Tower clock movement

Autor:

Unknown. Drawing is signed in lower left corner: "Ten Eyck, NY"

Credit:

Scanned 2010-03-12 from Willis I. Milham (1922) Time and Timekeepers, MacMillan Co., New York, p.299, fig.207

Krótki link:

https://www.plwiki.pl/b/5233d

źródło:

Wikimedia Commons

Wymiary:

814 x 1423 Pixel (455644 Bytes)

Opis:

Cutaway drawing of a tower clock, showing the movement, face, bell, driving weights, and lines linking them, from a book on clocks. The turret clock movement (center) kept time with a long pendulum, and was powered by two large hanging weights (bottom): one to run the timing train and one to run the striking mechanism. The movement turned a vertical shaft that through bevel gears turned four horizontal shafts to turn hands on the four clock faces on the sides of the tower. The movement also struck the hours on the bell (top). Alterations to image: removed yellowing at corners of page, increased contrast, and removed scanning artifacts due to bleed-through of text on opposite side of page.

Licencja:

Public domain

Komentarz do licencji:

Public domain in USA - published before 1923 in USA