POWERHOUSE COLLECTION

Bourdon tube thermograph made by Richard Freres, Paris, 1882-1891

Object No. H8564

During the 1800s many new graph-producing instruments were designed, including this thermograph made by Richard Freres in France between 1882 and 1891. Its inventor, Jules Richard, developed a lightweight hollow pyramid-shaped pen, slow-drying ink that didn't clog the pen, and special paper to take the ink. The drum holding the paper was turned by a clockwork motor, and the curved, flattened alcohol-filled Bourdon tube held outside the case expanded and contracted in response to changes in ambient temperature, causing the pen to draw a curve on the paper. Debbie Rudder

Loading...

Summary

Object Statement

Thermograph, recording Bourdon tube thermometer driven by clockwork, metal / paint / paper / glass, Richard Freres, Paris, France, 1882-1891

Physical Description

Thermograph, recording Bourdon tube thermometer driven by clockwork, metal / paint / paper / glass, Richard Freres, Paris, France, 1882-1891

PRODUCTION

Notes

Jules Richard patent 1880, company called Societe Richard Freres from 1882, changed to Jules Richard in 1891

SOURCE

Credit Line

Gift of Dept of Health Sydney, 1969

Acquisition Date

26 June 1969

Copyright for the above image is held by the Powerhouse and may be subject to third-party copyright restrictions. Please submit an Image Licensing Enquiry for information regarding reproduction, copyright and fees. Text is released under Attribution-Non Commercial-No Derivative licence.

Image Licensing Enquiry

Object Enquiry