Anchor escapement

Autor:

George Henry Abbott Hazlitt

Credit:

Downloaded from George Henry Abbott Hazlitt (1898) Abbott's American Watchmaker and Jeweller, George Hazlitt & Co., Chicago, fig.5, p.19 on Google Books

Krótki link:

https://plwiki.pl/b/9d9f1

źródło:

Wikimedia Commons

Wymiary:

723 x 867 Pixel (20536 Bytes)

Opis:

Drawing of a recoil or anchor escapement for a pendulum clock, from an 1896 clockmaking manual. The top piece is called the anchor, and the escape wheel is under it. The escape wheel has 30 teeth, so when used with a pendulum beating seconds, the escape wheel rotates once per minute, allowing it to be used to turn the clock's second hand. Alterations to image: removed figure number and dotted construction lines, changed from JPEG to 4 greyscale PNG.

Licencja:

Public domain

Komentarz do licencji:

Public domain - published in US before 1923.