The Aqua Torch the L&R Aqua Torch Is Particularly Well Suited Where a High Degree of Cleanliness and Flame Control Are Required
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••• Cas-Ker's Spring Book Specials!! The available now! Complete A fine new book tells all about how a person with average skills can make useful and imaginative clocks. Written from a do-it youxselfer's viewpoint, the subject is lightly and skillfully handled. Guide to More than forty clocks are illustrated with many step-by.,;tep photographs. Over three years in the making, with pictures and illustrations by the author. The first really authentic book on the American subject. A book that will not only inform you ... it will delight you. A MUST for the hobbyist, woodworker, rock hound, scavenger, and professional clockmaker. Pocket Watches 1981 by Cooksey Shugart 52 pages Black-and-white photographs and 530 drawings illustrate this over 200 conclusive guide to collectible American pocket watches. adjustment, and gold or silver photos Smart collectors are now content; clear, illustrated des buying vintage American pocket criptions of the internal workings and watches as both a hobby and a of a pocket watch; advice on hedge against inflation. Finally, assembling a collection; col drawings for the more than eighty thou lecting on a limited budget; sand avid pocket watch collec collecting for investment; and tors, here is an illustrated manual much, much more. only $4-95 that includes all the valuable information and current prices Cooksey Shugart is a member every antique buff and collec of the National Association of tor will need. With the "Com Watch and Clock Collectors. Plus $1.00 First plete Guide" both the pro Class postage and fessional and the novice will be 530 illustrations including 8 packing charge. equipped to make on-the-spot pages of full color. 6 x 9/256 judgments about the make, pages .••...•. $8.95 paper. model, quality, and current value of any American pocket watch. Included is the history of the NEW BOOK pocket watch, with capsule biographies of the major Ameri can manufacturers, along with only $8.95 a complete list of current manu Plus $1.50 packing and facturers; a step-by.,;tep guide First Class or UPS del. AN UNUSUAL BOOK to determining age, balance This is truly the first comprehensive book on the subject of making clocks using battery operated movements. Excellent quality from cover to cover ... the book shows many exceptional clocks, many that you can make easily. The author offers many plans ••. the THE DIGITAL WATCH styles are both traditional and contemporary •.• plus a section of "found" things made into useful and sometimes amusing clocks. REPAIR MANUAL There are sections that show you how to install movements and clock hands; how to design your own dials, some dials on the 2ND EDITION market today, plus some working tips on designing and putting to ONLY gether many clock cases. A very thorough book that is a must A complete manual on for any novice clockmaker and an inspiration to the experienced. $19.95 the repair techniques of LED and LCD watches. ABOUT THE AUTHOR Please add $1 .2 5 by Charlie Plumb is a successful Graphic Designer. He first became for shipping interested in battery operated clock movements a few years ago LOUIS A. ZANONI while handling a graphic assignment for a large distributor of clock movements. As he tells it, he fumbled his way through the first Learn failure analysis and repair techniques by un few clocks without any information to guide him. Combining his derstanding the fundamentals for ALL types of quartz design and shop skills, his inventive imagination, and a variety of materials, he has produced many unusual and attractive clocks ... watches, including the electronic portion of the analog they form the basis for this clear, concise and well-illustrated book. quartz timepieces. The author has an uncanny ability to find simple solutions to difficult problems. We highly recommend this book loaded with • No Previous Watch Experience Necessary exceptional clockmaking ideas. • No Electronic Background Required • Easy to Read and Understand --------------------------, • Fully Illustrated Enclosed find $ , for which ship the following books: I • © Copyrighted 1980 "How You Can Make Battery Operated Clocks .•• Easily," $4.95 1 plus $1.00 postage & handling. "The Complete Guide to American 1 Pocket Watches 1981," $8.95 plus $1.50 postage and handling. "The Digital Watch Repair Manual," $19.95 plus $1.25 postage I & handling. I Name I Cas-~&rr Co. Address l P.O. Box 2347, Drawer A, Cincinnati, OH 45201 City _________ _ State ____ Zip __ 1 Telephone: (513) 241-7075 VOLUME 5, NUMBER 5 MAY1981 Special Feature: The Latest Word On YOUR SHOP CHEMICALS 12 Official Publication of the American Watchmakers Institute JOE CROOKS THE PRESIDENT'S MESSAGE 4 Present and Future Finances WMJDA Convention ARCHIE B. PERKINS 8 TECHNICALLY WATCHES The Cylinder Escapement Happenings ORVILLE R. HAGANS 10 IN THE SPOTLIGHT Lever Clock Without Hairspring 18 SEAN C. (PAT) MONK ESSENCE OF CLOCK REP AIR 16 Antique Gilbert Calendar Clock HENRY B. FRIED 20 QUESTIONS AND ANSWERS Duplex Escapement Watches Burckhardt Lectures: FRED S. BURCKHARDT THE ROCK QUARRY 22 Watch History and Appreciation WATCH HISTORY & OTTO BENESH 24 CLOCK CHATTER Simple Measuring Devices APPRECIATION HENRY B. FRIED 26 REPAIRING THE DUPLEX ESCAPEMENT Part II 22 MARVIN E. WHITNEY 30 THE SHIP'S CHRONOMETER American Chronometer Makers: Part VII More on the JOSEPH RUGOLE 38 WATCH ADJUSTMENTS Bimetallic Temperature Adjustments DUPLEX MILTON C. STEVENS AWINEWS 40 An Open Letter to A WI ESCAPEMENT WESDOOR SALES TALK 42 Clerk or Salesperson? GEORGESCHLEHR SCHOLASTICALLY SPEAKING 26 44 A Tall Case for Clock Repair MARSHALL F. RICHMOND PICKLE BARREL 46 Miscellaneous Jewelry Repair DEPARTMENTS Readers Write I 6 ROBERT F. BISHOP AFFILIATE CHAPTER COLUMN New Members I 6 50 Affiliate Chapter Glossary A WI Bench Courses I 14 Association News I 51 Bench Tips I 57 HOROLOGICAL TIMES (ISSN0145-9546) is published monthly and copyrighted by the American News in the Trade I 62 Watchmakers lnstitue, 3700 Harrison Avenue, Cincinnati, Ohio 45211. Subscription, $30.00 per year, New Products and Literature I 64 $4.00 per copy in the United States and $36.00 per year, $5.00 per copy outside the United States. Classifed Ads I 66 Second class postage paid at Cincinnat, Ohio. POSTMASTER: Send address changes to HORO LOGICAL Advertiser's Index I 68 TIMES, P.O. Box 11011, Cincinnati, OH 45211. Dates to Remember I 68 Editorial Executive and Editorial Offices AWl Central According to a very reliable source, 23.7% of older cannon pinions P.O. Box 11011 3700 Harrison Avenue must be tightened on their posts when a watch is overhauled. Cincinnati, Ohio 45211 We all agree that this percentage figure is correct, because when Telephone: (513) 661-3838 we first started in the watchmaking profession, 23 or 24 cus Harold]. Hennan: Editor tomers out of 100 would come back to us, complaining that the Maury Norrell: Managing Editor second hand worked fine, but the other two didn't turn right. Virginia C. Montgomery: Associate Editor Industry was quick to respond .to this service problem. They LuAnn Martin: Art Director reduced the size of the cannon or friction pinion, and sometimes Sue Scott: Business Manager even hid it between the plates of the movement. The watchmaker Mildred Howard: Circulation Manager had to respond with increased repair prices, and the consumer Lee Rothan: Circulation bore the brunt of industry's indifference. Margie M. Brater: Circulation But now we get to a replay of the previous cannon pinion action. Technical Editors: This happens to be the step motor caper. Just about every manu Otto Benesh Archie B. Perkins facturer manages to place the step motor wheel under a common James H. Broughton Marshall F. Richmond Fred S. Burckhardt Joseph Rugole bridge with the other train wheels. The result is that the train Steven G. Conover Leslie L. Smith must be "dumped," because the magnetized step motor collects Joe Crooks William 0. Smith, Jr. steel fragments that must be removed in order for the movement Paul Fisk James L. Tigner Henry B. Fried Marvin E. Whitney to perform properly. Increased labor time for the watchmaker Orville R. Hagans means increased repair prices for the consumer. Ewell D. Hartman Gerald G. Jaeger Now then, if you were a manufacturer, wouldn't you design a Sean C. Monk quartz step motor with a separate bridge for the step motor? Robert A. Nelson And wouldn't you present your product to the jeweler-watchmaker A WI Officers: with the point that it is easily serviced because the step motor Joe Crooks: President alone can be removed and then the train can be ultrasonically Dorothy M. Adennan: 1st Vice President cleaned without danger of flux particles remaining in the move Joseph G. Baier, PhD: 2nd Vice President ment? Sure you would, even if the product cost a few pennies James H. Broughton, CEWS: Secretary Marvin E. Whitney, CMW, CMC: Treasurer more. A WI Directors: They won't. Otto Benesh, CMC Jay Foreman Henry Fried, FAWI, CMW, CMC Orville R. Hagans, FAWI, CMW, CMC Ewell Hartman, CMW Gerald G. Jaeger, CMW, CEWS Donald W. Leverenz, CMW On the Front Sean C. Monk, CMW Robert A. Nelson, CMW, CEWS CHERRY BLOSSOMS, as featured on our May cover, are a breathtaking springtime attraction in many areas of the Robert F. Bishop: Affiliate Chapter Director country. In our nation's capitol, thousands of people flock to see the trees in blossom along the Potomac River. Around 900 George Schlehr, CMW: Research and Education Council Chairman of the flowering Oriental cherry trees were given as a gift to the people of Washington by the people of Tokyo in 1912. Milton C. Stevens: Executive Secretary These were planted on both sides of the Potomac River in Michael P.