A Rotameter slide rule
Object No. 87/1612-11
Sizing factor slide rule, 'Rotameter', cardboard, made by Fisher & Porter Co, Pennsylvania, United States of America, 1968
Loading...
Summary
Physical Description
Sizing factor slide rule, 'Rotameter', cardboard, made by Fisher & Porter Co, Pennsylvania, United States of America, 1968 Cardboard and plastic rectangular slide rule with black and green print. A large cardboard rule that slides in and out of the exterior measuring rule. There are three plastic windows that make visible the inner ruler that moves through the outer rule. One side of the ruler has a liquid service which is set specifically to measure the gravity of liquid and the other side measures gas and its specific gravity.
DIMENSIONS
Height
80 mm
SOURCE
Acquisition Date
18 December 1987
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