Chuck ,. 6g 20 Lap to fit Cone Chuck .. 6g^ 2r Cone-point to fit Cone Chuck . . 69 12 Screw Chuck .. .. 69 23 Lap to fit Screw Chuck . , . . 69 24 Face Plate 69 25, 26, 27, 28 Cement Chucks . . 70 2g Section of Shoulder Chuck ., 70 30 Taper-mouth Screw Chuck . . 70 31, 32,33,34 Wire Chucks. Full size Sections and Perspective Illus- trations 71 35i 36 Step Chucks 71 37 Universal Face-plate or Chuck .. 72 38 Pump Centre .. .,72 39 Clamps 72 40 Counter-shaft . . . , 76 41 Counter-shaft .. ..76 42 Depthmg Tool 80 43 Dog ..82 44 Douzieme Gauge 83 45 Drill-stock 85 46 Eye-glass gr 47 48, 49 Filing Attachments ,, 93 50 Fly-wheel 93 t Hammer . . ,. ..96 5?, S^ Hand-tongs ,. !! g6 54 Hand-vice . . .. 97 55 Jacot-tool .. ,. !. g3 FIG. PAGE 56, 57 Jacot-tool Centres .. ..98 58 Jewel Setter loi 59 Centre 100 60 Cutter Stock 100 61 Stop Collar 102 62 Jewel Cutter 102 63 Jewel Gauge 102 64 Mo3eley's No. i Hard Latlie 104 65 Section of Lathe-bed .. . . 105 66 Moseley's No. i Soft Lathe 106 67 Half-open Tail-stock .. .. 107 68 Traverse Spindle . . . . 107 69 Light-runnmg Spindle .. .. 108 70 Screw Tail-stock 108 71 Universal Head no 72 Whitcomb Lathe .. .. log 73 Universal Head .. . .. no 74 Screw Tail-stock in 75 Mainspring Punch .. .. 112 76 Mainspring Winder .. .. 113 77 Chucks for Mainspring Winder n? 78, 7g Nippers .115 80 Pin Slide 117 81 Pin Vice n8 82 Pinion Gauge .. ,. 118 83 Height Gauge .. .. n8 84 Pinion Stake .. .. ii^i 85 Pivot-drill 119 86 Pivot Polisher .. ,. 120 87 Pivot Polisher ., . . 120 88 Pliers 121 go Screw-end Finisher ., .. 124 gi Chucks for Screw-end Finisher 124 92 Screw Ferrule .. ..125 g3 Slide-rest .. .. ., 12a g4 Slide-rest .. ... 128 gS, g6 Sliding Tongs .. . ..129 97 Stepping Appliance .. 130 98 Plain Swing Rest 132 99 Jewelling Rest ., .,132 TOO Swing Rest 133 loi Timing Stand .. .. 135 102 Upright Tool 136 103, 104 Wheel-cutters i37 105 Wheel-cutter .. .. 138 106 Wig-wag 139

THE WATCH JOBBER'S HANDYBOOK. CHAPTER I. EARLY TIME MEASURERS AND MODERN WATCHES. HERE can be no doubt that the measurement of time was first effected, and probably even suggested, by observing the heavenly bodies. When man first looked up to heaven the apparent course of the sun and that of the moon served to distinguish the days and months. These were the first divisions of time, and doubtless served the requirements of the age. A natural day is the time required for the complete rotation of the earth on its axis, so as to bring the sun in the same relative position. This is technically called a solar day, during which the earth makes a little more than one absolute rotation. A sidereal day is the time occupied by the earth in accomplishing one absolute rotation. A solar day is the average length of all the solar days in a year, of which there are 365'2422i6, each divided into twenty-four hours. A sidereal day is 23 hours, 56 minutes, and 4'i seconds ; that is 3 minutes and nearly 56 seconds shorter than a mean solar day. A practical method of indicating sidereal and mean time

2 THE WATCH JOBBER'S HANDYBOOK. with the same clock is to fix a wheel of fifty teeth to an axis revolving once in twenty-four hours. Let this wheel drive one having thirty teeth, carrying on the same axis one of one hundred and eighty-two teeth. This last wheel must drive one of two hundred and eleven teeth, having on the same axis one of a hundred and ninety-six, and let this drive a wheel having two hundred and eighty-one teeth. This last wheel will revolve once in 86i64"o9o6 solar seconds, which is the length of a sidereal day to within five places of decimals. The error being, in fact, only about one second in two thousand years. The sub-division of days into hours was only adopted when mechanical means were made available for measuring time. The earliest time measurers have the dial divided into twenty-four equal spaces. Once round the dial was equal to a day and a night. The Romans divided days and nights into periods of twelve hours each. The first mention of a period of time, translated by the word hour, occurs in the Bible in connection with Nebuchadnezzar's dream. The Babylonian king having recounted his vision, we read in the Book of Daniel : — " Then Daniel, whose name was Belteshazzar, was astonished for one hour." It is probable, however, that the modern hour was not meant. The period of seven days, which we call a week, has no representative in the celestial world. Its origin is obscure, but some writers suppose it to be a perpetuation of the traditional account of the earth's creation. It is, at any rate, certain that the sub-division of seven days has been used from time immemorial. Sundials were the first instruments used to divide the day into smaller portions .of time. From observing that the sun's rays cast a shadow the sundial was probably suggested ; it is impossible to fix any date for this. China was the birth-

The Watch Jobber's Handybook - A Practical Manual on Cleaning, Repairing and Adjusting: Embracing Information on the Tools, Materials Appliances and P - Paul N. Hasluck

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