'中 rolling key raising tumblers'

Item

Reference Code: GBR/1928/NRI/NRI2/10/4/2/4/2/97

Scope and Contents

This slide shows the mechanism of a common type of Chinese door-lock used for sheds, stores, workshops, etc.

English and Han traditional

Image reproduced in Science and Civilisation in China Volume 4, Part 2, fig. 488.

Joseph Needham's category: Mechanical Engineering, Locks and keys.

Glass slide 8 x 8 cm

Slide source: Hommel (1), fig. 450.

Part of the Needham Research Institute Repository

Contact:
Needham Research Institute
8 Sylvester Road
Cambridge CB3 9AF United Kingdom
+441223 762157
Library@nri.cam.ac.uk