American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 270
s will be appointed, one to benamed by the exhibitors, one by the Council,and Lady Burdett Coutts will be requested toappoint the third.—British Horological Jour-nal. Polishing: Chronometer Detent Shoulders. We are indebted to the British HorologicalJournal for the following sketch and descrip-tion… … upon by the double-headed screws A A, work-ing into notches cut into the ends of dove-tailslips, when it is desired to find the exact centreof the shoulder to be polished. The vice or holder B is of brass, of such aheight that the top surface is under the line ofcentres to insure perfect…
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-951-606.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-171-105.webp)
