Pyro Optical Pyrometer
Accession Number: 2009.ph.82
Cylindrical leather case containing an optical pyrometer. The pyrometer consists of a black cylinder with an eyepiece on the top. On the side of the pyrometer there is a scale reading in Fahrenheit from 14-25 in hundreds of degrees. On the bottom of the temperature scale there is another scale reading from 45-70 with the label “current number” underneath it. Directly underneath the labels and scales, there is a knob which can be moved up or down from 3 to 10 feet, possibly to adjust the focal distance.
Primary Materials: Leather, Metal, glass, rubber
Old inventory number = phy1036. On the right side of the scales is a label “Pyro optical Pyrometer”, “THE PYROMETER INSTRUMENT CO. NEW YORK N.Y.”, “Serial No.”, and “Made in U.S.A.”. On the bottom of the pyrometer there is a label “58.6”.
Case: height = 26.5, diameter = 10; Instrument: height = 25.5, diameter = 7.5
For measuring thermal radiation without coming into contact with the surface of an object that is very hot or very cold.
Good: The instrumental is constitutionally intact. There are minor erosion and wear on the metal and rubber surfaces. The leather case is severely worn.
The Pyrometer Instrument Co., New York, N.Y., USA
Date of Manufacture: c. 1940
Company still active – http://www.pyrometer.com/history2.html