index plate

noun

, Machinery.

1. a plate perforated with rows of different numbers of equally spaced holes as a guide for indexing work.

Word History and Origins

Origin of index plate¹

First recorded in 1815–25

Example Sentences

The circular index plate n had marked on it opposite the respective levers the letters and characters represented by said levers.

From Project Gutenberg

The gearing to use for various numbers of flutes is shown by an index plate on the attachment.

From Project Gutenberg

This fuze is opened at the required number of seconds, by cutting close to the right of the mark on the index-plate.

From Project Gutenberg

Fig. 1887 is an end view partly in section to show the construction of the worm shaft and the index plate.

From Project Gutenberg

A device used in connection with an index plate to denote the holes to be used in any particular division of a circle.

From Project Gutenberg